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Page 1: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

MW-2000888-01

en

Installation and Service Manual

Floor-standing condensing gas boiler

Gas 120 ACEGas 120 ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

Dear CustomerThank you very much for buying this appliancePlease read through the manual carefully before using the product and keep it in a safe place for later reference In order to ensure continued safe and efficient operation we recommend that the product is serviced regularly Our service and customer service organisation can assist with thisWe hope you enjoy years of problem-free operation with the product

Contents1 Safety 5

11 General safety instructions 512 Recommendations 713 Liabilities 8

131 Manufacturers liability 8132 Installers liability 9133 Users liability 9

2 Symbols used 1021 Symbols used in the manual 1022 Symbols used on the appliance 10

3 Technical specifications 1131 Homologations 11

311 Directives 11312 EC Declaration of Conformity 11313 Gas categories 11314 Certifications 11315 Factory test 12

32 Technical data 12321 ErP technical parameters 14322 Circulating pump (not provided) 14323 Sensor specifications 15

33 Dimensions and connections 1634 Electrical diagram 17

341 Electrical diagram of boiler 17

4 Description of the product 1941 General description 1942 Operating principle 19

421 Gasair setting 19422 Settings and safety devices 19

43 Main boiler components 2044 PCBs 20

441 Description of the CU-GH-08 PCB 2045 Standard delivery 2046 Accessories amp options 20

5 Installation 2151 Installation regulations 2152 Choice of the location 21

521 Data plate 21522 Space required - Boiler ventilation 21523 Ventilation 22524 Fitting the outdoor sensor 23

53 Transport 2454 Unpacking and preparing the boiler 2455 Hydraulic connections 27

551 Water treatment 27552 Flushing new installations and installations less than 6 months old 28553 Flushing an existing installation 28554 Connecting the heating circuit 28555 Connecting the condensate discharge pipe 28556 Filling the siphon 29

56 Gas connection 29561 Gas supply 30

57 Air supplyflue gas outlet connections 30571 Classification 30572 Lengths of the airflue gas pipes 33573 Dimensions of flue gas outlet pipe 34574 Connection to the flue gas pipe 35

6 Operation 3761 Settings 37

Contents

7717202 - v03 - 24062019 Gas 120 ACE 3

7 Maintenance 3871 General 3872 Specific maintenance operations 38

721 Cleaning the siphon 38722 Checking the ionisation current 39723 Replace the ionizationignition electrode 40724 Servicing the forced flue connection pipes 40725 Checking the burner and cleaning the heat exchanger 40726 Checking the non-return valve 42

8 Decommissioning 4381 Decommissioning procedure 4382 Recommissioning procedure 43

9 Disposal and recycling 44

10 Environmental 45101 Energy savings 45102 Room thermostat and settings 45

11 Warranty 46111 General 46112 Terms of warranty 46

12 Spare parts 47121 General 47122 Spare parts lists 47

1221 Exchanger 471222 Gas circuit 481223 Hydraulic circuit 501224 Boiler body 511225 Casing 521226 Boiler PCB housing 53

13 Appendix 54131 Package fiche - Boilers 54132 Product fiche - Temperature Controls 55133 Product fiche 55

Contents

4 Gas 120 ACE 7717202 - v03 - 24062019

1 Safety

11 General safety instructions

For the installer and end user

DangerThis appliance can be used by children aged from 8 years and above and persons with reduced physical sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved Children shall not play with the appliance Cleaning and user maintenance shall not be made by children without supervision

CautionDo not touch the flue gas pipes Depending on the boiler settings the temperature of the flue gas pipes can rise to over 60degC

CautionDo not touch radiators for long periods Depending on the boiler settings the temperature of the radiators may exceed 60degC

CautionTake precautions with the domestic hot water Depending on the boiler settings the domestic hot water temperature may exceed 65degC

Danger of electric shockBefore any work switch off the mains supply to the boiler

For the installer

1 Safety

7717202 - v03 - 24062019 Gas 120 ACE 5

DangerIf you smell gas1 Do not use a naked flame do not smoke do

not operate electrical contacts or switches (doorbell light motor lift etc)

2 Shut off the gas supply3 Open the windows4 Locate the probable leak and seal it

immediately5 If the leak is before the gas meter contact the

gas supplier

DangerIf you smell flue gases1 Switch off the appliance2 Open the windows3 Locate the probable source of the flue gas

leak and fix it immediately

WarningThe condensation drain must not be changed or sealed If a condensate neutralisation system is used the system must be cleaned regularly in accordance with the instructions provided by the manufacturer

For the end user

DangerIf you smell gas1 Do not use a naked flame do not smoke do

not operate electrical contacts or switches (doorbell light motor lift etc)

2 Shut off the gas supply3 Open the windows4 Evacuate the property5 Contact a qualified professional

DangerIf you smell flue gases1 Switch off the appliance2 Open the windows3 Evacuate the property4 Contact a qualified professional

1 Safety

6 Gas 120 ACE 7717202 - v03 - 24062019

12 Recommendations

DangerFor safety reasons we recommend fitting smoke and CO2 detectors and alarms at suitable places in your home

CautionThe boiler must always be connected to the protective earthingEarthing must comply with the prevailing installation standardsEarth the appliance before making any electrical connections

For the type and calibre of the protective equipment refer to the chapter Electrical Connections in the Installation and Service Manual

CautionIf a power cord comes with the appliance and it turns out to be damaged it must be replaced by the manufacturer its after sales service or persons with similar qualifications in order to obviate any danger

CautionA disconnection device must be fitted to the permanent pipes in accordance with the installation rules

CautionPower the appliance via a circuit that includes an omni-polar switch with contact opening distance of 3 mm or more

CautionDrain the boiler and heating system if the home is left empty for a long period of time and there is a chance of frost

CautionRemove the boiler casing only to perform maintenance and repair work Always put the casing back in place after such work

CautionTo enjoy warranty cover no modifications must be made to the boiler

1 Safety

7717202 - v03 - 24062019 Gas 120 ACE 7

CautionThe frost protection function only protects the boiler not the heating system

CautionThe frost protection function does not work if the boiler is powered off

CautionThe appliance should be switched to Summer or Frost Protection mode rather than be switched off in order to guarantee the following functions

Avoidance of pumps blockingFrost Protection

ImportantRespect the minimum and maximum water inlet pressure to ensure correct operation of the boiler refer to the chapter Technical Specifications

ImportantOnly qualified professionals are permitted to install the boiler in accordance with prevailing local and national regulations

ImportantNever remove or cover labels and data plates affixed to the boilerLabels and data plates must be legible throughout the entire lifetime of the boiler Immediately replace damaged or illegible instructions and warning labels

ImportantKeep this document close to the place where the appliance is installed

13 Liabilities

131 Manufacturers liability

Our products are manufactured in compliance with the requirements of the various Directives applicable They are therefore delivered with the marking and any documents necessary In the interests of the quality of our products we strive constantly to improve them We therefore reserve the right to modify the specifications given in this documentOur liability as manufacturer may not be invoked in the following cases

1 Safety

8 Gas 120 ACE 7717202 - v03 - 24062019

Failure to abide by the instructions on installing and maintaining the applianceFailure to abide by the instructions on using the applianceFaulty or insufficient maintenance of the appliance

132 Installers liability

The installer is responsible for the installation and initial commissioning of the appliance The installer must observe the following instructions

Read and follow the instructions given in the manuals provided with the applianceInstall the appliance in compliance with prevailing legislation and standardsCarry out initial commissioning and any checks necessaryExplain the installation to the userIf maintenance is necessary warn the user of the obligation to check the appliance and keep it in good working orderGive all the instruction manuals to the user

133 Users liability

To guarantee optimum operation of the system you must abide by the following instructions

Read and follow the instructions given in the manuals provided with the applianceCall on a qualified professional to carry out installation and initial commissioningGet your installer to explain your installation to youHave the required inspections and maintenance carried out by a qualified installerKeep the instruction manuals in good condition close to the appliance

1 Safety

7717202 - v03 - 24062019 Gas 120 ACE 9

2 Symbols used

21 Symbols used in the manual

This manual uses various danger levels to draw attention to special instructions We do this to improve user safety to prevent problems and to guarantee correct operation of the appliance

DangerRisk of dangerous situations that may result in serious personal injury

Danger of electric shockRisk of electric shock

WarningRisk of dangerous situations that may result in minor personal injury

CautionRisk of material damage

ImportantPlease note important information

SeeReference to other manuals or pages in this manual

22 Symbols used on the appliance

1 Alternating current2 Protective earthing3 Before installing and commissioning the appliance carefully read

the instruction manuals provided4 Dispose of used products through an appropriate recovery and

recycling structure5 Caution danger of electric shock live parts Disconnect the mains

power prior to carrying out any work

Fig1

1 2

MW-2000068-1

1

2

3

4

5

2 Symbols used

10 Gas 120 ACE 7717202 - v03 - 24062019

3 Technical specifications

31 Homologations

311 Directives

This product has been manufactured and put into circulation in accordance with the requirements and standards of the following European Directives

Gas Appliances Regulation (EU) (2016426)

Pressure Equipment Directive 201468EU

Electromagnetic Compatibility Directive (201430EU)

Low Voltage Directive (201435EU)

Efficiency Directive (9242EEC)

European Ecodesign Directive (2009125EC)EU Regulation (8132013)

Energy Labelling Framework Regulation (EU) (20171369)EU Regulation (8112013)

BS 7074 Part 1 Application selection and installation of expansion vessels and ancillary equipment for sealed water systemsBS 6644 Specification for the installation of gas-fired condensing boilers with a nominal output exceeding 70 kWBS EN 12828 Design for water-based heating systemsBS EN 13831 Closed expansion vessels

Apart from the legal provisions and Directives the additional Directives described in these instructions must also be observedFor all provisions and Directives referred to in these instructions it is agreed that all addenda or subsequent provisions will apply at the time of installation

312 EC Declaration of Conformity

The unit complies with the standard type described in the EC declaration of conformity It has been manufactured and commissioned in accordance with European directivesThe original declaration of conformity is available from the manufacturer

313 Gas categories

Tab1 Czech Republic Spain Greece Portugal Switzerland UK

Category Gas type Connection pressure (mbar) Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

II2H3BP G20 (H gas) 20 X X X G30G31 (butanepropane) 303750 X X X

314 Certifications

Tab2 CertificationsCE number 0085CT0009NOx class 6 (EN 15502-1)

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 11

Type of flue gas connection Chimney

B23B23PB33

Forced flue

C13C13XC33C33XC43C43XC53C63C63XC83C83XC93C93X

315 Factory test

Before leaving the factory each boiler is optimally set and tested for

Electrical safetySettings (CO2)Water tightnessGas tightnessParameter setting

32 Technical data

Tab3 GeneralGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Nominal heat output (Pn)Central heating operation (80 degC60 degC)

minndashmax kW 120 - 615 141 - 842 189 - 1039

Nominal heat output (Pn)Central heating operation (50 degC30 degC)

minndashmax kW 135 - 650 158 - 895 212 - 1097

Nominal input power (Qn)Heating mode (Hi)

minndashmax kW 122 - 620 146 - 860 196 - 1070

Nominal input power (Qn)Heating operation (Hi) G31 (propane)

minndashmax kW 122 - 620 221 - 860 212 - 1070

Nominal input power (Qn)Central heating operation (Hs)

minndashmax kW 137 - 689 162 - 955 217 - 1189

Full load heating mode efficiency (Hi) (8060 degC) (9242EEC)

992 979 971

Full load heating mode efficiency (Hi) (50 degC30 degC)

1046 1041 1025

Part load heating mode efficiency (9242EEC) (return temperature 30 degC)

1104 1081 108

Tab4 Gas and flue gas valuesGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115G20 gas consumption (H gas)(1) minndashmax m3h 13 - 66 15 - 91 20 - 117Gas consumption G31 (propane)(1)

minndashmax m3h 05 - 25 09 - 35 09 - 45

3 Technical specifications

12 Gas 120 ACE 7717202 - v03 - 24062019

Gas 120 ACE Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

Gas resistance G20 (H gas)(2) max mbar 20 25 30BREAM NOx mgkWh 32 29 35Flue gas quantity minndashmax m3h 18 - 90 22 - 125 30 - 160Flue gas temperature minndashmax degC 30 - 120 30 - 120 30 - 120Maximum counter pressure (Pn) Pa 100 160 220

(1) Gas consumption based on lower heating value in standardised conditions T=28815 K p=101325 mbar Gag 3033 G25 2925 G31 8800 MJm3

(2) Gas resistance between boiler connection and measurement point on the gas valve unit

Tab5Gas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Gas inlet pressure G20 (H gas) minndashmax mbar 17 - 25 17 - 25 17 - 25G30G31 gas inlet pressure (ButanePropane) minndashmax mbar 37 - 50 37 - 50 37 - 50G31 gas inlet pressure (Propane) minndashmax mbar 37 - 50 37 - 50 37 - 50

Tab6 Central heating circuit dataGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Water content l 71 101 101Water operating pressure min bar 08 08 08Water operating pressure (MOP) max bar 40 40 40Water temperature max degC 110 110 110Operating temperature max degC 90 90 90Pressure drop secondary circuit (ΔT = 20 K) mWC 17 16 26Maximum permitted temperature difference(1) max degC 40(1) 40(1) 35(1)

(1) with a maximum flow temperature of 80 degC

Tab7 Electrical dataGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Supply voltage (AC) V 230 230 230Power consumption ndash full load max W 92 124 180Power consumption - low load max W 25 24 344Power consumption ndash standby max W 6 5 9Electrical protection rating IP X1B X1B X1BFuses Main A 10 10 10

Tab8 Other dataGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Total weight (empty) kg 98 109 109Average acoustic level at a distance of one meshytre from the boiler

dB(A) 40 45 45

SeeThe back cover for contact details

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 13

321 ErP technical parameters

Tab9 Technical parameters for boiler space heatersProduct name Gas 120 ACE

- 65Gas 120 ACE - 90

Gas 120 ACE - 115

Condensing boiler Yes Yes YesLow-temperature boiler(1) No No NoB1 boiler No No NoCogeneration space heater No No NoCombination heater No No NoRated heat output Prated kW 62 84 104

Useful heat output at rated heat output and high temperature regime(2)

P4 kW 615 842 1039

Useful heat output at 30 of rated heat output and low temperature regime(1)

P1 kW 205 279 347

Seasonal space heating energy efficiency ƞs 94 - -Useful efficiency at rated heat output and high temperature regime(2)

ƞ4 894 882 875

Useful efficiency at 30 of rated heat output and low temperature regime(1)

ƞ1 995 974 973

Auxiliary electricity consumption Full load elmax kW 0092 0124 0180Part load elmin kW 0025 0024 0034Stand-by PSB kW 0006 0005 0009

Other specifications Standby heat loss Pstby kW 0114 0119 0119Ignition burner power consumption Pign kW - - -Annual energy consumption QHE GJ 190 - -Sound power level indoors LWA dB 55 61 60Emissions of nitrogen oxides NOx mgkWh 29 41 41(1) Low temperature means for condensing boilers 30degC for low temperature boilers 37degC and for other heaters 50degC return temperature

(at heater inlet)(2) High temperature regime means 60 degC return temperature at heater inlet and 80 degC feed temperature at heater outlet

SeeThe back cover for contact details

322 Circulating pump (not provided)

The boiler is supplied without a circulating pump Take the boiler pressure drop and system pressure drop into account when selecting a pump

CautionThe maximum output of a pump that can be connected is 200 W Above this use an auxiliary relay adapted to the pump output

If possible install the pump in direct connection to the boiler on the return circuit

For more information see

Circulating pump

The maximum difference in temperature between the flow water and the return water and the speed at which the boiler temperature increases are restricted by the boilers control system

3 Technical specifications

14 Gas 120 ACE 7717202 - v03 - 24062019

Tab10 Minimum flow to be guaranteedMinimum flow to be guaranteed in the boiler Unit Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Minimum flow rate litreshour 290 340 455

A Dynamic head in mWcB Water flow rate (m3h)C Pressure drops

ΔT Maximum temperature difference between the flow water and the return water in the boiler

A Dynamic head in mWcB Water flow rate (m3h)C Pressure drops

ΔT Maximum temperature difference between the flow water and the return water in the boiler

A Dynamic head in mWcB Water flow rate (m3h)C Pressure drops

ΔT Maximum temperature difference between the flow water and the return water in the boiler

323 Sensor specifications

Outside temperature sensor specifications

Tab11 Outside temperature sensorTemperature degC -20 -16 -12 -8 -4 0 4 8 12 16 20 24Resistance Ω

(Ohm)2392 2088 1811 1562 1342 1149 984 842 720 616 528 454

Fig2 Pressure drops for Gas 120 ACE - 65

MW-2000671-3

T=20KT=40K

175

Fig3 Pressure drops for Gas 120 ACE - 90

MW-2000673-3

T=20KT=40K

362

Fig4 Pressure drops for Gas 120 ACE - 115

MW-2000674-3

T=20KT=35K

447

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 15

Boiler sensor return sensor

Tab12 Boiler sensor return sensorTemperature in degC

-20 -10 0 10 20 25 30 40 50 60 70 80 90 100 110

Resistance in Ω

98932 58879 36129 22804 14773 10000 9804 6652 4607 3252 2337 1707 1266 952 726

Circuit flow sensor domestic hot water sensor and system sensor

Tab13 Circuit flow sensor domestic hot water sensor and system sensorTemperature in degC 0 10 20 25 30 40 50 60 70 80 90Resistance in Ω 32014 19691 12474 10000 8080 5372 3661 2535 1794 1290 941

Specifications of the boiler flue gas sensor

Tab14 Boiler flue gas sensorTemperature degC 0 10 20 30 40 50 60 70 80 90 100Resistance Ohm 66000 40000 20000 16100 10600 7160 4940 3480 2490 1810 1340

33 Dimensions and connections

Fig5

MW-2000684-03

A

D

E

FG

BC

600 605150

92

132

240

141

418

5

2

34

107

105

95

100

1

255145

1 Heating circuit flow (R114)2 Gas inlet (G34)3 Heating circuit return (R114)

4 Condensate discharge (DN22)5 Flue gas pipe

Tab15 Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 1155 Diameter 100150 mm Diameter 100150 mm Diameter 100150 mmA (mm) 1340 1562 1562B (mm) 1164 1386 1386C (mm) 1082 1304 1304D (mm) 971 1193 1193

3 Technical specifications

16 Gas 120 ACE 7717202 - v03 - 24062019

Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 115E (mm) 410 632 632F (mm) 87 303 303G (mm) 128 350 350

34 Electrical diagram

341 Electrical diagram of boiler

Fig6

CU-GH-08

X3X4X5

X6

X8

1

2

3

1

2

3

X14

X7

X10

X11

X13

X12

1

2

3

4

5

25 A

Nrsquo

1

2

3

4

YE

GY

BR

GR

1

2

3

4

1

2

3

4

1

2

N L

1

2

1

2

OPTION

PRESSURE

SWITCH

MW-2000850-04

230V

1 2 3 4 5 6 7 8 9 10

24V

12 11

BL OR

10 9 8 7 6

GR BK RE YE BL

5 4 3 2 1

OR BK RE YE BL

Lrsquo

BL

GY

GY

GY

BL BR

GY

BL

BR

GY BL

BR

GY

BR

GR BK RE YE BL OR BK RE YE BL

BK

BL

BR

RE

GR

GR

BK

GR

GY

YE

BR

BL

OR

1

2

3

4

5

1

2

3

RE

BK

GR

BR

BK

BL

GR

1

2

BR

GR

GY

RE BL

BL

BK

BK

BR YE

GR PI

BL

BL

GR

PI

GR

RE

BR

YE

BK

BK

BR

GY

BL

BL

BR

GY

GY

BR

BL BL GY

BR

BL

BR

BK

GYWH

GY

BL

GY

BL

BR

BK

WH

BL

GY

1 12

4

5

2

3

6

7

8

9

10

11

16

17

15

14

13

1 230 V connector connection with control unit2 Mains interference filter3 Earthing of boiler front door4 Return sensor (TR)5 Flow sensor (FTS)6 Flue gas sensor7 Flue gas pressure switch (specific option for the

Netherlands)8 Gas valve unit (GB)9 Igniter (IT)

10 Ionizationignition electrode (E)11 Fan supply12 24 V connector connection with control unit13 Storage information (CSU)14 Pressure sensor (PS)15 Fan control (PWM)16 Light17 Control unit (CU-GH08)BK BlackBL Blue

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 17

BR BrownGY GreenYellowYE YellowOR OrangeGR Green

PI PinkGY GreyRD RedWH White

3 Technical specifications

18 Gas 120 ACE 7717202 - v03 - 24062019

4 Description of the product

41 General description

Gas 120 ACE floor-standing condensing gas boilers have the following characteristics

Low polluting emissionsHigh-efficiency heatingElectronic control panelFlue gas discharge by a forced flue or chimney type connection with bi-flow option

The boilers are perfectly suited to cascade installation

42 Operating principle

421 Gasair setting

The casing fitted to the boiler is also used as an air box Air is drawn in by the fan and gas injected into the Venturi by the fan intake The fan speed is modulated according to the settings the heat demand and the actual temperatures measured by the temperature sensors The gas and air are mixed in the Venturi The gasair ratio command function accurately adjusts the quantities of gas and air required This provides optimum combustion over the entire output range The gasair mixture is sent to the burner located upstream of the heat exchanger

422 Settings and safety devices

ImportantThe settings and safety devices are only operational if the boiler is powered up

Tab16 Description of the safety devicesDevice DescriptionNTC flue gas sensor The control panel blocks the gas supply to the burner in the event of overheatingFlame detector by ionisation The boiler is put into safety lock-down in the event of gas shortage or incomplete cross-

lighting on the burnerHydraulic pressure switch When the pressure switch detects a pressure lower than 08 bar (008 MPa) a warning

message is displayed without stopping the circulating pumpPost-circulating pump After the burner stops depending on the room thermostat setting and if in heating

mode the circulating pump runs for a further 3 minutesFrost protection device When the flow temperature is lower than 5 degC the burner starts up and runs until the

flow temperature reaches 15 degC This device runs under the following conditions

The boiler is switched onThe gas supply is workingThe pressure in the system is higher than 05 bar (005 MPa)

Anti-blocking of the pump If there are no heating or domestic hot water requirements for 24 consecutive hours the pumps start up automatically and run for 10 seconds

Anticipatory start-up of the circulatshying pumps

In heating mode only the appliance can start up the circulating pumps before burner igshynition The duration and activation of anticipatory start-up depends on the installation reshyquirements and the operating temperatures The duration of anticipatory start-up of the circulating pumps therefore varies from a few seconds to several minutes

4 Description of the product

7717202 - v03 - 24062019 Gas 120 ACE 19

43 Main boiler components

1 Control unit2 Flow sensor3 Light4 Ignitionionization electrode5 Non-return valve6 Gas valve7 Heat exchanger (heating circuit)8 Return sensor9 Pressure gauge sensor

10 CU-GH-08 PCB housing11 Siphon12 Flue gas circuit13 Intake silencer14 Venturi15 Flue gas sensor16 Fan17 Automatic air vent18 Flue gas measuring point19 Combustion air measuring point20 Flue gas outletair supply

44 PCBs

441 Description of the CU-GH-08 PCB

This PCB controls the core boiler components sensors actuators and gas valveThis PCB is factory-fitted and fully cabled and does not require any operationThe sensors valves circulating pumps etc are connected at the control unit

45 Standard delivery

The Gas 120 ACE boiler comes in 2 packages including

Tab17 Package contentsPackage ContentPackage 1 A floor-standing gas boiler

A flue system outlet with a measuring point (stored in the boiler)An outdoor temperature sensorA data plateAn installation and service manual

Package 2 A control unitTwo control unit mounting bolts on the boilerA user manual

46 Accessories amp options

A detailed list of accessories and options can be found in our catalogue

Fig7

MW-2000670-02

16

7 13

12

11

10

19

18

20

17

14

15

6

5

2

9

4

3

1

8

4 Description of the product

20 Gas 120 ACE 7717202 - v03 - 24062019

5 Installation

51 Installation regulations

CautionInstallation of the boiler must be done by a qualified professional in accordance with prevailing local and national regulations

CautionA disconnection device must be fitted to the permanent pipes in accordance with the installation rules

CautionRespect the maximum water inlet pressure to ensure correct operation of the appliance referring to the Technical Specifications chapter

52 Choice of the location

Decide on the ideal position for installation bearing in mind any legal directives and the space required by the appliance

Install the boiler on a solid stable structure capable of bearing the weight of the appliance when full of water and fully equippedWhen choosing the position for installation of the boiler bear in mind the positions authorised for the combustion gas discharge outlets and the air intake ventDo not install the boiler near any heat sources

521 Data plate

The data plate is located on the back of the boilerThe data plate provides important information regarding the appliance

Serial numberModelGas categoryCN1CN2etc

Once installation is complete the second data plate supplied in the documentation bag can be affixed to a more visible part of the boilerIf the boiler is equipped with a hydraulic kit (low-loss header or plate heat exchanger) affix the data plate to the side of the boiler

522 Space required - Boiler ventilation

Decide on the ideal position for installation bearing in mind any legal directives and the space required by the appliance

Install the boiler on a solid stable structure capable of bearing the weight of the appliance when full of water and fully equippedWhen choosing the position for installation of the boiler bear in mind the positions authorised for the combustion gas discharge outlets and the air intake ventDo not install the boiler near any heat sources

Fig8

MW-6000735-01

Made in France0085

CN1 17

CN2 7

230 V 50 Hz

B23(P) - B33 - C13(X) - C33(X) - C43(X) - C53 - C63(X) - C83(X) - C93(X)

PMS= 4bar - 04MPa

Pn =

8060 degC

5030 degC

NOx class 6 (Nox lt 56 mgkWh)

Qn =Hi kW

4030 degC

189-1039

196-1070

212-1097

180W

0085CT009

Hs (G20) 217-1189

IP21Imax= 10A

Tmax= 90degC

FR

LT

IT

AT

CZ

PL

II2Esi3BP

II2H3BP

II2H3BP

II2H3BP

II2H3P

II2H3BP

II2H3BP

II2ELw3BP

G20-20mbar G25-25mbar G30G31-303750mbar

G20-20mbar G30G31 - 30mbar

G20-20mbar G30G31 - 303750 mbar

G20-20mbar G30G31 - 3037mbar

G20-20mbar G31 - 30mbar

G20-20mbar G30G31 - 50mbar

G20-20mbar G30G31-303750mbar

G20-20mbar G27-20mbar G3031-37mbar

kW

Art Nr SN A0000YYWW000

kW

kW

kW

kW

kW

ESGR PT

LU RO EE

YY-WW

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 21

Keep the boiler accessible at all timesPlace the boiler on a base to make it easier to clean the roomThe boiler can be located along a partition on one of its sides provided there is a 500 mm space on the opposite sideAllow enough space around the boiler to facilitate accessibility and maintenance The minimum recommended dimensions are shown in the illustrationMake sure there is a connection to the water drainage system close to the boiler to discharge any condensates

ImportantTo fit the boiler position the pallet with the package 25 m in front of the desired location for the installation This distance is required to allow the boiler to be removed from its pallet

Tab18Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 115

A (mm) 500 500 500B (mm) 1082 1304 1304

To allow the intake of combustion air sufficient ventilation must be provided in the boiler room the cross section and position of which must satisfy the regulations in force

Great Britain BS 5440 Part 1 and Part 2

For boilers with a nominal output of more than 70 kW Upper and lower air vents comshypulsory

BS 6644 and IGEMUP-10

Caution

Avoid any low points in the flue gas and condensate discharge circuit in order to prevent any accumulation of condensatesDo not block the air inlets in the room or the combustion product evacuation or condensation water flow pipes (even partially)

If the boiler is installed in closed premises respect the minimum dimensions given in the diagram below Also allow for openings to obviate the following hazards

Accumulation of gasOverheating of the premisesGreat Britain Minimum cross section of openings see BS 5440 Part 1 and Part 2 and BS 6644

523 Ventilation

To allow the intake of combustion air sufficient ventilation must be provided in the boiler room for which the cross section and position must satisfy the regulations in force in the country in which the boiler is installed

Great Britain BS 5440 Part 1 and Part 2

For boilers with a nominal output of more than 70 kW Upper and lower air vents comshypulsory

BS 6644 and IGEMUP-10

Fig9

MW-2000679-03

500

B

1100

AS1

S2

260

580

350

600

500

5 Installation

22 Gas 120 ACE 7717202 - v03 - 24062019

If the boiler is installed in closed premises respect the minimum dimensions given in the diagram below Also allow for openings to obviate the following hazards

Accumulation of gasOverheating of the premisesGreat Britain Minimum cross section of openings see BS 5440 Part 1 and Part 2 and BS 6644

524 Fitting the outdoor sensor

Plugs diameter 4 mmdrill diameter 6 mm

1 Choose a recommended location for the outdoor sensor2 Put the 2 plugs in place delivered with the sensor3 Secure the sensor using the screws provided (diameter 4 mm)4 Connect the cable to the outdoor temperature sensor

Recommended positions

Place the outside sensor in a position that covers the following characteristics

On a faccedilade of the area to be heated on the north if possibleHalf way up the wall of the area to be heatedUnder the influence of changes in the weatherProtected from direct sunlightEasy to access

Fig11

MW-8800N001-3

2

1

2

11

2

H

12 H (min 25 m)

12 H (min 25 m)

12 Z

H

Z

1 Optimum location2 Possible position

H Inhabited height controlled by the sensorZ Inhabited area controlled by the sensor

Positions to be avoided

Avoid placing the outside sensor in a position with the following characteristics

Masked by part of the building (balcony roof etc)Close to a disruptive heat source (sun chimney ventilation grid etc)

Fig10

MW-8800N003-6

23

4

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 23

Fig12

MW-3000014-2

53 Transport

Transport the boiler pallet with a manual or electric pallet truck

54 Unpacking and preparing the boiler

Caution

Wear gloves to handle the boilerTransport the boiler pallet with a manual or electric pallet truckUse carrying bars (not provided) to move the boiler

ImportantTo fit the boiler position the pallet with the package 25 m in front of the desired location for the installation This distance is required to allow the boiler to be removed from its pallet

1 Cut the packaging2 Remove the packaging from the boiler but leave the boiler on the

shipping pallet

ImportantThe documentation bag (user manual + accessories) is contained in the protective block

Fig13

MW-6000736-01

Manual

11

12

5 Installation

24 Gas 120 ACE 7717202 - v03 - 24062019

3 Using a long tool unlock and remove the boilers front door Disconnect the earth wire

4 Remove the mounting bolts from the unloading ramps and the boiler (4 bolts at the rear and 4 bolts at the front)

5 Pull out the unloading ramps and turn them over6 Align the ramps with the rear castor wheels on the boiler

Fig14

MW-6000761-01

3

3

Fig15

MW-6000737-01

4

4

Fig16

MW-6000738-01

5

5

6

6

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 25

7 Lock the ramps correctly onto the pallet8 Screw the unloading ramps onto the pallet9 Fold down the ends of the ramp so that they rest on the ground

10 Tilt the boiler backwards until it is resting on the castor wheels then remove it from the pallet

11 Recycle the pallet

Fig17

MW-6000770-01

9

9

8

7

Fig18

MW-6000739-02

600

350

11

10

550

5 Installation

26 Gas 120 ACE 7717202 - v03 - 24062019

12 Level the boiler using the adjustable feet(1) Factory setting 30 mm adjustment range 20 to 40 mm

CautionThe rear castor wheels must no longer be in contact with the ground

55 Hydraulic connections

551 Water treatment

In many cases the boiler and the heating system can be filled with mains water without treating the water

CautionDo not add any chemical products to the heating water without first consulting a water treatment specialist For example antifreeze water softeners products to increase or reduce the pH value chemical additives andor inhibitors These may cause faults in the boiler and damage the heat exchanger

Important

Flush the installation with at least 3 times the volume of water contained in the heating systemFlush the DHW circuit with at least 20 times its volume of water

The water in the installation must comply with following specifications

Tab19 Installation water specifications Initial commissioning Concentration (top up)Degree of acidity (untreated water) pH 65 - 85 65 - 85

Degree of acidity (treated washyter) pH 70 - 90 70 - 90

Conductivity at 25degC μScm le 500 le 500Chlorides mglitre le 50 le 50Other components mglitre lt 1 lt 1

Total water hardnessdegf 5 - 35 le 15degdH 28 - 200 le 85mmollitre(1) 05 - 35 lt 15

(1) Flow temperature less than 90degC mdash Maximum hardness 150 mmoll

Fig19

MW-6000773-01

(1)

12

12

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 27

ImportantIf water treatment proves necessary Remeha recommends the following manufacturers

CillitClimalifeFernoxPermoSentinel

552 Flushing new installations and installations less than 6 months old

Before filling the heating installation it is essential to remove any debris (copper caulking soldering flux) from the installation

1 Clean the installation with a powerful universal cleaner2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

553 Flushing an existing installation

Before filling the heating installation it is essential to remove any sludge deposits which have accumulated in the heating circuit over the years

1 Remove any sludge from the installation2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

554 Connecting the heating circuit

ImportantAbide by the information shown in the hydraulic diagrams

The pipes are not provided

Caution

The heating pipe must be mounted in accordance with the provisions applicableIf installing stop valves position the filldrain valve and the expansion vessel between the stop valves and the boilerAlways install a safety valve calibrated to a maximum of 4 bar on the heating circuit The safety valve can be connected to a venting pot The safety valve must not be used to drain the heating circuitIt is recommended to install a sludge collector on all installations

SeeIf fitting with a hydraulic kit (low-loss header or plate heat exchanger) refer to the kit manual

555 Connecting the condensate discharge pipe

Use a neutralisation station to achieve a pH value of more than 65 (in accordance with prevailing regulations)Discharge the condensates directly into the mains drainage system via a siphon In view of the acidity level (pH 25 to 3) only condensate discharge pipes made from compatible plastic should be used

5 Installation

28 Gas 120 ACE 7717202 - v03 - 24062019

The condensate discharge pipe is located at the rear of the boiler

Do not block the condensate discharge pipeTilt the discharge pipe by at least 30 mm per metre and make sure there are no low points that could cause the accumulation of water or deposits Maximum horizontal length 5 metresDo not drain condensation water into a roof gutterConnect the condensate discharge pipe in accordance with prevailing standardsIt is preferable to use the condensate neutralisers recommended by the manufacturer of the boiler

1 Connect a plastic hose to the condensate discharge outlet (DN 22)2 Insert the other end of the hose into a waste water discharge outlet

556 Filling the siphon

DangerIf operating with the siphon empty combustion products will escape into the premises in which the boiler is installed

1 Pour water into the flue gas pipe (central pipe) until it flows out of the condensate discharge pipe

56 Gas connection

Danger

Close the main gas valve before starting work on the gas pipesThe diameters of the pipes must be defined in accordance with the standards in force in your countryConnect the gas pipe in accordance with prevailing standards and regulationsEnsure that there is no dust in the gas pipe

The gas pipes are not providedIn old gas networks we recommend fitting a gas filter with a low pressure drop upstream of this point

1 Clean the gas supply pipe2 Remove the anti-dust plug located on the boilers gas inlet3 Mount a gas stop valve (not provided) on the boilers gas inlet4 Connect the gas inlet pipe to the gas stop valve

Fig20

MW-2000825-01

pH gt 65

Oslash32A

Fig21

MW-6000742-02

1

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 29

5 Close the gas supply valve before testing the pressure on the gas supply pipe to avoid damage caused by excessive pressure on the gas regulator Decompress before reopening the valve

561 Gas supply

Before mounting check that the gas meter has sufficient capacity (in m3h) To do this you should bear in mind the consumption of all appliances If the capacity of the gas meter is too low inform the gas supply companyThe boilers are preset to run on G20 gas (gas H) and can be adapted to run with the following gases

G31 (gas P)G3031 (gas BP)

ImportantTo use a different type of gas contact an approved assistance service

57 Air supplyflue gas outlet connections

571 Classification

The discharge and intake pipes must be certified for the appropriate configuration and must meet the requirements of the prevailing installation standards in the country

Tab20 Configurations and recommendations for the flue systemConfiguration Principle DescriptionB23B23P

AD-3001055-01

Connection to a chimney using a CE connection kit (single pipe in a flue comshybustion air taken from the boiler room)Follow the connection instructions and adhere to the recommended maximum pipe lengthsComply with the applicable regulations governing ventilation and cross-secshytions for room aeration vents

B33

MW-5000925-1

Room-ventilated version

Without down-draught diverterJoint flue gas discharge via the roof with guaranteed natural draft (at all times underpressure in the joint discharge duct)Flue gas discharge rinsed with air air from the installation area (special conshystruction)The IP rating of the boiler is lowered to IP20

C13C13X

AD-3001056-01

Airflue gas connection using concentric pipes to a horizontal terminal (so-called forced flue) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

5 Installation

30 Gas 120 ACE 7717202 - v03 - 24062019

Configuration Principle DescriptionC33C33X

AD-3001057-01

Airflue gas connection using concentric pipes to a vertical terminal (roof outshylet) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

C43C43X

MW-2000822-01

Airflue gas connection via concentric pipes to a common pipe supplying severshyal heating applicationsThe common pipe has a roof connection to a vertical terminal that draws in the air required for combustion and discharges the combustion productsUse of CE-certified system

C53

AD-3001058-02

Airflue gas connection via separate pipes lead to two separate terminals One draws in the air required for combustion and the other discharges the combusshytion productsThe outlets may be in different pressure zonesDo not install the air supply and discharge on opposing surfacesUse of CE-certified system

C63C63X

The installer is responsible for installing a CE-certified discharge system that complies with the manufacturers recommendations (temperature flow pressure etc)

The maximum pressure drop in the pipes ΔP must not exceed the values given in the table below The pipes must be certified for this type of use and for a temperature of more than 100 degC The terminal part of the flue gas pipe must be certified as complying with the EN 1856-1 StandardIf installing discharge and intake pipes not supplied by Remeha these must be certified for the intended type of use and their maximum pressure drop must be compliant

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 31

Configuration Principle DescriptionC83C83X

MW-2000823-01

Flue gas connection to a collective flue for sealed boilers The air supply is inshydividual via a terminal coming from outside the buildingA concentric pipe can be used to both supply the boiler with combustion air and connect to the collective flue gas discharge systemThe chimney or flue gas pipe must be suitable for such use and the system CE certified

C93C93X

AD-3001059-01

Airflue gas connection via concentric pipes in an existing chimney The air supshyply in the chimney may be installed via the existing channel or via tubing Flue gas discharge and air intake are via a vertical terminal at the top of the chimney

The air intake and discharge must be close enough to be in the same pressure zoneThe minimum cross-sections are shown in the table belowThe flue system must be suitable for the intended use and the system CE certishyfied

Tab21 Minimum dimensions of the duct or pipe C93 C93X

Version (D) Without air supply With air supplyRigid 80 mm Oslash 130 mm 130 x 130 mm Oslash 140 mm 130 x 130 mmRigid 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmRigid 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmFlexible 80 mm Oslash 130 mm 130 x 130 mm Oslash 145 mm 130 x 130 mmFlexible 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmFlexible 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmConcentric 80125 mm Oslash 145 mm 145 x 145 mm Oslash 145 mm 145 x 145 mmConcentric 100150 mm Oslash 170 mm 170 x 170 mm Oslash 170 mm 170 x 170 mmConcentric 150200 mm Oslash 270 mm 270 x 270 mm - -

ImportantThe duct must comply with the air density requirements of the local regulations

Important

Only original components are authorised for connection to the boiler and for the terminalThe clear section must comply with the standardThe chimney must be swept before installing the discharge flue

CautionEnsure that the flue gas discharge pipes are securely attached to the wall with suitable retaining flanges to prevent any damage and guarantee the tightness of every gasket in the circuit

CautionThe minimum gradient of the condensates discharge pipe from the boiler to the waste water discharge must be 1 cm per linear metre

Fig22 Minimum dimensions of the duct or pipe C93 C93X

AD-3000330-03

D

Oslash

D

5 Installation

32 Gas 120 ACE 7717202 - v03 - 24062019

572 Lengths of the airflue gas pipes

The maximum lengths (Lmax) given in the table are valid for pipes in which the horizontal sections do not exceed one metre in total For each additional metre of horizontal pipe a multiplication coefficient of 12 must be applied when calculating the total length L The total length L is calculated by adding the lengths of the straight airflue gas pipes and the equivalent lengths of the other componentsAlways ensure that L is less than Lmax

ImportantFor the list of flue gas system accessories and the equivalent lengths refer to the current price list

Tab22 Lengths of the airflue gas pipes in metresConfigurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 100 mm 26 24 19

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 110 mm 40 40 40

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 110 mm 295 24 175

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 80125 mm - - -

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 100150 mm 9 8 59

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 80125 mm - - -

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 100150 mm 115 10 94

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 80125 mm over 2x80 mm

- - -

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 100150 mm over 2x100 mm

23 175 Air 11Flue gases 5

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm110 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 110150 mm110 mm

16 132 10

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 33

Configurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 110150 mm110 mm

165 135 94

Tab23 PPS pipe reduction for each element used

Diameter 80 mmSingle

80125 mmConcentric

100 mmSingle

100150 mmConcentric

45deg elbow 12 m 10 m 11 m 10 m87deg elbow 19 m 15 m 20 m 37 mStraight inspection tube 03 m 06 m - 10 m87deg inspection elbow 19 m 20 m 48 m -Inspection T 42 m 27 m 56 m 25 mInspection tube for flexible pipe 03 m - 05 m -

573 Dimensions of flue gas outlet pipe

WarningThe pipes connected to the flue gas adapter must satisfy the following dimension requirements

d1 External dimensions of flue gas outlet pipe

Tab24 Dimensions of pipe d1 (min-max)80 mm 793 - 803 mm100 mm 993 - 1003 mm150 mm 149 - 151 mm

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipe

Tab25 Dimensions of pipe d1 (min-max) D1 (min-max)8080 mm 793 - 803 mm 793 - 803 mm100100 mm 993 - 1003 mm 993 - 1003 mm110110 mm 1093 - 1103 mm 1093 - 1103 mm150150 mm 149 - 151 mm 149 - 151 mm

Fig23 Dimensions of open connection

AD-3001094-01

oslashd1

Fig24 Dimensions of parallel connection

AD-3000963-01

oslashd1 oslashD1

5 Installation

34 Gas 120 ACE 7717202 - v03 - 24062019

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipeL1 Length difference between flue gas outlet pipe and air supply pipe

Tab26 Dimensions of pipe d1 (min-max) D1 (min-max) L1

(1) (min-max)80125 mm 793 - 803 mm 124 - 1255 mm 0 - 15 mm100150 mm 993 - 1003 mm 149 - 151 mm 0 - 15 mm

(1) Shorten the inner pipe if the length difference is too great

574 Connection to the flue gas pipe

At delivery the flue gas outletair supply is fixed inside the boiler

1 Using a long tool unlock and remove the boilers front door2 Remove the boiler outlet

3 Two options for connection to the flue gas pipe

Option Description3a Connection to a vertical flue gas pipe Position the flue gas

outletair supply directly at the boiler outlet3b Connection to a horizontal flue gas pipe Insert an outlet elshy

bow ( not supplied) before the flue gas outletair supply

ImportantLubricate the gaskets on the flue system during assembly

Fig25 Dimensions of concentric connection

AD-3000962-01

oslashd1

L1

oslashD1

Fig26

MW-2000867-02

1

2

1

Fig27

3a 3b

MW-2000868-01

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 35

Fastening the coaxial pipes Fasten the intake pipes with two galvanised Oslash 42 mm screws with a maximum length of 16 mm

CautionBefore fixing the screws make sure that at least 45 cm of pipe is inserted in the gasket of the other pipe

WarningGuarantee a minimum pipe slope towards the boiler of at least 5 cm per metre

Fig28 Fastening the coaxial pipes using screws

BO-0000030

16 mm

5 Installation

36 Gas 120 ACE 7717202 - v03 - 24062019

6 Operation

61 Settings

To configure the installation and use the boiler please refer to the control unit manual

6 Operation

7717202 - v03 - 24062019 Gas 120 ACE 37

7 Maintenance

71 General

We recommend having the boiler inspected and serviced at regular intervals

CautionDo not neglect to service the boiler Contact a qualified professional or take out a maintenance contract for the obligatory annual servicing of the boilerFailure to service the appliance voids the warranty

Danger of electric shockBefore service work is started the boiler has to be de-energised and secured from accidentally being switched back on

CautionHave an inspection carried out and the flues swept at least once a year or more depending on the regulations in force in your country

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

CautionAfter maintenance or repair work check the entire heating system to ensure that there are no leaks

CautionOnly genuine spare parts may be used

72 Specific maintenance operations

721 Cleaning the siphon

1 Remove the flue gas outlet discharge pipe

2 Remove the condensate discharge pipe 3 Remove the screw from the siphon

Fig29

1

MW-2000903-01

Fig30

2

3

MW-2000904-01

7 Maintenance

38 Gas 120 ACE 7717202 - v03 - 24062019

4 Pull the siphon downwards to disengage it and pivot it to release it

5 Flush the siphon 6 Drain the siphon

7 Fill the siphon with clean water up to the mark 8 Lubricate the siphon gasket9 Re-engage the siphon and refit the screw

10 Refit the two pipes

722 Checking the ionisation current

1 Check the ionisation current at full load and at low loadThe value is stable after 1 minute

2 Clean or replace the ionisationignition electrode if the value is lower than 4 microA

Fig31

4

90deg

MW-2000905-01

Fig32

MW-2000843-01

Fig33

MW-2000844-01

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 39

723 Replace the ionizationignition electrode

The ionizationignition electrode must be replaced if

The ionization current is lt 4 microAThe electrode is damaged or worn

1 Remove the plug of the electrode from the igniter

ImportantThe ignition cable is fixed to the electrode and therefore may not be removed

2 Remove the two screws3 Remove the entire component4 Fit the new ionizationignition electrode with a new seal5 Reassemble the unit in the reverse order to disassembly

724 Servicing the forced flue connection pipes

1 Open the inspection hatches or remove the pipes2 Check that the air supply and discharge pipes are not blocked

If necessary clean the discharge pipe3 Check the tightness of the flue gas system4 Replace the tightness gaskets and if necessary any sections of pipe

until tightness is perfect

725 Checking the burner and cleaning the heat exchanger

1 Remove the air inlet flue on the venturi2 Loosen the gland on the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

Fig34

AD-0000088-01

4

1

2

3

Fig35 Removing the fan

AD-3001178-01

1

3

4

2

5

7 Maintenance

40 Gas 120 ACE 7717202 - v03 - 24062019

6 Remove the front plate from the heat exchanger7 Carefully lift the front plate including the burner and fan away from

the heat exchanger

8 Use a vacuum cleaner fitted with a special endpiece (accessory) to clean the top part of the heat exchanger (combustion chamber)

9 Vacuum again without the top brush on the end piece10 Clean the lower section of the heat exchanger with the special

cleaning blade (accessory)11 Check (eg using a mirror) whether any visible contamination has

been left behind If it has remove it with the vacuum cleaner12 Check that the burner cover of the dismantled burner is free from

cracks andor damage If not replace the burnerServicing the burner is usually not necessary it is self-cleaning Use compressed air to carefully blow away any dust

13 Reassemble the unit in reverse order

CautionRemember to reconnect the fan plugCheck that the gasket is correctly positioned between the mixing elbow and the heat exchanger (the gasket must lie absolutely flat in the appropriate groove to ensure that no gas can leak)Tighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the front plate nuts with a torque wrench to the firmness of 10 Nm

14 Open the gas supply and switch the power supply to the boiler back on

Fig36 Removing the front plate fan and burner

AD-3001179-01

6

7

Fig37 Cleaning the heat exchanger

AD-3001180-01

10

8 9

12

11

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 41

726 Checking the non-return valve

1 Remove the air inlet pipe from the venturi2 Unscrew the gland of the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

6 Dismantle the fan7 Remove the fan together with the gas valve unit8 Inspect the non-return valve and replace it in the event of a defect or

damage or if the maintenance kit contains a non-return valve9 Reassemble in the reverse order

CautionRemember to reconnect the fan plugTighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the two fan nuts with a torque wrench to the firmness of 38 Nm

Fig38 Disconnecting the fan

AD-3001178-01

1

3

4

2

5

Fig39 Checking the non-return valve

AD-3001181-01

2x

68

7

9

7 Maintenance

42 Gas 120 ACE 7717202 - v03 - 24062019

8 Decommissioning

81 Decommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

To switch off the boiler temporarily or permanently proceed as follows

1 Switch the boiler off2 Cut the electrical power to the boiler3 Close the gas valve on the boiler4 Drain the central heating system or ensure frost protection5 Close the door of the boiler to prevent air circulating inside it6 Remove the pipe connecting the boiler to the chimney and close the

nozzle with a plug

82 Recommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

Should it prove necessary to carry out the recommissioning of the boiler proceed as follows

1 Re-establish electrical power to the boiler2 Fit and check the flue gas pipe3 Fill the siphon with water4 Fill the central heating system5 Open the boiler gas valve6 Start up the boiler

8 Decommissioning

7717202 - v03 - 24062019 Gas 120 ACE 43

9 Disposal and recyclingCautionOnly qualified professionals are permitted to remove and dispose of the boiler in accordance with local and national regulations

If you need to remove the boiler proceed as follows

1 Switch off the boiler2 Cut the power supply to the boiler3 Close the main gas valve4 Close the water mains5 Close the gas valve on the boiler6 Drain the installation7 Remove the airflue gas pipes8 Disconnect all pipes9 Dismantle the boiler

Fig40

MW-3000179-03

9 Disposal and recycling

44 Gas 120 ACE 7717202 - v03 - 24062019

10 Environmental

101 Energy savings

Energy-saving advice

Do not block ventilation outletsDo not cover the radiators Do not hang curtains in front of the radiatorsInstall reflective panels behind the radiators to prevent heat lossesInsulate the pipes in rooms that are not heated (cellars and lofts)Close the radiators in rooms not in useDo not run hot (or cold) water pointlesslyInstall an energy-saving shower head which can save up to 40 energyTake showers rather than baths A bath consumes twice as much water and energy

102 Room thermostat and settings

Various models of room thermostat are available The type of thermostat used and the parameter selected impact total energy consumption

A modulating regulator which may be combined with thermostatic valves is eco-friendly in terms of energy and offers an excellent level of comfort This combination allows you to set the temperature separately for each room However do not install thermostatic radiator valves in the room in which the room thermostat is locatedComplete opening and closing of the thermostatic radiator valves causes undesirable variations in temperature Therefore these must be openedclosed progressivelySet the room thermostat to a temperature of approximately 20degC to reduce heating costs and energy consumptionLower the thermostat setting to approximately 16degC at night or when you are not at home This reduces heating costs and energy consumptionLower the thermostat setting well before airing the roomsSet the water temperature to a lower level in summer than in winter (eg 60degC and 80degC respectively) when an ONOFF thermostatis usedWhen clock thermostats and programmable thermostats are to be set do not forget to take any holidays and days when no one is at home into account

10 Environmental

7717202 - v03 - 24062019 Gas 120 ACE 45

11 Warranty

111 General

We would like to thank you for buying one of our appliances and for your trust in our productIn order to ensure continued safe and efficient operation we recommend that the product is regularly inspected and maintainedYour installer and our service department can assist with this

112 Terms of warranty

The following provisions do not affect the application in favour of the buyer of the legal provisions with regard to hidden defects that are applicable in the buyers countryThis appliance comes with a warranty that covers all manufacturing faults the warranty period will commence on the date of purchase stated on the installers invoiceThe warranty period is stated in our price listAs a manufacturer we can by no means be held liable if the appliance is used incorrectly is poorly maintained or not maintained at all or is not installed correctly (it is your responsibility to ensure that installation is carried out by a qualified installer)In particular we cannot be held liable for material damage intangible losses or physical injury resulting from an installation that does not comply with

Legal or regulatory requirements or provisions laid down by the local authoritiesNational or local regulations and special provisions relating to the installationOur manuals and installation instructions in particular in terms of regular maintenance of the appliances

Our warranty is limited to the replacement or repair of the parts found to be defective by our technical services team excluding labour transfer and transport costsOur warranty does not cover replacement or repair costs for parts that may become defective due to normal wear incorrect usage the intervention of unqualified third parties inadequate or insufficient supervision or maintenance a mains supply that is not appropriate or the use of unsuitable or poor quality fuelSmaller parts such as motors pumps electrical valves etc are guaranteed only if these parts have never been dismantledThe rights established in European Directive 9944EEC implemented by legal decree No 24 of 2 February 2002 and published in Official Journal No 57 of 8 March 2002 remain in force

11 Warranty

46 Gas 120 ACE 7717202 - v03 - 24062019

12 Spare parts

121 General

If inspection or maintenance work bring to light the need to replace a component in the boilerProvide the reference number given in the spare parts list when ordering a spare part

CautionOnly genuine spare parts may be used

122 Spare parts lists

1221 Exchanger

Fig41

MW-6000743-01

811x

7

7

4

2

16

3

10

119

65

1

13

12

18

14

19

15

18

17

Tab27

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

1 7699615 Complete exchanger x 1 7699614 Complete exchanger x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 47

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

2 S101564 Exchanger front plate x x x3 S54731 Exchanger inspection hatch insulation x x x4 S57241 Exchanger inspection hatch gasket x x x5 S100052 M4x10 self-locking screw (x20) x x x6 S54754 FURQ65 burner x 6 S57477 FURQ85 burner x x7 7623837 Set of 10 k NTC sensors x x x8 S54755 M6 nut (x20) x x x9 7659755 M4x10 screw (x10) x x x10 S53489 Electrode gasket (x10) x x x11 7692359 Ignition electrode x x x12 7631936 Flue gas flow pipe diameter 100 mm x x x13 7624643 NTC 2x20 k flue gas sensor with gasket x x x14 7624619 Ignition transformer x x x15 S56987 ZP M6x16 screw (x10) x x x16 7616253 Valve with support x x x17 7680596 Exchanger bracket x 17 7673616 Exchanger bracket x x18 7701752 Gasket diameter 100 mm (x5) x x x19 7632708 Earth electric clip (x2) x x x

1222 Gas circuit

Fig42

MW-6000744-01

3

2

5

6

9

4

8

10

7

12

11

1

14

13

13

12 Spare parts

48 Gas 120 ACE 7717202 - v03 - 24062019

Tab28Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 S101543 Silencer x 1 S101520 Silencer x 1 S101578 Silencer x2 S54777 Venturi gasket (x5) x 2 S59215 Gas valve-venturi gasket (x5) x 2 S101593 Gaskets (kit) x3 S101726 Fan RG 1481200-3633 x x 3 S100036 Fan RG 148 1200-3633-010202 x4 S101596 Gas valve VK4115v1386 x 4 S101597 Gas valve VK4115vb1012 x 4 S101510 Gas valve GB-ND 057 XP x5 S54766 Venturi x 5 S57488 Venturi x 5 S101595 Venturi VMS 45900450-010 x6 S59215 Gas valve-venturi gasket (x5) x x 7 S57827 Gas valve unit flange x8 S57828 268x22x25 O-ring (x5) x9 S101631 Diaphragm x10 7616249 Flue gas sensor cap (5x) x x x11 S56155 238x177x2 gasket (x20) x x x12 95760050 C HC M4-12 88 ZN3 screw x x x13 S48512 M5-10 screw (x10) x x x14 S101590 Silencer retaining clip x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 49

1223 Hydraulic circuit

Fig43

MW-6000745-01

1

14

6

9

11

8

12

5

37

9

10

2

4

13

Tab29Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7680598 Complete flow pipe x 1 7670807 Complete flow pipe x x2 7672557 Complete return pipe x x x3 7674076 Complete gas pipe x 3 7680434 Complete gas pipe x 3 7670720 Complete gas pipe x4 7698560 HUBA G38 pressure gauge x x x5 94994712 PVC pipe diameter 16x12 x x x6 7699357 Water deflector diameter 100 mm x x x7 94902073 Drain valve 12 x x x8 94918138 Air vent x x x9 95013064 44x32x2 mm green gasket x x x10 95013060 24x17x2 mm green gasket x x 10 95013062 30x21x12 mm green gasket x11 7692329 Condensate hose x x x13 7706103 Assembled siphon height 160 mm x 13 7706038 Assembled siphon height 250 mm x x14 7103731 Condensate drain pan gasket x x x

12 Spare parts

50 Gas 120 ACE 7717202 - v03 - 24062019

1224 Boiler body

Fig44

MW-6000746-01

2

2

1

6

3

34

5

4

Tab30Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7686377 Assembled frame x 1 7686139 Assembled frame x x2 7679958 117x34 handle diameter 65 mm x x x3 7676037 Wheel x x x4 7688301 Frame lateral gasket x 4 7688008 Frame lateral gasket x x5 7688353 Front panel gasket x 5 7688007 Front panel gasket x x6 7693874 R4-05 front panel lock x x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 51

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

E toimistoestsystemsfi

Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 2: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

Dear CustomerThank you very much for buying this appliancePlease read through the manual carefully before using the product and keep it in a safe place for later reference In order to ensure continued safe and efficient operation we recommend that the product is serviced regularly Our service and customer service organisation can assist with thisWe hope you enjoy years of problem-free operation with the product

Contents1 Safety 5

11 General safety instructions 512 Recommendations 713 Liabilities 8

131 Manufacturers liability 8132 Installers liability 9133 Users liability 9

2 Symbols used 1021 Symbols used in the manual 1022 Symbols used on the appliance 10

3 Technical specifications 1131 Homologations 11

311 Directives 11312 EC Declaration of Conformity 11313 Gas categories 11314 Certifications 11315 Factory test 12

32 Technical data 12321 ErP technical parameters 14322 Circulating pump (not provided) 14323 Sensor specifications 15

33 Dimensions and connections 1634 Electrical diagram 17

341 Electrical diagram of boiler 17

4 Description of the product 1941 General description 1942 Operating principle 19

421 Gasair setting 19422 Settings and safety devices 19

43 Main boiler components 2044 PCBs 20

441 Description of the CU-GH-08 PCB 2045 Standard delivery 2046 Accessories amp options 20

5 Installation 2151 Installation regulations 2152 Choice of the location 21

521 Data plate 21522 Space required - Boiler ventilation 21523 Ventilation 22524 Fitting the outdoor sensor 23

53 Transport 2454 Unpacking and preparing the boiler 2455 Hydraulic connections 27

551 Water treatment 27552 Flushing new installations and installations less than 6 months old 28553 Flushing an existing installation 28554 Connecting the heating circuit 28555 Connecting the condensate discharge pipe 28556 Filling the siphon 29

56 Gas connection 29561 Gas supply 30

57 Air supplyflue gas outlet connections 30571 Classification 30572 Lengths of the airflue gas pipes 33573 Dimensions of flue gas outlet pipe 34574 Connection to the flue gas pipe 35

6 Operation 3761 Settings 37

Contents

7717202 - v03 - 24062019 Gas 120 ACE 3

7 Maintenance 3871 General 3872 Specific maintenance operations 38

721 Cleaning the siphon 38722 Checking the ionisation current 39723 Replace the ionizationignition electrode 40724 Servicing the forced flue connection pipes 40725 Checking the burner and cleaning the heat exchanger 40726 Checking the non-return valve 42

8 Decommissioning 4381 Decommissioning procedure 4382 Recommissioning procedure 43

9 Disposal and recycling 44

10 Environmental 45101 Energy savings 45102 Room thermostat and settings 45

11 Warranty 46111 General 46112 Terms of warranty 46

12 Spare parts 47121 General 47122 Spare parts lists 47

1221 Exchanger 471222 Gas circuit 481223 Hydraulic circuit 501224 Boiler body 511225 Casing 521226 Boiler PCB housing 53

13 Appendix 54131 Package fiche - Boilers 54132 Product fiche - Temperature Controls 55133 Product fiche 55

Contents

4 Gas 120 ACE 7717202 - v03 - 24062019

1 Safety

11 General safety instructions

For the installer and end user

DangerThis appliance can be used by children aged from 8 years and above and persons with reduced physical sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved Children shall not play with the appliance Cleaning and user maintenance shall not be made by children without supervision

CautionDo not touch the flue gas pipes Depending on the boiler settings the temperature of the flue gas pipes can rise to over 60degC

CautionDo not touch radiators for long periods Depending on the boiler settings the temperature of the radiators may exceed 60degC

CautionTake precautions with the domestic hot water Depending on the boiler settings the domestic hot water temperature may exceed 65degC

Danger of electric shockBefore any work switch off the mains supply to the boiler

For the installer

1 Safety

7717202 - v03 - 24062019 Gas 120 ACE 5

DangerIf you smell gas1 Do not use a naked flame do not smoke do

not operate electrical contacts or switches (doorbell light motor lift etc)

2 Shut off the gas supply3 Open the windows4 Locate the probable leak and seal it

immediately5 If the leak is before the gas meter contact the

gas supplier

DangerIf you smell flue gases1 Switch off the appliance2 Open the windows3 Locate the probable source of the flue gas

leak and fix it immediately

WarningThe condensation drain must not be changed or sealed If a condensate neutralisation system is used the system must be cleaned regularly in accordance with the instructions provided by the manufacturer

For the end user

DangerIf you smell gas1 Do not use a naked flame do not smoke do

not operate electrical contacts or switches (doorbell light motor lift etc)

2 Shut off the gas supply3 Open the windows4 Evacuate the property5 Contact a qualified professional

DangerIf you smell flue gases1 Switch off the appliance2 Open the windows3 Evacuate the property4 Contact a qualified professional

1 Safety

6 Gas 120 ACE 7717202 - v03 - 24062019

12 Recommendations

DangerFor safety reasons we recommend fitting smoke and CO2 detectors and alarms at suitable places in your home

CautionThe boiler must always be connected to the protective earthingEarthing must comply with the prevailing installation standardsEarth the appliance before making any electrical connections

For the type and calibre of the protective equipment refer to the chapter Electrical Connections in the Installation and Service Manual

CautionIf a power cord comes with the appliance and it turns out to be damaged it must be replaced by the manufacturer its after sales service or persons with similar qualifications in order to obviate any danger

CautionA disconnection device must be fitted to the permanent pipes in accordance with the installation rules

CautionPower the appliance via a circuit that includes an omni-polar switch with contact opening distance of 3 mm or more

CautionDrain the boiler and heating system if the home is left empty for a long period of time and there is a chance of frost

CautionRemove the boiler casing only to perform maintenance and repair work Always put the casing back in place after such work

CautionTo enjoy warranty cover no modifications must be made to the boiler

1 Safety

7717202 - v03 - 24062019 Gas 120 ACE 7

CautionThe frost protection function only protects the boiler not the heating system

CautionThe frost protection function does not work if the boiler is powered off

CautionThe appliance should be switched to Summer or Frost Protection mode rather than be switched off in order to guarantee the following functions

Avoidance of pumps blockingFrost Protection

ImportantRespect the minimum and maximum water inlet pressure to ensure correct operation of the boiler refer to the chapter Technical Specifications

ImportantOnly qualified professionals are permitted to install the boiler in accordance with prevailing local and national regulations

ImportantNever remove or cover labels and data plates affixed to the boilerLabels and data plates must be legible throughout the entire lifetime of the boiler Immediately replace damaged or illegible instructions and warning labels

ImportantKeep this document close to the place where the appliance is installed

13 Liabilities

131 Manufacturers liability

Our products are manufactured in compliance with the requirements of the various Directives applicable They are therefore delivered with the marking and any documents necessary In the interests of the quality of our products we strive constantly to improve them We therefore reserve the right to modify the specifications given in this documentOur liability as manufacturer may not be invoked in the following cases

1 Safety

8 Gas 120 ACE 7717202 - v03 - 24062019

Failure to abide by the instructions on installing and maintaining the applianceFailure to abide by the instructions on using the applianceFaulty or insufficient maintenance of the appliance

132 Installers liability

The installer is responsible for the installation and initial commissioning of the appliance The installer must observe the following instructions

Read and follow the instructions given in the manuals provided with the applianceInstall the appliance in compliance with prevailing legislation and standardsCarry out initial commissioning and any checks necessaryExplain the installation to the userIf maintenance is necessary warn the user of the obligation to check the appliance and keep it in good working orderGive all the instruction manuals to the user

133 Users liability

To guarantee optimum operation of the system you must abide by the following instructions

Read and follow the instructions given in the manuals provided with the applianceCall on a qualified professional to carry out installation and initial commissioningGet your installer to explain your installation to youHave the required inspections and maintenance carried out by a qualified installerKeep the instruction manuals in good condition close to the appliance

1 Safety

7717202 - v03 - 24062019 Gas 120 ACE 9

2 Symbols used

21 Symbols used in the manual

This manual uses various danger levels to draw attention to special instructions We do this to improve user safety to prevent problems and to guarantee correct operation of the appliance

DangerRisk of dangerous situations that may result in serious personal injury

Danger of electric shockRisk of electric shock

WarningRisk of dangerous situations that may result in minor personal injury

CautionRisk of material damage

ImportantPlease note important information

SeeReference to other manuals or pages in this manual

22 Symbols used on the appliance

1 Alternating current2 Protective earthing3 Before installing and commissioning the appliance carefully read

the instruction manuals provided4 Dispose of used products through an appropriate recovery and

recycling structure5 Caution danger of electric shock live parts Disconnect the mains

power prior to carrying out any work

Fig1

1 2

MW-2000068-1

1

2

3

4

5

2 Symbols used

10 Gas 120 ACE 7717202 - v03 - 24062019

3 Technical specifications

31 Homologations

311 Directives

This product has been manufactured and put into circulation in accordance with the requirements and standards of the following European Directives

Gas Appliances Regulation (EU) (2016426)

Pressure Equipment Directive 201468EU

Electromagnetic Compatibility Directive (201430EU)

Low Voltage Directive (201435EU)

Efficiency Directive (9242EEC)

European Ecodesign Directive (2009125EC)EU Regulation (8132013)

Energy Labelling Framework Regulation (EU) (20171369)EU Regulation (8112013)

BS 7074 Part 1 Application selection and installation of expansion vessels and ancillary equipment for sealed water systemsBS 6644 Specification for the installation of gas-fired condensing boilers with a nominal output exceeding 70 kWBS EN 12828 Design for water-based heating systemsBS EN 13831 Closed expansion vessels

Apart from the legal provisions and Directives the additional Directives described in these instructions must also be observedFor all provisions and Directives referred to in these instructions it is agreed that all addenda or subsequent provisions will apply at the time of installation

312 EC Declaration of Conformity

The unit complies with the standard type described in the EC declaration of conformity It has been manufactured and commissioned in accordance with European directivesThe original declaration of conformity is available from the manufacturer

313 Gas categories

Tab1 Czech Republic Spain Greece Portugal Switzerland UK

Category Gas type Connection pressure (mbar) Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

II2H3BP G20 (H gas) 20 X X X G30G31 (butanepropane) 303750 X X X

314 Certifications

Tab2 CertificationsCE number 0085CT0009NOx class 6 (EN 15502-1)

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 11

Type of flue gas connection Chimney

B23B23PB33

Forced flue

C13C13XC33C33XC43C43XC53C63C63XC83C83XC93C93X

315 Factory test

Before leaving the factory each boiler is optimally set and tested for

Electrical safetySettings (CO2)Water tightnessGas tightnessParameter setting

32 Technical data

Tab3 GeneralGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Nominal heat output (Pn)Central heating operation (80 degC60 degC)

minndashmax kW 120 - 615 141 - 842 189 - 1039

Nominal heat output (Pn)Central heating operation (50 degC30 degC)

minndashmax kW 135 - 650 158 - 895 212 - 1097

Nominal input power (Qn)Heating mode (Hi)

minndashmax kW 122 - 620 146 - 860 196 - 1070

Nominal input power (Qn)Heating operation (Hi) G31 (propane)

minndashmax kW 122 - 620 221 - 860 212 - 1070

Nominal input power (Qn)Central heating operation (Hs)

minndashmax kW 137 - 689 162 - 955 217 - 1189

Full load heating mode efficiency (Hi) (8060 degC) (9242EEC)

992 979 971

Full load heating mode efficiency (Hi) (50 degC30 degC)

1046 1041 1025

Part load heating mode efficiency (9242EEC) (return temperature 30 degC)

1104 1081 108

Tab4 Gas and flue gas valuesGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115G20 gas consumption (H gas)(1) minndashmax m3h 13 - 66 15 - 91 20 - 117Gas consumption G31 (propane)(1)

minndashmax m3h 05 - 25 09 - 35 09 - 45

3 Technical specifications

12 Gas 120 ACE 7717202 - v03 - 24062019

Gas 120 ACE Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

Gas resistance G20 (H gas)(2) max mbar 20 25 30BREAM NOx mgkWh 32 29 35Flue gas quantity minndashmax m3h 18 - 90 22 - 125 30 - 160Flue gas temperature minndashmax degC 30 - 120 30 - 120 30 - 120Maximum counter pressure (Pn) Pa 100 160 220

(1) Gas consumption based on lower heating value in standardised conditions T=28815 K p=101325 mbar Gag 3033 G25 2925 G31 8800 MJm3

(2) Gas resistance between boiler connection and measurement point on the gas valve unit

Tab5Gas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Gas inlet pressure G20 (H gas) minndashmax mbar 17 - 25 17 - 25 17 - 25G30G31 gas inlet pressure (ButanePropane) minndashmax mbar 37 - 50 37 - 50 37 - 50G31 gas inlet pressure (Propane) minndashmax mbar 37 - 50 37 - 50 37 - 50

Tab6 Central heating circuit dataGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Water content l 71 101 101Water operating pressure min bar 08 08 08Water operating pressure (MOP) max bar 40 40 40Water temperature max degC 110 110 110Operating temperature max degC 90 90 90Pressure drop secondary circuit (ΔT = 20 K) mWC 17 16 26Maximum permitted temperature difference(1) max degC 40(1) 40(1) 35(1)

(1) with a maximum flow temperature of 80 degC

Tab7 Electrical dataGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Supply voltage (AC) V 230 230 230Power consumption ndash full load max W 92 124 180Power consumption - low load max W 25 24 344Power consumption ndash standby max W 6 5 9Electrical protection rating IP X1B X1B X1BFuses Main A 10 10 10

Tab8 Other dataGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Total weight (empty) kg 98 109 109Average acoustic level at a distance of one meshytre from the boiler

dB(A) 40 45 45

SeeThe back cover for contact details

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 13

321 ErP technical parameters

Tab9 Technical parameters for boiler space heatersProduct name Gas 120 ACE

- 65Gas 120 ACE - 90

Gas 120 ACE - 115

Condensing boiler Yes Yes YesLow-temperature boiler(1) No No NoB1 boiler No No NoCogeneration space heater No No NoCombination heater No No NoRated heat output Prated kW 62 84 104

Useful heat output at rated heat output and high temperature regime(2)

P4 kW 615 842 1039

Useful heat output at 30 of rated heat output and low temperature regime(1)

P1 kW 205 279 347

Seasonal space heating energy efficiency ƞs 94 - -Useful efficiency at rated heat output and high temperature regime(2)

ƞ4 894 882 875

Useful efficiency at 30 of rated heat output and low temperature regime(1)

ƞ1 995 974 973

Auxiliary electricity consumption Full load elmax kW 0092 0124 0180Part load elmin kW 0025 0024 0034Stand-by PSB kW 0006 0005 0009

Other specifications Standby heat loss Pstby kW 0114 0119 0119Ignition burner power consumption Pign kW - - -Annual energy consumption QHE GJ 190 - -Sound power level indoors LWA dB 55 61 60Emissions of nitrogen oxides NOx mgkWh 29 41 41(1) Low temperature means for condensing boilers 30degC for low temperature boilers 37degC and for other heaters 50degC return temperature

(at heater inlet)(2) High temperature regime means 60 degC return temperature at heater inlet and 80 degC feed temperature at heater outlet

SeeThe back cover for contact details

322 Circulating pump (not provided)

The boiler is supplied without a circulating pump Take the boiler pressure drop and system pressure drop into account when selecting a pump

CautionThe maximum output of a pump that can be connected is 200 W Above this use an auxiliary relay adapted to the pump output

If possible install the pump in direct connection to the boiler on the return circuit

For more information see

Circulating pump

The maximum difference in temperature between the flow water and the return water and the speed at which the boiler temperature increases are restricted by the boilers control system

3 Technical specifications

14 Gas 120 ACE 7717202 - v03 - 24062019

Tab10 Minimum flow to be guaranteedMinimum flow to be guaranteed in the boiler Unit Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Minimum flow rate litreshour 290 340 455

A Dynamic head in mWcB Water flow rate (m3h)C Pressure drops

ΔT Maximum temperature difference between the flow water and the return water in the boiler

A Dynamic head in mWcB Water flow rate (m3h)C Pressure drops

ΔT Maximum temperature difference between the flow water and the return water in the boiler

A Dynamic head in mWcB Water flow rate (m3h)C Pressure drops

ΔT Maximum temperature difference between the flow water and the return water in the boiler

323 Sensor specifications

Outside temperature sensor specifications

Tab11 Outside temperature sensorTemperature degC -20 -16 -12 -8 -4 0 4 8 12 16 20 24Resistance Ω

(Ohm)2392 2088 1811 1562 1342 1149 984 842 720 616 528 454

Fig2 Pressure drops for Gas 120 ACE - 65

MW-2000671-3

T=20KT=40K

175

Fig3 Pressure drops for Gas 120 ACE - 90

MW-2000673-3

T=20KT=40K

362

Fig4 Pressure drops for Gas 120 ACE - 115

MW-2000674-3

T=20KT=35K

447

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 15

Boiler sensor return sensor

Tab12 Boiler sensor return sensorTemperature in degC

-20 -10 0 10 20 25 30 40 50 60 70 80 90 100 110

Resistance in Ω

98932 58879 36129 22804 14773 10000 9804 6652 4607 3252 2337 1707 1266 952 726

Circuit flow sensor domestic hot water sensor and system sensor

Tab13 Circuit flow sensor domestic hot water sensor and system sensorTemperature in degC 0 10 20 25 30 40 50 60 70 80 90Resistance in Ω 32014 19691 12474 10000 8080 5372 3661 2535 1794 1290 941

Specifications of the boiler flue gas sensor

Tab14 Boiler flue gas sensorTemperature degC 0 10 20 30 40 50 60 70 80 90 100Resistance Ohm 66000 40000 20000 16100 10600 7160 4940 3480 2490 1810 1340

33 Dimensions and connections

Fig5

MW-2000684-03

A

D

E

FG

BC

600 605150

92

132

240

141

418

5

2

34

107

105

95

100

1

255145

1 Heating circuit flow (R114)2 Gas inlet (G34)3 Heating circuit return (R114)

4 Condensate discharge (DN22)5 Flue gas pipe

Tab15 Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 1155 Diameter 100150 mm Diameter 100150 mm Diameter 100150 mmA (mm) 1340 1562 1562B (mm) 1164 1386 1386C (mm) 1082 1304 1304D (mm) 971 1193 1193

3 Technical specifications

16 Gas 120 ACE 7717202 - v03 - 24062019

Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 115E (mm) 410 632 632F (mm) 87 303 303G (mm) 128 350 350

34 Electrical diagram

341 Electrical diagram of boiler

Fig6

CU-GH-08

X3X4X5

X6

X8

1

2

3

1

2

3

X14

X7

X10

X11

X13

X12

1

2

3

4

5

25 A

Nrsquo

1

2

3

4

YE

GY

BR

GR

1

2

3

4

1

2

3

4

1

2

N L

1

2

1

2

OPTION

PRESSURE

SWITCH

MW-2000850-04

230V

1 2 3 4 5 6 7 8 9 10

24V

12 11

BL OR

10 9 8 7 6

GR BK RE YE BL

5 4 3 2 1

OR BK RE YE BL

Lrsquo

BL

GY

GY

GY

BL BR

GY

BL

BR

GY BL

BR

GY

BR

GR BK RE YE BL OR BK RE YE BL

BK

BL

BR

RE

GR

GR

BK

GR

GY

YE

BR

BL

OR

1

2

3

4

5

1

2

3

RE

BK

GR

BR

BK

BL

GR

1

2

BR

GR

GY

RE BL

BL

BK

BK

BR YE

GR PI

BL

BL

GR

PI

GR

RE

BR

YE

BK

BK

BR

GY

BL

BL

BR

GY

GY

BR

BL BL GY

BR

BL

BR

BK

GYWH

GY

BL

GY

BL

BR

BK

WH

BL

GY

1 12

4

5

2

3

6

7

8

9

10

11

16

17

15

14

13

1 230 V connector connection with control unit2 Mains interference filter3 Earthing of boiler front door4 Return sensor (TR)5 Flow sensor (FTS)6 Flue gas sensor7 Flue gas pressure switch (specific option for the

Netherlands)8 Gas valve unit (GB)9 Igniter (IT)

10 Ionizationignition electrode (E)11 Fan supply12 24 V connector connection with control unit13 Storage information (CSU)14 Pressure sensor (PS)15 Fan control (PWM)16 Light17 Control unit (CU-GH08)BK BlackBL Blue

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 17

BR BrownGY GreenYellowYE YellowOR OrangeGR Green

PI PinkGY GreyRD RedWH White

3 Technical specifications

18 Gas 120 ACE 7717202 - v03 - 24062019

4 Description of the product

41 General description

Gas 120 ACE floor-standing condensing gas boilers have the following characteristics

Low polluting emissionsHigh-efficiency heatingElectronic control panelFlue gas discharge by a forced flue or chimney type connection with bi-flow option

The boilers are perfectly suited to cascade installation

42 Operating principle

421 Gasair setting

The casing fitted to the boiler is also used as an air box Air is drawn in by the fan and gas injected into the Venturi by the fan intake The fan speed is modulated according to the settings the heat demand and the actual temperatures measured by the temperature sensors The gas and air are mixed in the Venturi The gasair ratio command function accurately adjusts the quantities of gas and air required This provides optimum combustion over the entire output range The gasair mixture is sent to the burner located upstream of the heat exchanger

422 Settings and safety devices

ImportantThe settings and safety devices are only operational if the boiler is powered up

Tab16 Description of the safety devicesDevice DescriptionNTC flue gas sensor The control panel blocks the gas supply to the burner in the event of overheatingFlame detector by ionisation The boiler is put into safety lock-down in the event of gas shortage or incomplete cross-

lighting on the burnerHydraulic pressure switch When the pressure switch detects a pressure lower than 08 bar (008 MPa) a warning

message is displayed without stopping the circulating pumpPost-circulating pump After the burner stops depending on the room thermostat setting and if in heating

mode the circulating pump runs for a further 3 minutesFrost protection device When the flow temperature is lower than 5 degC the burner starts up and runs until the

flow temperature reaches 15 degC This device runs under the following conditions

The boiler is switched onThe gas supply is workingThe pressure in the system is higher than 05 bar (005 MPa)

Anti-blocking of the pump If there are no heating or domestic hot water requirements for 24 consecutive hours the pumps start up automatically and run for 10 seconds

Anticipatory start-up of the circulatshying pumps

In heating mode only the appliance can start up the circulating pumps before burner igshynition The duration and activation of anticipatory start-up depends on the installation reshyquirements and the operating temperatures The duration of anticipatory start-up of the circulating pumps therefore varies from a few seconds to several minutes

4 Description of the product

7717202 - v03 - 24062019 Gas 120 ACE 19

43 Main boiler components

1 Control unit2 Flow sensor3 Light4 Ignitionionization electrode5 Non-return valve6 Gas valve7 Heat exchanger (heating circuit)8 Return sensor9 Pressure gauge sensor

10 CU-GH-08 PCB housing11 Siphon12 Flue gas circuit13 Intake silencer14 Venturi15 Flue gas sensor16 Fan17 Automatic air vent18 Flue gas measuring point19 Combustion air measuring point20 Flue gas outletair supply

44 PCBs

441 Description of the CU-GH-08 PCB

This PCB controls the core boiler components sensors actuators and gas valveThis PCB is factory-fitted and fully cabled and does not require any operationThe sensors valves circulating pumps etc are connected at the control unit

45 Standard delivery

The Gas 120 ACE boiler comes in 2 packages including

Tab17 Package contentsPackage ContentPackage 1 A floor-standing gas boiler

A flue system outlet with a measuring point (stored in the boiler)An outdoor temperature sensorA data plateAn installation and service manual

Package 2 A control unitTwo control unit mounting bolts on the boilerA user manual

46 Accessories amp options

A detailed list of accessories and options can be found in our catalogue

Fig7

MW-2000670-02

16

7 13

12

11

10

19

18

20

17

14

15

6

5

2

9

4

3

1

8

4 Description of the product

20 Gas 120 ACE 7717202 - v03 - 24062019

5 Installation

51 Installation regulations

CautionInstallation of the boiler must be done by a qualified professional in accordance with prevailing local and national regulations

CautionA disconnection device must be fitted to the permanent pipes in accordance with the installation rules

CautionRespect the maximum water inlet pressure to ensure correct operation of the appliance referring to the Technical Specifications chapter

52 Choice of the location

Decide on the ideal position for installation bearing in mind any legal directives and the space required by the appliance

Install the boiler on a solid stable structure capable of bearing the weight of the appliance when full of water and fully equippedWhen choosing the position for installation of the boiler bear in mind the positions authorised for the combustion gas discharge outlets and the air intake ventDo not install the boiler near any heat sources

521 Data plate

The data plate is located on the back of the boilerThe data plate provides important information regarding the appliance

Serial numberModelGas categoryCN1CN2etc

Once installation is complete the second data plate supplied in the documentation bag can be affixed to a more visible part of the boilerIf the boiler is equipped with a hydraulic kit (low-loss header or plate heat exchanger) affix the data plate to the side of the boiler

522 Space required - Boiler ventilation

Decide on the ideal position for installation bearing in mind any legal directives and the space required by the appliance

Install the boiler on a solid stable structure capable of bearing the weight of the appliance when full of water and fully equippedWhen choosing the position for installation of the boiler bear in mind the positions authorised for the combustion gas discharge outlets and the air intake ventDo not install the boiler near any heat sources

Fig8

MW-6000735-01

Made in France0085

CN1 17

CN2 7

230 V 50 Hz

B23(P) - B33 - C13(X) - C33(X) - C43(X) - C53 - C63(X) - C83(X) - C93(X)

PMS= 4bar - 04MPa

Pn =

8060 degC

5030 degC

NOx class 6 (Nox lt 56 mgkWh)

Qn =Hi kW

4030 degC

189-1039

196-1070

212-1097

180W

0085CT009

Hs (G20) 217-1189

IP21Imax= 10A

Tmax= 90degC

FR

LT

IT

AT

CZ

PL

II2Esi3BP

II2H3BP

II2H3BP

II2H3BP

II2H3P

II2H3BP

II2H3BP

II2ELw3BP

G20-20mbar G25-25mbar G30G31-303750mbar

G20-20mbar G30G31 - 30mbar

G20-20mbar G30G31 - 303750 mbar

G20-20mbar G30G31 - 3037mbar

G20-20mbar G31 - 30mbar

G20-20mbar G30G31 - 50mbar

G20-20mbar G30G31-303750mbar

G20-20mbar G27-20mbar G3031-37mbar

kW

Art Nr SN A0000YYWW000

kW

kW

kW

kW

kW

ESGR PT

LU RO EE

YY-WW

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 21

Keep the boiler accessible at all timesPlace the boiler on a base to make it easier to clean the roomThe boiler can be located along a partition on one of its sides provided there is a 500 mm space on the opposite sideAllow enough space around the boiler to facilitate accessibility and maintenance The minimum recommended dimensions are shown in the illustrationMake sure there is a connection to the water drainage system close to the boiler to discharge any condensates

ImportantTo fit the boiler position the pallet with the package 25 m in front of the desired location for the installation This distance is required to allow the boiler to be removed from its pallet

Tab18Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 115

A (mm) 500 500 500B (mm) 1082 1304 1304

To allow the intake of combustion air sufficient ventilation must be provided in the boiler room the cross section and position of which must satisfy the regulations in force

Great Britain BS 5440 Part 1 and Part 2

For boilers with a nominal output of more than 70 kW Upper and lower air vents comshypulsory

BS 6644 and IGEMUP-10

Caution

Avoid any low points in the flue gas and condensate discharge circuit in order to prevent any accumulation of condensatesDo not block the air inlets in the room or the combustion product evacuation or condensation water flow pipes (even partially)

If the boiler is installed in closed premises respect the minimum dimensions given in the diagram below Also allow for openings to obviate the following hazards

Accumulation of gasOverheating of the premisesGreat Britain Minimum cross section of openings see BS 5440 Part 1 and Part 2 and BS 6644

523 Ventilation

To allow the intake of combustion air sufficient ventilation must be provided in the boiler room for which the cross section and position must satisfy the regulations in force in the country in which the boiler is installed

Great Britain BS 5440 Part 1 and Part 2

For boilers with a nominal output of more than 70 kW Upper and lower air vents comshypulsory

BS 6644 and IGEMUP-10

Fig9

MW-2000679-03

500

B

1100

AS1

S2

260

580

350

600

500

5 Installation

22 Gas 120 ACE 7717202 - v03 - 24062019

If the boiler is installed in closed premises respect the minimum dimensions given in the diagram below Also allow for openings to obviate the following hazards

Accumulation of gasOverheating of the premisesGreat Britain Minimum cross section of openings see BS 5440 Part 1 and Part 2 and BS 6644

524 Fitting the outdoor sensor

Plugs diameter 4 mmdrill diameter 6 mm

1 Choose a recommended location for the outdoor sensor2 Put the 2 plugs in place delivered with the sensor3 Secure the sensor using the screws provided (diameter 4 mm)4 Connect the cable to the outdoor temperature sensor

Recommended positions

Place the outside sensor in a position that covers the following characteristics

On a faccedilade of the area to be heated on the north if possibleHalf way up the wall of the area to be heatedUnder the influence of changes in the weatherProtected from direct sunlightEasy to access

Fig11

MW-8800N001-3

2

1

2

11

2

H

12 H (min 25 m)

12 H (min 25 m)

12 Z

H

Z

1 Optimum location2 Possible position

H Inhabited height controlled by the sensorZ Inhabited area controlled by the sensor

Positions to be avoided

Avoid placing the outside sensor in a position with the following characteristics

Masked by part of the building (balcony roof etc)Close to a disruptive heat source (sun chimney ventilation grid etc)

Fig10

MW-8800N003-6

23

4

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 23

Fig12

MW-3000014-2

53 Transport

Transport the boiler pallet with a manual or electric pallet truck

54 Unpacking and preparing the boiler

Caution

Wear gloves to handle the boilerTransport the boiler pallet with a manual or electric pallet truckUse carrying bars (not provided) to move the boiler

ImportantTo fit the boiler position the pallet with the package 25 m in front of the desired location for the installation This distance is required to allow the boiler to be removed from its pallet

1 Cut the packaging2 Remove the packaging from the boiler but leave the boiler on the

shipping pallet

ImportantThe documentation bag (user manual + accessories) is contained in the protective block

Fig13

MW-6000736-01

Manual

11

12

5 Installation

24 Gas 120 ACE 7717202 - v03 - 24062019

3 Using a long tool unlock and remove the boilers front door Disconnect the earth wire

4 Remove the mounting bolts from the unloading ramps and the boiler (4 bolts at the rear and 4 bolts at the front)

5 Pull out the unloading ramps and turn them over6 Align the ramps with the rear castor wheels on the boiler

Fig14

MW-6000761-01

3

3

Fig15

MW-6000737-01

4

4

Fig16

MW-6000738-01

5

5

6

6

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 25

7 Lock the ramps correctly onto the pallet8 Screw the unloading ramps onto the pallet9 Fold down the ends of the ramp so that they rest on the ground

10 Tilt the boiler backwards until it is resting on the castor wheels then remove it from the pallet

11 Recycle the pallet

Fig17

MW-6000770-01

9

9

8

7

Fig18

MW-6000739-02

600

350

11

10

550

5 Installation

26 Gas 120 ACE 7717202 - v03 - 24062019

12 Level the boiler using the adjustable feet(1) Factory setting 30 mm adjustment range 20 to 40 mm

CautionThe rear castor wheels must no longer be in contact with the ground

55 Hydraulic connections

551 Water treatment

In many cases the boiler and the heating system can be filled with mains water without treating the water

CautionDo not add any chemical products to the heating water without first consulting a water treatment specialist For example antifreeze water softeners products to increase or reduce the pH value chemical additives andor inhibitors These may cause faults in the boiler and damage the heat exchanger

Important

Flush the installation with at least 3 times the volume of water contained in the heating systemFlush the DHW circuit with at least 20 times its volume of water

The water in the installation must comply with following specifications

Tab19 Installation water specifications Initial commissioning Concentration (top up)Degree of acidity (untreated water) pH 65 - 85 65 - 85

Degree of acidity (treated washyter) pH 70 - 90 70 - 90

Conductivity at 25degC μScm le 500 le 500Chlorides mglitre le 50 le 50Other components mglitre lt 1 lt 1

Total water hardnessdegf 5 - 35 le 15degdH 28 - 200 le 85mmollitre(1) 05 - 35 lt 15

(1) Flow temperature less than 90degC mdash Maximum hardness 150 mmoll

Fig19

MW-6000773-01

(1)

12

12

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 27

ImportantIf water treatment proves necessary Remeha recommends the following manufacturers

CillitClimalifeFernoxPermoSentinel

552 Flushing new installations and installations less than 6 months old

Before filling the heating installation it is essential to remove any debris (copper caulking soldering flux) from the installation

1 Clean the installation with a powerful universal cleaner2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

553 Flushing an existing installation

Before filling the heating installation it is essential to remove any sludge deposits which have accumulated in the heating circuit over the years

1 Remove any sludge from the installation2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

554 Connecting the heating circuit

ImportantAbide by the information shown in the hydraulic diagrams

The pipes are not provided

Caution

The heating pipe must be mounted in accordance with the provisions applicableIf installing stop valves position the filldrain valve and the expansion vessel between the stop valves and the boilerAlways install a safety valve calibrated to a maximum of 4 bar on the heating circuit The safety valve can be connected to a venting pot The safety valve must not be used to drain the heating circuitIt is recommended to install a sludge collector on all installations

SeeIf fitting with a hydraulic kit (low-loss header or plate heat exchanger) refer to the kit manual

555 Connecting the condensate discharge pipe

Use a neutralisation station to achieve a pH value of more than 65 (in accordance with prevailing regulations)Discharge the condensates directly into the mains drainage system via a siphon In view of the acidity level (pH 25 to 3) only condensate discharge pipes made from compatible plastic should be used

5 Installation

28 Gas 120 ACE 7717202 - v03 - 24062019

The condensate discharge pipe is located at the rear of the boiler

Do not block the condensate discharge pipeTilt the discharge pipe by at least 30 mm per metre and make sure there are no low points that could cause the accumulation of water or deposits Maximum horizontal length 5 metresDo not drain condensation water into a roof gutterConnect the condensate discharge pipe in accordance with prevailing standardsIt is preferable to use the condensate neutralisers recommended by the manufacturer of the boiler

1 Connect a plastic hose to the condensate discharge outlet (DN 22)2 Insert the other end of the hose into a waste water discharge outlet

556 Filling the siphon

DangerIf operating with the siphon empty combustion products will escape into the premises in which the boiler is installed

1 Pour water into the flue gas pipe (central pipe) until it flows out of the condensate discharge pipe

56 Gas connection

Danger

Close the main gas valve before starting work on the gas pipesThe diameters of the pipes must be defined in accordance with the standards in force in your countryConnect the gas pipe in accordance with prevailing standards and regulationsEnsure that there is no dust in the gas pipe

The gas pipes are not providedIn old gas networks we recommend fitting a gas filter with a low pressure drop upstream of this point

1 Clean the gas supply pipe2 Remove the anti-dust plug located on the boilers gas inlet3 Mount a gas stop valve (not provided) on the boilers gas inlet4 Connect the gas inlet pipe to the gas stop valve

Fig20

MW-2000825-01

pH gt 65

Oslash32A

Fig21

MW-6000742-02

1

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 29

5 Close the gas supply valve before testing the pressure on the gas supply pipe to avoid damage caused by excessive pressure on the gas regulator Decompress before reopening the valve

561 Gas supply

Before mounting check that the gas meter has sufficient capacity (in m3h) To do this you should bear in mind the consumption of all appliances If the capacity of the gas meter is too low inform the gas supply companyThe boilers are preset to run on G20 gas (gas H) and can be adapted to run with the following gases

G31 (gas P)G3031 (gas BP)

ImportantTo use a different type of gas contact an approved assistance service

57 Air supplyflue gas outlet connections

571 Classification

The discharge and intake pipes must be certified for the appropriate configuration and must meet the requirements of the prevailing installation standards in the country

Tab20 Configurations and recommendations for the flue systemConfiguration Principle DescriptionB23B23P

AD-3001055-01

Connection to a chimney using a CE connection kit (single pipe in a flue comshybustion air taken from the boiler room)Follow the connection instructions and adhere to the recommended maximum pipe lengthsComply with the applicable regulations governing ventilation and cross-secshytions for room aeration vents

B33

MW-5000925-1

Room-ventilated version

Without down-draught diverterJoint flue gas discharge via the roof with guaranteed natural draft (at all times underpressure in the joint discharge duct)Flue gas discharge rinsed with air air from the installation area (special conshystruction)The IP rating of the boiler is lowered to IP20

C13C13X

AD-3001056-01

Airflue gas connection using concentric pipes to a horizontal terminal (so-called forced flue) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

5 Installation

30 Gas 120 ACE 7717202 - v03 - 24062019

Configuration Principle DescriptionC33C33X

AD-3001057-01

Airflue gas connection using concentric pipes to a vertical terminal (roof outshylet) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

C43C43X

MW-2000822-01

Airflue gas connection via concentric pipes to a common pipe supplying severshyal heating applicationsThe common pipe has a roof connection to a vertical terminal that draws in the air required for combustion and discharges the combustion productsUse of CE-certified system

C53

AD-3001058-02

Airflue gas connection via separate pipes lead to two separate terminals One draws in the air required for combustion and the other discharges the combusshytion productsThe outlets may be in different pressure zonesDo not install the air supply and discharge on opposing surfacesUse of CE-certified system

C63C63X

The installer is responsible for installing a CE-certified discharge system that complies with the manufacturers recommendations (temperature flow pressure etc)

The maximum pressure drop in the pipes ΔP must not exceed the values given in the table below The pipes must be certified for this type of use and for a temperature of more than 100 degC The terminal part of the flue gas pipe must be certified as complying with the EN 1856-1 StandardIf installing discharge and intake pipes not supplied by Remeha these must be certified for the intended type of use and their maximum pressure drop must be compliant

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 31

Configuration Principle DescriptionC83C83X

MW-2000823-01

Flue gas connection to a collective flue for sealed boilers The air supply is inshydividual via a terminal coming from outside the buildingA concentric pipe can be used to both supply the boiler with combustion air and connect to the collective flue gas discharge systemThe chimney or flue gas pipe must be suitable for such use and the system CE certified

C93C93X

AD-3001059-01

Airflue gas connection via concentric pipes in an existing chimney The air supshyply in the chimney may be installed via the existing channel or via tubing Flue gas discharge and air intake are via a vertical terminal at the top of the chimney

The air intake and discharge must be close enough to be in the same pressure zoneThe minimum cross-sections are shown in the table belowThe flue system must be suitable for the intended use and the system CE certishyfied

Tab21 Minimum dimensions of the duct or pipe C93 C93X

Version (D) Without air supply With air supplyRigid 80 mm Oslash 130 mm 130 x 130 mm Oslash 140 mm 130 x 130 mmRigid 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmRigid 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmFlexible 80 mm Oslash 130 mm 130 x 130 mm Oslash 145 mm 130 x 130 mmFlexible 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmFlexible 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmConcentric 80125 mm Oslash 145 mm 145 x 145 mm Oslash 145 mm 145 x 145 mmConcentric 100150 mm Oslash 170 mm 170 x 170 mm Oslash 170 mm 170 x 170 mmConcentric 150200 mm Oslash 270 mm 270 x 270 mm - -

ImportantThe duct must comply with the air density requirements of the local regulations

Important

Only original components are authorised for connection to the boiler and for the terminalThe clear section must comply with the standardThe chimney must be swept before installing the discharge flue

CautionEnsure that the flue gas discharge pipes are securely attached to the wall with suitable retaining flanges to prevent any damage and guarantee the tightness of every gasket in the circuit

CautionThe minimum gradient of the condensates discharge pipe from the boiler to the waste water discharge must be 1 cm per linear metre

Fig22 Minimum dimensions of the duct or pipe C93 C93X

AD-3000330-03

D

Oslash

D

5 Installation

32 Gas 120 ACE 7717202 - v03 - 24062019

572 Lengths of the airflue gas pipes

The maximum lengths (Lmax) given in the table are valid for pipes in which the horizontal sections do not exceed one metre in total For each additional metre of horizontal pipe a multiplication coefficient of 12 must be applied when calculating the total length L The total length L is calculated by adding the lengths of the straight airflue gas pipes and the equivalent lengths of the other componentsAlways ensure that L is less than Lmax

ImportantFor the list of flue gas system accessories and the equivalent lengths refer to the current price list

Tab22 Lengths of the airflue gas pipes in metresConfigurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 100 mm 26 24 19

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 110 mm 40 40 40

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 110 mm 295 24 175

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 80125 mm - - -

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 100150 mm 9 8 59

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 80125 mm - - -

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 100150 mm 115 10 94

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 80125 mm over 2x80 mm

- - -

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 100150 mm over 2x100 mm

23 175 Air 11Flue gases 5

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm110 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 110150 mm110 mm

16 132 10

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 33

Configurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 110150 mm110 mm

165 135 94

Tab23 PPS pipe reduction for each element used

Diameter 80 mmSingle

80125 mmConcentric

100 mmSingle

100150 mmConcentric

45deg elbow 12 m 10 m 11 m 10 m87deg elbow 19 m 15 m 20 m 37 mStraight inspection tube 03 m 06 m - 10 m87deg inspection elbow 19 m 20 m 48 m -Inspection T 42 m 27 m 56 m 25 mInspection tube for flexible pipe 03 m - 05 m -

573 Dimensions of flue gas outlet pipe

WarningThe pipes connected to the flue gas adapter must satisfy the following dimension requirements

d1 External dimensions of flue gas outlet pipe

Tab24 Dimensions of pipe d1 (min-max)80 mm 793 - 803 mm100 mm 993 - 1003 mm150 mm 149 - 151 mm

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipe

Tab25 Dimensions of pipe d1 (min-max) D1 (min-max)8080 mm 793 - 803 mm 793 - 803 mm100100 mm 993 - 1003 mm 993 - 1003 mm110110 mm 1093 - 1103 mm 1093 - 1103 mm150150 mm 149 - 151 mm 149 - 151 mm

Fig23 Dimensions of open connection

AD-3001094-01

oslashd1

Fig24 Dimensions of parallel connection

AD-3000963-01

oslashd1 oslashD1

5 Installation

34 Gas 120 ACE 7717202 - v03 - 24062019

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipeL1 Length difference between flue gas outlet pipe and air supply pipe

Tab26 Dimensions of pipe d1 (min-max) D1 (min-max) L1

(1) (min-max)80125 mm 793 - 803 mm 124 - 1255 mm 0 - 15 mm100150 mm 993 - 1003 mm 149 - 151 mm 0 - 15 mm

(1) Shorten the inner pipe if the length difference is too great

574 Connection to the flue gas pipe

At delivery the flue gas outletair supply is fixed inside the boiler

1 Using a long tool unlock and remove the boilers front door2 Remove the boiler outlet

3 Two options for connection to the flue gas pipe

Option Description3a Connection to a vertical flue gas pipe Position the flue gas

outletair supply directly at the boiler outlet3b Connection to a horizontal flue gas pipe Insert an outlet elshy

bow ( not supplied) before the flue gas outletair supply

ImportantLubricate the gaskets on the flue system during assembly

Fig25 Dimensions of concentric connection

AD-3000962-01

oslashd1

L1

oslashD1

Fig26

MW-2000867-02

1

2

1

Fig27

3a 3b

MW-2000868-01

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 35

Fastening the coaxial pipes Fasten the intake pipes with two galvanised Oslash 42 mm screws with a maximum length of 16 mm

CautionBefore fixing the screws make sure that at least 45 cm of pipe is inserted in the gasket of the other pipe

WarningGuarantee a minimum pipe slope towards the boiler of at least 5 cm per metre

Fig28 Fastening the coaxial pipes using screws

BO-0000030

16 mm

5 Installation

36 Gas 120 ACE 7717202 - v03 - 24062019

6 Operation

61 Settings

To configure the installation and use the boiler please refer to the control unit manual

6 Operation

7717202 - v03 - 24062019 Gas 120 ACE 37

7 Maintenance

71 General

We recommend having the boiler inspected and serviced at regular intervals

CautionDo not neglect to service the boiler Contact a qualified professional or take out a maintenance contract for the obligatory annual servicing of the boilerFailure to service the appliance voids the warranty

Danger of electric shockBefore service work is started the boiler has to be de-energised and secured from accidentally being switched back on

CautionHave an inspection carried out and the flues swept at least once a year or more depending on the regulations in force in your country

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

CautionAfter maintenance or repair work check the entire heating system to ensure that there are no leaks

CautionOnly genuine spare parts may be used

72 Specific maintenance operations

721 Cleaning the siphon

1 Remove the flue gas outlet discharge pipe

2 Remove the condensate discharge pipe 3 Remove the screw from the siphon

Fig29

1

MW-2000903-01

Fig30

2

3

MW-2000904-01

7 Maintenance

38 Gas 120 ACE 7717202 - v03 - 24062019

4 Pull the siphon downwards to disengage it and pivot it to release it

5 Flush the siphon 6 Drain the siphon

7 Fill the siphon with clean water up to the mark 8 Lubricate the siphon gasket9 Re-engage the siphon and refit the screw

10 Refit the two pipes

722 Checking the ionisation current

1 Check the ionisation current at full load and at low loadThe value is stable after 1 minute

2 Clean or replace the ionisationignition electrode if the value is lower than 4 microA

Fig31

4

90deg

MW-2000905-01

Fig32

MW-2000843-01

Fig33

MW-2000844-01

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 39

723 Replace the ionizationignition electrode

The ionizationignition electrode must be replaced if

The ionization current is lt 4 microAThe electrode is damaged or worn

1 Remove the plug of the electrode from the igniter

ImportantThe ignition cable is fixed to the electrode and therefore may not be removed

2 Remove the two screws3 Remove the entire component4 Fit the new ionizationignition electrode with a new seal5 Reassemble the unit in the reverse order to disassembly

724 Servicing the forced flue connection pipes

1 Open the inspection hatches or remove the pipes2 Check that the air supply and discharge pipes are not blocked

If necessary clean the discharge pipe3 Check the tightness of the flue gas system4 Replace the tightness gaskets and if necessary any sections of pipe

until tightness is perfect

725 Checking the burner and cleaning the heat exchanger

1 Remove the air inlet flue on the venturi2 Loosen the gland on the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

Fig34

AD-0000088-01

4

1

2

3

Fig35 Removing the fan

AD-3001178-01

1

3

4

2

5

7 Maintenance

40 Gas 120 ACE 7717202 - v03 - 24062019

6 Remove the front plate from the heat exchanger7 Carefully lift the front plate including the burner and fan away from

the heat exchanger

8 Use a vacuum cleaner fitted with a special endpiece (accessory) to clean the top part of the heat exchanger (combustion chamber)

9 Vacuum again without the top brush on the end piece10 Clean the lower section of the heat exchanger with the special

cleaning blade (accessory)11 Check (eg using a mirror) whether any visible contamination has

been left behind If it has remove it with the vacuum cleaner12 Check that the burner cover of the dismantled burner is free from

cracks andor damage If not replace the burnerServicing the burner is usually not necessary it is self-cleaning Use compressed air to carefully blow away any dust

13 Reassemble the unit in reverse order

CautionRemember to reconnect the fan plugCheck that the gasket is correctly positioned between the mixing elbow and the heat exchanger (the gasket must lie absolutely flat in the appropriate groove to ensure that no gas can leak)Tighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the front plate nuts with a torque wrench to the firmness of 10 Nm

14 Open the gas supply and switch the power supply to the boiler back on

Fig36 Removing the front plate fan and burner

AD-3001179-01

6

7

Fig37 Cleaning the heat exchanger

AD-3001180-01

10

8 9

12

11

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 41

726 Checking the non-return valve

1 Remove the air inlet pipe from the venturi2 Unscrew the gland of the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

6 Dismantle the fan7 Remove the fan together with the gas valve unit8 Inspect the non-return valve and replace it in the event of a defect or

damage or if the maintenance kit contains a non-return valve9 Reassemble in the reverse order

CautionRemember to reconnect the fan plugTighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the two fan nuts with a torque wrench to the firmness of 38 Nm

Fig38 Disconnecting the fan

AD-3001178-01

1

3

4

2

5

Fig39 Checking the non-return valve

AD-3001181-01

2x

68

7

9

7 Maintenance

42 Gas 120 ACE 7717202 - v03 - 24062019

8 Decommissioning

81 Decommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

To switch off the boiler temporarily or permanently proceed as follows

1 Switch the boiler off2 Cut the electrical power to the boiler3 Close the gas valve on the boiler4 Drain the central heating system or ensure frost protection5 Close the door of the boiler to prevent air circulating inside it6 Remove the pipe connecting the boiler to the chimney and close the

nozzle with a plug

82 Recommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

Should it prove necessary to carry out the recommissioning of the boiler proceed as follows

1 Re-establish electrical power to the boiler2 Fit and check the flue gas pipe3 Fill the siphon with water4 Fill the central heating system5 Open the boiler gas valve6 Start up the boiler

8 Decommissioning

7717202 - v03 - 24062019 Gas 120 ACE 43

9 Disposal and recyclingCautionOnly qualified professionals are permitted to remove and dispose of the boiler in accordance with local and national regulations

If you need to remove the boiler proceed as follows

1 Switch off the boiler2 Cut the power supply to the boiler3 Close the main gas valve4 Close the water mains5 Close the gas valve on the boiler6 Drain the installation7 Remove the airflue gas pipes8 Disconnect all pipes9 Dismantle the boiler

Fig40

MW-3000179-03

9 Disposal and recycling

44 Gas 120 ACE 7717202 - v03 - 24062019

10 Environmental

101 Energy savings

Energy-saving advice

Do not block ventilation outletsDo not cover the radiators Do not hang curtains in front of the radiatorsInstall reflective panels behind the radiators to prevent heat lossesInsulate the pipes in rooms that are not heated (cellars and lofts)Close the radiators in rooms not in useDo not run hot (or cold) water pointlesslyInstall an energy-saving shower head which can save up to 40 energyTake showers rather than baths A bath consumes twice as much water and energy

102 Room thermostat and settings

Various models of room thermostat are available The type of thermostat used and the parameter selected impact total energy consumption

A modulating regulator which may be combined with thermostatic valves is eco-friendly in terms of energy and offers an excellent level of comfort This combination allows you to set the temperature separately for each room However do not install thermostatic radiator valves in the room in which the room thermostat is locatedComplete opening and closing of the thermostatic radiator valves causes undesirable variations in temperature Therefore these must be openedclosed progressivelySet the room thermostat to a temperature of approximately 20degC to reduce heating costs and energy consumptionLower the thermostat setting to approximately 16degC at night or when you are not at home This reduces heating costs and energy consumptionLower the thermostat setting well before airing the roomsSet the water temperature to a lower level in summer than in winter (eg 60degC and 80degC respectively) when an ONOFF thermostatis usedWhen clock thermostats and programmable thermostats are to be set do not forget to take any holidays and days when no one is at home into account

10 Environmental

7717202 - v03 - 24062019 Gas 120 ACE 45

11 Warranty

111 General

We would like to thank you for buying one of our appliances and for your trust in our productIn order to ensure continued safe and efficient operation we recommend that the product is regularly inspected and maintainedYour installer and our service department can assist with this

112 Terms of warranty

The following provisions do not affect the application in favour of the buyer of the legal provisions with regard to hidden defects that are applicable in the buyers countryThis appliance comes with a warranty that covers all manufacturing faults the warranty period will commence on the date of purchase stated on the installers invoiceThe warranty period is stated in our price listAs a manufacturer we can by no means be held liable if the appliance is used incorrectly is poorly maintained or not maintained at all or is not installed correctly (it is your responsibility to ensure that installation is carried out by a qualified installer)In particular we cannot be held liable for material damage intangible losses or physical injury resulting from an installation that does not comply with

Legal or regulatory requirements or provisions laid down by the local authoritiesNational or local regulations and special provisions relating to the installationOur manuals and installation instructions in particular in terms of regular maintenance of the appliances

Our warranty is limited to the replacement or repair of the parts found to be defective by our technical services team excluding labour transfer and transport costsOur warranty does not cover replacement or repair costs for parts that may become defective due to normal wear incorrect usage the intervention of unqualified third parties inadequate or insufficient supervision or maintenance a mains supply that is not appropriate or the use of unsuitable or poor quality fuelSmaller parts such as motors pumps electrical valves etc are guaranteed only if these parts have never been dismantledThe rights established in European Directive 9944EEC implemented by legal decree No 24 of 2 February 2002 and published in Official Journal No 57 of 8 March 2002 remain in force

11 Warranty

46 Gas 120 ACE 7717202 - v03 - 24062019

12 Spare parts

121 General

If inspection or maintenance work bring to light the need to replace a component in the boilerProvide the reference number given in the spare parts list when ordering a spare part

CautionOnly genuine spare parts may be used

122 Spare parts lists

1221 Exchanger

Fig41

MW-6000743-01

811x

7

7

4

2

16

3

10

119

65

1

13

12

18

14

19

15

18

17

Tab27

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

1 7699615 Complete exchanger x 1 7699614 Complete exchanger x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 47

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

2 S101564 Exchanger front plate x x x3 S54731 Exchanger inspection hatch insulation x x x4 S57241 Exchanger inspection hatch gasket x x x5 S100052 M4x10 self-locking screw (x20) x x x6 S54754 FURQ65 burner x 6 S57477 FURQ85 burner x x7 7623837 Set of 10 k NTC sensors x x x8 S54755 M6 nut (x20) x x x9 7659755 M4x10 screw (x10) x x x10 S53489 Electrode gasket (x10) x x x11 7692359 Ignition electrode x x x12 7631936 Flue gas flow pipe diameter 100 mm x x x13 7624643 NTC 2x20 k flue gas sensor with gasket x x x14 7624619 Ignition transformer x x x15 S56987 ZP M6x16 screw (x10) x x x16 7616253 Valve with support x x x17 7680596 Exchanger bracket x 17 7673616 Exchanger bracket x x18 7701752 Gasket diameter 100 mm (x5) x x x19 7632708 Earth electric clip (x2) x x x

1222 Gas circuit

Fig42

MW-6000744-01

3

2

5

6

9

4

8

10

7

12

11

1

14

13

13

12 Spare parts

48 Gas 120 ACE 7717202 - v03 - 24062019

Tab28Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 S101543 Silencer x 1 S101520 Silencer x 1 S101578 Silencer x2 S54777 Venturi gasket (x5) x 2 S59215 Gas valve-venturi gasket (x5) x 2 S101593 Gaskets (kit) x3 S101726 Fan RG 1481200-3633 x x 3 S100036 Fan RG 148 1200-3633-010202 x4 S101596 Gas valve VK4115v1386 x 4 S101597 Gas valve VK4115vb1012 x 4 S101510 Gas valve GB-ND 057 XP x5 S54766 Venturi x 5 S57488 Venturi x 5 S101595 Venturi VMS 45900450-010 x6 S59215 Gas valve-venturi gasket (x5) x x 7 S57827 Gas valve unit flange x8 S57828 268x22x25 O-ring (x5) x9 S101631 Diaphragm x10 7616249 Flue gas sensor cap (5x) x x x11 S56155 238x177x2 gasket (x20) x x x12 95760050 C HC M4-12 88 ZN3 screw x x x13 S48512 M5-10 screw (x10) x x x14 S101590 Silencer retaining clip x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 49

1223 Hydraulic circuit

Fig43

MW-6000745-01

1

14

6

9

11

8

12

5

37

9

10

2

4

13

Tab29Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7680598 Complete flow pipe x 1 7670807 Complete flow pipe x x2 7672557 Complete return pipe x x x3 7674076 Complete gas pipe x 3 7680434 Complete gas pipe x 3 7670720 Complete gas pipe x4 7698560 HUBA G38 pressure gauge x x x5 94994712 PVC pipe diameter 16x12 x x x6 7699357 Water deflector diameter 100 mm x x x7 94902073 Drain valve 12 x x x8 94918138 Air vent x x x9 95013064 44x32x2 mm green gasket x x x10 95013060 24x17x2 mm green gasket x x 10 95013062 30x21x12 mm green gasket x11 7692329 Condensate hose x x x13 7706103 Assembled siphon height 160 mm x 13 7706038 Assembled siphon height 250 mm x x14 7103731 Condensate drain pan gasket x x x

12 Spare parts

50 Gas 120 ACE 7717202 - v03 - 24062019

1224 Boiler body

Fig44

MW-6000746-01

2

2

1

6

3

34

5

4

Tab30Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7686377 Assembled frame x 1 7686139 Assembled frame x x2 7679958 117x34 handle diameter 65 mm x x x3 7676037 Wheel x x x4 7688301 Frame lateral gasket x 4 7688008 Frame lateral gasket x x5 7688353 Front panel gasket x 5 7688007 Front panel gasket x x6 7693874 R4-05 front panel lock x x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 51

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

E toimistoestsystemsfi

Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 3: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

Contents1 Safety 5

11 General safety instructions 512 Recommendations 713 Liabilities 8

131 Manufacturers liability 8132 Installers liability 9133 Users liability 9

2 Symbols used 1021 Symbols used in the manual 1022 Symbols used on the appliance 10

3 Technical specifications 1131 Homologations 11

311 Directives 11312 EC Declaration of Conformity 11313 Gas categories 11314 Certifications 11315 Factory test 12

32 Technical data 12321 ErP technical parameters 14322 Circulating pump (not provided) 14323 Sensor specifications 15

33 Dimensions and connections 1634 Electrical diagram 17

341 Electrical diagram of boiler 17

4 Description of the product 1941 General description 1942 Operating principle 19

421 Gasair setting 19422 Settings and safety devices 19

43 Main boiler components 2044 PCBs 20

441 Description of the CU-GH-08 PCB 2045 Standard delivery 2046 Accessories amp options 20

5 Installation 2151 Installation regulations 2152 Choice of the location 21

521 Data plate 21522 Space required - Boiler ventilation 21523 Ventilation 22524 Fitting the outdoor sensor 23

53 Transport 2454 Unpacking and preparing the boiler 2455 Hydraulic connections 27

551 Water treatment 27552 Flushing new installations and installations less than 6 months old 28553 Flushing an existing installation 28554 Connecting the heating circuit 28555 Connecting the condensate discharge pipe 28556 Filling the siphon 29

56 Gas connection 29561 Gas supply 30

57 Air supplyflue gas outlet connections 30571 Classification 30572 Lengths of the airflue gas pipes 33573 Dimensions of flue gas outlet pipe 34574 Connection to the flue gas pipe 35

6 Operation 3761 Settings 37

Contents

7717202 - v03 - 24062019 Gas 120 ACE 3

7 Maintenance 3871 General 3872 Specific maintenance operations 38

721 Cleaning the siphon 38722 Checking the ionisation current 39723 Replace the ionizationignition electrode 40724 Servicing the forced flue connection pipes 40725 Checking the burner and cleaning the heat exchanger 40726 Checking the non-return valve 42

8 Decommissioning 4381 Decommissioning procedure 4382 Recommissioning procedure 43

9 Disposal and recycling 44

10 Environmental 45101 Energy savings 45102 Room thermostat and settings 45

11 Warranty 46111 General 46112 Terms of warranty 46

12 Spare parts 47121 General 47122 Spare parts lists 47

1221 Exchanger 471222 Gas circuit 481223 Hydraulic circuit 501224 Boiler body 511225 Casing 521226 Boiler PCB housing 53

13 Appendix 54131 Package fiche - Boilers 54132 Product fiche - Temperature Controls 55133 Product fiche 55

Contents

4 Gas 120 ACE 7717202 - v03 - 24062019

1 Safety

11 General safety instructions

For the installer and end user

DangerThis appliance can be used by children aged from 8 years and above and persons with reduced physical sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved Children shall not play with the appliance Cleaning and user maintenance shall not be made by children without supervision

CautionDo not touch the flue gas pipes Depending on the boiler settings the temperature of the flue gas pipes can rise to over 60degC

CautionDo not touch radiators for long periods Depending on the boiler settings the temperature of the radiators may exceed 60degC

CautionTake precautions with the domestic hot water Depending on the boiler settings the domestic hot water temperature may exceed 65degC

Danger of electric shockBefore any work switch off the mains supply to the boiler

For the installer

1 Safety

7717202 - v03 - 24062019 Gas 120 ACE 5

DangerIf you smell gas1 Do not use a naked flame do not smoke do

not operate electrical contacts or switches (doorbell light motor lift etc)

2 Shut off the gas supply3 Open the windows4 Locate the probable leak and seal it

immediately5 If the leak is before the gas meter contact the

gas supplier

DangerIf you smell flue gases1 Switch off the appliance2 Open the windows3 Locate the probable source of the flue gas

leak and fix it immediately

WarningThe condensation drain must not be changed or sealed If a condensate neutralisation system is used the system must be cleaned regularly in accordance with the instructions provided by the manufacturer

For the end user

DangerIf you smell gas1 Do not use a naked flame do not smoke do

not operate electrical contacts or switches (doorbell light motor lift etc)

2 Shut off the gas supply3 Open the windows4 Evacuate the property5 Contact a qualified professional

DangerIf you smell flue gases1 Switch off the appliance2 Open the windows3 Evacuate the property4 Contact a qualified professional

1 Safety

6 Gas 120 ACE 7717202 - v03 - 24062019

12 Recommendations

DangerFor safety reasons we recommend fitting smoke and CO2 detectors and alarms at suitable places in your home

CautionThe boiler must always be connected to the protective earthingEarthing must comply with the prevailing installation standardsEarth the appliance before making any electrical connections

For the type and calibre of the protective equipment refer to the chapter Electrical Connections in the Installation and Service Manual

CautionIf a power cord comes with the appliance and it turns out to be damaged it must be replaced by the manufacturer its after sales service or persons with similar qualifications in order to obviate any danger

CautionA disconnection device must be fitted to the permanent pipes in accordance with the installation rules

CautionPower the appliance via a circuit that includes an omni-polar switch with contact opening distance of 3 mm or more

CautionDrain the boiler and heating system if the home is left empty for a long period of time and there is a chance of frost

CautionRemove the boiler casing only to perform maintenance and repair work Always put the casing back in place after such work

CautionTo enjoy warranty cover no modifications must be made to the boiler

1 Safety

7717202 - v03 - 24062019 Gas 120 ACE 7

CautionThe frost protection function only protects the boiler not the heating system

CautionThe frost protection function does not work if the boiler is powered off

CautionThe appliance should be switched to Summer or Frost Protection mode rather than be switched off in order to guarantee the following functions

Avoidance of pumps blockingFrost Protection

ImportantRespect the minimum and maximum water inlet pressure to ensure correct operation of the boiler refer to the chapter Technical Specifications

ImportantOnly qualified professionals are permitted to install the boiler in accordance with prevailing local and national regulations

ImportantNever remove or cover labels and data plates affixed to the boilerLabels and data plates must be legible throughout the entire lifetime of the boiler Immediately replace damaged or illegible instructions and warning labels

ImportantKeep this document close to the place where the appliance is installed

13 Liabilities

131 Manufacturers liability

Our products are manufactured in compliance with the requirements of the various Directives applicable They are therefore delivered with the marking and any documents necessary In the interests of the quality of our products we strive constantly to improve them We therefore reserve the right to modify the specifications given in this documentOur liability as manufacturer may not be invoked in the following cases

1 Safety

8 Gas 120 ACE 7717202 - v03 - 24062019

Failure to abide by the instructions on installing and maintaining the applianceFailure to abide by the instructions on using the applianceFaulty or insufficient maintenance of the appliance

132 Installers liability

The installer is responsible for the installation and initial commissioning of the appliance The installer must observe the following instructions

Read and follow the instructions given in the manuals provided with the applianceInstall the appliance in compliance with prevailing legislation and standardsCarry out initial commissioning and any checks necessaryExplain the installation to the userIf maintenance is necessary warn the user of the obligation to check the appliance and keep it in good working orderGive all the instruction manuals to the user

133 Users liability

To guarantee optimum operation of the system you must abide by the following instructions

Read and follow the instructions given in the manuals provided with the applianceCall on a qualified professional to carry out installation and initial commissioningGet your installer to explain your installation to youHave the required inspections and maintenance carried out by a qualified installerKeep the instruction manuals in good condition close to the appliance

1 Safety

7717202 - v03 - 24062019 Gas 120 ACE 9

2 Symbols used

21 Symbols used in the manual

This manual uses various danger levels to draw attention to special instructions We do this to improve user safety to prevent problems and to guarantee correct operation of the appliance

DangerRisk of dangerous situations that may result in serious personal injury

Danger of electric shockRisk of electric shock

WarningRisk of dangerous situations that may result in minor personal injury

CautionRisk of material damage

ImportantPlease note important information

SeeReference to other manuals or pages in this manual

22 Symbols used on the appliance

1 Alternating current2 Protective earthing3 Before installing and commissioning the appliance carefully read

the instruction manuals provided4 Dispose of used products through an appropriate recovery and

recycling structure5 Caution danger of electric shock live parts Disconnect the mains

power prior to carrying out any work

Fig1

1 2

MW-2000068-1

1

2

3

4

5

2 Symbols used

10 Gas 120 ACE 7717202 - v03 - 24062019

3 Technical specifications

31 Homologations

311 Directives

This product has been manufactured and put into circulation in accordance with the requirements and standards of the following European Directives

Gas Appliances Regulation (EU) (2016426)

Pressure Equipment Directive 201468EU

Electromagnetic Compatibility Directive (201430EU)

Low Voltage Directive (201435EU)

Efficiency Directive (9242EEC)

European Ecodesign Directive (2009125EC)EU Regulation (8132013)

Energy Labelling Framework Regulation (EU) (20171369)EU Regulation (8112013)

BS 7074 Part 1 Application selection and installation of expansion vessels and ancillary equipment for sealed water systemsBS 6644 Specification for the installation of gas-fired condensing boilers with a nominal output exceeding 70 kWBS EN 12828 Design for water-based heating systemsBS EN 13831 Closed expansion vessels

Apart from the legal provisions and Directives the additional Directives described in these instructions must also be observedFor all provisions and Directives referred to in these instructions it is agreed that all addenda or subsequent provisions will apply at the time of installation

312 EC Declaration of Conformity

The unit complies with the standard type described in the EC declaration of conformity It has been manufactured and commissioned in accordance with European directivesThe original declaration of conformity is available from the manufacturer

313 Gas categories

Tab1 Czech Republic Spain Greece Portugal Switzerland UK

Category Gas type Connection pressure (mbar) Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

II2H3BP G20 (H gas) 20 X X X G30G31 (butanepropane) 303750 X X X

314 Certifications

Tab2 CertificationsCE number 0085CT0009NOx class 6 (EN 15502-1)

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 11

Type of flue gas connection Chimney

B23B23PB33

Forced flue

C13C13XC33C33XC43C43XC53C63C63XC83C83XC93C93X

315 Factory test

Before leaving the factory each boiler is optimally set and tested for

Electrical safetySettings (CO2)Water tightnessGas tightnessParameter setting

32 Technical data

Tab3 GeneralGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Nominal heat output (Pn)Central heating operation (80 degC60 degC)

minndashmax kW 120 - 615 141 - 842 189 - 1039

Nominal heat output (Pn)Central heating operation (50 degC30 degC)

minndashmax kW 135 - 650 158 - 895 212 - 1097

Nominal input power (Qn)Heating mode (Hi)

minndashmax kW 122 - 620 146 - 860 196 - 1070

Nominal input power (Qn)Heating operation (Hi) G31 (propane)

minndashmax kW 122 - 620 221 - 860 212 - 1070

Nominal input power (Qn)Central heating operation (Hs)

minndashmax kW 137 - 689 162 - 955 217 - 1189

Full load heating mode efficiency (Hi) (8060 degC) (9242EEC)

992 979 971

Full load heating mode efficiency (Hi) (50 degC30 degC)

1046 1041 1025

Part load heating mode efficiency (9242EEC) (return temperature 30 degC)

1104 1081 108

Tab4 Gas and flue gas valuesGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115G20 gas consumption (H gas)(1) minndashmax m3h 13 - 66 15 - 91 20 - 117Gas consumption G31 (propane)(1)

minndashmax m3h 05 - 25 09 - 35 09 - 45

3 Technical specifications

12 Gas 120 ACE 7717202 - v03 - 24062019

Gas 120 ACE Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

Gas resistance G20 (H gas)(2) max mbar 20 25 30BREAM NOx mgkWh 32 29 35Flue gas quantity minndashmax m3h 18 - 90 22 - 125 30 - 160Flue gas temperature minndashmax degC 30 - 120 30 - 120 30 - 120Maximum counter pressure (Pn) Pa 100 160 220

(1) Gas consumption based on lower heating value in standardised conditions T=28815 K p=101325 mbar Gag 3033 G25 2925 G31 8800 MJm3

(2) Gas resistance between boiler connection and measurement point on the gas valve unit

Tab5Gas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Gas inlet pressure G20 (H gas) minndashmax mbar 17 - 25 17 - 25 17 - 25G30G31 gas inlet pressure (ButanePropane) minndashmax mbar 37 - 50 37 - 50 37 - 50G31 gas inlet pressure (Propane) minndashmax mbar 37 - 50 37 - 50 37 - 50

Tab6 Central heating circuit dataGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Water content l 71 101 101Water operating pressure min bar 08 08 08Water operating pressure (MOP) max bar 40 40 40Water temperature max degC 110 110 110Operating temperature max degC 90 90 90Pressure drop secondary circuit (ΔT = 20 K) mWC 17 16 26Maximum permitted temperature difference(1) max degC 40(1) 40(1) 35(1)

(1) with a maximum flow temperature of 80 degC

Tab7 Electrical dataGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Supply voltage (AC) V 230 230 230Power consumption ndash full load max W 92 124 180Power consumption - low load max W 25 24 344Power consumption ndash standby max W 6 5 9Electrical protection rating IP X1B X1B X1BFuses Main A 10 10 10

Tab8 Other dataGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Total weight (empty) kg 98 109 109Average acoustic level at a distance of one meshytre from the boiler

dB(A) 40 45 45

SeeThe back cover for contact details

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 13

321 ErP technical parameters

Tab9 Technical parameters for boiler space heatersProduct name Gas 120 ACE

- 65Gas 120 ACE - 90

Gas 120 ACE - 115

Condensing boiler Yes Yes YesLow-temperature boiler(1) No No NoB1 boiler No No NoCogeneration space heater No No NoCombination heater No No NoRated heat output Prated kW 62 84 104

Useful heat output at rated heat output and high temperature regime(2)

P4 kW 615 842 1039

Useful heat output at 30 of rated heat output and low temperature regime(1)

P1 kW 205 279 347

Seasonal space heating energy efficiency ƞs 94 - -Useful efficiency at rated heat output and high temperature regime(2)

ƞ4 894 882 875

Useful efficiency at 30 of rated heat output and low temperature regime(1)

ƞ1 995 974 973

Auxiliary electricity consumption Full load elmax kW 0092 0124 0180Part load elmin kW 0025 0024 0034Stand-by PSB kW 0006 0005 0009

Other specifications Standby heat loss Pstby kW 0114 0119 0119Ignition burner power consumption Pign kW - - -Annual energy consumption QHE GJ 190 - -Sound power level indoors LWA dB 55 61 60Emissions of nitrogen oxides NOx mgkWh 29 41 41(1) Low temperature means for condensing boilers 30degC for low temperature boilers 37degC and for other heaters 50degC return temperature

(at heater inlet)(2) High temperature regime means 60 degC return temperature at heater inlet and 80 degC feed temperature at heater outlet

SeeThe back cover for contact details

322 Circulating pump (not provided)

The boiler is supplied without a circulating pump Take the boiler pressure drop and system pressure drop into account when selecting a pump

CautionThe maximum output of a pump that can be connected is 200 W Above this use an auxiliary relay adapted to the pump output

If possible install the pump in direct connection to the boiler on the return circuit

For more information see

Circulating pump

The maximum difference in temperature between the flow water and the return water and the speed at which the boiler temperature increases are restricted by the boilers control system

3 Technical specifications

14 Gas 120 ACE 7717202 - v03 - 24062019

Tab10 Minimum flow to be guaranteedMinimum flow to be guaranteed in the boiler Unit Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Minimum flow rate litreshour 290 340 455

A Dynamic head in mWcB Water flow rate (m3h)C Pressure drops

ΔT Maximum temperature difference between the flow water and the return water in the boiler

A Dynamic head in mWcB Water flow rate (m3h)C Pressure drops

ΔT Maximum temperature difference between the flow water and the return water in the boiler

A Dynamic head in mWcB Water flow rate (m3h)C Pressure drops

ΔT Maximum temperature difference between the flow water and the return water in the boiler

323 Sensor specifications

Outside temperature sensor specifications

Tab11 Outside temperature sensorTemperature degC -20 -16 -12 -8 -4 0 4 8 12 16 20 24Resistance Ω

(Ohm)2392 2088 1811 1562 1342 1149 984 842 720 616 528 454

Fig2 Pressure drops for Gas 120 ACE - 65

MW-2000671-3

T=20KT=40K

175

Fig3 Pressure drops for Gas 120 ACE - 90

MW-2000673-3

T=20KT=40K

362

Fig4 Pressure drops for Gas 120 ACE - 115

MW-2000674-3

T=20KT=35K

447

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 15

Boiler sensor return sensor

Tab12 Boiler sensor return sensorTemperature in degC

-20 -10 0 10 20 25 30 40 50 60 70 80 90 100 110

Resistance in Ω

98932 58879 36129 22804 14773 10000 9804 6652 4607 3252 2337 1707 1266 952 726

Circuit flow sensor domestic hot water sensor and system sensor

Tab13 Circuit flow sensor domestic hot water sensor and system sensorTemperature in degC 0 10 20 25 30 40 50 60 70 80 90Resistance in Ω 32014 19691 12474 10000 8080 5372 3661 2535 1794 1290 941

Specifications of the boiler flue gas sensor

Tab14 Boiler flue gas sensorTemperature degC 0 10 20 30 40 50 60 70 80 90 100Resistance Ohm 66000 40000 20000 16100 10600 7160 4940 3480 2490 1810 1340

33 Dimensions and connections

Fig5

MW-2000684-03

A

D

E

FG

BC

600 605150

92

132

240

141

418

5

2

34

107

105

95

100

1

255145

1 Heating circuit flow (R114)2 Gas inlet (G34)3 Heating circuit return (R114)

4 Condensate discharge (DN22)5 Flue gas pipe

Tab15 Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 1155 Diameter 100150 mm Diameter 100150 mm Diameter 100150 mmA (mm) 1340 1562 1562B (mm) 1164 1386 1386C (mm) 1082 1304 1304D (mm) 971 1193 1193

3 Technical specifications

16 Gas 120 ACE 7717202 - v03 - 24062019

Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 115E (mm) 410 632 632F (mm) 87 303 303G (mm) 128 350 350

34 Electrical diagram

341 Electrical diagram of boiler

Fig6

CU-GH-08

X3X4X5

X6

X8

1

2

3

1

2

3

X14

X7

X10

X11

X13

X12

1

2

3

4

5

25 A

Nrsquo

1

2

3

4

YE

GY

BR

GR

1

2

3

4

1

2

3

4

1

2

N L

1

2

1

2

OPTION

PRESSURE

SWITCH

MW-2000850-04

230V

1 2 3 4 5 6 7 8 9 10

24V

12 11

BL OR

10 9 8 7 6

GR BK RE YE BL

5 4 3 2 1

OR BK RE YE BL

Lrsquo

BL

GY

GY

GY

BL BR

GY

BL

BR

GY BL

BR

GY

BR

GR BK RE YE BL OR BK RE YE BL

BK

BL

BR

RE

GR

GR

BK

GR

GY

YE

BR

BL

OR

1

2

3

4

5

1

2

3

RE

BK

GR

BR

BK

BL

GR

1

2

BR

GR

GY

RE BL

BL

BK

BK

BR YE

GR PI

BL

BL

GR

PI

GR

RE

BR

YE

BK

BK

BR

GY

BL

BL

BR

GY

GY

BR

BL BL GY

BR

BL

BR

BK

GYWH

GY

BL

GY

BL

BR

BK

WH

BL

GY

1 12

4

5

2

3

6

7

8

9

10

11

16

17

15

14

13

1 230 V connector connection with control unit2 Mains interference filter3 Earthing of boiler front door4 Return sensor (TR)5 Flow sensor (FTS)6 Flue gas sensor7 Flue gas pressure switch (specific option for the

Netherlands)8 Gas valve unit (GB)9 Igniter (IT)

10 Ionizationignition electrode (E)11 Fan supply12 24 V connector connection with control unit13 Storage information (CSU)14 Pressure sensor (PS)15 Fan control (PWM)16 Light17 Control unit (CU-GH08)BK BlackBL Blue

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 17

BR BrownGY GreenYellowYE YellowOR OrangeGR Green

PI PinkGY GreyRD RedWH White

3 Technical specifications

18 Gas 120 ACE 7717202 - v03 - 24062019

4 Description of the product

41 General description

Gas 120 ACE floor-standing condensing gas boilers have the following characteristics

Low polluting emissionsHigh-efficiency heatingElectronic control panelFlue gas discharge by a forced flue or chimney type connection with bi-flow option

The boilers are perfectly suited to cascade installation

42 Operating principle

421 Gasair setting

The casing fitted to the boiler is also used as an air box Air is drawn in by the fan and gas injected into the Venturi by the fan intake The fan speed is modulated according to the settings the heat demand and the actual temperatures measured by the temperature sensors The gas and air are mixed in the Venturi The gasair ratio command function accurately adjusts the quantities of gas and air required This provides optimum combustion over the entire output range The gasair mixture is sent to the burner located upstream of the heat exchanger

422 Settings and safety devices

ImportantThe settings and safety devices are only operational if the boiler is powered up

Tab16 Description of the safety devicesDevice DescriptionNTC flue gas sensor The control panel blocks the gas supply to the burner in the event of overheatingFlame detector by ionisation The boiler is put into safety lock-down in the event of gas shortage or incomplete cross-

lighting on the burnerHydraulic pressure switch When the pressure switch detects a pressure lower than 08 bar (008 MPa) a warning

message is displayed without stopping the circulating pumpPost-circulating pump After the burner stops depending on the room thermostat setting and if in heating

mode the circulating pump runs for a further 3 minutesFrost protection device When the flow temperature is lower than 5 degC the burner starts up and runs until the

flow temperature reaches 15 degC This device runs under the following conditions

The boiler is switched onThe gas supply is workingThe pressure in the system is higher than 05 bar (005 MPa)

Anti-blocking of the pump If there are no heating or domestic hot water requirements for 24 consecutive hours the pumps start up automatically and run for 10 seconds

Anticipatory start-up of the circulatshying pumps

In heating mode only the appliance can start up the circulating pumps before burner igshynition The duration and activation of anticipatory start-up depends on the installation reshyquirements and the operating temperatures The duration of anticipatory start-up of the circulating pumps therefore varies from a few seconds to several minutes

4 Description of the product

7717202 - v03 - 24062019 Gas 120 ACE 19

43 Main boiler components

1 Control unit2 Flow sensor3 Light4 Ignitionionization electrode5 Non-return valve6 Gas valve7 Heat exchanger (heating circuit)8 Return sensor9 Pressure gauge sensor

10 CU-GH-08 PCB housing11 Siphon12 Flue gas circuit13 Intake silencer14 Venturi15 Flue gas sensor16 Fan17 Automatic air vent18 Flue gas measuring point19 Combustion air measuring point20 Flue gas outletair supply

44 PCBs

441 Description of the CU-GH-08 PCB

This PCB controls the core boiler components sensors actuators and gas valveThis PCB is factory-fitted and fully cabled and does not require any operationThe sensors valves circulating pumps etc are connected at the control unit

45 Standard delivery

The Gas 120 ACE boiler comes in 2 packages including

Tab17 Package contentsPackage ContentPackage 1 A floor-standing gas boiler

A flue system outlet with a measuring point (stored in the boiler)An outdoor temperature sensorA data plateAn installation and service manual

Package 2 A control unitTwo control unit mounting bolts on the boilerA user manual

46 Accessories amp options

A detailed list of accessories and options can be found in our catalogue

Fig7

MW-2000670-02

16

7 13

12

11

10

19

18

20

17

14

15

6

5

2

9

4

3

1

8

4 Description of the product

20 Gas 120 ACE 7717202 - v03 - 24062019

5 Installation

51 Installation regulations

CautionInstallation of the boiler must be done by a qualified professional in accordance with prevailing local and national regulations

CautionA disconnection device must be fitted to the permanent pipes in accordance with the installation rules

CautionRespect the maximum water inlet pressure to ensure correct operation of the appliance referring to the Technical Specifications chapter

52 Choice of the location

Decide on the ideal position for installation bearing in mind any legal directives and the space required by the appliance

Install the boiler on a solid stable structure capable of bearing the weight of the appliance when full of water and fully equippedWhen choosing the position for installation of the boiler bear in mind the positions authorised for the combustion gas discharge outlets and the air intake ventDo not install the boiler near any heat sources

521 Data plate

The data plate is located on the back of the boilerThe data plate provides important information regarding the appliance

Serial numberModelGas categoryCN1CN2etc

Once installation is complete the second data plate supplied in the documentation bag can be affixed to a more visible part of the boilerIf the boiler is equipped with a hydraulic kit (low-loss header or plate heat exchanger) affix the data plate to the side of the boiler

522 Space required - Boiler ventilation

Decide on the ideal position for installation bearing in mind any legal directives and the space required by the appliance

Install the boiler on a solid stable structure capable of bearing the weight of the appliance when full of water and fully equippedWhen choosing the position for installation of the boiler bear in mind the positions authorised for the combustion gas discharge outlets and the air intake ventDo not install the boiler near any heat sources

Fig8

MW-6000735-01

Made in France0085

CN1 17

CN2 7

230 V 50 Hz

B23(P) - B33 - C13(X) - C33(X) - C43(X) - C53 - C63(X) - C83(X) - C93(X)

PMS= 4bar - 04MPa

Pn =

8060 degC

5030 degC

NOx class 6 (Nox lt 56 mgkWh)

Qn =Hi kW

4030 degC

189-1039

196-1070

212-1097

180W

0085CT009

Hs (G20) 217-1189

IP21Imax= 10A

Tmax= 90degC

FR

LT

IT

AT

CZ

PL

II2Esi3BP

II2H3BP

II2H3BP

II2H3BP

II2H3P

II2H3BP

II2H3BP

II2ELw3BP

G20-20mbar G25-25mbar G30G31-303750mbar

G20-20mbar G30G31 - 30mbar

G20-20mbar G30G31 - 303750 mbar

G20-20mbar G30G31 - 3037mbar

G20-20mbar G31 - 30mbar

G20-20mbar G30G31 - 50mbar

G20-20mbar G30G31-303750mbar

G20-20mbar G27-20mbar G3031-37mbar

kW

Art Nr SN A0000YYWW000

kW

kW

kW

kW

kW

ESGR PT

LU RO EE

YY-WW

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 21

Keep the boiler accessible at all timesPlace the boiler on a base to make it easier to clean the roomThe boiler can be located along a partition on one of its sides provided there is a 500 mm space on the opposite sideAllow enough space around the boiler to facilitate accessibility and maintenance The minimum recommended dimensions are shown in the illustrationMake sure there is a connection to the water drainage system close to the boiler to discharge any condensates

ImportantTo fit the boiler position the pallet with the package 25 m in front of the desired location for the installation This distance is required to allow the boiler to be removed from its pallet

Tab18Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 115

A (mm) 500 500 500B (mm) 1082 1304 1304

To allow the intake of combustion air sufficient ventilation must be provided in the boiler room the cross section and position of which must satisfy the regulations in force

Great Britain BS 5440 Part 1 and Part 2

For boilers with a nominal output of more than 70 kW Upper and lower air vents comshypulsory

BS 6644 and IGEMUP-10

Caution

Avoid any low points in the flue gas and condensate discharge circuit in order to prevent any accumulation of condensatesDo not block the air inlets in the room or the combustion product evacuation or condensation water flow pipes (even partially)

If the boiler is installed in closed premises respect the minimum dimensions given in the diagram below Also allow for openings to obviate the following hazards

Accumulation of gasOverheating of the premisesGreat Britain Minimum cross section of openings see BS 5440 Part 1 and Part 2 and BS 6644

523 Ventilation

To allow the intake of combustion air sufficient ventilation must be provided in the boiler room for which the cross section and position must satisfy the regulations in force in the country in which the boiler is installed

Great Britain BS 5440 Part 1 and Part 2

For boilers with a nominal output of more than 70 kW Upper and lower air vents comshypulsory

BS 6644 and IGEMUP-10

Fig9

MW-2000679-03

500

B

1100

AS1

S2

260

580

350

600

500

5 Installation

22 Gas 120 ACE 7717202 - v03 - 24062019

If the boiler is installed in closed premises respect the minimum dimensions given in the diagram below Also allow for openings to obviate the following hazards

Accumulation of gasOverheating of the premisesGreat Britain Minimum cross section of openings see BS 5440 Part 1 and Part 2 and BS 6644

524 Fitting the outdoor sensor

Plugs diameter 4 mmdrill diameter 6 mm

1 Choose a recommended location for the outdoor sensor2 Put the 2 plugs in place delivered with the sensor3 Secure the sensor using the screws provided (diameter 4 mm)4 Connect the cable to the outdoor temperature sensor

Recommended positions

Place the outside sensor in a position that covers the following characteristics

On a faccedilade of the area to be heated on the north if possibleHalf way up the wall of the area to be heatedUnder the influence of changes in the weatherProtected from direct sunlightEasy to access

Fig11

MW-8800N001-3

2

1

2

11

2

H

12 H (min 25 m)

12 H (min 25 m)

12 Z

H

Z

1 Optimum location2 Possible position

H Inhabited height controlled by the sensorZ Inhabited area controlled by the sensor

Positions to be avoided

Avoid placing the outside sensor in a position with the following characteristics

Masked by part of the building (balcony roof etc)Close to a disruptive heat source (sun chimney ventilation grid etc)

Fig10

MW-8800N003-6

23

4

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 23

Fig12

MW-3000014-2

53 Transport

Transport the boiler pallet with a manual or electric pallet truck

54 Unpacking and preparing the boiler

Caution

Wear gloves to handle the boilerTransport the boiler pallet with a manual or electric pallet truckUse carrying bars (not provided) to move the boiler

ImportantTo fit the boiler position the pallet with the package 25 m in front of the desired location for the installation This distance is required to allow the boiler to be removed from its pallet

1 Cut the packaging2 Remove the packaging from the boiler but leave the boiler on the

shipping pallet

ImportantThe documentation bag (user manual + accessories) is contained in the protective block

Fig13

MW-6000736-01

Manual

11

12

5 Installation

24 Gas 120 ACE 7717202 - v03 - 24062019

3 Using a long tool unlock and remove the boilers front door Disconnect the earth wire

4 Remove the mounting bolts from the unloading ramps and the boiler (4 bolts at the rear and 4 bolts at the front)

5 Pull out the unloading ramps and turn them over6 Align the ramps with the rear castor wheels on the boiler

Fig14

MW-6000761-01

3

3

Fig15

MW-6000737-01

4

4

Fig16

MW-6000738-01

5

5

6

6

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 25

7 Lock the ramps correctly onto the pallet8 Screw the unloading ramps onto the pallet9 Fold down the ends of the ramp so that they rest on the ground

10 Tilt the boiler backwards until it is resting on the castor wheels then remove it from the pallet

11 Recycle the pallet

Fig17

MW-6000770-01

9

9

8

7

Fig18

MW-6000739-02

600

350

11

10

550

5 Installation

26 Gas 120 ACE 7717202 - v03 - 24062019

12 Level the boiler using the adjustable feet(1) Factory setting 30 mm adjustment range 20 to 40 mm

CautionThe rear castor wheels must no longer be in contact with the ground

55 Hydraulic connections

551 Water treatment

In many cases the boiler and the heating system can be filled with mains water without treating the water

CautionDo not add any chemical products to the heating water without first consulting a water treatment specialist For example antifreeze water softeners products to increase or reduce the pH value chemical additives andor inhibitors These may cause faults in the boiler and damage the heat exchanger

Important

Flush the installation with at least 3 times the volume of water contained in the heating systemFlush the DHW circuit with at least 20 times its volume of water

The water in the installation must comply with following specifications

Tab19 Installation water specifications Initial commissioning Concentration (top up)Degree of acidity (untreated water) pH 65 - 85 65 - 85

Degree of acidity (treated washyter) pH 70 - 90 70 - 90

Conductivity at 25degC μScm le 500 le 500Chlorides mglitre le 50 le 50Other components mglitre lt 1 lt 1

Total water hardnessdegf 5 - 35 le 15degdH 28 - 200 le 85mmollitre(1) 05 - 35 lt 15

(1) Flow temperature less than 90degC mdash Maximum hardness 150 mmoll

Fig19

MW-6000773-01

(1)

12

12

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 27

ImportantIf water treatment proves necessary Remeha recommends the following manufacturers

CillitClimalifeFernoxPermoSentinel

552 Flushing new installations and installations less than 6 months old

Before filling the heating installation it is essential to remove any debris (copper caulking soldering flux) from the installation

1 Clean the installation with a powerful universal cleaner2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

553 Flushing an existing installation

Before filling the heating installation it is essential to remove any sludge deposits which have accumulated in the heating circuit over the years

1 Remove any sludge from the installation2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

554 Connecting the heating circuit

ImportantAbide by the information shown in the hydraulic diagrams

The pipes are not provided

Caution

The heating pipe must be mounted in accordance with the provisions applicableIf installing stop valves position the filldrain valve and the expansion vessel between the stop valves and the boilerAlways install a safety valve calibrated to a maximum of 4 bar on the heating circuit The safety valve can be connected to a venting pot The safety valve must not be used to drain the heating circuitIt is recommended to install a sludge collector on all installations

SeeIf fitting with a hydraulic kit (low-loss header or plate heat exchanger) refer to the kit manual

555 Connecting the condensate discharge pipe

Use a neutralisation station to achieve a pH value of more than 65 (in accordance with prevailing regulations)Discharge the condensates directly into the mains drainage system via a siphon In view of the acidity level (pH 25 to 3) only condensate discharge pipes made from compatible plastic should be used

5 Installation

28 Gas 120 ACE 7717202 - v03 - 24062019

The condensate discharge pipe is located at the rear of the boiler

Do not block the condensate discharge pipeTilt the discharge pipe by at least 30 mm per metre and make sure there are no low points that could cause the accumulation of water or deposits Maximum horizontal length 5 metresDo not drain condensation water into a roof gutterConnect the condensate discharge pipe in accordance with prevailing standardsIt is preferable to use the condensate neutralisers recommended by the manufacturer of the boiler

1 Connect a plastic hose to the condensate discharge outlet (DN 22)2 Insert the other end of the hose into a waste water discharge outlet

556 Filling the siphon

DangerIf operating with the siphon empty combustion products will escape into the premises in which the boiler is installed

1 Pour water into the flue gas pipe (central pipe) until it flows out of the condensate discharge pipe

56 Gas connection

Danger

Close the main gas valve before starting work on the gas pipesThe diameters of the pipes must be defined in accordance with the standards in force in your countryConnect the gas pipe in accordance with prevailing standards and regulationsEnsure that there is no dust in the gas pipe

The gas pipes are not providedIn old gas networks we recommend fitting a gas filter with a low pressure drop upstream of this point

1 Clean the gas supply pipe2 Remove the anti-dust plug located on the boilers gas inlet3 Mount a gas stop valve (not provided) on the boilers gas inlet4 Connect the gas inlet pipe to the gas stop valve

Fig20

MW-2000825-01

pH gt 65

Oslash32A

Fig21

MW-6000742-02

1

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 29

5 Close the gas supply valve before testing the pressure on the gas supply pipe to avoid damage caused by excessive pressure on the gas regulator Decompress before reopening the valve

561 Gas supply

Before mounting check that the gas meter has sufficient capacity (in m3h) To do this you should bear in mind the consumption of all appliances If the capacity of the gas meter is too low inform the gas supply companyThe boilers are preset to run on G20 gas (gas H) and can be adapted to run with the following gases

G31 (gas P)G3031 (gas BP)

ImportantTo use a different type of gas contact an approved assistance service

57 Air supplyflue gas outlet connections

571 Classification

The discharge and intake pipes must be certified for the appropriate configuration and must meet the requirements of the prevailing installation standards in the country

Tab20 Configurations and recommendations for the flue systemConfiguration Principle DescriptionB23B23P

AD-3001055-01

Connection to a chimney using a CE connection kit (single pipe in a flue comshybustion air taken from the boiler room)Follow the connection instructions and adhere to the recommended maximum pipe lengthsComply with the applicable regulations governing ventilation and cross-secshytions for room aeration vents

B33

MW-5000925-1

Room-ventilated version

Without down-draught diverterJoint flue gas discharge via the roof with guaranteed natural draft (at all times underpressure in the joint discharge duct)Flue gas discharge rinsed with air air from the installation area (special conshystruction)The IP rating of the boiler is lowered to IP20

C13C13X

AD-3001056-01

Airflue gas connection using concentric pipes to a horizontal terminal (so-called forced flue) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

5 Installation

30 Gas 120 ACE 7717202 - v03 - 24062019

Configuration Principle DescriptionC33C33X

AD-3001057-01

Airflue gas connection using concentric pipes to a vertical terminal (roof outshylet) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

C43C43X

MW-2000822-01

Airflue gas connection via concentric pipes to a common pipe supplying severshyal heating applicationsThe common pipe has a roof connection to a vertical terminal that draws in the air required for combustion and discharges the combustion productsUse of CE-certified system

C53

AD-3001058-02

Airflue gas connection via separate pipes lead to two separate terminals One draws in the air required for combustion and the other discharges the combusshytion productsThe outlets may be in different pressure zonesDo not install the air supply and discharge on opposing surfacesUse of CE-certified system

C63C63X

The installer is responsible for installing a CE-certified discharge system that complies with the manufacturers recommendations (temperature flow pressure etc)

The maximum pressure drop in the pipes ΔP must not exceed the values given in the table below The pipes must be certified for this type of use and for a temperature of more than 100 degC The terminal part of the flue gas pipe must be certified as complying with the EN 1856-1 StandardIf installing discharge and intake pipes not supplied by Remeha these must be certified for the intended type of use and their maximum pressure drop must be compliant

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 31

Configuration Principle DescriptionC83C83X

MW-2000823-01

Flue gas connection to a collective flue for sealed boilers The air supply is inshydividual via a terminal coming from outside the buildingA concentric pipe can be used to both supply the boiler with combustion air and connect to the collective flue gas discharge systemThe chimney or flue gas pipe must be suitable for such use and the system CE certified

C93C93X

AD-3001059-01

Airflue gas connection via concentric pipes in an existing chimney The air supshyply in the chimney may be installed via the existing channel or via tubing Flue gas discharge and air intake are via a vertical terminal at the top of the chimney

The air intake and discharge must be close enough to be in the same pressure zoneThe minimum cross-sections are shown in the table belowThe flue system must be suitable for the intended use and the system CE certishyfied

Tab21 Minimum dimensions of the duct or pipe C93 C93X

Version (D) Without air supply With air supplyRigid 80 mm Oslash 130 mm 130 x 130 mm Oslash 140 mm 130 x 130 mmRigid 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmRigid 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmFlexible 80 mm Oslash 130 mm 130 x 130 mm Oslash 145 mm 130 x 130 mmFlexible 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmFlexible 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmConcentric 80125 mm Oslash 145 mm 145 x 145 mm Oslash 145 mm 145 x 145 mmConcentric 100150 mm Oslash 170 mm 170 x 170 mm Oslash 170 mm 170 x 170 mmConcentric 150200 mm Oslash 270 mm 270 x 270 mm - -

ImportantThe duct must comply with the air density requirements of the local regulations

Important

Only original components are authorised for connection to the boiler and for the terminalThe clear section must comply with the standardThe chimney must be swept before installing the discharge flue

CautionEnsure that the flue gas discharge pipes are securely attached to the wall with suitable retaining flanges to prevent any damage and guarantee the tightness of every gasket in the circuit

CautionThe minimum gradient of the condensates discharge pipe from the boiler to the waste water discharge must be 1 cm per linear metre

Fig22 Minimum dimensions of the duct or pipe C93 C93X

AD-3000330-03

D

Oslash

D

5 Installation

32 Gas 120 ACE 7717202 - v03 - 24062019

572 Lengths of the airflue gas pipes

The maximum lengths (Lmax) given in the table are valid for pipes in which the horizontal sections do not exceed one metre in total For each additional metre of horizontal pipe a multiplication coefficient of 12 must be applied when calculating the total length L The total length L is calculated by adding the lengths of the straight airflue gas pipes and the equivalent lengths of the other componentsAlways ensure that L is less than Lmax

ImportantFor the list of flue gas system accessories and the equivalent lengths refer to the current price list

Tab22 Lengths of the airflue gas pipes in metresConfigurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 100 mm 26 24 19

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 110 mm 40 40 40

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 110 mm 295 24 175

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 80125 mm - - -

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 100150 mm 9 8 59

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 80125 mm - - -

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 100150 mm 115 10 94

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 80125 mm over 2x80 mm

- - -

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 100150 mm over 2x100 mm

23 175 Air 11Flue gases 5

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm110 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 110150 mm110 mm

16 132 10

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 33

Configurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 110150 mm110 mm

165 135 94

Tab23 PPS pipe reduction for each element used

Diameter 80 mmSingle

80125 mmConcentric

100 mmSingle

100150 mmConcentric

45deg elbow 12 m 10 m 11 m 10 m87deg elbow 19 m 15 m 20 m 37 mStraight inspection tube 03 m 06 m - 10 m87deg inspection elbow 19 m 20 m 48 m -Inspection T 42 m 27 m 56 m 25 mInspection tube for flexible pipe 03 m - 05 m -

573 Dimensions of flue gas outlet pipe

WarningThe pipes connected to the flue gas adapter must satisfy the following dimension requirements

d1 External dimensions of flue gas outlet pipe

Tab24 Dimensions of pipe d1 (min-max)80 mm 793 - 803 mm100 mm 993 - 1003 mm150 mm 149 - 151 mm

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipe

Tab25 Dimensions of pipe d1 (min-max) D1 (min-max)8080 mm 793 - 803 mm 793 - 803 mm100100 mm 993 - 1003 mm 993 - 1003 mm110110 mm 1093 - 1103 mm 1093 - 1103 mm150150 mm 149 - 151 mm 149 - 151 mm

Fig23 Dimensions of open connection

AD-3001094-01

oslashd1

Fig24 Dimensions of parallel connection

AD-3000963-01

oslashd1 oslashD1

5 Installation

34 Gas 120 ACE 7717202 - v03 - 24062019

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipeL1 Length difference between flue gas outlet pipe and air supply pipe

Tab26 Dimensions of pipe d1 (min-max) D1 (min-max) L1

(1) (min-max)80125 mm 793 - 803 mm 124 - 1255 mm 0 - 15 mm100150 mm 993 - 1003 mm 149 - 151 mm 0 - 15 mm

(1) Shorten the inner pipe if the length difference is too great

574 Connection to the flue gas pipe

At delivery the flue gas outletair supply is fixed inside the boiler

1 Using a long tool unlock and remove the boilers front door2 Remove the boiler outlet

3 Two options for connection to the flue gas pipe

Option Description3a Connection to a vertical flue gas pipe Position the flue gas

outletair supply directly at the boiler outlet3b Connection to a horizontal flue gas pipe Insert an outlet elshy

bow ( not supplied) before the flue gas outletair supply

ImportantLubricate the gaskets on the flue system during assembly

Fig25 Dimensions of concentric connection

AD-3000962-01

oslashd1

L1

oslashD1

Fig26

MW-2000867-02

1

2

1

Fig27

3a 3b

MW-2000868-01

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 35

Fastening the coaxial pipes Fasten the intake pipes with two galvanised Oslash 42 mm screws with a maximum length of 16 mm

CautionBefore fixing the screws make sure that at least 45 cm of pipe is inserted in the gasket of the other pipe

WarningGuarantee a minimum pipe slope towards the boiler of at least 5 cm per metre

Fig28 Fastening the coaxial pipes using screws

BO-0000030

16 mm

5 Installation

36 Gas 120 ACE 7717202 - v03 - 24062019

6 Operation

61 Settings

To configure the installation and use the boiler please refer to the control unit manual

6 Operation

7717202 - v03 - 24062019 Gas 120 ACE 37

7 Maintenance

71 General

We recommend having the boiler inspected and serviced at regular intervals

CautionDo not neglect to service the boiler Contact a qualified professional or take out a maintenance contract for the obligatory annual servicing of the boilerFailure to service the appliance voids the warranty

Danger of electric shockBefore service work is started the boiler has to be de-energised and secured from accidentally being switched back on

CautionHave an inspection carried out and the flues swept at least once a year or more depending on the regulations in force in your country

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

CautionAfter maintenance or repair work check the entire heating system to ensure that there are no leaks

CautionOnly genuine spare parts may be used

72 Specific maintenance operations

721 Cleaning the siphon

1 Remove the flue gas outlet discharge pipe

2 Remove the condensate discharge pipe 3 Remove the screw from the siphon

Fig29

1

MW-2000903-01

Fig30

2

3

MW-2000904-01

7 Maintenance

38 Gas 120 ACE 7717202 - v03 - 24062019

4 Pull the siphon downwards to disengage it and pivot it to release it

5 Flush the siphon 6 Drain the siphon

7 Fill the siphon with clean water up to the mark 8 Lubricate the siphon gasket9 Re-engage the siphon and refit the screw

10 Refit the two pipes

722 Checking the ionisation current

1 Check the ionisation current at full load and at low loadThe value is stable after 1 minute

2 Clean or replace the ionisationignition electrode if the value is lower than 4 microA

Fig31

4

90deg

MW-2000905-01

Fig32

MW-2000843-01

Fig33

MW-2000844-01

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 39

723 Replace the ionizationignition electrode

The ionizationignition electrode must be replaced if

The ionization current is lt 4 microAThe electrode is damaged or worn

1 Remove the plug of the electrode from the igniter

ImportantThe ignition cable is fixed to the electrode and therefore may not be removed

2 Remove the two screws3 Remove the entire component4 Fit the new ionizationignition electrode with a new seal5 Reassemble the unit in the reverse order to disassembly

724 Servicing the forced flue connection pipes

1 Open the inspection hatches or remove the pipes2 Check that the air supply and discharge pipes are not blocked

If necessary clean the discharge pipe3 Check the tightness of the flue gas system4 Replace the tightness gaskets and if necessary any sections of pipe

until tightness is perfect

725 Checking the burner and cleaning the heat exchanger

1 Remove the air inlet flue on the venturi2 Loosen the gland on the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

Fig34

AD-0000088-01

4

1

2

3

Fig35 Removing the fan

AD-3001178-01

1

3

4

2

5

7 Maintenance

40 Gas 120 ACE 7717202 - v03 - 24062019

6 Remove the front plate from the heat exchanger7 Carefully lift the front plate including the burner and fan away from

the heat exchanger

8 Use a vacuum cleaner fitted with a special endpiece (accessory) to clean the top part of the heat exchanger (combustion chamber)

9 Vacuum again without the top brush on the end piece10 Clean the lower section of the heat exchanger with the special

cleaning blade (accessory)11 Check (eg using a mirror) whether any visible contamination has

been left behind If it has remove it with the vacuum cleaner12 Check that the burner cover of the dismantled burner is free from

cracks andor damage If not replace the burnerServicing the burner is usually not necessary it is self-cleaning Use compressed air to carefully blow away any dust

13 Reassemble the unit in reverse order

CautionRemember to reconnect the fan plugCheck that the gasket is correctly positioned between the mixing elbow and the heat exchanger (the gasket must lie absolutely flat in the appropriate groove to ensure that no gas can leak)Tighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the front plate nuts with a torque wrench to the firmness of 10 Nm

14 Open the gas supply and switch the power supply to the boiler back on

Fig36 Removing the front plate fan and burner

AD-3001179-01

6

7

Fig37 Cleaning the heat exchanger

AD-3001180-01

10

8 9

12

11

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 41

726 Checking the non-return valve

1 Remove the air inlet pipe from the venturi2 Unscrew the gland of the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

6 Dismantle the fan7 Remove the fan together with the gas valve unit8 Inspect the non-return valve and replace it in the event of a defect or

damage or if the maintenance kit contains a non-return valve9 Reassemble in the reverse order

CautionRemember to reconnect the fan plugTighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the two fan nuts with a torque wrench to the firmness of 38 Nm

Fig38 Disconnecting the fan

AD-3001178-01

1

3

4

2

5

Fig39 Checking the non-return valve

AD-3001181-01

2x

68

7

9

7 Maintenance

42 Gas 120 ACE 7717202 - v03 - 24062019

8 Decommissioning

81 Decommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

To switch off the boiler temporarily or permanently proceed as follows

1 Switch the boiler off2 Cut the electrical power to the boiler3 Close the gas valve on the boiler4 Drain the central heating system or ensure frost protection5 Close the door of the boiler to prevent air circulating inside it6 Remove the pipe connecting the boiler to the chimney and close the

nozzle with a plug

82 Recommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

Should it prove necessary to carry out the recommissioning of the boiler proceed as follows

1 Re-establish electrical power to the boiler2 Fit and check the flue gas pipe3 Fill the siphon with water4 Fill the central heating system5 Open the boiler gas valve6 Start up the boiler

8 Decommissioning

7717202 - v03 - 24062019 Gas 120 ACE 43

9 Disposal and recyclingCautionOnly qualified professionals are permitted to remove and dispose of the boiler in accordance with local and national regulations

If you need to remove the boiler proceed as follows

1 Switch off the boiler2 Cut the power supply to the boiler3 Close the main gas valve4 Close the water mains5 Close the gas valve on the boiler6 Drain the installation7 Remove the airflue gas pipes8 Disconnect all pipes9 Dismantle the boiler

Fig40

MW-3000179-03

9 Disposal and recycling

44 Gas 120 ACE 7717202 - v03 - 24062019

10 Environmental

101 Energy savings

Energy-saving advice

Do not block ventilation outletsDo not cover the radiators Do not hang curtains in front of the radiatorsInstall reflective panels behind the radiators to prevent heat lossesInsulate the pipes in rooms that are not heated (cellars and lofts)Close the radiators in rooms not in useDo not run hot (or cold) water pointlesslyInstall an energy-saving shower head which can save up to 40 energyTake showers rather than baths A bath consumes twice as much water and energy

102 Room thermostat and settings

Various models of room thermostat are available The type of thermostat used and the parameter selected impact total energy consumption

A modulating regulator which may be combined with thermostatic valves is eco-friendly in terms of energy and offers an excellent level of comfort This combination allows you to set the temperature separately for each room However do not install thermostatic radiator valves in the room in which the room thermostat is locatedComplete opening and closing of the thermostatic radiator valves causes undesirable variations in temperature Therefore these must be openedclosed progressivelySet the room thermostat to a temperature of approximately 20degC to reduce heating costs and energy consumptionLower the thermostat setting to approximately 16degC at night or when you are not at home This reduces heating costs and energy consumptionLower the thermostat setting well before airing the roomsSet the water temperature to a lower level in summer than in winter (eg 60degC and 80degC respectively) when an ONOFF thermostatis usedWhen clock thermostats and programmable thermostats are to be set do not forget to take any holidays and days when no one is at home into account

10 Environmental

7717202 - v03 - 24062019 Gas 120 ACE 45

11 Warranty

111 General

We would like to thank you for buying one of our appliances and for your trust in our productIn order to ensure continued safe and efficient operation we recommend that the product is regularly inspected and maintainedYour installer and our service department can assist with this

112 Terms of warranty

The following provisions do not affect the application in favour of the buyer of the legal provisions with regard to hidden defects that are applicable in the buyers countryThis appliance comes with a warranty that covers all manufacturing faults the warranty period will commence on the date of purchase stated on the installers invoiceThe warranty period is stated in our price listAs a manufacturer we can by no means be held liable if the appliance is used incorrectly is poorly maintained or not maintained at all or is not installed correctly (it is your responsibility to ensure that installation is carried out by a qualified installer)In particular we cannot be held liable for material damage intangible losses or physical injury resulting from an installation that does not comply with

Legal or regulatory requirements or provisions laid down by the local authoritiesNational or local regulations and special provisions relating to the installationOur manuals and installation instructions in particular in terms of regular maintenance of the appliances

Our warranty is limited to the replacement or repair of the parts found to be defective by our technical services team excluding labour transfer and transport costsOur warranty does not cover replacement or repair costs for parts that may become defective due to normal wear incorrect usage the intervention of unqualified third parties inadequate or insufficient supervision or maintenance a mains supply that is not appropriate or the use of unsuitable or poor quality fuelSmaller parts such as motors pumps electrical valves etc are guaranteed only if these parts have never been dismantledThe rights established in European Directive 9944EEC implemented by legal decree No 24 of 2 February 2002 and published in Official Journal No 57 of 8 March 2002 remain in force

11 Warranty

46 Gas 120 ACE 7717202 - v03 - 24062019

12 Spare parts

121 General

If inspection or maintenance work bring to light the need to replace a component in the boilerProvide the reference number given in the spare parts list when ordering a spare part

CautionOnly genuine spare parts may be used

122 Spare parts lists

1221 Exchanger

Fig41

MW-6000743-01

811x

7

7

4

2

16

3

10

119

65

1

13

12

18

14

19

15

18

17

Tab27

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

1 7699615 Complete exchanger x 1 7699614 Complete exchanger x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 47

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

2 S101564 Exchanger front plate x x x3 S54731 Exchanger inspection hatch insulation x x x4 S57241 Exchanger inspection hatch gasket x x x5 S100052 M4x10 self-locking screw (x20) x x x6 S54754 FURQ65 burner x 6 S57477 FURQ85 burner x x7 7623837 Set of 10 k NTC sensors x x x8 S54755 M6 nut (x20) x x x9 7659755 M4x10 screw (x10) x x x10 S53489 Electrode gasket (x10) x x x11 7692359 Ignition electrode x x x12 7631936 Flue gas flow pipe diameter 100 mm x x x13 7624643 NTC 2x20 k flue gas sensor with gasket x x x14 7624619 Ignition transformer x x x15 S56987 ZP M6x16 screw (x10) x x x16 7616253 Valve with support x x x17 7680596 Exchanger bracket x 17 7673616 Exchanger bracket x x18 7701752 Gasket diameter 100 mm (x5) x x x19 7632708 Earth electric clip (x2) x x x

1222 Gas circuit

Fig42

MW-6000744-01

3

2

5

6

9

4

8

10

7

12

11

1

14

13

13

12 Spare parts

48 Gas 120 ACE 7717202 - v03 - 24062019

Tab28Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 S101543 Silencer x 1 S101520 Silencer x 1 S101578 Silencer x2 S54777 Venturi gasket (x5) x 2 S59215 Gas valve-venturi gasket (x5) x 2 S101593 Gaskets (kit) x3 S101726 Fan RG 1481200-3633 x x 3 S100036 Fan RG 148 1200-3633-010202 x4 S101596 Gas valve VK4115v1386 x 4 S101597 Gas valve VK4115vb1012 x 4 S101510 Gas valve GB-ND 057 XP x5 S54766 Venturi x 5 S57488 Venturi x 5 S101595 Venturi VMS 45900450-010 x6 S59215 Gas valve-venturi gasket (x5) x x 7 S57827 Gas valve unit flange x8 S57828 268x22x25 O-ring (x5) x9 S101631 Diaphragm x10 7616249 Flue gas sensor cap (5x) x x x11 S56155 238x177x2 gasket (x20) x x x12 95760050 C HC M4-12 88 ZN3 screw x x x13 S48512 M5-10 screw (x10) x x x14 S101590 Silencer retaining clip x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 49

1223 Hydraulic circuit

Fig43

MW-6000745-01

1

14

6

9

11

8

12

5

37

9

10

2

4

13

Tab29Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7680598 Complete flow pipe x 1 7670807 Complete flow pipe x x2 7672557 Complete return pipe x x x3 7674076 Complete gas pipe x 3 7680434 Complete gas pipe x 3 7670720 Complete gas pipe x4 7698560 HUBA G38 pressure gauge x x x5 94994712 PVC pipe diameter 16x12 x x x6 7699357 Water deflector diameter 100 mm x x x7 94902073 Drain valve 12 x x x8 94918138 Air vent x x x9 95013064 44x32x2 mm green gasket x x x10 95013060 24x17x2 mm green gasket x x 10 95013062 30x21x12 mm green gasket x11 7692329 Condensate hose x x x13 7706103 Assembled siphon height 160 mm x 13 7706038 Assembled siphon height 250 mm x x14 7103731 Condensate drain pan gasket x x x

12 Spare parts

50 Gas 120 ACE 7717202 - v03 - 24062019

1224 Boiler body

Fig44

MW-6000746-01

2

2

1

6

3

34

5

4

Tab30Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7686377 Assembled frame x 1 7686139 Assembled frame x x2 7679958 117x34 handle diameter 65 mm x x x3 7676037 Wheel x x x4 7688301 Frame lateral gasket x 4 7688008 Frame lateral gasket x x5 7688353 Front panel gasket x 5 7688007 Front panel gasket x x6 7693874 R4-05 front panel lock x x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 51

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

E toimistoestsystemsfi

Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 4: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

7 Maintenance 3871 General 3872 Specific maintenance operations 38

721 Cleaning the siphon 38722 Checking the ionisation current 39723 Replace the ionizationignition electrode 40724 Servicing the forced flue connection pipes 40725 Checking the burner and cleaning the heat exchanger 40726 Checking the non-return valve 42

8 Decommissioning 4381 Decommissioning procedure 4382 Recommissioning procedure 43

9 Disposal and recycling 44

10 Environmental 45101 Energy savings 45102 Room thermostat and settings 45

11 Warranty 46111 General 46112 Terms of warranty 46

12 Spare parts 47121 General 47122 Spare parts lists 47

1221 Exchanger 471222 Gas circuit 481223 Hydraulic circuit 501224 Boiler body 511225 Casing 521226 Boiler PCB housing 53

13 Appendix 54131 Package fiche - Boilers 54132 Product fiche - Temperature Controls 55133 Product fiche 55

Contents

4 Gas 120 ACE 7717202 - v03 - 24062019

1 Safety

11 General safety instructions

For the installer and end user

DangerThis appliance can be used by children aged from 8 years and above and persons with reduced physical sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved Children shall not play with the appliance Cleaning and user maintenance shall not be made by children without supervision

CautionDo not touch the flue gas pipes Depending on the boiler settings the temperature of the flue gas pipes can rise to over 60degC

CautionDo not touch radiators for long periods Depending on the boiler settings the temperature of the radiators may exceed 60degC

CautionTake precautions with the domestic hot water Depending on the boiler settings the domestic hot water temperature may exceed 65degC

Danger of electric shockBefore any work switch off the mains supply to the boiler

For the installer

1 Safety

7717202 - v03 - 24062019 Gas 120 ACE 5

DangerIf you smell gas1 Do not use a naked flame do not smoke do

not operate electrical contacts or switches (doorbell light motor lift etc)

2 Shut off the gas supply3 Open the windows4 Locate the probable leak and seal it

immediately5 If the leak is before the gas meter contact the

gas supplier

DangerIf you smell flue gases1 Switch off the appliance2 Open the windows3 Locate the probable source of the flue gas

leak and fix it immediately

WarningThe condensation drain must not be changed or sealed If a condensate neutralisation system is used the system must be cleaned regularly in accordance with the instructions provided by the manufacturer

For the end user

DangerIf you smell gas1 Do not use a naked flame do not smoke do

not operate electrical contacts or switches (doorbell light motor lift etc)

2 Shut off the gas supply3 Open the windows4 Evacuate the property5 Contact a qualified professional

DangerIf you smell flue gases1 Switch off the appliance2 Open the windows3 Evacuate the property4 Contact a qualified professional

1 Safety

6 Gas 120 ACE 7717202 - v03 - 24062019

12 Recommendations

DangerFor safety reasons we recommend fitting smoke and CO2 detectors and alarms at suitable places in your home

CautionThe boiler must always be connected to the protective earthingEarthing must comply with the prevailing installation standardsEarth the appliance before making any electrical connections

For the type and calibre of the protective equipment refer to the chapter Electrical Connections in the Installation and Service Manual

CautionIf a power cord comes with the appliance and it turns out to be damaged it must be replaced by the manufacturer its after sales service or persons with similar qualifications in order to obviate any danger

CautionA disconnection device must be fitted to the permanent pipes in accordance with the installation rules

CautionPower the appliance via a circuit that includes an omni-polar switch with contact opening distance of 3 mm or more

CautionDrain the boiler and heating system if the home is left empty for a long period of time and there is a chance of frost

CautionRemove the boiler casing only to perform maintenance and repair work Always put the casing back in place after such work

CautionTo enjoy warranty cover no modifications must be made to the boiler

1 Safety

7717202 - v03 - 24062019 Gas 120 ACE 7

CautionThe frost protection function only protects the boiler not the heating system

CautionThe frost protection function does not work if the boiler is powered off

CautionThe appliance should be switched to Summer or Frost Protection mode rather than be switched off in order to guarantee the following functions

Avoidance of pumps blockingFrost Protection

ImportantRespect the minimum and maximum water inlet pressure to ensure correct operation of the boiler refer to the chapter Technical Specifications

ImportantOnly qualified professionals are permitted to install the boiler in accordance with prevailing local and national regulations

ImportantNever remove or cover labels and data plates affixed to the boilerLabels and data plates must be legible throughout the entire lifetime of the boiler Immediately replace damaged or illegible instructions and warning labels

ImportantKeep this document close to the place where the appliance is installed

13 Liabilities

131 Manufacturers liability

Our products are manufactured in compliance with the requirements of the various Directives applicable They are therefore delivered with the marking and any documents necessary In the interests of the quality of our products we strive constantly to improve them We therefore reserve the right to modify the specifications given in this documentOur liability as manufacturer may not be invoked in the following cases

1 Safety

8 Gas 120 ACE 7717202 - v03 - 24062019

Failure to abide by the instructions on installing and maintaining the applianceFailure to abide by the instructions on using the applianceFaulty or insufficient maintenance of the appliance

132 Installers liability

The installer is responsible for the installation and initial commissioning of the appliance The installer must observe the following instructions

Read and follow the instructions given in the manuals provided with the applianceInstall the appliance in compliance with prevailing legislation and standardsCarry out initial commissioning and any checks necessaryExplain the installation to the userIf maintenance is necessary warn the user of the obligation to check the appliance and keep it in good working orderGive all the instruction manuals to the user

133 Users liability

To guarantee optimum operation of the system you must abide by the following instructions

Read and follow the instructions given in the manuals provided with the applianceCall on a qualified professional to carry out installation and initial commissioningGet your installer to explain your installation to youHave the required inspections and maintenance carried out by a qualified installerKeep the instruction manuals in good condition close to the appliance

1 Safety

7717202 - v03 - 24062019 Gas 120 ACE 9

2 Symbols used

21 Symbols used in the manual

This manual uses various danger levels to draw attention to special instructions We do this to improve user safety to prevent problems and to guarantee correct operation of the appliance

DangerRisk of dangerous situations that may result in serious personal injury

Danger of electric shockRisk of electric shock

WarningRisk of dangerous situations that may result in minor personal injury

CautionRisk of material damage

ImportantPlease note important information

SeeReference to other manuals or pages in this manual

22 Symbols used on the appliance

1 Alternating current2 Protective earthing3 Before installing and commissioning the appliance carefully read

the instruction manuals provided4 Dispose of used products through an appropriate recovery and

recycling structure5 Caution danger of electric shock live parts Disconnect the mains

power prior to carrying out any work

Fig1

1 2

MW-2000068-1

1

2

3

4

5

2 Symbols used

10 Gas 120 ACE 7717202 - v03 - 24062019

3 Technical specifications

31 Homologations

311 Directives

This product has been manufactured and put into circulation in accordance with the requirements and standards of the following European Directives

Gas Appliances Regulation (EU) (2016426)

Pressure Equipment Directive 201468EU

Electromagnetic Compatibility Directive (201430EU)

Low Voltage Directive (201435EU)

Efficiency Directive (9242EEC)

European Ecodesign Directive (2009125EC)EU Regulation (8132013)

Energy Labelling Framework Regulation (EU) (20171369)EU Regulation (8112013)

BS 7074 Part 1 Application selection and installation of expansion vessels and ancillary equipment for sealed water systemsBS 6644 Specification for the installation of gas-fired condensing boilers with a nominal output exceeding 70 kWBS EN 12828 Design for water-based heating systemsBS EN 13831 Closed expansion vessels

Apart from the legal provisions and Directives the additional Directives described in these instructions must also be observedFor all provisions and Directives referred to in these instructions it is agreed that all addenda or subsequent provisions will apply at the time of installation

312 EC Declaration of Conformity

The unit complies with the standard type described in the EC declaration of conformity It has been manufactured and commissioned in accordance with European directivesThe original declaration of conformity is available from the manufacturer

313 Gas categories

Tab1 Czech Republic Spain Greece Portugal Switzerland UK

Category Gas type Connection pressure (mbar) Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

II2H3BP G20 (H gas) 20 X X X G30G31 (butanepropane) 303750 X X X

314 Certifications

Tab2 CertificationsCE number 0085CT0009NOx class 6 (EN 15502-1)

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 11

Type of flue gas connection Chimney

B23B23PB33

Forced flue

C13C13XC33C33XC43C43XC53C63C63XC83C83XC93C93X

315 Factory test

Before leaving the factory each boiler is optimally set and tested for

Electrical safetySettings (CO2)Water tightnessGas tightnessParameter setting

32 Technical data

Tab3 GeneralGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Nominal heat output (Pn)Central heating operation (80 degC60 degC)

minndashmax kW 120 - 615 141 - 842 189 - 1039

Nominal heat output (Pn)Central heating operation (50 degC30 degC)

minndashmax kW 135 - 650 158 - 895 212 - 1097

Nominal input power (Qn)Heating mode (Hi)

minndashmax kW 122 - 620 146 - 860 196 - 1070

Nominal input power (Qn)Heating operation (Hi) G31 (propane)

minndashmax kW 122 - 620 221 - 860 212 - 1070

Nominal input power (Qn)Central heating operation (Hs)

minndashmax kW 137 - 689 162 - 955 217 - 1189

Full load heating mode efficiency (Hi) (8060 degC) (9242EEC)

992 979 971

Full load heating mode efficiency (Hi) (50 degC30 degC)

1046 1041 1025

Part load heating mode efficiency (9242EEC) (return temperature 30 degC)

1104 1081 108

Tab4 Gas and flue gas valuesGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115G20 gas consumption (H gas)(1) minndashmax m3h 13 - 66 15 - 91 20 - 117Gas consumption G31 (propane)(1)

minndashmax m3h 05 - 25 09 - 35 09 - 45

3 Technical specifications

12 Gas 120 ACE 7717202 - v03 - 24062019

Gas 120 ACE Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

Gas resistance G20 (H gas)(2) max mbar 20 25 30BREAM NOx mgkWh 32 29 35Flue gas quantity minndashmax m3h 18 - 90 22 - 125 30 - 160Flue gas temperature minndashmax degC 30 - 120 30 - 120 30 - 120Maximum counter pressure (Pn) Pa 100 160 220

(1) Gas consumption based on lower heating value in standardised conditions T=28815 K p=101325 mbar Gag 3033 G25 2925 G31 8800 MJm3

(2) Gas resistance between boiler connection and measurement point on the gas valve unit

Tab5Gas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Gas inlet pressure G20 (H gas) minndashmax mbar 17 - 25 17 - 25 17 - 25G30G31 gas inlet pressure (ButanePropane) minndashmax mbar 37 - 50 37 - 50 37 - 50G31 gas inlet pressure (Propane) minndashmax mbar 37 - 50 37 - 50 37 - 50

Tab6 Central heating circuit dataGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Water content l 71 101 101Water operating pressure min bar 08 08 08Water operating pressure (MOP) max bar 40 40 40Water temperature max degC 110 110 110Operating temperature max degC 90 90 90Pressure drop secondary circuit (ΔT = 20 K) mWC 17 16 26Maximum permitted temperature difference(1) max degC 40(1) 40(1) 35(1)

(1) with a maximum flow temperature of 80 degC

Tab7 Electrical dataGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Supply voltage (AC) V 230 230 230Power consumption ndash full load max W 92 124 180Power consumption - low load max W 25 24 344Power consumption ndash standby max W 6 5 9Electrical protection rating IP X1B X1B X1BFuses Main A 10 10 10

Tab8 Other dataGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Total weight (empty) kg 98 109 109Average acoustic level at a distance of one meshytre from the boiler

dB(A) 40 45 45

SeeThe back cover for contact details

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 13

321 ErP technical parameters

Tab9 Technical parameters for boiler space heatersProduct name Gas 120 ACE

- 65Gas 120 ACE - 90

Gas 120 ACE - 115

Condensing boiler Yes Yes YesLow-temperature boiler(1) No No NoB1 boiler No No NoCogeneration space heater No No NoCombination heater No No NoRated heat output Prated kW 62 84 104

Useful heat output at rated heat output and high temperature regime(2)

P4 kW 615 842 1039

Useful heat output at 30 of rated heat output and low temperature regime(1)

P1 kW 205 279 347

Seasonal space heating energy efficiency ƞs 94 - -Useful efficiency at rated heat output and high temperature regime(2)

ƞ4 894 882 875

Useful efficiency at 30 of rated heat output and low temperature regime(1)

ƞ1 995 974 973

Auxiliary electricity consumption Full load elmax kW 0092 0124 0180Part load elmin kW 0025 0024 0034Stand-by PSB kW 0006 0005 0009

Other specifications Standby heat loss Pstby kW 0114 0119 0119Ignition burner power consumption Pign kW - - -Annual energy consumption QHE GJ 190 - -Sound power level indoors LWA dB 55 61 60Emissions of nitrogen oxides NOx mgkWh 29 41 41(1) Low temperature means for condensing boilers 30degC for low temperature boilers 37degC and for other heaters 50degC return temperature

(at heater inlet)(2) High temperature regime means 60 degC return temperature at heater inlet and 80 degC feed temperature at heater outlet

SeeThe back cover for contact details

322 Circulating pump (not provided)

The boiler is supplied without a circulating pump Take the boiler pressure drop and system pressure drop into account when selecting a pump

CautionThe maximum output of a pump that can be connected is 200 W Above this use an auxiliary relay adapted to the pump output

If possible install the pump in direct connection to the boiler on the return circuit

For more information see

Circulating pump

The maximum difference in temperature between the flow water and the return water and the speed at which the boiler temperature increases are restricted by the boilers control system

3 Technical specifications

14 Gas 120 ACE 7717202 - v03 - 24062019

Tab10 Minimum flow to be guaranteedMinimum flow to be guaranteed in the boiler Unit Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Minimum flow rate litreshour 290 340 455

A Dynamic head in mWcB Water flow rate (m3h)C Pressure drops

ΔT Maximum temperature difference between the flow water and the return water in the boiler

A Dynamic head in mWcB Water flow rate (m3h)C Pressure drops

ΔT Maximum temperature difference between the flow water and the return water in the boiler

A Dynamic head in mWcB Water flow rate (m3h)C Pressure drops

ΔT Maximum temperature difference between the flow water and the return water in the boiler

323 Sensor specifications

Outside temperature sensor specifications

Tab11 Outside temperature sensorTemperature degC -20 -16 -12 -8 -4 0 4 8 12 16 20 24Resistance Ω

(Ohm)2392 2088 1811 1562 1342 1149 984 842 720 616 528 454

Fig2 Pressure drops for Gas 120 ACE - 65

MW-2000671-3

T=20KT=40K

175

Fig3 Pressure drops for Gas 120 ACE - 90

MW-2000673-3

T=20KT=40K

362

Fig4 Pressure drops for Gas 120 ACE - 115

MW-2000674-3

T=20KT=35K

447

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 15

Boiler sensor return sensor

Tab12 Boiler sensor return sensorTemperature in degC

-20 -10 0 10 20 25 30 40 50 60 70 80 90 100 110

Resistance in Ω

98932 58879 36129 22804 14773 10000 9804 6652 4607 3252 2337 1707 1266 952 726

Circuit flow sensor domestic hot water sensor and system sensor

Tab13 Circuit flow sensor domestic hot water sensor and system sensorTemperature in degC 0 10 20 25 30 40 50 60 70 80 90Resistance in Ω 32014 19691 12474 10000 8080 5372 3661 2535 1794 1290 941

Specifications of the boiler flue gas sensor

Tab14 Boiler flue gas sensorTemperature degC 0 10 20 30 40 50 60 70 80 90 100Resistance Ohm 66000 40000 20000 16100 10600 7160 4940 3480 2490 1810 1340

33 Dimensions and connections

Fig5

MW-2000684-03

A

D

E

FG

BC

600 605150

92

132

240

141

418

5

2

34

107

105

95

100

1

255145

1 Heating circuit flow (R114)2 Gas inlet (G34)3 Heating circuit return (R114)

4 Condensate discharge (DN22)5 Flue gas pipe

Tab15 Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 1155 Diameter 100150 mm Diameter 100150 mm Diameter 100150 mmA (mm) 1340 1562 1562B (mm) 1164 1386 1386C (mm) 1082 1304 1304D (mm) 971 1193 1193

3 Technical specifications

16 Gas 120 ACE 7717202 - v03 - 24062019

Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 115E (mm) 410 632 632F (mm) 87 303 303G (mm) 128 350 350

34 Electrical diagram

341 Electrical diagram of boiler

Fig6

CU-GH-08

X3X4X5

X6

X8

1

2

3

1

2

3

X14

X7

X10

X11

X13

X12

1

2

3

4

5

25 A

Nrsquo

1

2

3

4

YE

GY

BR

GR

1

2

3

4

1

2

3

4

1

2

N L

1

2

1

2

OPTION

PRESSURE

SWITCH

MW-2000850-04

230V

1 2 3 4 5 6 7 8 9 10

24V

12 11

BL OR

10 9 8 7 6

GR BK RE YE BL

5 4 3 2 1

OR BK RE YE BL

Lrsquo

BL

GY

GY

GY

BL BR

GY

BL

BR

GY BL

BR

GY

BR

GR BK RE YE BL OR BK RE YE BL

BK

BL

BR

RE

GR

GR

BK

GR

GY

YE

BR

BL

OR

1

2

3

4

5

1

2

3

RE

BK

GR

BR

BK

BL

GR

1

2

BR

GR

GY

RE BL

BL

BK

BK

BR YE

GR PI

BL

BL

GR

PI

GR

RE

BR

YE

BK

BK

BR

GY

BL

BL

BR

GY

GY

BR

BL BL GY

BR

BL

BR

BK

GYWH

GY

BL

GY

BL

BR

BK

WH

BL

GY

1 12

4

5

2

3

6

7

8

9

10

11

16

17

15

14

13

1 230 V connector connection with control unit2 Mains interference filter3 Earthing of boiler front door4 Return sensor (TR)5 Flow sensor (FTS)6 Flue gas sensor7 Flue gas pressure switch (specific option for the

Netherlands)8 Gas valve unit (GB)9 Igniter (IT)

10 Ionizationignition electrode (E)11 Fan supply12 24 V connector connection with control unit13 Storage information (CSU)14 Pressure sensor (PS)15 Fan control (PWM)16 Light17 Control unit (CU-GH08)BK BlackBL Blue

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 17

BR BrownGY GreenYellowYE YellowOR OrangeGR Green

PI PinkGY GreyRD RedWH White

3 Technical specifications

18 Gas 120 ACE 7717202 - v03 - 24062019

4 Description of the product

41 General description

Gas 120 ACE floor-standing condensing gas boilers have the following characteristics

Low polluting emissionsHigh-efficiency heatingElectronic control panelFlue gas discharge by a forced flue or chimney type connection with bi-flow option

The boilers are perfectly suited to cascade installation

42 Operating principle

421 Gasair setting

The casing fitted to the boiler is also used as an air box Air is drawn in by the fan and gas injected into the Venturi by the fan intake The fan speed is modulated according to the settings the heat demand and the actual temperatures measured by the temperature sensors The gas and air are mixed in the Venturi The gasair ratio command function accurately adjusts the quantities of gas and air required This provides optimum combustion over the entire output range The gasair mixture is sent to the burner located upstream of the heat exchanger

422 Settings and safety devices

ImportantThe settings and safety devices are only operational if the boiler is powered up

Tab16 Description of the safety devicesDevice DescriptionNTC flue gas sensor The control panel blocks the gas supply to the burner in the event of overheatingFlame detector by ionisation The boiler is put into safety lock-down in the event of gas shortage or incomplete cross-

lighting on the burnerHydraulic pressure switch When the pressure switch detects a pressure lower than 08 bar (008 MPa) a warning

message is displayed without stopping the circulating pumpPost-circulating pump After the burner stops depending on the room thermostat setting and if in heating

mode the circulating pump runs for a further 3 minutesFrost protection device When the flow temperature is lower than 5 degC the burner starts up and runs until the

flow temperature reaches 15 degC This device runs under the following conditions

The boiler is switched onThe gas supply is workingThe pressure in the system is higher than 05 bar (005 MPa)

Anti-blocking of the pump If there are no heating or domestic hot water requirements for 24 consecutive hours the pumps start up automatically and run for 10 seconds

Anticipatory start-up of the circulatshying pumps

In heating mode only the appliance can start up the circulating pumps before burner igshynition The duration and activation of anticipatory start-up depends on the installation reshyquirements and the operating temperatures The duration of anticipatory start-up of the circulating pumps therefore varies from a few seconds to several minutes

4 Description of the product

7717202 - v03 - 24062019 Gas 120 ACE 19

43 Main boiler components

1 Control unit2 Flow sensor3 Light4 Ignitionionization electrode5 Non-return valve6 Gas valve7 Heat exchanger (heating circuit)8 Return sensor9 Pressure gauge sensor

10 CU-GH-08 PCB housing11 Siphon12 Flue gas circuit13 Intake silencer14 Venturi15 Flue gas sensor16 Fan17 Automatic air vent18 Flue gas measuring point19 Combustion air measuring point20 Flue gas outletair supply

44 PCBs

441 Description of the CU-GH-08 PCB

This PCB controls the core boiler components sensors actuators and gas valveThis PCB is factory-fitted and fully cabled and does not require any operationThe sensors valves circulating pumps etc are connected at the control unit

45 Standard delivery

The Gas 120 ACE boiler comes in 2 packages including

Tab17 Package contentsPackage ContentPackage 1 A floor-standing gas boiler

A flue system outlet with a measuring point (stored in the boiler)An outdoor temperature sensorA data plateAn installation and service manual

Package 2 A control unitTwo control unit mounting bolts on the boilerA user manual

46 Accessories amp options

A detailed list of accessories and options can be found in our catalogue

Fig7

MW-2000670-02

16

7 13

12

11

10

19

18

20

17

14

15

6

5

2

9

4

3

1

8

4 Description of the product

20 Gas 120 ACE 7717202 - v03 - 24062019

5 Installation

51 Installation regulations

CautionInstallation of the boiler must be done by a qualified professional in accordance with prevailing local and national regulations

CautionA disconnection device must be fitted to the permanent pipes in accordance with the installation rules

CautionRespect the maximum water inlet pressure to ensure correct operation of the appliance referring to the Technical Specifications chapter

52 Choice of the location

Decide on the ideal position for installation bearing in mind any legal directives and the space required by the appliance

Install the boiler on a solid stable structure capable of bearing the weight of the appliance when full of water and fully equippedWhen choosing the position for installation of the boiler bear in mind the positions authorised for the combustion gas discharge outlets and the air intake ventDo not install the boiler near any heat sources

521 Data plate

The data plate is located on the back of the boilerThe data plate provides important information regarding the appliance

Serial numberModelGas categoryCN1CN2etc

Once installation is complete the second data plate supplied in the documentation bag can be affixed to a more visible part of the boilerIf the boiler is equipped with a hydraulic kit (low-loss header or plate heat exchanger) affix the data plate to the side of the boiler

522 Space required - Boiler ventilation

Decide on the ideal position for installation bearing in mind any legal directives and the space required by the appliance

Install the boiler on a solid stable structure capable of bearing the weight of the appliance when full of water and fully equippedWhen choosing the position for installation of the boiler bear in mind the positions authorised for the combustion gas discharge outlets and the air intake ventDo not install the boiler near any heat sources

Fig8

MW-6000735-01

Made in France0085

CN1 17

CN2 7

230 V 50 Hz

B23(P) - B33 - C13(X) - C33(X) - C43(X) - C53 - C63(X) - C83(X) - C93(X)

PMS= 4bar - 04MPa

Pn =

8060 degC

5030 degC

NOx class 6 (Nox lt 56 mgkWh)

Qn =Hi kW

4030 degC

189-1039

196-1070

212-1097

180W

0085CT009

Hs (G20) 217-1189

IP21Imax= 10A

Tmax= 90degC

FR

LT

IT

AT

CZ

PL

II2Esi3BP

II2H3BP

II2H3BP

II2H3BP

II2H3P

II2H3BP

II2H3BP

II2ELw3BP

G20-20mbar G25-25mbar G30G31-303750mbar

G20-20mbar G30G31 - 30mbar

G20-20mbar G30G31 - 303750 mbar

G20-20mbar G30G31 - 3037mbar

G20-20mbar G31 - 30mbar

G20-20mbar G30G31 - 50mbar

G20-20mbar G30G31-303750mbar

G20-20mbar G27-20mbar G3031-37mbar

kW

Art Nr SN A0000YYWW000

kW

kW

kW

kW

kW

ESGR PT

LU RO EE

YY-WW

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 21

Keep the boiler accessible at all timesPlace the boiler on a base to make it easier to clean the roomThe boiler can be located along a partition on one of its sides provided there is a 500 mm space on the opposite sideAllow enough space around the boiler to facilitate accessibility and maintenance The minimum recommended dimensions are shown in the illustrationMake sure there is a connection to the water drainage system close to the boiler to discharge any condensates

ImportantTo fit the boiler position the pallet with the package 25 m in front of the desired location for the installation This distance is required to allow the boiler to be removed from its pallet

Tab18Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 115

A (mm) 500 500 500B (mm) 1082 1304 1304

To allow the intake of combustion air sufficient ventilation must be provided in the boiler room the cross section and position of which must satisfy the regulations in force

Great Britain BS 5440 Part 1 and Part 2

For boilers with a nominal output of more than 70 kW Upper and lower air vents comshypulsory

BS 6644 and IGEMUP-10

Caution

Avoid any low points in the flue gas and condensate discharge circuit in order to prevent any accumulation of condensatesDo not block the air inlets in the room or the combustion product evacuation or condensation water flow pipes (even partially)

If the boiler is installed in closed premises respect the minimum dimensions given in the diagram below Also allow for openings to obviate the following hazards

Accumulation of gasOverheating of the premisesGreat Britain Minimum cross section of openings see BS 5440 Part 1 and Part 2 and BS 6644

523 Ventilation

To allow the intake of combustion air sufficient ventilation must be provided in the boiler room for which the cross section and position must satisfy the regulations in force in the country in which the boiler is installed

Great Britain BS 5440 Part 1 and Part 2

For boilers with a nominal output of more than 70 kW Upper and lower air vents comshypulsory

BS 6644 and IGEMUP-10

Fig9

MW-2000679-03

500

B

1100

AS1

S2

260

580

350

600

500

5 Installation

22 Gas 120 ACE 7717202 - v03 - 24062019

If the boiler is installed in closed premises respect the minimum dimensions given in the diagram below Also allow for openings to obviate the following hazards

Accumulation of gasOverheating of the premisesGreat Britain Minimum cross section of openings see BS 5440 Part 1 and Part 2 and BS 6644

524 Fitting the outdoor sensor

Plugs diameter 4 mmdrill diameter 6 mm

1 Choose a recommended location for the outdoor sensor2 Put the 2 plugs in place delivered with the sensor3 Secure the sensor using the screws provided (diameter 4 mm)4 Connect the cable to the outdoor temperature sensor

Recommended positions

Place the outside sensor in a position that covers the following characteristics

On a faccedilade of the area to be heated on the north if possibleHalf way up the wall of the area to be heatedUnder the influence of changes in the weatherProtected from direct sunlightEasy to access

Fig11

MW-8800N001-3

2

1

2

11

2

H

12 H (min 25 m)

12 H (min 25 m)

12 Z

H

Z

1 Optimum location2 Possible position

H Inhabited height controlled by the sensorZ Inhabited area controlled by the sensor

Positions to be avoided

Avoid placing the outside sensor in a position with the following characteristics

Masked by part of the building (balcony roof etc)Close to a disruptive heat source (sun chimney ventilation grid etc)

Fig10

MW-8800N003-6

23

4

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 23

Fig12

MW-3000014-2

53 Transport

Transport the boiler pallet with a manual or electric pallet truck

54 Unpacking and preparing the boiler

Caution

Wear gloves to handle the boilerTransport the boiler pallet with a manual or electric pallet truckUse carrying bars (not provided) to move the boiler

ImportantTo fit the boiler position the pallet with the package 25 m in front of the desired location for the installation This distance is required to allow the boiler to be removed from its pallet

1 Cut the packaging2 Remove the packaging from the boiler but leave the boiler on the

shipping pallet

ImportantThe documentation bag (user manual + accessories) is contained in the protective block

Fig13

MW-6000736-01

Manual

11

12

5 Installation

24 Gas 120 ACE 7717202 - v03 - 24062019

3 Using a long tool unlock and remove the boilers front door Disconnect the earth wire

4 Remove the mounting bolts from the unloading ramps and the boiler (4 bolts at the rear and 4 bolts at the front)

5 Pull out the unloading ramps and turn them over6 Align the ramps with the rear castor wheels on the boiler

Fig14

MW-6000761-01

3

3

Fig15

MW-6000737-01

4

4

Fig16

MW-6000738-01

5

5

6

6

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 25

7 Lock the ramps correctly onto the pallet8 Screw the unloading ramps onto the pallet9 Fold down the ends of the ramp so that they rest on the ground

10 Tilt the boiler backwards until it is resting on the castor wheels then remove it from the pallet

11 Recycle the pallet

Fig17

MW-6000770-01

9

9

8

7

Fig18

MW-6000739-02

600

350

11

10

550

5 Installation

26 Gas 120 ACE 7717202 - v03 - 24062019

12 Level the boiler using the adjustable feet(1) Factory setting 30 mm adjustment range 20 to 40 mm

CautionThe rear castor wheels must no longer be in contact with the ground

55 Hydraulic connections

551 Water treatment

In many cases the boiler and the heating system can be filled with mains water without treating the water

CautionDo not add any chemical products to the heating water without first consulting a water treatment specialist For example antifreeze water softeners products to increase or reduce the pH value chemical additives andor inhibitors These may cause faults in the boiler and damage the heat exchanger

Important

Flush the installation with at least 3 times the volume of water contained in the heating systemFlush the DHW circuit with at least 20 times its volume of water

The water in the installation must comply with following specifications

Tab19 Installation water specifications Initial commissioning Concentration (top up)Degree of acidity (untreated water) pH 65 - 85 65 - 85

Degree of acidity (treated washyter) pH 70 - 90 70 - 90

Conductivity at 25degC μScm le 500 le 500Chlorides mglitre le 50 le 50Other components mglitre lt 1 lt 1

Total water hardnessdegf 5 - 35 le 15degdH 28 - 200 le 85mmollitre(1) 05 - 35 lt 15

(1) Flow temperature less than 90degC mdash Maximum hardness 150 mmoll

Fig19

MW-6000773-01

(1)

12

12

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 27

ImportantIf water treatment proves necessary Remeha recommends the following manufacturers

CillitClimalifeFernoxPermoSentinel

552 Flushing new installations and installations less than 6 months old

Before filling the heating installation it is essential to remove any debris (copper caulking soldering flux) from the installation

1 Clean the installation with a powerful universal cleaner2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

553 Flushing an existing installation

Before filling the heating installation it is essential to remove any sludge deposits which have accumulated in the heating circuit over the years

1 Remove any sludge from the installation2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

554 Connecting the heating circuit

ImportantAbide by the information shown in the hydraulic diagrams

The pipes are not provided

Caution

The heating pipe must be mounted in accordance with the provisions applicableIf installing stop valves position the filldrain valve and the expansion vessel between the stop valves and the boilerAlways install a safety valve calibrated to a maximum of 4 bar on the heating circuit The safety valve can be connected to a venting pot The safety valve must not be used to drain the heating circuitIt is recommended to install a sludge collector on all installations

SeeIf fitting with a hydraulic kit (low-loss header or plate heat exchanger) refer to the kit manual

555 Connecting the condensate discharge pipe

Use a neutralisation station to achieve a pH value of more than 65 (in accordance with prevailing regulations)Discharge the condensates directly into the mains drainage system via a siphon In view of the acidity level (pH 25 to 3) only condensate discharge pipes made from compatible plastic should be used

5 Installation

28 Gas 120 ACE 7717202 - v03 - 24062019

The condensate discharge pipe is located at the rear of the boiler

Do not block the condensate discharge pipeTilt the discharge pipe by at least 30 mm per metre and make sure there are no low points that could cause the accumulation of water or deposits Maximum horizontal length 5 metresDo not drain condensation water into a roof gutterConnect the condensate discharge pipe in accordance with prevailing standardsIt is preferable to use the condensate neutralisers recommended by the manufacturer of the boiler

1 Connect a plastic hose to the condensate discharge outlet (DN 22)2 Insert the other end of the hose into a waste water discharge outlet

556 Filling the siphon

DangerIf operating with the siphon empty combustion products will escape into the premises in which the boiler is installed

1 Pour water into the flue gas pipe (central pipe) until it flows out of the condensate discharge pipe

56 Gas connection

Danger

Close the main gas valve before starting work on the gas pipesThe diameters of the pipes must be defined in accordance with the standards in force in your countryConnect the gas pipe in accordance with prevailing standards and regulationsEnsure that there is no dust in the gas pipe

The gas pipes are not providedIn old gas networks we recommend fitting a gas filter with a low pressure drop upstream of this point

1 Clean the gas supply pipe2 Remove the anti-dust plug located on the boilers gas inlet3 Mount a gas stop valve (not provided) on the boilers gas inlet4 Connect the gas inlet pipe to the gas stop valve

Fig20

MW-2000825-01

pH gt 65

Oslash32A

Fig21

MW-6000742-02

1

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 29

5 Close the gas supply valve before testing the pressure on the gas supply pipe to avoid damage caused by excessive pressure on the gas regulator Decompress before reopening the valve

561 Gas supply

Before mounting check that the gas meter has sufficient capacity (in m3h) To do this you should bear in mind the consumption of all appliances If the capacity of the gas meter is too low inform the gas supply companyThe boilers are preset to run on G20 gas (gas H) and can be adapted to run with the following gases

G31 (gas P)G3031 (gas BP)

ImportantTo use a different type of gas contact an approved assistance service

57 Air supplyflue gas outlet connections

571 Classification

The discharge and intake pipes must be certified for the appropriate configuration and must meet the requirements of the prevailing installation standards in the country

Tab20 Configurations and recommendations for the flue systemConfiguration Principle DescriptionB23B23P

AD-3001055-01

Connection to a chimney using a CE connection kit (single pipe in a flue comshybustion air taken from the boiler room)Follow the connection instructions and adhere to the recommended maximum pipe lengthsComply with the applicable regulations governing ventilation and cross-secshytions for room aeration vents

B33

MW-5000925-1

Room-ventilated version

Without down-draught diverterJoint flue gas discharge via the roof with guaranteed natural draft (at all times underpressure in the joint discharge duct)Flue gas discharge rinsed with air air from the installation area (special conshystruction)The IP rating of the boiler is lowered to IP20

C13C13X

AD-3001056-01

Airflue gas connection using concentric pipes to a horizontal terminal (so-called forced flue) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

5 Installation

30 Gas 120 ACE 7717202 - v03 - 24062019

Configuration Principle DescriptionC33C33X

AD-3001057-01

Airflue gas connection using concentric pipes to a vertical terminal (roof outshylet) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

C43C43X

MW-2000822-01

Airflue gas connection via concentric pipes to a common pipe supplying severshyal heating applicationsThe common pipe has a roof connection to a vertical terminal that draws in the air required for combustion and discharges the combustion productsUse of CE-certified system

C53

AD-3001058-02

Airflue gas connection via separate pipes lead to two separate terminals One draws in the air required for combustion and the other discharges the combusshytion productsThe outlets may be in different pressure zonesDo not install the air supply and discharge on opposing surfacesUse of CE-certified system

C63C63X

The installer is responsible for installing a CE-certified discharge system that complies with the manufacturers recommendations (temperature flow pressure etc)

The maximum pressure drop in the pipes ΔP must not exceed the values given in the table below The pipes must be certified for this type of use and for a temperature of more than 100 degC The terminal part of the flue gas pipe must be certified as complying with the EN 1856-1 StandardIf installing discharge and intake pipes not supplied by Remeha these must be certified for the intended type of use and their maximum pressure drop must be compliant

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 31

Configuration Principle DescriptionC83C83X

MW-2000823-01

Flue gas connection to a collective flue for sealed boilers The air supply is inshydividual via a terminal coming from outside the buildingA concentric pipe can be used to both supply the boiler with combustion air and connect to the collective flue gas discharge systemThe chimney or flue gas pipe must be suitable for such use and the system CE certified

C93C93X

AD-3001059-01

Airflue gas connection via concentric pipes in an existing chimney The air supshyply in the chimney may be installed via the existing channel or via tubing Flue gas discharge and air intake are via a vertical terminal at the top of the chimney

The air intake and discharge must be close enough to be in the same pressure zoneThe minimum cross-sections are shown in the table belowThe flue system must be suitable for the intended use and the system CE certishyfied

Tab21 Minimum dimensions of the duct or pipe C93 C93X

Version (D) Without air supply With air supplyRigid 80 mm Oslash 130 mm 130 x 130 mm Oslash 140 mm 130 x 130 mmRigid 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmRigid 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmFlexible 80 mm Oslash 130 mm 130 x 130 mm Oslash 145 mm 130 x 130 mmFlexible 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmFlexible 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmConcentric 80125 mm Oslash 145 mm 145 x 145 mm Oslash 145 mm 145 x 145 mmConcentric 100150 mm Oslash 170 mm 170 x 170 mm Oslash 170 mm 170 x 170 mmConcentric 150200 mm Oslash 270 mm 270 x 270 mm - -

ImportantThe duct must comply with the air density requirements of the local regulations

Important

Only original components are authorised for connection to the boiler and for the terminalThe clear section must comply with the standardThe chimney must be swept before installing the discharge flue

CautionEnsure that the flue gas discharge pipes are securely attached to the wall with suitable retaining flanges to prevent any damage and guarantee the tightness of every gasket in the circuit

CautionThe minimum gradient of the condensates discharge pipe from the boiler to the waste water discharge must be 1 cm per linear metre

Fig22 Minimum dimensions of the duct or pipe C93 C93X

AD-3000330-03

D

Oslash

D

5 Installation

32 Gas 120 ACE 7717202 - v03 - 24062019

572 Lengths of the airflue gas pipes

The maximum lengths (Lmax) given in the table are valid for pipes in which the horizontal sections do not exceed one metre in total For each additional metre of horizontal pipe a multiplication coefficient of 12 must be applied when calculating the total length L The total length L is calculated by adding the lengths of the straight airflue gas pipes and the equivalent lengths of the other componentsAlways ensure that L is less than Lmax

ImportantFor the list of flue gas system accessories and the equivalent lengths refer to the current price list

Tab22 Lengths of the airflue gas pipes in metresConfigurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 100 mm 26 24 19

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 110 mm 40 40 40

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 110 mm 295 24 175

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 80125 mm - - -

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 100150 mm 9 8 59

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 80125 mm - - -

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 100150 mm 115 10 94

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 80125 mm over 2x80 mm

- - -

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 100150 mm over 2x100 mm

23 175 Air 11Flue gases 5

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm110 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 110150 mm110 mm

16 132 10

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 33

Configurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 110150 mm110 mm

165 135 94

Tab23 PPS pipe reduction for each element used

Diameter 80 mmSingle

80125 mmConcentric

100 mmSingle

100150 mmConcentric

45deg elbow 12 m 10 m 11 m 10 m87deg elbow 19 m 15 m 20 m 37 mStraight inspection tube 03 m 06 m - 10 m87deg inspection elbow 19 m 20 m 48 m -Inspection T 42 m 27 m 56 m 25 mInspection tube for flexible pipe 03 m - 05 m -

573 Dimensions of flue gas outlet pipe

WarningThe pipes connected to the flue gas adapter must satisfy the following dimension requirements

d1 External dimensions of flue gas outlet pipe

Tab24 Dimensions of pipe d1 (min-max)80 mm 793 - 803 mm100 mm 993 - 1003 mm150 mm 149 - 151 mm

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipe

Tab25 Dimensions of pipe d1 (min-max) D1 (min-max)8080 mm 793 - 803 mm 793 - 803 mm100100 mm 993 - 1003 mm 993 - 1003 mm110110 mm 1093 - 1103 mm 1093 - 1103 mm150150 mm 149 - 151 mm 149 - 151 mm

Fig23 Dimensions of open connection

AD-3001094-01

oslashd1

Fig24 Dimensions of parallel connection

AD-3000963-01

oslashd1 oslashD1

5 Installation

34 Gas 120 ACE 7717202 - v03 - 24062019

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipeL1 Length difference between flue gas outlet pipe and air supply pipe

Tab26 Dimensions of pipe d1 (min-max) D1 (min-max) L1

(1) (min-max)80125 mm 793 - 803 mm 124 - 1255 mm 0 - 15 mm100150 mm 993 - 1003 mm 149 - 151 mm 0 - 15 mm

(1) Shorten the inner pipe if the length difference is too great

574 Connection to the flue gas pipe

At delivery the flue gas outletair supply is fixed inside the boiler

1 Using a long tool unlock and remove the boilers front door2 Remove the boiler outlet

3 Two options for connection to the flue gas pipe

Option Description3a Connection to a vertical flue gas pipe Position the flue gas

outletair supply directly at the boiler outlet3b Connection to a horizontal flue gas pipe Insert an outlet elshy

bow ( not supplied) before the flue gas outletair supply

ImportantLubricate the gaskets on the flue system during assembly

Fig25 Dimensions of concentric connection

AD-3000962-01

oslashd1

L1

oslashD1

Fig26

MW-2000867-02

1

2

1

Fig27

3a 3b

MW-2000868-01

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 35

Fastening the coaxial pipes Fasten the intake pipes with two galvanised Oslash 42 mm screws with a maximum length of 16 mm

CautionBefore fixing the screws make sure that at least 45 cm of pipe is inserted in the gasket of the other pipe

WarningGuarantee a minimum pipe slope towards the boiler of at least 5 cm per metre

Fig28 Fastening the coaxial pipes using screws

BO-0000030

16 mm

5 Installation

36 Gas 120 ACE 7717202 - v03 - 24062019

6 Operation

61 Settings

To configure the installation and use the boiler please refer to the control unit manual

6 Operation

7717202 - v03 - 24062019 Gas 120 ACE 37

7 Maintenance

71 General

We recommend having the boiler inspected and serviced at regular intervals

CautionDo not neglect to service the boiler Contact a qualified professional or take out a maintenance contract for the obligatory annual servicing of the boilerFailure to service the appliance voids the warranty

Danger of electric shockBefore service work is started the boiler has to be de-energised and secured from accidentally being switched back on

CautionHave an inspection carried out and the flues swept at least once a year or more depending on the regulations in force in your country

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

CautionAfter maintenance or repair work check the entire heating system to ensure that there are no leaks

CautionOnly genuine spare parts may be used

72 Specific maintenance operations

721 Cleaning the siphon

1 Remove the flue gas outlet discharge pipe

2 Remove the condensate discharge pipe 3 Remove the screw from the siphon

Fig29

1

MW-2000903-01

Fig30

2

3

MW-2000904-01

7 Maintenance

38 Gas 120 ACE 7717202 - v03 - 24062019

4 Pull the siphon downwards to disengage it and pivot it to release it

5 Flush the siphon 6 Drain the siphon

7 Fill the siphon with clean water up to the mark 8 Lubricate the siphon gasket9 Re-engage the siphon and refit the screw

10 Refit the two pipes

722 Checking the ionisation current

1 Check the ionisation current at full load and at low loadThe value is stable after 1 minute

2 Clean or replace the ionisationignition electrode if the value is lower than 4 microA

Fig31

4

90deg

MW-2000905-01

Fig32

MW-2000843-01

Fig33

MW-2000844-01

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 39

723 Replace the ionizationignition electrode

The ionizationignition electrode must be replaced if

The ionization current is lt 4 microAThe electrode is damaged or worn

1 Remove the plug of the electrode from the igniter

ImportantThe ignition cable is fixed to the electrode and therefore may not be removed

2 Remove the two screws3 Remove the entire component4 Fit the new ionizationignition electrode with a new seal5 Reassemble the unit in the reverse order to disassembly

724 Servicing the forced flue connection pipes

1 Open the inspection hatches or remove the pipes2 Check that the air supply and discharge pipes are not blocked

If necessary clean the discharge pipe3 Check the tightness of the flue gas system4 Replace the tightness gaskets and if necessary any sections of pipe

until tightness is perfect

725 Checking the burner and cleaning the heat exchanger

1 Remove the air inlet flue on the venturi2 Loosen the gland on the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

Fig34

AD-0000088-01

4

1

2

3

Fig35 Removing the fan

AD-3001178-01

1

3

4

2

5

7 Maintenance

40 Gas 120 ACE 7717202 - v03 - 24062019

6 Remove the front plate from the heat exchanger7 Carefully lift the front plate including the burner and fan away from

the heat exchanger

8 Use a vacuum cleaner fitted with a special endpiece (accessory) to clean the top part of the heat exchanger (combustion chamber)

9 Vacuum again without the top brush on the end piece10 Clean the lower section of the heat exchanger with the special

cleaning blade (accessory)11 Check (eg using a mirror) whether any visible contamination has

been left behind If it has remove it with the vacuum cleaner12 Check that the burner cover of the dismantled burner is free from

cracks andor damage If not replace the burnerServicing the burner is usually not necessary it is self-cleaning Use compressed air to carefully blow away any dust

13 Reassemble the unit in reverse order

CautionRemember to reconnect the fan plugCheck that the gasket is correctly positioned between the mixing elbow and the heat exchanger (the gasket must lie absolutely flat in the appropriate groove to ensure that no gas can leak)Tighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the front plate nuts with a torque wrench to the firmness of 10 Nm

14 Open the gas supply and switch the power supply to the boiler back on

Fig36 Removing the front plate fan and burner

AD-3001179-01

6

7

Fig37 Cleaning the heat exchanger

AD-3001180-01

10

8 9

12

11

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 41

726 Checking the non-return valve

1 Remove the air inlet pipe from the venturi2 Unscrew the gland of the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

6 Dismantle the fan7 Remove the fan together with the gas valve unit8 Inspect the non-return valve and replace it in the event of a defect or

damage or if the maintenance kit contains a non-return valve9 Reassemble in the reverse order

CautionRemember to reconnect the fan plugTighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the two fan nuts with a torque wrench to the firmness of 38 Nm

Fig38 Disconnecting the fan

AD-3001178-01

1

3

4

2

5

Fig39 Checking the non-return valve

AD-3001181-01

2x

68

7

9

7 Maintenance

42 Gas 120 ACE 7717202 - v03 - 24062019

8 Decommissioning

81 Decommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

To switch off the boiler temporarily or permanently proceed as follows

1 Switch the boiler off2 Cut the electrical power to the boiler3 Close the gas valve on the boiler4 Drain the central heating system or ensure frost protection5 Close the door of the boiler to prevent air circulating inside it6 Remove the pipe connecting the boiler to the chimney and close the

nozzle with a plug

82 Recommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

Should it prove necessary to carry out the recommissioning of the boiler proceed as follows

1 Re-establish electrical power to the boiler2 Fit and check the flue gas pipe3 Fill the siphon with water4 Fill the central heating system5 Open the boiler gas valve6 Start up the boiler

8 Decommissioning

7717202 - v03 - 24062019 Gas 120 ACE 43

9 Disposal and recyclingCautionOnly qualified professionals are permitted to remove and dispose of the boiler in accordance with local and national regulations

If you need to remove the boiler proceed as follows

1 Switch off the boiler2 Cut the power supply to the boiler3 Close the main gas valve4 Close the water mains5 Close the gas valve on the boiler6 Drain the installation7 Remove the airflue gas pipes8 Disconnect all pipes9 Dismantle the boiler

Fig40

MW-3000179-03

9 Disposal and recycling

44 Gas 120 ACE 7717202 - v03 - 24062019

10 Environmental

101 Energy savings

Energy-saving advice

Do not block ventilation outletsDo not cover the radiators Do not hang curtains in front of the radiatorsInstall reflective panels behind the radiators to prevent heat lossesInsulate the pipes in rooms that are not heated (cellars and lofts)Close the radiators in rooms not in useDo not run hot (or cold) water pointlesslyInstall an energy-saving shower head which can save up to 40 energyTake showers rather than baths A bath consumes twice as much water and energy

102 Room thermostat and settings

Various models of room thermostat are available The type of thermostat used and the parameter selected impact total energy consumption

A modulating regulator which may be combined with thermostatic valves is eco-friendly in terms of energy and offers an excellent level of comfort This combination allows you to set the temperature separately for each room However do not install thermostatic radiator valves in the room in which the room thermostat is locatedComplete opening and closing of the thermostatic radiator valves causes undesirable variations in temperature Therefore these must be openedclosed progressivelySet the room thermostat to a temperature of approximately 20degC to reduce heating costs and energy consumptionLower the thermostat setting to approximately 16degC at night or when you are not at home This reduces heating costs and energy consumptionLower the thermostat setting well before airing the roomsSet the water temperature to a lower level in summer than in winter (eg 60degC and 80degC respectively) when an ONOFF thermostatis usedWhen clock thermostats and programmable thermostats are to be set do not forget to take any holidays and days when no one is at home into account

10 Environmental

7717202 - v03 - 24062019 Gas 120 ACE 45

11 Warranty

111 General

We would like to thank you for buying one of our appliances and for your trust in our productIn order to ensure continued safe and efficient operation we recommend that the product is regularly inspected and maintainedYour installer and our service department can assist with this

112 Terms of warranty

The following provisions do not affect the application in favour of the buyer of the legal provisions with regard to hidden defects that are applicable in the buyers countryThis appliance comes with a warranty that covers all manufacturing faults the warranty period will commence on the date of purchase stated on the installers invoiceThe warranty period is stated in our price listAs a manufacturer we can by no means be held liable if the appliance is used incorrectly is poorly maintained or not maintained at all or is not installed correctly (it is your responsibility to ensure that installation is carried out by a qualified installer)In particular we cannot be held liable for material damage intangible losses or physical injury resulting from an installation that does not comply with

Legal or regulatory requirements or provisions laid down by the local authoritiesNational or local regulations and special provisions relating to the installationOur manuals and installation instructions in particular in terms of regular maintenance of the appliances

Our warranty is limited to the replacement or repair of the parts found to be defective by our technical services team excluding labour transfer and transport costsOur warranty does not cover replacement or repair costs for parts that may become defective due to normal wear incorrect usage the intervention of unqualified third parties inadequate or insufficient supervision or maintenance a mains supply that is not appropriate or the use of unsuitable or poor quality fuelSmaller parts such as motors pumps electrical valves etc are guaranteed only if these parts have never been dismantledThe rights established in European Directive 9944EEC implemented by legal decree No 24 of 2 February 2002 and published in Official Journal No 57 of 8 March 2002 remain in force

11 Warranty

46 Gas 120 ACE 7717202 - v03 - 24062019

12 Spare parts

121 General

If inspection or maintenance work bring to light the need to replace a component in the boilerProvide the reference number given in the spare parts list when ordering a spare part

CautionOnly genuine spare parts may be used

122 Spare parts lists

1221 Exchanger

Fig41

MW-6000743-01

811x

7

7

4

2

16

3

10

119

65

1

13

12

18

14

19

15

18

17

Tab27

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

1 7699615 Complete exchanger x 1 7699614 Complete exchanger x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 47

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

2 S101564 Exchanger front plate x x x3 S54731 Exchanger inspection hatch insulation x x x4 S57241 Exchanger inspection hatch gasket x x x5 S100052 M4x10 self-locking screw (x20) x x x6 S54754 FURQ65 burner x 6 S57477 FURQ85 burner x x7 7623837 Set of 10 k NTC sensors x x x8 S54755 M6 nut (x20) x x x9 7659755 M4x10 screw (x10) x x x10 S53489 Electrode gasket (x10) x x x11 7692359 Ignition electrode x x x12 7631936 Flue gas flow pipe diameter 100 mm x x x13 7624643 NTC 2x20 k flue gas sensor with gasket x x x14 7624619 Ignition transformer x x x15 S56987 ZP M6x16 screw (x10) x x x16 7616253 Valve with support x x x17 7680596 Exchanger bracket x 17 7673616 Exchanger bracket x x18 7701752 Gasket diameter 100 mm (x5) x x x19 7632708 Earth electric clip (x2) x x x

1222 Gas circuit

Fig42

MW-6000744-01

3

2

5

6

9

4

8

10

7

12

11

1

14

13

13

12 Spare parts

48 Gas 120 ACE 7717202 - v03 - 24062019

Tab28Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 S101543 Silencer x 1 S101520 Silencer x 1 S101578 Silencer x2 S54777 Venturi gasket (x5) x 2 S59215 Gas valve-venturi gasket (x5) x 2 S101593 Gaskets (kit) x3 S101726 Fan RG 1481200-3633 x x 3 S100036 Fan RG 148 1200-3633-010202 x4 S101596 Gas valve VK4115v1386 x 4 S101597 Gas valve VK4115vb1012 x 4 S101510 Gas valve GB-ND 057 XP x5 S54766 Venturi x 5 S57488 Venturi x 5 S101595 Venturi VMS 45900450-010 x6 S59215 Gas valve-venturi gasket (x5) x x 7 S57827 Gas valve unit flange x8 S57828 268x22x25 O-ring (x5) x9 S101631 Diaphragm x10 7616249 Flue gas sensor cap (5x) x x x11 S56155 238x177x2 gasket (x20) x x x12 95760050 C HC M4-12 88 ZN3 screw x x x13 S48512 M5-10 screw (x10) x x x14 S101590 Silencer retaining clip x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 49

1223 Hydraulic circuit

Fig43

MW-6000745-01

1

14

6

9

11

8

12

5

37

9

10

2

4

13

Tab29Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7680598 Complete flow pipe x 1 7670807 Complete flow pipe x x2 7672557 Complete return pipe x x x3 7674076 Complete gas pipe x 3 7680434 Complete gas pipe x 3 7670720 Complete gas pipe x4 7698560 HUBA G38 pressure gauge x x x5 94994712 PVC pipe diameter 16x12 x x x6 7699357 Water deflector diameter 100 mm x x x7 94902073 Drain valve 12 x x x8 94918138 Air vent x x x9 95013064 44x32x2 mm green gasket x x x10 95013060 24x17x2 mm green gasket x x 10 95013062 30x21x12 mm green gasket x11 7692329 Condensate hose x x x13 7706103 Assembled siphon height 160 mm x 13 7706038 Assembled siphon height 250 mm x x14 7103731 Condensate drain pan gasket x x x

12 Spare parts

50 Gas 120 ACE 7717202 - v03 - 24062019

1224 Boiler body

Fig44

MW-6000746-01

2

2

1

6

3

34

5

4

Tab30Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7686377 Assembled frame x 1 7686139 Assembled frame x x2 7679958 117x34 handle diameter 65 mm x x x3 7676037 Wheel x x x4 7688301 Frame lateral gasket x 4 7688008 Frame lateral gasket x x5 7688353 Front panel gasket x 5 7688007 Front panel gasket x x6 7693874 R4-05 front panel lock x x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 51

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

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Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

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Scanboiler Varmeteknik AS

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Remeha Commercial UK

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RG41 2FD Wokingham

UK T +44 (0)118 978 3434

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E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 5: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

1 Safety

11 General safety instructions

For the installer and end user

DangerThis appliance can be used by children aged from 8 years and above and persons with reduced physical sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved Children shall not play with the appliance Cleaning and user maintenance shall not be made by children without supervision

CautionDo not touch the flue gas pipes Depending on the boiler settings the temperature of the flue gas pipes can rise to over 60degC

CautionDo not touch radiators for long periods Depending on the boiler settings the temperature of the radiators may exceed 60degC

CautionTake precautions with the domestic hot water Depending on the boiler settings the domestic hot water temperature may exceed 65degC

Danger of electric shockBefore any work switch off the mains supply to the boiler

For the installer

1 Safety

7717202 - v03 - 24062019 Gas 120 ACE 5

DangerIf you smell gas1 Do not use a naked flame do not smoke do

not operate electrical contacts or switches (doorbell light motor lift etc)

2 Shut off the gas supply3 Open the windows4 Locate the probable leak and seal it

immediately5 If the leak is before the gas meter contact the

gas supplier

DangerIf you smell flue gases1 Switch off the appliance2 Open the windows3 Locate the probable source of the flue gas

leak and fix it immediately

WarningThe condensation drain must not be changed or sealed If a condensate neutralisation system is used the system must be cleaned regularly in accordance with the instructions provided by the manufacturer

For the end user

DangerIf you smell gas1 Do not use a naked flame do not smoke do

not operate electrical contacts or switches (doorbell light motor lift etc)

2 Shut off the gas supply3 Open the windows4 Evacuate the property5 Contact a qualified professional

DangerIf you smell flue gases1 Switch off the appliance2 Open the windows3 Evacuate the property4 Contact a qualified professional

1 Safety

6 Gas 120 ACE 7717202 - v03 - 24062019

12 Recommendations

DangerFor safety reasons we recommend fitting smoke and CO2 detectors and alarms at suitable places in your home

CautionThe boiler must always be connected to the protective earthingEarthing must comply with the prevailing installation standardsEarth the appliance before making any electrical connections

For the type and calibre of the protective equipment refer to the chapter Electrical Connections in the Installation and Service Manual

CautionIf a power cord comes with the appliance and it turns out to be damaged it must be replaced by the manufacturer its after sales service or persons with similar qualifications in order to obviate any danger

CautionA disconnection device must be fitted to the permanent pipes in accordance with the installation rules

CautionPower the appliance via a circuit that includes an omni-polar switch with contact opening distance of 3 mm or more

CautionDrain the boiler and heating system if the home is left empty for a long period of time and there is a chance of frost

CautionRemove the boiler casing only to perform maintenance and repair work Always put the casing back in place after such work

CautionTo enjoy warranty cover no modifications must be made to the boiler

1 Safety

7717202 - v03 - 24062019 Gas 120 ACE 7

CautionThe frost protection function only protects the boiler not the heating system

CautionThe frost protection function does not work if the boiler is powered off

CautionThe appliance should be switched to Summer or Frost Protection mode rather than be switched off in order to guarantee the following functions

Avoidance of pumps blockingFrost Protection

ImportantRespect the minimum and maximum water inlet pressure to ensure correct operation of the boiler refer to the chapter Technical Specifications

ImportantOnly qualified professionals are permitted to install the boiler in accordance with prevailing local and national regulations

ImportantNever remove or cover labels and data plates affixed to the boilerLabels and data plates must be legible throughout the entire lifetime of the boiler Immediately replace damaged or illegible instructions and warning labels

ImportantKeep this document close to the place where the appliance is installed

13 Liabilities

131 Manufacturers liability

Our products are manufactured in compliance with the requirements of the various Directives applicable They are therefore delivered with the marking and any documents necessary In the interests of the quality of our products we strive constantly to improve them We therefore reserve the right to modify the specifications given in this documentOur liability as manufacturer may not be invoked in the following cases

1 Safety

8 Gas 120 ACE 7717202 - v03 - 24062019

Failure to abide by the instructions on installing and maintaining the applianceFailure to abide by the instructions on using the applianceFaulty or insufficient maintenance of the appliance

132 Installers liability

The installer is responsible for the installation and initial commissioning of the appliance The installer must observe the following instructions

Read and follow the instructions given in the manuals provided with the applianceInstall the appliance in compliance with prevailing legislation and standardsCarry out initial commissioning and any checks necessaryExplain the installation to the userIf maintenance is necessary warn the user of the obligation to check the appliance and keep it in good working orderGive all the instruction manuals to the user

133 Users liability

To guarantee optimum operation of the system you must abide by the following instructions

Read and follow the instructions given in the manuals provided with the applianceCall on a qualified professional to carry out installation and initial commissioningGet your installer to explain your installation to youHave the required inspections and maintenance carried out by a qualified installerKeep the instruction manuals in good condition close to the appliance

1 Safety

7717202 - v03 - 24062019 Gas 120 ACE 9

2 Symbols used

21 Symbols used in the manual

This manual uses various danger levels to draw attention to special instructions We do this to improve user safety to prevent problems and to guarantee correct operation of the appliance

DangerRisk of dangerous situations that may result in serious personal injury

Danger of electric shockRisk of electric shock

WarningRisk of dangerous situations that may result in minor personal injury

CautionRisk of material damage

ImportantPlease note important information

SeeReference to other manuals or pages in this manual

22 Symbols used on the appliance

1 Alternating current2 Protective earthing3 Before installing and commissioning the appliance carefully read

the instruction manuals provided4 Dispose of used products through an appropriate recovery and

recycling structure5 Caution danger of electric shock live parts Disconnect the mains

power prior to carrying out any work

Fig1

1 2

MW-2000068-1

1

2

3

4

5

2 Symbols used

10 Gas 120 ACE 7717202 - v03 - 24062019

3 Technical specifications

31 Homologations

311 Directives

This product has been manufactured and put into circulation in accordance with the requirements and standards of the following European Directives

Gas Appliances Regulation (EU) (2016426)

Pressure Equipment Directive 201468EU

Electromagnetic Compatibility Directive (201430EU)

Low Voltage Directive (201435EU)

Efficiency Directive (9242EEC)

European Ecodesign Directive (2009125EC)EU Regulation (8132013)

Energy Labelling Framework Regulation (EU) (20171369)EU Regulation (8112013)

BS 7074 Part 1 Application selection and installation of expansion vessels and ancillary equipment for sealed water systemsBS 6644 Specification for the installation of gas-fired condensing boilers with a nominal output exceeding 70 kWBS EN 12828 Design for water-based heating systemsBS EN 13831 Closed expansion vessels

Apart from the legal provisions and Directives the additional Directives described in these instructions must also be observedFor all provisions and Directives referred to in these instructions it is agreed that all addenda or subsequent provisions will apply at the time of installation

312 EC Declaration of Conformity

The unit complies with the standard type described in the EC declaration of conformity It has been manufactured and commissioned in accordance with European directivesThe original declaration of conformity is available from the manufacturer

313 Gas categories

Tab1 Czech Republic Spain Greece Portugal Switzerland UK

Category Gas type Connection pressure (mbar) Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

II2H3BP G20 (H gas) 20 X X X G30G31 (butanepropane) 303750 X X X

314 Certifications

Tab2 CertificationsCE number 0085CT0009NOx class 6 (EN 15502-1)

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 11

Type of flue gas connection Chimney

B23B23PB33

Forced flue

C13C13XC33C33XC43C43XC53C63C63XC83C83XC93C93X

315 Factory test

Before leaving the factory each boiler is optimally set and tested for

Electrical safetySettings (CO2)Water tightnessGas tightnessParameter setting

32 Technical data

Tab3 GeneralGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Nominal heat output (Pn)Central heating operation (80 degC60 degC)

minndashmax kW 120 - 615 141 - 842 189 - 1039

Nominal heat output (Pn)Central heating operation (50 degC30 degC)

minndashmax kW 135 - 650 158 - 895 212 - 1097

Nominal input power (Qn)Heating mode (Hi)

minndashmax kW 122 - 620 146 - 860 196 - 1070

Nominal input power (Qn)Heating operation (Hi) G31 (propane)

minndashmax kW 122 - 620 221 - 860 212 - 1070

Nominal input power (Qn)Central heating operation (Hs)

minndashmax kW 137 - 689 162 - 955 217 - 1189

Full load heating mode efficiency (Hi) (8060 degC) (9242EEC)

992 979 971

Full load heating mode efficiency (Hi) (50 degC30 degC)

1046 1041 1025

Part load heating mode efficiency (9242EEC) (return temperature 30 degC)

1104 1081 108

Tab4 Gas and flue gas valuesGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115G20 gas consumption (H gas)(1) minndashmax m3h 13 - 66 15 - 91 20 - 117Gas consumption G31 (propane)(1)

minndashmax m3h 05 - 25 09 - 35 09 - 45

3 Technical specifications

12 Gas 120 ACE 7717202 - v03 - 24062019

Gas 120 ACE Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

Gas resistance G20 (H gas)(2) max mbar 20 25 30BREAM NOx mgkWh 32 29 35Flue gas quantity minndashmax m3h 18 - 90 22 - 125 30 - 160Flue gas temperature minndashmax degC 30 - 120 30 - 120 30 - 120Maximum counter pressure (Pn) Pa 100 160 220

(1) Gas consumption based on lower heating value in standardised conditions T=28815 K p=101325 mbar Gag 3033 G25 2925 G31 8800 MJm3

(2) Gas resistance between boiler connection and measurement point on the gas valve unit

Tab5Gas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Gas inlet pressure G20 (H gas) minndashmax mbar 17 - 25 17 - 25 17 - 25G30G31 gas inlet pressure (ButanePropane) minndashmax mbar 37 - 50 37 - 50 37 - 50G31 gas inlet pressure (Propane) minndashmax mbar 37 - 50 37 - 50 37 - 50

Tab6 Central heating circuit dataGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Water content l 71 101 101Water operating pressure min bar 08 08 08Water operating pressure (MOP) max bar 40 40 40Water temperature max degC 110 110 110Operating temperature max degC 90 90 90Pressure drop secondary circuit (ΔT = 20 K) mWC 17 16 26Maximum permitted temperature difference(1) max degC 40(1) 40(1) 35(1)

(1) with a maximum flow temperature of 80 degC

Tab7 Electrical dataGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Supply voltage (AC) V 230 230 230Power consumption ndash full load max W 92 124 180Power consumption - low load max W 25 24 344Power consumption ndash standby max W 6 5 9Electrical protection rating IP X1B X1B X1BFuses Main A 10 10 10

Tab8 Other dataGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Total weight (empty) kg 98 109 109Average acoustic level at a distance of one meshytre from the boiler

dB(A) 40 45 45

SeeThe back cover for contact details

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 13

321 ErP technical parameters

Tab9 Technical parameters for boiler space heatersProduct name Gas 120 ACE

- 65Gas 120 ACE - 90

Gas 120 ACE - 115

Condensing boiler Yes Yes YesLow-temperature boiler(1) No No NoB1 boiler No No NoCogeneration space heater No No NoCombination heater No No NoRated heat output Prated kW 62 84 104

Useful heat output at rated heat output and high temperature regime(2)

P4 kW 615 842 1039

Useful heat output at 30 of rated heat output and low temperature regime(1)

P1 kW 205 279 347

Seasonal space heating energy efficiency ƞs 94 - -Useful efficiency at rated heat output and high temperature regime(2)

ƞ4 894 882 875

Useful efficiency at 30 of rated heat output and low temperature regime(1)

ƞ1 995 974 973

Auxiliary electricity consumption Full load elmax kW 0092 0124 0180Part load elmin kW 0025 0024 0034Stand-by PSB kW 0006 0005 0009

Other specifications Standby heat loss Pstby kW 0114 0119 0119Ignition burner power consumption Pign kW - - -Annual energy consumption QHE GJ 190 - -Sound power level indoors LWA dB 55 61 60Emissions of nitrogen oxides NOx mgkWh 29 41 41(1) Low temperature means for condensing boilers 30degC for low temperature boilers 37degC and for other heaters 50degC return temperature

(at heater inlet)(2) High temperature regime means 60 degC return temperature at heater inlet and 80 degC feed temperature at heater outlet

SeeThe back cover for contact details

322 Circulating pump (not provided)

The boiler is supplied without a circulating pump Take the boiler pressure drop and system pressure drop into account when selecting a pump

CautionThe maximum output of a pump that can be connected is 200 W Above this use an auxiliary relay adapted to the pump output

If possible install the pump in direct connection to the boiler on the return circuit

For more information see

Circulating pump

The maximum difference in temperature between the flow water and the return water and the speed at which the boiler temperature increases are restricted by the boilers control system

3 Technical specifications

14 Gas 120 ACE 7717202 - v03 - 24062019

Tab10 Minimum flow to be guaranteedMinimum flow to be guaranteed in the boiler Unit Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Minimum flow rate litreshour 290 340 455

A Dynamic head in mWcB Water flow rate (m3h)C Pressure drops

ΔT Maximum temperature difference between the flow water and the return water in the boiler

A Dynamic head in mWcB Water flow rate (m3h)C Pressure drops

ΔT Maximum temperature difference between the flow water and the return water in the boiler

A Dynamic head in mWcB Water flow rate (m3h)C Pressure drops

ΔT Maximum temperature difference between the flow water and the return water in the boiler

323 Sensor specifications

Outside temperature sensor specifications

Tab11 Outside temperature sensorTemperature degC -20 -16 -12 -8 -4 0 4 8 12 16 20 24Resistance Ω

(Ohm)2392 2088 1811 1562 1342 1149 984 842 720 616 528 454

Fig2 Pressure drops for Gas 120 ACE - 65

MW-2000671-3

T=20KT=40K

175

Fig3 Pressure drops for Gas 120 ACE - 90

MW-2000673-3

T=20KT=40K

362

Fig4 Pressure drops for Gas 120 ACE - 115

MW-2000674-3

T=20KT=35K

447

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 15

Boiler sensor return sensor

Tab12 Boiler sensor return sensorTemperature in degC

-20 -10 0 10 20 25 30 40 50 60 70 80 90 100 110

Resistance in Ω

98932 58879 36129 22804 14773 10000 9804 6652 4607 3252 2337 1707 1266 952 726

Circuit flow sensor domestic hot water sensor and system sensor

Tab13 Circuit flow sensor domestic hot water sensor and system sensorTemperature in degC 0 10 20 25 30 40 50 60 70 80 90Resistance in Ω 32014 19691 12474 10000 8080 5372 3661 2535 1794 1290 941

Specifications of the boiler flue gas sensor

Tab14 Boiler flue gas sensorTemperature degC 0 10 20 30 40 50 60 70 80 90 100Resistance Ohm 66000 40000 20000 16100 10600 7160 4940 3480 2490 1810 1340

33 Dimensions and connections

Fig5

MW-2000684-03

A

D

E

FG

BC

600 605150

92

132

240

141

418

5

2

34

107

105

95

100

1

255145

1 Heating circuit flow (R114)2 Gas inlet (G34)3 Heating circuit return (R114)

4 Condensate discharge (DN22)5 Flue gas pipe

Tab15 Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 1155 Diameter 100150 mm Diameter 100150 mm Diameter 100150 mmA (mm) 1340 1562 1562B (mm) 1164 1386 1386C (mm) 1082 1304 1304D (mm) 971 1193 1193

3 Technical specifications

16 Gas 120 ACE 7717202 - v03 - 24062019

Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 115E (mm) 410 632 632F (mm) 87 303 303G (mm) 128 350 350

34 Electrical diagram

341 Electrical diagram of boiler

Fig6

CU-GH-08

X3X4X5

X6

X8

1

2

3

1

2

3

X14

X7

X10

X11

X13

X12

1

2

3

4

5

25 A

Nrsquo

1

2

3

4

YE

GY

BR

GR

1

2

3

4

1

2

3

4

1

2

N L

1

2

1

2

OPTION

PRESSURE

SWITCH

MW-2000850-04

230V

1 2 3 4 5 6 7 8 9 10

24V

12 11

BL OR

10 9 8 7 6

GR BK RE YE BL

5 4 3 2 1

OR BK RE YE BL

Lrsquo

BL

GY

GY

GY

BL BR

GY

BL

BR

GY BL

BR

GY

BR

GR BK RE YE BL OR BK RE YE BL

BK

BL

BR

RE

GR

GR

BK

GR

GY

YE

BR

BL

OR

1

2

3

4

5

1

2

3

RE

BK

GR

BR

BK

BL

GR

1

2

BR

GR

GY

RE BL

BL

BK

BK

BR YE

GR PI

BL

BL

GR

PI

GR

RE

BR

YE

BK

BK

BR

GY

BL

BL

BR

GY

GY

BR

BL BL GY

BR

BL

BR

BK

GYWH

GY

BL

GY

BL

BR

BK

WH

BL

GY

1 12

4

5

2

3

6

7

8

9

10

11

16

17

15

14

13

1 230 V connector connection with control unit2 Mains interference filter3 Earthing of boiler front door4 Return sensor (TR)5 Flow sensor (FTS)6 Flue gas sensor7 Flue gas pressure switch (specific option for the

Netherlands)8 Gas valve unit (GB)9 Igniter (IT)

10 Ionizationignition electrode (E)11 Fan supply12 24 V connector connection with control unit13 Storage information (CSU)14 Pressure sensor (PS)15 Fan control (PWM)16 Light17 Control unit (CU-GH08)BK BlackBL Blue

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 17

BR BrownGY GreenYellowYE YellowOR OrangeGR Green

PI PinkGY GreyRD RedWH White

3 Technical specifications

18 Gas 120 ACE 7717202 - v03 - 24062019

4 Description of the product

41 General description

Gas 120 ACE floor-standing condensing gas boilers have the following characteristics

Low polluting emissionsHigh-efficiency heatingElectronic control panelFlue gas discharge by a forced flue or chimney type connection with bi-flow option

The boilers are perfectly suited to cascade installation

42 Operating principle

421 Gasair setting

The casing fitted to the boiler is also used as an air box Air is drawn in by the fan and gas injected into the Venturi by the fan intake The fan speed is modulated according to the settings the heat demand and the actual temperatures measured by the temperature sensors The gas and air are mixed in the Venturi The gasair ratio command function accurately adjusts the quantities of gas and air required This provides optimum combustion over the entire output range The gasair mixture is sent to the burner located upstream of the heat exchanger

422 Settings and safety devices

ImportantThe settings and safety devices are only operational if the boiler is powered up

Tab16 Description of the safety devicesDevice DescriptionNTC flue gas sensor The control panel blocks the gas supply to the burner in the event of overheatingFlame detector by ionisation The boiler is put into safety lock-down in the event of gas shortage or incomplete cross-

lighting on the burnerHydraulic pressure switch When the pressure switch detects a pressure lower than 08 bar (008 MPa) a warning

message is displayed without stopping the circulating pumpPost-circulating pump After the burner stops depending on the room thermostat setting and if in heating

mode the circulating pump runs for a further 3 minutesFrost protection device When the flow temperature is lower than 5 degC the burner starts up and runs until the

flow temperature reaches 15 degC This device runs under the following conditions

The boiler is switched onThe gas supply is workingThe pressure in the system is higher than 05 bar (005 MPa)

Anti-blocking of the pump If there are no heating or domestic hot water requirements for 24 consecutive hours the pumps start up automatically and run for 10 seconds

Anticipatory start-up of the circulatshying pumps

In heating mode only the appliance can start up the circulating pumps before burner igshynition The duration and activation of anticipatory start-up depends on the installation reshyquirements and the operating temperatures The duration of anticipatory start-up of the circulating pumps therefore varies from a few seconds to several minutes

4 Description of the product

7717202 - v03 - 24062019 Gas 120 ACE 19

43 Main boiler components

1 Control unit2 Flow sensor3 Light4 Ignitionionization electrode5 Non-return valve6 Gas valve7 Heat exchanger (heating circuit)8 Return sensor9 Pressure gauge sensor

10 CU-GH-08 PCB housing11 Siphon12 Flue gas circuit13 Intake silencer14 Venturi15 Flue gas sensor16 Fan17 Automatic air vent18 Flue gas measuring point19 Combustion air measuring point20 Flue gas outletair supply

44 PCBs

441 Description of the CU-GH-08 PCB

This PCB controls the core boiler components sensors actuators and gas valveThis PCB is factory-fitted and fully cabled and does not require any operationThe sensors valves circulating pumps etc are connected at the control unit

45 Standard delivery

The Gas 120 ACE boiler comes in 2 packages including

Tab17 Package contentsPackage ContentPackage 1 A floor-standing gas boiler

A flue system outlet with a measuring point (stored in the boiler)An outdoor temperature sensorA data plateAn installation and service manual

Package 2 A control unitTwo control unit mounting bolts on the boilerA user manual

46 Accessories amp options

A detailed list of accessories and options can be found in our catalogue

Fig7

MW-2000670-02

16

7 13

12

11

10

19

18

20

17

14

15

6

5

2

9

4

3

1

8

4 Description of the product

20 Gas 120 ACE 7717202 - v03 - 24062019

5 Installation

51 Installation regulations

CautionInstallation of the boiler must be done by a qualified professional in accordance with prevailing local and national regulations

CautionA disconnection device must be fitted to the permanent pipes in accordance with the installation rules

CautionRespect the maximum water inlet pressure to ensure correct operation of the appliance referring to the Technical Specifications chapter

52 Choice of the location

Decide on the ideal position for installation bearing in mind any legal directives and the space required by the appliance

Install the boiler on a solid stable structure capable of bearing the weight of the appliance when full of water and fully equippedWhen choosing the position for installation of the boiler bear in mind the positions authorised for the combustion gas discharge outlets and the air intake ventDo not install the boiler near any heat sources

521 Data plate

The data plate is located on the back of the boilerThe data plate provides important information regarding the appliance

Serial numberModelGas categoryCN1CN2etc

Once installation is complete the second data plate supplied in the documentation bag can be affixed to a more visible part of the boilerIf the boiler is equipped with a hydraulic kit (low-loss header or plate heat exchanger) affix the data plate to the side of the boiler

522 Space required - Boiler ventilation

Decide on the ideal position for installation bearing in mind any legal directives and the space required by the appliance

Install the boiler on a solid stable structure capable of bearing the weight of the appliance when full of water and fully equippedWhen choosing the position for installation of the boiler bear in mind the positions authorised for the combustion gas discharge outlets and the air intake ventDo not install the boiler near any heat sources

Fig8

MW-6000735-01

Made in France0085

CN1 17

CN2 7

230 V 50 Hz

B23(P) - B33 - C13(X) - C33(X) - C43(X) - C53 - C63(X) - C83(X) - C93(X)

PMS= 4bar - 04MPa

Pn =

8060 degC

5030 degC

NOx class 6 (Nox lt 56 mgkWh)

Qn =Hi kW

4030 degC

189-1039

196-1070

212-1097

180W

0085CT009

Hs (G20) 217-1189

IP21Imax= 10A

Tmax= 90degC

FR

LT

IT

AT

CZ

PL

II2Esi3BP

II2H3BP

II2H3BP

II2H3BP

II2H3P

II2H3BP

II2H3BP

II2ELw3BP

G20-20mbar G25-25mbar G30G31-303750mbar

G20-20mbar G30G31 - 30mbar

G20-20mbar G30G31 - 303750 mbar

G20-20mbar G30G31 - 3037mbar

G20-20mbar G31 - 30mbar

G20-20mbar G30G31 - 50mbar

G20-20mbar G30G31-303750mbar

G20-20mbar G27-20mbar G3031-37mbar

kW

Art Nr SN A0000YYWW000

kW

kW

kW

kW

kW

ESGR PT

LU RO EE

YY-WW

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 21

Keep the boiler accessible at all timesPlace the boiler on a base to make it easier to clean the roomThe boiler can be located along a partition on one of its sides provided there is a 500 mm space on the opposite sideAllow enough space around the boiler to facilitate accessibility and maintenance The minimum recommended dimensions are shown in the illustrationMake sure there is a connection to the water drainage system close to the boiler to discharge any condensates

ImportantTo fit the boiler position the pallet with the package 25 m in front of the desired location for the installation This distance is required to allow the boiler to be removed from its pallet

Tab18Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 115

A (mm) 500 500 500B (mm) 1082 1304 1304

To allow the intake of combustion air sufficient ventilation must be provided in the boiler room the cross section and position of which must satisfy the regulations in force

Great Britain BS 5440 Part 1 and Part 2

For boilers with a nominal output of more than 70 kW Upper and lower air vents comshypulsory

BS 6644 and IGEMUP-10

Caution

Avoid any low points in the flue gas and condensate discharge circuit in order to prevent any accumulation of condensatesDo not block the air inlets in the room or the combustion product evacuation or condensation water flow pipes (even partially)

If the boiler is installed in closed premises respect the minimum dimensions given in the diagram below Also allow for openings to obviate the following hazards

Accumulation of gasOverheating of the premisesGreat Britain Minimum cross section of openings see BS 5440 Part 1 and Part 2 and BS 6644

523 Ventilation

To allow the intake of combustion air sufficient ventilation must be provided in the boiler room for which the cross section and position must satisfy the regulations in force in the country in which the boiler is installed

Great Britain BS 5440 Part 1 and Part 2

For boilers with a nominal output of more than 70 kW Upper and lower air vents comshypulsory

BS 6644 and IGEMUP-10

Fig9

MW-2000679-03

500

B

1100

AS1

S2

260

580

350

600

500

5 Installation

22 Gas 120 ACE 7717202 - v03 - 24062019

If the boiler is installed in closed premises respect the minimum dimensions given in the diagram below Also allow for openings to obviate the following hazards

Accumulation of gasOverheating of the premisesGreat Britain Minimum cross section of openings see BS 5440 Part 1 and Part 2 and BS 6644

524 Fitting the outdoor sensor

Plugs diameter 4 mmdrill diameter 6 mm

1 Choose a recommended location for the outdoor sensor2 Put the 2 plugs in place delivered with the sensor3 Secure the sensor using the screws provided (diameter 4 mm)4 Connect the cable to the outdoor temperature sensor

Recommended positions

Place the outside sensor in a position that covers the following characteristics

On a faccedilade of the area to be heated on the north if possibleHalf way up the wall of the area to be heatedUnder the influence of changes in the weatherProtected from direct sunlightEasy to access

Fig11

MW-8800N001-3

2

1

2

11

2

H

12 H (min 25 m)

12 H (min 25 m)

12 Z

H

Z

1 Optimum location2 Possible position

H Inhabited height controlled by the sensorZ Inhabited area controlled by the sensor

Positions to be avoided

Avoid placing the outside sensor in a position with the following characteristics

Masked by part of the building (balcony roof etc)Close to a disruptive heat source (sun chimney ventilation grid etc)

Fig10

MW-8800N003-6

23

4

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 23

Fig12

MW-3000014-2

53 Transport

Transport the boiler pallet with a manual or electric pallet truck

54 Unpacking and preparing the boiler

Caution

Wear gloves to handle the boilerTransport the boiler pallet with a manual or electric pallet truckUse carrying bars (not provided) to move the boiler

ImportantTo fit the boiler position the pallet with the package 25 m in front of the desired location for the installation This distance is required to allow the boiler to be removed from its pallet

1 Cut the packaging2 Remove the packaging from the boiler but leave the boiler on the

shipping pallet

ImportantThe documentation bag (user manual + accessories) is contained in the protective block

Fig13

MW-6000736-01

Manual

11

12

5 Installation

24 Gas 120 ACE 7717202 - v03 - 24062019

3 Using a long tool unlock and remove the boilers front door Disconnect the earth wire

4 Remove the mounting bolts from the unloading ramps and the boiler (4 bolts at the rear and 4 bolts at the front)

5 Pull out the unloading ramps and turn them over6 Align the ramps with the rear castor wheels on the boiler

Fig14

MW-6000761-01

3

3

Fig15

MW-6000737-01

4

4

Fig16

MW-6000738-01

5

5

6

6

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 25

7 Lock the ramps correctly onto the pallet8 Screw the unloading ramps onto the pallet9 Fold down the ends of the ramp so that they rest on the ground

10 Tilt the boiler backwards until it is resting on the castor wheels then remove it from the pallet

11 Recycle the pallet

Fig17

MW-6000770-01

9

9

8

7

Fig18

MW-6000739-02

600

350

11

10

550

5 Installation

26 Gas 120 ACE 7717202 - v03 - 24062019

12 Level the boiler using the adjustable feet(1) Factory setting 30 mm adjustment range 20 to 40 mm

CautionThe rear castor wheels must no longer be in contact with the ground

55 Hydraulic connections

551 Water treatment

In many cases the boiler and the heating system can be filled with mains water without treating the water

CautionDo not add any chemical products to the heating water without first consulting a water treatment specialist For example antifreeze water softeners products to increase or reduce the pH value chemical additives andor inhibitors These may cause faults in the boiler and damage the heat exchanger

Important

Flush the installation with at least 3 times the volume of water contained in the heating systemFlush the DHW circuit with at least 20 times its volume of water

The water in the installation must comply with following specifications

Tab19 Installation water specifications Initial commissioning Concentration (top up)Degree of acidity (untreated water) pH 65 - 85 65 - 85

Degree of acidity (treated washyter) pH 70 - 90 70 - 90

Conductivity at 25degC μScm le 500 le 500Chlorides mglitre le 50 le 50Other components mglitre lt 1 lt 1

Total water hardnessdegf 5 - 35 le 15degdH 28 - 200 le 85mmollitre(1) 05 - 35 lt 15

(1) Flow temperature less than 90degC mdash Maximum hardness 150 mmoll

Fig19

MW-6000773-01

(1)

12

12

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 27

ImportantIf water treatment proves necessary Remeha recommends the following manufacturers

CillitClimalifeFernoxPermoSentinel

552 Flushing new installations and installations less than 6 months old

Before filling the heating installation it is essential to remove any debris (copper caulking soldering flux) from the installation

1 Clean the installation with a powerful universal cleaner2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

553 Flushing an existing installation

Before filling the heating installation it is essential to remove any sludge deposits which have accumulated in the heating circuit over the years

1 Remove any sludge from the installation2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

554 Connecting the heating circuit

ImportantAbide by the information shown in the hydraulic diagrams

The pipes are not provided

Caution

The heating pipe must be mounted in accordance with the provisions applicableIf installing stop valves position the filldrain valve and the expansion vessel between the stop valves and the boilerAlways install a safety valve calibrated to a maximum of 4 bar on the heating circuit The safety valve can be connected to a venting pot The safety valve must not be used to drain the heating circuitIt is recommended to install a sludge collector on all installations

SeeIf fitting with a hydraulic kit (low-loss header or plate heat exchanger) refer to the kit manual

555 Connecting the condensate discharge pipe

Use a neutralisation station to achieve a pH value of more than 65 (in accordance with prevailing regulations)Discharge the condensates directly into the mains drainage system via a siphon In view of the acidity level (pH 25 to 3) only condensate discharge pipes made from compatible plastic should be used

5 Installation

28 Gas 120 ACE 7717202 - v03 - 24062019

The condensate discharge pipe is located at the rear of the boiler

Do not block the condensate discharge pipeTilt the discharge pipe by at least 30 mm per metre and make sure there are no low points that could cause the accumulation of water or deposits Maximum horizontal length 5 metresDo not drain condensation water into a roof gutterConnect the condensate discharge pipe in accordance with prevailing standardsIt is preferable to use the condensate neutralisers recommended by the manufacturer of the boiler

1 Connect a plastic hose to the condensate discharge outlet (DN 22)2 Insert the other end of the hose into a waste water discharge outlet

556 Filling the siphon

DangerIf operating with the siphon empty combustion products will escape into the premises in which the boiler is installed

1 Pour water into the flue gas pipe (central pipe) until it flows out of the condensate discharge pipe

56 Gas connection

Danger

Close the main gas valve before starting work on the gas pipesThe diameters of the pipes must be defined in accordance with the standards in force in your countryConnect the gas pipe in accordance with prevailing standards and regulationsEnsure that there is no dust in the gas pipe

The gas pipes are not providedIn old gas networks we recommend fitting a gas filter with a low pressure drop upstream of this point

1 Clean the gas supply pipe2 Remove the anti-dust plug located on the boilers gas inlet3 Mount a gas stop valve (not provided) on the boilers gas inlet4 Connect the gas inlet pipe to the gas stop valve

Fig20

MW-2000825-01

pH gt 65

Oslash32A

Fig21

MW-6000742-02

1

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 29

5 Close the gas supply valve before testing the pressure on the gas supply pipe to avoid damage caused by excessive pressure on the gas regulator Decompress before reopening the valve

561 Gas supply

Before mounting check that the gas meter has sufficient capacity (in m3h) To do this you should bear in mind the consumption of all appliances If the capacity of the gas meter is too low inform the gas supply companyThe boilers are preset to run on G20 gas (gas H) and can be adapted to run with the following gases

G31 (gas P)G3031 (gas BP)

ImportantTo use a different type of gas contact an approved assistance service

57 Air supplyflue gas outlet connections

571 Classification

The discharge and intake pipes must be certified for the appropriate configuration and must meet the requirements of the prevailing installation standards in the country

Tab20 Configurations and recommendations for the flue systemConfiguration Principle DescriptionB23B23P

AD-3001055-01

Connection to a chimney using a CE connection kit (single pipe in a flue comshybustion air taken from the boiler room)Follow the connection instructions and adhere to the recommended maximum pipe lengthsComply with the applicable regulations governing ventilation and cross-secshytions for room aeration vents

B33

MW-5000925-1

Room-ventilated version

Without down-draught diverterJoint flue gas discharge via the roof with guaranteed natural draft (at all times underpressure in the joint discharge duct)Flue gas discharge rinsed with air air from the installation area (special conshystruction)The IP rating of the boiler is lowered to IP20

C13C13X

AD-3001056-01

Airflue gas connection using concentric pipes to a horizontal terminal (so-called forced flue) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

5 Installation

30 Gas 120 ACE 7717202 - v03 - 24062019

Configuration Principle DescriptionC33C33X

AD-3001057-01

Airflue gas connection using concentric pipes to a vertical terminal (roof outshylet) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

C43C43X

MW-2000822-01

Airflue gas connection via concentric pipes to a common pipe supplying severshyal heating applicationsThe common pipe has a roof connection to a vertical terminal that draws in the air required for combustion and discharges the combustion productsUse of CE-certified system

C53

AD-3001058-02

Airflue gas connection via separate pipes lead to two separate terminals One draws in the air required for combustion and the other discharges the combusshytion productsThe outlets may be in different pressure zonesDo not install the air supply and discharge on opposing surfacesUse of CE-certified system

C63C63X

The installer is responsible for installing a CE-certified discharge system that complies with the manufacturers recommendations (temperature flow pressure etc)

The maximum pressure drop in the pipes ΔP must not exceed the values given in the table below The pipes must be certified for this type of use and for a temperature of more than 100 degC The terminal part of the flue gas pipe must be certified as complying with the EN 1856-1 StandardIf installing discharge and intake pipes not supplied by Remeha these must be certified for the intended type of use and their maximum pressure drop must be compliant

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 31

Configuration Principle DescriptionC83C83X

MW-2000823-01

Flue gas connection to a collective flue for sealed boilers The air supply is inshydividual via a terminal coming from outside the buildingA concentric pipe can be used to both supply the boiler with combustion air and connect to the collective flue gas discharge systemThe chimney or flue gas pipe must be suitable for such use and the system CE certified

C93C93X

AD-3001059-01

Airflue gas connection via concentric pipes in an existing chimney The air supshyply in the chimney may be installed via the existing channel or via tubing Flue gas discharge and air intake are via a vertical terminal at the top of the chimney

The air intake and discharge must be close enough to be in the same pressure zoneThe minimum cross-sections are shown in the table belowThe flue system must be suitable for the intended use and the system CE certishyfied

Tab21 Minimum dimensions of the duct or pipe C93 C93X

Version (D) Without air supply With air supplyRigid 80 mm Oslash 130 mm 130 x 130 mm Oslash 140 mm 130 x 130 mmRigid 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmRigid 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmFlexible 80 mm Oslash 130 mm 130 x 130 mm Oslash 145 mm 130 x 130 mmFlexible 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmFlexible 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmConcentric 80125 mm Oslash 145 mm 145 x 145 mm Oslash 145 mm 145 x 145 mmConcentric 100150 mm Oslash 170 mm 170 x 170 mm Oslash 170 mm 170 x 170 mmConcentric 150200 mm Oslash 270 mm 270 x 270 mm - -

ImportantThe duct must comply with the air density requirements of the local regulations

Important

Only original components are authorised for connection to the boiler and for the terminalThe clear section must comply with the standardThe chimney must be swept before installing the discharge flue

CautionEnsure that the flue gas discharge pipes are securely attached to the wall with suitable retaining flanges to prevent any damage and guarantee the tightness of every gasket in the circuit

CautionThe minimum gradient of the condensates discharge pipe from the boiler to the waste water discharge must be 1 cm per linear metre

Fig22 Minimum dimensions of the duct or pipe C93 C93X

AD-3000330-03

D

Oslash

D

5 Installation

32 Gas 120 ACE 7717202 - v03 - 24062019

572 Lengths of the airflue gas pipes

The maximum lengths (Lmax) given in the table are valid for pipes in which the horizontal sections do not exceed one metre in total For each additional metre of horizontal pipe a multiplication coefficient of 12 must be applied when calculating the total length L The total length L is calculated by adding the lengths of the straight airflue gas pipes and the equivalent lengths of the other componentsAlways ensure that L is less than Lmax

ImportantFor the list of flue gas system accessories and the equivalent lengths refer to the current price list

Tab22 Lengths of the airflue gas pipes in metresConfigurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 100 mm 26 24 19

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 110 mm 40 40 40

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 110 mm 295 24 175

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 80125 mm - - -

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 100150 mm 9 8 59

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 80125 mm - - -

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 100150 mm 115 10 94

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 80125 mm over 2x80 mm

- - -

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 100150 mm over 2x100 mm

23 175 Air 11Flue gases 5

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm110 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 110150 mm110 mm

16 132 10

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 33

Configurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 110150 mm110 mm

165 135 94

Tab23 PPS pipe reduction for each element used

Diameter 80 mmSingle

80125 mmConcentric

100 mmSingle

100150 mmConcentric

45deg elbow 12 m 10 m 11 m 10 m87deg elbow 19 m 15 m 20 m 37 mStraight inspection tube 03 m 06 m - 10 m87deg inspection elbow 19 m 20 m 48 m -Inspection T 42 m 27 m 56 m 25 mInspection tube for flexible pipe 03 m - 05 m -

573 Dimensions of flue gas outlet pipe

WarningThe pipes connected to the flue gas adapter must satisfy the following dimension requirements

d1 External dimensions of flue gas outlet pipe

Tab24 Dimensions of pipe d1 (min-max)80 mm 793 - 803 mm100 mm 993 - 1003 mm150 mm 149 - 151 mm

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipe

Tab25 Dimensions of pipe d1 (min-max) D1 (min-max)8080 mm 793 - 803 mm 793 - 803 mm100100 mm 993 - 1003 mm 993 - 1003 mm110110 mm 1093 - 1103 mm 1093 - 1103 mm150150 mm 149 - 151 mm 149 - 151 mm

Fig23 Dimensions of open connection

AD-3001094-01

oslashd1

Fig24 Dimensions of parallel connection

AD-3000963-01

oslashd1 oslashD1

5 Installation

34 Gas 120 ACE 7717202 - v03 - 24062019

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipeL1 Length difference between flue gas outlet pipe and air supply pipe

Tab26 Dimensions of pipe d1 (min-max) D1 (min-max) L1

(1) (min-max)80125 mm 793 - 803 mm 124 - 1255 mm 0 - 15 mm100150 mm 993 - 1003 mm 149 - 151 mm 0 - 15 mm

(1) Shorten the inner pipe if the length difference is too great

574 Connection to the flue gas pipe

At delivery the flue gas outletair supply is fixed inside the boiler

1 Using a long tool unlock and remove the boilers front door2 Remove the boiler outlet

3 Two options for connection to the flue gas pipe

Option Description3a Connection to a vertical flue gas pipe Position the flue gas

outletair supply directly at the boiler outlet3b Connection to a horizontal flue gas pipe Insert an outlet elshy

bow ( not supplied) before the flue gas outletair supply

ImportantLubricate the gaskets on the flue system during assembly

Fig25 Dimensions of concentric connection

AD-3000962-01

oslashd1

L1

oslashD1

Fig26

MW-2000867-02

1

2

1

Fig27

3a 3b

MW-2000868-01

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 35

Fastening the coaxial pipes Fasten the intake pipes with two galvanised Oslash 42 mm screws with a maximum length of 16 mm

CautionBefore fixing the screws make sure that at least 45 cm of pipe is inserted in the gasket of the other pipe

WarningGuarantee a minimum pipe slope towards the boiler of at least 5 cm per metre

Fig28 Fastening the coaxial pipes using screws

BO-0000030

16 mm

5 Installation

36 Gas 120 ACE 7717202 - v03 - 24062019

6 Operation

61 Settings

To configure the installation and use the boiler please refer to the control unit manual

6 Operation

7717202 - v03 - 24062019 Gas 120 ACE 37

7 Maintenance

71 General

We recommend having the boiler inspected and serviced at regular intervals

CautionDo not neglect to service the boiler Contact a qualified professional or take out a maintenance contract for the obligatory annual servicing of the boilerFailure to service the appliance voids the warranty

Danger of electric shockBefore service work is started the boiler has to be de-energised and secured from accidentally being switched back on

CautionHave an inspection carried out and the flues swept at least once a year or more depending on the regulations in force in your country

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

CautionAfter maintenance or repair work check the entire heating system to ensure that there are no leaks

CautionOnly genuine spare parts may be used

72 Specific maintenance operations

721 Cleaning the siphon

1 Remove the flue gas outlet discharge pipe

2 Remove the condensate discharge pipe 3 Remove the screw from the siphon

Fig29

1

MW-2000903-01

Fig30

2

3

MW-2000904-01

7 Maintenance

38 Gas 120 ACE 7717202 - v03 - 24062019

4 Pull the siphon downwards to disengage it and pivot it to release it

5 Flush the siphon 6 Drain the siphon

7 Fill the siphon with clean water up to the mark 8 Lubricate the siphon gasket9 Re-engage the siphon and refit the screw

10 Refit the two pipes

722 Checking the ionisation current

1 Check the ionisation current at full load and at low loadThe value is stable after 1 minute

2 Clean or replace the ionisationignition electrode if the value is lower than 4 microA

Fig31

4

90deg

MW-2000905-01

Fig32

MW-2000843-01

Fig33

MW-2000844-01

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 39

723 Replace the ionizationignition electrode

The ionizationignition electrode must be replaced if

The ionization current is lt 4 microAThe electrode is damaged or worn

1 Remove the plug of the electrode from the igniter

ImportantThe ignition cable is fixed to the electrode and therefore may not be removed

2 Remove the two screws3 Remove the entire component4 Fit the new ionizationignition electrode with a new seal5 Reassemble the unit in the reverse order to disassembly

724 Servicing the forced flue connection pipes

1 Open the inspection hatches or remove the pipes2 Check that the air supply and discharge pipes are not blocked

If necessary clean the discharge pipe3 Check the tightness of the flue gas system4 Replace the tightness gaskets and if necessary any sections of pipe

until tightness is perfect

725 Checking the burner and cleaning the heat exchanger

1 Remove the air inlet flue on the venturi2 Loosen the gland on the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

Fig34

AD-0000088-01

4

1

2

3

Fig35 Removing the fan

AD-3001178-01

1

3

4

2

5

7 Maintenance

40 Gas 120 ACE 7717202 - v03 - 24062019

6 Remove the front plate from the heat exchanger7 Carefully lift the front plate including the burner and fan away from

the heat exchanger

8 Use a vacuum cleaner fitted with a special endpiece (accessory) to clean the top part of the heat exchanger (combustion chamber)

9 Vacuum again without the top brush on the end piece10 Clean the lower section of the heat exchanger with the special

cleaning blade (accessory)11 Check (eg using a mirror) whether any visible contamination has

been left behind If it has remove it with the vacuum cleaner12 Check that the burner cover of the dismantled burner is free from

cracks andor damage If not replace the burnerServicing the burner is usually not necessary it is self-cleaning Use compressed air to carefully blow away any dust

13 Reassemble the unit in reverse order

CautionRemember to reconnect the fan plugCheck that the gasket is correctly positioned between the mixing elbow and the heat exchanger (the gasket must lie absolutely flat in the appropriate groove to ensure that no gas can leak)Tighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the front plate nuts with a torque wrench to the firmness of 10 Nm

14 Open the gas supply and switch the power supply to the boiler back on

Fig36 Removing the front plate fan and burner

AD-3001179-01

6

7

Fig37 Cleaning the heat exchanger

AD-3001180-01

10

8 9

12

11

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 41

726 Checking the non-return valve

1 Remove the air inlet pipe from the venturi2 Unscrew the gland of the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

6 Dismantle the fan7 Remove the fan together with the gas valve unit8 Inspect the non-return valve and replace it in the event of a defect or

damage or if the maintenance kit contains a non-return valve9 Reassemble in the reverse order

CautionRemember to reconnect the fan plugTighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the two fan nuts with a torque wrench to the firmness of 38 Nm

Fig38 Disconnecting the fan

AD-3001178-01

1

3

4

2

5

Fig39 Checking the non-return valve

AD-3001181-01

2x

68

7

9

7 Maintenance

42 Gas 120 ACE 7717202 - v03 - 24062019

8 Decommissioning

81 Decommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

To switch off the boiler temporarily or permanently proceed as follows

1 Switch the boiler off2 Cut the electrical power to the boiler3 Close the gas valve on the boiler4 Drain the central heating system or ensure frost protection5 Close the door of the boiler to prevent air circulating inside it6 Remove the pipe connecting the boiler to the chimney and close the

nozzle with a plug

82 Recommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

Should it prove necessary to carry out the recommissioning of the boiler proceed as follows

1 Re-establish electrical power to the boiler2 Fit and check the flue gas pipe3 Fill the siphon with water4 Fill the central heating system5 Open the boiler gas valve6 Start up the boiler

8 Decommissioning

7717202 - v03 - 24062019 Gas 120 ACE 43

9 Disposal and recyclingCautionOnly qualified professionals are permitted to remove and dispose of the boiler in accordance with local and national regulations

If you need to remove the boiler proceed as follows

1 Switch off the boiler2 Cut the power supply to the boiler3 Close the main gas valve4 Close the water mains5 Close the gas valve on the boiler6 Drain the installation7 Remove the airflue gas pipes8 Disconnect all pipes9 Dismantle the boiler

Fig40

MW-3000179-03

9 Disposal and recycling

44 Gas 120 ACE 7717202 - v03 - 24062019

10 Environmental

101 Energy savings

Energy-saving advice

Do not block ventilation outletsDo not cover the radiators Do not hang curtains in front of the radiatorsInstall reflective panels behind the radiators to prevent heat lossesInsulate the pipes in rooms that are not heated (cellars and lofts)Close the radiators in rooms not in useDo not run hot (or cold) water pointlesslyInstall an energy-saving shower head which can save up to 40 energyTake showers rather than baths A bath consumes twice as much water and energy

102 Room thermostat and settings

Various models of room thermostat are available The type of thermostat used and the parameter selected impact total energy consumption

A modulating regulator which may be combined with thermostatic valves is eco-friendly in terms of energy and offers an excellent level of comfort This combination allows you to set the temperature separately for each room However do not install thermostatic radiator valves in the room in which the room thermostat is locatedComplete opening and closing of the thermostatic radiator valves causes undesirable variations in temperature Therefore these must be openedclosed progressivelySet the room thermostat to a temperature of approximately 20degC to reduce heating costs and energy consumptionLower the thermostat setting to approximately 16degC at night or when you are not at home This reduces heating costs and energy consumptionLower the thermostat setting well before airing the roomsSet the water temperature to a lower level in summer than in winter (eg 60degC and 80degC respectively) when an ONOFF thermostatis usedWhen clock thermostats and programmable thermostats are to be set do not forget to take any holidays and days when no one is at home into account

10 Environmental

7717202 - v03 - 24062019 Gas 120 ACE 45

11 Warranty

111 General

We would like to thank you for buying one of our appliances and for your trust in our productIn order to ensure continued safe and efficient operation we recommend that the product is regularly inspected and maintainedYour installer and our service department can assist with this

112 Terms of warranty

The following provisions do not affect the application in favour of the buyer of the legal provisions with regard to hidden defects that are applicable in the buyers countryThis appliance comes with a warranty that covers all manufacturing faults the warranty period will commence on the date of purchase stated on the installers invoiceThe warranty period is stated in our price listAs a manufacturer we can by no means be held liable if the appliance is used incorrectly is poorly maintained or not maintained at all or is not installed correctly (it is your responsibility to ensure that installation is carried out by a qualified installer)In particular we cannot be held liable for material damage intangible losses or physical injury resulting from an installation that does not comply with

Legal or regulatory requirements or provisions laid down by the local authoritiesNational or local regulations and special provisions relating to the installationOur manuals and installation instructions in particular in terms of regular maintenance of the appliances

Our warranty is limited to the replacement or repair of the parts found to be defective by our technical services team excluding labour transfer and transport costsOur warranty does not cover replacement or repair costs for parts that may become defective due to normal wear incorrect usage the intervention of unqualified third parties inadequate or insufficient supervision or maintenance a mains supply that is not appropriate or the use of unsuitable or poor quality fuelSmaller parts such as motors pumps electrical valves etc are guaranteed only if these parts have never been dismantledThe rights established in European Directive 9944EEC implemented by legal decree No 24 of 2 February 2002 and published in Official Journal No 57 of 8 March 2002 remain in force

11 Warranty

46 Gas 120 ACE 7717202 - v03 - 24062019

12 Spare parts

121 General

If inspection or maintenance work bring to light the need to replace a component in the boilerProvide the reference number given in the spare parts list when ordering a spare part

CautionOnly genuine spare parts may be used

122 Spare parts lists

1221 Exchanger

Fig41

MW-6000743-01

811x

7

7

4

2

16

3

10

119

65

1

13

12

18

14

19

15

18

17

Tab27

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

1 7699615 Complete exchanger x 1 7699614 Complete exchanger x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 47

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

2 S101564 Exchanger front plate x x x3 S54731 Exchanger inspection hatch insulation x x x4 S57241 Exchanger inspection hatch gasket x x x5 S100052 M4x10 self-locking screw (x20) x x x6 S54754 FURQ65 burner x 6 S57477 FURQ85 burner x x7 7623837 Set of 10 k NTC sensors x x x8 S54755 M6 nut (x20) x x x9 7659755 M4x10 screw (x10) x x x10 S53489 Electrode gasket (x10) x x x11 7692359 Ignition electrode x x x12 7631936 Flue gas flow pipe diameter 100 mm x x x13 7624643 NTC 2x20 k flue gas sensor with gasket x x x14 7624619 Ignition transformer x x x15 S56987 ZP M6x16 screw (x10) x x x16 7616253 Valve with support x x x17 7680596 Exchanger bracket x 17 7673616 Exchanger bracket x x18 7701752 Gasket diameter 100 mm (x5) x x x19 7632708 Earth electric clip (x2) x x x

1222 Gas circuit

Fig42

MW-6000744-01

3

2

5

6

9

4

8

10

7

12

11

1

14

13

13

12 Spare parts

48 Gas 120 ACE 7717202 - v03 - 24062019

Tab28Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 S101543 Silencer x 1 S101520 Silencer x 1 S101578 Silencer x2 S54777 Venturi gasket (x5) x 2 S59215 Gas valve-venturi gasket (x5) x 2 S101593 Gaskets (kit) x3 S101726 Fan RG 1481200-3633 x x 3 S100036 Fan RG 148 1200-3633-010202 x4 S101596 Gas valve VK4115v1386 x 4 S101597 Gas valve VK4115vb1012 x 4 S101510 Gas valve GB-ND 057 XP x5 S54766 Venturi x 5 S57488 Venturi x 5 S101595 Venturi VMS 45900450-010 x6 S59215 Gas valve-venturi gasket (x5) x x 7 S57827 Gas valve unit flange x8 S57828 268x22x25 O-ring (x5) x9 S101631 Diaphragm x10 7616249 Flue gas sensor cap (5x) x x x11 S56155 238x177x2 gasket (x20) x x x12 95760050 C HC M4-12 88 ZN3 screw x x x13 S48512 M5-10 screw (x10) x x x14 S101590 Silencer retaining clip x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 49

1223 Hydraulic circuit

Fig43

MW-6000745-01

1

14

6

9

11

8

12

5

37

9

10

2

4

13

Tab29Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7680598 Complete flow pipe x 1 7670807 Complete flow pipe x x2 7672557 Complete return pipe x x x3 7674076 Complete gas pipe x 3 7680434 Complete gas pipe x 3 7670720 Complete gas pipe x4 7698560 HUBA G38 pressure gauge x x x5 94994712 PVC pipe diameter 16x12 x x x6 7699357 Water deflector diameter 100 mm x x x7 94902073 Drain valve 12 x x x8 94918138 Air vent x x x9 95013064 44x32x2 mm green gasket x x x10 95013060 24x17x2 mm green gasket x x 10 95013062 30x21x12 mm green gasket x11 7692329 Condensate hose x x x13 7706103 Assembled siphon height 160 mm x 13 7706038 Assembled siphon height 250 mm x x14 7103731 Condensate drain pan gasket x x x

12 Spare parts

50 Gas 120 ACE 7717202 - v03 - 24062019

1224 Boiler body

Fig44

MW-6000746-01

2

2

1

6

3

34

5

4

Tab30Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7686377 Assembled frame x 1 7686139 Assembled frame x x2 7679958 117x34 handle diameter 65 mm x x x3 7676037 Wheel x x x4 7688301 Frame lateral gasket x 4 7688008 Frame lateral gasket x x5 7688353 Front panel gasket x 5 7688007 Front panel gasket x x6 7693874 R4-05 front panel lock x x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 51

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

E toimistoestsystemsfi

Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 6: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

DangerIf you smell gas1 Do not use a naked flame do not smoke do

not operate electrical contacts or switches (doorbell light motor lift etc)

2 Shut off the gas supply3 Open the windows4 Locate the probable leak and seal it

immediately5 If the leak is before the gas meter contact the

gas supplier

DangerIf you smell flue gases1 Switch off the appliance2 Open the windows3 Locate the probable source of the flue gas

leak and fix it immediately

WarningThe condensation drain must not be changed or sealed If a condensate neutralisation system is used the system must be cleaned regularly in accordance with the instructions provided by the manufacturer

For the end user

DangerIf you smell gas1 Do not use a naked flame do not smoke do

not operate electrical contacts or switches (doorbell light motor lift etc)

2 Shut off the gas supply3 Open the windows4 Evacuate the property5 Contact a qualified professional

DangerIf you smell flue gases1 Switch off the appliance2 Open the windows3 Evacuate the property4 Contact a qualified professional

1 Safety

6 Gas 120 ACE 7717202 - v03 - 24062019

12 Recommendations

DangerFor safety reasons we recommend fitting smoke and CO2 detectors and alarms at suitable places in your home

CautionThe boiler must always be connected to the protective earthingEarthing must comply with the prevailing installation standardsEarth the appliance before making any electrical connections

For the type and calibre of the protective equipment refer to the chapter Electrical Connections in the Installation and Service Manual

CautionIf a power cord comes with the appliance and it turns out to be damaged it must be replaced by the manufacturer its after sales service or persons with similar qualifications in order to obviate any danger

CautionA disconnection device must be fitted to the permanent pipes in accordance with the installation rules

CautionPower the appliance via a circuit that includes an omni-polar switch with contact opening distance of 3 mm or more

CautionDrain the boiler and heating system if the home is left empty for a long period of time and there is a chance of frost

CautionRemove the boiler casing only to perform maintenance and repair work Always put the casing back in place after such work

CautionTo enjoy warranty cover no modifications must be made to the boiler

1 Safety

7717202 - v03 - 24062019 Gas 120 ACE 7

CautionThe frost protection function only protects the boiler not the heating system

CautionThe frost protection function does not work if the boiler is powered off

CautionThe appliance should be switched to Summer or Frost Protection mode rather than be switched off in order to guarantee the following functions

Avoidance of pumps blockingFrost Protection

ImportantRespect the minimum and maximum water inlet pressure to ensure correct operation of the boiler refer to the chapter Technical Specifications

ImportantOnly qualified professionals are permitted to install the boiler in accordance with prevailing local and national regulations

ImportantNever remove or cover labels and data plates affixed to the boilerLabels and data plates must be legible throughout the entire lifetime of the boiler Immediately replace damaged or illegible instructions and warning labels

ImportantKeep this document close to the place where the appliance is installed

13 Liabilities

131 Manufacturers liability

Our products are manufactured in compliance with the requirements of the various Directives applicable They are therefore delivered with the marking and any documents necessary In the interests of the quality of our products we strive constantly to improve them We therefore reserve the right to modify the specifications given in this documentOur liability as manufacturer may not be invoked in the following cases

1 Safety

8 Gas 120 ACE 7717202 - v03 - 24062019

Failure to abide by the instructions on installing and maintaining the applianceFailure to abide by the instructions on using the applianceFaulty or insufficient maintenance of the appliance

132 Installers liability

The installer is responsible for the installation and initial commissioning of the appliance The installer must observe the following instructions

Read and follow the instructions given in the manuals provided with the applianceInstall the appliance in compliance with prevailing legislation and standardsCarry out initial commissioning and any checks necessaryExplain the installation to the userIf maintenance is necessary warn the user of the obligation to check the appliance and keep it in good working orderGive all the instruction manuals to the user

133 Users liability

To guarantee optimum operation of the system you must abide by the following instructions

Read and follow the instructions given in the manuals provided with the applianceCall on a qualified professional to carry out installation and initial commissioningGet your installer to explain your installation to youHave the required inspections and maintenance carried out by a qualified installerKeep the instruction manuals in good condition close to the appliance

1 Safety

7717202 - v03 - 24062019 Gas 120 ACE 9

2 Symbols used

21 Symbols used in the manual

This manual uses various danger levels to draw attention to special instructions We do this to improve user safety to prevent problems and to guarantee correct operation of the appliance

DangerRisk of dangerous situations that may result in serious personal injury

Danger of electric shockRisk of electric shock

WarningRisk of dangerous situations that may result in minor personal injury

CautionRisk of material damage

ImportantPlease note important information

SeeReference to other manuals or pages in this manual

22 Symbols used on the appliance

1 Alternating current2 Protective earthing3 Before installing and commissioning the appliance carefully read

the instruction manuals provided4 Dispose of used products through an appropriate recovery and

recycling structure5 Caution danger of electric shock live parts Disconnect the mains

power prior to carrying out any work

Fig1

1 2

MW-2000068-1

1

2

3

4

5

2 Symbols used

10 Gas 120 ACE 7717202 - v03 - 24062019

3 Technical specifications

31 Homologations

311 Directives

This product has been manufactured and put into circulation in accordance with the requirements and standards of the following European Directives

Gas Appliances Regulation (EU) (2016426)

Pressure Equipment Directive 201468EU

Electromagnetic Compatibility Directive (201430EU)

Low Voltage Directive (201435EU)

Efficiency Directive (9242EEC)

European Ecodesign Directive (2009125EC)EU Regulation (8132013)

Energy Labelling Framework Regulation (EU) (20171369)EU Regulation (8112013)

BS 7074 Part 1 Application selection and installation of expansion vessels and ancillary equipment for sealed water systemsBS 6644 Specification for the installation of gas-fired condensing boilers with a nominal output exceeding 70 kWBS EN 12828 Design for water-based heating systemsBS EN 13831 Closed expansion vessels

Apart from the legal provisions and Directives the additional Directives described in these instructions must also be observedFor all provisions and Directives referred to in these instructions it is agreed that all addenda or subsequent provisions will apply at the time of installation

312 EC Declaration of Conformity

The unit complies with the standard type described in the EC declaration of conformity It has been manufactured and commissioned in accordance with European directivesThe original declaration of conformity is available from the manufacturer

313 Gas categories

Tab1 Czech Republic Spain Greece Portugal Switzerland UK

Category Gas type Connection pressure (mbar) Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

II2H3BP G20 (H gas) 20 X X X G30G31 (butanepropane) 303750 X X X

314 Certifications

Tab2 CertificationsCE number 0085CT0009NOx class 6 (EN 15502-1)

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 11

Type of flue gas connection Chimney

B23B23PB33

Forced flue

C13C13XC33C33XC43C43XC53C63C63XC83C83XC93C93X

315 Factory test

Before leaving the factory each boiler is optimally set and tested for

Electrical safetySettings (CO2)Water tightnessGas tightnessParameter setting

32 Technical data

Tab3 GeneralGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Nominal heat output (Pn)Central heating operation (80 degC60 degC)

minndashmax kW 120 - 615 141 - 842 189 - 1039

Nominal heat output (Pn)Central heating operation (50 degC30 degC)

minndashmax kW 135 - 650 158 - 895 212 - 1097

Nominal input power (Qn)Heating mode (Hi)

minndashmax kW 122 - 620 146 - 860 196 - 1070

Nominal input power (Qn)Heating operation (Hi) G31 (propane)

minndashmax kW 122 - 620 221 - 860 212 - 1070

Nominal input power (Qn)Central heating operation (Hs)

minndashmax kW 137 - 689 162 - 955 217 - 1189

Full load heating mode efficiency (Hi) (8060 degC) (9242EEC)

992 979 971

Full load heating mode efficiency (Hi) (50 degC30 degC)

1046 1041 1025

Part load heating mode efficiency (9242EEC) (return temperature 30 degC)

1104 1081 108

Tab4 Gas and flue gas valuesGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115G20 gas consumption (H gas)(1) minndashmax m3h 13 - 66 15 - 91 20 - 117Gas consumption G31 (propane)(1)

minndashmax m3h 05 - 25 09 - 35 09 - 45

3 Technical specifications

12 Gas 120 ACE 7717202 - v03 - 24062019

Gas 120 ACE Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

Gas resistance G20 (H gas)(2) max mbar 20 25 30BREAM NOx mgkWh 32 29 35Flue gas quantity minndashmax m3h 18 - 90 22 - 125 30 - 160Flue gas temperature minndashmax degC 30 - 120 30 - 120 30 - 120Maximum counter pressure (Pn) Pa 100 160 220

(1) Gas consumption based on lower heating value in standardised conditions T=28815 K p=101325 mbar Gag 3033 G25 2925 G31 8800 MJm3

(2) Gas resistance between boiler connection and measurement point on the gas valve unit

Tab5Gas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Gas inlet pressure G20 (H gas) minndashmax mbar 17 - 25 17 - 25 17 - 25G30G31 gas inlet pressure (ButanePropane) minndashmax mbar 37 - 50 37 - 50 37 - 50G31 gas inlet pressure (Propane) minndashmax mbar 37 - 50 37 - 50 37 - 50

Tab6 Central heating circuit dataGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Water content l 71 101 101Water operating pressure min bar 08 08 08Water operating pressure (MOP) max bar 40 40 40Water temperature max degC 110 110 110Operating temperature max degC 90 90 90Pressure drop secondary circuit (ΔT = 20 K) mWC 17 16 26Maximum permitted temperature difference(1) max degC 40(1) 40(1) 35(1)

(1) with a maximum flow temperature of 80 degC

Tab7 Electrical dataGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Supply voltage (AC) V 230 230 230Power consumption ndash full load max W 92 124 180Power consumption - low load max W 25 24 344Power consumption ndash standby max W 6 5 9Electrical protection rating IP X1B X1B X1BFuses Main A 10 10 10

Tab8 Other dataGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Total weight (empty) kg 98 109 109Average acoustic level at a distance of one meshytre from the boiler

dB(A) 40 45 45

SeeThe back cover for contact details

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 13

321 ErP technical parameters

Tab9 Technical parameters for boiler space heatersProduct name Gas 120 ACE

- 65Gas 120 ACE - 90

Gas 120 ACE - 115

Condensing boiler Yes Yes YesLow-temperature boiler(1) No No NoB1 boiler No No NoCogeneration space heater No No NoCombination heater No No NoRated heat output Prated kW 62 84 104

Useful heat output at rated heat output and high temperature regime(2)

P4 kW 615 842 1039

Useful heat output at 30 of rated heat output and low temperature regime(1)

P1 kW 205 279 347

Seasonal space heating energy efficiency ƞs 94 - -Useful efficiency at rated heat output and high temperature regime(2)

ƞ4 894 882 875

Useful efficiency at 30 of rated heat output and low temperature regime(1)

ƞ1 995 974 973

Auxiliary electricity consumption Full load elmax kW 0092 0124 0180Part load elmin kW 0025 0024 0034Stand-by PSB kW 0006 0005 0009

Other specifications Standby heat loss Pstby kW 0114 0119 0119Ignition burner power consumption Pign kW - - -Annual energy consumption QHE GJ 190 - -Sound power level indoors LWA dB 55 61 60Emissions of nitrogen oxides NOx mgkWh 29 41 41(1) Low temperature means for condensing boilers 30degC for low temperature boilers 37degC and for other heaters 50degC return temperature

(at heater inlet)(2) High temperature regime means 60 degC return temperature at heater inlet and 80 degC feed temperature at heater outlet

SeeThe back cover for contact details

322 Circulating pump (not provided)

The boiler is supplied without a circulating pump Take the boiler pressure drop and system pressure drop into account when selecting a pump

CautionThe maximum output of a pump that can be connected is 200 W Above this use an auxiliary relay adapted to the pump output

If possible install the pump in direct connection to the boiler on the return circuit

For more information see

Circulating pump

The maximum difference in temperature between the flow water and the return water and the speed at which the boiler temperature increases are restricted by the boilers control system

3 Technical specifications

14 Gas 120 ACE 7717202 - v03 - 24062019

Tab10 Minimum flow to be guaranteedMinimum flow to be guaranteed in the boiler Unit Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Minimum flow rate litreshour 290 340 455

A Dynamic head in mWcB Water flow rate (m3h)C Pressure drops

ΔT Maximum temperature difference between the flow water and the return water in the boiler

A Dynamic head in mWcB Water flow rate (m3h)C Pressure drops

ΔT Maximum temperature difference between the flow water and the return water in the boiler

A Dynamic head in mWcB Water flow rate (m3h)C Pressure drops

ΔT Maximum temperature difference between the flow water and the return water in the boiler

323 Sensor specifications

Outside temperature sensor specifications

Tab11 Outside temperature sensorTemperature degC -20 -16 -12 -8 -4 0 4 8 12 16 20 24Resistance Ω

(Ohm)2392 2088 1811 1562 1342 1149 984 842 720 616 528 454

Fig2 Pressure drops for Gas 120 ACE - 65

MW-2000671-3

T=20KT=40K

175

Fig3 Pressure drops for Gas 120 ACE - 90

MW-2000673-3

T=20KT=40K

362

Fig4 Pressure drops for Gas 120 ACE - 115

MW-2000674-3

T=20KT=35K

447

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 15

Boiler sensor return sensor

Tab12 Boiler sensor return sensorTemperature in degC

-20 -10 0 10 20 25 30 40 50 60 70 80 90 100 110

Resistance in Ω

98932 58879 36129 22804 14773 10000 9804 6652 4607 3252 2337 1707 1266 952 726

Circuit flow sensor domestic hot water sensor and system sensor

Tab13 Circuit flow sensor domestic hot water sensor and system sensorTemperature in degC 0 10 20 25 30 40 50 60 70 80 90Resistance in Ω 32014 19691 12474 10000 8080 5372 3661 2535 1794 1290 941

Specifications of the boiler flue gas sensor

Tab14 Boiler flue gas sensorTemperature degC 0 10 20 30 40 50 60 70 80 90 100Resistance Ohm 66000 40000 20000 16100 10600 7160 4940 3480 2490 1810 1340

33 Dimensions and connections

Fig5

MW-2000684-03

A

D

E

FG

BC

600 605150

92

132

240

141

418

5

2

34

107

105

95

100

1

255145

1 Heating circuit flow (R114)2 Gas inlet (G34)3 Heating circuit return (R114)

4 Condensate discharge (DN22)5 Flue gas pipe

Tab15 Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 1155 Diameter 100150 mm Diameter 100150 mm Diameter 100150 mmA (mm) 1340 1562 1562B (mm) 1164 1386 1386C (mm) 1082 1304 1304D (mm) 971 1193 1193

3 Technical specifications

16 Gas 120 ACE 7717202 - v03 - 24062019

Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 115E (mm) 410 632 632F (mm) 87 303 303G (mm) 128 350 350

34 Electrical diagram

341 Electrical diagram of boiler

Fig6

CU-GH-08

X3X4X5

X6

X8

1

2

3

1

2

3

X14

X7

X10

X11

X13

X12

1

2

3

4

5

25 A

Nrsquo

1

2

3

4

YE

GY

BR

GR

1

2

3

4

1

2

3

4

1

2

N L

1

2

1

2

OPTION

PRESSURE

SWITCH

MW-2000850-04

230V

1 2 3 4 5 6 7 8 9 10

24V

12 11

BL OR

10 9 8 7 6

GR BK RE YE BL

5 4 3 2 1

OR BK RE YE BL

Lrsquo

BL

GY

GY

GY

BL BR

GY

BL

BR

GY BL

BR

GY

BR

GR BK RE YE BL OR BK RE YE BL

BK

BL

BR

RE

GR

GR

BK

GR

GY

YE

BR

BL

OR

1

2

3

4

5

1

2

3

RE

BK

GR

BR

BK

BL

GR

1

2

BR

GR

GY

RE BL

BL

BK

BK

BR YE

GR PI

BL

BL

GR

PI

GR

RE

BR

YE

BK

BK

BR

GY

BL

BL

BR

GY

GY

BR

BL BL GY

BR

BL

BR

BK

GYWH

GY

BL

GY

BL

BR

BK

WH

BL

GY

1 12

4

5

2

3

6

7

8

9

10

11

16

17

15

14

13

1 230 V connector connection with control unit2 Mains interference filter3 Earthing of boiler front door4 Return sensor (TR)5 Flow sensor (FTS)6 Flue gas sensor7 Flue gas pressure switch (specific option for the

Netherlands)8 Gas valve unit (GB)9 Igniter (IT)

10 Ionizationignition electrode (E)11 Fan supply12 24 V connector connection with control unit13 Storage information (CSU)14 Pressure sensor (PS)15 Fan control (PWM)16 Light17 Control unit (CU-GH08)BK BlackBL Blue

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 17

BR BrownGY GreenYellowYE YellowOR OrangeGR Green

PI PinkGY GreyRD RedWH White

3 Technical specifications

18 Gas 120 ACE 7717202 - v03 - 24062019

4 Description of the product

41 General description

Gas 120 ACE floor-standing condensing gas boilers have the following characteristics

Low polluting emissionsHigh-efficiency heatingElectronic control panelFlue gas discharge by a forced flue or chimney type connection with bi-flow option

The boilers are perfectly suited to cascade installation

42 Operating principle

421 Gasair setting

The casing fitted to the boiler is also used as an air box Air is drawn in by the fan and gas injected into the Venturi by the fan intake The fan speed is modulated according to the settings the heat demand and the actual temperatures measured by the temperature sensors The gas and air are mixed in the Venturi The gasair ratio command function accurately adjusts the quantities of gas and air required This provides optimum combustion over the entire output range The gasair mixture is sent to the burner located upstream of the heat exchanger

422 Settings and safety devices

ImportantThe settings and safety devices are only operational if the boiler is powered up

Tab16 Description of the safety devicesDevice DescriptionNTC flue gas sensor The control panel blocks the gas supply to the burner in the event of overheatingFlame detector by ionisation The boiler is put into safety lock-down in the event of gas shortage or incomplete cross-

lighting on the burnerHydraulic pressure switch When the pressure switch detects a pressure lower than 08 bar (008 MPa) a warning

message is displayed without stopping the circulating pumpPost-circulating pump After the burner stops depending on the room thermostat setting and if in heating

mode the circulating pump runs for a further 3 minutesFrost protection device When the flow temperature is lower than 5 degC the burner starts up and runs until the

flow temperature reaches 15 degC This device runs under the following conditions

The boiler is switched onThe gas supply is workingThe pressure in the system is higher than 05 bar (005 MPa)

Anti-blocking of the pump If there are no heating or domestic hot water requirements for 24 consecutive hours the pumps start up automatically and run for 10 seconds

Anticipatory start-up of the circulatshying pumps

In heating mode only the appliance can start up the circulating pumps before burner igshynition The duration and activation of anticipatory start-up depends on the installation reshyquirements and the operating temperatures The duration of anticipatory start-up of the circulating pumps therefore varies from a few seconds to several minutes

4 Description of the product

7717202 - v03 - 24062019 Gas 120 ACE 19

43 Main boiler components

1 Control unit2 Flow sensor3 Light4 Ignitionionization electrode5 Non-return valve6 Gas valve7 Heat exchanger (heating circuit)8 Return sensor9 Pressure gauge sensor

10 CU-GH-08 PCB housing11 Siphon12 Flue gas circuit13 Intake silencer14 Venturi15 Flue gas sensor16 Fan17 Automatic air vent18 Flue gas measuring point19 Combustion air measuring point20 Flue gas outletair supply

44 PCBs

441 Description of the CU-GH-08 PCB

This PCB controls the core boiler components sensors actuators and gas valveThis PCB is factory-fitted and fully cabled and does not require any operationThe sensors valves circulating pumps etc are connected at the control unit

45 Standard delivery

The Gas 120 ACE boiler comes in 2 packages including

Tab17 Package contentsPackage ContentPackage 1 A floor-standing gas boiler

A flue system outlet with a measuring point (stored in the boiler)An outdoor temperature sensorA data plateAn installation and service manual

Package 2 A control unitTwo control unit mounting bolts on the boilerA user manual

46 Accessories amp options

A detailed list of accessories and options can be found in our catalogue

Fig7

MW-2000670-02

16

7 13

12

11

10

19

18

20

17

14

15

6

5

2

9

4

3

1

8

4 Description of the product

20 Gas 120 ACE 7717202 - v03 - 24062019

5 Installation

51 Installation regulations

CautionInstallation of the boiler must be done by a qualified professional in accordance with prevailing local and national regulations

CautionA disconnection device must be fitted to the permanent pipes in accordance with the installation rules

CautionRespect the maximum water inlet pressure to ensure correct operation of the appliance referring to the Technical Specifications chapter

52 Choice of the location

Decide on the ideal position for installation bearing in mind any legal directives and the space required by the appliance

Install the boiler on a solid stable structure capable of bearing the weight of the appliance when full of water and fully equippedWhen choosing the position for installation of the boiler bear in mind the positions authorised for the combustion gas discharge outlets and the air intake ventDo not install the boiler near any heat sources

521 Data plate

The data plate is located on the back of the boilerThe data plate provides important information regarding the appliance

Serial numberModelGas categoryCN1CN2etc

Once installation is complete the second data plate supplied in the documentation bag can be affixed to a more visible part of the boilerIf the boiler is equipped with a hydraulic kit (low-loss header or plate heat exchanger) affix the data plate to the side of the boiler

522 Space required - Boiler ventilation

Decide on the ideal position for installation bearing in mind any legal directives and the space required by the appliance

Install the boiler on a solid stable structure capable of bearing the weight of the appliance when full of water and fully equippedWhen choosing the position for installation of the boiler bear in mind the positions authorised for the combustion gas discharge outlets and the air intake ventDo not install the boiler near any heat sources

Fig8

MW-6000735-01

Made in France0085

CN1 17

CN2 7

230 V 50 Hz

B23(P) - B33 - C13(X) - C33(X) - C43(X) - C53 - C63(X) - C83(X) - C93(X)

PMS= 4bar - 04MPa

Pn =

8060 degC

5030 degC

NOx class 6 (Nox lt 56 mgkWh)

Qn =Hi kW

4030 degC

189-1039

196-1070

212-1097

180W

0085CT009

Hs (G20) 217-1189

IP21Imax= 10A

Tmax= 90degC

FR

LT

IT

AT

CZ

PL

II2Esi3BP

II2H3BP

II2H3BP

II2H3BP

II2H3P

II2H3BP

II2H3BP

II2ELw3BP

G20-20mbar G25-25mbar G30G31-303750mbar

G20-20mbar G30G31 - 30mbar

G20-20mbar G30G31 - 303750 mbar

G20-20mbar G30G31 - 3037mbar

G20-20mbar G31 - 30mbar

G20-20mbar G30G31 - 50mbar

G20-20mbar G30G31-303750mbar

G20-20mbar G27-20mbar G3031-37mbar

kW

Art Nr SN A0000YYWW000

kW

kW

kW

kW

kW

ESGR PT

LU RO EE

YY-WW

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 21

Keep the boiler accessible at all timesPlace the boiler on a base to make it easier to clean the roomThe boiler can be located along a partition on one of its sides provided there is a 500 mm space on the opposite sideAllow enough space around the boiler to facilitate accessibility and maintenance The minimum recommended dimensions are shown in the illustrationMake sure there is a connection to the water drainage system close to the boiler to discharge any condensates

ImportantTo fit the boiler position the pallet with the package 25 m in front of the desired location for the installation This distance is required to allow the boiler to be removed from its pallet

Tab18Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 115

A (mm) 500 500 500B (mm) 1082 1304 1304

To allow the intake of combustion air sufficient ventilation must be provided in the boiler room the cross section and position of which must satisfy the regulations in force

Great Britain BS 5440 Part 1 and Part 2

For boilers with a nominal output of more than 70 kW Upper and lower air vents comshypulsory

BS 6644 and IGEMUP-10

Caution

Avoid any low points in the flue gas and condensate discharge circuit in order to prevent any accumulation of condensatesDo not block the air inlets in the room or the combustion product evacuation or condensation water flow pipes (even partially)

If the boiler is installed in closed premises respect the minimum dimensions given in the diagram below Also allow for openings to obviate the following hazards

Accumulation of gasOverheating of the premisesGreat Britain Minimum cross section of openings see BS 5440 Part 1 and Part 2 and BS 6644

523 Ventilation

To allow the intake of combustion air sufficient ventilation must be provided in the boiler room for which the cross section and position must satisfy the regulations in force in the country in which the boiler is installed

Great Britain BS 5440 Part 1 and Part 2

For boilers with a nominal output of more than 70 kW Upper and lower air vents comshypulsory

BS 6644 and IGEMUP-10

Fig9

MW-2000679-03

500

B

1100

AS1

S2

260

580

350

600

500

5 Installation

22 Gas 120 ACE 7717202 - v03 - 24062019

If the boiler is installed in closed premises respect the minimum dimensions given in the diagram below Also allow for openings to obviate the following hazards

Accumulation of gasOverheating of the premisesGreat Britain Minimum cross section of openings see BS 5440 Part 1 and Part 2 and BS 6644

524 Fitting the outdoor sensor

Plugs diameter 4 mmdrill diameter 6 mm

1 Choose a recommended location for the outdoor sensor2 Put the 2 plugs in place delivered with the sensor3 Secure the sensor using the screws provided (diameter 4 mm)4 Connect the cable to the outdoor temperature sensor

Recommended positions

Place the outside sensor in a position that covers the following characteristics

On a faccedilade of the area to be heated on the north if possibleHalf way up the wall of the area to be heatedUnder the influence of changes in the weatherProtected from direct sunlightEasy to access

Fig11

MW-8800N001-3

2

1

2

11

2

H

12 H (min 25 m)

12 H (min 25 m)

12 Z

H

Z

1 Optimum location2 Possible position

H Inhabited height controlled by the sensorZ Inhabited area controlled by the sensor

Positions to be avoided

Avoid placing the outside sensor in a position with the following characteristics

Masked by part of the building (balcony roof etc)Close to a disruptive heat source (sun chimney ventilation grid etc)

Fig10

MW-8800N003-6

23

4

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 23

Fig12

MW-3000014-2

53 Transport

Transport the boiler pallet with a manual or electric pallet truck

54 Unpacking and preparing the boiler

Caution

Wear gloves to handle the boilerTransport the boiler pallet with a manual or electric pallet truckUse carrying bars (not provided) to move the boiler

ImportantTo fit the boiler position the pallet with the package 25 m in front of the desired location for the installation This distance is required to allow the boiler to be removed from its pallet

1 Cut the packaging2 Remove the packaging from the boiler but leave the boiler on the

shipping pallet

ImportantThe documentation bag (user manual + accessories) is contained in the protective block

Fig13

MW-6000736-01

Manual

11

12

5 Installation

24 Gas 120 ACE 7717202 - v03 - 24062019

3 Using a long tool unlock and remove the boilers front door Disconnect the earth wire

4 Remove the mounting bolts from the unloading ramps and the boiler (4 bolts at the rear and 4 bolts at the front)

5 Pull out the unloading ramps and turn them over6 Align the ramps with the rear castor wheels on the boiler

Fig14

MW-6000761-01

3

3

Fig15

MW-6000737-01

4

4

Fig16

MW-6000738-01

5

5

6

6

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 25

7 Lock the ramps correctly onto the pallet8 Screw the unloading ramps onto the pallet9 Fold down the ends of the ramp so that they rest on the ground

10 Tilt the boiler backwards until it is resting on the castor wheels then remove it from the pallet

11 Recycle the pallet

Fig17

MW-6000770-01

9

9

8

7

Fig18

MW-6000739-02

600

350

11

10

550

5 Installation

26 Gas 120 ACE 7717202 - v03 - 24062019

12 Level the boiler using the adjustable feet(1) Factory setting 30 mm adjustment range 20 to 40 mm

CautionThe rear castor wheels must no longer be in contact with the ground

55 Hydraulic connections

551 Water treatment

In many cases the boiler and the heating system can be filled with mains water without treating the water

CautionDo not add any chemical products to the heating water without first consulting a water treatment specialist For example antifreeze water softeners products to increase or reduce the pH value chemical additives andor inhibitors These may cause faults in the boiler and damage the heat exchanger

Important

Flush the installation with at least 3 times the volume of water contained in the heating systemFlush the DHW circuit with at least 20 times its volume of water

The water in the installation must comply with following specifications

Tab19 Installation water specifications Initial commissioning Concentration (top up)Degree of acidity (untreated water) pH 65 - 85 65 - 85

Degree of acidity (treated washyter) pH 70 - 90 70 - 90

Conductivity at 25degC μScm le 500 le 500Chlorides mglitre le 50 le 50Other components mglitre lt 1 lt 1

Total water hardnessdegf 5 - 35 le 15degdH 28 - 200 le 85mmollitre(1) 05 - 35 lt 15

(1) Flow temperature less than 90degC mdash Maximum hardness 150 mmoll

Fig19

MW-6000773-01

(1)

12

12

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 27

ImportantIf water treatment proves necessary Remeha recommends the following manufacturers

CillitClimalifeFernoxPermoSentinel

552 Flushing new installations and installations less than 6 months old

Before filling the heating installation it is essential to remove any debris (copper caulking soldering flux) from the installation

1 Clean the installation with a powerful universal cleaner2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

553 Flushing an existing installation

Before filling the heating installation it is essential to remove any sludge deposits which have accumulated in the heating circuit over the years

1 Remove any sludge from the installation2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

554 Connecting the heating circuit

ImportantAbide by the information shown in the hydraulic diagrams

The pipes are not provided

Caution

The heating pipe must be mounted in accordance with the provisions applicableIf installing stop valves position the filldrain valve and the expansion vessel between the stop valves and the boilerAlways install a safety valve calibrated to a maximum of 4 bar on the heating circuit The safety valve can be connected to a venting pot The safety valve must not be used to drain the heating circuitIt is recommended to install a sludge collector on all installations

SeeIf fitting with a hydraulic kit (low-loss header or plate heat exchanger) refer to the kit manual

555 Connecting the condensate discharge pipe

Use a neutralisation station to achieve a pH value of more than 65 (in accordance with prevailing regulations)Discharge the condensates directly into the mains drainage system via a siphon In view of the acidity level (pH 25 to 3) only condensate discharge pipes made from compatible plastic should be used

5 Installation

28 Gas 120 ACE 7717202 - v03 - 24062019

The condensate discharge pipe is located at the rear of the boiler

Do not block the condensate discharge pipeTilt the discharge pipe by at least 30 mm per metre and make sure there are no low points that could cause the accumulation of water or deposits Maximum horizontal length 5 metresDo not drain condensation water into a roof gutterConnect the condensate discharge pipe in accordance with prevailing standardsIt is preferable to use the condensate neutralisers recommended by the manufacturer of the boiler

1 Connect a plastic hose to the condensate discharge outlet (DN 22)2 Insert the other end of the hose into a waste water discharge outlet

556 Filling the siphon

DangerIf operating with the siphon empty combustion products will escape into the premises in which the boiler is installed

1 Pour water into the flue gas pipe (central pipe) until it flows out of the condensate discharge pipe

56 Gas connection

Danger

Close the main gas valve before starting work on the gas pipesThe diameters of the pipes must be defined in accordance with the standards in force in your countryConnect the gas pipe in accordance with prevailing standards and regulationsEnsure that there is no dust in the gas pipe

The gas pipes are not providedIn old gas networks we recommend fitting a gas filter with a low pressure drop upstream of this point

1 Clean the gas supply pipe2 Remove the anti-dust plug located on the boilers gas inlet3 Mount a gas stop valve (not provided) on the boilers gas inlet4 Connect the gas inlet pipe to the gas stop valve

Fig20

MW-2000825-01

pH gt 65

Oslash32A

Fig21

MW-6000742-02

1

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 29

5 Close the gas supply valve before testing the pressure on the gas supply pipe to avoid damage caused by excessive pressure on the gas regulator Decompress before reopening the valve

561 Gas supply

Before mounting check that the gas meter has sufficient capacity (in m3h) To do this you should bear in mind the consumption of all appliances If the capacity of the gas meter is too low inform the gas supply companyThe boilers are preset to run on G20 gas (gas H) and can be adapted to run with the following gases

G31 (gas P)G3031 (gas BP)

ImportantTo use a different type of gas contact an approved assistance service

57 Air supplyflue gas outlet connections

571 Classification

The discharge and intake pipes must be certified for the appropriate configuration and must meet the requirements of the prevailing installation standards in the country

Tab20 Configurations and recommendations for the flue systemConfiguration Principle DescriptionB23B23P

AD-3001055-01

Connection to a chimney using a CE connection kit (single pipe in a flue comshybustion air taken from the boiler room)Follow the connection instructions and adhere to the recommended maximum pipe lengthsComply with the applicable regulations governing ventilation and cross-secshytions for room aeration vents

B33

MW-5000925-1

Room-ventilated version

Without down-draught diverterJoint flue gas discharge via the roof with guaranteed natural draft (at all times underpressure in the joint discharge duct)Flue gas discharge rinsed with air air from the installation area (special conshystruction)The IP rating of the boiler is lowered to IP20

C13C13X

AD-3001056-01

Airflue gas connection using concentric pipes to a horizontal terminal (so-called forced flue) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

5 Installation

30 Gas 120 ACE 7717202 - v03 - 24062019

Configuration Principle DescriptionC33C33X

AD-3001057-01

Airflue gas connection using concentric pipes to a vertical terminal (roof outshylet) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

C43C43X

MW-2000822-01

Airflue gas connection via concentric pipes to a common pipe supplying severshyal heating applicationsThe common pipe has a roof connection to a vertical terminal that draws in the air required for combustion and discharges the combustion productsUse of CE-certified system

C53

AD-3001058-02

Airflue gas connection via separate pipes lead to two separate terminals One draws in the air required for combustion and the other discharges the combusshytion productsThe outlets may be in different pressure zonesDo not install the air supply and discharge on opposing surfacesUse of CE-certified system

C63C63X

The installer is responsible for installing a CE-certified discharge system that complies with the manufacturers recommendations (temperature flow pressure etc)

The maximum pressure drop in the pipes ΔP must not exceed the values given in the table below The pipes must be certified for this type of use and for a temperature of more than 100 degC The terminal part of the flue gas pipe must be certified as complying with the EN 1856-1 StandardIf installing discharge and intake pipes not supplied by Remeha these must be certified for the intended type of use and their maximum pressure drop must be compliant

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 31

Configuration Principle DescriptionC83C83X

MW-2000823-01

Flue gas connection to a collective flue for sealed boilers The air supply is inshydividual via a terminal coming from outside the buildingA concentric pipe can be used to both supply the boiler with combustion air and connect to the collective flue gas discharge systemThe chimney or flue gas pipe must be suitable for such use and the system CE certified

C93C93X

AD-3001059-01

Airflue gas connection via concentric pipes in an existing chimney The air supshyply in the chimney may be installed via the existing channel or via tubing Flue gas discharge and air intake are via a vertical terminal at the top of the chimney

The air intake and discharge must be close enough to be in the same pressure zoneThe minimum cross-sections are shown in the table belowThe flue system must be suitable for the intended use and the system CE certishyfied

Tab21 Minimum dimensions of the duct or pipe C93 C93X

Version (D) Without air supply With air supplyRigid 80 mm Oslash 130 mm 130 x 130 mm Oslash 140 mm 130 x 130 mmRigid 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmRigid 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmFlexible 80 mm Oslash 130 mm 130 x 130 mm Oslash 145 mm 130 x 130 mmFlexible 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmFlexible 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmConcentric 80125 mm Oslash 145 mm 145 x 145 mm Oslash 145 mm 145 x 145 mmConcentric 100150 mm Oslash 170 mm 170 x 170 mm Oslash 170 mm 170 x 170 mmConcentric 150200 mm Oslash 270 mm 270 x 270 mm - -

ImportantThe duct must comply with the air density requirements of the local regulations

Important

Only original components are authorised for connection to the boiler and for the terminalThe clear section must comply with the standardThe chimney must be swept before installing the discharge flue

CautionEnsure that the flue gas discharge pipes are securely attached to the wall with suitable retaining flanges to prevent any damage and guarantee the tightness of every gasket in the circuit

CautionThe minimum gradient of the condensates discharge pipe from the boiler to the waste water discharge must be 1 cm per linear metre

Fig22 Minimum dimensions of the duct or pipe C93 C93X

AD-3000330-03

D

Oslash

D

5 Installation

32 Gas 120 ACE 7717202 - v03 - 24062019

572 Lengths of the airflue gas pipes

The maximum lengths (Lmax) given in the table are valid for pipes in which the horizontal sections do not exceed one metre in total For each additional metre of horizontal pipe a multiplication coefficient of 12 must be applied when calculating the total length L The total length L is calculated by adding the lengths of the straight airflue gas pipes and the equivalent lengths of the other componentsAlways ensure that L is less than Lmax

ImportantFor the list of flue gas system accessories and the equivalent lengths refer to the current price list

Tab22 Lengths of the airflue gas pipes in metresConfigurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 100 mm 26 24 19

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 110 mm 40 40 40

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 110 mm 295 24 175

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 80125 mm - - -

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 100150 mm 9 8 59

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 80125 mm - - -

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 100150 mm 115 10 94

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 80125 mm over 2x80 mm

- - -

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 100150 mm over 2x100 mm

23 175 Air 11Flue gases 5

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm110 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 110150 mm110 mm

16 132 10

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 33

Configurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 110150 mm110 mm

165 135 94

Tab23 PPS pipe reduction for each element used

Diameter 80 mmSingle

80125 mmConcentric

100 mmSingle

100150 mmConcentric

45deg elbow 12 m 10 m 11 m 10 m87deg elbow 19 m 15 m 20 m 37 mStraight inspection tube 03 m 06 m - 10 m87deg inspection elbow 19 m 20 m 48 m -Inspection T 42 m 27 m 56 m 25 mInspection tube for flexible pipe 03 m - 05 m -

573 Dimensions of flue gas outlet pipe

WarningThe pipes connected to the flue gas adapter must satisfy the following dimension requirements

d1 External dimensions of flue gas outlet pipe

Tab24 Dimensions of pipe d1 (min-max)80 mm 793 - 803 mm100 mm 993 - 1003 mm150 mm 149 - 151 mm

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipe

Tab25 Dimensions of pipe d1 (min-max) D1 (min-max)8080 mm 793 - 803 mm 793 - 803 mm100100 mm 993 - 1003 mm 993 - 1003 mm110110 mm 1093 - 1103 mm 1093 - 1103 mm150150 mm 149 - 151 mm 149 - 151 mm

Fig23 Dimensions of open connection

AD-3001094-01

oslashd1

Fig24 Dimensions of parallel connection

AD-3000963-01

oslashd1 oslashD1

5 Installation

34 Gas 120 ACE 7717202 - v03 - 24062019

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipeL1 Length difference between flue gas outlet pipe and air supply pipe

Tab26 Dimensions of pipe d1 (min-max) D1 (min-max) L1

(1) (min-max)80125 mm 793 - 803 mm 124 - 1255 mm 0 - 15 mm100150 mm 993 - 1003 mm 149 - 151 mm 0 - 15 mm

(1) Shorten the inner pipe if the length difference is too great

574 Connection to the flue gas pipe

At delivery the flue gas outletair supply is fixed inside the boiler

1 Using a long tool unlock and remove the boilers front door2 Remove the boiler outlet

3 Two options for connection to the flue gas pipe

Option Description3a Connection to a vertical flue gas pipe Position the flue gas

outletair supply directly at the boiler outlet3b Connection to a horizontal flue gas pipe Insert an outlet elshy

bow ( not supplied) before the flue gas outletair supply

ImportantLubricate the gaskets on the flue system during assembly

Fig25 Dimensions of concentric connection

AD-3000962-01

oslashd1

L1

oslashD1

Fig26

MW-2000867-02

1

2

1

Fig27

3a 3b

MW-2000868-01

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 35

Fastening the coaxial pipes Fasten the intake pipes with two galvanised Oslash 42 mm screws with a maximum length of 16 mm

CautionBefore fixing the screws make sure that at least 45 cm of pipe is inserted in the gasket of the other pipe

WarningGuarantee a minimum pipe slope towards the boiler of at least 5 cm per metre

Fig28 Fastening the coaxial pipes using screws

BO-0000030

16 mm

5 Installation

36 Gas 120 ACE 7717202 - v03 - 24062019

6 Operation

61 Settings

To configure the installation and use the boiler please refer to the control unit manual

6 Operation

7717202 - v03 - 24062019 Gas 120 ACE 37

7 Maintenance

71 General

We recommend having the boiler inspected and serviced at regular intervals

CautionDo not neglect to service the boiler Contact a qualified professional or take out a maintenance contract for the obligatory annual servicing of the boilerFailure to service the appliance voids the warranty

Danger of electric shockBefore service work is started the boiler has to be de-energised and secured from accidentally being switched back on

CautionHave an inspection carried out and the flues swept at least once a year or more depending on the regulations in force in your country

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

CautionAfter maintenance or repair work check the entire heating system to ensure that there are no leaks

CautionOnly genuine spare parts may be used

72 Specific maintenance operations

721 Cleaning the siphon

1 Remove the flue gas outlet discharge pipe

2 Remove the condensate discharge pipe 3 Remove the screw from the siphon

Fig29

1

MW-2000903-01

Fig30

2

3

MW-2000904-01

7 Maintenance

38 Gas 120 ACE 7717202 - v03 - 24062019

4 Pull the siphon downwards to disengage it and pivot it to release it

5 Flush the siphon 6 Drain the siphon

7 Fill the siphon with clean water up to the mark 8 Lubricate the siphon gasket9 Re-engage the siphon and refit the screw

10 Refit the two pipes

722 Checking the ionisation current

1 Check the ionisation current at full load and at low loadThe value is stable after 1 minute

2 Clean or replace the ionisationignition electrode if the value is lower than 4 microA

Fig31

4

90deg

MW-2000905-01

Fig32

MW-2000843-01

Fig33

MW-2000844-01

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 39

723 Replace the ionizationignition electrode

The ionizationignition electrode must be replaced if

The ionization current is lt 4 microAThe electrode is damaged or worn

1 Remove the plug of the electrode from the igniter

ImportantThe ignition cable is fixed to the electrode and therefore may not be removed

2 Remove the two screws3 Remove the entire component4 Fit the new ionizationignition electrode with a new seal5 Reassemble the unit in the reverse order to disassembly

724 Servicing the forced flue connection pipes

1 Open the inspection hatches or remove the pipes2 Check that the air supply and discharge pipes are not blocked

If necessary clean the discharge pipe3 Check the tightness of the flue gas system4 Replace the tightness gaskets and if necessary any sections of pipe

until tightness is perfect

725 Checking the burner and cleaning the heat exchanger

1 Remove the air inlet flue on the venturi2 Loosen the gland on the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

Fig34

AD-0000088-01

4

1

2

3

Fig35 Removing the fan

AD-3001178-01

1

3

4

2

5

7 Maintenance

40 Gas 120 ACE 7717202 - v03 - 24062019

6 Remove the front plate from the heat exchanger7 Carefully lift the front plate including the burner and fan away from

the heat exchanger

8 Use a vacuum cleaner fitted with a special endpiece (accessory) to clean the top part of the heat exchanger (combustion chamber)

9 Vacuum again without the top brush on the end piece10 Clean the lower section of the heat exchanger with the special

cleaning blade (accessory)11 Check (eg using a mirror) whether any visible contamination has

been left behind If it has remove it with the vacuum cleaner12 Check that the burner cover of the dismantled burner is free from

cracks andor damage If not replace the burnerServicing the burner is usually not necessary it is self-cleaning Use compressed air to carefully blow away any dust

13 Reassemble the unit in reverse order

CautionRemember to reconnect the fan plugCheck that the gasket is correctly positioned between the mixing elbow and the heat exchanger (the gasket must lie absolutely flat in the appropriate groove to ensure that no gas can leak)Tighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the front plate nuts with a torque wrench to the firmness of 10 Nm

14 Open the gas supply and switch the power supply to the boiler back on

Fig36 Removing the front plate fan and burner

AD-3001179-01

6

7

Fig37 Cleaning the heat exchanger

AD-3001180-01

10

8 9

12

11

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 41

726 Checking the non-return valve

1 Remove the air inlet pipe from the venturi2 Unscrew the gland of the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

6 Dismantle the fan7 Remove the fan together with the gas valve unit8 Inspect the non-return valve and replace it in the event of a defect or

damage or if the maintenance kit contains a non-return valve9 Reassemble in the reverse order

CautionRemember to reconnect the fan plugTighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the two fan nuts with a torque wrench to the firmness of 38 Nm

Fig38 Disconnecting the fan

AD-3001178-01

1

3

4

2

5

Fig39 Checking the non-return valve

AD-3001181-01

2x

68

7

9

7 Maintenance

42 Gas 120 ACE 7717202 - v03 - 24062019

8 Decommissioning

81 Decommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

To switch off the boiler temporarily or permanently proceed as follows

1 Switch the boiler off2 Cut the electrical power to the boiler3 Close the gas valve on the boiler4 Drain the central heating system or ensure frost protection5 Close the door of the boiler to prevent air circulating inside it6 Remove the pipe connecting the boiler to the chimney and close the

nozzle with a plug

82 Recommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

Should it prove necessary to carry out the recommissioning of the boiler proceed as follows

1 Re-establish electrical power to the boiler2 Fit and check the flue gas pipe3 Fill the siphon with water4 Fill the central heating system5 Open the boiler gas valve6 Start up the boiler

8 Decommissioning

7717202 - v03 - 24062019 Gas 120 ACE 43

9 Disposal and recyclingCautionOnly qualified professionals are permitted to remove and dispose of the boiler in accordance with local and national regulations

If you need to remove the boiler proceed as follows

1 Switch off the boiler2 Cut the power supply to the boiler3 Close the main gas valve4 Close the water mains5 Close the gas valve on the boiler6 Drain the installation7 Remove the airflue gas pipes8 Disconnect all pipes9 Dismantle the boiler

Fig40

MW-3000179-03

9 Disposal and recycling

44 Gas 120 ACE 7717202 - v03 - 24062019

10 Environmental

101 Energy savings

Energy-saving advice

Do not block ventilation outletsDo not cover the radiators Do not hang curtains in front of the radiatorsInstall reflective panels behind the radiators to prevent heat lossesInsulate the pipes in rooms that are not heated (cellars and lofts)Close the radiators in rooms not in useDo not run hot (or cold) water pointlesslyInstall an energy-saving shower head which can save up to 40 energyTake showers rather than baths A bath consumes twice as much water and energy

102 Room thermostat and settings

Various models of room thermostat are available The type of thermostat used and the parameter selected impact total energy consumption

A modulating regulator which may be combined with thermostatic valves is eco-friendly in terms of energy and offers an excellent level of comfort This combination allows you to set the temperature separately for each room However do not install thermostatic radiator valves in the room in which the room thermostat is locatedComplete opening and closing of the thermostatic radiator valves causes undesirable variations in temperature Therefore these must be openedclosed progressivelySet the room thermostat to a temperature of approximately 20degC to reduce heating costs and energy consumptionLower the thermostat setting to approximately 16degC at night or when you are not at home This reduces heating costs and energy consumptionLower the thermostat setting well before airing the roomsSet the water temperature to a lower level in summer than in winter (eg 60degC and 80degC respectively) when an ONOFF thermostatis usedWhen clock thermostats and programmable thermostats are to be set do not forget to take any holidays and days when no one is at home into account

10 Environmental

7717202 - v03 - 24062019 Gas 120 ACE 45

11 Warranty

111 General

We would like to thank you for buying one of our appliances and for your trust in our productIn order to ensure continued safe and efficient operation we recommend that the product is regularly inspected and maintainedYour installer and our service department can assist with this

112 Terms of warranty

The following provisions do not affect the application in favour of the buyer of the legal provisions with regard to hidden defects that are applicable in the buyers countryThis appliance comes with a warranty that covers all manufacturing faults the warranty period will commence on the date of purchase stated on the installers invoiceThe warranty period is stated in our price listAs a manufacturer we can by no means be held liable if the appliance is used incorrectly is poorly maintained or not maintained at all or is not installed correctly (it is your responsibility to ensure that installation is carried out by a qualified installer)In particular we cannot be held liable for material damage intangible losses or physical injury resulting from an installation that does not comply with

Legal or regulatory requirements or provisions laid down by the local authoritiesNational or local regulations and special provisions relating to the installationOur manuals and installation instructions in particular in terms of regular maintenance of the appliances

Our warranty is limited to the replacement or repair of the parts found to be defective by our technical services team excluding labour transfer and transport costsOur warranty does not cover replacement or repair costs for parts that may become defective due to normal wear incorrect usage the intervention of unqualified third parties inadequate or insufficient supervision or maintenance a mains supply that is not appropriate or the use of unsuitable or poor quality fuelSmaller parts such as motors pumps electrical valves etc are guaranteed only if these parts have never been dismantledThe rights established in European Directive 9944EEC implemented by legal decree No 24 of 2 February 2002 and published in Official Journal No 57 of 8 March 2002 remain in force

11 Warranty

46 Gas 120 ACE 7717202 - v03 - 24062019

12 Spare parts

121 General

If inspection or maintenance work bring to light the need to replace a component in the boilerProvide the reference number given in the spare parts list when ordering a spare part

CautionOnly genuine spare parts may be used

122 Spare parts lists

1221 Exchanger

Fig41

MW-6000743-01

811x

7

7

4

2

16

3

10

119

65

1

13

12

18

14

19

15

18

17

Tab27

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

1 7699615 Complete exchanger x 1 7699614 Complete exchanger x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 47

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

2 S101564 Exchanger front plate x x x3 S54731 Exchanger inspection hatch insulation x x x4 S57241 Exchanger inspection hatch gasket x x x5 S100052 M4x10 self-locking screw (x20) x x x6 S54754 FURQ65 burner x 6 S57477 FURQ85 burner x x7 7623837 Set of 10 k NTC sensors x x x8 S54755 M6 nut (x20) x x x9 7659755 M4x10 screw (x10) x x x10 S53489 Electrode gasket (x10) x x x11 7692359 Ignition electrode x x x12 7631936 Flue gas flow pipe diameter 100 mm x x x13 7624643 NTC 2x20 k flue gas sensor with gasket x x x14 7624619 Ignition transformer x x x15 S56987 ZP M6x16 screw (x10) x x x16 7616253 Valve with support x x x17 7680596 Exchanger bracket x 17 7673616 Exchanger bracket x x18 7701752 Gasket diameter 100 mm (x5) x x x19 7632708 Earth electric clip (x2) x x x

1222 Gas circuit

Fig42

MW-6000744-01

3

2

5

6

9

4

8

10

7

12

11

1

14

13

13

12 Spare parts

48 Gas 120 ACE 7717202 - v03 - 24062019

Tab28Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 S101543 Silencer x 1 S101520 Silencer x 1 S101578 Silencer x2 S54777 Venturi gasket (x5) x 2 S59215 Gas valve-venturi gasket (x5) x 2 S101593 Gaskets (kit) x3 S101726 Fan RG 1481200-3633 x x 3 S100036 Fan RG 148 1200-3633-010202 x4 S101596 Gas valve VK4115v1386 x 4 S101597 Gas valve VK4115vb1012 x 4 S101510 Gas valve GB-ND 057 XP x5 S54766 Venturi x 5 S57488 Venturi x 5 S101595 Venturi VMS 45900450-010 x6 S59215 Gas valve-venturi gasket (x5) x x 7 S57827 Gas valve unit flange x8 S57828 268x22x25 O-ring (x5) x9 S101631 Diaphragm x10 7616249 Flue gas sensor cap (5x) x x x11 S56155 238x177x2 gasket (x20) x x x12 95760050 C HC M4-12 88 ZN3 screw x x x13 S48512 M5-10 screw (x10) x x x14 S101590 Silencer retaining clip x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 49

1223 Hydraulic circuit

Fig43

MW-6000745-01

1

14

6

9

11

8

12

5

37

9

10

2

4

13

Tab29Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7680598 Complete flow pipe x 1 7670807 Complete flow pipe x x2 7672557 Complete return pipe x x x3 7674076 Complete gas pipe x 3 7680434 Complete gas pipe x 3 7670720 Complete gas pipe x4 7698560 HUBA G38 pressure gauge x x x5 94994712 PVC pipe diameter 16x12 x x x6 7699357 Water deflector diameter 100 mm x x x7 94902073 Drain valve 12 x x x8 94918138 Air vent x x x9 95013064 44x32x2 mm green gasket x x x10 95013060 24x17x2 mm green gasket x x 10 95013062 30x21x12 mm green gasket x11 7692329 Condensate hose x x x13 7706103 Assembled siphon height 160 mm x 13 7706038 Assembled siphon height 250 mm x x14 7103731 Condensate drain pan gasket x x x

12 Spare parts

50 Gas 120 ACE 7717202 - v03 - 24062019

1224 Boiler body

Fig44

MW-6000746-01

2

2

1

6

3

34

5

4

Tab30Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7686377 Assembled frame x 1 7686139 Assembled frame x x2 7679958 117x34 handle diameter 65 mm x x x3 7676037 Wheel x x x4 7688301 Frame lateral gasket x 4 7688008 Frame lateral gasket x x5 7688353 Front panel gasket x 5 7688007 Front panel gasket x x6 7693874 R4-05 front panel lock x x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 51

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

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Scanboiler Varmeteknik AS

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Ecotherm Energy SL

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Remeha Commercial UK

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RG41 2FD Wokingham

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E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 7: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

12 Recommendations

DangerFor safety reasons we recommend fitting smoke and CO2 detectors and alarms at suitable places in your home

CautionThe boiler must always be connected to the protective earthingEarthing must comply with the prevailing installation standardsEarth the appliance before making any electrical connections

For the type and calibre of the protective equipment refer to the chapter Electrical Connections in the Installation and Service Manual

CautionIf a power cord comes with the appliance and it turns out to be damaged it must be replaced by the manufacturer its after sales service or persons with similar qualifications in order to obviate any danger

CautionA disconnection device must be fitted to the permanent pipes in accordance with the installation rules

CautionPower the appliance via a circuit that includes an omni-polar switch with contact opening distance of 3 mm or more

CautionDrain the boiler and heating system if the home is left empty for a long period of time and there is a chance of frost

CautionRemove the boiler casing only to perform maintenance and repair work Always put the casing back in place after such work

CautionTo enjoy warranty cover no modifications must be made to the boiler

1 Safety

7717202 - v03 - 24062019 Gas 120 ACE 7

CautionThe frost protection function only protects the boiler not the heating system

CautionThe frost protection function does not work if the boiler is powered off

CautionThe appliance should be switched to Summer or Frost Protection mode rather than be switched off in order to guarantee the following functions

Avoidance of pumps blockingFrost Protection

ImportantRespect the minimum and maximum water inlet pressure to ensure correct operation of the boiler refer to the chapter Technical Specifications

ImportantOnly qualified professionals are permitted to install the boiler in accordance with prevailing local and national regulations

ImportantNever remove or cover labels and data plates affixed to the boilerLabels and data plates must be legible throughout the entire lifetime of the boiler Immediately replace damaged or illegible instructions and warning labels

ImportantKeep this document close to the place where the appliance is installed

13 Liabilities

131 Manufacturers liability

Our products are manufactured in compliance with the requirements of the various Directives applicable They are therefore delivered with the marking and any documents necessary In the interests of the quality of our products we strive constantly to improve them We therefore reserve the right to modify the specifications given in this documentOur liability as manufacturer may not be invoked in the following cases

1 Safety

8 Gas 120 ACE 7717202 - v03 - 24062019

Failure to abide by the instructions on installing and maintaining the applianceFailure to abide by the instructions on using the applianceFaulty or insufficient maintenance of the appliance

132 Installers liability

The installer is responsible for the installation and initial commissioning of the appliance The installer must observe the following instructions

Read and follow the instructions given in the manuals provided with the applianceInstall the appliance in compliance with prevailing legislation and standardsCarry out initial commissioning and any checks necessaryExplain the installation to the userIf maintenance is necessary warn the user of the obligation to check the appliance and keep it in good working orderGive all the instruction manuals to the user

133 Users liability

To guarantee optimum operation of the system you must abide by the following instructions

Read and follow the instructions given in the manuals provided with the applianceCall on a qualified professional to carry out installation and initial commissioningGet your installer to explain your installation to youHave the required inspections and maintenance carried out by a qualified installerKeep the instruction manuals in good condition close to the appliance

1 Safety

7717202 - v03 - 24062019 Gas 120 ACE 9

2 Symbols used

21 Symbols used in the manual

This manual uses various danger levels to draw attention to special instructions We do this to improve user safety to prevent problems and to guarantee correct operation of the appliance

DangerRisk of dangerous situations that may result in serious personal injury

Danger of electric shockRisk of electric shock

WarningRisk of dangerous situations that may result in minor personal injury

CautionRisk of material damage

ImportantPlease note important information

SeeReference to other manuals or pages in this manual

22 Symbols used on the appliance

1 Alternating current2 Protective earthing3 Before installing and commissioning the appliance carefully read

the instruction manuals provided4 Dispose of used products through an appropriate recovery and

recycling structure5 Caution danger of electric shock live parts Disconnect the mains

power prior to carrying out any work

Fig1

1 2

MW-2000068-1

1

2

3

4

5

2 Symbols used

10 Gas 120 ACE 7717202 - v03 - 24062019

3 Technical specifications

31 Homologations

311 Directives

This product has been manufactured and put into circulation in accordance with the requirements and standards of the following European Directives

Gas Appliances Regulation (EU) (2016426)

Pressure Equipment Directive 201468EU

Electromagnetic Compatibility Directive (201430EU)

Low Voltage Directive (201435EU)

Efficiency Directive (9242EEC)

European Ecodesign Directive (2009125EC)EU Regulation (8132013)

Energy Labelling Framework Regulation (EU) (20171369)EU Regulation (8112013)

BS 7074 Part 1 Application selection and installation of expansion vessels and ancillary equipment for sealed water systemsBS 6644 Specification for the installation of gas-fired condensing boilers with a nominal output exceeding 70 kWBS EN 12828 Design for water-based heating systemsBS EN 13831 Closed expansion vessels

Apart from the legal provisions and Directives the additional Directives described in these instructions must also be observedFor all provisions and Directives referred to in these instructions it is agreed that all addenda or subsequent provisions will apply at the time of installation

312 EC Declaration of Conformity

The unit complies with the standard type described in the EC declaration of conformity It has been manufactured and commissioned in accordance with European directivesThe original declaration of conformity is available from the manufacturer

313 Gas categories

Tab1 Czech Republic Spain Greece Portugal Switzerland UK

Category Gas type Connection pressure (mbar) Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

II2H3BP G20 (H gas) 20 X X X G30G31 (butanepropane) 303750 X X X

314 Certifications

Tab2 CertificationsCE number 0085CT0009NOx class 6 (EN 15502-1)

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 11

Type of flue gas connection Chimney

B23B23PB33

Forced flue

C13C13XC33C33XC43C43XC53C63C63XC83C83XC93C93X

315 Factory test

Before leaving the factory each boiler is optimally set and tested for

Electrical safetySettings (CO2)Water tightnessGas tightnessParameter setting

32 Technical data

Tab3 GeneralGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Nominal heat output (Pn)Central heating operation (80 degC60 degC)

minndashmax kW 120 - 615 141 - 842 189 - 1039

Nominal heat output (Pn)Central heating operation (50 degC30 degC)

minndashmax kW 135 - 650 158 - 895 212 - 1097

Nominal input power (Qn)Heating mode (Hi)

minndashmax kW 122 - 620 146 - 860 196 - 1070

Nominal input power (Qn)Heating operation (Hi) G31 (propane)

minndashmax kW 122 - 620 221 - 860 212 - 1070

Nominal input power (Qn)Central heating operation (Hs)

minndashmax kW 137 - 689 162 - 955 217 - 1189

Full load heating mode efficiency (Hi) (8060 degC) (9242EEC)

992 979 971

Full load heating mode efficiency (Hi) (50 degC30 degC)

1046 1041 1025

Part load heating mode efficiency (9242EEC) (return temperature 30 degC)

1104 1081 108

Tab4 Gas and flue gas valuesGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115G20 gas consumption (H gas)(1) minndashmax m3h 13 - 66 15 - 91 20 - 117Gas consumption G31 (propane)(1)

minndashmax m3h 05 - 25 09 - 35 09 - 45

3 Technical specifications

12 Gas 120 ACE 7717202 - v03 - 24062019

Gas 120 ACE Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

Gas resistance G20 (H gas)(2) max mbar 20 25 30BREAM NOx mgkWh 32 29 35Flue gas quantity minndashmax m3h 18 - 90 22 - 125 30 - 160Flue gas temperature minndashmax degC 30 - 120 30 - 120 30 - 120Maximum counter pressure (Pn) Pa 100 160 220

(1) Gas consumption based on lower heating value in standardised conditions T=28815 K p=101325 mbar Gag 3033 G25 2925 G31 8800 MJm3

(2) Gas resistance between boiler connection and measurement point on the gas valve unit

Tab5Gas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Gas inlet pressure G20 (H gas) minndashmax mbar 17 - 25 17 - 25 17 - 25G30G31 gas inlet pressure (ButanePropane) minndashmax mbar 37 - 50 37 - 50 37 - 50G31 gas inlet pressure (Propane) minndashmax mbar 37 - 50 37 - 50 37 - 50

Tab6 Central heating circuit dataGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Water content l 71 101 101Water operating pressure min bar 08 08 08Water operating pressure (MOP) max bar 40 40 40Water temperature max degC 110 110 110Operating temperature max degC 90 90 90Pressure drop secondary circuit (ΔT = 20 K) mWC 17 16 26Maximum permitted temperature difference(1) max degC 40(1) 40(1) 35(1)

(1) with a maximum flow temperature of 80 degC

Tab7 Electrical dataGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Supply voltage (AC) V 230 230 230Power consumption ndash full load max W 92 124 180Power consumption - low load max W 25 24 344Power consumption ndash standby max W 6 5 9Electrical protection rating IP X1B X1B X1BFuses Main A 10 10 10

Tab8 Other dataGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Total weight (empty) kg 98 109 109Average acoustic level at a distance of one meshytre from the boiler

dB(A) 40 45 45

SeeThe back cover for contact details

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 13

321 ErP technical parameters

Tab9 Technical parameters for boiler space heatersProduct name Gas 120 ACE

- 65Gas 120 ACE - 90

Gas 120 ACE - 115

Condensing boiler Yes Yes YesLow-temperature boiler(1) No No NoB1 boiler No No NoCogeneration space heater No No NoCombination heater No No NoRated heat output Prated kW 62 84 104

Useful heat output at rated heat output and high temperature regime(2)

P4 kW 615 842 1039

Useful heat output at 30 of rated heat output and low temperature regime(1)

P1 kW 205 279 347

Seasonal space heating energy efficiency ƞs 94 - -Useful efficiency at rated heat output and high temperature regime(2)

ƞ4 894 882 875

Useful efficiency at 30 of rated heat output and low temperature regime(1)

ƞ1 995 974 973

Auxiliary electricity consumption Full load elmax kW 0092 0124 0180Part load elmin kW 0025 0024 0034Stand-by PSB kW 0006 0005 0009

Other specifications Standby heat loss Pstby kW 0114 0119 0119Ignition burner power consumption Pign kW - - -Annual energy consumption QHE GJ 190 - -Sound power level indoors LWA dB 55 61 60Emissions of nitrogen oxides NOx mgkWh 29 41 41(1) Low temperature means for condensing boilers 30degC for low temperature boilers 37degC and for other heaters 50degC return temperature

(at heater inlet)(2) High temperature regime means 60 degC return temperature at heater inlet and 80 degC feed temperature at heater outlet

SeeThe back cover for contact details

322 Circulating pump (not provided)

The boiler is supplied without a circulating pump Take the boiler pressure drop and system pressure drop into account when selecting a pump

CautionThe maximum output of a pump that can be connected is 200 W Above this use an auxiliary relay adapted to the pump output

If possible install the pump in direct connection to the boiler on the return circuit

For more information see

Circulating pump

The maximum difference in temperature between the flow water and the return water and the speed at which the boiler temperature increases are restricted by the boilers control system

3 Technical specifications

14 Gas 120 ACE 7717202 - v03 - 24062019

Tab10 Minimum flow to be guaranteedMinimum flow to be guaranteed in the boiler Unit Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Minimum flow rate litreshour 290 340 455

A Dynamic head in mWcB Water flow rate (m3h)C Pressure drops

ΔT Maximum temperature difference between the flow water and the return water in the boiler

A Dynamic head in mWcB Water flow rate (m3h)C Pressure drops

ΔT Maximum temperature difference between the flow water and the return water in the boiler

A Dynamic head in mWcB Water flow rate (m3h)C Pressure drops

ΔT Maximum temperature difference between the flow water and the return water in the boiler

323 Sensor specifications

Outside temperature sensor specifications

Tab11 Outside temperature sensorTemperature degC -20 -16 -12 -8 -4 0 4 8 12 16 20 24Resistance Ω

(Ohm)2392 2088 1811 1562 1342 1149 984 842 720 616 528 454

Fig2 Pressure drops for Gas 120 ACE - 65

MW-2000671-3

T=20KT=40K

175

Fig3 Pressure drops for Gas 120 ACE - 90

MW-2000673-3

T=20KT=40K

362

Fig4 Pressure drops for Gas 120 ACE - 115

MW-2000674-3

T=20KT=35K

447

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 15

Boiler sensor return sensor

Tab12 Boiler sensor return sensorTemperature in degC

-20 -10 0 10 20 25 30 40 50 60 70 80 90 100 110

Resistance in Ω

98932 58879 36129 22804 14773 10000 9804 6652 4607 3252 2337 1707 1266 952 726

Circuit flow sensor domestic hot water sensor and system sensor

Tab13 Circuit flow sensor domestic hot water sensor and system sensorTemperature in degC 0 10 20 25 30 40 50 60 70 80 90Resistance in Ω 32014 19691 12474 10000 8080 5372 3661 2535 1794 1290 941

Specifications of the boiler flue gas sensor

Tab14 Boiler flue gas sensorTemperature degC 0 10 20 30 40 50 60 70 80 90 100Resistance Ohm 66000 40000 20000 16100 10600 7160 4940 3480 2490 1810 1340

33 Dimensions and connections

Fig5

MW-2000684-03

A

D

E

FG

BC

600 605150

92

132

240

141

418

5

2

34

107

105

95

100

1

255145

1 Heating circuit flow (R114)2 Gas inlet (G34)3 Heating circuit return (R114)

4 Condensate discharge (DN22)5 Flue gas pipe

Tab15 Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 1155 Diameter 100150 mm Diameter 100150 mm Diameter 100150 mmA (mm) 1340 1562 1562B (mm) 1164 1386 1386C (mm) 1082 1304 1304D (mm) 971 1193 1193

3 Technical specifications

16 Gas 120 ACE 7717202 - v03 - 24062019

Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 115E (mm) 410 632 632F (mm) 87 303 303G (mm) 128 350 350

34 Electrical diagram

341 Electrical diagram of boiler

Fig6

CU-GH-08

X3X4X5

X6

X8

1

2

3

1

2

3

X14

X7

X10

X11

X13

X12

1

2

3

4

5

25 A

Nrsquo

1

2

3

4

YE

GY

BR

GR

1

2

3

4

1

2

3

4

1

2

N L

1

2

1

2

OPTION

PRESSURE

SWITCH

MW-2000850-04

230V

1 2 3 4 5 6 7 8 9 10

24V

12 11

BL OR

10 9 8 7 6

GR BK RE YE BL

5 4 3 2 1

OR BK RE YE BL

Lrsquo

BL

GY

GY

GY

BL BR

GY

BL

BR

GY BL

BR

GY

BR

GR BK RE YE BL OR BK RE YE BL

BK

BL

BR

RE

GR

GR

BK

GR

GY

YE

BR

BL

OR

1

2

3

4

5

1

2

3

RE

BK

GR

BR

BK

BL

GR

1

2

BR

GR

GY

RE BL

BL

BK

BK

BR YE

GR PI

BL

BL

GR

PI

GR

RE

BR

YE

BK

BK

BR

GY

BL

BL

BR

GY

GY

BR

BL BL GY

BR

BL

BR

BK

GYWH

GY

BL

GY

BL

BR

BK

WH

BL

GY

1 12

4

5

2

3

6

7

8

9

10

11

16

17

15

14

13

1 230 V connector connection with control unit2 Mains interference filter3 Earthing of boiler front door4 Return sensor (TR)5 Flow sensor (FTS)6 Flue gas sensor7 Flue gas pressure switch (specific option for the

Netherlands)8 Gas valve unit (GB)9 Igniter (IT)

10 Ionizationignition electrode (E)11 Fan supply12 24 V connector connection with control unit13 Storage information (CSU)14 Pressure sensor (PS)15 Fan control (PWM)16 Light17 Control unit (CU-GH08)BK BlackBL Blue

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 17

BR BrownGY GreenYellowYE YellowOR OrangeGR Green

PI PinkGY GreyRD RedWH White

3 Technical specifications

18 Gas 120 ACE 7717202 - v03 - 24062019

4 Description of the product

41 General description

Gas 120 ACE floor-standing condensing gas boilers have the following characteristics

Low polluting emissionsHigh-efficiency heatingElectronic control panelFlue gas discharge by a forced flue or chimney type connection with bi-flow option

The boilers are perfectly suited to cascade installation

42 Operating principle

421 Gasair setting

The casing fitted to the boiler is also used as an air box Air is drawn in by the fan and gas injected into the Venturi by the fan intake The fan speed is modulated according to the settings the heat demand and the actual temperatures measured by the temperature sensors The gas and air are mixed in the Venturi The gasair ratio command function accurately adjusts the quantities of gas and air required This provides optimum combustion over the entire output range The gasair mixture is sent to the burner located upstream of the heat exchanger

422 Settings and safety devices

ImportantThe settings and safety devices are only operational if the boiler is powered up

Tab16 Description of the safety devicesDevice DescriptionNTC flue gas sensor The control panel blocks the gas supply to the burner in the event of overheatingFlame detector by ionisation The boiler is put into safety lock-down in the event of gas shortage or incomplete cross-

lighting on the burnerHydraulic pressure switch When the pressure switch detects a pressure lower than 08 bar (008 MPa) a warning

message is displayed without stopping the circulating pumpPost-circulating pump After the burner stops depending on the room thermostat setting and if in heating

mode the circulating pump runs for a further 3 minutesFrost protection device When the flow temperature is lower than 5 degC the burner starts up and runs until the

flow temperature reaches 15 degC This device runs under the following conditions

The boiler is switched onThe gas supply is workingThe pressure in the system is higher than 05 bar (005 MPa)

Anti-blocking of the pump If there are no heating or domestic hot water requirements for 24 consecutive hours the pumps start up automatically and run for 10 seconds

Anticipatory start-up of the circulatshying pumps

In heating mode only the appliance can start up the circulating pumps before burner igshynition The duration and activation of anticipatory start-up depends on the installation reshyquirements and the operating temperatures The duration of anticipatory start-up of the circulating pumps therefore varies from a few seconds to several minutes

4 Description of the product

7717202 - v03 - 24062019 Gas 120 ACE 19

43 Main boiler components

1 Control unit2 Flow sensor3 Light4 Ignitionionization electrode5 Non-return valve6 Gas valve7 Heat exchanger (heating circuit)8 Return sensor9 Pressure gauge sensor

10 CU-GH-08 PCB housing11 Siphon12 Flue gas circuit13 Intake silencer14 Venturi15 Flue gas sensor16 Fan17 Automatic air vent18 Flue gas measuring point19 Combustion air measuring point20 Flue gas outletair supply

44 PCBs

441 Description of the CU-GH-08 PCB

This PCB controls the core boiler components sensors actuators and gas valveThis PCB is factory-fitted and fully cabled and does not require any operationThe sensors valves circulating pumps etc are connected at the control unit

45 Standard delivery

The Gas 120 ACE boiler comes in 2 packages including

Tab17 Package contentsPackage ContentPackage 1 A floor-standing gas boiler

A flue system outlet with a measuring point (stored in the boiler)An outdoor temperature sensorA data plateAn installation and service manual

Package 2 A control unitTwo control unit mounting bolts on the boilerA user manual

46 Accessories amp options

A detailed list of accessories and options can be found in our catalogue

Fig7

MW-2000670-02

16

7 13

12

11

10

19

18

20

17

14

15

6

5

2

9

4

3

1

8

4 Description of the product

20 Gas 120 ACE 7717202 - v03 - 24062019

5 Installation

51 Installation regulations

CautionInstallation of the boiler must be done by a qualified professional in accordance with prevailing local and national regulations

CautionA disconnection device must be fitted to the permanent pipes in accordance with the installation rules

CautionRespect the maximum water inlet pressure to ensure correct operation of the appliance referring to the Technical Specifications chapter

52 Choice of the location

Decide on the ideal position for installation bearing in mind any legal directives and the space required by the appliance

Install the boiler on a solid stable structure capable of bearing the weight of the appliance when full of water and fully equippedWhen choosing the position for installation of the boiler bear in mind the positions authorised for the combustion gas discharge outlets and the air intake ventDo not install the boiler near any heat sources

521 Data plate

The data plate is located on the back of the boilerThe data plate provides important information regarding the appliance

Serial numberModelGas categoryCN1CN2etc

Once installation is complete the second data plate supplied in the documentation bag can be affixed to a more visible part of the boilerIf the boiler is equipped with a hydraulic kit (low-loss header or plate heat exchanger) affix the data plate to the side of the boiler

522 Space required - Boiler ventilation

Decide on the ideal position for installation bearing in mind any legal directives and the space required by the appliance

Install the boiler on a solid stable structure capable of bearing the weight of the appliance when full of water and fully equippedWhen choosing the position for installation of the boiler bear in mind the positions authorised for the combustion gas discharge outlets and the air intake ventDo not install the boiler near any heat sources

Fig8

MW-6000735-01

Made in France0085

CN1 17

CN2 7

230 V 50 Hz

B23(P) - B33 - C13(X) - C33(X) - C43(X) - C53 - C63(X) - C83(X) - C93(X)

PMS= 4bar - 04MPa

Pn =

8060 degC

5030 degC

NOx class 6 (Nox lt 56 mgkWh)

Qn =Hi kW

4030 degC

189-1039

196-1070

212-1097

180W

0085CT009

Hs (G20) 217-1189

IP21Imax= 10A

Tmax= 90degC

FR

LT

IT

AT

CZ

PL

II2Esi3BP

II2H3BP

II2H3BP

II2H3BP

II2H3P

II2H3BP

II2H3BP

II2ELw3BP

G20-20mbar G25-25mbar G30G31-303750mbar

G20-20mbar G30G31 - 30mbar

G20-20mbar G30G31 - 303750 mbar

G20-20mbar G30G31 - 3037mbar

G20-20mbar G31 - 30mbar

G20-20mbar G30G31 - 50mbar

G20-20mbar G30G31-303750mbar

G20-20mbar G27-20mbar G3031-37mbar

kW

Art Nr SN A0000YYWW000

kW

kW

kW

kW

kW

ESGR PT

LU RO EE

YY-WW

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 21

Keep the boiler accessible at all timesPlace the boiler on a base to make it easier to clean the roomThe boiler can be located along a partition on one of its sides provided there is a 500 mm space on the opposite sideAllow enough space around the boiler to facilitate accessibility and maintenance The minimum recommended dimensions are shown in the illustrationMake sure there is a connection to the water drainage system close to the boiler to discharge any condensates

ImportantTo fit the boiler position the pallet with the package 25 m in front of the desired location for the installation This distance is required to allow the boiler to be removed from its pallet

Tab18Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 115

A (mm) 500 500 500B (mm) 1082 1304 1304

To allow the intake of combustion air sufficient ventilation must be provided in the boiler room the cross section and position of which must satisfy the regulations in force

Great Britain BS 5440 Part 1 and Part 2

For boilers with a nominal output of more than 70 kW Upper and lower air vents comshypulsory

BS 6644 and IGEMUP-10

Caution

Avoid any low points in the flue gas and condensate discharge circuit in order to prevent any accumulation of condensatesDo not block the air inlets in the room or the combustion product evacuation or condensation water flow pipes (even partially)

If the boiler is installed in closed premises respect the minimum dimensions given in the diagram below Also allow for openings to obviate the following hazards

Accumulation of gasOverheating of the premisesGreat Britain Minimum cross section of openings see BS 5440 Part 1 and Part 2 and BS 6644

523 Ventilation

To allow the intake of combustion air sufficient ventilation must be provided in the boiler room for which the cross section and position must satisfy the regulations in force in the country in which the boiler is installed

Great Britain BS 5440 Part 1 and Part 2

For boilers with a nominal output of more than 70 kW Upper and lower air vents comshypulsory

BS 6644 and IGEMUP-10

Fig9

MW-2000679-03

500

B

1100

AS1

S2

260

580

350

600

500

5 Installation

22 Gas 120 ACE 7717202 - v03 - 24062019

If the boiler is installed in closed premises respect the minimum dimensions given in the diagram below Also allow for openings to obviate the following hazards

Accumulation of gasOverheating of the premisesGreat Britain Minimum cross section of openings see BS 5440 Part 1 and Part 2 and BS 6644

524 Fitting the outdoor sensor

Plugs diameter 4 mmdrill diameter 6 mm

1 Choose a recommended location for the outdoor sensor2 Put the 2 plugs in place delivered with the sensor3 Secure the sensor using the screws provided (diameter 4 mm)4 Connect the cable to the outdoor temperature sensor

Recommended positions

Place the outside sensor in a position that covers the following characteristics

On a faccedilade of the area to be heated on the north if possibleHalf way up the wall of the area to be heatedUnder the influence of changes in the weatherProtected from direct sunlightEasy to access

Fig11

MW-8800N001-3

2

1

2

11

2

H

12 H (min 25 m)

12 H (min 25 m)

12 Z

H

Z

1 Optimum location2 Possible position

H Inhabited height controlled by the sensorZ Inhabited area controlled by the sensor

Positions to be avoided

Avoid placing the outside sensor in a position with the following characteristics

Masked by part of the building (balcony roof etc)Close to a disruptive heat source (sun chimney ventilation grid etc)

Fig10

MW-8800N003-6

23

4

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 23

Fig12

MW-3000014-2

53 Transport

Transport the boiler pallet with a manual or electric pallet truck

54 Unpacking and preparing the boiler

Caution

Wear gloves to handle the boilerTransport the boiler pallet with a manual or electric pallet truckUse carrying bars (not provided) to move the boiler

ImportantTo fit the boiler position the pallet with the package 25 m in front of the desired location for the installation This distance is required to allow the boiler to be removed from its pallet

1 Cut the packaging2 Remove the packaging from the boiler but leave the boiler on the

shipping pallet

ImportantThe documentation bag (user manual + accessories) is contained in the protective block

Fig13

MW-6000736-01

Manual

11

12

5 Installation

24 Gas 120 ACE 7717202 - v03 - 24062019

3 Using a long tool unlock and remove the boilers front door Disconnect the earth wire

4 Remove the mounting bolts from the unloading ramps and the boiler (4 bolts at the rear and 4 bolts at the front)

5 Pull out the unloading ramps and turn them over6 Align the ramps with the rear castor wheels on the boiler

Fig14

MW-6000761-01

3

3

Fig15

MW-6000737-01

4

4

Fig16

MW-6000738-01

5

5

6

6

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 25

7 Lock the ramps correctly onto the pallet8 Screw the unloading ramps onto the pallet9 Fold down the ends of the ramp so that they rest on the ground

10 Tilt the boiler backwards until it is resting on the castor wheels then remove it from the pallet

11 Recycle the pallet

Fig17

MW-6000770-01

9

9

8

7

Fig18

MW-6000739-02

600

350

11

10

550

5 Installation

26 Gas 120 ACE 7717202 - v03 - 24062019

12 Level the boiler using the adjustable feet(1) Factory setting 30 mm adjustment range 20 to 40 mm

CautionThe rear castor wheels must no longer be in contact with the ground

55 Hydraulic connections

551 Water treatment

In many cases the boiler and the heating system can be filled with mains water without treating the water

CautionDo not add any chemical products to the heating water without first consulting a water treatment specialist For example antifreeze water softeners products to increase or reduce the pH value chemical additives andor inhibitors These may cause faults in the boiler and damage the heat exchanger

Important

Flush the installation with at least 3 times the volume of water contained in the heating systemFlush the DHW circuit with at least 20 times its volume of water

The water in the installation must comply with following specifications

Tab19 Installation water specifications Initial commissioning Concentration (top up)Degree of acidity (untreated water) pH 65 - 85 65 - 85

Degree of acidity (treated washyter) pH 70 - 90 70 - 90

Conductivity at 25degC μScm le 500 le 500Chlorides mglitre le 50 le 50Other components mglitre lt 1 lt 1

Total water hardnessdegf 5 - 35 le 15degdH 28 - 200 le 85mmollitre(1) 05 - 35 lt 15

(1) Flow temperature less than 90degC mdash Maximum hardness 150 mmoll

Fig19

MW-6000773-01

(1)

12

12

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 27

ImportantIf water treatment proves necessary Remeha recommends the following manufacturers

CillitClimalifeFernoxPermoSentinel

552 Flushing new installations and installations less than 6 months old

Before filling the heating installation it is essential to remove any debris (copper caulking soldering flux) from the installation

1 Clean the installation with a powerful universal cleaner2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

553 Flushing an existing installation

Before filling the heating installation it is essential to remove any sludge deposits which have accumulated in the heating circuit over the years

1 Remove any sludge from the installation2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

554 Connecting the heating circuit

ImportantAbide by the information shown in the hydraulic diagrams

The pipes are not provided

Caution

The heating pipe must be mounted in accordance with the provisions applicableIf installing stop valves position the filldrain valve and the expansion vessel between the stop valves and the boilerAlways install a safety valve calibrated to a maximum of 4 bar on the heating circuit The safety valve can be connected to a venting pot The safety valve must not be used to drain the heating circuitIt is recommended to install a sludge collector on all installations

SeeIf fitting with a hydraulic kit (low-loss header or plate heat exchanger) refer to the kit manual

555 Connecting the condensate discharge pipe

Use a neutralisation station to achieve a pH value of more than 65 (in accordance with prevailing regulations)Discharge the condensates directly into the mains drainage system via a siphon In view of the acidity level (pH 25 to 3) only condensate discharge pipes made from compatible plastic should be used

5 Installation

28 Gas 120 ACE 7717202 - v03 - 24062019

The condensate discharge pipe is located at the rear of the boiler

Do not block the condensate discharge pipeTilt the discharge pipe by at least 30 mm per metre and make sure there are no low points that could cause the accumulation of water or deposits Maximum horizontal length 5 metresDo not drain condensation water into a roof gutterConnect the condensate discharge pipe in accordance with prevailing standardsIt is preferable to use the condensate neutralisers recommended by the manufacturer of the boiler

1 Connect a plastic hose to the condensate discharge outlet (DN 22)2 Insert the other end of the hose into a waste water discharge outlet

556 Filling the siphon

DangerIf operating with the siphon empty combustion products will escape into the premises in which the boiler is installed

1 Pour water into the flue gas pipe (central pipe) until it flows out of the condensate discharge pipe

56 Gas connection

Danger

Close the main gas valve before starting work on the gas pipesThe diameters of the pipes must be defined in accordance with the standards in force in your countryConnect the gas pipe in accordance with prevailing standards and regulationsEnsure that there is no dust in the gas pipe

The gas pipes are not providedIn old gas networks we recommend fitting a gas filter with a low pressure drop upstream of this point

1 Clean the gas supply pipe2 Remove the anti-dust plug located on the boilers gas inlet3 Mount a gas stop valve (not provided) on the boilers gas inlet4 Connect the gas inlet pipe to the gas stop valve

Fig20

MW-2000825-01

pH gt 65

Oslash32A

Fig21

MW-6000742-02

1

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 29

5 Close the gas supply valve before testing the pressure on the gas supply pipe to avoid damage caused by excessive pressure on the gas regulator Decompress before reopening the valve

561 Gas supply

Before mounting check that the gas meter has sufficient capacity (in m3h) To do this you should bear in mind the consumption of all appliances If the capacity of the gas meter is too low inform the gas supply companyThe boilers are preset to run on G20 gas (gas H) and can be adapted to run with the following gases

G31 (gas P)G3031 (gas BP)

ImportantTo use a different type of gas contact an approved assistance service

57 Air supplyflue gas outlet connections

571 Classification

The discharge and intake pipes must be certified for the appropriate configuration and must meet the requirements of the prevailing installation standards in the country

Tab20 Configurations and recommendations for the flue systemConfiguration Principle DescriptionB23B23P

AD-3001055-01

Connection to a chimney using a CE connection kit (single pipe in a flue comshybustion air taken from the boiler room)Follow the connection instructions and adhere to the recommended maximum pipe lengthsComply with the applicable regulations governing ventilation and cross-secshytions for room aeration vents

B33

MW-5000925-1

Room-ventilated version

Without down-draught diverterJoint flue gas discharge via the roof with guaranteed natural draft (at all times underpressure in the joint discharge duct)Flue gas discharge rinsed with air air from the installation area (special conshystruction)The IP rating of the boiler is lowered to IP20

C13C13X

AD-3001056-01

Airflue gas connection using concentric pipes to a horizontal terminal (so-called forced flue) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

5 Installation

30 Gas 120 ACE 7717202 - v03 - 24062019

Configuration Principle DescriptionC33C33X

AD-3001057-01

Airflue gas connection using concentric pipes to a vertical terminal (roof outshylet) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

C43C43X

MW-2000822-01

Airflue gas connection via concentric pipes to a common pipe supplying severshyal heating applicationsThe common pipe has a roof connection to a vertical terminal that draws in the air required for combustion and discharges the combustion productsUse of CE-certified system

C53

AD-3001058-02

Airflue gas connection via separate pipes lead to two separate terminals One draws in the air required for combustion and the other discharges the combusshytion productsThe outlets may be in different pressure zonesDo not install the air supply and discharge on opposing surfacesUse of CE-certified system

C63C63X

The installer is responsible for installing a CE-certified discharge system that complies with the manufacturers recommendations (temperature flow pressure etc)

The maximum pressure drop in the pipes ΔP must not exceed the values given in the table below The pipes must be certified for this type of use and for a temperature of more than 100 degC The terminal part of the flue gas pipe must be certified as complying with the EN 1856-1 StandardIf installing discharge and intake pipes not supplied by Remeha these must be certified for the intended type of use and their maximum pressure drop must be compliant

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 31

Configuration Principle DescriptionC83C83X

MW-2000823-01

Flue gas connection to a collective flue for sealed boilers The air supply is inshydividual via a terminal coming from outside the buildingA concentric pipe can be used to both supply the boiler with combustion air and connect to the collective flue gas discharge systemThe chimney or flue gas pipe must be suitable for such use and the system CE certified

C93C93X

AD-3001059-01

Airflue gas connection via concentric pipes in an existing chimney The air supshyply in the chimney may be installed via the existing channel or via tubing Flue gas discharge and air intake are via a vertical terminal at the top of the chimney

The air intake and discharge must be close enough to be in the same pressure zoneThe minimum cross-sections are shown in the table belowThe flue system must be suitable for the intended use and the system CE certishyfied

Tab21 Minimum dimensions of the duct or pipe C93 C93X

Version (D) Without air supply With air supplyRigid 80 mm Oslash 130 mm 130 x 130 mm Oslash 140 mm 130 x 130 mmRigid 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmRigid 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmFlexible 80 mm Oslash 130 mm 130 x 130 mm Oslash 145 mm 130 x 130 mmFlexible 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmFlexible 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmConcentric 80125 mm Oslash 145 mm 145 x 145 mm Oslash 145 mm 145 x 145 mmConcentric 100150 mm Oslash 170 mm 170 x 170 mm Oslash 170 mm 170 x 170 mmConcentric 150200 mm Oslash 270 mm 270 x 270 mm - -

ImportantThe duct must comply with the air density requirements of the local regulations

Important

Only original components are authorised for connection to the boiler and for the terminalThe clear section must comply with the standardThe chimney must be swept before installing the discharge flue

CautionEnsure that the flue gas discharge pipes are securely attached to the wall with suitable retaining flanges to prevent any damage and guarantee the tightness of every gasket in the circuit

CautionThe minimum gradient of the condensates discharge pipe from the boiler to the waste water discharge must be 1 cm per linear metre

Fig22 Minimum dimensions of the duct or pipe C93 C93X

AD-3000330-03

D

Oslash

D

5 Installation

32 Gas 120 ACE 7717202 - v03 - 24062019

572 Lengths of the airflue gas pipes

The maximum lengths (Lmax) given in the table are valid for pipes in which the horizontal sections do not exceed one metre in total For each additional metre of horizontal pipe a multiplication coefficient of 12 must be applied when calculating the total length L The total length L is calculated by adding the lengths of the straight airflue gas pipes and the equivalent lengths of the other componentsAlways ensure that L is less than Lmax

ImportantFor the list of flue gas system accessories and the equivalent lengths refer to the current price list

Tab22 Lengths of the airflue gas pipes in metresConfigurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 100 mm 26 24 19

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 110 mm 40 40 40

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 110 mm 295 24 175

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 80125 mm - - -

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 100150 mm 9 8 59

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 80125 mm - - -

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 100150 mm 115 10 94

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 80125 mm over 2x80 mm

- - -

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 100150 mm over 2x100 mm

23 175 Air 11Flue gases 5

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm110 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 110150 mm110 mm

16 132 10

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 33

Configurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 110150 mm110 mm

165 135 94

Tab23 PPS pipe reduction for each element used

Diameter 80 mmSingle

80125 mmConcentric

100 mmSingle

100150 mmConcentric

45deg elbow 12 m 10 m 11 m 10 m87deg elbow 19 m 15 m 20 m 37 mStraight inspection tube 03 m 06 m - 10 m87deg inspection elbow 19 m 20 m 48 m -Inspection T 42 m 27 m 56 m 25 mInspection tube for flexible pipe 03 m - 05 m -

573 Dimensions of flue gas outlet pipe

WarningThe pipes connected to the flue gas adapter must satisfy the following dimension requirements

d1 External dimensions of flue gas outlet pipe

Tab24 Dimensions of pipe d1 (min-max)80 mm 793 - 803 mm100 mm 993 - 1003 mm150 mm 149 - 151 mm

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipe

Tab25 Dimensions of pipe d1 (min-max) D1 (min-max)8080 mm 793 - 803 mm 793 - 803 mm100100 mm 993 - 1003 mm 993 - 1003 mm110110 mm 1093 - 1103 mm 1093 - 1103 mm150150 mm 149 - 151 mm 149 - 151 mm

Fig23 Dimensions of open connection

AD-3001094-01

oslashd1

Fig24 Dimensions of parallel connection

AD-3000963-01

oslashd1 oslashD1

5 Installation

34 Gas 120 ACE 7717202 - v03 - 24062019

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipeL1 Length difference between flue gas outlet pipe and air supply pipe

Tab26 Dimensions of pipe d1 (min-max) D1 (min-max) L1

(1) (min-max)80125 mm 793 - 803 mm 124 - 1255 mm 0 - 15 mm100150 mm 993 - 1003 mm 149 - 151 mm 0 - 15 mm

(1) Shorten the inner pipe if the length difference is too great

574 Connection to the flue gas pipe

At delivery the flue gas outletair supply is fixed inside the boiler

1 Using a long tool unlock and remove the boilers front door2 Remove the boiler outlet

3 Two options for connection to the flue gas pipe

Option Description3a Connection to a vertical flue gas pipe Position the flue gas

outletair supply directly at the boiler outlet3b Connection to a horizontal flue gas pipe Insert an outlet elshy

bow ( not supplied) before the flue gas outletair supply

ImportantLubricate the gaskets on the flue system during assembly

Fig25 Dimensions of concentric connection

AD-3000962-01

oslashd1

L1

oslashD1

Fig26

MW-2000867-02

1

2

1

Fig27

3a 3b

MW-2000868-01

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 35

Fastening the coaxial pipes Fasten the intake pipes with two galvanised Oslash 42 mm screws with a maximum length of 16 mm

CautionBefore fixing the screws make sure that at least 45 cm of pipe is inserted in the gasket of the other pipe

WarningGuarantee a minimum pipe slope towards the boiler of at least 5 cm per metre

Fig28 Fastening the coaxial pipes using screws

BO-0000030

16 mm

5 Installation

36 Gas 120 ACE 7717202 - v03 - 24062019

6 Operation

61 Settings

To configure the installation and use the boiler please refer to the control unit manual

6 Operation

7717202 - v03 - 24062019 Gas 120 ACE 37

7 Maintenance

71 General

We recommend having the boiler inspected and serviced at regular intervals

CautionDo not neglect to service the boiler Contact a qualified professional or take out a maintenance contract for the obligatory annual servicing of the boilerFailure to service the appliance voids the warranty

Danger of electric shockBefore service work is started the boiler has to be de-energised and secured from accidentally being switched back on

CautionHave an inspection carried out and the flues swept at least once a year or more depending on the regulations in force in your country

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

CautionAfter maintenance or repair work check the entire heating system to ensure that there are no leaks

CautionOnly genuine spare parts may be used

72 Specific maintenance operations

721 Cleaning the siphon

1 Remove the flue gas outlet discharge pipe

2 Remove the condensate discharge pipe 3 Remove the screw from the siphon

Fig29

1

MW-2000903-01

Fig30

2

3

MW-2000904-01

7 Maintenance

38 Gas 120 ACE 7717202 - v03 - 24062019

4 Pull the siphon downwards to disengage it and pivot it to release it

5 Flush the siphon 6 Drain the siphon

7 Fill the siphon with clean water up to the mark 8 Lubricate the siphon gasket9 Re-engage the siphon and refit the screw

10 Refit the two pipes

722 Checking the ionisation current

1 Check the ionisation current at full load and at low loadThe value is stable after 1 minute

2 Clean or replace the ionisationignition electrode if the value is lower than 4 microA

Fig31

4

90deg

MW-2000905-01

Fig32

MW-2000843-01

Fig33

MW-2000844-01

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 39

723 Replace the ionizationignition electrode

The ionizationignition electrode must be replaced if

The ionization current is lt 4 microAThe electrode is damaged or worn

1 Remove the plug of the electrode from the igniter

ImportantThe ignition cable is fixed to the electrode and therefore may not be removed

2 Remove the two screws3 Remove the entire component4 Fit the new ionizationignition electrode with a new seal5 Reassemble the unit in the reverse order to disassembly

724 Servicing the forced flue connection pipes

1 Open the inspection hatches or remove the pipes2 Check that the air supply and discharge pipes are not blocked

If necessary clean the discharge pipe3 Check the tightness of the flue gas system4 Replace the tightness gaskets and if necessary any sections of pipe

until tightness is perfect

725 Checking the burner and cleaning the heat exchanger

1 Remove the air inlet flue on the venturi2 Loosen the gland on the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

Fig34

AD-0000088-01

4

1

2

3

Fig35 Removing the fan

AD-3001178-01

1

3

4

2

5

7 Maintenance

40 Gas 120 ACE 7717202 - v03 - 24062019

6 Remove the front plate from the heat exchanger7 Carefully lift the front plate including the burner and fan away from

the heat exchanger

8 Use a vacuum cleaner fitted with a special endpiece (accessory) to clean the top part of the heat exchanger (combustion chamber)

9 Vacuum again without the top brush on the end piece10 Clean the lower section of the heat exchanger with the special

cleaning blade (accessory)11 Check (eg using a mirror) whether any visible contamination has

been left behind If it has remove it with the vacuum cleaner12 Check that the burner cover of the dismantled burner is free from

cracks andor damage If not replace the burnerServicing the burner is usually not necessary it is self-cleaning Use compressed air to carefully blow away any dust

13 Reassemble the unit in reverse order

CautionRemember to reconnect the fan plugCheck that the gasket is correctly positioned between the mixing elbow and the heat exchanger (the gasket must lie absolutely flat in the appropriate groove to ensure that no gas can leak)Tighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the front plate nuts with a torque wrench to the firmness of 10 Nm

14 Open the gas supply and switch the power supply to the boiler back on

Fig36 Removing the front plate fan and burner

AD-3001179-01

6

7

Fig37 Cleaning the heat exchanger

AD-3001180-01

10

8 9

12

11

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 41

726 Checking the non-return valve

1 Remove the air inlet pipe from the venturi2 Unscrew the gland of the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

6 Dismantle the fan7 Remove the fan together with the gas valve unit8 Inspect the non-return valve and replace it in the event of a defect or

damage or if the maintenance kit contains a non-return valve9 Reassemble in the reverse order

CautionRemember to reconnect the fan plugTighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the two fan nuts with a torque wrench to the firmness of 38 Nm

Fig38 Disconnecting the fan

AD-3001178-01

1

3

4

2

5

Fig39 Checking the non-return valve

AD-3001181-01

2x

68

7

9

7 Maintenance

42 Gas 120 ACE 7717202 - v03 - 24062019

8 Decommissioning

81 Decommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

To switch off the boiler temporarily or permanently proceed as follows

1 Switch the boiler off2 Cut the electrical power to the boiler3 Close the gas valve on the boiler4 Drain the central heating system or ensure frost protection5 Close the door of the boiler to prevent air circulating inside it6 Remove the pipe connecting the boiler to the chimney and close the

nozzle with a plug

82 Recommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

Should it prove necessary to carry out the recommissioning of the boiler proceed as follows

1 Re-establish electrical power to the boiler2 Fit and check the flue gas pipe3 Fill the siphon with water4 Fill the central heating system5 Open the boiler gas valve6 Start up the boiler

8 Decommissioning

7717202 - v03 - 24062019 Gas 120 ACE 43

9 Disposal and recyclingCautionOnly qualified professionals are permitted to remove and dispose of the boiler in accordance with local and national regulations

If you need to remove the boiler proceed as follows

1 Switch off the boiler2 Cut the power supply to the boiler3 Close the main gas valve4 Close the water mains5 Close the gas valve on the boiler6 Drain the installation7 Remove the airflue gas pipes8 Disconnect all pipes9 Dismantle the boiler

Fig40

MW-3000179-03

9 Disposal and recycling

44 Gas 120 ACE 7717202 - v03 - 24062019

10 Environmental

101 Energy savings

Energy-saving advice

Do not block ventilation outletsDo not cover the radiators Do not hang curtains in front of the radiatorsInstall reflective panels behind the radiators to prevent heat lossesInsulate the pipes in rooms that are not heated (cellars and lofts)Close the radiators in rooms not in useDo not run hot (or cold) water pointlesslyInstall an energy-saving shower head which can save up to 40 energyTake showers rather than baths A bath consumes twice as much water and energy

102 Room thermostat and settings

Various models of room thermostat are available The type of thermostat used and the parameter selected impact total energy consumption

A modulating regulator which may be combined with thermostatic valves is eco-friendly in terms of energy and offers an excellent level of comfort This combination allows you to set the temperature separately for each room However do not install thermostatic radiator valves in the room in which the room thermostat is locatedComplete opening and closing of the thermostatic radiator valves causes undesirable variations in temperature Therefore these must be openedclosed progressivelySet the room thermostat to a temperature of approximately 20degC to reduce heating costs and energy consumptionLower the thermostat setting to approximately 16degC at night or when you are not at home This reduces heating costs and energy consumptionLower the thermostat setting well before airing the roomsSet the water temperature to a lower level in summer than in winter (eg 60degC and 80degC respectively) when an ONOFF thermostatis usedWhen clock thermostats and programmable thermostats are to be set do not forget to take any holidays and days when no one is at home into account

10 Environmental

7717202 - v03 - 24062019 Gas 120 ACE 45

11 Warranty

111 General

We would like to thank you for buying one of our appliances and for your trust in our productIn order to ensure continued safe and efficient operation we recommend that the product is regularly inspected and maintainedYour installer and our service department can assist with this

112 Terms of warranty

The following provisions do not affect the application in favour of the buyer of the legal provisions with regard to hidden defects that are applicable in the buyers countryThis appliance comes with a warranty that covers all manufacturing faults the warranty period will commence on the date of purchase stated on the installers invoiceThe warranty period is stated in our price listAs a manufacturer we can by no means be held liable if the appliance is used incorrectly is poorly maintained or not maintained at all or is not installed correctly (it is your responsibility to ensure that installation is carried out by a qualified installer)In particular we cannot be held liable for material damage intangible losses or physical injury resulting from an installation that does not comply with

Legal or regulatory requirements or provisions laid down by the local authoritiesNational or local regulations and special provisions relating to the installationOur manuals and installation instructions in particular in terms of regular maintenance of the appliances

Our warranty is limited to the replacement or repair of the parts found to be defective by our technical services team excluding labour transfer and transport costsOur warranty does not cover replacement or repair costs for parts that may become defective due to normal wear incorrect usage the intervention of unqualified third parties inadequate or insufficient supervision or maintenance a mains supply that is not appropriate or the use of unsuitable or poor quality fuelSmaller parts such as motors pumps electrical valves etc are guaranteed only if these parts have never been dismantledThe rights established in European Directive 9944EEC implemented by legal decree No 24 of 2 February 2002 and published in Official Journal No 57 of 8 March 2002 remain in force

11 Warranty

46 Gas 120 ACE 7717202 - v03 - 24062019

12 Spare parts

121 General

If inspection or maintenance work bring to light the need to replace a component in the boilerProvide the reference number given in the spare parts list when ordering a spare part

CautionOnly genuine spare parts may be used

122 Spare parts lists

1221 Exchanger

Fig41

MW-6000743-01

811x

7

7

4

2

16

3

10

119

65

1

13

12

18

14

19

15

18

17

Tab27

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

1 7699615 Complete exchanger x 1 7699614 Complete exchanger x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 47

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

2 S101564 Exchanger front plate x x x3 S54731 Exchanger inspection hatch insulation x x x4 S57241 Exchanger inspection hatch gasket x x x5 S100052 M4x10 self-locking screw (x20) x x x6 S54754 FURQ65 burner x 6 S57477 FURQ85 burner x x7 7623837 Set of 10 k NTC sensors x x x8 S54755 M6 nut (x20) x x x9 7659755 M4x10 screw (x10) x x x10 S53489 Electrode gasket (x10) x x x11 7692359 Ignition electrode x x x12 7631936 Flue gas flow pipe diameter 100 mm x x x13 7624643 NTC 2x20 k flue gas sensor with gasket x x x14 7624619 Ignition transformer x x x15 S56987 ZP M6x16 screw (x10) x x x16 7616253 Valve with support x x x17 7680596 Exchanger bracket x 17 7673616 Exchanger bracket x x18 7701752 Gasket diameter 100 mm (x5) x x x19 7632708 Earth electric clip (x2) x x x

1222 Gas circuit

Fig42

MW-6000744-01

3

2

5

6

9

4

8

10

7

12

11

1

14

13

13

12 Spare parts

48 Gas 120 ACE 7717202 - v03 - 24062019

Tab28Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 S101543 Silencer x 1 S101520 Silencer x 1 S101578 Silencer x2 S54777 Venturi gasket (x5) x 2 S59215 Gas valve-venturi gasket (x5) x 2 S101593 Gaskets (kit) x3 S101726 Fan RG 1481200-3633 x x 3 S100036 Fan RG 148 1200-3633-010202 x4 S101596 Gas valve VK4115v1386 x 4 S101597 Gas valve VK4115vb1012 x 4 S101510 Gas valve GB-ND 057 XP x5 S54766 Venturi x 5 S57488 Venturi x 5 S101595 Venturi VMS 45900450-010 x6 S59215 Gas valve-venturi gasket (x5) x x 7 S57827 Gas valve unit flange x8 S57828 268x22x25 O-ring (x5) x9 S101631 Diaphragm x10 7616249 Flue gas sensor cap (5x) x x x11 S56155 238x177x2 gasket (x20) x x x12 95760050 C HC M4-12 88 ZN3 screw x x x13 S48512 M5-10 screw (x10) x x x14 S101590 Silencer retaining clip x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 49

1223 Hydraulic circuit

Fig43

MW-6000745-01

1

14

6

9

11

8

12

5

37

9

10

2

4

13

Tab29Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7680598 Complete flow pipe x 1 7670807 Complete flow pipe x x2 7672557 Complete return pipe x x x3 7674076 Complete gas pipe x 3 7680434 Complete gas pipe x 3 7670720 Complete gas pipe x4 7698560 HUBA G38 pressure gauge x x x5 94994712 PVC pipe diameter 16x12 x x x6 7699357 Water deflector diameter 100 mm x x x7 94902073 Drain valve 12 x x x8 94918138 Air vent x x x9 95013064 44x32x2 mm green gasket x x x10 95013060 24x17x2 mm green gasket x x 10 95013062 30x21x12 mm green gasket x11 7692329 Condensate hose x x x13 7706103 Assembled siphon height 160 mm x 13 7706038 Assembled siphon height 250 mm x x14 7103731 Condensate drain pan gasket x x x

12 Spare parts

50 Gas 120 ACE 7717202 - v03 - 24062019

1224 Boiler body

Fig44

MW-6000746-01

2

2

1

6

3

34

5

4

Tab30Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7686377 Assembled frame x 1 7686139 Assembled frame x x2 7679958 117x34 handle diameter 65 mm x x x3 7676037 Wheel x x x4 7688301 Frame lateral gasket x 4 7688008 Frame lateral gasket x x5 7688353 Front panel gasket x 5 7688007 Front panel gasket x x6 7693874 R4-05 front panel lock x x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 51

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

E toimistoestsystemsfi

Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 8: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

CautionThe frost protection function only protects the boiler not the heating system

CautionThe frost protection function does not work if the boiler is powered off

CautionThe appliance should be switched to Summer or Frost Protection mode rather than be switched off in order to guarantee the following functions

Avoidance of pumps blockingFrost Protection

ImportantRespect the minimum and maximum water inlet pressure to ensure correct operation of the boiler refer to the chapter Technical Specifications

ImportantOnly qualified professionals are permitted to install the boiler in accordance with prevailing local and national regulations

ImportantNever remove or cover labels and data plates affixed to the boilerLabels and data plates must be legible throughout the entire lifetime of the boiler Immediately replace damaged or illegible instructions and warning labels

ImportantKeep this document close to the place where the appliance is installed

13 Liabilities

131 Manufacturers liability

Our products are manufactured in compliance with the requirements of the various Directives applicable They are therefore delivered with the marking and any documents necessary In the interests of the quality of our products we strive constantly to improve them We therefore reserve the right to modify the specifications given in this documentOur liability as manufacturer may not be invoked in the following cases

1 Safety

8 Gas 120 ACE 7717202 - v03 - 24062019

Failure to abide by the instructions on installing and maintaining the applianceFailure to abide by the instructions on using the applianceFaulty or insufficient maintenance of the appliance

132 Installers liability

The installer is responsible for the installation and initial commissioning of the appliance The installer must observe the following instructions

Read and follow the instructions given in the manuals provided with the applianceInstall the appliance in compliance with prevailing legislation and standardsCarry out initial commissioning and any checks necessaryExplain the installation to the userIf maintenance is necessary warn the user of the obligation to check the appliance and keep it in good working orderGive all the instruction manuals to the user

133 Users liability

To guarantee optimum operation of the system you must abide by the following instructions

Read and follow the instructions given in the manuals provided with the applianceCall on a qualified professional to carry out installation and initial commissioningGet your installer to explain your installation to youHave the required inspections and maintenance carried out by a qualified installerKeep the instruction manuals in good condition close to the appliance

1 Safety

7717202 - v03 - 24062019 Gas 120 ACE 9

2 Symbols used

21 Symbols used in the manual

This manual uses various danger levels to draw attention to special instructions We do this to improve user safety to prevent problems and to guarantee correct operation of the appliance

DangerRisk of dangerous situations that may result in serious personal injury

Danger of electric shockRisk of electric shock

WarningRisk of dangerous situations that may result in minor personal injury

CautionRisk of material damage

ImportantPlease note important information

SeeReference to other manuals or pages in this manual

22 Symbols used on the appliance

1 Alternating current2 Protective earthing3 Before installing and commissioning the appliance carefully read

the instruction manuals provided4 Dispose of used products through an appropriate recovery and

recycling structure5 Caution danger of electric shock live parts Disconnect the mains

power prior to carrying out any work

Fig1

1 2

MW-2000068-1

1

2

3

4

5

2 Symbols used

10 Gas 120 ACE 7717202 - v03 - 24062019

3 Technical specifications

31 Homologations

311 Directives

This product has been manufactured and put into circulation in accordance with the requirements and standards of the following European Directives

Gas Appliances Regulation (EU) (2016426)

Pressure Equipment Directive 201468EU

Electromagnetic Compatibility Directive (201430EU)

Low Voltage Directive (201435EU)

Efficiency Directive (9242EEC)

European Ecodesign Directive (2009125EC)EU Regulation (8132013)

Energy Labelling Framework Regulation (EU) (20171369)EU Regulation (8112013)

BS 7074 Part 1 Application selection and installation of expansion vessels and ancillary equipment for sealed water systemsBS 6644 Specification for the installation of gas-fired condensing boilers with a nominal output exceeding 70 kWBS EN 12828 Design for water-based heating systemsBS EN 13831 Closed expansion vessels

Apart from the legal provisions and Directives the additional Directives described in these instructions must also be observedFor all provisions and Directives referred to in these instructions it is agreed that all addenda or subsequent provisions will apply at the time of installation

312 EC Declaration of Conformity

The unit complies with the standard type described in the EC declaration of conformity It has been manufactured and commissioned in accordance with European directivesThe original declaration of conformity is available from the manufacturer

313 Gas categories

Tab1 Czech Republic Spain Greece Portugal Switzerland UK

Category Gas type Connection pressure (mbar) Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

II2H3BP G20 (H gas) 20 X X X G30G31 (butanepropane) 303750 X X X

314 Certifications

Tab2 CertificationsCE number 0085CT0009NOx class 6 (EN 15502-1)

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 11

Type of flue gas connection Chimney

B23B23PB33

Forced flue

C13C13XC33C33XC43C43XC53C63C63XC83C83XC93C93X

315 Factory test

Before leaving the factory each boiler is optimally set and tested for

Electrical safetySettings (CO2)Water tightnessGas tightnessParameter setting

32 Technical data

Tab3 GeneralGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Nominal heat output (Pn)Central heating operation (80 degC60 degC)

minndashmax kW 120 - 615 141 - 842 189 - 1039

Nominal heat output (Pn)Central heating operation (50 degC30 degC)

minndashmax kW 135 - 650 158 - 895 212 - 1097

Nominal input power (Qn)Heating mode (Hi)

minndashmax kW 122 - 620 146 - 860 196 - 1070

Nominal input power (Qn)Heating operation (Hi) G31 (propane)

minndashmax kW 122 - 620 221 - 860 212 - 1070

Nominal input power (Qn)Central heating operation (Hs)

minndashmax kW 137 - 689 162 - 955 217 - 1189

Full load heating mode efficiency (Hi) (8060 degC) (9242EEC)

992 979 971

Full load heating mode efficiency (Hi) (50 degC30 degC)

1046 1041 1025

Part load heating mode efficiency (9242EEC) (return temperature 30 degC)

1104 1081 108

Tab4 Gas and flue gas valuesGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115G20 gas consumption (H gas)(1) minndashmax m3h 13 - 66 15 - 91 20 - 117Gas consumption G31 (propane)(1)

minndashmax m3h 05 - 25 09 - 35 09 - 45

3 Technical specifications

12 Gas 120 ACE 7717202 - v03 - 24062019

Gas 120 ACE Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

Gas resistance G20 (H gas)(2) max mbar 20 25 30BREAM NOx mgkWh 32 29 35Flue gas quantity minndashmax m3h 18 - 90 22 - 125 30 - 160Flue gas temperature minndashmax degC 30 - 120 30 - 120 30 - 120Maximum counter pressure (Pn) Pa 100 160 220

(1) Gas consumption based on lower heating value in standardised conditions T=28815 K p=101325 mbar Gag 3033 G25 2925 G31 8800 MJm3

(2) Gas resistance between boiler connection and measurement point on the gas valve unit

Tab5Gas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Gas inlet pressure G20 (H gas) minndashmax mbar 17 - 25 17 - 25 17 - 25G30G31 gas inlet pressure (ButanePropane) minndashmax mbar 37 - 50 37 - 50 37 - 50G31 gas inlet pressure (Propane) minndashmax mbar 37 - 50 37 - 50 37 - 50

Tab6 Central heating circuit dataGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Water content l 71 101 101Water operating pressure min bar 08 08 08Water operating pressure (MOP) max bar 40 40 40Water temperature max degC 110 110 110Operating temperature max degC 90 90 90Pressure drop secondary circuit (ΔT = 20 K) mWC 17 16 26Maximum permitted temperature difference(1) max degC 40(1) 40(1) 35(1)

(1) with a maximum flow temperature of 80 degC

Tab7 Electrical dataGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Supply voltage (AC) V 230 230 230Power consumption ndash full load max W 92 124 180Power consumption - low load max W 25 24 344Power consumption ndash standby max W 6 5 9Electrical protection rating IP X1B X1B X1BFuses Main A 10 10 10

Tab8 Other dataGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Total weight (empty) kg 98 109 109Average acoustic level at a distance of one meshytre from the boiler

dB(A) 40 45 45

SeeThe back cover for contact details

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 13

321 ErP technical parameters

Tab9 Technical parameters for boiler space heatersProduct name Gas 120 ACE

- 65Gas 120 ACE - 90

Gas 120 ACE - 115

Condensing boiler Yes Yes YesLow-temperature boiler(1) No No NoB1 boiler No No NoCogeneration space heater No No NoCombination heater No No NoRated heat output Prated kW 62 84 104

Useful heat output at rated heat output and high temperature regime(2)

P4 kW 615 842 1039

Useful heat output at 30 of rated heat output and low temperature regime(1)

P1 kW 205 279 347

Seasonal space heating energy efficiency ƞs 94 - -Useful efficiency at rated heat output and high temperature regime(2)

ƞ4 894 882 875

Useful efficiency at 30 of rated heat output and low temperature regime(1)

ƞ1 995 974 973

Auxiliary electricity consumption Full load elmax kW 0092 0124 0180Part load elmin kW 0025 0024 0034Stand-by PSB kW 0006 0005 0009

Other specifications Standby heat loss Pstby kW 0114 0119 0119Ignition burner power consumption Pign kW - - -Annual energy consumption QHE GJ 190 - -Sound power level indoors LWA dB 55 61 60Emissions of nitrogen oxides NOx mgkWh 29 41 41(1) Low temperature means for condensing boilers 30degC for low temperature boilers 37degC and for other heaters 50degC return temperature

(at heater inlet)(2) High temperature regime means 60 degC return temperature at heater inlet and 80 degC feed temperature at heater outlet

SeeThe back cover for contact details

322 Circulating pump (not provided)

The boiler is supplied without a circulating pump Take the boiler pressure drop and system pressure drop into account when selecting a pump

CautionThe maximum output of a pump that can be connected is 200 W Above this use an auxiliary relay adapted to the pump output

If possible install the pump in direct connection to the boiler on the return circuit

For more information see

Circulating pump

The maximum difference in temperature between the flow water and the return water and the speed at which the boiler temperature increases are restricted by the boilers control system

3 Technical specifications

14 Gas 120 ACE 7717202 - v03 - 24062019

Tab10 Minimum flow to be guaranteedMinimum flow to be guaranteed in the boiler Unit Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Minimum flow rate litreshour 290 340 455

A Dynamic head in mWcB Water flow rate (m3h)C Pressure drops

ΔT Maximum temperature difference between the flow water and the return water in the boiler

A Dynamic head in mWcB Water flow rate (m3h)C Pressure drops

ΔT Maximum temperature difference between the flow water and the return water in the boiler

A Dynamic head in mWcB Water flow rate (m3h)C Pressure drops

ΔT Maximum temperature difference between the flow water and the return water in the boiler

323 Sensor specifications

Outside temperature sensor specifications

Tab11 Outside temperature sensorTemperature degC -20 -16 -12 -8 -4 0 4 8 12 16 20 24Resistance Ω

(Ohm)2392 2088 1811 1562 1342 1149 984 842 720 616 528 454

Fig2 Pressure drops for Gas 120 ACE - 65

MW-2000671-3

T=20KT=40K

175

Fig3 Pressure drops for Gas 120 ACE - 90

MW-2000673-3

T=20KT=40K

362

Fig4 Pressure drops for Gas 120 ACE - 115

MW-2000674-3

T=20KT=35K

447

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 15

Boiler sensor return sensor

Tab12 Boiler sensor return sensorTemperature in degC

-20 -10 0 10 20 25 30 40 50 60 70 80 90 100 110

Resistance in Ω

98932 58879 36129 22804 14773 10000 9804 6652 4607 3252 2337 1707 1266 952 726

Circuit flow sensor domestic hot water sensor and system sensor

Tab13 Circuit flow sensor domestic hot water sensor and system sensorTemperature in degC 0 10 20 25 30 40 50 60 70 80 90Resistance in Ω 32014 19691 12474 10000 8080 5372 3661 2535 1794 1290 941

Specifications of the boiler flue gas sensor

Tab14 Boiler flue gas sensorTemperature degC 0 10 20 30 40 50 60 70 80 90 100Resistance Ohm 66000 40000 20000 16100 10600 7160 4940 3480 2490 1810 1340

33 Dimensions and connections

Fig5

MW-2000684-03

A

D

E

FG

BC

600 605150

92

132

240

141

418

5

2

34

107

105

95

100

1

255145

1 Heating circuit flow (R114)2 Gas inlet (G34)3 Heating circuit return (R114)

4 Condensate discharge (DN22)5 Flue gas pipe

Tab15 Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 1155 Diameter 100150 mm Diameter 100150 mm Diameter 100150 mmA (mm) 1340 1562 1562B (mm) 1164 1386 1386C (mm) 1082 1304 1304D (mm) 971 1193 1193

3 Technical specifications

16 Gas 120 ACE 7717202 - v03 - 24062019

Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 115E (mm) 410 632 632F (mm) 87 303 303G (mm) 128 350 350

34 Electrical diagram

341 Electrical diagram of boiler

Fig6

CU-GH-08

X3X4X5

X6

X8

1

2

3

1

2

3

X14

X7

X10

X11

X13

X12

1

2

3

4

5

25 A

Nrsquo

1

2

3

4

YE

GY

BR

GR

1

2

3

4

1

2

3

4

1

2

N L

1

2

1

2

OPTION

PRESSURE

SWITCH

MW-2000850-04

230V

1 2 3 4 5 6 7 8 9 10

24V

12 11

BL OR

10 9 8 7 6

GR BK RE YE BL

5 4 3 2 1

OR BK RE YE BL

Lrsquo

BL

GY

GY

GY

BL BR

GY

BL

BR

GY BL

BR

GY

BR

GR BK RE YE BL OR BK RE YE BL

BK

BL

BR

RE

GR

GR

BK

GR

GY

YE

BR

BL

OR

1

2

3

4

5

1

2

3

RE

BK

GR

BR

BK

BL

GR

1

2

BR

GR

GY

RE BL

BL

BK

BK

BR YE

GR PI

BL

BL

GR

PI

GR

RE

BR

YE

BK

BK

BR

GY

BL

BL

BR

GY

GY

BR

BL BL GY

BR

BL

BR

BK

GYWH

GY

BL

GY

BL

BR

BK

WH

BL

GY

1 12

4

5

2

3

6

7

8

9

10

11

16

17

15

14

13

1 230 V connector connection with control unit2 Mains interference filter3 Earthing of boiler front door4 Return sensor (TR)5 Flow sensor (FTS)6 Flue gas sensor7 Flue gas pressure switch (specific option for the

Netherlands)8 Gas valve unit (GB)9 Igniter (IT)

10 Ionizationignition electrode (E)11 Fan supply12 24 V connector connection with control unit13 Storage information (CSU)14 Pressure sensor (PS)15 Fan control (PWM)16 Light17 Control unit (CU-GH08)BK BlackBL Blue

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 17

BR BrownGY GreenYellowYE YellowOR OrangeGR Green

PI PinkGY GreyRD RedWH White

3 Technical specifications

18 Gas 120 ACE 7717202 - v03 - 24062019

4 Description of the product

41 General description

Gas 120 ACE floor-standing condensing gas boilers have the following characteristics

Low polluting emissionsHigh-efficiency heatingElectronic control panelFlue gas discharge by a forced flue or chimney type connection with bi-flow option

The boilers are perfectly suited to cascade installation

42 Operating principle

421 Gasair setting

The casing fitted to the boiler is also used as an air box Air is drawn in by the fan and gas injected into the Venturi by the fan intake The fan speed is modulated according to the settings the heat demand and the actual temperatures measured by the temperature sensors The gas and air are mixed in the Venturi The gasair ratio command function accurately adjusts the quantities of gas and air required This provides optimum combustion over the entire output range The gasair mixture is sent to the burner located upstream of the heat exchanger

422 Settings and safety devices

ImportantThe settings and safety devices are only operational if the boiler is powered up

Tab16 Description of the safety devicesDevice DescriptionNTC flue gas sensor The control panel blocks the gas supply to the burner in the event of overheatingFlame detector by ionisation The boiler is put into safety lock-down in the event of gas shortage or incomplete cross-

lighting on the burnerHydraulic pressure switch When the pressure switch detects a pressure lower than 08 bar (008 MPa) a warning

message is displayed without stopping the circulating pumpPost-circulating pump After the burner stops depending on the room thermostat setting and if in heating

mode the circulating pump runs for a further 3 minutesFrost protection device When the flow temperature is lower than 5 degC the burner starts up and runs until the

flow temperature reaches 15 degC This device runs under the following conditions

The boiler is switched onThe gas supply is workingThe pressure in the system is higher than 05 bar (005 MPa)

Anti-blocking of the pump If there are no heating or domestic hot water requirements for 24 consecutive hours the pumps start up automatically and run for 10 seconds

Anticipatory start-up of the circulatshying pumps

In heating mode only the appliance can start up the circulating pumps before burner igshynition The duration and activation of anticipatory start-up depends on the installation reshyquirements and the operating temperatures The duration of anticipatory start-up of the circulating pumps therefore varies from a few seconds to several minutes

4 Description of the product

7717202 - v03 - 24062019 Gas 120 ACE 19

43 Main boiler components

1 Control unit2 Flow sensor3 Light4 Ignitionionization electrode5 Non-return valve6 Gas valve7 Heat exchanger (heating circuit)8 Return sensor9 Pressure gauge sensor

10 CU-GH-08 PCB housing11 Siphon12 Flue gas circuit13 Intake silencer14 Venturi15 Flue gas sensor16 Fan17 Automatic air vent18 Flue gas measuring point19 Combustion air measuring point20 Flue gas outletair supply

44 PCBs

441 Description of the CU-GH-08 PCB

This PCB controls the core boiler components sensors actuators and gas valveThis PCB is factory-fitted and fully cabled and does not require any operationThe sensors valves circulating pumps etc are connected at the control unit

45 Standard delivery

The Gas 120 ACE boiler comes in 2 packages including

Tab17 Package contentsPackage ContentPackage 1 A floor-standing gas boiler

A flue system outlet with a measuring point (stored in the boiler)An outdoor temperature sensorA data plateAn installation and service manual

Package 2 A control unitTwo control unit mounting bolts on the boilerA user manual

46 Accessories amp options

A detailed list of accessories and options can be found in our catalogue

Fig7

MW-2000670-02

16

7 13

12

11

10

19

18

20

17

14

15

6

5

2

9

4

3

1

8

4 Description of the product

20 Gas 120 ACE 7717202 - v03 - 24062019

5 Installation

51 Installation regulations

CautionInstallation of the boiler must be done by a qualified professional in accordance with prevailing local and national regulations

CautionA disconnection device must be fitted to the permanent pipes in accordance with the installation rules

CautionRespect the maximum water inlet pressure to ensure correct operation of the appliance referring to the Technical Specifications chapter

52 Choice of the location

Decide on the ideal position for installation bearing in mind any legal directives and the space required by the appliance

Install the boiler on a solid stable structure capable of bearing the weight of the appliance when full of water and fully equippedWhen choosing the position for installation of the boiler bear in mind the positions authorised for the combustion gas discharge outlets and the air intake ventDo not install the boiler near any heat sources

521 Data plate

The data plate is located on the back of the boilerThe data plate provides important information regarding the appliance

Serial numberModelGas categoryCN1CN2etc

Once installation is complete the second data plate supplied in the documentation bag can be affixed to a more visible part of the boilerIf the boiler is equipped with a hydraulic kit (low-loss header or plate heat exchanger) affix the data plate to the side of the boiler

522 Space required - Boiler ventilation

Decide on the ideal position for installation bearing in mind any legal directives and the space required by the appliance

Install the boiler on a solid stable structure capable of bearing the weight of the appliance when full of water and fully equippedWhen choosing the position for installation of the boiler bear in mind the positions authorised for the combustion gas discharge outlets and the air intake ventDo not install the boiler near any heat sources

Fig8

MW-6000735-01

Made in France0085

CN1 17

CN2 7

230 V 50 Hz

B23(P) - B33 - C13(X) - C33(X) - C43(X) - C53 - C63(X) - C83(X) - C93(X)

PMS= 4bar - 04MPa

Pn =

8060 degC

5030 degC

NOx class 6 (Nox lt 56 mgkWh)

Qn =Hi kW

4030 degC

189-1039

196-1070

212-1097

180W

0085CT009

Hs (G20) 217-1189

IP21Imax= 10A

Tmax= 90degC

FR

LT

IT

AT

CZ

PL

II2Esi3BP

II2H3BP

II2H3BP

II2H3BP

II2H3P

II2H3BP

II2H3BP

II2ELw3BP

G20-20mbar G25-25mbar G30G31-303750mbar

G20-20mbar G30G31 - 30mbar

G20-20mbar G30G31 - 303750 mbar

G20-20mbar G30G31 - 3037mbar

G20-20mbar G31 - 30mbar

G20-20mbar G30G31 - 50mbar

G20-20mbar G30G31-303750mbar

G20-20mbar G27-20mbar G3031-37mbar

kW

Art Nr SN A0000YYWW000

kW

kW

kW

kW

kW

ESGR PT

LU RO EE

YY-WW

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 21

Keep the boiler accessible at all timesPlace the boiler on a base to make it easier to clean the roomThe boiler can be located along a partition on one of its sides provided there is a 500 mm space on the opposite sideAllow enough space around the boiler to facilitate accessibility and maintenance The minimum recommended dimensions are shown in the illustrationMake sure there is a connection to the water drainage system close to the boiler to discharge any condensates

ImportantTo fit the boiler position the pallet with the package 25 m in front of the desired location for the installation This distance is required to allow the boiler to be removed from its pallet

Tab18Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 115

A (mm) 500 500 500B (mm) 1082 1304 1304

To allow the intake of combustion air sufficient ventilation must be provided in the boiler room the cross section and position of which must satisfy the regulations in force

Great Britain BS 5440 Part 1 and Part 2

For boilers with a nominal output of more than 70 kW Upper and lower air vents comshypulsory

BS 6644 and IGEMUP-10

Caution

Avoid any low points in the flue gas and condensate discharge circuit in order to prevent any accumulation of condensatesDo not block the air inlets in the room or the combustion product evacuation or condensation water flow pipes (even partially)

If the boiler is installed in closed premises respect the minimum dimensions given in the diagram below Also allow for openings to obviate the following hazards

Accumulation of gasOverheating of the premisesGreat Britain Minimum cross section of openings see BS 5440 Part 1 and Part 2 and BS 6644

523 Ventilation

To allow the intake of combustion air sufficient ventilation must be provided in the boiler room for which the cross section and position must satisfy the regulations in force in the country in which the boiler is installed

Great Britain BS 5440 Part 1 and Part 2

For boilers with a nominal output of more than 70 kW Upper and lower air vents comshypulsory

BS 6644 and IGEMUP-10

Fig9

MW-2000679-03

500

B

1100

AS1

S2

260

580

350

600

500

5 Installation

22 Gas 120 ACE 7717202 - v03 - 24062019

If the boiler is installed in closed premises respect the minimum dimensions given in the diagram below Also allow for openings to obviate the following hazards

Accumulation of gasOverheating of the premisesGreat Britain Minimum cross section of openings see BS 5440 Part 1 and Part 2 and BS 6644

524 Fitting the outdoor sensor

Plugs diameter 4 mmdrill diameter 6 mm

1 Choose a recommended location for the outdoor sensor2 Put the 2 plugs in place delivered with the sensor3 Secure the sensor using the screws provided (diameter 4 mm)4 Connect the cable to the outdoor temperature sensor

Recommended positions

Place the outside sensor in a position that covers the following characteristics

On a faccedilade of the area to be heated on the north if possibleHalf way up the wall of the area to be heatedUnder the influence of changes in the weatherProtected from direct sunlightEasy to access

Fig11

MW-8800N001-3

2

1

2

11

2

H

12 H (min 25 m)

12 H (min 25 m)

12 Z

H

Z

1 Optimum location2 Possible position

H Inhabited height controlled by the sensorZ Inhabited area controlled by the sensor

Positions to be avoided

Avoid placing the outside sensor in a position with the following characteristics

Masked by part of the building (balcony roof etc)Close to a disruptive heat source (sun chimney ventilation grid etc)

Fig10

MW-8800N003-6

23

4

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 23

Fig12

MW-3000014-2

53 Transport

Transport the boiler pallet with a manual or electric pallet truck

54 Unpacking and preparing the boiler

Caution

Wear gloves to handle the boilerTransport the boiler pallet with a manual or electric pallet truckUse carrying bars (not provided) to move the boiler

ImportantTo fit the boiler position the pallet with the package 25 m in front of the desired location for the installation This distance is required to allow the boiler to be removed from its pallet

1 Cut the packaging2 Remove the packaging from the boiler but leave the boiler on the

shipping pallet

ImportantThe documentation bag (user manual + accessories) is contained in the protective block

Fig13

MW-6000736-01

Manual

11

12

5 Installation

24 Gas 120 ACE 7717202 - v03 - 24062019

3 Using a long tool unlock and remove the boilers front door Disconnect the earth wire

4 Remove the mounting bolts from the unloading ramps and the boiler (4 bolts at the rear and 4 bolts at the front)

5 Pull out the unloading ramps and turn them over6 Align the ramps with the rear castor wheels on the boiler

Fig14

MW-6000761-01

3

3

Fig15

MW-6000737-01

4

4

Fig16

MW-6000738-01

5

5

6

6

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 25

7 Lock the ramps correctly onto the pallet8 Screw the unloading ramps onto the pallet9 Fold down the ends of the ramp so that they rest on the ground

10 Tilt the boiler backwards until it is resting on the castor wheels then remove it from the pallet

11 Recycle the pallet

Fig17

MW-6000770-01

9

9

8

7

Fig18

MW-6000739-02

600

350

11

10

550

5 Installation

26 Gas 120 ACE 7717202 - v03 - 24062019

12 Level the boiler using the adjustable feet(1) Factory setting 30 mm adjustment range 20 to 40 mm

CautionThe rear castor wheels must no longer be in contact with the ground

55 Hydraulic connections

551 Water treatment

In many cases the boiler and the heating system can be filled with mains water without treating the water

CautionDo not add any chemical products to the heating water without first consulting a water treatment specialist For example antifreeze water softeners products to increase or reduce the pH value chemical additives andor inhibitors These may cause faults in the boiler and damage the heat exchanger

Important

Flush the installation with at least 3 times the volume of water contained in the heating systemFlush the DHW circuit with at least 20 times its volume of water

The water in the installation must comply with following specifications

Tab19 Installation water specifications Initial commissioning Concentration (top up)Degree of acidity (untreated water) pH 65 - 85 65 - 85

Degree of acidity (treated washyter) pH 70 - 90 70 - 90

Conductivity at 25degC μScm le 500 le 500Chlorides mglitre le 50 le 50Other components mglitre lt 1 lt 1

Total water hardnessdegf 5 - 35 le 15degdH 28 - 200 le 85mmollitre(1) 05 - 35 lt 15

(1) Flow temperature less than 90degC mdash Maximum hardness 150 mmoll

Fig19

MW-6000773-01

(1)

12

12

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 27

ImportantIf water treatment proves necessary Remeha recommends the following manufacturers

CillitClimalifeFernoxPermoSentinel

552 Flushing new installations and installations less than 6 months old

Before filling the heating installation it is essential to remove any debris (copper caulking soldering flux) from the installation

1 Clean the installation with a powerful universal cleaner2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

553 Flushing an existing installation

Before filling the heating installation it is essential to remove any sludge deposits which have accumulated in the heating circuit over the years

1 Remove any sludge from the installation2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

554 Connecting the heating circuit

ImportantAbide by the information shown in the hydraulic diagrams

The pipes are not provided

Caution

The heating pipe must be mounted in accordance with the provisions applicableIf installing stop valves position the filldrain valve and the expansion vessel between the stop valves and the boilerAlways install a safety valve calibrated to a maximum of 4 bar on the heating circuit The safety valve can be connected to a venting pot The safety valve must not be used to drain the heating circuitIt is recommended to install a sludge collector on all installations

SeeIf fitting with a hydraulic kit (low-loss header or plate heat exchanger) refer to the kit manual

555 Connecting the condensate discharge pipe

Use a neutralisation station to achieve a pH value of more than 65 (in accordance with prevailing regulations)Discharge the condensates directly into the mains drainage system via a siphon In view of the acidity level (pH 25 to 3) only condensate discharge pipes made from compatible plastic should be used

5 Installation

28 Gas 120 ACE 7717202 - v03 - 24062019

The condensate discharge pipe is located at the rear of the boiler

Do not block the condensate discharge pipeTilt the discharge pipe by at least 30 mm per metre and make sure there are no low points that could cause the accumulation of water or deposits Maximum horizontal length 5 metresDo not drain condensation water into a roof gutterConnect the condensate discharge pipe in accordance with prevailing standardsIt is preferable to use the condensate neutralisers recommended by the manufacturer of the boiler

1 Connect a plastic hose to the condensate discharge outlet (DN 22)2 Insert the other end of the hose into a waste water discharge outlet

556 Filling the siphon

DangerIf operating with the siphon empty combustion products will escape into the premises in which the boiler is installed

1 Pour water into the flue gas pipe (central pipe) until it flows out of the condensate discharge pipe

56 Gas connection

Danger

Close the main gas valve before starting work on the gas pipesThe diameters of the pipes must be defined in accordance with the standards in force in your countryConnect the gas pipe in accordance with prevailing standards and regulationsEnsure that there is no dust in the gas pipe

The gas pipes are not providedIn old gas networks we recommend fitting a gas filter with a low pressure drop upstream of this point

1 Clean the gas supply pipe2 Remove the anti-dust plug located on the boilers gas inlet3 Mount a gas stop valve (not provided) on the boilers gas inlet4 Connect the gas inlet pipe to the gas stop valve

Fig20

MW-2000825-01

pH gt 65

Oslash32A

Fig21

MW-6000742-02

1

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 29

5 Close the gas supply valve before testing the pressure on the gas supply pipe to avoid damage caused by excessive pressure on the gas regulator Decompress before reopening the valve

561 Gas supply

Before mounting check that the gas meter has sufficient capacity (in m3h) To do this you should bear in mind the consumption of all appliances If the capacity of the gas meter is too low inform the gas supply companyThe boilers are preset to run on G20 gas (gas H) and can be adapted to run with the following gases

G31 (gas P)G3031 (gas BP)

ImportantTo use a different type of gas contact an approved assistance service

57 Air supplyflue gas outlet connections

571 Classification

The discharge and intake pipes must be certified for the appropriate configuration and must meet the requirements of the prevailing installation standards in the country

Tab20 Configurations and recommendations for the flue systemConfiguration Principle DescriptionB23B23P

AD-3001055-01

Connection to a chimney using a CE connection kit (single pipe in a flue comshybustion air taken from the boiler room)Follow the connection instructions and adhere to the recommended maximum pipe lengthsComply with the applicable regulations governing ventilation and cross-secshytions for room aeration vents

B33

MW-5000925-1

Room-ventilated version

Without down-draught diverterJoint flue gas discharge via the roof with guaranteed natural draft (at all times underpressure in the joint discharge duct)Flue gas discharge rinsed with air air from the installation area (special conshystruction)The IP rating of the boiler is lowered to IP20

C13C13X

AD-3001056-01

Airflue gas connection using concentric pipes to a horizontal terminal (so-called forced flue) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

5 Installation

30 Gas 120 ACE 7717202 - v03 - 24062019

Configuration Principle DescriptionC33C33X

AD-3001057-01

Airflue gas connection using concentric pipes to a vertical terminal (roof outshylet) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

C43C43X

MW-2000822-01

Airflue gas connection via concentric pipes to a common pipe supplying severshyal heating applicationsThe common pipe has a roof connection to a vertical terminal that draws in the air required for combustion and discharges the combustion productsUse of CE-certified system

C53

AD-3001058-02

Airflue gas connection via separate pipes lead to two separate terminals One draws in the air required for combustion and the other discharges the combusshytion productsThe outlets may be in different pressure zonesDo not install the air supply and discharge on opposing surfacesUse of CE-certified system

C63C63X

The installer is responsible for installing a CE-certified discharge system that complies with the manufacturers recommendations (temperature flow pressure etc)

The maximum pressure drop in the pipes ΔP must not exceed the values given in the table below The pipes must be certified for this type of use and for a temperature of more than 100 degC The terminal part of the flue gas pipe must be certified as complying with the EN 1856-1 StandardIf installing discharge and intake pipes not supplied by Remeha these must be certified for the intended type of use and their maximum pressure drop must be compliant

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 31

Configuration Principle DescriptionC83C83X

MW-2000823-01

Flue gas connection to a collective flue for sealed boilers The air supply is inshydividual via a terminal coming from outside the buildingA concentric pipe can be used to both supply the boiler with combustion air and connect to the collective flue gas discharge systemThe chimney or flue gas pipe must be suitable for such use and the system CE certified

C93C93X

AD-3001059-01

Airflue gas connection via concentric pipes in an existing chimney The air supshyply in the chimney may be installed via the existing channel or via tubing Flue gas discharge and air intake are via a vertical terminal at the top of the chimney

The air intake and discharge must be close enough to be in the same pressure zoneThe minimum cross-sections are shown in the table belowThe flue system must be suitable for the intended use and the system CE certishyfied

Tab21 Minimum dimensions of the duct or pipe C93 C93X

Version (D) Without air supply With air supplyRigid 80 mm Oslash 130 mm 130 x 130 mm Oslash 140 mm 130 x 130 mmRigid 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmRigid 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmFlexible 80 mm Oslash 130 mm 130 x 130 mm Oslash 145 mm 130 x 130 mmFlexible 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmFlexible 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmConcentric 80125 mm Oslash 145 mm 145 x 145 mm Oslash 145 mm 145 x 145 mmConcentric 100150 mm Oslash 170 mm 170 x 170 mm Oslash 170 mm 170 x 170 mmConcentric 150200 mm Oslash 270 mm 270 x 270 mm - -

ImportantThe duct must comply with the air density requirements of the local regulations

Important

Only original components are authorised for connection to the boiler and for the terminalThe clear section must comply with the standardThe chimney must be swept before installing the discharge flue

CautionEnsure that the flue gas discharge pipes are securely attached to the wall with suitable retaining flanges to prevent any damage and guarantee the tightness of every gasket in the circuit

CautionThe minimum gradient of the condensates discharge pipe from the boiler to the waste water discharge must be 1 cm per linear metre

Fig22 Minimum dimensions of the duct or pipe C93 C93X

AD-3000330-03

D

Oslash

D

5 Installation

32 Gas 120 ACE 7717202 - v03 - 24062019

572 Lengths of the airflue gas pipes

The maximum lengths (Lmax) given in the table are valid for pipes in which the horizontal sections do not exceed one metre in total For each additional metre of horizontal pipe a multiplication coefficient of 12 must be applied when calculating the total length L The total length L is calculated by adding the lengths of the straight airflue gas pipes and the equivalent lengths of the other componentsAlways ensure that L is less than Lmax

ImportantFor the list of flue gas system accessories and the equivalent lengths refer to the current price list

Tab22 Lengths of the airflue gas pipes in metresConfigurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 100 mm 26 24 19

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 110 mm 40 40 40

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 110 mm 295 24 175

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 80125 mm - - -

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 100150 mm 9 8 59

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 80125 mm - - -

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 100150 mm 115 10 94

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 80125 mm over 2x80 mm

- - -

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 100150 mm over 2x100 mm

23 175 Air 11Flue gases 5

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm110 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 110150 mm110 mm

16 132 10

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 33

Configurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 110150 mm110 mm

165 135 94

Tab23 PPS pipe reduction for each element used

Diameter 80 mmSingle

80125 mmConcentric

100 mmSingle

100150 mmConcentric

45deg elbow 12 m 10 m 11 m 10 m87deg elbow 19 m 15 m 20 m 37 mStraight inspection tube 03 m 06 m - 10 m87deg inspection elbow 19 m 20 m 48 m -Inspection T 42 m 27 m 56 m 25 mInspection tube for flexible pipe 03 m - 05 m -

573 Dimensions of flue gas outlet pipe

WarningThe pipes connected to the flue gas adapter must satisfy the following dimension requirements

d1 External dimensions of flue gas outlet pipe

Tab24 Dimensions of pipe d1 (min-max)80 mm 793 - 803 mm100 mm 993 - 1003 mm150 mm 149 - 151 mm

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipe

Tab25 Dimensions of pipe d1 (min-max) D1 (min-max)8080 mm 793 - 803 mm 793 - 803 mm100100 mm 993 - 1003 mm 993 - 1003 mm110110 mm 1093 - 1103 mm 1093 - 1103 mm150150 mm 149 - 151 mm 149 - 151 mm

Fig23 Dimensions of open connection

AD-3001094-01

oslashd1

Fig24 Dimensions of parallel connection

AD-3000963-01

oslashd1 oslashD1

5 Installation

34 Gas 120 ACE 7717202 - v03 - 24062019

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipeL1 Length difference between flue gas outlet pipe and air supply pipe

Tab26 Dimensions of pipe d1 (min-max) D1 (min-max) L1

(1) (min-max)80125 mm 793 - 803 mm 124 - 1255 mm 0 - 15 mm100150 mm 993 - 1003 mm 149 - 151 mm 0 - 15 mm

(1) Shorten the inner pipe if the length difference is too great

574 Connection to the flue gas pipe

At delivery the flue gas outletair supply is fixed inside the boiler

1 Using a long tool unlock and remove the boilers front door2 Remove the boiler outlet

3 Two options for connection to the flue gas pipe

Option Description3a Connection to a vertical flue gas pipe Position the flue gas

outletair supply directly at the boiler outlet3b Connection to a horizontal flue gas pipe Insert an outlet elshy

bow ( not supplied) before the flue gas outletair supply

ImportantLubricate the gaskets on the flue system during assembly

Fig25 Dimensions of concentric connection

AD-3000962-01

oslashd1

L1

oslashD1

Fig26

MW-2000867-02

1

2

1

Fig27

3a 3b

MW-2000868-01

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 35

Fastening the coaxial pipes Fasten the intake pipes with two galvanised Oslash 42 mm screws with a maximum length of 16 mm

CautionBefore fixing the screws make sure that at least 45 cm of pipe is inserted in the gasket of the other pipe

WarningGuarantee a minimum pipe slope towards the boiler of at least 5 cm per metre

Fig28 Fastening the coaxial pipes using screws

BO-0000030

16 mm

5 Installation

36 Gas 120 ACE 7717202 - v03 - 24062019

6 Operation

61 Settings

To configure the installation and use the boiler please refer to the control unit manual

6 Operation

7717202 - v03 - 24062019 Gas 120 ACE 37

7 Maintenance

71 General

We recommend having the boiler inspected and serviced at regular intervals

CautionDo not neglect to service the boiler Contact a qualified professional or take out a maintenance contract for the obligatory annual servicing of the boilerFailure to service the appliance voids the warranty

Danger of electric shockBefore service work is started the boiler has to be de-energised and secured from accidentally being switched back on

CautionHave an inspection carried out and the flues swept at least once a year or more depending on the regulations in force in your country

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

CautionAfter maintenance or repair work check the entire heating system to ensure that there are no leaks

CautionOnly genuine spare parts may be used

72 Specific maintenance operations

721 Cleaning the siphon

1 Remove the flue gas outlet discharge pipe

2 Remove the condensate discharge pipe 3 Remove the screw from the siphon

Fig29

1

MW-2000903-01

Fig30

2

3

MW-2000904-01

7 Maintenance

38 Gas 120 ACE 7717202 - v03 - 24062019

4 Pull the siphon downwards to disengage it and pivot it to release it

5 Flush the siphon 6 Drain the siphon

7 Fill the siphon with clean water up to the mark 8 Lubricate the siphon gasket9 Re-engage the siphon and refit the screw

10 Refit the two pipes

722 Checking the ionisation current

1 Check the ionisation current at full load and at low loadThe value is stable after 1 minute

2 Clean or replace the ionisationignition electrode if the value is lower than 4 microA

Fig31

4

90deg

MW-2000905-01

Fig32

MW-2000843-01

Fig33

MW-2000844-01

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 39

723 Replace the ionizationignition electrode

The ionizationignition electrode must be replaced if

The ionization current is lt 4 microAThe electrode is damaged or worn

1 Remove the plug of the electrode from the igniter

ImportantThe ignition cable is fixed to the electrode and therefore may not be removed

2 Remove the two screws3 Remove the entire component4 Fit the new ionizationignition electrode with a new seal5 Reassemble the unit in the reverse order to disassembly

724 Servicing the forced flue connection pipes

1 Open the inspection hatches or remove the pipes2 Check that the air supply and discharge pipes are not blocked

If necessary clean the discharge pipe3 Check the tightness of the flue gas system4 Replace the tightness gaskets and if necessary any sections of pipe

until tightness is perfect

725 Checking the burner and cleaning the heat exchanger

1 Remove the air inlet flue on the venturi2 Loosen the gland on the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

Fig34

AD-0000088-01

4

1

2

3

Fig35 Removing the fan

AD-3001178-01

1

3

4

2

5

7 Maintenance

40 Gas 120 ACE 7717202 - v03 - 24062019

6 Remove the front plate from the heat exchanger7 Carefully lift the front plate including the burner and fan away from

the heat exchanger

8 Use a vacuum cleaner fitted with a special endpiece (accessory) to clean the top part of the heat exchanger (combustion chamber)

9 Vacuum again without the top brush on the end piece10 Clean the lower section of the heat exchanger with the special

cleaning blade (accessory)11 Check (eg using a mirror) whether any visible contamination has

been left behind If it has remove it with the vacuum cleaner12 Check that the burner cover of the dismantled burner is free from

cracks andor damage If not replace the burnerServicing the burner is usually not necessary it is self-cleaning Use compressed air to carefully blow away any dust

13 Reassemble the unit in reverse order

CautionRemember to reconnect the fan plugCheck that the gasket is correctly positioned between the mixing elbow and the heat exchanger (the gasket must lie absolutely flat in the appropriate groove to ensure that no gas can leak)Tighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the front plate nuts with a torque wrench to the firmness of 10 Nm

14 Open the gas supply and switch the power supply to the boiler back on

Fig36 Removing the front plate fan and burner

AD-3001179-01

6

7

Fig37 Cleaning the heat exchanger

AD-3001180-01

10

8 9

12

11

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 41

726 Checking the non-return valve

1 Remove the air inlet pipe from the venturi2 Unscrew the gland of the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

6 Dismantle the fan7 Remove the fan together with the gas valve unit8 Inspect the non-return valve and replace it in the event of a defect or

damage or if the maintenance kit contains a non-return valve9 Reassemble in the reverse order

CautionRemember to reconnect the fan plugTighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the two fan nuts with a torque wrench to the firmness of 38 Nm

Fig38 Disconnecting the fan

AD-3001178-01

1

3

4

2

5

Fig39 Checking the non-return valve

AD-3001181-01

2x

68

7

9

7 Maintenance

42 Gas 120 ACE 7717202 - v03 - 24062019

8 Decommissioning

81 Decommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

To switch off the boiler temporarily or permanently proceed as follows

1 Switch the boiler off2 Cut the electrical power to the boiler3 Close the gas valve on the boiler4 Drain the central heating system or ensure frost protection5 Close the door of the boiler to prevent air circulating inside it6 Remove the pipe connecting the boiler to the chimney and close the

nozzle with a plug

82 Recommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

Should it prove necessary to carry out the recommissioning of the boiler proceed as follows

1 Re-establish electrical power to the boiler2 Fit and check the flue gas pipe3 Fill the siphon with water4 Fill the central heating system5 Open the boiler gas valve6 Start up the boiler

8 Decommissioning

7717202 - v03 - 24062019 Gas 120 ACE 43

9 Disposal and recyclingCautionOnly qualified professionals are permitted to remove and dispose of the boiler in accordance with local and national regulations

If you need to remove the boiler proceed as follows

1 Switch off the boiler2 Cut the power supply to the boiler3 Close the main gas valve4 Close the water mains5 Close the gas valve on the boiler6 Drain the installation7 Remove the airflue gas pipes8 Disconnect all pipes9 Dismantle the boiler

Fig40

MW-3000179-03

9 Disposal and recycling

44 Gas 120 ACE 7717202 - v03 - 24062019

10 Environmental

101 Energy savings

Energy-saving advice

Do not block ventilation outletsDo not cover the radiators Do not hang curtains in front of the radiatorsInstall reflective panels behind the radiators to prevent heat lossesInsulate the pipes in rooms that are not heated (cellars and lofts)Close the radiators in rooms not in useDo not run hot (or cold) water pointlesslyInstall an energy-saving shower head which can save up to 40 energyTake showers rather than baths A bath consumes twice as much water and energy

102 Room thermostat and settings

Various models of room thermostat are available The type of thermostat used and the parameter selected impact total energy consumption

A modulating regulator which may be combined with thermostatic valves is eco-friendly in terms of energy and offers an excellent level of comfort This combination allows you to set the temperature separately for each room However do not install thermostatic radiator valves in the room in which the room thermostat is locatedComplete opening and closing of the thermostatic radiator valves causes undesirable variations in temperature Therefore these must be openedclosed progressivelySet the room thermostat to a temperature of approximately 20degC to reduce heating costs and energy consumptionLower the thermostat setting to approximately 16degC at night or when you are not at home This reduces heating costs and energy consumptionLower the thermostat setting well before airing the roomsSet the water temperature to a lower level in summer than in winter (eg 60degC and 80degC respectively) when an ONOFF thermostatis usedWhen clock thermostats and programmable thermostats are to be set do not forget to take any holidays and days when no one is at home into account

10 Environmental

7717202 - v03 - 24062019 Gas 120 ACE 45

11 Warranty

111 General

We would like to thank you for buying one of our appliances and for your trust in our productIn order to ensure continued safe and efficient operation we recommend that the product is regularly inspected and maintainedYour installer and our service department can assist with this

112 Terms of warranty

The following provisions do not affect the application in favour of the buyer of the legal provisions with regard to hidden defects that are applicable in the buyers countryThis appliance comes with a warranty that covers all manufacturing faults the warranty period will commence on the date of purchase stated on the installers invoiceThe warranty period is stated in our price listAs a manufacturer we can by no means be held liable if the appliance is used incorrectly is poorly maintained or not maintained at all or is not installed correctly (it is your responsibility to ensure that installation is carried out by a qualified installer)In particular we cannot be held liable for material damage intangible losses or physical injury resulting from an installation that does not comply with

Legal or regulatory requirements or provisions laid down by the local authoritiesNational or local regulations and special provisions relating to the installationOur manuals and installation instructions in particular in terms of regular maintenance of the appliances

Our warranty is limited to the replacement or repair of the parts found to be defective by our technical services team excluding labour transfer and transport costsOur warranty does not cover replacement or repair costs for parts that may become defective due to normal wear incorrect usage the intervention of unqualified third parties inadequate or insufficient supervision or maintenance a mains supply that is not appropriate or the use of unsuitable or poor quality fuelSmaller parts such as motors pumps electrical valves etc are guaranteed only if these parts have never been dismantledThe rights established in European Directive 9944EEC implemented by legal decree No 24 of 2 February 2002 and published in Official Journal No 57 of 8 March 2002 remain in force

11 Warranty

46 Gas 120 ACE 7717202 - v03 - 24062019

12 Spare parts

121 General

If inspection or maintenance work bring to light the need to replace a component in the boilerProvide the reference number given in the spare parts list when ordering a spare part

CautionOnly genuine spare parts may be used

122 Spare parts lists

1221 Exchanger

Fig41

MW-6000743-01

811x

7

7

4

2

16

3

10

119

65

1

13

12

18

14

19

15

18

17

Tab27

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

1 7699615 Complete exchanger x 1 7699614 Complete exchanger x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 47

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

2 S101564 Exchanger front plate x x x3 S54731 Exchanger inspection hatch insulation x x x4 S57241 Exchanger inspection hatch gasket x x x5 S100052 M4x10 self-locking screw (x20) x x x6 S54754 FURQ65 burner x 6 S57477 FURQ85 burner x x7 7623837 Set of 10 k NTC sensors x x x8 S54755 M6 nut (x20) x x x9 7659755 M4x10 screw (x10) x x x10 S53489 Electrode gasket (x10) x x x11 7692359 Ignition electrode x x x12 7631936 Flue gas flow pipe diameter 100 mm x x x13 7624643 NTC 2x20 k flue gas sensor with gasket x x x14 7624619 Ignition transformer x x x15 S56987 ZP M6x16 screw (x10) x x x16 7616253 Valve with support x x x17 7680596 Exchanger bracket x 17 7673616 Exchanger bracket x x18 7701752 Gasket diameter 100 mm (x5) x x x19 7632708 Earth electric clip (x2) x x x

1222 Gas circuit

Fig42

MW-6000744-01

3

2

5

6

9

4

8

10

7

12

11

1

14

13

13

12 Spare parts

48 Gas 120 ACE 7717202 - v03 - 24062019

Tab28Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 S101543 Silencer x 1 S101520 Silencer x 1 S101578 Silencer x2 S54777 Venturi gasket (x5) x 2 S59215 Gas valve-venturi gasket (x5) x 2 S101593 Gaskets (kit) x3 S101726 Fan RG 1481200-3633 x x 3 S100036 Fan RG 148 1200-3633-010202 x4 S101596 Gas valve VK4115v1386 x 4 S101597 Gas valve VK4115vb1012 x 4 S101510 Gas valve GB-ND 057 XP x5 S54766 Venturi x 5 S57488 Venturi x 5 S101595 Venturi VMS 45900450-010 x6 S59215 Gas valve-venturi gasket (x5) x x 7 S57827 Gas valve unit flange x8 S57828 268x22x25 O-ring (x5) x9 S101631 Diaphragm x10 7616249 Flue gas sensor cap (5x) x x x11 S56155 238x177x2 gasket (x20) x x x12 95760050 C HC M4-12 88 ZN3 screw x x x13 S48512 M5-10 screw (x10) x x x14 S101590 Silencer retaining clip x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 49

1223 Hydraulic circuit

Fig43

MW-6000745-01

1

14

6

9

11

8

12

5

37

9

10

2

4

13

Tab29Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7680598 Complete flow pipe x 1 7670807 Complete flow pipe x x2 7672557 Complete return pipe x x x3 7674076 Complete gas pipe x 3 7680434 Complete gas pipe x 3 7670720 Complete gas pipe x4 7698560 HUBA G38 pressure gauge x x x5 94994712 PVC pipe diameter 16x12 x x x6 7699357 Water deflector diameter 100 mm x x x7 94902073 Drain valve 12 x x x8 94918138 Air vent x x x9 95013064 44x32x2 mm green gasket x x x10 95013060 24x17x2 mm green gasket x x 10 95013062 30x21x12 mm green gasket x11 7692329 Condensate hose x x x13 7706103 Assembled siphon height 160 mm x 13 7706038 Assembled siphon height 250 mm x x14 7103731 Condensate drain pan gasket x x x

12 Spare parts

50 Gas 120 ACE 7717202 - v03 - 24062019

1224 Boiler body

Fig44

MW-6000746-01

2

2

1

6

3

34

5

4

Tab30Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7686377 Assembled frame x 1 7686139 Assembled frame x x2 7679958 117x34 handle diameter 65 mm x x x3 7676037 Wheel x x x4 7688301 Frame lateral gasket x 4 7688008 Frame lateral gasket x x5 7688353 Front panel gasket x 5 7688007 Front panel gasket x x6 7693874 R4-05 front panel lock x x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 51

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

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F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

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Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

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Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

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E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

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E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 9: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

Failure to abide by the instructions on installing and maintaining the applianceFailure to abide by the instructions on using the applianceFaulty or insufficient maintenance of the appliance

132 Installers liability

The installer is responsible for the installation and initial commissioning of the appliance The installer must observe the following instructions

Read and follow the instructions given in the manuals provided with the applianceInstall the appliance in compliance with prevailing legislation and standardsCarry out initial commissioning and any checks necessaryExplain the installation to the userIf maintenance is necessary warn the user of the obligation to check the appliance and keep it in good working orderGive all the instruction manuals to the user

133 Users liability

To guarantee optimum operation of the system you must abide by the following instructions

Read and follow the instructions given in the manuals provided with the applianceCall on a qualified professional to carry out installation and initial commissioningGet your installer to explain your installation to youHave the required inspections and maintenance carried out by a qualified installerKeep the instruction manuals in good condition close to the appliance

1 Safety

7717202 - v03 - 24062019 Gas 120 ACE 9

2 Symbols used

21 Symbols used in the manual

This manual uses various danger levels to draw attention to special instructions We do this to improve user safety to prevent problems and to guarantee correct operation of the appliance

DangerRisk of dangerous situations that may result in serious personal injury

Danger of electric shockRisk of electric shock

WarningRisk of dangerous situations that may result in minor personal injury

CautionRisk of material damage

ImportantPlease note important information

SeeReference to other manuals or pages in this manual

22 Symbols used on the appliance

1 Alternating current2 Protective earthing3 Before installing and commissioning the appliance carefully read

the instruction manuals provided4 Dispose of used products through an appropriate recovery and

recycling structure5 Caution danger of electric shock live parts Disconnect the mains

power prior to carrying out any work

Fig1

1 2

MW-2000068-1

1

2

3

4

5

2 Symbols used

10 Gas 120 ACE 7717202 - v03 - 24062019

3 Technical specifications

31 Homologations

311 Directives

This product has been manufactured and put into circulation in accordance with the requirements and standards of the following European Directives

Gas Appliances Regulation (EU) (2016426)

Pressure Equipment Directive 201468EU

Electromagnetic Compatibility Directive (201430EU)

Low Voltage Directive (201435EU)

Efficiency Directive (9242EEC)

European Ecodesign Directive (2009125EC)EU Regulation (8132013)

Energy Labelling Framework Regulation (EU) (20171369)EU Regulation (8112013)

BS 7074 Part 1 Application selection and installation of expansion vessels and ancillary equipment for sealed water systemsBS 6644 Specification for the installation of gas-fired condensing boilers with a nominal output exceeding 70 kWBS EN 12828 Design for water-based heating systemsBS EN 13831 Closed expansion vessels

Apart from the legal provisions and Directives the additional Directives described in these instructions must also be observedFor all provisions and Directives referred to in these instructions it is agreed that all addenda or subsequent provisions will apply at the time of installation

312 EC Declaration of Conformity

The unit complies with the standard type described in the EC declaration of conformity It has been manufactured and commissioned in accordance with European directivesThe original declaration of conformity is available from the manufacturer

313 Gas categories

Tab1 Czech Republic Spain Greece Portugal Switzerland UK

Category Gas type Connection pressure (mbar) Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

II2H3BP G20 (H gas) 20 X X X G30G31 (butanepropane) 303750 X X X

314 Certifications

Tab2 CertificationsCE number 0085CT0009NOx class 6 (EN 15502-1)

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 11

Type of flue gas connection Chimney

B23B23PB33

Forced flue

C13C13XC33C33XC43C43XC53C63C63XC83C83XC93C93X

315 Factory test

Before leaving the factory each boiler is optimally set and tested for

Electrical safetySettings (CO2)Water tightnessGas tightnessParameter setting

32 Technical data

Tab3 GeneralGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Nominal heat output (Pn)Central heating operation (80 degC60 degC)

minndashmax kW 120 - 615 141 - 842 189 - 1039

Nominal heat output (Pn)Central heating operation (50 degC30 degC)

minndashmax kW 135 - 650 158 - 895 212 - 1097

Nominal input power (Qn)Heating mode (Hi)

minndashmax kW 122 - 620 146 - 860 196 - 1070

Nominal input power (Qn)Heating operation (Hi) G31 (propane)

minndashmax kW 122 - 620 221 - 860 212 - 1070

Nominal input power (Qn)Central heating operation (Hs)

minndashmax kW 137 - 689 162 - 955 217 - 1189

Full load heating mode efficiency (Hi) (8060 degC) (9242EEC)

992 979 971

Full load heating mode efficiency (Hi) (50 degC30 degC)

1046 1041 1025

Part load heating mode efficiency (9242EEC) (return temperature 30 degC)

1104 1081 108

Tab4 Gas and flue gas valuesGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115G20 gas consumption (H gas)(1) minndashmax m3h 13 - 66 15 - 91 20 - 117Gas consumption G31 (propane)(1)

minndashmax m3h 05 - 25 09 - 35 09 - 45

3 Technical specifications

12 Gas 120 ACE 7717202 - v03 - 24062019

Gas 120 ACE Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

Gas resistance G20 (H gas)(2) max mbar 20 25 30BREAM NOx mgkWh 32 29 35Flue gas quantity minndashmax m3h 18 - 90 22 - 125 30 - 160Flue gas temperature minndashmax degC 30 - 120 30 - 120 30 - 120Maximum counter pressure (Pn) Pa 100 160 220

(1) Gas consumption based on lower heating value in standardised conditions T=28815 K p=101325 mbar Gag 3033 G25 2925 G31 8800 MJm3

(2) Gas resistance between boiler connection and measurement point on the gas valve unit

Tab5Gas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Gas inlet pressure G20 (H gas) minndashmax mbar 17 - 25 17 - 25 17 - 25G30G31 gas inlet pressure (ButanePropane) minndashmax mbar 37 - 50 37 - 50 37 - 50G31 gas inlet pressure (Propane) minndashmax mbar 37 - 50 37 - 50 37 - 50

Tab6 Central heating circuit dataGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Water content l 71 101 101Water operating pressure min bar 08 08 08Water operating pressure (MOP) max bar 40 40 40Water temperature max degC 110 110 110Operating temperature max degC 90 90 90Pressure drop secondary circuit (ΔT = 20 K) mWC 17 16 26Maximum permitted temperature difference(1) max degC 40(1) 40(1) 35(1)

(1) with a maximum flow temperature of 80 degC

Tab7 Electrical dataGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Supply voltage (AC) V 230 230 230Power consumption ndash full load max W 92 124 180Power consumption - low load max W 25 24 344Power consumption ndash standby max W 6 5 9Electrical protection rating IP X1B X1B X1BFuses Main A 10 10 10

Tab8 Other dataGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Total weight (empty) kg 98 109 109Average acoustic level at a distance of one meshytre from the boiler

dB(A) 40 45 45

SeeThe back cover for contact details

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 13

321 ErP technical parameters

Tab9 Technical parameters for boiler space heatersProduct name Gas 120 ACE

- 65Gas 120 ACE - 90

Gas 120 ACE - 115

Condensing boiler Yes Yes YesLow-temperature boiler(1) No No NoB1 boiler No No NoCogeneration space heater No No NoCombination heater No No NoRated heat output Prated kW 62 84 104

Useful heat output at rated heat output and high temperature regime(2)

P4 kW 615 842 1039

Useful heat output at 30 of rated heat output and low temperature regime(1)

P1 kW 205 279 347

Seasonal space heating energy efficiency ƞs 94 - -Useful efficiency at rated heat output and high temperature regime(2)

ƞ4 894 882 875

Useful efficiency at 30 of rated heat output and low temperature regime(1)

ƞ1 995 974 973

Auxiliary electricity consumption Full load elmax kW 0092 0124 0180Part load elmin kW 0025 0024 0034Stand-by PSB kW 0006 0005 0009

Other specifications Standby heat loss Pstby kW 0114 0119 0119Ignition burner power consumption Pign kW - - -Annual energy consumption QHE GJ 190 - -Sound power level indoors LWA dB 55 61 60Emissions of nitrogen oxides NOx mgkWh 29 41 41(1) Low temperature means for condensing boilers 30degC for low temperature boilers 37degC and for other heaters 50degC return temperature

(at heater inlet)(2) High temperature regime means 60 degC return temperature at heater inlet and 80 degC feed temperature at heater outlet

SeeThe back cover for contact details

322 Circulating pump (not provided)

The boiler is supplied without a circulating pump Take the boiler pressure drop and system pressure drop into account when selecting a pump

CautionThe maximum output of a pump that can be connected is 200 W Above this use an auxiliary relay adapted to the pump output

If possible install the pump in direct connection to the boiler on the return circuit

For more information see

Circulating pump

The maximum difference in temperature between the flow water and the return water and the speed at which the boiler temperature increases are restricted by the boilers control system

3 Technical specifications

14 Gas 120 ACE 7717202 - v03 - 24062019

Tab10 Minimum flow to be guaranteedMinimum flow to be guaranteed in the boiler Unit Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Minimum flow rate litreshour 290 340 455

A Dynamic head in mWcB Water flow rate (m3h)C Pressure drops

ΔT Maximum temperature difference between the flow water and the return water in the boiler

A Dynamic head in mWcB Water flow rate (m3h)C Pressure drops

ΔT Maximum temperature difference between the flow water and the return water in the boiler

A Dynamic head in mWcB Water flow rate (m3h)C Pressure drops

ΔT Maximum temperature difference between the flow water and the return water in the boiler

323 Sensor specifications

Outside temperature sensor specifications

Tab11 Outside temperature sensorTemperature degC -20 -16 -12 -8 -4 0 4 8 12 16 20 24Resistance Ω

(Ohm)2392 2088 1811 1562 1342 1149 984 842 720 616 528 454

Fig2 Pressure drops for Gas 120 ACE - 65

MW-2000671-3

T=20KT=40K

175

Fig3 Pressure drops for Gas 120 ACE - 90

MW-2000673-3

T=20KT=40K

362

Fig4 Pressure drops for Gas 120 ACE - 115

MW-2000674-3

T=20KT=35K

447

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 15

Boiler sensor return sensor

Tab12 Boiler sensor return sensorTemperature in degC

-20 -10 0 10 20 25 30 40 50 60 70 80 90 100 110

Resistance in Ω

98932 58879 36129 22804 14773 10000 9804 6652 4607 3252 2337 1707 1266 952 726

Circuit flow sensor domestic hot water sensor and system sensor

Tab13 Circuit flow sensor domestic hot water sensor and system sensorTemperature in degC 0 10 20 25 30 40 50 60 70 80 90Resistance in Ω 32014 19691 12474 10000 8080 5372 3661 2535 1794 1290 941

Specifications of the boiler flue gas sensor

Tab14 Boiler flue gas sensorTemperature degC 0 10 20 30 40 50 60 70 80 90 100Resistance Ohm 66000 40000 20000 16100 10600 7160 4940 3480 2490 1810 1340

33 Dimensions and connections

Fig5

MW-2000684-03

A

D

E

FG

BC

600 605150

92

132

240

141

418

5

2

34

107

105

95

100

1

255145

1 Heating circuit flow (R114)2 Gas inlet (G34)3 Heating circuit return (R114)

4 Condensate discharge (DN22)5 Flue gas pipe

Tab15 Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 1155 Diameter 100150 mm Diameter 100150 mm Diameter 100150 mmA (mm) 1340 1562 1562B (mm) 1164 1386 1386C (mm) 1082 1304 1304D (mm) 971 1193 1193

3 Technical specifications

16 Gas 120 ACE 7717202 - v03 - 24062019

Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 115E (mm) 410 632 632F (mm) 87 303 303G (mm) 128 350 350

34 Electrical diagram

341 Electrical diagram of boiler

Fig6

CU-GH-08

X3X4X5

X6

X8

1

2

3

1

2

3

X14

X7

X10

X11

X13

X12

1

2

3

4

5

25 A

Nrsquo

1

2

3

4

YE

GY

BR

GR

1

2

3

4

1

2

3

4

1

2

N L

1

2

1

2

OPTION

PRESSURE

SWITCH

MW-2000850-04

230V

1 2 3 4 5 6 7 8 9 10

24V

12 11

BL OR

10 9 8 7 6

GR BK RE YE BL

5 4 3 2 1

OR BK RE YE BL

Lrsquo

BL

GY

GY

GY

BL BR

GY

BL

BR

GY BL

BR

GY

BR

GR BK RE YE BL OR BK RE YE BL

BK

BL

BR

RE

GR

GR

BK

GR

GY

YE

BR

BL

OR

1

2

3

4

5

1

2

3

RE

BK

GR

BR

BK

BL

GR

1

2

BR

GR

GY

RE BL

BL

BK

BK

BR YE

GR PI

BL

BL

GR

PI

GR

RE

BR

YE

BK

BK

BR

GY

BL

BL

BR

GY

GY

BR

BL BL GY

BR

BL

BR

BK

GYWH

GY

BL

GY

BL

BR

BK

WH

BL

GY

1 12

4

5

2

3

6

7

8

9

10

11

16

17

15

14

13

1 230 V connector connection with control unit2 Mains interference filter3 Earthing of boiler front door4 Return sensor (TR)5 Flow sensor (FTS)6 Flue gas sensor7 Flue gas pressure switch (specific option for the

Netherlands)8 Gas valve unit (GB)9 Igniter (IT)

10 Ionizationignition electrode (E)11 Fan supply12 24 V connector connection with control unit13 Storage information (CSU)14 Pressure sensor (PS)15 Fan control (PWM)16 Light17 Control unit (CU-GH08)BK BlackBL Blue

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 17

BR BrownGY GreenYellowYE YellowOR OrangeGR Green

PI PinkGY GreyRD RedWH White

3 Technical specifications

18 Gas 120 ACE 7717202 - v03 - 24062019

4 Description of the product

41 General description

Gas 120 ACE floor-standing condensing gas boilers have the following characteristics

Low polluting emissionsHigh-efficiency heatingElectronic control panelFlue gas discharge by a forced flue or chimney type connection with bi-flow option

The boilers are perfectly suited to cascade installation

42 Operating principle

421 Gasair setting

The casing fitted to the boiler is also used as an air box Air is drawn in by the fan and gas injected into the Venturi by the fan intake The fan speed is modulated according to the settings the heat demand and the actual temperatures measured by the temperature sensors The gas and air are mixed in the Venturi The gasair ratio command function accurately adjusts the quantities of gas and air required This provides optimum combustion over the entire output range The gasair mixture is sent to the burner located upstream of the heat exchanger

422 Settings and safety devices

ImportantThe settings and safety devices are only operational if the boiler is powered up

Tab16 Description of the safety devicesDevice DescriptionNTC flue gas sensor The control panel blocks the gas supply to the burner in the event of overheatingFlame detector by ionisation The boiler is put into safety lock-down in the event of gas shortage or incomplete cross-

lighting on the burnerHydraulic pressure switch When the pressure switch detects a pressure lower than 08 bar (008 MPa) a warning

message is displayed without stopping the circulating pumpPost-circulating pump After the burner stops depending on the room thermostat setting and if in heating

mode the circulating pump runs for a further 3 minutesFrost protection device When the flow temperature is lower than 5 degC the burner starts up and runs until the

flow temperature reaches 15 degC This device runs under the following conditions

The boiler is switched onThe gas supply is workingThe pressure in the system is higher than 05 bar (005 MPa)

Anti-blocking of the pump If there are no heating or domestic hot water requirements for 24 consecutive hours the pumps start up automatically and run for 10 seconds

Anticipatory start-up of the circulatshying pumps

In heating mode only the appliance can start up the circulating pumps before burner igshynition The duration and activation of anticipatory start-up depends on the installation reshyquirements and the operating temperatures The duration of anticipatory start-up of the circulating pumps therefore varies from a few seconds to several minutes

4 Description of the product

7717202 - v03 - 24062019 Gas 120 ACE 19

43 Main boiler components

1 Control unit2 Flow sensor3 Light4 Ignitionionization electrode5 Non-return valve6 Gas valve7 Heat exchanger (heating circuit)8 Return sensor9 Pressure gauge sensor

10 CU-GH-08 PCB housing11 Siphon12 Flue gas circuit13 Intake silencer14 Venturi15 Flue gas sensor16 Fan17 Automatic air vent18 Flue gas measuring point19 Combustion air measuring point20 Flue gas outletair supply

44 PCBs

441 Description of the CU-GH-08 PCB

This PCB controls the core boiler components sensors actuators and gas valveThis PCB is factory-fitted and fully cabled and does not require any operationThe sensors valves circulating pumps etc are connected at the control unit

45 Standard delivery

The Gas 120 ACE boiler comes in 2 packages including

Tab17 Package contentsPackage ContentPackage 1 A floor-standing gas boiler

A flue system outlet with a measuring point (stored in the boiler)An outdoor temperature sensorA data plateAn installation and service manual

Package 2 A control unitTwo control unit mounting bolts on the boilerA user manual

46 Accessories amp options

A detailed list of accessories and options can be found in our catalogue

Fig7

MW-2000670-02

16

7 13

12

11

10

19

18

20

17

14

15

6

5

2

9

4

3

1

8

4 Description of the product

20 Gas 120 ACE 7717202 - v03 - 24062019

5 Installation

51 Installation regulations

CautionInstallation of the boiler must be done by a qualified professional in accordance with prevailing local and national regulations

CautionA disconnection device must be fitted to the permanent pipes in accordance with the installation rules

CautionRespect the maximum water inlet pressure to ensure correct operation of the appliance referring to the Technical Specifications chapter

52 Choice of the location

Decide on the ideal position for installation bearing in mind any legal directives and the space required by the appliance

Install the boiler on a solid stable structure capable of bearing the weight of the appliance when full of water and fully equippedWhen choosing the position for installation of the boiler bear in mind the positions authorised for the combustion gas discharge outlets and the air intake ventDo not install the boiler near any heat sources

521 Data plate

The data plate is located on the back of the boilerThe data plate provides important information regarding the appliance

Serial numberModelGas categoryCN1CN2etc

Once installation is complete the second data plate supplied in the documentation bag can be affixed to a more visible part of the boilerIf the boiler is equipped with a hydraulic kit (low-loss header or plate heat exchanger) affix the data plate to the side of the boiler

522 Space required - Boiler ventilation

Decide on the ideal position for installation bearing in mind any legal directives and the space required by the appliance

Install the boiler on a solid stable structure capable of bearing the weight of the appliance when full of water and fully equippedWhen choosing the position for installation of the boiler bear in mind the positions authorised for the combustion gas discharge outlets and the air intake ventDo not install the boiler near any heat sources

Fig8

MW-6000735-01

Made in France0085

CN1 17

CN2 7

230 V 50 Hz

B23(P) - B33 - C13(X) - C33(X) - C43(X) - C53 - C63(X) - C83(X) - C93(X)

PMS= 4bar - 04MPa

Pn =

8060 degC

5030 degC

NOx class 6 (Nox lt 56 mgkWh)

Qn =Hi kW

4030 degC

189-1039

196-1070

212-1097

180W

0085CT009

Hs (G20) 217-1189

IP21Imax= 10A

Tmax= 90degC

FR

LT

IT

AT

CZ

PL

II2Esi3BP

II2H3BP

II2H3BP

II2H3BP

II2H3P

II2H3BP

II2H3BP

II2ELw3BP

G20-20mbar G25-25mbar G30G31-303750mbar

G20-20mbar G30G31 - 30mbar

G20-20mbar G30G31 - 303750 mbar

G20-20mbar G30G31 - 3037mbar

G20-20mbar G31 - 30mbar

G20-20mbar G30G31 - 50mbar

G20-20mbar G30G31-303750mbar

G20-20mbar G27-20mbar G3031-37mbar

kW

Art Nr SN A0000YYWW000

kW

kW

kW

kW

kW

ESGR PT

LU RO EE

YY-WW

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 21

Keep the boiler accessible at all timesPlace the boiler on a base to make it easier to clean the roomThe boiler can be located along a partition on one of its sides provided there is a 500 mm space on the opposite sideAllow enough space around the boiler to facilitate accessibility and maintenance The minimum recommended dimensions are shown in the illustrationMake sure there is a connection to the water drainage system close to the boiler to discharge any condensates

ImportantTo fit the boiler position the pallet with the package 25 m in front of the desired location for the installation This distance is required to allow the boiler to be removed from its pallet

Tab18Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 115

A (mm) 500 500 500B (mm) 1082 1304 1304

To allow the intake of combustion air sufficient ventilation must be provided in the boiler room the cross section and position of which must satisfy the regulations in force

Great Britain BS 5440 Part 1 and Part 2

For boilers with a nominal output of more than 70 kW Upper and lower air vents comshypulsory

BS 6644 and IGEMUP-10

Caution

Avoid any low points in the flue gas and condensate discharge circuit in order to prevent any accumulation of condensatesDo not block the air inlets in the room or the combustion product evacuation or condensation water flow pipes (even partially)

If the boiler is installed in closed premises respect the minimum dimensions given in the diagram below Also allow for openings to obviate the following hazards

Accumulation of gasOverheating of the premisesGreat Britain Minimum cross section of openings see BS 5440 Part 1 and Part 2 and BS 6644

523 Ventilation

To allow the intake of combustion air sufficient ventilation must be provided in the boiler room for which the cross section and position must satisfy the regulations in force in the country in which the boiler is installed

Great Britain BS 5440 Part 1 and Part 2

For boilers with a nominal output of more than 70 kW Upper and lower air vents comshypulsory

BS 6644 and IGEMUP-10

Fig9

MW-2000679-03

500

B

1100

AS1

S2

260

580

350

600

500

5 Installation

22 Gas 120 ACE 7717202 - v03 - 24062019

If the boiler is installed in closed premises respect the minimum dimensions given in the diagram below Also allow for openings to obviate the following hazards

Accumulation of gasOverheating of the premisesGreat Britain Minimum cross section of openings see BS 5440 Part 1 and Part 2 and BS 6644

524 Fitting the outdoor sensor

Plugs diameter 4 mmdrill diameter 6 mm

1 Choose a recommended location for the outdoor sensor2 Put the 2 plugs in place delivered with the sensor3 Secure the sensor using the screws provided (diameter 4 mm)4 Connect the cable to the outdoor temperature sensor

Recommended positions

Place the outside sensor in a position that covers the following characteristics

On a faccedilade of the area to be heated on the north if possibleHalf way up the wall of the area to be heatedUnder the influence of changes in the weatherProtected from direct sunlightEasy to access

Fig11

MW-8800N001-3

2

1

2

11

2

H

12 H (min 25 m)

12 H (min 25 m)

12 Z

H

Z

1 Optimum location2 Possible position

H Inhabited height controlled by the sensorZ Inhabited area controlled by the sensor

Positions to be avoided

Avoid placing the outside sensor in a position with the following characteristics

Masked by part of the building (balcony roof etc)Close to a disruptive heat source (sun chimney ventilation grid etc)

Fig10

MW-8800N003-6

23

4

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 23

Fig12

MW-3000014-2

53 Transport

Transport the boiler pallet with a manual or electric pallet truck

54 Unpacking and preparing the boiler

Caution

Wear gloves to handle the boilerTransport the boiler pallet with a manual or electric pallet truckUse carrying bars (not provided) to move the boiler

ImportantTo fit the boiler position the pallet with the package 25 m in front of the desired location for the installation This distance is required to allow the boiler to be removed from its pallet

1 Cut the packaging2 Remove the packaging from the boiler but leave the boiler on the

shipping pallet

ImportantThe documentation bag (user manual + accessories) is contained in the protective block

Fig13

MW-6000736-01

Manual

11

12

5 Installation

24 Gas 120 ACE 7717202 - v03 - 24062019

3 Using a long tool unlock and remove the boilers front door Disconnect the earth wire

4 Remove the mounting bolts from the unloading ramps and the boiler (4 bolts at the rear and 4 bolts at the front)

5 Pull out the unloading ramps and turn them over6 Align the ramps with the rear castor wheels on the boiler

Fig14

MW-6000761-01

3

3

Fig15

MW-6000737-01

4

4

Fig16

MW-6000738-01

5

5

6

6

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 25

7 Lock the ramps correctly onto the pallet8 Screw the unloading ramps onto the pallet9 Fold down the ends of the ramp so that they rest on the ground

10 Tilt the boiler backwards until it is resting on the castor wheels then remove it from the pallet

11 Recycle the pallet

Fig17

MW-6000770-01

9

9

8

7

Fig18

MW-6000739-02

600

350

11

10

550

5 Installation

26 Gas 120 ACE 7717202 - v03 - 24062019

12 Level the boiler using the adjustable feet(1) Factory setting 30 mm adjustment range 20 to 40 mm

CautionThe rear castor wheels must no longer be in contact with the ground

55 Hydraulic connections

551 Water treatment

In many cases the boiler and the heating system can be filled with mains water without treating the water

CautionDo not add any chemical products to the heating water without first consulting a water treatment specialist For example antifreeze water softeners products to increase or reduce the pH value chemical additives andor inhibitors These may cause faults in the boiler and damage the heat exchanger

Important

Flush the installation with at least 3 times the volume of water contained in the heating systemFlush the DHW circuit with at least 20 times its volume of water

The water in the installation must comply with following specifications

Tab19 Installation water specifications Initial commissioning Concentration (top up)Degree of acidity (untreated water) pH 65 - 85 65 - 85

Degree of acidity (treated washyter) pH 70 - 90 70 - 90

Conductivity at 25degC μScm le 500 le 500Chlorides mglitre le 50 le 50Other components mglitre lt 1 lt 1

Total water hardnessdegf 5 - 35 le 15degdH 28 - 200 le 85mmollitre(1) 05 - 35 lt 15

(1) Flow temperature less than 90degC mdash Maximum hardness 150 mmoll

Fig19

MW-6000773-01

(1)

12

12

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 27

ImportantIf water treatment proves necessary Remeha recommends the following manufacturers

CillitClimalifeFernoxPermoSentinel

552 Flushing new installations and installations less than 6 months old

Before filling the heating installation it is essential to remove any debris (copper caulking soldering flux) from the installation

1 Clean the installation with a powerful universal cleaner2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

553 Flushing an existing installation

Before filling the heating installation it is essential to remove any sludge deposits which have accumulated in the heating circuit over the years

1 Remove any sludge from the installation2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

554 Connecting the heating circuit

ImportantAbide by the information shown in the hydraulic diagrams

The pipes are not provided

Caution

The heating pipe must be mounted in accordance with the provisions applicableIf installing stop valves position the filldrain valve and the expansion vessel between the stop valves and the boilerAlways install a safety valve calibrated to a maximum of 4 bar on the heating circuit The safety valve can be connected to a venting pot The safety valve must not be used to drain the heating circuitIt is recommended to install a sludge collector on all installations

SeeIf fitting with a hydraulic kit (low-loss header or plate heat exchanger) refer to the kit manual

555 Connecting the condensate discharge pipe

Use a neutralisation station to achieve a pH value of more than 65 (in accordance with prevailing regulations)Discharge the condensates directly into the mains drainage system via a siphon In view of the acidity level (pH 25 to 3) only condensate discharge pipes made from compatible plastic should be used

5 Installation

28 Gas 120 ACE 7717202 - v03 - 24062019

The condensate discharge pipe is located at the rear of the boiler

Do not block the condensate discharge pipeTilt the discharge pipe by at least 30 mm per metre and make sure there are no low points that could cause the accumulation of water or deposits Maximum horizontal length 5 metresDo not drain condensation water into a roof gutterConnect the condensate discharge pipe in accordance with prevailing standardsIt is preferable to use the condensate neutralisers recommended by the manufacturer of the boiler

1 Connect a plastic hose to the condensate discharge outlet (DN 22)2 Insert the other end of the hose into a waste water discharge outlet

556 Filling the siphon

DangerIf operating with the siphon empty combustion products will escape into the premises in which the boiler is installed

1 Pour water into the flue gas pipe (central pipe) until it flows out of the condensate discharge pipe

56 Gas connection

Danger

Close the main gas valve before starting work on the gas pipesThe diameters of the pipes must be defined in accordance with the standards in force in your countryConnect the gas pipe in accordance with prevailing standards and regulationsEnsure that there is no dust in the gas pipe

The gas pipes are not providedIn old gas networks we recommend fitting a gas filter with a low pressure drop upstream of this point

1 Clean the gas supply pipe2 Remove the anti-dust plug located on the boilers gas inlet3 Mount a gas stop valve (not provided) on the boilers gas inlet4 Connect the gas inlet pipe to the gas stop valve

Fig20

MW-2000825-01

pH gt 65

Oslash32A

Fig21

MW-6000742-02

1

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 29

5 Close the gas supply valve before testing the pressure on the gas supply pipe to avoid damage caused by excessive pressure on the gas regulator Decompress before reopening the valve

561 Gas supply

Before mounting check that the gas meter has sufficient capacity (in m3h) To do this you should bear in mind the consumption of all appliances If the capacity of the gas meter is too low inform the gas supply companyThe boilers are preset to run on G20 gas (gas H) and can be adapted to run with the following gases

G31 (gas P)G3031 (gas BP)

ImportantTo use a different type of gas contact an approved assistance service

57 Air supplyflue gas outlet connections

571 Classification

The discharge and intake pipes must be certified for the appropriate configuration and must meet the requirements of the prevailing installation standards in the country

Tab20 Configurations and recommendations for the flue systemConfiguration Principle DescriptionB23B23P

AD-3001055-01

Connection to a chimney using a CE connection kit (single pipe in a flue comshybustion air taken from the boiler room)Follow the connection instructions and adhere to the recommended maximum pipe lengthsComply with the applicable regulations governing ventilation and cross-secshytions for room aeration vents

B33

MW-5000925-1

Room-ventilated version

Without down-draught diverterJoint flue gas discharge via the roof with guaranteed natural draft (at all times underpressure in the joint discharge duct)Flue gas discharge rinsed with air air from the installation area (special conshystruction)The IP rating of the boiler is lowered to IP20

C13C13X

AD-3001056-01

Airflue gas connection using concentric pipes to a horizontal terminal (so-called forced flue) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

5 Installation

30 Gas 120 ACE 7717202 - v03 - 24062019

Configuration Principle DescriptionC33C33X

AD-3001057-01

Airflue gas connection using concentric pipes to a vertical terminal (roof outshylet) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

C43C43X

MW-2000822-01

Airflue gas connection via concentric pipes to a common pipe supplying severshyal heating applicationsThe common pipe has a roof connection to a vertical terminal that draws in the air required for combustion and discharges the combustion productsUse of CE-certified system

C53

AD-3001058-02

Airflue gas connection via separate pipes lead to two separate terminals One draws in the air required for combustion and the other discharges the combusshytion productsThe outlets may be in different pressure zonesDo not install the air supply and discharge on opposing surfacesUse of CE-certified system

C63C63X

The installer is responsible for installing a CE-certified discharge system that complies with the manufacturers recommendations (temperature flow pressure etc)

The maximum pressure drop in the pipes ΔP must not exceed the values given in the table below The pipes must be certified for this type of use and for a temperature of more than 100 degC The terminal part of the flue gas pipe must be certified as complying with the EN 1856-1 StandardIf installing discharge and intake pipes not supplied by Remeha these must be certified for the intended type of use and their maximum pressure drop must be compliant

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 31

Configuration Principle DescriptionC83C83X

MW-2000823-01

Flue gas connection to a collective flue for sealed boilers The air supply is inshydividual via a terminal coming from outside the buildingA concentric pipe can be used to both supply the boiler with combustion air and connect to the collective flue gas discharge systemThe chimney or flue gas pipe must be suitable for such use and the system CE certified

C93C93X

AD-3001059-01

Airflue gas connection via concentric pipes in an existing chimney The air supshyply in the chimney may be installed via the existing channel or via tubing Flue gas discharge and air intake are via a vertical terminal at the top of the chimney

The air intake and discharge must be close enough to be in the same pressure zoneThe minimum cross-sections are shown in the table belowThe flue system must be suitable for the intended use and the system CE certishyfied

Tab21 Minimum dimensions of the duct or pipe C93 C93X

Version (D) Without air supply With air supplyRigid 80 mm Oslash 130 mm 130 x 130 mm Oslash 140 mm 130 x 130 mmRigid 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmRigid 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmFlexible 80 mm Oslash 130 mm 130 x 130 mm Oslash 145 mm 130 x 130 mmFlexible 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmFlexible 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmConcentric 80125 mm Oslash 145 mm 145 x 145 mm Oslash 145 mm 145 x 145 mmConcentric 100150 mm Oslash 170 mm 170 x 170 mm Oslash 170 mm 170 x 170 mmConcentric 150200 mm Oslash 270 mm 270 x 270 mm - -

ImportantThe duct must comply with the air density requirements of the local regulations

Important

Only original components are authorised for connection to the boiler and for the terminalThe clear section must comply with the standardThe chimney must be swept before installing the discharge flue

CautionEnsure that the flue gas discharge pipes are securely attached to the wall with suitable retaining flanges to prevent any damage and guarantee the tightness of every gasket in the circuit

CautionThe minimum gradient of the condensates discharge pipe from the boiler to the waste water discharge must be 1 cm per linear metre

Fig22 Minimum dimensions of the duct or pipe C93 C93X

AD-3000330-03

D

Oslash

D

5 Installation

32 Gas 120 ACE 7717202 - v03 - 24062019

572 Lengths of the airflue gas pipes

The maximum lengths (Lmax) given in the table are valid for pipes in which the horizontal sections do not exceed one metre in total For each additional metre of horizontal pipe a multiplication coefficient of 12 must be applied when calculating the total length L The total length L is calculated by adding the lengths of the straight airflue gas pipes and the equivalent lengths of the other componentsAlways ensure that L is less than Lmax

ImportantFor the list of flue gas system accessories and the equivalent lengths refer to the current price list

Tab22 Lengths of the airflue gas pipes in metresConfigurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 100 mm 26 24 19

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 110 mm 40 40 40

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 110 mm 295 24 175

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 80125 mm - - -

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 100150 mm 9 8 59

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 80125 mm - - -

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 100150 mm 115 10 94

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 80125 mm over 2x80 mm

- - -

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 100150 mm over 2x100 mm

23 175 Air 11Flue gases 5

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm110 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 110150 mm110 mm

16 132 10

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 33

Configurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 110150 mm110 mm

165 135 94

Tab23 PPS pipe reduction for each element used

Diameter 80 mmSingle

80125 mmConcentric

100 mmSingle

100150 mmConcentric

45deg elbow 12 m 10 m 11 m 10 m87deg elbow 19 m 15 m 20 m 37 mStraight inspection tube 03 m 06 m - 10 m87deg inspection elbow 19 m 20 m 48 m -Inspection T 42 m 27 m 56 m 25 mInspection tube for flexible pipe 03 m - 05 m -

573 Dimensions of flue gas outlet pipe

WarningThe pipes connected to the flue gas adapter must satisfy the following dimension requirements

d1 External dimensions of flue gas outlet pipe

Tab24 Dimensions of pipe d1 (min-max)80 mm 793 - 803 mm100 mm 993 - 1003 mm150 mm 149 - 151 mm

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipe

Tab25 Dimensions of pipe d1 (min-max) D1 (min-max)8080 mm 793 - 803 mm 793 - 803 mm100100 mm 993 - 1003 mm 993 - 1003 mm110110 mm 1093 - 1103 mm 1093 - 1103 mm150150 mm 149 - 151 mm 149 - 151 mm

Fig23 Dimensions of open connection

AD-3001094-01

oslashd1

Fig24 Dimensions of parallel connection

AD-3000963-01

oslashd1 oslashD1

5 Installation

34 Gas 120 ACE 7717202 - v03 - 24062019

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipeL1 Length difference between flue gas outlet pipe and air supply pipe

Tab26 Dimensions of pipe d1 (min-max) D1 (min-max) L1

(1) (min-max)80125 mm 793 - 803 mm 124 - 1255 mm 0 - 15 mm100150 mm 993 - 1003 mm 149 - 151 mm 0 - 15 mm

(1) Shorten the inner pipe if the length difference is too great

574 Connection to the flue gas pipe

At delivery the flue gas outletair supply is fixed inside the boiler

1 Using a long tool unlock and remove the boilers front door2 Remove the boiler outlet

3 Two options for connection to the flue gas pipe

Option Description3a Connection to a vertical flue gas pipe Position the flue gas

outletair supply directly at the boiler outlet3b Connection to a horizontal flue gas pipe Insert an outlet elshy

bow ( not supplied) before the flue gas outletair supply

ImportantLubricate the gaskets on the flue system during assembly

Fig25 Dimensions of concentric connection

AD-3000962-01

oslashd1

L1

oslashD1

Fig26

MW-2000867-02

1

2

1

Fig27

3a 3b

MW-2000868-01

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 35

Fastening the coaxial pipes Fasten the intake pipes with two galvanised Oslash 42 mm screws with a maximum length of 16 mm

CautionBefore fixing the screws make sure that at least 45 cm of pipe is inserted in the gasket of the other pipe

WarningGuarantee a minimum pipe slope towards the boiler of at least 5 cm per metre

Fig28 Fastening the coaxial pipes using screws

BO-0000030

16 mm

5 Installation

36 Gas 120 ACE 7717202 - v03 - 24062019

6 Operation

61 Settings

To configure the installation and use the boiler please refer to the control unit manual

6 Operation

7717202 - v03 - 24062019 Gas 120 ACE 37

7 Maintenance

71 General

We recommend having the boiler inspected and serviced at regular intervals

CautionDo not neglect to service the boiler Contact a qualified professional or take out a maintenance contract for the obligatory annual servicing of the boilerFailure to service the appliance voids the warranty

Danger of electric shockBefore service work is started the boiler has to be de-energised and secured from accidentally being switched back on

CautionHave an inspection carried out and the flues swept at least once a year or more depending on the regulations in force in your country

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

CautionAfter maintenance or repair work check the entire heating system to ensure that there are no leaks

CautionOnly genuine spare parts may be used

72 Specific maintenance operations

721 Cleaning the siphon

1 Remove the flue gas outlet discharge pipe

2 Remove the condensate discharge pipe 3 Remove the screw from the siphon

Fig29

1

MW-2000903-01

Fig30

2

3

MW-2000904-01

7 Maintenance

38 Gas 120 ACE 7717202 - v03 - 24062019

4 Pull the siphon downwards to disengage it and pivot it to release it

5 Flush the siphon 6 Drain the siphon

7 Fill the siphon with clean water up to the mark 8 Lubricate the siphon gasket9 Re-engage the siphon and refit the screw

10 Refit the two pipes

722 Checking the ionisation current

1 Check the ionisation current at full load and at low loadThe value is stable after 1 minute

2 Clean or replace the ionisationignition electrode if the value is lower than 4 microA

Fig31

4

90deg

MW-2000905-01

Fig32

MW-2000843-01

Fig33

MW-2000844-01

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 39

723 Replace the ionizationignition electrode

The ionizationignition electrode must be replaced if

The ionization current is lt 4 microAThe electrode is damaged or worn

1 Remove the plug of the electrode from the igniter

ImportantThe ignition cable is fixed to the electrode and therefore may not be removed

2 Remove the two screws3 Remove the entire component4 Fit the new ionizationignition electrode with a new seal5 Reassemble the unit in the reverse order to disassembly

724 Servicing the forced flue connection pipes

1 Open the inspection hatches or remove the pipes2 Check that the air supply and discharge pipes are not blocked

If necessary clean the discharge pipe3 Check the tightness of the flue gas system4 Replace the tightness gaskets and if necessary any sections of pipe

until tightness is perfect

725 Checking the burner and cleaning the heat exchanger

1 Remove the air inlet flue on the venturi2 Loosen the gland on the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

Fig34

AD-0000088-01

4

1

2

3

Fig35 Removing the fan

AD-3001178-01

1

3

4

2

5

7 Maintenance

40 Gas 120 ACE 7717202 - v03 - 24062019

6 Remove the front plate from the heat exchanger7 Carefully lift the front plate including the burner and fan away from

the heat exchanger

8 Use a vacuum cleaner fitted with a special endpiece (accessory) to clean the top part of the heat exchanger (combustion chamber)

9 Vacuum again without the top brush on the end piece10 Clean the lower section of the heat exchanger with the special

cleaning blade (accessory)11 Check (eg using a mirror) whether any visible contamination has

been left behind If it has remove it with the vacuum cleaner12 Check that the burner cover of the dismantled burner is free from

cracks andor damage If not replace the burnerServicing the burner is usually not necessary it is self-cleaning Use compressed air to carefully blow away any dust

13 Reassemble the unit in reverse order

CautionRemember to reconnect the fan plugCheck that the gasket is correctly positioned between the mixing elbow and the heat exchanger (the gasket must lie absolutely flat in the appropriate groove to ensure that no gas can leak)Tighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the front plate nuts with a torque wrench to the firmness of 10 Nm

14 Open the gas supply and switch the power supply to the boiler back on

Fig36 Removing the front plate fan and burner

AD-3001179-01

6

7

Fig37 Cleaning the heat exchanger

AD-3001180-01

10

8 9

12

11

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 41

726 Checking the non-return valve

1 Remove the air inlet pipe from the venturi2 Unscrew the gland of the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

6 Dismantle the fan7 Remove the fan together with the gas valve unit8 Inspect the non-return valve and replace it in the event of a defect or

damage or if the maintenance kit contains a non-return valve9 Reassemble in the reverse order

CautionRemember to reconnect the fan plugTighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the two fan nuts with a torque wrench to the firmness of 38 Nm

Fig38 Disconnecting the fan

AD-3001178-01

1

3

4

2

5

Fig39 Checking the non-return valve

AD-3001181-01

2x

68

7

9

7 Maintenance

42 Gas 120 ACE 7717202 - v03 - 24062019

8 Decommissioning

81 Decommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

To switch off the boiler temporarily or permanently proceed as follows

1 Switch the boiler off2 Cut the electrical power to the boiler3 Close the gas valve on the boiler4 Drain the central heating system or ensure frost protection5 Close the door of the boiler to prevent air circulating inside it6 Remove the pipe connecting the boiler to the chimney and close the

nozzle with a plug

82 Recommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

Should it prove necessary to carry out the recommissioning of the boiler proceed as follows

1 Re-establish electrical power to the boiler2 Fit and check the flue gas pipe3 Fill the siphon with water4 Fill the central heating system5 Open the boiler gas valve6 Start up the boiler

8 Decommissioning

7717202 - v03 - 24062019 Gas 120 ACE 43

9 Disposal and recyclingCautionOnly qualified professionals are permitted to remove and dispose of the boiler in accordance with local and national regulations

If you need to remove the boiler proceed as follows

1 Switch off the boiler2 Cut the power supply to the boiler3 Close the main gas valve4 Close the water mains5 Close the gas valve on the boiler6 Drain the installation7 Remove the airflue gas pipes8 Disconnect all pipes9 Dismantle the boiler

Fig40

MW-3000179-03

9 Disposal and recycling

44 Gas 120 ACE 7717202 - v03 - 24062019

10 Environmental

101 Energy savings

Energy-saving advice

Do not block ventilation outletsDo not cover the radiators Do not hang curtains in front of the radiatorsInstall reflective panels behind the radiators to prevent heat lossesInsulate the pipes in rooms that are not heated (cellars and lofts)Close the radiators in rooms not in useDo not run hot (or cold) water pointlesslyInstall an energy-saving shower head which can save up to 40 energyTake showers rather than baths A bath consumes twice as much water and energy

102 Room thermostat and settings

Various models of room thermostat are available The type of thermostat used and the parameter selected impact total energy consumption

A modulating regulator which may be combined with thermostatic valves is eco-friendly in terms of energy and offers an excellent level of comfort This combination allows you to set the temperature separately for each room However do not install thermostatic radiator valves in the room in which the room thermostat is locatedComplete opening and closing of the thermostatic radiator valves causes undesirable variations in temperature Therefore these must be openedclosed progressivelySet the room thermostat to a temperature of approximately 20degC to reduce heating costs and energy consumptionLower the thermostat setting to approximately 16degC at night or when you are not at home This reduces heating costs and energy consumptionLower the thermostat setting well before airing the roomsSet the water temperature to a lower level in summer than in winter (eg 60degC and 80degC respectively) when an ONOFF thermostatis usedWhen clock thermostats and programmable thermostats are to be set do not forget to take any holidays and days when no one is at home into account

10 Environmental

7717202 - v03 - 24062019 Gas 120 ACE 45

11 Warranty

111 General

We would like to thank you for buying one of our appliances and for your trust in our productIn order to ensure continued safe and efficient operation we recommend that the product is regularly inspected and maintainedYour installer and our service department can assist with this

112 Terms of warranty

The following provisions do not affect the application in favour of the buyer of the legal provisions with regard to hidden defects that are applicable in the buyers countryThis appliance comes with a warranty that covers all manufacturing faults the warranty period will commence on the date of purchase stated on the installers invoiceThe warranty period is stated in our price listAs a manufacturer we can by no means be held liable if the appliance is used incorrectly is poorly maintained or not maintained at all or is not installed correctly (it is your responsibility to ensure that installation is carried out by a qualified installer)In particular we cannot be held liable for material damage intangible losses or physical injury resulting from an installation that does not comply with

Legal or regulatory requirements or provisions laid down by the local authoritiesNational or local regulations and special provisions relating to the installationOur manuals and installation instructions in particular in terms of regular maintenance of the appliances

Our warranty is limited to the replacement or repair of the parts found to be defective by our technical services team excluding labour transfer and transport costsOur warranty does not cover replacement or repair costs for parts that may become defective due to normal wear incorrect usage the intervention of unqualified third parties inadequate or insufficient supervision or maintenance a mains supply that is not appropriate or the use of unsuitable or poor quality fuelSmaller parts such as motors pumps electrical valves etc are guaranteed only if these parts have never been dismantledThe rights established in European Directive 9944EEC implemented by legal decree No 24 of 2 February 2002 and published in Official Journal No 57 of 8 March 2002 remain in force

11 Warranty

46 Gas 120 ACE 7717202 - v03 - 24062019

12 Spare parts

121 General

If inspection or maintenance work bring to light the need to replace a component in the boilerProvide the reference number given in the spare parts list when ordering a spare part

CautionOnly genuine spare parts may be used

122 Spare parts lists

1221 Exchanger

Fig41

MW-6000743-01

811x

7

7

4

2

16

3

10

119

65

1

13

12

18

14

19

15

18

17

Tab27

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

1 7699615 Complete exchanger x 1 7699614 Complete exchanger x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 47

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

2 S101564 Exchanger front plate x x x3 S54731 Exchanger inspection hatch insulation x x x4 S57241 Exchanger inspection hatch gasket x x x5 S100052 M4x10 self-locking screw (x20) x x x6 S54754 FURQ65 burner x 6 S57477 FURQ85 burner x x7 7623837 Set of 10 k NTC sensors x x x8 S54755 M6 nut (x20) x x x9 7659755 M4x10 screw (x10) x x x10 S53489 Electrode gasket (x10) x x x11 7692359 Ignition electrode x x x12 7631936 Flue gas flow pipe diameter 100 mm x x x13 7624643 NTC 2x20 k flue gas sensor with gasket x x x14 7624619 Ignition transformer x x x15 S56987 ZP M6x16 screw (x10) x x x16 7616253 Valve with support x x x17 7680596 Exchanger bracket x 17 7673616 Exchanger bracket x x18 7701752 Gasket diameter 100 mm (x5) x x x19 7632708 Earth electric clip (x2) x x x

1222 Gas circuit

Fig42

MW-6000744-01

3

2

5

6

9

4

8

10

7

12

11

1

14

13

13

12 Spare parts

48 Gas 120 ACE 7717202 - v03 - 24062019

Tab28Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 S101543 Silencer x 1 S101520 Silencer x 1 S101578 Silencer x2 S54777 Venturi gasket (x5) x 2 S59215 Gas valve-venturi gasket (x5) x 2 S101593 Gaskets (kit) x3 S101726 Fan RG 1481200-3633 x x 3 S100036 Fan RG 148 1200-3633-010202 x4 S101596 Gas valve VK4115v1386 x 4 S101597 Gas valve VK4115vb1012 x 4 S101510 Gas valve GB-ND 057 XP x5 S54766 Venturi x 5 S57488 Venturi x 5 S101595 Venturi VMS 45900450-010 x6 S59215 Gas valve-venturi gasket (x5) x x 7 S57827 Gas valve unit flange x8 S57828 268x22x25 O-ring (x5) x9 S101631 Diaphragm x10 7616249 Flue gas sensor cap (5x) x x x11 S56155 238x177x2 gasket (x20) x x x12 95760050 C HC M4-12 88 ZN3 screw x x x13 S48512 M5-10 screw (x10) x x x14 S101590 Silencer retaining clip x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 49

1223 Hydraulic circuit

Fig43

MW-6000745-01

1

14

6

9

11

8

12

5

37

9

10

2

4

13

Tab29Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7680598 Complete flow pipe x 1 7670807 Complete flow pipe x x2 7672557 Complete return pipe x x x3 7674076 Complete gas pipe x 3 7680434 Complete gas pipe x 3 7670720 Complete gas pipe x4 7698560 HUBA G38 pressure gauge x x x5 94994712 PVC pipe diameter 16x12 x x x6 7699357 Water deflector diameter 100 mm x x x7 94902073 Drain valve 12 x x x8 94918138 Air vent x x x9 95013064 44x32x2 mm green gasket x x x10 95013060 24x17x2 mm green gasket x x 10 95013062 30x21x12 mm green gasket x11 7692329 Condensate hose x x x13 7706103 Assembled siphon height 160 mm x 13 7706038 Assembled siphon height 250 mm x x14 7103731 Condensate drain pan gasket x x x

12 Spare parts

50 Gas 120 ACE 7717202 - v03 - 24062019

1224 Boiler body

Fig44

MW-6000746-01

2

2

1

6

3

34

5

4

Tab30Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7686377 Assembled frame x 1 7686139 Assembled frame x x2 7679958 117x34 handle diameter 65 mm x x x3 7676037 Wheel x x x4 7688301 Frame lateral gasket x 4 7688008 Frame lateral gasket x x5 7688353 Front panel gasket x 5 7688007 Front panel gasket x x6 7693874 R4-05 front panel lock x x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 51

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

E toimistoestsystemsfi

Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 10: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

2 Symbols used

21 Symbols used in the manual

This manual uses various danger levels to draw attention to special instructions We do this to improve user safety to prevent problems and to guarantee correct operation of the appliance

DangerRisk of dangerous situations that may result in serious personal injury

Danger of electric shockRisk of electric shock

WarningRisk of dangerous situations that may result in minor personal injury

CautionRisk of material damage

ImportantPlease note important information

SeeReference to other manuals or pages in this manual

22 Symbols used on the appliance

1 Alternating current2 Protective earthing3 Before installing and commissioning the appliance carefully read

the instruction manuals provided4 Dispose of used products through an appropriate recovery and

recycling structure5 Caution danger of electric shock live parts Disconnect the mains

power prior to carrying out any work

Fig1

1 2

MW-2000068-1

1

2

3

4

5

2 Symbols used

10 Gas 120 ACE 7717202 - v03 - 24062019

3 Technical specifications

31 Homologations

311 Directives

This product has been manufactured and put into circulation in accordance with the requirements and standards of the following European Directives

Gas Appliances Regulation (EU) (2016426)

Pressure Equipment Directive 201468EU

Electromagnetic Compatibility Directive (201430EU)

Low Voltage Directive (201435EU)

Efficiency Directive (9242EEC)

European Ecodesign Directive (2009125EC)EU Regulation (8132013)

Energy Labelling Framework Regulation (EU) (20171369)EU Regulation (8112013)

BS 7074 Part 1 Application selection and installation of expansion vessels and ancillary equipment for sealed water systemsBS 6644 Specification for the installation of gas-fired condensing boilers with a nominal output exceeding 70 kWBS EN 12828 Design for water-based heating systemsBS EN 13831 Closed expansion vessels

Apart from the legal provisions and Directives the additional Directives described in these instructions must also be observedFor all provisions and Directives referred to in these instructions it is agreed that all addenda or subsequent provisions will apply at the time of installation

312 EC Declaration of Conformity

The unit complies with the standard type described in the EC declaration of conformity It has been manufactured and commissioned in accordance with European directivesThe original declaration of conformity is available from the manufacturer

313 Gas categories

Tab1 Czech Republic Spain Greece Portugal Switzerland UK

Category Gas type Connection pressure (mbar) Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

II2H3BP G20 (H gas) 20 X X X G30G31 (butanepropane) 303750 X X X

314 Certifications

Tab2 CertificationsCE number 0085CT0009NOx class 6 (EN 15502-1)

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 11

Type of flue gas connection Chimney

B23B23PB33

Forced flue

C13C13XC33C33XC43C43XC53C63C63XC83C83XC93C93X

315 Factory test

Before leaving the factory each boiler is optimally set and tested for

Electrical safetySettings (CO2)Water tightnessGas tightnessParameter setting

32 Technical data

Tab3 GeneralGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Nominal heat output (Pn)Central heating operation (80 degC60 degC)

minndashmax kW 120 - 615 141 - 842 189 - 1039

Nominal heat output (Pn)Central heating operation (50 degC30 degC)

minndashmax kW 135 - 650 158 - 895 212 - 1097

Nominal input power (Qn)Heating mode (Hi)

minndashmax kW 122 - 620 146 - 860 196 - 1070

Nominal input power (Qn)Heating operation (Hi) G31 (propane)

minndashmax kW 122 - 620 221 - 860 212 - 1070

Nominal input power (Qn)Central heating operation (Hs)

minndashmax kW 137 - 689 162 - 955 217 - 1189

Full load heating mode efficiency (Hi) (8060 degC) (9242EEC)

992 979 971

Full load heating mode efficiency (Hi) (50 degC30 degC)

1046 1041 1025

Part load heating mode efficiency (9242EEC) (return temperature 30 degC)

1104 1081 108

Tab4 Gas and flue gas valuesGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115G20 gas consumption (H gas)(1) minndashmax m3h 13 - 66 15 - 91 20 - 117Gas consumption G31 (propane)(1)

minndashmax m3h 05 - 25 09 - 35 09 - 45

3 Technical specifications

12 Gas 120 ACE 7717202 - v03 - 24062019

Gas 120 ACE Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

Gas resistance G20 (H gas)(2) max mbar 20 25 30BREAM NOx mgkWh 32 29 35Flue gas quantity minndashmax m3h 18 - 90 22 - 125 30 - 160Flue gas temperature minndashmax degC 30 - 120 30 - 120 30 - 120Maximum counter pressure (Pn) Pa 100 160 220

(1) Gas consumption based on lower heating value in standardised conditions T=28815 K p=101325 mbar Gag 3033 G25 2925 G31 8800 MJm3

(2) Gas resistance between boiler connection and measurement point on the gas valve unit

Tab5Gas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Gas inlet pressure G20 (H gas) minndashmax mbar 17 - 25 17 - 25 17 - 25G30G31 gas inlet pressure (ButanePropane) minndashmax mbar 37 - 50 37 - 50 37 - 50G31 gas inlet pressure (Propane) minndashmax mbar 37 - 50 37 - 50 37 - 50

Tab6 Central heating circuit dataGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Water content l 71 101 101Water operating pressure min bar 08 08 08Water operating pressure (MOP) max bar 40 40 40Water temperature max degC 110 110 110Operating temperature max degC 90 90 90Pressure drop secondary circuit (ΔT = 20 K) mWC 17 16 26Maximum permitted temperature difference(1) max degC 40(1) 40(1) 35(1)

(1) with a maximum flow temperature of 80 degC

Tab7 Electrical dataGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Supply voltage (AC) V 230 230 230Power consumption ndash full load max W 92 124 180Power consumption - low load max W 25 24 344Power consumption ndash standby max W 6 5 9Electrical protection rating IP X1B X1B X1BFuses Main A 10 10 10

Tab8 Other dataGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Total weight (empty) kg 98 109 109Average acoustic level at a distance of one meshytre from the boiler

dB(A) 40 45 45

SeeThe back cover for contact details

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 13

321 ErP technical parameters

Tab9 Technical parameters for boiler space heatersProduct name Gas 120 ACE

- 65Gas 120 ACE - 90

Gas 120 ACE - 115

Condensing boiler Yes Yes YesLow-temperature boiler(1) No No NoB1 boiler No No NoCogeneration space heater No No NoCombination heater No No NoRated heat output Prated kW 62 84 104

Useful heat output at rated heat output and high temperature regime(2)

P4 kW 615 842 1039

Useful heat output at 30 of rated heat output and low temperature regime(1)

P1 kW 205 279 347

Seasonal space heating energy efficiency ƞs 94 - -Useful efficiency at rated heat output and high temperature regime(2)

ƞ4 894 882 875

Useful efficiency at 30 of rated heat output and low temperature regime(1)

ƞ1 995 974 973

Auxiliary electricity consumption Full load elmax kW 0092 0124 0180Part load elmin kW 0025 0024 0034Stand-by PSB kW 0006 0005 0009

Other specifications Standby heat loss Pstby kW 0114 0119 0119Ignition burner power consumption Pign kW - - -Annual energy consumption QHE GJ 190 - -Sound power level indoors LWA dB 55 61 60Emissions of nitrogen oxides NOx mgkWh 29 41 41(1) Low temperature means for condensing boilers 30degC for low temperature boilers 37degC and for other heaters 50degC return temperature

(at heater inlet)(2) High temperature regime means 60 degC return temperature at heater inlet and 80 degC feed temperature at heater outlet

SeeThe back cover for contact details

322 Circulating pump (not provided)

The boiler is supplied without a circulating pump Take the boiler pressure drop and system pressure drop into account when selecting a pump

CautionThe maximum output of a pump that can be connected is 200 W Above this use an auxiliary relay adapted to the pump output

If possible install the pump in direct connection to the boiler on the return circuit

For more information see

Circulating pump

The maximum difference in temperature between the flow water and the return water and the speed at which the boiler temperature increases are restricted by the boilers control system

3 Technical specifications

14 Gas 120 ACE 7717202 - v03 - 24062019

Tab10 Minimum flow to be guaranteedMinimum flow to be guaranteed in the boiler Unit Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Minimum flow rate litreshour 290 340 455

A Dynamic head in mWcB Water flow rate (m3h)C Pressure drops

ΔT Maximum temperature difference between the flow water and the return water in the boiler

A Dynamic head in mWcB Water flow rate (m3h)C Pressure drops

ΔT Maximum temperature difference between the flow water and the return water in the boiler

A Dynamic head in mWcB Water flow rate (m3h)C Pressure drops

ΔT Maximum temperature difference between the flow water and the return water in the boiler

323 Sensor specifications

Outside temperature sensor specifications

Tab11 Outside temperature sensorTemperature degC -20 -16 -12 -8 -4 0 4 8 12 16 20 24Resistance Ω

(Ohm)2392 2088 1811 1562 1342 1149 984 842 720 616 528 454

Fig2 Pressure drops for Gas 120 ACE - 65

MW-2000671-3

T=20KT=40K

175

Fig3 Pressure drops for Gas 120 ACE - 90

MW-2000673-3

T=20KT=40K

362

Fig4 Pressure drops for Gas 120 ACE - 115

MW-2000674-3

T=20KT=35K

447

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 15

Boiler sensor return sensor

Tab12 Boiler sensor return sensorTemperature in degC

-20 -10 0 10 20 25 30 40 50 60 70 80 90 100 110

Resistance in Ω

98932 58879 36129 22804 14773 10000 9804 6652 4607 3252 2337 1707 1266 952 726

Circuit flow sensor domestic hot water sensor and system sensor

Tab13 Circuit flow sensor domestic hot water sensor and system sensorTemperature in degC 0 10 20 25 30 40 50 60 70 80 90Resistance in Ω 32014 19691 12474 10000 8080 5372 3661 2535 1794 1290 941

Specifications of the boiler flue gas sensor

Tab14 Boiler flue gas sensorTemperature degC 0 10 20 30 40 50 60 70 80 90 100Resistance Ohm 66000 40000 20000 16100 10600 7160 4940 3480 2490 1810 1340

33 Dimensions and connections

Fig5

MW-2000684-03

A

D

E

FG

BC

600 605150

92

132

240

141

418

5

2

34

107

105

95

100

1

255145

1 Heating circuit flow (R114)2 Gas inlet (G34)3 Heating circuit return (R114)

4 Condensate discharge (DN22)5 Flue gas pipe

Tab15 Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 1155 Diameter 100150 mm Diameter 100150 mm Diameter 100150 mmA (mm) 1340 1562 1562B (mm) 1164 1386 1386C (mm) 1082 1304 1304D (mm) 971 1193 1193

3 Technical specifications

16 Gas 120 ACE 7717202 - v03 - 24062019

Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 115E (mm) 410 632 632F (mm) 87 303 303G (mm) 128 350 350

34 Electrical diagram

341 Electrical diagram of boiler

Fig6

CU-GH-08

X3X4X5

X6

X8

1

2

3

1

2

3

X14

X7

X10

X11

X13

X12

1

2

3

4

5

25 A

Nrsquo

1

2

3

4

YE

GY

BR

GR

1

2

3

4

1

2

3

4

1

2

N L

1

2

1

2

OPTION

PRESSURE

SWITCH

MW-2000850-04

230V

1 2 3 4 5 6 7 8 9 10

24V

12 11

BL OR

10 9 8 7 6

GR BK RE YE BL

5 4 3 2 1

OR BK RE YE BL

Lrsquo

BL

GY

GY

GY

BL BR

GY

BL

BR

GY BL

BR

GY

BR

GR BK RE YE BL OR BK RE YE BL

BK

BL

BR

RE

GR

GR

BK

GR

GY

YE

BR

BL

OR

1

2

3

4

5

1

2

3

RE

BK

GR

BR

BK

BL

GR

1

2

BR

GR

GY

RE BL

BL

BK

BK

BR YE

GR PI

BL

BL

GR

PI

GR

RE

BR

YE

BK

BK

BR

GY

BL

BL

BR

GY

GY

BR

BL BL GY

BR

BL

BR

BK

GYWH

GY

BL

GY

BL

BR

BK

WH

BL

GY

1 12

4

5

2

3

6

7

8

9

10

11

16

17

15

14

13

1 230 V connector connection with control unit2 Mains interference filter3 Earthing of boiler front door4 Return sensor (TR)5 Flow sensor (FTS)6 Flue gas sensor7 Flue gas pressure switch (specific option for the

Netherlands)8 Gas valve unit (GB)9 Igniter (IT)

10 Ionizationignition electrode (E)11 Fan supply12 24 V connector connection with control unit13 Storage information (CSU)14 Pressure sensor (PS)15 Fan control (PWM)16 Light17 Control unit (CU-GH08)BK BlackBL Blue

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 17

BR BrownGY GreenYellowYE YellowOR OrangeGR Green

PI PinkGY GreyRD RedWH White

3 Technical specifications

18 Gas 120 ACE 7717202 - v03 - 24062019

4 Description of the product

41 General description

Gas 120 ACE floor-standing condensing gas boilers have the following characteristics

Low polluting emissionsHigh-efficiency heatingElectronic control panelFlue gas discharge by a forced flue or chimney type connection with bi-flow option

The boilers are perfectly suited to cascade installation

42 Operating principle

421 Gasair setting

The casing fitted to the boiler is also used as an air box Air is drawn in by the fan and gas injected into the Venturi by the fan intake The fan speed is modulated according to the settings the heat demand and the actual temperatures measured by the temperature sensors The gas and air are mixed in the Venturi The gasair ratio command function accurately adjusts the quantities of gas and air required This provides optimum combustion over the entire output range The gasair mixture is sent to the burner located upstream of the heat exchanger

422 Settings and safety devices

ImportantThe settings and safety devices are only operational if the boiler is powered up

Tab16 Description of the safety devicesDevice DescriptionNTC flue gas sensor The control panel blocks the gas supply to the burner in the event of overheatingFlame detector by ionisation The boiler is put into safety lock-down in the event of gas shortage or incomplete cross-

lighting on the burnerHydraulic pressure switch When the pressure switch detects a pressure lower than 08 bar (008 MPa) a warning

message is displayed without stopping the circulating pumpPost-circulating pump After the burner stops depending on the room thermostat setting and if in heating

mode the circulating pump runs for a further 3 minutesFrost protection device When the flow temperature is lower than 5 degC the burner starts up and runs until the

flow temperature reaches 15 degC This device runs under the following conditions

The boiler is switched onThe gas supply is workingThe pressure in the system is higher than 05 bar (005 MPa)

Anti-blocking of the pump If there are no heating or domestic hot water requirements for 24 consecutive hours the pumps start up automatically and run for 10 seconds

Anticipatory start-up of the circulatshying pumps

In heating mode only the appliance can start up the circulating pumps before burner igshynition The duration and activation of anticipatory start-up depends on the installation reshyquirements and the operating temperatures The duration of anticipatory start-up of the circulating pumps therefore varies from a few seconds to several minutes

4 Description of the product

7717202 - v03 - 24062019 Gas 120 ACE 19

43 Main boiler components

1 Control unit2 Flow sensor3 Light4 Ignitionionization electrode5 Non-return valve6 Gas valve7 Heat exchanger (heating circuit)8 Return sensor9 Pressure gauge sensor

10 CU-GH-08 PCB housing11 Siphon12 Flue gas circuit13 Intake silencer14 Venturi15 Flue gas sensor16 Fan17 Automatic air vent18 Flue gas measuring point19 Combustion air measuring point20 Flue gas outletair supply

44 PCBs

441 Description of the CU-GH-08 PCB

This PCB controls the core boiler components sensors actuators and gas valveThis PCB is factory-fitted and fully cabled and does not require any operationThe sensors valves circulating pumps etc are connected at the control unit

45 Standard delivery

The Gas 120 ACE boiler comes in 2 packages including

Tab17 Package contentsPackage ContentPackage 1 A floor-standing gas boiler

A flue system outlet with a measuring point (stored in the boiler)An outdoor temperature sensorA data plateAn installation and service manual

Package 2 A control unitTwo control unit mounting bolts on the boilerA user manual

46 Accessories amp options

A detailed list of accessories and options can be found in our catalogue

Fig7

MW-2000670-02

16

7 13

12

11

10

19

18

20

17

14

15

6

5

2

9

4

3

1

8

4 Description of the product

20 Gas 120 ACE 7717202 - v03 - 24062019

5 Installation

51 Installation regulations

CautionInstallation of the boiler must be done by a qualified professional in accordance with prevailing local and national regulations

CautionA disconnection device must be fitted to the permanent pipes in accordance with the installation rules

CautionRespect the maximum water inlet pressure to ensure correct operation of the appliance referring to the Technical Specifications chapter

52 Choice of the location

Decide on the ideal position for installation bearing in mind any legal directives and the space required by the appliance

Install the boiler on a solid stable structure capable of bearing the weight of the appliance when full of water and fully equippedWhen choosing the position for installation of the boiler bear in mind the positions authorised for the combustion gas discharge outlets and the air intake ventDo not install the boiler near any heat sources

521 Data plate

The data plate is located on the back of the boilerThe data plate provides important information regarding the appliance

Serial numberModelGas categoryCN1CN2etc

Once installation is complete the second data plate supplied in the documentation bag can be affixed to a more visible part of the boilerIf the boiler is equipped with a hydraulic kit (low-loss header or plate heat exchanger) affix the data plate to the side of the boiler

522 Space required - Boiler ventilation

Decide on the ideal position for installation bearing in mind any legal directives and the space required by the appliance

Install the boiler on a solid stable structure capable of bearing the weight of the appliance when full of water and fully equippedWhen choosing the position for installation of the boiler bear in mind the positions authorised for the combustion gas discharge outlets and the air intake ventDo not install the boiler near any heat sources

Fig8

MW-6000735-01

Made in France0085

CN1 17

CN2 7

230 V 50 Hz

B23(P) - B33 - C13(X) - C33(X) - C43(X) - C53 - C63(X) - C83(X) - C93(X)

PMS= 4bar - 04MPa

Pn =

8060 degC

5030 degC

NOx class 6 (Nox lt 56 mgkWh)

Qn =Hi kW

4030 degC

189-1039

196-1070

212-1097

180W

0085CT009

Hs (G20) 217-1189

IP21Imax= 10A

Tmax= 90degC

FR

LT

IT

AT

CZ

PL

II2Esi3BP

II2H3BP

II2H3BP

II2H3BP

II2H3P

II2H3BP

II2H3BP

II2ELw3BP

G20-20mbar G25-25mbar G30G31-303750mbar

G20-20mbar G30G31 - 30mbar

G20-20mbar G30G31 - 303750 mbar

G20-20mbar G30G31 - 3037mbar

G20-20mbar G31 - 30mbar

G20-20mbar G30G31 - 50mbar

G20-20mbar G30G31-303750mbar

G20-20mbar G27-20mbar G3031-37mbar

kW

Art Nr SN A0000YYWW000

kW

kW

kW

kW

kW

ESGR PT

LU RO EE

YY-WW

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 21

Keep the boiler accessible at all timesPlace the boiler on a base to make it easier to clean the roomThe boiler can be located along a partition on one of its sides provided there is a 500 mm space on the opposite sideAllow enough space around the boiler to facilitate accessibility and maintenance The minimum recommended dimensions are shown in the illustrationMake sure there is a connection to the water drainage system close to the boiler to discharge any condensates

ImportantTo fit the boiler position the pallet with the package 25 m in front of the desired location for the installation This distance is required to allow the boiler to be removed from its pallet

Tab18Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 115

A (mm) 500 500 500B (mm) 1082 1304 1304

To allow the intake of combustion air sufficient ventilation must be provided in the boiler room the cross section and position of which must satisfy the regulations in force

Great Britain BS 5440 Part 1 and Part 2

For boilers with a nominal output of more than 70 kW Upper and lower air vents comshypulsory

BS 6644 and IGEMUP-10

Caution

Avoid any low points in the flue gas and condensate discharge circuit in order to prevent any accumulation of condensatesDo not block the air inlets in the room or the combustion product evacuation or condensation water flow pipes (even partially)

If the boiler is installed in closed premises respect the minimum dimensions given in the diagram below Also allow for openings to obviate the following hazards

Accumulation of gasOverheating of the premisesGreat Britain Minimum cross section of openings see BS 5440 Part 1 and Part 2 and BS 6644

523 Ventilation

To allow the intake of combustion air sufficient ventilation must be provided in the boiler room for which the cross section and position must satisfy the regulations in force in the country in which the boiler is installed

Great Britain BS 5440 Part 1 and Part 2

For boilers with a nominal output of more than 70 kW Upper and lower air vents comshypulsory

BS 6644 and IGEMUP-10

Fig9

MW-2000679-03

500

B

1100

AS1

S2

260

580

350

600

500

5 Installation

22 Gas 120 ACE 7717202 - v03 - 24062019

If the boiler is installed in closed premises respect the minimum dimensions given in the diagram below Also allow for openings to obviate the following hazards

Accumulation of gasOverheating of the premisesGreat Britain Minimum cross section of openings see BS 5440 Part 1 and Part 2 and BS 6644

524 Fitting the outdoor sensor

Plugs diameter 4 mmdrill diameter 6 mm

1 Choose a recommended location for the outdoor sensor2 Put the 2 plugs in place delivered with the sensor3 Secure the sensor using the screws provided (diameter 4 mm)4 Connect the cable to the outdoor temperature sensor

Recommended positions

Place the outside sensor in a position that covers the following characteristics

On a faccedilade of the area to be heated on the north if possibleHalf way up the wall of the area to be heatedUnder the influence of changes in the weatherProtected from direct sunlightEasy to access

Fig11

MW-8800N001-3

2

1

2

11

2

H

12 H (min 25 m)

12 H (min 25 m)

12 Z

H

Z

1 Optimum location2 Possible position

H Inhabited height controlled by the sensorZ Inhabited area controlled by the sensor

Positions to be avoided

Avoid placing the outside sensor in a position with the following characteristics

Masked by part of the building (balcony roof etc)Close to a disruptive heat source (sun chimney ventilation grid etc)

Fig10

MW-8800N003-6

23

4

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 23

Fig12

MW-3000014-2

53 Transport

Transport the boiler pallet with a manual or electric pallet truck

54 Unpacking and preparing the boiler

Caution

Wear gloves to handle the boilerTransport the boiler pallet with a manual or electric pallet truckUse carrying bars (not provided) to move the boiler

ImportantTo fit the boiler position the pallet with the package 25 m in front of the desired location for the installation This distance is required to allow the boiler to be removed from its pallet

1 Cut the packaging2 Remove the packaging from the boiler but leave the boiler on the

shipping pallet

ImportantThe documentation bag (user manual + accessories) is contained in the protective block

Fig13

MW-6000736-01

Manual

11

12

5 Installation

24 Gas 120 ACE 7717202 - v03 - 24062019

3 Using a long tool unlock and remove the boilers front door Disconnect the earth wire

4 Remove the mounting bolts from the unloading ramps and the boiler (4 bolts at the rear and 4 bolts at the front)

5 Pull out the unloading ramps and turn them over6 Align the ramps with the rear castor wheels on the boiler

Fig14

MW-6000761-01

3

3

Fig15

MW-6000737-01

4

4

Fig16

MW-6000738-01

5

5

6

6

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 25

7 Lock the ramps correctly onto the pallet8 Screw the unloading ramps onto the pallet9 Fold down the ends of the ramp so that they rest on the ground

10 Tilt the boiler backwards until it is resting on the castor wheels then remove it from the pallet

11 Recycle the pallet

Fig17

MW-6000770-01

9

9

8

7

Fig18

MW-6000739-02

600

350

11

10

550

5 Installation

26 Gas 120 ACE 7717202 - v03 - 24062019

12 Level the boiler using the adjustable feet(1) Factory setting 30 mm adjustment range 20 to 40 mm

CautionThe rear castor wheels must no longer be in contact with the ground

55 Hydraulic connections

551 Water treatment

In many cases the boiler and the heating system can be filled with mains water without treating the water

CautionDo not add any chemical products to the heating water without first consulting a water treatment specialist For example antifreeze water softeners products to increase or reduce the pH value chemical additives andor inhibitors These may cause faults in the boiler and damage the heat exchanger

Important

Flush the installation with at least 3 times the volume of water contained in the heating systemFlush the DHW circuit with at least 20 times its volume of water

The water in the installation must comply with following specifications

Tab19 Installation water specifications Initial commissioning Concentration (top up)Degree of acidity (untreated water) pH 65 - 85 65 - 85

Degree of acidity (treated washyter) pH 70 - 90 70 - 90

Conductivity at 25degC μScm le 500 le 500Chlorides mglitre le 50 le 50Other components mglitre lt 1 lt 1

Total water hardnessdegf 5 - 35 le 15degdH 28 - 200 le 85mmollitre(1) 05 - 35 lt 15

(1) Flow temperature less than 90degC mdash Maximum hardness 150 mmoll

Fig19

MW-6000773-01

(1)

12

12

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 27

ImportantIf water treatment proves necessary Remeha recommends the following manufacturers

CillitClimalifeFernoxPermoSentinel

552 Flushing new installations and installations less than 6 months old

Before filling the heating installation it is essential to remove any debris (copper caulking soldering flux) from the installation

1 Clean the installation with a powerful universal cleaner2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

553 Flushing an existing installation

Before filling the heating installation it is essential to remove any sludge deposits which have accumulated in the heating circuit over the years

1 Remove any sludge from the installation2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

554 Connecting the heating circuit

ImportantAbide by the information shown in the hydraulic diagrams

The pipes are not provided

Caution

The heating pipe must be mounted in accordance with the provisions applicableIf installing stop valves position the filldrain valve and the expansion vessel between the stop valves and the boilerAlways install a safety valve calibrated to a maximum of 4 bar on the heating circuit The safety valve can be connected to a venting pot The safety valve must not be used to drain the heating circuitIt is recommended to install a sludge collector on all installations

SeeIf fitting with a hydraulic kit (low-loss header or plate heat exchanger) refer to the kit manual

555 Connecting the condensate discharge pipe

Use a neutralisation station to achieve a pH value of more than 65 (in accordance with prevailing regulations)Discharge the condensates directly into the mains drainage system via a siphon In view of the acidity level (pH 25 to 3) only condensate discharge pipes made from compatible plastic should be used

5 Installation

28 Gas 120 ACE 7717202 - v03 - 24062019

The condensate discharge pipe is located at the rear of the boiler

Do not block the condensate discharge pipeTilt the discharge pipe by at least 30 mm per metre and make sure there are no low points that could cause the accumulation of water or deposits Maximum horizontal length 5 metresDo not drain condensation water into a roof gutterConnect the condensate discharge pipe in accordance with prevailing standardsIt is preferable to use the condensate neutralisers recommended by the manufacturer of the boiler

1 Connect a plastic hose to the condensate discharge outlet (DN 22)2 Insert the other end of the hose into a waste water discharge outlet

556 Filling the siphon

DangerIf operating with the siphon empty combustion products will escape into the premises in which the boiler is installed

1 Pour water into the flue gas pipe (central pipe) until it flows out of the condensate discharge pipe

56 Gas connection

Danger

Close the main gas valve before starting work on the gas pipesThe diameters of the pipes must be defined in accordance with the standards in force in your countryConnect the gas pipe in accordance with prevailing standards and regulationsEnsure that there is no dust in the gas pipe

The gas pipes are not providedIn old gas networks we recommend fitting a gas filter with a low pressure drop upstream of this point

1 Clean the gas supply pipe2 Remove the anti-dust plug located on the boilers gas inlet3 Mount a gas stop valve (not provided) on the boilers gas inlet4 Connect the gas inlet pipe to the gas stop valve

Fig20

MW-2000825-01

pH gt 65

Oslash32A

Fig21

MW-6000742-02

1

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 29

5 Close the gas supply valve before testing the pressure on the gas supply pipe to avoid damage caused by excessive pressure on the gas regulator Decompress before reopening the valve

561 Gas supply

Before mounting check that the gas meter has sufficient capacity (in m3h) To do this you should bear in mind the consumption of all appliances If the capacity of the gas meter is too low inform the gas supply companyThe boilers are preset to run on G20 gas (gas H) and can be adapted to run with the following gases

G31 (gas P)G3031 (gas BP)

ImportantTo use a different type of gas contact an approved assistance service

57 Air supplyflue gas outlet connections

571 Classification

The discharge and intake pipes must be certified for the appropriate configuration and must meet the requirements of the prevailing installation standards in the country

Tab20 Configurations and recommendations for the flue systemConfiguration Principle DescriptionB23B23P

AD-3001055-01

Connection to a chimney using a CE connection kit (single pipe in a flue comshybustion air taken from the boiler room)Follow the connection instructions and adhere to the recommended maximum pipe lengthsComply with the applicable regulations governing ventilation and cross-secshytions for room aeration vents

B33

MW-5000925-1

Room-ventilated version

Without down-draught diverterJoint flue gas discharge via the roof with guaranteed natural draft (at all times underpressure in the joint discharge duct)Flue gas discharge rinsed with air air from the installation area (special conshystruction)The IP rating of the boiler is lowered to IP20

C13C13X

AD-3001056-01

Airflue gas connection using concentric pipes to a horizontal terminal (so-called forced flue) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

5 Installation

30 Gas 120 ACE 7717202 - v03 - 24062019

Configuration Principle DescriptionC33C33X

AD-3001057-01

Airflue gas connection using concentric pipes to a vertical terminal (roof outshylet) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

C43C43X

MW-2000822-01

Airflue gas connection via concentric pipes to a common pipe supplying severshyal heating applicationsThe common pipe has a roof connection to a vertical terminal that draws in the air required for combustion and discharges the combustion productsUse of CE-certified system

C53

AD-3001058-02

Airflue gas connection via separate pipes lead to two separate terminals One draws in the air required for combustion and the other discharges the combusshytion productsThe outlets may be in different pressure zonesDo not install the air supply and discharge on opposing surfacesUse of CE-certified system

C63C63X

The installer is responsible for installing a CE-certified discharge system that complies with the manufacturers recommendations (temperature flow pressure etc)

The maximum pressure drop in the pipes ΔP must not exceed the values given in the table below The pipes must be certified for this type of use and for a temperature of more than 100 degC The terminal part of the flue gas pipe must be certified as complying with the EN 1856-1 StandardIf installing discharge and intake pipes not supplied by Remeha these must be certified for the intended type of use and their maximum pressure drop must be compliant

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 31

Configuration Principle DescriptionC83C83X

MW-2000823-01

Flue gas connection to a collective flue for sealed boilers The air supply is inshydividual via a terminal coming from outside the buildingA concentric pipe can be used to both supply the boiler with combustion air and connect to the collective flue gas discharge systemThe chimney or flue gas pipe must be suitable for such use and the system CE certified

C93C93X

AD-3001059-01

Airflue gas connection via concentric pipes in an existing chimney The air supshyply in the chimney may be installed via the existing channel or via tubing Flue gas discharge and air intake are via a vertical terminal at the top of the chimney

The air intake and discharge must be close enough to be in the same pressure zoneThe minimum cross-sections are shown in the table belowThe flue system must be suitable for the intended use and the system CE certishyfied

Tab21 Minimum dimensions of the duct or pipe C93 C93X

Version (D) Without air supply With air supplyRigid 80 mm Oslash 130 mm 130 x 130 mm Oslash 140 mm 130 x 130 mmRigid 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmRigid 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmFlexible 80 mm Oslash 130 mm 130 x 130 mm Oslash 145 mm 130 x 130 mmFlexible 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmFlexible 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmConcentric 80125 mm Oslash 145 mm 145 x 145 mm Oslash 145 mm 145 x 145 mmConcentric 100150 mm Oslash 170 mm 170 x 170 mm Oslash 170 mm 170 x 170 mmConcentric 150200 mm Oslash 270 mm 270 x 270 mm - -

ImportantThe duct must comply with the air density requirements of the local regulations

Important

Only original components are authorised for connection to the boiler and for the terminalThe clear section must comply with the standardThe chimney must be swept before installing the discharge flue

CautionEnsure that the flue gas discharge pipes are securely attached to the wall with suitable retaining flanges to prevent any damage and guarantee the tightness of every gasket in the circuit

CautionThe minimum gradient of the condensates discharge pipe from the boiler to the waste water discharge must be 1 cm per linear metre

Fig22 Minimum dimensions of the duct or pipe C93 C93X

AD-3000330-03

D

Oslash

D

5 Installation

32 Gas 120 ACE 7717202 - v03 - 24062019

572 Lengths of the airflue gas pipes

The maximum lengths (Lmax) given in the table are valid for pipes in which the horizontal sections do not exceed one metre in total For each additional metre of horizontal pipe a multiplication coefficient of 12 must be applied when calculating the total length L The total length L is calculated by adding the lengths of the straight airflue gas pipes and the equivalent lengths of the other componentsAlways ensure that L is less than Lmax

ImportantFor the list of flue gas system accessories and the equivalent lengths refer to the current price list

Tab22 Lengths of the airflue gas pipes in metresConfigurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 100 mm 26 24 19

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 110 mm 40 40 40

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 110 mm 295 24 175

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 80125 mm - - -

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 100150 mm 9 8 59

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 80125 mm - - -

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 100150 mm 115 10 94

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 80125 mm over 2x80 mm

- - -

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 100150 mm over 2x100 mm

23 175 Air 11Flue gases 5

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm110 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 110150 mm110 mm

16 132 10

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 33

Configurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 110150 mm110 mm

165 135 94

Tab23 PPS pipe reduction for each element used

Diameter 80 mmSingle

80125 mmConcentric

100 mmSingle

100150 mmConcentric

45deg elbow 12 m 10 m 11 m 10 m87deg elbow 19 m 15 m 20 m 37 mStraight inspection tube 03 m 06 m - 10 m87deg inspection elbow 19 m 20 m 48 m -Inspection T 42 m 27 m 56 m 25 mInspection tube for flexible pipe 03 m - 05 m -

573 Dimensions of flue gas outlet pipe

WarningThe pipes connected to the flue gas adapter must satisfy the following dimension requirements

d1 External dimensions of flue gas outlet pipe

Tab24 Dimensions of pipe d1 (min-max)80 mm 793 - 803 mm100 mm 993 - 1003 mm150 mm 149 - 151 mm

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipe

Tab25 Dimensions of pipe d1 (min-max) D1 (min-max)8080 mm 793 - 803 mm 793 - 803 mm100100 mm 993 - 1003 mm 993 - 1003 mm110110 mm 1093 - 1103 mm 1093 - 1103 mm150150 mm 149 - 151 mm 149 - 151 mm

Fig23 Dimensions of open connection

AD-3001094-01

oslashd1

Fig24 Dimensions of parallel connection

AD-3000963-01

oslashd1 oslashD1

5 Installation

34 Gas 120 ACE 7717202 - v03 - 24062019

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipeL1 Length difference between flue gas outlet pipe and air supply pipe

Tab26 Dimensions of pipe d1 (min-max) D1 (min-max) L1

(1) (min-max)80125 mm 793 - 803 mm 124 - 1255 mm 0 - 15 mm100150 mm 993 - 1003 mm 149 - 151 mm 0 - 15 mm

(1) Shorten the inner pipe if the length difference is too great

574 Connection to the flue gas pipe

At delivery the flue gas outletair supply is fixed inside the boiler

1 Using a long tool unlock and remove the boilers front door2 Remove the boiler outlet

3 Two options for connection to the flue gas pipe

Option Description3a Connection to a vertical flue gas pipe Position the flue gas

outletair supply directly at the boiler outlet3b Connection to a horizontal flue gas pipe Insert an outlet elshy

bow ( not supplied) before the flue gas outletair supply

ImportantLubricate the gaskets on the flue system during assembly

Fig25 Dimensions of concentric connection

AD-3000962-01

oslashd1

L1

oslashD1

Fig26

MW-2000867-02

1

2

1

Fig27

3a 3b

MW-2000868-01

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 35

Fastening the coaxial pipes Fasten the intake pipes with two galvanised Oslash 42 mm screws with a maximum length of 16 mm

CautionBefore fixing the screws make sure that at least 45 cm of pipe is inserted in the gasket of the other pipe

WarningGuarantee a minimum pipe slope towards the boiler of at least 5 cm per metre

Fig28 Fastening the coaxial pipes using screws

BO-0000030

16 mm

5 Installation

36 Gas 120 ACE 7717202 - v03 - 24062019

6 Operation

61 Settings

To configure the installation and use the boiler please refer to the control unit manual

6 Operation

7717202 - v03 - 24062019 Gas 120 ACE 37

7 Maintenance

71 General

We recommend having the boiler inspected and serviced at regular intervals

CautionDo not neglect to service the boiler Contact a qualified professional or take out a maintenance contract for the obligatory annual servicing of the boilerFailure to service the appliance voids the warranty

Danger of electric shockBefore service work is started the boiler has to be de-energised and secured from accidentally being switched back on

CautionHave an inspection carried out and the flues swept at least once a year or more depending on the regulations in force in your country

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

CautionAfter maintenance or repair work check the entire heating system to ensure that there are no leaks

CautionOnly genuine spare parts may be used

72 Specific maintenance operations

721 Cleaning the siphon

1 Remove the flue gas outlet discharge pipe

2 Remove the condensate discharge pipe 3 Remove the screw from the siphon

Fig29

1

MW-2000903-01

Fig30

2

3

MW-2000904-01

7 Maintenance

38 Gas 120 ACE 7717202 - v03 - 24062019

4 Pull the siphon downwards to disengage it and pivot it to release it

5 Flush the siphon 6 Drain the siphon

7 Fill the siphon with clean water up to the mark 8 Lubricate the siphon gasket9 Re-engage the siphon and refit the screw

10 Refit the two pipes

722 Checking the ionisation current

1 Check the ionisation current at full load and at low loadThe value is stable after 1 minute

2 Clean or replace the ionisationignition electrode if the value is lower than 4 microA

Fig31

4

90deg

MW-2000905-01

Fig32

MW-2000843-01

Fig33

MW-2000844-01

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 39

723 Replace the ionizationignition electrode

The ionizationignition electrode must be replaced if

The ionization current is lt 4 microAThe electrode is damaged or worn

1 Remove the plug of the electrode from the igniter

ImportantThe ignition cable is fixed to the electrode and therefore may not be removed

2 Remove the two screws3 Remove the entire component4 Fit the new ionizationignition electrode with a new seal5 Reassemble the unit in the reverse order to disassembly

724 Servicing the forced flue connection pipes

1 Open the inspection hatches or remove the pipes2 Check that the air supply and discharge pipes are not blocked

If necessary clean the discharge pipe3 Check the tightness of the flue gas system4 Replace the tightness gaskets and if necessary any sections of pipe

until tightness is perfect

725 Checking the burner and cleaning the heat exchanger

1 Remove the air inlet flue on the venturi2 Loosen the gland on the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

Fig34

AD-0000088-01

4

1

2

3

Fig35 Removing the fan

AD-3001178-01

1

3

4

2

5

7 Maintenance

40 Gas 120 ACE 7717202 - v03 - 24062019

6 Remove the front plate from the heat exchanger7 Carefully lift the front plate including the burner and fan away from

the heat exchanger

8 Use a vacuum cleaner fitted with a special endpiece (accessory) to clean the top part of the heat exchanger (combustion chamber)

9 Vacuum again without the top brush on the end piece10 Clean the lower section of the heat exchanger with the special

cleaning blade (accessory)11 Check (eg using a mirror) whether any visible contamination has

been left behind If it has remove it with the vacuum cleaner12 Check that the burner cover of the dismantled burner is free from

cracks andor damage If not replace the burnerServicing the burner is usually not necessary it is self-cleaning Use compressed air to carefully blow away any dust

13 Reassemble the unit in reverse order

CautionRemember to reconnect the fan plugCheck that the gasket is correctly positioned between the mixing elbow and the heat exchanger (the gasket must lie absolutely flat in the appropriate groove to ensure that no gas can leak)Tighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the front plate nuts with a torque wrench to the firmness of 10 Nm

14 Open the gas supply and switch the power supply to the boiler back on

Fig36 Removing the front plate fan and burner

AD-3001179-01

6

7

Fig37 Cleaning the heat exchanger

AD-3001180-01

10

8 9

12

11

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 41

726 Checking the non-return valve

1 Remove the air inlet pipe from the venturi2 Unscrew the gland of the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

6 Dismantle the fan7 Remove the fan together with the gas valve unit8 Inspect the non-return valve and replace it in the event of a defect or

damage or if the maintenance kit contains a non-return valve9 Reassemble in the reverse order

CautionRemember to reconnect the fan plugTighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the two fan nuts with a torque wrench to the firmness of 38 Nm

Fig38 Disconnecting the fan

AD-3001178-01

1

3

4

2

5

Fig39 Checking the non-return valve

AD-3001181-01

2x

68

7

9

7 Maintenance

42 Gas 120 ACE 7717202 - v03 - 24062019

8 Decommissioning

81 Decommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

To switch off the boiler temporarily or permanently proceed as follows

1 Switch the boiler off2 Cut the electrical power to the boiler3 Close the gas valve on the boiler4 Drain the central heating system or ensure frost protection5 Close the door of the boiler to prevent air circulating inside it6 Remove the pipe connecting the boiler to the chimney and close the

nozzle with a plug

82 Recommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

Should it prove necessary to carry out the recommissioning of the boiler proceed as follows

1 Re-establish electrical power to the boiler2 Fit and check the flue gas pipe3 Fill the siphon with water4 Fill the central heating system5 Open the boiler gas valve6 Start up the boiler

8 Decommissioning

7717202 - v03 - 24062019 Gas 120 ACE 43

9 Disposal and recyclingCautionOnly qualified professionals are permitted to remove and dispose of the boiler in accordance with local and national regulations

If you need to remove the boiler proceed as follows

1 Switch off the boiler2 Cut the power supply to the boiler3 Close the main gas valve4 Close the water mains5 Close the gas valve on the boiler6 Drain the installation7 Remove the airflue gas pipes8 Disconnect all pipes9 Dismantle the boiler

Fig40

MW-3000179-03

9 Disposal and recycling

44 Gas 120 ACE 7717202 - v03 - 24062019

10 Environmental

101 Energy savings

Energy-saving advice

Do not block ventilation outletsDo not cover the radiators Do not hang curtains in front of the radiatorsInstall reflective panels behind the radiators to prevent heat lossesInsulate the pipes in rooms that are not heated (cellars and lofts)Close the radiators in rooms not in useDo not run hot (or cold) water pointlesslyInstall an energy-saving shower head which can save up to 40 energyTake showers rather than baths A bath consumes twice as much water and energy

102 Room thermostat and settings

Various models of room thermostat are available The type of thermostat used and the parameter selected impact total energy consumption

A modulating regulator which may be combined with thermostatic valves is eco-friendly in terms of energy and offers an excellent level of comfort This combination allows you to set the temperature separately for each room However do not install thermostatic radiator valves in the room in which the room thermostat is locatedComplete opening and closing of the thermostatic radiator valves causes undesirable variations in temperature Therefore these must be openedclosed progressivelySet the room thermostat to a temperature of approximately 20degC to reduce heating costs and energy consumptionLower the thermostat setting to approximately 16degC at night or when you are not at home This reduces heating costs and energy consumptionLower the thermostat setting well before airing the roomsSet the water temperature to a lower level in summer than in winter (eg 60degC and 80degC respectively) when an ONOFF thermostatis usedWhen clock thermostats and programmable thermostats are to be set do not forget to take any holidays and days when no one is at home into account

10 Environmental

7717202 - v03 - 24062019 Gas 120 ACE 45

11 Warranty

111 General

We would like to thank you for buying one of our appliances and for your trust in our productIn order to ensure continued safe and efficient operation we recommend that the product is regularly inspected and maintainedYour installer and our service department can assist with this

112 Terms of warranty

The following provisions do not affect the application in favour of the buyer of the legal provisions with regard to hidden defects that are applicable in the buyers countryThis appliance comes with a warranty that covers all manufacturing faults the warranty period will commence on the date of purchase stated on the installers invoiceThe warranty period is stated in our price listAs a manufacturer we can by no means be held liable if the appliance is used incorrectly is poorly maintained or not maintained at all or is not installed correctly (it is your responsibility to ensure that installation is carried out by a qualified installer)In particular we cannot be held liable for material damage intangible losses or physical injury resulting from an installation that does not comply with

Legal or regulatory requirements or provisions laid down by the local authoritiesNational or local regulations and special provisions relating to the installationOur manuals and installation instructions in particular in terms of regular maintenance of the appliances

Our warranty is limited to the replacement or repair of the parts found to be defective by our technical services team excluding labour transfer and transport costsOur warranty does not cover replacement or repair costs for parts that may become defective due to normal wear incorrect usage the intervention of unqualified third parties inadequate or insufficient supervision or maintenance a mains supply that is not appropriate or the use of unsuitable or poor quality fuelSmaller parts such as motors pumps electrical valves etc are guaranteed only if these parts have never been dismantledThe rights established in European Directive 9944EEC implemented by legal decree No 24 of 2 February 2002 and published in Official Journal No 57 of 8 March 2002 remain in force

11 Warranty

46 Gas 120 ACE 7717202 - v03 - 24062019

12 Spare parts

121 General

If inspection or maintenance work bring to light the need to replace a component in the boilerProvide the reference number given in the spare parts list when ordering a spare part

CautionOnly genuine spare parts may be used

122 Spare parts lists

1221 Exchanger

Fig41

MW-6000743-01

811x

7

7

4

2

16

3

10

119

65

1

13

12

18

14

19

15

18

17

Tab27

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

1 7699615 Complete exchanger x 1 7699614 Complete exchanger x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 47

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

2 S101564 Exchanger front plate x x x3 S54731 Exchanger inspection hatch insulation x x x4 S57241 Exchanger inspection hatch gasket x x x5 S100052 M4x10 self-locking screw (x20) x x x6 S54754 FURQ65 burner x 6 S57477 FURQ85 burner x x7 7623837 Set of 10 k NTC sensors x x x8 S54755 M6 nut (x20) x x x9 7659755 M4x10 screw (x10) x x x10 S53489 Electrode gasket (x10) x x x11 7692359 Ignition electrode x x x12 7631936 Flue gas flow pipe diameter 100 mm x x x13 7624643 NTC 2x20 k flue gas sensor with gasket x x x14 7624619 Ignition transformer x x x15 S56987 ZP M6x16 screw (x10) x x x16 7616253 Valve with support x x x17 7680596 Exchanger bracket x 17 7673616 Exchanger bracket x x18 7701752 Gasket diameter 100 mm (x5) x x x19 7632708 Earth electric clip (x2) x x x

1222 Gas circuit

Fig42

MW-6000744-01

3

2

5

6

9

4

8

10

7

12

11

1

14

13

13

12 Spare parts

48 Gas 120 ACE 7717202 - v03 - 24062019

Tab28Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 S101543 Silencer x 1 S101520 Silencer x 1 S101578 Silencer x2 S54777 Venturi gasket (x5) x 2 S59215 Gas valve-venturi gasket (x5) x 2 S101593 Gaskets (kit) x3 S101726 Fan RG 1481200-3633 x x 3 S100036 Fan RG 148 1200-3633-010202 x4 S101596 Gas valve VK4115v1386 x 4 S101597 Gas valve VK4115vb1012 x 4 S101510 Gas valve GB-ND 057 XP x5 S54766 Venturi x 5 S57488 Venturi x 5 S101595 Venturi VMS 45900450-010 x6 S59215 Gas valve-venturi gasket (x5) x x 7 S57827 Gas valve unit flange x8 S57828 268x22x25 O-ring (x5) x9 S101631 Diaphragm x10 7616249 Flue gas sensor cap (5x) x x x11 S56155 238x177x2 gasket (x20) x x x12 95760050 C HC M4-12 88 ZN3 screw x x x13 S48512 M5-10 screw (x10) x x x14 S101590 Silencer retaining clip x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 49

1223 Hydraulic circuit

Fig43

MW-6000745-01

1

14

6

9

11

8

12

5

37

9

10

2

4

13

Tab29Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7680598 Complete flow pipe x 1 7670807 Complete flow pipe x x2 7672557 Complete return pipe x x x3 7674076 Complete gas pipe x 3 7680434 Complete gas pipe x 3 7670720 Complete gas pipe x4 7698560 HUBA G38 pressure gauge x x x5 94994712 PVC pipe diameter 16x12 x x x6 7699357 Water deflector diameter 100 mm x x x7 94902073 Drain valve 12 x x x8 94918138 Air vent x x x9 95013064 44x32x2 mm green gasket x x x10 95013060 24x17x2 mm green gasket x x 10 95013062 30x21x12 mm green gasket x11 7692329 Condensate hose x x x13 7706103 Assembled siphon height 160 mm x 13 7706038 Assembled siphon height 250 mm x x14 7103731 Condensate drain pan gasket x x x

12 Spare parts

50 Gas 120 ACE 7717202 - v03 - 24062019

1224 Boiler body

Fig44

MW-6000746-01

2

2

1

6

3

34

5

4

Tab30Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7686377 Assembled frame x 1 7686139 Assembled frame x x2 7679958 117x34 handle diameter 65 mm x x x3 7676037 Wheel x x x4 7688301 Frame lateral gasket x 4 7688008 Frame lateral gasket x x5 7688353 Front panel gasket x 5 7688007 Front panel gasket x x6 7693874 R4-05 front panel lock x x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 51

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

E toimistoestsystemsfi

Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 11: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

3 Technical specifications

31 Homologations

311 Directives

This product has been manufactured and put into circulation in accordance with the requirements and standards of the following European Directives

Gas Appliances Regulation (EU) (2016426)

Pressure Equipment Directive 201468EU

Electromagnetic Compatibility Directive (201430EU)

Low Voltage Directive (201435EU)

Efficiency Directive (9242EEC)

European Ecodesign Directive (2009125EC)EU Regulation (8132013)

Energy Labelling Framework Regulation (EU) (20171369)EU Regulation (8112013)

BS 7074 Part 1 Application selection and installation of expansion vessels and ancillary equipment for sealed water systemsBS 6644 Specification for the installation of gas-fired condensing boilers with a nominal output exceeding 70 kWBS EN 12828 Design for water-based heating systemsBS EN 13831 Closed expansion vessels

Apart from the legal provisions and Directives the additional Directives described in these instructions must also be observedFor all provisions and Directives referred to in these instructions it is agreed that all addenda or subsequent provisions will apply at the time of installation

312 EC Declaration of Conformity

The unit complies with the standard type described in the EC declaration of conformity It has been manufactured and commissioned in accordance with European directivesThe original declaration of conformity is available from the manufacturer

313 Gas categories

Tab1 Czech Republic Spain Greece Portugal Switzerland UK

Category Gas type Connection pressure (mbar) Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

II2H3BP G20 (H gas) 20 X X X G30G31 (butanepropane) 303750 X X X

314 Certifications

Tab2 CertificationsCE number 0085CT0009NOx class 6 (EN 15502-1)

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 11

Type of flue gas connection Chimney

B23B23PB33

Forced flue

C13C13XC33C33XC43C43XC53C63C63XC83C83XC93C93X

315 Factory test

Before leaving the factory each boiler is optimally set and tested for

Electrical safetySettings (CO2)Water tightnessGas tightnessParameter setting

32 Technical data

Tab3 GeneralGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Nominal heat output (Pn)Central heating operation (80 degC60 degC)

minndashmax kW 120 - 615 141 - 842 189 - 1039

Nominal heat output (Pn)Central heating operation (50 degC30 degC)

minndashmax kW 135 - 650 158 - 895 212 - 1097

Nominal input power (Qn)Heating mode (Hi)

minndashmax kW 122 - 620 146 - 860 196 - 1070

Nominal input power (Qn)Heating operation (Hi) G31 (propane)

minndashmax kW 122 - 620 221 - 860 212 - 1070

Nominal input power (Qn)Central heating operation (Hs)

minndashmax kW 137 - 689 162 - 955 217 - 1189

Full load heating mode efficiency (Hi) (8060 degC) (9242EEC)

992 979 971

Full load heating mode efficiency (Hi) (50 degC30 degC)

1046 1041 1025

Part load heating mode efficiency (9242EEC) (return temperature 30 degC)

1104 1081 108

Tab4 Gas and flue gas valuesGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115G20 gas consumption (H gas)(1) minndashmax m3h 13 - 66 15 - 91 20 - 117Gas consumption G31 (propane)(1)

minndashmax m3h 05 - 25 09 - 35 09 - 45

3 Technical specifications

12 Gas 120 ACE 7717202 - v03 - 24062019

Gas 120 ACE Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

Gas resistance G20 (H gas)(2) max mbar 20 25 30BREAM NOx mgkWh 32 29 35Flue gas quantity minndashmax m3h 18 - 90 22 - 125 30 - 160Flue gas temperature minndashmax degC 30 - 120 30 - 120 30 - 120Maximum counter pressure (Pn) Pa 100 160 220

(1) Gas consumption based on lower heating value in standardised conditions T=28815 K p=101325 mbar Gag 3033 G25 2925 G31 8800 MJm3

(2) Gas resistance between boiler connection and measurement point on the gas valve unit

Tab5Gas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Gas inlet pressure G20 (H gas) minndashmax mbar 17 - 25 17 - 25 17 - 25G30G31 gas inlet pressure (ButanePropane) minndashmax mbar 37 - 50 37 - 50 37 - 50G31 gas inlet pressure (Propane) minndashmax mbar 37 - 50 37 - 50 37 - 50

Tab6 Central heating circuit dataGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Water content l 71 101 101Water operating pressure min bar 08 08 08Water operating pressure (MOP) max bar 40 40 40Water temperature max degC 110 110 110Operating temperature max degC 90 90 90Pressure drop secondary circuit (ΔT = 20 K) mWC 17 16 26Maximum permitted temperature difference(1) max degC 40(1) 40(1) 35(1)

(1) with a maximum flow temperature of 80 degC

Tab7 Electrical dataGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Supply voltage (AC) V 230 230 230Power consumption ndash full load max W 92 124 180Power consumption - low load max W 25 24 344Power consumption ndash standby max W 6 5 9Electrical protection rating IP X1B X1B X1BFuses Main A 10 10 10

Tab8 Other dataGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Total weight (empty) kg 98 109 109Average acoustic level at a distance of one meshytre from the boiler

dB(A) 40 45 45

SeeThe back cover for contact details

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 13

321 ErP technical parameters

Tab9 Technical parameters for boiler space heatersProduct name Gas 120 ACE

- 65Gas 120 ACE - 90

Gas 120 ACE - 115

Condensing boiler Yes Yes YesLow-temperature boiler(1) No No NoB1 boiler No No NoCogeneration space heater No No NoCombination heater No No NoRated heat output Prated kW 62 84 104

Useful heat output at rated heat output and high temperature regime(2)

P4 kW 615 842 1039

Useful heat output at 30 of rated heat output and low temperature regime(1)

P1 kW 205 279 347

Seasonal space heating energy efficiency ƞs 94 - -Useful efficiency at rated heat output and high temperature regime(2)

ƞ4 894 882 875

Useful efficiency at 30 of rated heat output and low temperature regime(1)

ƞ1 995 974 973

Auxiliary electricity consumption Full load elmax kW 0092 0124 0180Part load elmin kW 0025 0024 0034Stand-by PSB kW 0006 0005 0009

Other specifications Standby heat loss Pstby kW 0114 0119 0119Ignition burner power consumption Pign kW - - -Annual energy consumption QHE GJ 190 - -Sound power level indoors LWA dB 55 61 60Emissions of nitrogen oxides NOx mgkWh 29 41 41(1) Low temperature means for condensing boilers 30degC for low temperature boilers 37degC and for other heaters 50degC return temperature

(at heater inlet)(2) High temperature regime means 60 degC return temperature at heater inlet and 80 degC feed temperature at heater outlet

SeeThe back cover for contact details

322 Circulating pump (not provided)

The boiler is supplied without a circulating pump Take the boiler pressure drop and system pressure drop into account when selecting a pump

CautionThe maximum output of a pump that can be connected is 200 W Above this use an auxiliary relay adapted to the pump output

If possible install the pump in direct connection to the boiler on the return circuit

For more information see

Circulating pump

The maximum difference in temperature between the flow water and the return water and the speed at which the boiler temperature increases are restricted by the boilers control system

3 Technical specifications

14 Gas 120 ACE 7717202 - v03 - 24062019

Tab10 Minimum flow to be guaranteedMinimum flow to be guaranteed in the boiler Unit Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Minimum flow rate litreshour 290 340 455

A Dynamic head in mWcB Water flow rate (m3h)C Pressure drops

ΔT Maximum temperature difference between the flow water and the return water in the boiler

A Dynamic head in mWcB Water flow rate (m3h)C Pressure drops

ΔT Maximum temperature difference between the flow water and the return water in the boiler

A Dynamic head in mWcB Water flow rate (m3h)C Pressure drops

ΔT Maximum temperature difference between the flow water and the return water in the boiler

323 Sensor specifications

Outside temperature sensor specifications

Tab11 Outside temperature sensorTemperature degC -20 -16 -12 -8 -4 0 4 8 12 16 20 24Resistance Ω

(Ohm)2392 2088 1811 1562 1342 1149 984 842 720 616 528 454

Fig2 Pressure drops for Gas 120 ACE - 65

MW-2000671-3

T=20KT=40K

175

Fig3 Pressure drops for Gas 120 ACE - 90

MW-2000673-3

T=20KT=40K

362

Fig4 Pressure drops for Gas 120 ACE - 115

MW-2000674-3

T=20KT=35K

447

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 15

Boiler sensor return sensor

Tab12 Boiler sensor return sensorTemperature in degC

-20 -10 0 10 20 25 30 40 50 60 70 80 90 100 110

Resistance in Ω

98932 58879 36129 22804 14773 10000 9804 6652 4607 3252 2337 1707 1266 952 726

Circuit flow sensor domestic hot water sensor and system sensor

Tab13 Circuit flow sensor domestic hot water sensor and system sensorTemperature in degC 0 10 20 25 30 40 50 60 70 80 90Resistance in Ω 32014 19691 12474 10000 8080 5372 3661 2535 1794 1290 941

Specifications of the boiler flue gas sensor

Tab14 Boiler flue gas sensorTemperature degC 0 10 20 30 40 50 60 70 80 90 100Resistance Ohm 66000 40000 20000 16100 10600 7160 4940 3480 2490 1810 1340

33 Dimensions and connections

Fig5

MW-2000684-03

A

D

E

FG

BC

600 605150

92

132

240

141

418

5

2

34

107

105

95

100

1

255145

1 Heating circuit flow (R114)2 Gas inlet (G34)3 Heating circuit return (R114)

4 Condensate discharge (DN22)5 Flue gas pipe

Tab15 Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 1155 Diameter 100150 mm Diameter 100150 mm Diameter 100150 mmA (mm) 1340 1562 1562B (mm) 1164 1386 1386C (mm) 1082 1304 1304D (mm) 971 1193 1193

3 Technical specifications

16 Gas 120 ACE 7717202 - v03 - 24062019

Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 115E (mm) 410 632 632F (mm) 87 303 303G (mm) 128 350 350

34 Electrical diagram

341 Electrical diagram of boiler

Fig6

CU-GH-08

X3X4X5

X6

X8

1

2

3

1

2

3

X14

X7

X10

X11

X13

X12

1

2

3

4

5

25 A

Nrsquo

1

2

3

4

YE

GY

BR

GR

1

2

3

4

1

2

3

4

1

2

N L

1

2

1

2

OPTION

PRESSURE

SWITCH

MW-2000850-04

230V

1 2 3 4 5 6 7 8 9 10

24V

12 11

BL OR

10 9 8 7 6

GR BK RE YE BL

5 4 3 2 1

OR BK RE YE BL

Lrsquo

BL

GY

GY

GY

BL BR

GY

BL

BR

GY BL

BR

GY

BR

GR BK RE YE BL OR BK RE YE BL

BK

BL

BR

RE

GR

GR

BK

GR

GY

YE

BR

BL

OR

1

2

3

4

5

1

2

3

RE

BK

GR

BR

BK

BL

GR

1

2

BR

GR

GY

RE BL

BL

BK

BK

BR YE

GR PI

BL

BL

GR

PI

GR

RE

BR

YE

BK

BK

BR

GY

BL

BL

BR

GY

GY

BR

BL BL GY

BR

BL

BR

BK

GYWH

GY

BL

GY

BL

BR

BK

WH

BL

GY

1 12

4

5

2

3

6

7

8

9

10

11

16

17

15

14

13

1 230 V connector connection with control unit2 Mains interference filter3 Earthing of boiler front door4 Return sensor (TR)5 Flow sensor (FTS)6 Flue gas sensor7 Flue gas pressure switch (specific option for the

Netherlands)8 Gas valve unit (GB)9 Igniter (IT)

10 Ionizationignition electrode (E)11 Fan supply12 24 V connector connection with control unit13 Storage information (CSU)14 Pressure sensor (PS)15 Fan control (PWM)16 Light17 Control unit (CU-GH08)BK BlackBL Blue

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 17

BR BrownGY GreenYellowYE YellowOR OrangeGR Green

PI PinkGY GreyRD RedWH White

3 Technical specifications

18 Gas 120 ACE 7717202 - v03 - 24062019

4 Description of the product

41 General description

Gas 120 ACE floor-standing condensing gas boilers have the following characteristics

Low polluting emissionsHigh-efficiency heatingElectronic control panelFlue gas discharge by a forced flue or chimney type connection with bi-flow option

The boilers are perfectly suited to cascade installation

42 Operating principle

421 Gasair setting

The casing fitted to the boiler is also used as an air box Air is drawn in by the fan and gas injected into the Venturi by the fan intake The fan speed is modulated according to the settings the heat demand and the actual temperatures measured by the temperature sensors The gas and air are mixed in the Venturi The gasair ratio command function accurately adjusts the quantities of gas and air required This provides optimum combustion over the entire output range The gasair mixture is sent to the burner located upstream of the heat exchanger

422 Settings and safety devices

ImportantThe settings and safety devices are only operational if the boiler is powered up

Tab16 Description of the safety devicesDevice DescriptionNTC flue gas sensor The control panel blocks the gas supply to the burner in the event of overheatingFlame detector by ionisation The boiler is put into safety lock-down in the event of gas shortage or incomplete cross-

lighting on the burnerHydraulic pressure switch When the pressure switch detects a pressure lower than 08 bar (008 MPa) a warning

message is displayed without stopping the circulating pumpPost-circulating pump After the burner stops depending on the room thermostat setting and if in heating

mode the circulating pump runs for a further 3 minutesFrost protection device When the flow temperature is lower than 5 degC the burner starts up and runs until the

flow temperature reaches 15 degC This device runs under the following conditions

The boiler is switched onThe gas supply is workingThe pressure in the system is higher than 05 bar (005 MPa)

Anti-blocking of the pump If there are no heating or domestic hot water requirements for 24 consecutive hours the pumps start up automatically and run for 10 seconds

Anticipatory start-up of the circulatshying pumps

In heating mode only the appliance can start up the circulating pumps before burner igshynition The duration and activation of anticipatory start-up depends on the installation reshyquirements and the operating temperatures The duration of anticipatory start-up of the circulating pumps therefore varies from a few seconds to several minutes

4 Description of the product

7717202 - v03 - 24062019 Gas 120 ACE 19

43 Main boiler components

1 Control unit2 Flow sensor3 Light4 Ignitionionization electrode5 Non-return valve6 Gas valve7 Heat exchanger (heating circuit)8 Return sensor9 Pressure gauge sensor

10 CU-GH-08 PCB housing11 Siphon12 Flue gas circuit13 Intake silencer14 Venturi15 Flue gas sensor16 Fan17 Automatic air vent18 Flue gas measuring point19 Combustion air measuring point20 Flue gas outletair supply

44 PCBs

441 Description of the CU-GH-08 PCB

This PCB controls the core boiler components sensors actuators and gas valveThis PCB is factory-fitted and fully cabled and does not require any operationThe sensors valves circulating pumps etc are connected at the control unit

45 Standard delivery

The Gas 120 ACE boiler comes in 2 packages including

Tab17 Package contentsPackage ContentPackage 1 A floor-standing gas boiler

A flue system outlet with a measuring point (stored in the boiler)An outdoor temperature sensorA data plateAn installation and service manual

Package 2 A control unitTwo control unit mounting bolts on the boilerA user manual

46 Accessories amp options

A detailed list of accessories and options can be found in our catalogue

Fig7

MW-2000670-02

16

7 13

12

11

10

19

18

20

17

14

15

6

5

2

9

4

3

1

8

4 Description of the product

20 Gas 120 ACE 7717202 - v03 - 24062019

5 Installation

51 Installation regulations

CautionInstallation of the boiler must be done by a qualified professional in accordance with prevailing local and national regulations

CautionA disconnection device must be fitted to the permanent pipes in accordance with the installation rules

CautionRespect the maximum water inlet pressure to ensure correct operation of the appliance referring to the Technical Specifications chapter

52 Choice of the location

Decide on the ideal position for installation bearing in mind any legal directives and the space required by the appliance

Install the boiler on a solid stable structure capable of bearing the weight of the appliance when full of water and fully equippedWhen choosing the position for installation of the boiler bear in mind the positions authorised for the combustion gas discharge outlets and the air intake ventDo not install the boiler near any heat sources

521 Data plate

The data plate is located on the back of the boilerThe data plate provides important information regarding the appliance

Serial numberModelGas categoryCN1CN2etc

Once installation is complete the second data plate supplied in the documentation bag can be affixed to a more visible part of the boilerIf the boiler is equipped with a hydraulic kit (low-loss header or plate heat exchanger) affix the data plate to the side of the boiler

522 Space required - Boiler ventilation

Decide on the ideal position for installation bearing in mind any legal directives and the space required by the appliance

Install the boiler on a solid stable structure capable of bearing the weight of the appliance when full of water and fully equippedWhen choosing the position for installation of the boiler bear in mind the positions authorised for the combustion gas discharge outlets and the air intake ventDo not install the boiler near any heat sources

Fig8

MW-6000735-01

Made in France0085

CN1 17

CN2 7

230 V 50 Hz

B23(P) - B33 - C13(X) - C33(X) - C43(X) - C53 - C63(X) - C83(X) - C93(X)

PMS= 4bar - 04MPa

Pn =

8060 degC

5030 degC

NOx class 6 (Nox lt 56 mgkWh)

Qn =Hi kW

4030 degC

189-1039

196-1070

212-1097

180W

0085CT009

Hs (G20) 217-1189

IP21Imax= 10A

Tmax= 90degC

FR

LT

IT

AT

CZ

PL

II2Esi3BP

II2H3BP

II2H3BP

II2H3BP

II2H3P

II2H3BP

II2H3BP

II2ELw3BP

G20-20mbar G25-25mbar G30G31-303750mbar

G20-20mbar G30G31 - 30mbar

G20-20mbar G30G31 - 303750 mbar

G20-20mbar G30G31 - 3037mbar

G20-20mbar G31 - 30mbar

G20-20mbar G30G31 - 50mbar

G20-20mbar G30G31-303750mbar

G20-20mbar G27-20mbar G3031-37mbar

kW

Art Nr SN A0000YYWW000

kW

kW

kW

kW

kW

ESGR PT

LU RO EE

YY-WW

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 21

Keep the boiler accessible at all timesPlace the boiler on a base to make it easier to clean the roomThe boiler can be located along a partition on one of its sides provided there is a 500 mm space on the opposite sideAllow enough space around the boiler to facilitate accessibility and maintenance The minimum recommended dimensions are shown in the illustrationMake sure there is a connection to the water drainage system close to the boiler to discharge any condensates

ImportantTo fit the boiler position the pallet with the package 25 m in front of the desired location for the installation This distance is required to allow the boiler to be removed from its pallet

Tab18Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 115

A (mm) 500 500 500B (mm) 1082 1304 1304

To allow the intake of combustion air sufficient ventilation must be provided in the boiler room the cross section and position of which must satisfy the regulations in force

Great Britain BS 5440 Part 1 and Part 2

For boilers with a nominal output of more than 70 kW Upper and lower air vents comshypulsory

BS 6644 and IGEMUP-10

Caution

Avoid any low points in the flue gas and condensate discharge circuit in order to prevent any accumulation of condensatesDo not block the air inlets in the room or the combustion product evacuation or condensation water flow pipes (even partially)

If the boiler is installed in closed premises respect the minimum dimensions given in the diagram below Also allow for openings to obviate the following hazards

Accumulation of gasOverheating of the premisesGreat Britain Minimum cross section of openings see BS 5440 Part 1 and Part 2 and BS 6644

523 Ventilation

To allow the intake of combustion air sufficient ventilation must be provided in the boiler room for which the cross section and position must satisfy the regulations in force in the country in which the boiler is installed

Great Britain BS 5440 Part 1 and Part 2

For boilers with a nominal output of more than 70 kW Upper and lower air vents comshypulsory

BS 6644 and IGEMUP-10

Fig9

MW-2000679-03

500

B

1100

AS1

S2

260

580

350

600

500

5 Installation

22 Gas 120 ACE 7717202 - v03 - 24062019

If the boiler is installed in closed premises respect the minimum dimensions given in the diagram below Also allow for openings to obviate the following hazards

Accumulation of gasOverheating of the premisesGreat Britain Minimum cross section of openings see BS 5440 Part 1 and Part 2 and BS 6644

524 Fitting the outdoor sensor

Plugs diameter 4 mmdrill diameter 6 mm

1 Choose a recommended location for the outdoor sensor2 Put the 2 plugs in place delivered with the sensor3 Secure the sensor using the screws provided (diameter 4 mm)4 Connect the cable to the outdoor temperature sensor

Recommended positions

Place the outside sensor in a position that covers the following characteristics

On a faccedilade of the area to be heated on the north if possibleHalf way up the wall of the area to be heatedUnder the influence of changes in the weatherProtected from direct sunlightEasy to access

Fig11

MW-8800N001-3

2

1

2

11

2

H

12 H (min 25 m)

12 H (min 25 m)

12 Z

H

Z

1 Optimum location2 Possible position

H Inhabited height controlled by the sensorZ Inhabited area controlled by the sensor

Positions to be avoided

Avoid placing the outside sensor in a position with the following characteristics

Masked by part of the building (balcony roof etc)Close to a disruptive heat source (sun chimney ventilation grid etc)

Fig10

MW-8800N003-6

23

4

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 23

Fig12

MW-3000014-2

53 Transport

Transport the boiler pallet with a manual or electric pallet truck

54 Unpacking and preparing the boiler

Caution

Wear gloves to handle the boilerTransport the boiler pallet with a manual or electric pallet truckUse carrying bars (not provided) to move the boiler

ImportantTo fit the boiler position the pallet with the package 25 m in front of the desired location for the installation This distance is required to allow the boiler to be removed from its pallet

1 Cut the packaging2 Remove the packaging from the boiler but leave the boiler on the

shipping pallet

ImportantThe documentation bag (user manual + accessories) is contained in the protective block

Fig13

MW-6000736-01

Manual

11

12

5 Installation

24 Gas 120 ACE 7717202 - v03 - 24062019

3 Using a long tool unlock and remove the boilers front door Disconnect the earth wire

4 Remove the mounting bolts from the unloading ramps and the boiler (4 bolts at the rear and 4 bolts at the front)

5 Pull out the unloading ramps and turn them over6 Align the ramps with the rear castor wheels on the boiler

Fig14

MW-6000761-01

3

3

Fig15

MW-6000737-01

4

4

Fig16

MW-6000738-01

5

5

6

6

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 25

7 Lock the ramps correctly onto the pallet8 Screw the unloading ramps onto the pallet9 Fold down the ends of the ramp so that they rest on the ground

10 Tilt the boiler backwards until it is resting on the castor wheels then remove it from the pallet

11 Recycle the pallet

Fig17

MW-6000770-01

9

9

8

7

Fig18

MW-6000739-02

600

350

11

10

550

5 Installation

26 Gas 120 ACE 7717202 - v03 - 24062019

12 Level the boiler using the adjustable feet(1) Factory setting 30 mm adjustment range 20 to 40 mm

CautionThe rear castor wheels must no longer be in contact with the ground

55 Hydraulic connections

551 Water treatment

In many cases the boiler and the heating system can be filled with mains water without treating the water

CautionDo not add any chemical products to the heating water without first consulting a water treatment specialist For example antifreeze water softeners products to increase or reduce the pH value chemical additives andor inhibitors These may cause faults in the boiler and damage the heat exchanger

Important

Flush the installation with at least 3 times the volume of water contained in the heating systemFlush the DHW circuit with at least 20 times its volume of water

The water in the installation must comply with following specifications

Tab19 Installation water specifications Initial commissioning Concentration (top up)Degree of acidity (untreated water) pH 65 - 85 65 - 85

Degree of acidity (treated washyter) pH 70 - 90 70 - 90

Conductivity at 25degC μScm le 500 le 500Chlorides mglitre le 50 le 50Other components mglitre lt 1 lt 1

Total water hardnessdegf 5 - 35 le 15degdH 28 - 200 le 85mmollitre(1) 05 - 35 lt 15

(1) Flow temperature less than 90degC mdash Maximum hardness 150 mmoll

Fig19

MW-6000773-01

(1)

12

12

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 27

ImportantIf water treatment proves necessary Remeha recommends the following manufacturers

CillitClimalifeFernoxPermoSentinel

552 Flushing new installations and installations less than 6 months old

Before filling the heating installation it is essential to remove any debris (copper caulking soldering flux) from the installation

1 Clean the installation with a powerful universal cleaner2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

553 Flushing an existing installation

Before filling the heating installation it is essential to remove any sludge deposits which have accumulated in the heating circuit over the years

1 Remove any sludge from the installation2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

554 Connecting the heating circuit

ImportantAbide by the information shown in the hydraulic diagrams

The pipes are not provided

Caution

The heating pipe must be mounted in accordance with the provisions applicableIf installing stop valves position the filldrain valve and the expansion vessel between the stop valves and the boilerAlways install a safety valve calibrated to a maximum of 4 bar on the heating circuit The safety valve can be connected to a venting pot The safety valve must not be used to drain the heating circuitIt is recommended to install a sludge collector on all installations

SeeIf fitting with a hydraulic kit (low-loss header or plate heat exchanger) refer to the kit manual

555 Connecting the condensate discharge pipe

Use a neutralisation station to achieve a pH value of more than 65 (in accordance with prevailing regulations)Discharge the condensates directly into the mains drainage system via a siphon In view of the acidity level (pH 25 to 3) only condensate discharge pipes made from compatible plastic should be used

5 Installation

28 Gas 120 ACE 7717202 - v03 - 24062019

The condensate discharge pipe is located at the rear of the boiler

Do not block the condensate discharge pipeTilt the discharge pipe by at least 30 mm per metre and make sure there are no low points that could cause the accumulation of water or deposits Maximum horizontal length 5 metresDo not drain condensation water into a roof gutterConnect the condensate discharge pipe in accordance with prevailing standardsIt is preferable to use the condensate neutralisers recommended by the manufacturer of the boiler

1 Connect a plastic hose to the condensate discharge outlet (DN 22)2 Insert the other end of the hose into a waste water discharge outlet

556 Filling the siphon

DangerIf operating with the siphon empty combustion products will escape into the premises in which the boiler is installed

1 Pour water into the flue gas pipe (central pipe) until it flows out of the condensate discharge pipe

56 Gas connection

Danger

Close the main gas valve before starting work on the gas pipesThe diameters of the pipes must be defined in accordance with the standards in force in your countryConnect the gas pipe in accordance with prevailing standards and regulationsEnsure that there is no dust in the gas pipe

The gas pipes are not providedIn old gas networks we recommend fitting a gas filter with a low pressure drop upstream of this point

1 Clean the gas supply pipe2 Remove the anti-dust plug located on the boilers gas inlet3 Mount a gas stop valve (not provided) on the boilers gas inlet4 Connect the gas inlet pipe to the gas stop valve

Fig20

MW-2000825-01

pH gt 65

Oslash32A

Fig21

MW-6000742-02

1

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 29

5 Close the gas supply valve before testing the pressure on the gas supply pipe to avoid damage caused by excessive pressure on the gas regulator Decompress before reopening the valve

561 Gas supply

Before mounting check that the gas meter has sufficient capacity (in m3h) To do this you should bear in mind the consumption of all appliances If the capacity of the gas meter is too low inform the gas supply companyThe boilers are preset to run on G20 gas (gas H) and can be adapted to run with the following gases

G31 (gas P)G3031 (gas BP)

ImportantTo use a different type of gas contact an approved assistance service

57 Air supplyflue gas outlet connections

571 Classification

The discharge and intake pipes must be certified for the appropriate configuration and must meet the requirements of the prevailing installation standards in the country

Tab20 Configurations and recommendations for the flue systemConfiguration Principle DescriptionB23B23P

AD-3001055-01

Connection to a chimney using a CE connection kit (single pipe in a flue comshybustion air taken from the boiler room)Follow the connection instructions and adhere to the recommended maximum pipe lengthsComply with the applicable regulations governing ventilation and cross-secshytions for room aeration vents

B33

MW-5000925-1

Room-ventilated version

Without down-draught diverterJoint flue gas discharge via the roof with guaranteed natural draft (at all times underpressure in the joint discharge duct)Flue gas discharge rinsed with air air from the installation area (special conshystruction)The IP rating of the boiler is lowered to IP20

C13C13X

AD-3001056-01

Airflue gas connection using concentric pipes to a horizontal terminal (so-called forced flue) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

5 Installation

30 Gas 120 ACE 7717202 - v03 - 24062019

Configuration Principle DescriptionC33C33X

AD-3001057-01

Airflue gas connection using concentric pipes to a vertical terminal (roof outshylet) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

C43C43X

MW-2000822-01

Airflue gas connection via concentric pipes to a common pipe supplying severshyal heating applicationsThe common pipe has a roof connection to a vertical terminal that draws in the air required for combustion and discharges the combustion productsUse of CE-certified system

C53

AD-3001058-02

Airflue gas connection via separate pipes lead to two separate terminals One draws in the air required for combustion and the other discharges the combusshytion productsThe outlets may be in different pressure zonesDo not install the air supply and discharge on opposing surfacesUse of CE-certified system

C63C63X

The installer is responsible for installing a CE-certified discharge system that complies with the manufacturers recommendations (temperature flow pressure etc)

The maximum pressure drop in the pipes ΔP must not exceed the values given in the table below The pipes must be certified for this type of use and for a temperature of more than 100 degC The terminal part of the flue gas pipe must be certified as complying with the EN 1856-1 StandardIf installing discharge and intake pipes not supplied by Remeha these must be certified for the intended type of use and their maximum pressure drop must be compliant

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 31

Configuration Principle DescriptionC83C83X

MW-2000823-01

Flue gas connection to a collective flue for sealed boilers The air supply is inshydividual via a terminal coming from outside the buildingA concentric pipe can be used to both supply the boiler with combustion air and connect to the collective flue gas discharge systemThe chimney or flue gas pipe must be suitable for such use and the system CE certified

C93C93X

AD-3001059-01

Airflue gas connection via concentric pipes in an existing chimney The air supshyply in the chimney may be installed via the existing channel or via tubing Flue gas discharge and air intake are via a vertical terminal at the top of the chimney

The air intake and discharge must be close enough to be in the same pressure zoneThe minimum cross-sections are shown in the table belowThe flue system must be suitable for the intended use and the system CE certishyfied

Tab21 Minimum dimensions of the duct or pipe C93 C93X

Version (D) Without air supply With air supplyRigid 80 mm Oslash 130 mm 130 x 130 mm Oslash 140 mm 130 x 130 mmRigid 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmRigid 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmFlexible 80 mm Oslash 130 mm 130 x 130 mm Oslash 145 mm 130 x 130 mmFlexible 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmFlexible 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmConcentric 80125 mm Oslash 145 mm 145 x 145 mm Oslash 145 mm 145 x 145 mmConcentric 100150 mm Oslash 170 mm 170 x 170 mm Oslash 170 mm 170 x 170 mmConcentric 150200 mm Oslash 270 mm 270 x 270 mm - -

ImportantThe duct must comply with the air density requirements of the local regulations

Important

Only original components are authorised for connection to the boiler and for the terminalThe clear section must comply with the standardThe chimney must be swept before installing the discharge flue

CautionEnsure that the flue gas discharge pipes are securely attached to the wall with suitable retaining flanges to prevent any damage and guarantee the tightness of every gasket in the circuit

CautionThe minimum gradient of the condensates discharge pipe from the boiler to the waste water discharge must be 1 cm per linear metre

Fig22 Minimum dimensions of the duct or pipe C93 C93X

AD-3000330-03

D

Oslash

D

5 Installation

32 Gas 120 ACE 7717202 - v03 - 24062019

572 Lengths of the airflue gas pipes

The maximum lengths (Lmax) given in the table are valid for pipes in which the horizontal sections do not exceed one metre in total For each additional metre of horizontal pipe a multiplication coefficient of 12 must be applied when calculating the total length L The total length L is calculated by adding the lengths of the straight airflue gas pipes and the equivalent lengths of the other componentsAlways ensure that L is less than Lmax

ImportantFor the list of flue gas system accessories and the equivalent lengths refer to the current price list

Tab22 Lengths of the airflue gas pipes in metresConfigurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 100 mm 26 24 19

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 110 mm 40 40 40

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 110 mm 295 24 175

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 80125 mm - - -

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 100150 mm 9 8 59

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 80125 mm - - -

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 100150 mm 115 10 94

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 80125 mm over 2x80 mm

- - -

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 100150 mm over 2x100 mm

23 175 Air 11Flue gases 5

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm110 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 110150 mm110 mm

16 132 10

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 33

Configurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 110150 mm110 mm

165 135 94

Tab23 PPS pipe reduction for each element used

Diameter 80 mmSingle

80125 mmConcentric

100 mmSingle

100150 mmConcentric

45deg elbow 12 m 10 m 11 m 10 m87deg elbow 19 m 15 m 20 m 37 mStraight inspection tube 03 m 06 m - 10 m87deg inspection elbow 19 m 20 m 48 m -Inspection T 42 m 27 m 56 m 25 mInspection tube for flexible pipe 03 m - 05 m -

573 Dimensions of flue gas outlet pipe

WarningThe pipes connected to the flue gas adapter must satisfy the following dimension requirements

d1 External dimensions of flue gas outlet pipe

Tab24 Dimensions of pipe d1 (min-max)80 mm 793 - 803 mm100 mm 993 - 1003 mm150 mm 149 - 151 mm

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipe

Tab25 Dimensions of pipe d1 (min-max) D1 (min-max)8080 mm 793 - 803 mm 793 - 803 mm100100 mm 993 - 1003 mm 993 - 1003 mm110110 mm 1093 - 1103 mm 1093 - 1103 mm150150 mm 149 - 151 mm 149 - 151 mm

Fig23 Dimensions of open connection

AD-3001094-01

oslashd1

Fig24 Dimensions of parallel connection

AD-3000963-01

oslashd1 oslashD1

5 Installation

34 Gas 120 ACE 7717202 - v03 - 24062019

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipeL1 Length difference between flue gas outlet pipe and air supply pipe

Tab26 Dimensions of pipe d1 (min-max) D1 (min-max) L1

(1) (min-max)80125 mm 793 - 803 mm 124 - 1255 mm 0 - 15 mm100150 mm 993 - 1003 mm 149 - 151 mm 0 - 15 mm

(1) Shorten the inner pipe if the length difference is too great

574 Connection to the flue gas pipe

At delivery the flue gas outletair supply is fixed inside the boiler

1 Using a long tool unlock and remove the boilers front door2 Remove the boiler outlet

3 Two options for connection to the flue gas pipe

Option Description3a Connection to a vertical flue gas pipe Position the flue gas

outletair supply directly at the boiler outlet3b Connection to a horizontal flue gas pipe Insert an outlet elshy

bow ( not supplied) before the flue gas outletair supply

ImportantLubricate the gaskets on the flue system during assembly

Fig25 Dimensions of concentric connection

AD-3000962-01

oslashd1

L1

oslashD1

Fig26

MW-2000867-02

1

2

1

Fig27

3a 3b

MW-2000868-01

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 35

Fastening the coaxial pipes Fasten the intake pipes with two galvanised Oslash 42 mm screws with a maximum length of 16 mm

CautionBefore fixing the screws make sure that at least 45 cm of pipe is inserted in the gasket of the other pipe

WarningGuarantee a minimum pipe slope towards the boiler of at least 5 cm per metre

Fig28 Fastening the coaxial pipes using screws

BO-0000030

16 mm

5 Installation

36 Gas 120 ACE 7717202 - v03 - 24062019

6 Operation

61 Settings

To configure the installation and use the boiler please refer to the control unit manual

6 Operation

7717202 - v03 - 24062019 Gas 120 ACE 37

7 Maintenance

71 General

We recommend having the boiler inspected and serviced at regular intervals

CautionDo not neglect to service the boiler Contact a qualified professional or take out a maintenance contract for the obligatory annual servicing of the boilerFailure to service the appliance voids the warranty

Danger of electric shockBefore service work is started the boiler has to be de-energised and secured from accidentally being switched back on

CautionHave an inspection carried out and the flues swept at least once a year or more depending on the regulations in force in your country

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

CautionAfter maintenance or repair work check the entire heating system to ensure that there are no leaks

CautionOnly genuine spare parts may be used

72 Specific maintenance operations

721 Cleaning the siphon

1 Remove the flue gas outlet discharge pipe

2 Remove the condensate discharge pipe 3 Remove the screw from the siphon

Fig29

1

MW-2000903-01

Fig30

2

3

MW-2000904-01

7 Maintenance

38 Gas 120 ACE 7717202 - v03 - 24062019

4 Pull the siphon downwards to disengage it and pivot it to release it

5 Flush the siphon 6 Drain the siphon

7 Fill the siphon with clean water up to the mark 8 Lubricate the siphon gasket9 Re-engage the siphon and refit the screw

10 Refit the two pipes

722 Checking the ionisation current

1 Check the ionisation current at full load and at low loadThe value is stable after 1 minute

2 Clean or replace the ionisationignition electrode if the value is lower than 4 microA

Fig31

4

90deg

MW-2000905-01

Fig32

MW-2000843-01

Fig33

MW-2000844-01

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 39

723 Replace the ionizationignition electrode

The ionizationignition electrode must be replaced if

The ionization current is lt 4 microAThe electrode is damaged or worn

1 Remove the plug of the electrode from the igniter

ImportantThe ignition cable is fixed to the electrode and therefore may not be removed

2 Remove the two screws3 Remove the entire component4 Fit the new ionizationignition electrode with a new seal5 Reassemble the unit in the reverse order to disassembly

724 Servicing the forced flue connection pipes

1 Open the inspection hatches or remove the pipes2 Check that the air supply and discharge pipes are not blocked

If necessary clean the discharge pipe3 Check the tightness of the flue gas system4 Replace the tightness gaskets and if necessary any sections of pipe

until tightness is perfect

725 Checking the burner and cleaning the heat exchanger

1 Remove the air inlet flue on the venturi2 Loosen the gland on the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

Fig34

AD-0000088-01

4

1

2

3

Fig35 Removing the fan

AD-3001178-01

1

3

4

2

5

7 Maintenance

40 Gas 120 ACE 7717202 - v03 - 24062019

6 Remove the front plate from the heat exchanger7 Carefully lift the front plate including the burner and fan away from

the heat exchanger

8 Use a vacuum cleaner fitted with a special endpiece (accessory) to clean the top part of the heat exchanger (combustion chamber)

9 Vacuum again without the top brush on the end piece10 Clean the lower section of the heat exchanger with the special

cleaning blade (accessory)11 Check (eg using a mirror) whether any visible contamination has

been left behind If it has remove it with the vacuum cleaner12 Check that the burner cover of the dismantled burner is free from

cracks andor damage If not replace the burnerServicing the burner is usually not necessary it is self-cleaning Use compressed air to carefully blow away any dust

13 Reassemble the unit in reverse order

CautionRemember to reconnect the fan plugCheck that the gasket is correctly positioned between the mixing elbow and the heat exchanger (the gasket must lie absolutely flat in the appropriate groove to ensure that no gas can leak)Tighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the front plate nuts with a torque wrench to the firmness of 10 Nm

14 Open the gas supply and switch the power supply to the boiler back on

Fig36 Removing the front plate fan and burner

AD-3001179-01

6

7

Fig37 Cleaning the heat exchanger

AD-3001180-01

10

8 9

12

11

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 41

726 Checking the non-return valve

1 Remove the air inlet pipe from the venturi2 Unscrew the gland of the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

6 Dismantle the fan7 Remove the fan together with the gas valve unit8 Inspect the non-return valve and replace it in the event of a defect or

damage or if the maintenance kit contains a non-return valve9 Reassemble in the reverse order

CautionRemember to reconnect the fan plugTighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the two fan nuts with a torque wrench to the firmness of 38 Nm

Fig38 Disconnecting the fan

AD-3001178-01

1

3

4

2

5

Fig39 Checking the non-return valve

AD-3001181-01

2x

68

7

9

7 Maintenance

42 Gas 120 ACE 7717202 - v03 - 24062019

8 Decommissioning

81 Decommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

To switch off the boiler temporarily or permanently proceed as follows

1 Switch the boiler off2 Cut the electrical power to the boiler3 Close the gas valve on the boiler4 Drain the central heating system or ensure frost protection5 Close the door of the boiler to prevent air circulating inside it6 Remove the pipe connecting the boiler to the chimney and close the

nozzle with a plug

82 Recommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

Should it prove necessary to carry out the recommissioning of the boiler proceed as follows

1 Re-establish electrical power to the boiler2 Fit and check the flue gas pipe3 Fill the siphon with water4 Fill the central heating system5 Open the boiler gas valve6 Start up the boiler

8 Decommissioning

7717202 - v03 - 24062019 Gas 120 ACE 43

9 Disposal and recyclingCautionOnly qualified professionals are permitted to remove and dispose of the boiler in accordance with local and national regulations

If you need to remove the boiler proceed as follows

1 Switch off the boiler2 Cut the power supply to the boiler3 Close the main gas valve4 Close the water mains5 Close the gas valve on the boiler6 Drain the installation7 Remove the airflue gas pipes8 Disconnect all pipes9 Dismantle the boiler

Fig40

MW-3000179-03

9 Disposal and recycling

44 Gas 120 ACE 7717202 - v03 - 24062019

10 Environmental

101 Energy savings

Energy-saving advice

Do not block ventilation outletsDo not cover the radiators Do not hang curtains in front of the radiatorsInstall reflective panels behind the radiators to prevent heat lossesInsulate the pipes in rooms that are not heated (cellars and lofts)Close the radiators in rooms not in useDo not run hot (or cold) water pointlesslyInstall an energy-saving shower head which can save up to 40 energyTake showers rather than baths A bath consumes twice as much water and energy

102 Room thermostat and settings

Various models of room thermostat are available The type of thermostat used and the parameter selected impact total energy consumption

A modulating regulator which may be combined with thermostatic valves is eco-friendly in terms of energy and offers an excellent level of comfort This combination allows you to set the temperature separately for each room However do not install thermostatic radiator valves in the room in which the room thermostat is locatedComplete opening and closing of the thermostatic radiator valves causes undesirable variations in temperature Therefore these must be openedclosed progressivelySet the room thermostat to a temperature of approximately 20degC to reduce heating costs and energy consumptionLower the thermostat setting to approximately 16degC at night or when you are not at home This reduces heating costs and energy consumptionLower the thermostat setting well before airing the roomsSet the water temperature to a lower level in summer than in winter (eg 60degC and 80degC respectively) when an ONOFF thermostatis usedWhen clock thermostats and programmable thermostats are to be set do not forget to take any holidays and days when no one is at home into account

10 Environmental

7717202 - v03 - 24062019 Gas 120 ACE 45

11 Warranty

111 General

We would like to thank you for buying one of our appliances and for your trust in our productIn order to ensure continued safe and efficient operation we recommend that the product is regularly inspected and maintainedYour installer and our service department can assist with this

112 Terms of warranty

The following provisions do not affect the application in favour of the buyer of the legal provisions with regard to hidden defects that are applicable in the buyers countryThis appliance comes with a warranty that covers all manufacturing faults the warranty period will commence on the date of purchase stated on the installers invoiceThe warranty period is stated in our price listAs a manufacturer we can by no means be held liable if the appliance is used incorrectly is poorly maintained or not maintained at all or is not installed correctly (it is your responsibility to ensure that installation is carried out by a qualified installer)In particular we cannot be held liable for material damage intangible losses or physical injury resulting from an installation that does not comply with

Legal or regulatory requirements or provisions laid down by the local authoritiesNational or local regulations and special provisions relating to the installationOur manuals and installation instructions in particular in terms of regular maintenance of the appliances

Our warranty is limited to the replacement or repair of the parts found to be defective by our technical services team excluding labour transfer and transport costsOur warranty does not cover replacement or repair costs for parts that may become defective due to normal wear incorrect usage the intervention of unqualified third parties inadequate or insufficient supervision or maintenance a mains supply that is not appropriate or the use of unsuitable or poor quality fuelSmaller parts such as motors pumps electrical valves etc are guaranteed only if these parts have never been dismantledThe rights established in European Directive 9944EEC implemented by legal decree No 24 of 2 February 2002 and published in Official Journal No 57 of 8 March 2002 remain in force

11 Warranty

46 Gas 120 ACE 7717202 - v03 - 24062019

12 Spare parts

121 General

If inspection or maintenance work bring to light the need to replace a component in the boilerProvide the reference number given in the spare parts list when ordering a spare part

CautionOnly genuine spare parts may be used

122 Spare parts lists

1221 Exchanger

Fig41

MW-6000743-01

811x

7

7

4

2

16

3

10

119

65

1

13

12

18

14

19

15

18

17

Tab27

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

1 7699615 Complete exchanger x 1 7699614 Complete exchanger x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 47

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

2 S101564 Exchanger front plate x x x3 S54731 Exchanger inspection hatch insulation x x x4 S57241 Exchanger inspection hatch gasket x x x5 S100052 M4x10 self-locking screw (x20) x x x6 S54754 FURQ65 burner x 6 S57477 FURQ85 burner x x7 7623837 Set of 10 k NTC sensors x x x8 S54755 M6 nut (x20) x x x9 7659755 M4x10 screw (x10) x x x10 S53489 Electrode gasket (x10) x x x11 7692359 Ignition electrode x x x12 7631936 Flue gas flow pipe diameter 100 mm x x x13 7624643 NTC 2x20 k flue gas sensor with gasket x x x14 7624619 Ignition transformer x x x15 S56987 ZP M6x16 screw (x10) x x x16 7616253 Valve with support x x x17 7680596 Exchanger bracket x 17 7673616 Exchanger bracket x x18 7701752 Gasket diameter 100 mm (x5) x x x19 7632708 Earth electric clip (x2) x x x

1222 Gas circuit

Fig42

MW-6000744-01

3

2

5

6

9

4

8

10

7

12

11

1

14

13

13

12 Spare parts

48 Gas 120 ACE 7717202 - v03 - 24062019

Tab28Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 S101543 Silencer x 1 S101520 Silencer x 1 S101578 Silencer x2 S54777 Venturi gasket (x5) x 2 S59215 Gas valve-venturi gasket (x5) x 2 S101593 Gaskets (kit) x3 S101726 Fan RG 1481200-3633 x x 3 S100036 Fan RG 148 1200-3633-010202 x4 S101596 Gas valve VK4115v1386 x 4 S101597 Gas valve VK4115vb1012 x 4 S101510 Gas valve GB-ND 057 XP x5 S54766 Venturi x 5 S57488 Venturi x 5 S101595 Venturi VMS 45900450-010 x6 S59215 Gas valve-venturi gasket (x5) x x 7 S57827 Gas valve unit flange x8 S57828 268x22x25 O-ring (x5) x9 S101631 Diaphragm x10 7616249 Flue gas sensor cap (5x) x x x11 S56155 238x177x2 gasket (x20) x x x12 95760050 C HC M4-12 88 ZN3 screw x x x13 S48512 M5-10 screw (x10) x x x14 S101590 Silencer retaining clip x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 49

1223 Hydraulic circuit

Fig43

MW-6000745-01

1

14

6

9

11

8

12

5

37

9

10

2

4

13

Tab29Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7680598 Complete flow pipe x 1 7670807 Complete flow pipe x x2 7672557 Complete return pipe x x x3 7674076 Complete gas pipe x 3 7680434 Complete gas pipe x 3 7670720 Complete gas pipe x4 7698560 HUBA G38 pressure gauge x x x5 94994712 PVC pipe diameter 16x12 x x x6 7699357 Water deflector diameter 100 mm x x x7 94902073 Drain valve 12 x x x8 94918138 Air vent x x x9 95013064 44x32x2 mm green gasket x x x10 95013060 24x17x2 mm green gasket x x 10 95013062 30x21x12 mm green gasket x11 7692329 Condensate hose x x x13 7706103 Assembled siphon height 160 mm x 13 7706038 Assembled siphon height 250 mm x x14 7103731 Condensate drain pan gasket x x x

12 Spare parts

50 Gas 120 ACE 7717202 - v03 - 24062019

1224 Boiler body

Fig44

MW-6000746-01

2

2

1

6

3

34

5

4

Tab30Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7686377 Assembled frame x 1 7686139 Assembled frame x x2 7679958 117x34 handle diameter 65 mm x x x3 7676037 Wheel x x x4 7688301 Frame lateral gasket x 4 7688008 Frame lateral gasket x x5 7688353 Front panel gasket x 5 7688007 Front panel gasket x x6 7693874 R4-05 front panel lock x x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 51

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

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F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

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EST Systems Oy

Kujamatintie 16

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Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

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F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 12: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

Type of flue gas connection Chimney

B23B23PB33

Forced flue

C13C13XC33C33XC43C43XC53C63C63XC83C83XC93C93X

315 Factory test

Before leaving the factory each boiler is optimally set and tested for

Electrical safetySettings (CO2)Water tightnessGas tightnessParameter setting

32 Technical data

Tab3 GeneralGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Nominal heat output (Pn)Central heating operation (80 degC60 degC)

minndashmax kW 120 - 615 141 - 842 189 - 1039

Nominal heat output (Pn)Central heating operation (50 degC30 degC)

minndashmax kW 135 - 650 158 - 895 212 - 1097

Nominal input power (Qn)Heating mode (Hi)

minndashmax kW 122 - 620 146 - 860 196 - 1070

Nominal input power (Qn)Heating operation (Hi) G31 (propane)

minndashmax kW 122 - 620 221 - 860 212 - 1070

Nominal input power (Qn)Central heating operation (Hs)

minndashmax kW 137 - 689 162 - 955 217 - 1189

Full load heating mode efficiency (Hi) (8060 degC) (9242EEC)

992 979 971

Full load heating mode efficiency (Hi) (50 degC30 degC)

1046 1041 1025

Part load heating mode efficiency (9242EEC) (return temperature 30 degC)

1104 1081 108

Tab4 Gas and flue gas valuesGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115G20 gas consumption (H gas)(1) minndashmax m3h 13 - 66 15 - 91 20 - 117Gas consumption G31 (propane)(1)

minndashmax m3h 05 - 25 09 - 35 09 - 45

3 Technical specifications

12 Gas 120 ACE 7717202 - v03 - 24062019

Gas 120 ACE Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

Gas resistance G20 (H gas)(2) max mbar 20 25 30BREAM NOx mgkWh 32 29 35Flue gas quantity minndashmax m3h 18 - 90 22 - 125 30 - 160Flue gas temperature minndashmax degC 30 - 120 30 - 120 30 - 120Maximum counter pressure (Pn) Pa 100 160 220

(1) Gas consumption based on lower heating value in standardised conditions T=28815 K p=101325 mbar Gag 3033 G25 2925 G31 8800 MJm3

(2) Gas resistance between boiler connection and measurement point on the gas valve unit

Tab5Gas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Gas inlet pressure G20 (H gas) minndashmax mbar 17 - 25 17 - 25 17 - 25G30G31 gas inlet pressure (ButanePropane) minndashmax mbar 37 - 50 37 - 50 37 - 50G31 gas inlet pressure (Propane) minndashmax mbar 37 - 50 37 - 50 37 - 50

Tab6 Central heating circuit dataGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Water content l 71 101 101Water operating pressure min bar 08 08 08Water operating pressure (MOP) max bar 40 40 40Water temperature max degC 110 110 110Operating temperature max degC 90 90 90Pressure drop secondary circuit (ΔT = 20 K) mWC 17 16 26Maximum permitted temperature difference(1) max degC 40(1) 40(1) 35(1)

(1) with a maximum flow temperature of 80 degC

Tab7 Electrical dataGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Supply voltage (AC) V 230 230 230Power consumption ndash full load max W 92 124 180Power consumption - low load max W 25 24 344Power consumption ndash standby max W 6 5 9Electrical protection rating IP X1B X1B X1BFuses Main A 10 10 10

Tab8 Other dataGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Total weight (empty) kg 98 109 109Average acoustic level at a distance of one meshytre from the boiler

dB(A) 40 45 45

SeeThe back cover for contact details

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 13

321 ErP technical parameters

Tab9 Technical parameters for boiler space heatersProduct name Gas 120 ACE

- 65Gas 120 ACE - 90

Gas 120 ACE - 115

Condensing boiler Yes Yes YesLow-temperature boiler(1) No No NoB1 boiler No No NoCogeneration space heater No No NoCombination heater No No NoRated heat output Prated kW 62 84 104

Useful heat output at rated heat output and high temperature regime(2)

P4 kW 615 842 1039

Useful heat output at 30 of rated heat output and low temperature regime(1)

P1 kW 205 279 347

Seasonal space heating energy efficiency ƞs 94 - -Useful efficiency at rated heat output and high temperature regime(2)

ƞ4 894 882 875

Useful efficiency at 30 of rated heat output and low temperature regime(1)

ƞ1 995 974 973

Auxiliary electricity consumption Full load elmax kW 0092 0124 0180Part load elmin kW 0025 0024 0034Stand-by PSB kW 0006 0005 0009

Other specifications Standby heat loss Pstby kW 0114 0119 0119Ignition burner power consumption Pign kW - - -Annual energy consumption QHE GJ 190 - -Sound power level indoors LWA dB 55 61 60Emissions of nitrogen oxides NOx mgkWh 29 41 41(1) Low temperature means for condensing boilers 30degC for low temperature boilers 37degC and for other heaters 50degC return temperature

(at heater inlet)(2) High temperature regime means 60 degC return temperature at heater inlet and 80 degC feed temperature at heater outlet

SeeThe back cover for contact details

322 Circulating pump (not provided)

The boiler is supplied without a circulating pump Take the boiler pressure drop and system pressure drop into account when selecting a pump

CautionThe maximum output of a pump that can be connected is 200 W Above this use an auxiliary relay adapted to the pump output

If possible install the pump in direct connection to the boiler on the return circuit

For more information see

Circulating pump

The maximum difference in temperature between the flow water and the return water and the speed at which the boiler temperature increases are restricted by the boilers control system

3 Technical specifications

14 Gas 120 ACE 7717202 - v03 - 24062019

Tab10 Minimum flow to be guaranteedMinimum flow to be guaranteed in the boiler Unit Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Minimum flow rate litreshour 290 340 455

A Dynamic head in mWcB Water flow rate (m3h)C Pressure drops

ΔT Maximum temperature difference between the flow water and the return water in the boiler

A Dynamic head in mWcB Water flow rate (m3h)C Pressure drops

ΔT Maximum temperature difference between the flow water and the return water in the boiler

A Dynamic head in mWcB Water flow rate (m3h)C Pressure drops

ΔT Maximum temperature difference between the flow water and the return water in the boiler

323 Sensor specifications

Outside temperature sensor specifications

Tab11 Outside temperature sensorTemperature degC -20 -16 -12 -8 -4 0 4 8 12 16 20 24Resistance Ω

(Ohm)2392 2088 1811 1562 1342 1149 984 842 720 616 528 454

Fig2 Pressure drops for Gas 120 ACE - 65

MW-2000671-3

T=20KT=40K

175

Fig3 Pressure drops for Gas 120 ACE - 90

MW-2000673-3

T=20KT=40K

362

Fig4 Pressure drops for Gas 120 ACE - 115

MW-2000674-3

T=20KT=35K

447

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 15

Boiler sensor return sensor

Tab12 Boiler sensor return sensorTemperature in degC

-20 -10 0 10 20 25 30 40 50 60 70 80 90 100 110

Resistance in Ω

98932 58879 36129 22804 14773 10000 9804 6652 4607 3252 2337 1707 1266 952 726

Circuit flow sensor domestic hot water sensor and system sensor

Tab13 Circuit flow sensor domestic hot water sensor and system sensorTemperature in degC 0 10 20 25 30 40 50 60 70 80 90Resistance in Ω 32014 19691 12474 10000 8080 5372 3661 2535 1794 1290 941

Specifications of the boiler flue gas sensor

Tab14 Boiler flue gas sensorTemperature degC 0 10 20 30 40 50 60 70 80 90 100Resistance Ohm 66000 40000 20000 16100 10600 7160 4940 3480 2490 1810 1340

33 Dimensions and connections

Fig5

MW-2000684-03

A

D

E

FG

BC

600 605150

92

132

240

141

418

5

2

34

107

105

95

100

1

255145

1 Heating circuit flow (R114)2 Gas inlet (G34)3 Heating circuit return (R114)

4 Condensate discharge (DN22)5 Flue gas pipe

Tab15 Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 1155 Diameter 100150 mm Diameter 100150 mm Diameter 100150 mmA (mm) 1340 1562 1562B (mm) 1164 1386 1386C (mm) 1082 1304 1304D (mm) 971 1193 1193

3 Technical specifications

16 Gas 120 ACE 7717202 - v03 - 24062019

Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 115E (mm) 410 632 632F (mm) 87 303 303G (mm) 128 350 350

34 Electrical diagram

341 Electrical diagram of boiler

Fig6

CU-GH-08

X3X4X5

X6

X8

1

2

3

1

2

3

X14

X7

X10

X11

X13

X12

1

2

3

4

5

25 A

Nrsquo

1

2

3

4

YE

GY

BR

GR

1

2

3

4

1

2

3

4

1

2

N L

1

2

1

2

OPTION

PRESSURE

SWITCH

MW-2000850-04

230V

1 2 3 4 5 6 7 8 9 10

24V

12 11

BL OR

10 9 8 7 6

GR BK RE YE BL

5 4 3 2 1

OR BK RE YE BL

Lrsquo

BL

GY

GY

GY

BL BR

GY

BL

BR

GY BL

BR

GY

BR

GR BK RE YE BL OR BK RE YE BL

BK

BL

BR

RE

GR

GR

BK

GR

GY

YE

BR

BL

OR

1

2

3

4

5

1

2

3

RE

BK

GR

BR

BK

BL

GR

1

2

BR

GR

GY

RE BL

BL

BK

BK

BR YE

GR PI

BL

BL

GR

PI

GR

RE

BR

YE

BK

BK

BR

GY

BL

BL

BR

GY

GY

BR

BL BL GY

BR

BL

BR

BK

GYWH

GY

BL

GY

BL

BR

BK

WH

BL

GY

1 12

4

5

2

3

6

7

8

9

10

11

16

17

15

14

13

1 230 V connector connection with control unit2 Mains interference filter3 Earthing of boiler front door4 Return sensor (TR)5 Flow sensor (FTS)6 Flue gas sensor7 Flue gas pressure switch (specific option for the

Netherlands)8 Gas valve unit (GB)9 Igniter (IT)

10 Ionizationignition electrode (E)11 Fan supply12 24 V connector connection with control unit13 Storage information (CSU)14 Pressure sensor (PS)15 Fan control (PWM)16 Light17 Control unit (CU-GH08)BK BlackBL Blue

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 17

BR BrownGY GreenYellowYE YellowOR OrangeGR Green

PI PinkGY GreyRD RedWH White

3 Technical specifications

18 Gas 120 ACE 7717202 - v03 - 24062019

4 Description of the product

41 General description

Gas 120 ACE floor-standing condensing gas boilers have the following characteristics

Low polluting emissionsHigh-efficiency heatingElectronic control panelFlue gas discharge by a forced flue or chimney type connection with bi-flow option

The boilers are perfectly suited to cascade installation

42 Operating principle

421 Gasair setting

The casing fitted to the boiler is also used as an air box Air is drawn in by the fan and gas injected into the Venturi by the fan intake The fan speed is modulated according to the settings the heat demand and the actual temperatures measured by the temperature sensors The gas and air are mixed in the Venturi The gasair ratio command function accurately adjusts the quantities of gas and air required This provides optimum combustion over the entire output range The gasair mixture is sent to the burner located upstream of the heat exchanger

422 Settings and safety devices

ImportantThe settings and safety devices are only operational if the boiler is powered up

Tab16 Description of the safety devicesDevice DescriptionNTC flue gas sensor The control panel blocks the gas supply to the burner in the event of overheatingFlame detector by ionisation The boiler is put into safety lock-down in the event of gas shortage or incomplete cross-

lighting on the burnerHydraulic pressure switch When the pressure switch detects a pressure lower than 08 bar (008 MPa) a warning

message is displayed without stopping the circulating pumpPost-circulating pump After the burner stops depending on the room thermostat setting and if in heating

mode the circulating pump runs for a further 3 minutesFrost protection device When the flow temperature is lower than 5 degC the burner starts up and runs until the

flow temperature reaches 15 degC This device runs under the following conditions

The boiler is switched onThe gas supply is workingThe pressure in the system is higher than 05 bar (005 MPa)

Anti-blocking of the pump If there are no heating or domestic hot water requirements for 24 consecutive hours the pumps start up automatically and run for 10 seconds

Anticipatory start-up of the circulatshying pumps

In heating mode only the appliance can start up the circulating pumps before burner igshynition The duration and activation of anticipatory start-up depends on the installation reshyquirements and the operating temperatures The duration of anticipatory start-up of the circulating pumps therefore varies from a few seconds to several minutes

4 Description of the product

7717202 - v03 - 24062019 Gas 120 ACE 19

43 Main boiler components

1 Control unit2 Flow sensor3 Light4 Ignitionionization electrode5 Non-return valve6 Gas valve7 Heat exchanger (heating circuit)8 Return sensor9 Pressure gauge sensor

10 CU-GH-08 PCB housing11 Siphon12 Flue gas circuit13 Intake silencer14 Venturi15 Flue gas sensor16 Fan17 Automatic air vent18 Flue gas measuring point19 Combustion air measuring point20 Flue gas outletair supply

44 PCBs

441 Description of the CU-GH-08 PCB

This PCB controls the core boiler components sensors actuators and gas valveThis PCB is factory-fitted and fully cabled and does not require any operationThe sensors valves circulating pumps etc are connected at the control unit

45 Standard delivery

The Gas 120 ACE boiler comes in 2 packages including

Tab17 Package contentsPackage ContentPackage 1 A floor-standing gas boiler

A flue system outlet with a measuring point (stored in the boiler)An outdoor temperature sensorA data plateAn installation and service manual

Package 2 A control unitTwo control unit mounting bolts on the boilerA user manual

46 Accessories amp options

A detailed list of accessories and options can be found in our catalogue

Fig7

MW-2000670-02

16

7 13

12

11

10

19

18

20

17

14

15

6

5

2

9

4

3

1

8

4 Description of the product

20 Gas 120 ACE 7717202 - v03 - 24062019

5 Installation

51 Installation regulations

CautionInstallation of the boiler must be done by a qualified professional in accordance with prevailing local and national regulations

CautionA disconnection device must be fitted to the permanent pipes in accordance with the installation rules

CautionRespect the maximum water inlet pressure to ensure correct operation of the appliance referring to the Technical Specifications chapter

52 Choice of the location

Decide on the ideal position for installation bearing in mind any legal directives and the space required by the appliance

Install the boiler on a solid stable structure capable of bearing the weight of the appliance when full of water and fully equippedWhen choosing the position for installation of the boiler bear in mind the positions authorised for the combustion gas discharge outlets and the air intake ventDo not install the boiler near any heat sources

521 Data plate

The data plate is located on the back of the boilerThe data plate provides important information regarding the appliance

Serial numberModelGas categoryCN1CN2etc

Once installation is complete the second data plate supplied in the documentation bag can be affixed to a more visible part of the boilerIf the boiler is equipped with a hydraulic kit (low-loss header or plate heat exchanger) affix the data plate to the side of the boiler

522 Space required - Boiler ventilation

Decide on the ideal position for installation bearing in mind any legal directives and the space required by the appliance

Install the boiler on a solid stable structure capable of bearing the weight of the appliance when full of water and fully equippedWhen choosing the position for installation of the boiler bear in mind the positions authorised for the combustion gas discharge outlets and the air intake ventDo not install the boiler near any heat sources

Fig8

MW-6000735-01

Made in France0085

CN1 17

CN2 7

230 V 50 Hz

B23(P) - B33 - C13(X) - C33(X) - C43(X) - C53 - C63(X) - C83(X) - C93(X)

PMS= 4bar - 04MPa

Pn =

8060 degC

5030 degC

NOx class 6 (Nox lt 56 mgkWh)

Qn =Hi kW

4030 degC

189-1039

196-1070

212-1097

180W

0085CT009

Hs (G20) 217-1189

IP21Imax= 10A

Tmax= 90degC

FR

LT

IT

AT

CZ

PL

II2Esi3BP

II2H3BP

II2H3BP

II2H3BP

II2H3P

II2H3BP

II2H3BP

II2ELw3BP

G20-20mbar G25-25mbar G30G31-303750mbar

G20-20mbar G30G31 - 30mbar

G20-20mbar G30G31 - 303750 mbar

G20-20mbar G30G31 - 3037mbar

G20-20mbar G31 - 30mbar

G20-20mbar G30G31 - 50mbar

G20-20mbar G30G31-303750mbar

G20-20mbar G27-20mbar G3031-37mbar

kW

Art Nr SN A0000YYWW000

kW

kW

kW

kW

kW

ESGR PT

LU RO EE

YY-WW

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 21

Keep the boiler accessible at all timesPlace the boiler on a base to make it easier to clean the roomThe boiler can be located along a partition on one of its sides provided there is a 500 mm space on the opposite sideAllow enough space around the boiler to facilitate accessibility and maintenance The minimum recommended dimensions are shown in the illustrationMake sure there is a connection to the water drainage system close to the boiler to discharge any condensates

ImportantTo fit the boiler position the pallet with the package 25 m in front of the desired location for the installation This distance is required to allow the boiler to be removed from its pallet

Tab18Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 115

A (mm) 500 500 500B (mm) 1082 1304 1304

To allow the intake of combustion air sufficient ventilation must be provided in the boiler room the cross section and position of which must satisfy the regulations in force

Great Britain BS 5440 Part 1 and Part 2

For boilers with a nominal output of more than 70 kW Upper and lower air vents comshypulsory

BS 6644 and IGEMUP-10

Caution

Avoid any low points in the flue gas and condensate discharge circuit in order to prevent any accumulation of condensatesDo not block the air inlets in the room or the combustion product evacuation or condensation water flow pipes (even partially)

If the boiler is installed in closed premises respect the minimum dimensions given in the diagram below Also allow for openings to obviate the following hazards

Accumulation of gasOverheating of the premisesGreat Britain Minimum cross section of openings see BS 5440 Part 1 and Part 2 and BS 6644

523 Ventilation

To allow the intake of combustion air sufficient ventilation must be provided in the boiler room for which the cross section and position must satisfy the regulations in force in the country in which the boiler is installed

Great Britain BS 5440 Part 1 and Part 2

For boilers with a nominal output of more than 70 kW Upper and lower air vents comshypulsory

BS 6644 and IGEMUP-10

Fig9

MW-2000679-03

500

B

1100

AS1

S2

260

580

350

600

500

5 Installation

22 Gas 120 ACE 7717202 - v03 - 24062019

If the boiler is installed in closed premises respect the minimum dimensions given in the diagram below Also allow for openings to obviate the following hazards

Accumulation of gasOverheating of the premisesGreat Britain Minimum cross section of openings see BS 5440 Part 1 and Part 2 and BS 6644

524 Fitting the outdoor sensor

Plugs diameter 4 mmdrill diameter 6 mm

1 Choose a recommended location for the outdoor sensor2 Put the 2 plugs in place delivered with the sensor3 Secure the sensor using the screws provided (diameter 4 mm)4 Connect the cable to the outdoor temperature sensor

Recommended positions

Place the outside sensor in a position that covers the following characteristics

On a faccedilade of the area to be heated on the north if possibleHalf way up the wall of the area to be heatedUnder the influence of changes in the weatherProtected from direct sunlightEasy to access

Fig11

MW-8800N001-3

2

1

2

11

2

H

12 H (min 25 m)

12 H (min 25 m)

12 Z

H

Z

1 Optimum location2 Possible position

H Inhabited height controlled by the sensorZ Inhabited area controlled by the sensor

Positions to be avoided

Avoid placing the outside sensor in a position with the following characteristics

Masked by part of the building (balcony roof etc)Close to a disruptive heat source (sun chimney ventilation grid etc)

Fig10

MW-8800N003-6

23

4

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 23

Fig12

MW-3000014-2

53 Transport

Transport the boiler pallet with a manual or electric pallet truck

54 Unpacking and preparing the boiler

Caution

Wear gloves to handle the boilerTransport the boiler pallet with a manual or electric pallet truckUse carrying bars (not provided) to move the boiler

ImportantTo fit the boiler position the pallet with the package 25 m in front of the desired location for the installation This distance is required to allow the boiler to be removed from its pallet

1 Cut the packaging2 Remove the packaging from the boiler but leave the boiler on the

shipping pallet

ImportantThe documentation bag (user manual + accessories) is contained in the protective block

Fig13

MW-6000736-01

Manual

11

12

5 Installation

24 Gas 120 ACE 7717202 - v03 - 24062019

3 Using a long tool unlock and remove the boilers front door Disconnect the earth wire

4 Remove the mounting bolts from the unloading ramps and the boiler (4 bolts at the rear and 4 bolts at the front)

5 Pull out the unloading ramps and turn them over6 Align the ramps with the rear castor wheels on the boiler

Fig14

MW-6000761-01

3

3

Fig15

MW-6000737-01

4

4

Fig16

MW-6000738-01

5

5

6

6

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 25

7 Lock the ramps correctly onto the pallet8 Screw the unloading ramps onto the pallet9 Fold down the ends of the ramp so that they rest on the ground

10 Tilt the boiler backwards until it is resting on the castor wheels then remove it from the pallet

11 Recycle the pallet

Fig17

MW-6000770-01

9

9

8

7

Fig18

MW-6000739-02

600

350

11

10

550

5 Installation

26 Gas 120 ACE 7717202 - v03 - 24062019

12 Level the boiler using the adjustable feet(1) Factory setting 30 mm adjustment range 20 to 40 mm

CautionThe rear castor wheels must no longer be in contact with the ground

55 Hydraulic connections

551 Water treatment

In many cases the boiler and the heating system can be filled with mains water without treating the water

CautionDo not add any chemical products to the heating water without first consulting a water treatment specialist For example antifreeze water softeners products to increase or reduce the pH value chemical additives andor inhibitors These may cause faults in the boiler and damage the heat exchanger

Important

Flush the installation with at least 3 times the volume of water contained in the heating systemFlush the DHW circuit with at least 20 times its volume of water

The water in the installation must comply with following specifications

Tab19 Installation water specifications Initial commissioning Concentration (top up)Degree of acidity (untreated water) pH 65 - 85 65 - 85

Degree of acidity (treated washyter) pH 70 - 90 70 - 90

Conductivity at 25degC μScm le 500 le 500Chlorides mglitre le 50 le 50Other components mglitre lt 1 lt 1

Total water hardnessdegf 5 - 35 le 15degdH 28 - 200 le 85mmollitre(1) 05 - 35 lt 15

(1) Flow temperature less than 90degC mdash Maximum hardness 150 mmoll

Fig19

MW-6000773-01

(1)

12

12

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 27

ImportantIf water treatment proves necessary Remeha recommends the following manufacturers

CillitClimalifeFernoxPermoSentinel

552 Flushing new installations and installations less than 6 months old

Before filling the heating installation it is essential to remove any debris (copper caulking soldering flux) from the installation

1 Clean the installation with a powerful universal cleaner2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

553 Flushing an existing installation

Before filling the heating installation it is essential to remove any sludge deposits which have accumulated in the heating circuit over the years

1 Remove any sludge from the installation2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

554 Connecting the heating circuit

ImportantAbide by the information shown in the hydraulic diagrams

The pipes are not provided

Caution

The heating pipe must be mounted in accordance with the provisions applicableIf installing stop valves position the filldrain valve and the expansion vessel between the stop valves and the boilerAlways install a safety valve calibrated to a maximum of 4 bar on the heating circuit The safety valve can be connected to a venting pot The safety valve must not be used to drain the heating circuitIt is recommended to install a sludge collector on all installations

SeeIf fitting with a hydraulic kit (low-loss header or plate heat exchanger) refer to the kit manual

555 Connecting the condensate discharge pipe

Use a neutralisation station to achieve a pH value of more than 65 (in accordance with prevailing regulations)Discharge the condensates directly into the mains drainage system via a siphon In view of the acidity level (pH 25 to 3) only condensate discharge pipes made from compatible plastic should be used

5 Installation

28 Gas 120 ACE 7717202 - v03 - 24062019

The condensate discharge pipe is located at the rear of the boiler

Do not block the condensate discharge pipeTilt the discharge pipe by at least 30 mm per metre and make sure there are no low points that could cause the accumulation of water or deposits Maximum horizontal length 5 metresDo not drain condensation water into a roof gutterConnect the condensate discharge pipe in accordance with prevailing standardsIt is preferable to use the condensate neutralisers recommended by the manufacturer of the boiler

1 Connect a plastic hose to the condensate discharge outlet (DN 22)2 Insert the other end of the hose into a waste water discharge outlet

556 Filling the siphon

DangerIf operating with the siphon empty combustion products will escape into the premises in which the boiler is installed

1 Pour water into the flue gas pipe (central pipe) until it flows out of the condensate discharge pipe

56 Gas connection

Danger

Close the main gas valve before starting work on the gas pipesThe diameters of the pipes must be defined in accordance with the standards in force in your countryConnect the gas pipe in accordance with prevailing standards and regulationsEnsure that there is no dust in the gas pipe

The gas pipes are not providedIn old gas networks we recommend fitting a gas filter with a low pressure drop upstream of this point

1 Clean the gas supply pipe2 Remove the anti-dust plug located on the boilers gas inlet3 Mount a gas stop valve (not provided) on the boilers gas inlet4 Connect the gas inlet pipe to the gas stop valve

Fig20

MW-2000825-01

pH gt 65

Oslash32A

Fig21

MW-6000742-02

1

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 29

5 Close the gas supply valve before testing the pressure on the gas supply pipe to avoid damage caused by excessive pressure on the gas regulator Decompress before reopening the valve

561 Gas supply

Before mounting check that the gas meter has sufficient capacity (in m3h) To do this you should bear in mind the consumption of all appliances If the capacity of the gas meter is too low inform the gas supply companyThe boilers are preset to run on G20 gas (gas H) and can be adapted to run with the following gases

G31 (gas P)G3031 (gas BP)

ImportantTo use a different type of gas contact an approved assistance service

57 Air supplyflue gas outlet connections

571 Classification

The discharge and intake pipes must be certified for the appropriate configuration and must meet the requirements of the prevailing installation standards in the country

Tab20 Configurations and recommendations for the flue systemConfiguration Principle DescriptionB23B23P

AD-3001055-01

Connection to a chimney using a CE connection kit (single pipe in a flue comshybustion air taken from the boiler room)Follow the connection instructions and adhere to the recommended maximum pipe lengthsComply with the applicable regulations governing ventilation and cross-secshytions for room aeration vents

B33

MW-5000925-1

Room-ventilated version

Without down-draught diverterJoint flue gas discharge via the roof with guaranteed natural draft (at all times underpressure in the joint discharge duct)Flue gas discharge rinsed with air air from the installation area (special conshystruction)The IP rating of the boiler is lowered to IP20

C13C13X

AD-3001056-01

Airflue gas connection using concentric pipes to a horizontal terminal (so-called forced flue) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

5 Installation

30 Gas 120 ACE 7717202 - v03 - 24062019

Configuration Principle DescriptionC33C33X

AD-3001057-01

Airflue gas connection using concentric pipes to a vertical terminal (roof outshylet) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

C43C43X

MW-2000822-01

Airflue gas connection via concentric pipes to a common pipe supplying severshyal heating applicationsThe common pipe has a roof connection to a vertical terminal that draws in the air required for combustion and discharges the combustion productsUse of CE-certified system

C53

AD-3001058-02

Airflue gas connection via separate pipes lead to two separate terminals One draws in the air required for combustion and the other discharges the combusshytion productsThe outlets may be in different pressure zonesDo not install the air supply and discharge on opposing surfacesUse of CE-certified system

C63C63X

The installer is responsible for installing a CE-certified discharge system that complies with the manufacturers recommendations (temperature flow pressure etc)

The maximum pressure drop in the pipes ΔP must not exceed the values given in the table below The pipes must be certified for this type of use and for a temperature of more than 100 degC The terminal part of the flue gas pipe must be certified as complying with the EN 1856-1 StandardIf installing discharge and intake pipes not supplied by Remeha these must be certified for the intended type of use and their maximum pressure drop must be compliant

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 31

Configuration Principle DescriptionC83C83X

MW-2000823-01

Flue gas connection to a collective flue for sealed boilers The air supply is inshydividual via a terminal coming from outside the buildingA concentric pipe can be used to both supply the boiler with combustion air and connect to the collective flue gas discharge systemThe chimney or flue gas pipe must be suitable for such use and the system CE certified

C93C93X

AD-3001059-01

Airflue gas connection via concentric pipes in an existing chimney The air supshyply in the chimney may be installed via the existing channel or via tubing Flue gas discharge and air intake are via a vertical terminal at the top of the chimney

The air intake and discharge must be close enough to be in the same pressure zoneThe minimum cross-sections are shown in the table belowThe flue system must be suitable for the intended use and the system CE certishyfied

Tab21 Minimum dimensions of the duct or pipe C93 C93X

Version (D) Without air supply With air supplyRigid 80 mm Oslash 130 mm 130 x 130 mm Oslash 140 mm 130 x 130 mmRigid 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmRigid 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmFlexible 80 mm Oslash 130 mm 130 x 130 mm Oslash 145 mm 130 x 130 mmFlexible 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmFlexible 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmConcentric 80125 mm Oslash 145 mm 145 x 145 mm Oslash 145 mm 145 x 145 mmConcentric 100150 mm Oslash 170 mm 170 x 170 mm Oslash 170 mm 170 x 170 mmConcentric 150200 mm Oslash 270 mm 270 x 270 mm - -

ImportantThe duct must comply with the air density requirements of the local regulations

Important

Only original components are authorised for connection to the boiler and for the terminalThe clear section must comply with the standardThe chimney must be swept before installing the discharge flue

CautionEnsure that the flue gas discharge pipes are securely attached to the wall with suitable retaining flanges to prevent any damage and guarantee the tightness of every gasket in the circuit

CautionThe minimum gradient of the condensates discharge pipe from the boiler to the waste water discharge must be 1 cm per linear metre

Fig22 Minimum dimensions of the duct or pipe C93 C93X

AD-3000330-03

D

Oslash

D

5 Installation

32 Gas 120 ACE 7717202 - v03 - 24062019

572 Lengths of the airflue gas pipes

The maximum lengths (Lmax) given in the table are valid for pipes in which the horizontal sections do not exceed one metre in total For each additional metre of horizontal pipe a multiplication coefficient of 12 must be applied when calculating the total length L The total length L is calculated by adding the lengths of the straight airflue gas pipes and the equivalent lengths of the other componentsAlways ensure that L is less than Lmax

ImportantFor the list of flue gas system accessories and the equivalent lengths refer to the current price list

Tab22 Lengths of the airflue gas pipes in metresConfigurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 100 mm 26 24 19

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 110 mm 40 40 40

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 110 mm 295 24 175

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 80125 mm - - -

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 100150 mm 9 8 59

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 80125 mm - - -

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 100150 mm 115 10 94

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 80125 mm over 2x80 mm

- - -

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 100150 mm over 2x100 mm

23 175 Air 11Flue gases 5

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm110 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 110150 mm110 mm

16 132 10

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 33

Configurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 110150 mm110 mm

165 135 94

Tab23 PPS pipe reduction for each element used

Diameter 80 mmSingle

80125 mmConcentric

100 mmSingle

100150 mmConcentric

45deg elbow 12 m 10 m 11 m 10 m87deg elbow 19 m 15 m 20 m 37 mStraight inspection tube 03 m 06 m - 10 m87deg inspection elbow 19 m 20 m 48 m -Inspection T 42 m 27 m 56 m 25 mInspection tube for flexible pipe 03 m - 05 m -

573 Dimensions of flue gas outlet pipe

WarningThe pipes connected to the flue gas adapter must satisfy the following dimension requirements

d1 External dimensions of flue gas outlet pipe

Tab24 Dimensions of pipe d1 (min-max)80 mm 793 - 803 mm100 mm 993 - 1003 mm150 mm 149 - 151 mm

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipe

Tab25 Dimensions of pipe d1 (min-max) D1 (min-max)8080 mm 793 - 803 mm 793 - 803 mm100100 mm 993 - 1003 mm 993 - 1003 mm110110 mm 1093 - 1103 mm 1093 - 1103 mm150150 mm 149 - 151 mm 149 - 151 mm

Fig23 Dimensions of open connection

AD-3001094-01

oslashd1

Fig24 Dimensions of parallel connection

AD-3000963-01

oslashd1 oslashD1

5 Installation

34 Gas 120 ACE 7717202 - v03 - 24062019

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipeL1 Length difference between flue gas outlet pipe and air supply pipe

Tab26 Dimensions of pipe d1 (min-max) D1 (min-max) L1

(1) (min-max)80125 mm 793 - 803 mm 124 - 1255 mm 0 - 15 mm100150 mm 993 - 1003 mm 149 - 151 mm 0 - 15 mm

(1) Shorten the inner pipe if the length difference is too great

574 Connection to the flue gas pipe

At delivery the flue gas outletair supply is fixed inside the boiler

1 Using a long tool unlock and remove the boilers front door2 Remove the boiler outlet

3 Two options for connection to the flue gas pipe

Option Description3a Connection to a vertical flue gas pipe Position the flue gas

outletair supply directly at the boiler outlet3b Connection to a horizontal flue gas pipe Insert an outlet elshy

bow ( not supplied) before the flue gas outletair supply

ImportantLubricate the gaskets on the flue system during assembly

Fig25 Dimensions of concentric connection

AD-3000962-01

oslashd1

L1

oslashD1

Fig26

MW-2000867-02

1

2

1

Fig27

3a 3b

MW-2000868-01

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 35

Fastening the coaxial pipes Fasten the intake pipes with two galvanised Oslash 42 mm screws with a maximum length of 16 mm

CautionBefore fixing the screws make sure that at least 45 cm of pipe is inserted in the gasket of the other pipe

WarningGuarantee a minimum pipe slope towards the boiler of at least 5 cm per metre

Fig28 Fastening the coaxial pipes using screws

BO-0000030

16 mm

5 Installation

36 Gas 120 ACE 7717202 - v03 - 24062019

6 Operation

61 Settings

To configure the installation and use the boiler please refer to the control unit manual

6 Operation

7717202 - v03 - 24062019 Gas 120 ACE 37

7 Maintenance

71 General

We recommend having the boiler inspected and serviced at regular intervals

CautionDo not neglect to service the boiler Contact a qualified professional or take out a maintenance contract for the obligatory annual servicing of the boilerFailure to service the appliance voids the warranty

Danger of electric shockBefore service work is started the boiler has to be de-energised and secured from accidentally being switched back on

CautionHave an inspection carried out and the flues swept at least once a year or more depending on the regulations in force in your country

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

CautionAfter maintenance or repair work check the entire heating system to ensure that there are no leaks

CautionOnly genuine spare parts may be used

72 Specific maintenance operations

721 Cleaning the siphon

1 Remove the flue gas outlet discharge pipe

2 Remove the condensate discharge pipe 3 Remove the screw from the siphon

Fig29

1

MW-2000903-01

Fig30

2

3

MW-2000904-01

7 Maintenance

38 Gas 120 ACE 7717202 - v03 - 24062019

4 Pull the siphon downwards to disengage it and pivot it to release it

5 Flush the siphon 6 Drain the siphon

7 Fill the siphon with clean water up to the mark 8 Lubricate the siphon gasket9 Re-engage the siphon and refit the screw

10 Refit the two pipes

722 Checking the ionisation current

1 Check the ionisation current at full load and at low loadThe value is stable after 1 minute

2 Clean or replace the ionisationignition electrode if the value is lower than 4 microA

Fig31

4

90deg

MW-2000905-01

Fig32

MW-2000843-01

Fig33

MW-2000844-01

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 39

723 Replace the ionizationignition electrode

The ionizationignition electrode must be replaced if

The ionization current is lt 4 microAThe electrode is damaged or worn

1 Remove the plug of the electrode from the igniter

ImportantThe ignition cable is fixed to the electrode and therefore may not be removed

2 Remove the two screws3 Remove the entire component4 Fit the new ionizationignition electrode with a new seal5 Reassemble the unit in the reverse order to disassembly

724 Servicing the forced flue connection pipes

1 Open the inspection hatches or remove the pipes2 Check that the air supply and discharge pipes are not blocked

If necessary clean the discharge pipe3 Check the tightness of the flue gas system4 Replace the tightness gaskets and if necessary any sections of pipe

until tightness is perfect

725 Checking the burner and cleaning the heat exchanger

1 Remove the air inlet flue on the venturi2 Loosen the gland on the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

Fig34

AD-0000088-01

4

1

2

3

Fig35 Removing the fan

AD-3001178-01

1

3

4

2

5

7 Maintenance

40 Gas 120 ACE 7717202 - v03 - 24062019

6 Remove the front plate from the heat exchanger7 Carefully lift the front plate including the burner and fan away from

the heat exchanger

8 Use a vacuum cleaner fitted with a special endpiece (accessory) to clean the top part of the heat exchanger (combustion chamber)

9 Vacuum again without the top brush on the end piece10 Clean the lower section of the heat exchanger with the special

cleaning blade (accessory)11 Check (eg using a mirror) whether any visible contamination has

been left behind If it has remove it with the vacuum cleaner12 Check that the burner cover of the dismantled burner is free from

cracks andor damage If not replace the burnerServicing the burner is usually not necessary it is self-cleaning Use compressed air to carefully blow away any dust

13 Reassemble the unit in reverse order

CautionRemember to reconnect the fan plugCheck that the gasket is correctly positioned between the mixing elbow and the heat exchanger (the gasket must lie absolutely flat in the appropriate groove to ensure that no gas can leak)Tighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the front plate nuts with a torque wrench to the firmness of 10 Nm

14 Open the gas supply and switch the power supply to the boiler back on

Fig36 Removing the front plate fan and burner

AD-3001179-01

6

7

Fig37 Cleaning the heat exchanger

AD-3001180-01

10

8 9

12

11

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 41

726 Checking the non-return valve

1 Remove the air inlet pipe from the venturi2 Unscrew the gland of the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

6 Dismantle the fan7 Remove the fan together with the gas valve unit8 Inspect the non-return valve and replace it in the event of a defect or

damage or if the maintenance kit contains a non-return valve9 Reassemble in the reverse order

CautionRemember to reconnect the fan plugTighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the two fan nuts with a torque wrench to the firmness of 38 Nm

Fig38 Disconnecting the fan

AD-3001178-01

1

3

4

2

5

Fig39 Checking the non-return valve

AD-3001181-01

2x

68

7

9

7 Maintenance

42 Gas 120 ACE 7717202 - v03 - 24062019

8 Decommissioning

81 Decommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

To switch off the boiler temporarily or permanently proceed as follows

1 Switch the boiler off2 Cut the electrical power to the boiler3 Close the gas valve on the boiler4 Drain the central heating system or ensure frost protection5 Close the door of the boiler to prevent air circulating inside it6 Remove the pipe connecting the boiler to the chimney and close the

nozzle with a plug

82 Recommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

Should it prove necessary to carry out the recommissioning of the boiler proceed as follows

1 Re-establish electrical power to the boiler2 Fit and check the flue gas pipe3 Fill the siphon with water4 Fill the central heating system5 Open the boiler gas valve6 Start up the boiler

8 Decommissioning

7717202 - v03 - 24062019 Gas 120 ACE 43

9 Disposal and recyclingCautionOnly qualified professionals are permitted to remove and dispose of the boiler in accordance with local and national regulations

If you need to remove the boiler proceed as follows

1 Switch off the boiler2 Cut the power supply to the boiler3 Close the main gas valve4 Close the water mains5 Close the gas valve on the boiler6 Drain the installation7 Remove the airflue gas pipes8 Disconnect all pipes9 Dismantle the boiler

Fig40

MW-3000179-03

9 Disposal and recycling

44 Gas 120 ACE 7717202 - v03 - 24062019

10 Environmental

101 Energy savings

Energy-saving advice

Do not block ventilation outletsDo not cover the radiators Do not hang curtains in front of the radiatorsInstall reflective panels behind the radiators to prevent heat lossesInsulate the pipes in rooms that are not heated (cellars and lofts)Close the radiators in rooms not in useDo not run hot (or cold) water pointlesslyInstall an energy-saving shower head which can save up to 40 energyTake showers rather than baths A bath consumes twice as much water and energy

102 Room thermostat and settings

Various models of room thermostat are available The type of thermostat used and the parameter selected impact total energy consumption

A modulating regulator which may be combined with thermostatic valves is eco-friendly in terms of energy and offers an excellent level of comfort This combination allows you to set the temperature separately for each room However do not install thermostatic radiator valves in the room in which the room thermostat is locatedComplete opening and closing of the thermostatic radiator valves causes undesirable variations in temperature Therefore these must be openedclosed progressivelySet the room thermostat to a temperature of approximately 20degC to reduce heating costs and energy consumptionLower the thermostat setting to approximately 16degC at night or when you are not at home This reduces heating costs and energy consumptionLower the thermostat setting well before airing the roomsSet the water temperature to a lower level in summer than in winter (eg 60degC and 80degC respectively) when an ONOFF thermostatis usedWhen clock thermostats and programmable thermostats are to be set do not forget to take any holidays and days when no one is at home into account

10 Environmental

7717202 - v03 - 24062019 Gas 120 ACE 45

11 Warranty

111 General

We would like to thank you for buying one of our appliances and for your trust in our productIn order to ensure continued safe and efficient operation we recommend that the product is regularly inspected and maintainedYour installer and our service department can assist with this

112 Terms of warranty

The following provisions do not affect the application in favour of the buyer of the legal provisions with regard to hidden defects that are applicable in the buyers countryThis appliance comes with a warranty that covers all manufacturing faults the warranty period will commence on the date of purchase stated on the installers invoiceThe warranty period is stated in our price listAs a manufacturer we can by no means be held liable if the appliance is used incorrectly is poorly maintained or not maintained at all or is not installed correctly (it is your responsibility to ensure that installation is carried out by a qualified installer)In particular we cannot be held liable for material damage intangible losses or physical injury resulting from an installation that does not comply with

Legal or regulatory requirements or provisions laid down by the local authoritiesNational or local regulations and special provisions relating to the installationOur manuals and installation instructions in particular in terms of regular maintenance of the appliances

Our warranty is limited to the replacement or repair of the parts found to be defective by our technical services team excluding labour transfer and transport costsOur warranty does not cover replacement or repair costs for parts that may become defective due to normal wear incorrect usage the intervention of unqualified third parties inadequate or insufficient supervision or maintenance a mains supply that is not appropriate or the use of unsuitable or poor quality fuelSmaller parts such as motors pumps electrical valves etc are guaranteed only if these parts have never been dismantledThe rights established in European Directive 9944EEC implemented by legal decree No 24 of 2 February 2002 and published in Official Journal No 57 of 8 March 2002 remain in force

11 Warranty

46 Gas 120 ACE 7717202 - v03 - 24062019

12 Spare parts

121 General

If inspection or maintenance work bring to light the need to replace a component in the boilerProvide the reference number given in the spare parts list when ordering a spare part

CautionOnly genuine spare parts may be used

122 Spare parts lists

1221 Exchanger

Fig41

MW-6000743-01

811x

7

7

4

2

16

3

10

119

65

1

13

12

18

14

19

15

18

17

Tab27

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

1 7699615 Complete exchanger x 1 7699614 Complete exchanger x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 47

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

2 S101564 Exchanger front plate x x x3 S54731 Exchanger inspection hatch insulation x x x4 S57241 Exchanger inspection hatch gasket x x x5 S100052 M4x10 self-locking screw (x20) x x x6 S54754 FURQ65 burner x 6 S57477 FURQ85 burner x x7 7623837 Set of 10 k NTC sensors x x x8 S54755 M6 nut (x20) x x x9 7659755 M4x10 screw (x10) x x x10 S53489 Electrode gasket (x10) x x x11 7692359 Ignition electrode x x x12 7631936 Flue gas flow pipe diameter 100 mm x x x13 7624643 NTC 2x20 k flue gas sensor with gasket x x x14 7624619 Ignition transformer x x x15 S56987 ZP M6x16 screw (x10) x x x16 7616253 Valve with support x x x17 7680596 Exchanger bracket x 17 7673616 Exchanger bracket x x18 7701752 Gasket diameter 100 mm (x5) x x x19 7632708 Earth electric clip (x2) x x x

1222 Gas circuit

Fig42

MW-6000744-01

3

2

5

6

9

4

8

10

7

12

11

1

14

13

13

12 Spare parts

48 Gas 120 ACE 7717202 - v03 - 24062019

Tab28Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 S101543 Silencer x 1 S101520 Silencer x 1 S101578 Silencer x2 S54777 Venturi gasket (x5) x 2 S59215 Gas valve-venturi gasket (x5) x 2 S101593 Gaskets (kit) x3 S101726 Fan RG 1481200-3633 x x 3 S100036 Fan RG 148 1200-3633-010202 x4 S101596 Gas valve VK4115v1386 x 4 S101597 Gas valve VK4115vb1012 x 4 S101510 Gas valve GB-ND 057 XP x5 S54766 Venturi x 5 S57488 Venturi x 5 S101595 Venturi VMS 45900450-010 x6 S59215 Gas valve-venturi gasket (x5) x x 7 S57827 Gas valve unit flange x8 S57828 268x22x25 O-ring (x5) x9 S101631 Diaphragm x10 7616249 Flue gas sensor cap (5x) x x x11 S56155 238x177x2 gasket (x20) x x x12 95760050 C HC M4-12 88 ZN3 screw x x x13 S48512 M5-10 screw (x10) x x x14 S101590 Silencer retaining clip x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 49

1223 Hydraulic circuit

Fig43

MW-6000745-01

1

14

6

9

11

8

12

5

37

9

10

2

4

13

Tab29Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7680598 Complete flow pipe x 1 7670807 Complete flow pipe x x2 7672557 Complete return pipe x x x3 7674076 Complete gas pipe x 3 7680434 Complete gas pipe x 3 7670720 Complete gas pipe x4 7698560 HUBA G38 pressure gauge x x x5 94994712 PVC pipe diameter 16x12 x x x6 7699357 Water deflector diameter 100 mm x x x7 94902073 Drain valve 12 x x x8 94918138 Air vent x x x9 95013064 44x32x2 mm green gasket x x x10 95013060 24x17x2 mm green gasket x x 10 95013062 30x21x12 mm green gasket x11 7692329 Condensate hose x x x13 7706103 Assembled siphon height 160 mm x 13 7706038 Assembled siphon height 250 mm x x14 7103731 Condensate drain pan gasket x x x

12 Spare parts

50 Gas 120 ACE 7717202 - v03 - 24062019

1224 Boiler body

Fig44

MW-6000746-01

2

2

1

6

3

34

5

4

Tab30Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7686377 Assembled frame x 1 7686139 Assembled frame x x2 7679958 117x34 handle diameter 65 mm x x x3 7676037 Wheel x x x4 7688301 Frame lateral gasket x 4 7688008 Frame lateral gasket x x5 7688353 Front panel gasket x 5 7688007 Front panel gasket x x6 7693874 R4-05 front panel lock x x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 51

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

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Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

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F +420 257 912 061

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Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

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F +49 25572 9161 - 102

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Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

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Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

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Kujamatintie 16

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Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

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Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

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F +40 26 4421 175

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Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

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RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

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Remeha Commercial UK

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3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 13: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

Gas 120 ACE Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

Gas resistance G20 (H gas)(2) max mbar 20 25 30BREAM NOx mgkWh 32 29 35Flue gas quantity minndashmax m3h 18 - 90 22 - 125 30 - 160Flue gas temperature minndashmax degC 30 - 120 30 - 120 30 - 120Maximum counter pressure (Pn) Pa 100 160 220

(1) Gas consumption based on lower heating value in standardised conditions T=28815 K p=101325 mbar Gag 3033 G25 2925 G31 8800 MJm3

(2) Gas resistance between boiler connection and measurement point on the gas valve unit

Tab5Gas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Gas inlet pressure G20 (H gas) minndashmax mbar 17 - 25 17 - 25 17 - 25G30G31 gas inlet pressure (ButanePropane) minndashmax mbar 37 - 50 37 - 50 37 - 50G31 gas inlet pressure (Propane) minndashmax mbar 37 - 50 37 - 50 37 - 50

Tab6 Central heating circuit dataGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Water content l 71 101 101Water operating pressure min bar 08 08 08Water operating pressure (MOP) max bar 40 40 40Water temperature max degC 110 110 110Operating temperature max degC 90 90 90Pressure drop secondary circuit (ΔT = 20 K) mWC 17 16 26Maximum permitted temperature difference(1) max degC 40(1) 40(1) 35(1)

(1) with a maximum flow temperature of 80 degC

Tab7 Electrical dataGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Supply voltage (AC) V 230 230 230Power consumption ndash full load max W 92 124 180Power consumption - low load max W 25 24 344Power consumption ndash standby max W 6 5 9Electrical protection rating IP X1B X1B X1BFuses Main A 10 10 10

Tab8 Other dataGas 120 ACE Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Total weight (empty) kg 98 109 109Average acoustic level at a distance of one meshytre from the boiler

dB(A) 40 45 45

SeeThe back cover for contact details

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 13

321 ErP technical parameters

Tab9 Technical parameters for boiler space heatersProduct name Gas 120 ACE

- 65Gas 120 ACE - 90

Gas 120 ACE - 115

Condensing boiler Yes Yes YesLow-temperature boiler(1) No No NoB1 boiler No No NoCogeneration space heater No No NoCombination heater No No NoRated heat output Prated kW 62 84 104

Useful heat output at rated heat output and high temperature regime(2)

P4 kW 615 842 1039

Useful heat output at 30 of rated heat output and low temperature regime(1)

P1 kW 205 279 347

Seasonal space heating energy efficiency ƞs 94 - -Useful efficiency at rated heat output and high temperature regime(2)

ƞ4 894 882 875

Useful efficiency at 30 of rated heat output and low temperature regime(1)

ƞ1 995 974 973

Auxiliary electricity consumption Full load elmax kW 0092 0124 0180Part load elmin kW 0025 0024 0034Stand-by PSB kW 0006 0005 0009

Other specifications Standby heat loss Pstby kW 0114 0119 0119Ignition burner power consumption Pign kW - - -Annual energy consumption QHE GJ 190 - -Sound power level indoors LWA dB 55 61 60Emissions of nitrogen oxides NOx mgkWh 29 41 41(1) Low temperature means for condensing boilers 30degC for low temperature boilers 37degC and for other heaters 50degC return temperature

(at heater inlet)(2) High temperature regime means 60 degC return temperature at heater inlet and 80 degC feed temperature at heater outlet

SeeThe back cover for contact details

322 Circulating pump (not provided)

The boiler is supplied without a circulating pump Take the boiler pressure drop and system pressure drop into account when selecting a pump

CautionThe maximum output of a pump that can be connected is 200 W Above this use an auxiliary relay adapted to the pump output

If possible install the pump in direct connection to the boiler on the return circuit

For more information see

Circulating pump

The maximum difference in temperature between the flow water and the return water and the speed at which the boiler temperature increases are restricted by the boilers control system

3 Technical specifications

14 Gas 120 ACE 7717202 - v03 - 24062019

Tab10 Minimum flow to be guaranteedMinimum flow to be guaranteed in the boiler Unit Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Minimum flow rate litreshour 290 340 455

A Dynamic head in mWcB Water flow rate (m3h)C Pressure drops

ΔT Maximum temperature difference between the flow water and the return water in the boiler

A Dynamic head in mWcB Water flow rate (m3h)C Pressure drops

ΔT Maximum temperature difference between the flow water and the return water in the boiler

A Dynamic head in mWcB Water flow rate (m3h)C Pressure drops

ΔT Maximum temperature difference between the flow water and the return water in the boiler

323 Sensor specifications

Outside temperature sensor specifications

Tab11 Outside temperature sensorTemperature degC -20 -16 -12 -8 -4 0 4 8 12 16 20 24Resistance Ω

(Ohm)2392 2088 1811 1562 1342 1149 984 842 720 616 528 454

Fig2 Pressure drops for Gas 120 ACE - 65

MW-2000671-3

T=20KT=40K

175

Fig3 Pressure drops for Gas 120 ACE - 90

MW-2000673-3

T=20KT=40K

362

Fig4 Pressure drops for Gas 120 ACE - 115

MW-2000674-3

T=20KT=35K

447

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 15

Boiler sensor return sensor

Tab12 Boiler sensor return sensorTemperature in degC

-20 -10 0 10 20 25 30 40 50 60 70 80 90 100 110

Resistance in Ω

98932 58879 36129 22804 14773 10000 9804 6652 4607 3252 2337 1707 1266 952 726

Circuit flow sensor domestic hot water sensor and system sensor

Tab13 Circuit flow sensor domestic hot water sensor and system sensorTemperature in degC 0 10 20 25 30 40 50 60 70 80 90Resistance in Ω 32014 19691 12474 10000 8080 5372 3661 2535 1794 1290 941

Specifications of the boiler flue gas sensor

Tab14 Boiler flue gas sensorTemperature degC 0 10 20 30 40 50 60 70 80 90 100Resistance Ohm 66000 40000 20000 16100 10600 7160 4940 3480 2490 1810 1340

33 Dimensions and connections

Fig5

MW-2000684-03

A

D

E

FG

BC

600 605150

92

132

240

141

418

5

2

34

107

105

95

100

1

255145

1 Heating circuit flow (R114)2 Gas inlet (G34)3 Heating circuit return (R114)

4 Condensate discharge (DN22)5 Flue gas pipe

Tab15 Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 1155 Diameter 100150 mm Diameter 100150 mm Diameter 100150 mmA (mm) 1340 1562 1562B (mm) 1164 1386 1386C (mm) 1082 1304 1304D (mm) 971 1193 1193

3 Technical specifications

16 Gas 120 ACE 7717202 - v03 - 24062019

Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 115E (mm) 410 632 632F (mm) 87 303 303G (mm) 128 350 350

34 Electrical diagram

341 Electrical diagram of boiler

Fig6

CU-GH-08

X3X4X5

X6

X8

1

2

3

1

2

3

X14

X7

X10

X11

X13

X12

1

2

3

4

5

25 A

Nrsquo

1

2

3

4

YE

GY

BR

GR

1

2

3

4

1

2

3

4

1

2

N L

1

2

1

2

OPTION

PRESSURE

SWITCH

MW-2000850-04

230V

1 2 3 4 5 6 7 8 9 10

24V

12 11

BL OR

10 9 8 7 6

GR BK RE YE BL

5 4 3 2 1

OR BK RE YE BL

Lrsquo

BL

GY

GY

GY

BL BR

GY

BL

BR

GY BL

BR

GY

BR

GR BK RE YE BL OR BK RE YE BL

BK

BL

BR

RE

GR

GR

BK

GR

GY

YE

BR

BL

OR

1

2

3

4

5

1

2

3

RE

BK

GR

BR

BK

BL

GR

1

2

BR

GR

GY

RE BL

BL

BK

BK

BR YE

GR PI

BL

BL

GR

PI

GR

RE

BR

YE

BK

BK

BR

GY

BL

BL

BR

GY

GY

BR

BL BL GY

BR

BL

BR

BK

GYWH

GY

BL

GY

BL

BR

BK

WH

BL

GY

1 12

4

5

2

3

6

7

8

9

10

11

16

17

15

14

13

1 230 V connector connection with control unit2 Mains interference filter3 Earthing of boiler front door4 Return sensor (TR)5 Flow sensor (FTS)6 Flue gas sensor7 Flue gas pressure switch (specific option for the

Netherlands)8 Gas valve unit (GB)9 Igniter (IT)

10 Ionizationignition electrode (E)11 Fan supply12 24 V connector connection with control unit13 Storage information (CSU)14 Pressure sensor (PS)15 Fan control (PWM)16 Light17 Control unit (CU-GH08)BK BlackBL Blue

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 17

BR BrownGY GreenYellowYE YellowOR OrangeGR Green

PI PinkGY GreyRD RedWH White

3 Technical specifications

18 Gas 120 ACE 7717202 - v03 - 24062019

4 Description of the product

41 General description

Gas 120 ACE floor-standing condensing gas boilers have the following characteristics

Low polluting emissionsHigh-efficiency heatingElectronic control panelFlue gas discharge by a forced flue or chimney type connection with bi-flow option

The boilers are perfectly suited to cascade installation

42 Operating principle

421 Gasair setting

The casing fitted to the boiler is also used as an air box Air is drawn in by the fan and gas injected into the Venturi by the fan intake The fan speed is modulated according to the settings the heat demand and the actual temperatures measured by the temperature sensors The gas and air are mixed in the Venturi The gasair ratio command function accurately adjusts the quantities of gas and air required This provides optimum combustion over the entire output range The gasair mixture is sent to the burner located upstream of the heat exchanger

422 Settings and safety devices

ImportantThe settings and safety devices are only operational if the boiler is powered up

Tab16 Description of the safety devicesDevice DescriptionNTC flue gas sensor The control panel blocks the gas supply to the burner in the event of overheatingFlame detector by ionisation The boiler is put into safety lock-down in the event of gas shortage or incomplete cross-

lighting on the burnerHydraulic pressure switch When the pressure switch detects a pressure lower than 08 bar (008 MPa) a warning

message is displayed without stopping the circulating pumpPost-circulating pump After the burner stops depending on the room thermostat setting and if in heating

mode the circulating pump runs for a further 3 minutesFrost protection device When the flow temperature is lower than 5 degC the burner starts up and runs until the

flow temperature reaches 15 degC This device runs under the following conditions

The boiler is switched onThe gas supply is workingThe pressure in the system is higher than 05 bar (005 MPa)

Anti-blocking of the pump If there are no heating or domestic hot water requirements for 24 consecutive hours the pumps start up automatically and run for 10 seconds

Anticipatory start-up of the circulatshying pumps

In heating mode only the appliance can start up the circulating pumps before burner igshynition The duration and activation of anticipatory start-up depends on the installation reshyquirements and the operating temperatures The duration of anticipatory start-up of the circulating pumps therefore varies from a few seconds to several minutes

4 Description of the product

7717202 - v03 - 24062019 Gas 120 ACE 19

43 Main boiler components

1 Control unit2 Flow sensor3 Light4 Ignitionionization electrode5 Non-return valve6 Gas valve7 Heat exchanger (heating circuit)8 Return sensor9 Pressure gauge sensor

10 CU-GH-08 PCB housing11 Siphon12 Flue gas circuit13 Intake silencer14 Venturi15 Flue gas sensor16 Fan17 Automatic air vent18 Flue gas measuring point19 Combustion air measuring point20 Flue gas outletair supply

44 PCBs

441 Description of the CU-GH-08 PCB

This PCB controls the core boiler components sensors actuators and gas valveThis PCB is factory-fitted and fully cabled and does not require any operationThe sensors valves circulating pumps etc are connected at the control unit

45 Standard delivery

The Gas 120 ACE boiler comes in 2 packages including

Tab17 Package contentsPackage ContentPackage 1 A floor-standing gas boiler

A flue system outlet with a measuring point (stored in the boiler)An outdoor temperature sensorA data plateAn installation and service manual

Package 2 A control unitTwo control unit mounting bolts on the boilerA user manual

46 Accessories amp options

A detailed list of accessories and options can be found in our catalogue

Fig7

MW-2000670-02

16

7 13

12

11

10

19

18

20

17

14

15

6

5

2

9

4

3

1

8

4 Description of the product

20 Gas 120 ACE 7717202 - v03 - 24062019

5 Installation

51 Installation regulations

CautionInstallation of the boiler must be done by a qualified professional in accordance with prevailing local and national regulations

CautionA disconnection device must be fitted to the permanent pipes in accordance with the installation rules

CautionRespect the maximum water inlet pressure to ensure correct operation of the appliance referring to the Technical Specifications chapter

52 Choice of the location

Decide on the ideal position for installation bearing in mind any legal directives and the space required by the appliance

Install the boiler on a solid stable structure capable of bearing the weight of the appliance when full of water and fully equippedWhen choosing the position for installation of the boiler bear in mind the positions authorised for the combustion gas discharge outlets and the air intake ventDo not install the boiler near any heat sources

521 Data plate

The data plate is located on the back of the boilerThe data plate provides important information regarding the appliance

Serial numberModelGas categoryCN1CN2etc

Once installation is complete the second data plate supplied in the documentation bag can be affixed to a more visible part of the boilerIf the boiler is equipped with a hydraulic kit (low-loss header or plate heat exchanger) affix the data plate to the side of the boiler

522 Space required - Boiler ventilation

Decide on the ideal position for installation bearing in mind any legal directives and the space required by the appliance

Install the boiler on a solid stable structure capable of bearing the weight of the appliance when full of water and fully equippedWhen choosing the position for installation of the boiler bear in mind the positions authorised for the combustion gas discharge outlets and the air intake ventDo not install the boiler near any heat sources

Fig8

MW-6000735-01

Made in France0085

CN1 17

CN2 7

230 V 50 Hz

B23(P) - B33 - C13(X) - C33(X) - C43(X) - C53 - C63(X) - C83(X) - C93(X)

PMS= 4bar - 04MPa

Pn =

8060 degC

5030 degC

NOx class 6 (Nox lt 56 mgkWh)

Qn =Hi kW

4030 degC

189-1039

196-1070

212-1097

180W

0085CT009

Hs (G20) 217-1189

IP21Imax= 10A

Tmax= 90degC

FR

LT

IT

AT

CZ

PL

II2Esi3BP

II2H3BP

II2H3BP

II2H3BP

II2H3P

II2H3BP

II2H3BP

II2ELw3BP

G20-20mbar G25-25mbar G30G31-303750mbar

G20-20mbar G30G31 - 30mbar

G20-20mbar G30G31 - 303750 mbar

G20-20mbar G30G31 - 3037mbar

G20-20mbar G31 - 30mbar

G20-20mbar G30G31 - 50mbar

G20-20mbar G30G31-303750mbar

G20-20mbar G27-20mbar G3031-37mbar

kW

Art Nr SN A0000YYWW000

kW

kW

kW

kW

kW

ESGR PT

LU RO EE

YY-WW

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 21

Keep the boiler accessible at all timesPlace the boiler on a base to make it easier to clean the roomThe boiler can be located along a partition on one of its sides provided there is a 500 mm space on the opposite sideAllow enough space around the boiler to facilitate accessibility and maintenance The minimum recommended dimensions are shown in the illustrationMake sure there is a connection to the water drainage system close to the boiler to discharge any condensates

ImportantTo fit the boiler position the pallet with the package 25 m in front of the desired location for the installation This distance is required to allow the boiler to be removed from its pallet

Tab18Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 115

A (mm) 500 500 500B (mm) 1082 1304 1304

To allow the intake of combustion air sufficient ventilation must be provided in the boiler room the cross section and position of which must satisfy the regulations in force

Great Britain BS 5440 Part 1 and Part 2

For boilers with a nominal output of more than 70 kW Upper and lower air vents comshypulsory

BS 6644 and IGEMUP-10

Caution

Avoid any low points in the flue gas and condensate discharge circuit in order to prevent any accumulation of condensatesDo not block the air inlets in the room or the combustion product evacuation or condensation water flow pipes (even partially)

If the boiler is installed in closed premises respect the minimum dimensions given in the diagram below Also allow for openings to obviate the following hazards

Accumulation of gasOverheating of the premisesGreat Britain Minimum cross section of openings see BS 5440 Part 1 and Part 2 and BS 6644

523 Ventilation

To allow the intake of combustion air sufficient ventilation must be provided in the boiler room for which the cross section and position must satisfy the regulations in force in the country in which the boiler is installed

Great Britain BS 5440 Part 1 and Part 2

For boilers with a nominal output of more than 70 kW Upper and lower air vents comshypulsory

BS 6644 and IGEMUP-10

Fig9

MW-2000679-03

500

B

1100

AS1

S2

260

580

350

600

500

5 Installation

22 Gas 120 ACE 7717202 - v03 - 24062019

If the boiler is installed in closed premises respect the minimum dimensions given in the diagram below Also allow for openings to obviate the following hazards

Accumulation of gasOverheating of the premisesGreat Britain Minimum cross section of openings see BS 5440 Part 1 and Part 2 and BS 6644

524 Fitting the outdoor sensor

Plugs diameter 4 mmdrill diameter 6 mm

1 Choose a recommended location for the outdoor sensor2 Put the 2 plugs in place delivered with the sensor3 Secure the sensor using the screws provided (diameter 4 mm)4 Connect the cable to the outdoor temperature sensor

Recommended positions

Place the outside sensor in a position that covers the following characteristics

On a faccedilade of the area to be heated on the north if possibleHalf way up the wall of the area to be heatedUnder the influence of changes in the weatherProtected from direct sunlightEasy to access

Fig11

MW-8800N001-3

2

1

2

11

2

H

12 H (min 25 m)

12 H (min 25 m)

12 Z

H

Z

1 Optimum location2 Possible position

H Inhabited height controlled by the sensorZ Inhabited area controlled by the sensor

Positions to be avoided

Avoid placing the outside sensor in a position with the following characteristics

Masked by part of the building (balcony roof etc)Close to a disruptive heat source (sun chimney ventilation grid etc)

Fig10

MW-8800N003-6

23

4

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 23

Fig12

MW-3000014-2

53 Transport

Transport the boiler pallet with a manual or electric pallet truck

54 Unpacking and preparing the boiler

Caution

Wear gloves to handle the boilerTransport the boiler pallet with a manual or electric pallet truckUse carrying bars (not provided) to move the boiler

ImportantTo fit the boiler position the pallet with the package 25 m in front of the desired location for the installation This distance is required to allow the boiler to be removed from its pallet

1 Cut the packaging2 Remove the packaging from the boiler but leave the boiler on the

shipping pallet

ImportantThe documentation bag (user manual + accessories) is contained in the protective block

Fig13

MW-6000736-01

Manual

11

12

5 Installation

24 Gas 120 ACE 7717202 - v03 - 24062019

3 Using a long tool unlock and remove the boilers front door Disconnect the earth wire

4 Remove the mounting bolts from the unloading ramps and the boiler (4 bolts at the rear and 4 bolts at the front)

5 Pull out the unloading ramps and turn them over6 Align the ramps with the rear castor wheels on the boiler

Fig14

MW-6000761-01

3

3

Fig15

MW-6000737-01

4

4

Fig16

MW-6000738-01

5

5

6

6

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 25

7 Lock the ramps correctly onto the pallet8 Screw the unloading ramps onto the pallet9 Fold down the ends of the ramp so that they rest on the ground

10 Tilt the boiler backwards until it is resting on the castor wheels then remove it from the pallet

11 Recycle the pallet

Fig17

MW-6000770-01

9

9

8

7

Fig18

MW-6000739-02

600

350

11

10

550

5 Installation

26 Gas 120 ACE 7717202 - v03 - 24062019

12 Level the boiler using the adjustable feet(1) Factory setting 30 mm adjustment range 20 to 40 mm

CautionThe rear castor wheels must no longer be in contact with the ground

55 Hydraulic connections

551 Water treatment

In many cases the boiler and the heating system can be filled with mains water without treating the water

CautionDo not add any chemical products to the heating water without first consulting a water treatment specialist For example antifreeze water softeners products to increase or reduce the pH value chemical additives andor inhibitors These may cause faults in the boiler and damage the heat exchanger

Important

Flush the installation with at least 3 times the volume of water contained in the heating systemFlush the DHW circuit with at least 20 times its volume of water

The water in the installation must comply with following specifications

Tab19 Installation water specifications Initial commissioning Concentration (top up)Degree of acidity (untreated water) pH 65 - 85 65 - 85

Degree of acidity (treated washyter) pH 70 - 90 70 - 90

Conductivity at 25degC μScm le 500 le 500Chlorides mglitre le 50 le 50Other components mglitre lt 1 lt 1

Total water hardnessdegf 5 - 35 le 15degdH 28 - 200 le 85mmollitre(1) 05 - 35 lt 15

(1) Flow temperature less than 90degC mdash Maximum hardness 150 mmoll

Fig19

MW-6000773-01

(1)

12

12

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 27

ImportantIf water treatment proves necessary Remeha recommends the following manufacturers

CillitClimalifeFernoxPermoSentinel

552 Flushing new installations and installations less than 6 months old

Before filling the heating installation it is essential to remove any debris (copper caulking soldering flux) from the installation

1 Clean the installation with a powerful universal cleaner2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

553 Flushing an existing installation

Before filling the heating installation it is essential to remove any sludge deposits which have accumulated in the heating circuit over the years

1 Remove any sludge from the installation2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

554 Connecting the heating circuit

ImportantAbide by the information shown in the hydraulic diagrams

The pipes are not provided

Caution

The heating pipe must be mounted in accordance with the provisions applicableIf installing stop valves position the filldrain valve and the expansion vessel between the stop valves and the boilerAlways install a safety valve calibrated to a maximum of 4 bar on the heating circuit The safety valve can be connected to a venting pot The safety valve must not be used to drain the heating circuitIt is recommended to install a sludge collector on all installations

SeeIf fitting with a hydraulic kit (low-loss header or plate heat exchanger) refer to the kit manual

555 Connecting the condensate discharge pipe

Use a neutralisation station to achieve a pH value of more than 65 (in accordance with prevailing regulations)Discharge the condensates directly into the mains drainage system via a siphon In view of the acidity level (pH 25 to 3) only condensate discharge pipes made from compatible plastic should be used

5 Installation

28 Gas 120 ACE 7717202 - v03 - 24062019

The condensate discharge pipe is located at the rear of the boiler

Do not block the condensate discharge pipeTilt the discharge pipe by at least 30 mm per metre and make sure there are no low points that could cause the accumulation of water or deposits Maximum horizontal length 5 metresDo not drain condensation water into a roof gutterConnect the condensate discharge pipe in accordance with prevailing standardsIt is preferable to use the condensate neutralisers recommended by the manufacturer of the boiler

1 Connect a plastic hose to the condensate discharge outlet (DN 22)2 Insert the other end of the hose into a waste water discharge outlet

556 Filling the siphon

DangerIf operating with the siphon empty combustion products will escape into the premises in which the boiler is installed

1 Pour water into the flue gas pipe (central pipe) until it flows out of the condensate discharge pipe

56 Gas connection

Danger

Close the main gas valve before starting work on the gas pipesThe diameters of the pipes must be defined in accordance with the standards in force in your countryConnect the gas pipe in accordance with prevailing standards and regulationsEnsure that there is no dust in the gas pipe

The gas pipes are not providedIn old gas networks we recommend fitting a gas filter with a low pressure drop upstream of this point

1 Clean the gas supply pipe2 Remove the anti-dust plug located on the boilers gas inlet3 Mount a gas stop valve (not provided) on the boilers gas inlet4 Connect the gas inlet pipe to the gas stop valve

Fig20

MW-2000825-01

pH gt 65

Oslash32A

Fig21

MW-6000742-02

1

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 29

5 Close the gas supply valve before testing the pressure on the gas supply pipe to avoid damage caused by excessive pressure on the gas regulator Decompress before reopening the valve

561 Gas supply

Before mounting check that the gas meter has sufficient capacity (in m3h) To do this you should bear in mind the consumption of all appliances If the capacity of the gas meter is too low inform the gas supply companyThe boilers are preset to run on G20 gas (gas H) and can be adapted to run with the following gases

G31 (gas P)G3031 (gas BP)

ImportantTo use a different type of gas contact an approved assistance service

57 Air supplyflue gas outlet connections

571 Classification

The discharge and intake pipes must be certified for the appropriate configuration and must meet the requirements of the prevailing installation standards in the country

Tab20 Configurations and recommendations for the flue systemConfiguration Principle DescriptionB23B23P

AD-3001055-01

Connection to a chimney using a CE connection kit (single pipe in a flue comshybustion air taken from the boiler room)Follow the connection instructions and adhere to the recommended maximum pipe lengthsComply with the applicable regulations governing ventilation and cross-secshytions for room aeration vents

B33

MW-5000925-1

Room-ventilated version

Without down-draught diverterJoint flue gas discharge via the roof with guaranteed natural draft (at all times underpressure in the joint discharge duct)Flue gas discharge rinsed with air air from the installation area (special conshystruction)The IP rating of the boiler is lowered to IP20

C13C13X

AD-3001056-01

Airflue gas connection using concentric pipes to a horizontal terminal (so-called forced flue) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

5 Installation

30 Gas 120 ACE 7717202 - v03 - 24062019

Configuration Principle DescriptionC33C33X

AD-3001057-01

Airflue gas connection using concentric pipes to a vertical terminal (roof outshylet) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

C43C43X

MW-2000822-01

Airflue gas connection via concentric pipes to a common pipe supplying severshyal heating applicationsThe common pipe has a roof connection to a vertical terminal that draws in the air required for combustion and discharges the combustion productsUse of CE-certified system

C53

AD-3001058-02

Airflue gas connection via separate pipes lead to two separate terminals One draws in the air required for combustion and the other discharges the combusshytion productsThe outlets may be in different pressure zonesDo not install the air supply and discharge on opposing surfacesUse of CE-certified system

C63C63X

The installer is responsible for installing a CE-certified discharge system that complies with the manufacturers recommendations (temperature flow pressure etc)

The maximum pressure drop in the pipes ΔP must not exceed the values given in the table below The pipes must be certified for this type of use and for a temperature of more than 100 degC The terminal part of the flue gas pipe must be certified as complying with the EN 1856-1 StandardIf installing discharge and intake pipes not supplied by Remeha these must be certified for the intended type of use and their maximum pressure drop must be compliant

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 31

Configuration Principle DescriptionC83C83X

MW-2000823-01

Flue gas connection to a collective flue for sealed boilers The air supply is inshydividual via a terminal coming from outside the buildingA concentric pipe can be used to both supply the boiler with combustion air and connect to the collective flue gas discharge systemThe chimney or flue gas pipe must be suitable for such use and the system CE certified

C93C93X

AD-3001059-01

Airflue gas connection via concentric pipes in an existing chimney The air supshyply in the chimney may be installed via the existing channel or via tubing Flue gas discharge and air intake are via a vertical terminal at the top of the chimney

The air intake and discharge must be close enough to be in the same pressure zoneThe minimum cross-sections are shown in the table belowThe flue system must be suitable for the intended use and the system CE certishyfied

Tab21 Minimum dimensions of the duct or pipe C93 C93X

Version (D) Without air supply With air supplyRigid 80 mm Oslash 130 mm 130 x 130 mm Oslash 140 mm 130 x 130 mmRigid 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmRigid 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmFlexible 80 mm Oslash 130 mm 130 x 130 mm Oslash 145 mm 130 x 130 mmFlexible 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmFlexible 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmConcentric 80125 mm Oslash 145 mm 145 x 145 mm Oslash 145 mm 145 x 145 mmConcentric 100150 mm Oslash 170 mm 170 x 170 mm Oslash 170 mm 170 x 170 mmConcentric 150200 mm Oslash 270 mm 270 x 270 mm - -

ImportantThe duct must comply with the air density requirements of the local regulations

Important

Only original components are authorised for connection to the boiler and for the terminalThe clear section must comply with the standardThe chimney must be swept before installing the discharge flue

CautionEnsure that the flue gas discharge pipes are securely attached to the wall with suitable retaining flanges to prevent any damage and guarantee the tightness of every gasket in the circuit

CautionThe minimum gradient of the condensates discharge pipe from the boiler to the waste water discharge must be 1 cm per linear metre

Fig22 Minimum dimensions of the duct or pipe C93 C93X

AD-3000330-03

D

Oslash

D

5 Installation

32 Gas 120 ACE 7717202 - v03 - 24062019

572 Lengths of the airflue gas pipes

The maximum lengths (Lmax) given in the table are valid for pipes in which the horizontal sections do not exceed one metre in total For each additional metre of horizontal pipe a multiplication coefficient of 12 must be applied when calculating the total length L The total length L is calculated by adding the lengths of the straight airflue gas pipes and the equivalent lengths of the other componentsAlways ensure that L is less than Lmax

ImportantFor the list of flue gas system accessories and the equivalent lengths refer to the current price list

Tab22 Lengths of the airflue gas pipes in metresConfigurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 100 mm 26 24 19

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 110 mm 40 40 40

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 110 mm 295 24 175

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 80125 mm - - -

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 100150 mm 9 8 59

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 80125 mm - - -

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 100150 mm 115 10 94

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 80125 mm over 2x80 mm

- - -

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 100150 mm over 2x100 mm

23 175 Air 11Flue gases 5

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm110 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 110150 mm110 mm

16 132 10

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 33

Configurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 110150 mm110 mm

165 135 94

Tab23 PPS pipe reduction for each element used

Diameter 80 mmSingle

80125 mmConcentric

100 mmSingle

100150 mmConcentric

45deg elbow 12 m 10 m 11 m 10 m87deg elbow 19 m 15 m 20 m 37 mStraight inspection tube 03 m 06 m - 10 m87deg inspection elbow 19 m 20 m 48 m -Inspection T 42 m 27 m 56 m 25 mInspection tube for flexible pipe 03 m - 05 m -

573 Dimensions of flue gas outlet pipe

WarningThe pipes connected to the flue gas adapter must satisfy the following dimension requirements

d1 External dimensions of flue gas outlet pipe

Tab24 Dimensions of pipe d1 (min-max)80 mm 793 - 803 mm100 mm 993 - 1003 mm150 mm 149 - 151 mm

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipe

Tab25 Dimensions of pipe d1 (min-max) D1 (min-max)8080 mm 793 - 803 mm 793 - 803 mm100100 mm 993 - 1003 mm 993 - 1003 mm110110 mm 1093 - 1103 mm 1093 - 1103 mm150150 mm 149 - 151 mm 149 - 151 mm

Fig23 Dimensions of open connection

AD-3001094-01

oslashd1

Fig24 Dimensions of parallel connection

AD-3000963-01

oslashd1 oslashD1

5 Installation

34 Gas 120 ACE 7717202 - v03 - 24062019

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipeL1 Length difference between flue gas outlet pipe and air supply pipe

Tab26 Dimensions of pipe d1 (min-max) D1 (min-max) L1

(1) (min-max)80125 mm 793 - 803 mm 124 - 1255 mm 0 - 15 mm100150 mm 993 - 1003 mm 149 - 151 mm 0 - 15 mm

(1) Shorten the inner pipe if the length difference is too great

574 Connection to the flue gas pipe

At delivery the flue gas outletair supply is fixed inside the boiler

1 Using a long tool unlock and remove the boilers front door2 Remove the boiler outlet

3 Two options for connection to the flue gas pipe

Option Description3a Connection to a vertical flue gas pipe Position the flue gas

outletair supply directly at the boiler outlet3b Connection to a horizontal flue gas pipe Insert an outlet elshy

bow ( not supplied) before the flue gas outletair supply

ImportantLubricate the gaskets on the flue system during assembly

Fig25 Dimensions of concentric connection

AD-3000962-01

oslashd1

L1

oslashD1

Fig26

MW-2000867-02

1

2

1

Fig27

3a 3b

MW-2000868-01

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 35

Fastening the coaxial pipes Fasten the intake pipes with two galvanised Oslash 42 mm screws with a maximum length of 16 mm

CautionBefore fixing the screws make sure that at least 45 cm of pipe is inserted in the gasket of the other pipe

WarningGuarantee a minimum pipe slope towards the boiler of at least 5 cm per metre

Fig28 Fastening the coaxial pipes using screws

BO-0000030

16 mm

5 Installation

36 Gas 120 ACE 7717202 - v03 - 24062019

6 Operation

61 Settings

To configure the installation and use the boiler please refer to the control unit manual

6 Operation

7717202 - v03 - 24062019 Gas 120 ACE 37

7 Maintenance

71 General

We recommend having the boiler inspected and serviced at regular intervals

CautionDo not neglect to service the boiler Contact a qualified professional or take out a maintenance contract for the obligatory annual servicing of the boilerFailure to service the appliance voids the warranty

Danger of electric shockBefore service work is started the boiler has to be de-energised and secured from accidentally being switched back on

CautionHave an inspection carried out and the flues swept at least once a year or more depending on the regulations in force in your country

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

CautionAfter maintenance or repair work check the entire heating system to ensure that there are no leaks

CautionOnly genuine spare parts may be used

72 Specific maintenance operations

721 Cleaning the siphon

1 Remove the flue gas outlet discharge pipe

2 Remove the condensate discharge pipe 3 Remove the screw from the siphon

Fig29

1

MW-2000903-01

Fig30

2

3

MW-2000904-01

7 Maintenance

38 Gas 120 ACE 7717202 - v03 - 24062019

4 Pull the siphon downwards to disengage it and pivot it to release it

5 Flush the siphon 6 Drain the siphon

7 Fill the siphon with clean water up to the mark 8 Lubricate the siphon gasket9 Re-engage the siphon and refit the screw

10 Refit the two pipes

722 Checking the ionisation current

1 Check the ionisation current at full load and at low loadThe value is stable after 1 minute

2 Clean or replace the ionisationignition electrode if the value is lower than 4 microA

Fig31

4

90deg

MW-2000905-01

Fig32

MW-2000843-01

Fig33

MW-2000844-01

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 39

723 Replace the ionizationignition electrode

The ionizationignition electrode must be replaced if

The ionization current is lt 4 microAThe electrode is damaged or worn

1 Remove the plug of the electrode from the igniter

ImportantThe ignition cable is fixed to the electrode and therefore may not be removed

2 Remove the two screws3 Remove the entire component4 Fit the new ionizationignition electrode with a new seal5 Reassemble the unit in the reverse order to disassembly

724 Servicing the forced flue connection pipes

1 Open the inspection hatches or remove the pipes2 Check that the air supply and discharge pipes are not blocked

If necessary clean the discharge pipe3 Check the tightness of the flue gas system4 Replace the tightness gaskets and if necessary any sections of pipe

until tightness is perfect

725 Checking the burner and cleaning the heat exchanger

1 Remove the air inlet flue on the venturi2 Loosen the gland on the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

Fig34

AD-0000088-01

4

1

2

3

Fig35 Removing the fan

AD-3001178-01

1

3

4

2

5

7 Maintenance

40 Gas 120 ACE 7717202 - v03 - 24062019

6 Remove the front plate from the heat exchanger7 Carefully lift the front plate including the burner and fan away from

the heat exchanger

8 Use a vacuum cleaner fitted with a special endpiece (accessory) to clean the top part of the heat exchanger (combustion chamber)

9 Vacuum again without the top brush on the end piece10 Clean the lower section of the heat exchanger with the special

cleaning blade (accessory)11 Check (eg using a mirror) whether any visible contamination has

been left behind If it has remove it with the vacuum cleaner12 Check that the burner cover of the dismantled burner is free from

cracks andor damage If not replace the burnerServicing the burner is usually not necessary it is self-cleaning Use compressed air to carefully blow away any dust

13 Reassemble the unit in reverse order

CautionRemember to reconnect the fan plugCheck that the gasket is correctly positioned between the mixing elbow and the heat exchanger (the gasket must lie absolutely flat in the appropriate groove to ensure that no gas can leak)Tighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the front plate nuts with a torque wrench to the firmness of 10 Nm

14 Open the gas supply and switch the power supply to the boiler back on

Fig36 Removing the front plate fan and burner

AD-3001179-01

6

7

Fig37 Cleaning the heat exchanger

AD-3001180-01

10

8 9

12

11

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 41

726 Checking the non-return valve

1 Remove the air inlet pipe from the venturi2 Unscrew the gland of the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

6 Dismantle the fan7 Remove the fan together with the gas valve unit8 Inspect the non-return valve and replace it in the event of a defect or

damage or if the maintenance kit contains a non-return valve9 Reassemble in the reverse order

CautionRemember to reconnect the fan plugTighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the two fan nuts with a torque wrench to the firmness of 38 Nm

Fig38 Disconnecting the fan

AD-3001178-01

1

3

4

2

5

Fig39 Checking the non-return valve

AD-3001181-01

2x

68

7

9

7 Maintenance

42 Gas 120 ACE 7717202 - v03 - 24062019

8 Decommissioning

81 Decommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

To switch off the boiler temporarily or permanently proceed as follows

1 Switch the boiler off2 Cut the electrical power to the boiler3 Close the gas valve on the boiler4 Drain the central heating system or ensure frost protection5 Close the door of the boiler to prevent air circulating inside it6 Remove the pipe connecting the boiler to the chimney and close the

nozzle with a plug

82 Recommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

Should it prove necessary to carry out the recommissioning of the boiler proceed as follows

1 Re-establish electrical power to the boiler2 Fit and check the flue gas pipe3 Fill the siphon with water4 Fill the central heating system5 Open the boiler gas valve6 Start up the boiler

8 Decommissioning

7717202 - v03 - 24062019 Gas 120 ACE 43

9 Disposal and recyclingCautionOnly qualified professionals are permitted to remove and dispose of the boiler in accordance with local and national regulations

If you need to remove the boiler proceed as follows

1 Switch off the boiler2 Cut the power supply to the boiler3 Close the main gas valve4 Close the water mains5 Close the gas valve on the boiler6 Drain the installation7 Remove the airflue gas pipes8 Disconnect all pipes9 Dismantle the boiler

Fig40

MW-3000179-03

9 Disposal and recycling

44 Gas 120 ACE 7717202 - v03 - 24062019

10 Environmental

101 Energy savings

Energy-saving advice

Do not block ventilation outletsDo not cover the radiators Do not hang curtains in front of the radiatorsInstall reflective panels behind the radiators to prevent heat lossesInsulate the pipes in rooms that are not heated (cellars and lofts)Close the radiators in rooms not in useDo not run hot (or cold) water pointlesslyInstall an energy-saving shower head which can save up to 40 energyTake showers rather than baths A bath consumes twice as much water and energy

102 Room thermostat and settings

Various models of room thermostat are available The type of thermostat used and the parameter selected impact total energy consumption

A modulating regulator which may be combined with thermostatic valves is eco-friendly in terms of energy and offers an excellent level of comfort This combination allows you to set the temperature separately for each room However do not install thermostatic radiator valves in the room in which the room thermostat is locatedComplete opening and closing of the thermostatic radiator valves causes undesirable variations in temperature Therefore these must be openedclosed progressivelySet the room thermostat to a temperature of approximately 20degC to reduce heating costs and energy consumptionLower the thermostat setting to approximately 16degC at night or when you are not at home This reduces heating costs and energy consumptionLower the thermostat setting well before airing the roomsSet the water temperature to a lower level in summer than in winter (eg 60degC and 80degC respectively) when an ONOFF thermostatis usedWhen clock thermostats and programmable thermostats are to be set do not forget to take any holidays and days when no one is at home into account

10 Environmental

7717202 - v03 - 24062019 Gas 120 ACE 45

11 Warranty

111 General

We would like to thank you for buying one of our appliances and for your trust in our productIn order to ensure continued safe and efficient operation we recommend that the product is regularly inspected and maintainedYour installer and our service department can assist with this

112 Terms of warranty

The following provisions do not affect the application in favour of the buyer of the legal provisions with regard to hidden defects that are applicable in the buyers countryThis appliance comes with a warranty that covers all manufacturing faults the warranty period will commence on the date of purchase stated on the installers invoiceThe warranty period is stated in our price listAs a manufacturer we can by no means be held liable if the appliance is used incorrectly is poorly maintained or not maintained at all or is not installed correctly (it is your responsibility to ensure that installation is carried out by a qualified installer)In particular we cannot be held liable for material damage intangible losses or physical injury resulting from an installation that does not comply with

Legal or regulatory requirements or provisions laid down by the local authoritiesNational or local regulations and special provisions relating to the installationOur manuals and installation instructions in particular in terms of regular maintenance of the appliances

Our warranty is limited to the replacement or repair of the parts found to be defective by our technical services team excluding labour transfer and transport costsOur warranty does not cover replacement or repair costs for parts that may become defective due to normal wear incorrect usage the intervention of unqualified third parties inadequate or insufficient supervision or maintenance a mains supply that is not appropriate or the use of unsuitable or poor quality fuelSmaller parts such as motors pumps electrical valves etc are guaranteed only if these parts have never been dismantledThe rights established in European Directive 9944EEC implemented by legal decree No 24 of 2 February 2002 and published in Official Journal No 57 of 8 March 2002 remain in force

11 Warranty

46 Gas 120 ACE 7717202 - v03 - 24062019

12 Spare parts

121 General

If inspection or maintenance work bring to light the need to replace a component in the boilerProvide the reference number given in the spare parts list when ordering a spare part

CautionOnly genuine spare parts may be used

122 Spare parts lists

1221 Exchanger

Fig41

MW-6000743-01

811x

7

7

4

2

16

3

10

119

65

1

13

12

18

14

19

15

18

17

Tab27

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

1 7699615 Complete exchanger x 1 7699614 Complete exchanger x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 47

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

2 S101564 Exchanger front plate x x x3 S54731 Exchanger inspection hatch insulation x x x4 S57241 Exchanger inspection hatch gasket x x x5 S100052 M4x10 self-locking screw (x20) x x x6 S54754 FURQ65 burner x 6 S57477 FURQ85 burner x x7 7623837 Set of 10 k NTC sensors x x x8 S54755 M6 nut (x20) x x x9 7659755 M4x10 screw (x10) x x x10 S53489 Electrode gasket (x10) x x x11 7692359 Ignition electrode x x x12 7631936 Flue gas flow pipe diameter 100 mm x x x13 7624643 NTC 2x20 k flue gas sensor with gasket x x x14 7624619 Ignition transformer x x x15 S56987 ZP M6x16 screw (x10) x x x16 7616253 Valve with support x x x17 7680596 Exchanger bracket x 17 7673616 Exchanger bracket x x18 7701752 Gasket diameter 100 mm (x5) x x x19 7632708 Earth electric clip (x2) x x x

1222 Gas circuit

Fig42

MW-6000744-01

3

2

5

6

9

4

8

10

7

12

11

1

14

13

13

12 Spare parts

48 Gas 120 ACE 7717202 - v03 - 24062019

Tab28Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 S101543 Silencer x 1 S101520 Silencer x 1 S101578 Silencer x2 S54777 Venturi gasket (x5) x 2 S59215 Gas valve-venturi gasket (x5) x 2 S101593 Gaskets (kit) x3 S101726 Fan RG 1481200-3633 x x 3 S100036 Fan RG 148 1200-3633-010202 x4 S101596 Gas valve VK4115v1386 x 4 S101597 Gas valve VK4115vb1012 x 4 S101510 Gas valve GB-ND 057 XP x5 S54766 Venturi x 5 S57488 Venturi x 5 S101595 Venturi VMS 45900450-010 x6 S59215 Gas valve-venturi gasket (x5) x x 7 S57827 Gas valve unit flange x8 S57828 268x22x25 O-ring (x5) x9 S101631 Diaphragm x10 7616249 Flue gas sensor cap (5x) x x x11 S56155 238x177x2 gasket (x20) x x x12 95760050 C HC M4-12 88 ZN3 screw x x x13 S48512 M5-10 screw (x10) x x x14 S101590 Silencer retaining clip x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 49

1223 Hydraulic circuit

Fig43

MW-6000745-01

1

14

6

9

11

8

12

5

37

9

10

2

4

13

Tab29Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7680598 Complete flow pipe x 1 7670807 Complete flow pipe x x2 7672557 Complete return pipe x x x3 7674076 Complete gas pipe x 3 7680434 Complete gas pipe x 3 7670720 Complete gas pipe x4 7698560 HUBA G38 pressure gauge x x x5 94994712 PVC pipe diameter 16x12 x x x6 7699357 Water deflector diameter 100 mm x x x7 94902073 Drain valve 12 x x x8 94918138 Air vent x x x9 95013064 44x32x2 mm green gasket x x x10 95013060 24x17x2 mm green gasket x x 10 95013062 30x21x12 mm green gasket x11 7692329 Condensate hose x x x13 7706103 Assembled siphon height 160 mm x 13 7706038 Assembled siphon height 250 mm x x14 7103731 Condensate drain pan gasket x x x

12 Spare parts

50 Gas 120 ACE 7717202 - v03 - 24062019

1224 Boiler body

Fig44

MW-6000746-01

2

2

1

6

3

34

5

4

Tab30Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7686377 Assembled frame x 1 7686139 Assembled frame x x2 7679958 117x34 handle diameter 65 mm x x x3 7676037 Wheel x x x4 7688301 Frame lateral gasket x 4 7688008 Frame lateral gasket x x5 7688353 Front panel gasket x 5 7688007 Front panel gasket x x6 7693874 R4-05 front panel lock x x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 51

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

E toimistoestsystemsfi

Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 14: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

321 ErP technical parameters

Tab9 Technical parameters for boiler space heatersProduct name Gas 120 ACE

- 65Gas 120 ACE - 90

Gas 120 ACE - 115

Condensing boiler Yes Yes YesLow-temperature boiler(1) No No NoB1 boiler No No NoCogeneration space heater No No NoCombination heater No No NoRated heat output Prated kW 62 84 104

Useful heat output at rated heat output and high temperature regime(2)

P4 kW 615 842 1039

Useful heat output at 30 of rated heat output and low temperature regime(1)

P1 kW 205 279 347

Seasonal space heating energy efficiency ƞs 94 - -Useful efficiency at rated heat output and high temperature regime(2)

ƞ4 894 882 875

Useful efficiency at 30 of rated heat output and low temperature regime(1)

ƞ1 995 974 973

Auxiliary electricity consumption Full load elmax kW 0092 0124 0180Part load elmin kW 0025 0024 0034Stand-by PSB kW 0006 0005 0009

Other specifications Standby heat loss Pstby kW 0114 0119 0119Ignition burner power consumption Pign kW - - -Annual energy consumption QHE GJ 190 - -Sound power level indoors LWA dB 55 61 60Emissions of nitrogen oxides NOx mgkWh 29 41 41(1) Low temperature means for condensing boilers 30degC for low temperature boilers 37degC and for other heaters 50degC return temperature

(at heater inlet)(2) High temperature regime means 60 degC return temperature at heater inlet and 80 degC feed temperature at heater outlet

SeeThe back cover for contact details

322 Circulating pump (not provided)

The boiler is supplied without a circulating pump Take the boiler pressure drop and system pressure drop into account when selecting a pump

CautionThe maximum output of a pump that can be connected is 200 W Above this use an auxiliary relay adapted to the pump output

If possible install the pump in direct connection to the boiler on the return circuit

For more information see

Circulating pump

The maximum difference in temperature between the flow water and the return water and the speed at which the boiler temperature increases are restricted by the boilers control system

3 Technical specifications

14 Gas 120 ACE 7717202 - v03 - 24062019

Tab10 Minimum flow to be guaranteedMinimum flow to be guaranteed in the boiler Unit Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Minimum flow rate litreshour 290 340 455

A Dynamic head in mWcB Water flow rate (m3h)C Pressure drops

ΔT Maximum temperature difference between the flow water and the return water in the boiler

A Dynamic head in mWcB Water flow rate (m3h)C Pressure drops

ΔT Maximum temperature difference between the flow water and the return water in the boiler

A Dynamic head in mWcB Water flow rate (m3h)C Pressure drops

ΔT Maximum temperature difference between the flow water and the return water in the boiler

323 Sensor specifications

Outside temperature sensor specifications

Tab11 Outside temperature sensorTemperature degC -20 -16 -12 -8 -4 0 4 8 12 16 20 24Resistance Ω

(Ohm)2392 2088 1811 1562 1342 1149 984 842 720 616 528 454

Fig2 Pressure drops for Gas 120 ACE - 65

MW-2000671-3

T=20KT=40K

175

Fig3 Pressure drops for Gas 120 ACE - 90

MW-2000673-3

T=20KT=40K

362

Fig4 Pressure drops for Gas 120 ACE - 115

MW-2000674-3

T=20KT=35K

447

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 15

Boiler sensor return sensor

Tab12 Boiler sensor return sensorTemperature in degC

-20 -10 0 10 20 25 30 40 50 60 70 80 90 100 110

Resistance in Ω

98932 58879 36129 22804 14773 10000 9804 6652 4607 3252 2337 1707 1266 952 726

Circuit flow sensor domestic hot water sensor and system sensor

Tab13 Circuit flow sensor domestic hot water sensor and system sensorTemperature in degC 0 10 20 25 30 40 50 60 70 80 90Resistance in Ω 32014 19691 12474 10000 8080 5372 3661 2535 1794 1290 941

Specifications of the boiler flue gas sensor

Tab14 Boiler flue gas sensorTemperature degC 0 10 20 30 40 50 60 70 80 90 100Resistance Ohm 66000 40000 20000 16100 10600 7160 4940 3480 2490 1810 1340

33 Dimensions and connections

Fig5

MW-2000684-03

A

D

E

FG

BC

600 605150

92

132

240

141

418

5

2

34

107

105

95

100

1

255145

1 Heating circuit flow (R114)2 Gas inlet (G34)3 Heating circuit return (R114)

4 Condensate discharge (DN22)5 Flue gas pipe

Tab15 Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 1155 Diameter 100150 mm Diameter 100150 mm Diameter 100150 mmA (mm) 1340 1562 1562B (mm) 1164 1386 1386C (mm) 1082 1304 1304D (mm) 971 1193 1193

3 Technical specifications

16 Gas 120 ACE 7717202 - v03 - 24062019

Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 115E (mm) 410 632 632F (mm) 87 303 303G (mm) 128 350 350

34 Electrical diagram

341 Electrical diagram of boiler

Fig6

CU-GH-08

X3X4X5

X6

X8

1

2

3

1

2

3

X14

X7

X10

X11

X13

X12

1

2

3

4

5

25 A

Nrsquo

1

2

3

4

YE

GY

BR

GR

1

2

3

4

1

2

3

4

1

2

N L

1

2

1

2

OPTION

PRESSURE

SWITCH

MW-2000850-04

230V

1 2 3 4 5 6 7 8 9 10

24V

12 11

BL OR

10 9 8 7 6

GR BK RE YE BL

5 4 3 2 1

OR BK RE YE BL

Lrsquo

BL

GY

GY

GY

BL BR

GY

BL

BR

GY BL

BR

GY

BR

GR BK RE YE BL OR BK RE YE BL

BK

BL

BR

RE

GR

GR

BK

GR

GY

YE

BR

BL

OR

1

2

3

4

5

1

2

3

RE

BK

GR

BR

BK

BL

GR

1

2

BR

GR

GY

RE BL

BL

BK

BK

BR YE

GR PI

BL

BL

GR

PI

GR

RE

BR

YE

BK

BK

BR

GY

BL

BL

BR

GY

GY

BR

BL BL GY

BR

BL

BR

BK

GYWH

GY

BL

GY

BL

BR

BK

WH

BL

GY

1 12

4

5

2

3

6

7

8

9

10

11

16

17

15

14

13

1 230 V connector connection with control unit2 Mains interference filter3 Earthing of boiler front door4 Return sensor (TR)5 Flow sensor (FTS)6 Flue gas sensor7 Flue gas pressure switch (specific option for the

Netherlands)8 Gas valve unit (GB)9 Igniter (IT)

10 Ionizationignition electrode (E)11 Fan supply12 24 V connector connection with control unit13 Storage information (CSU)14 Pressure sensor (PS)15 Fan control (PWM)16 Light17 Control unit (CU-GH08)BK BlackBL Blue

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 17

BR BrownGY GreenYellowYE YellowOR OrangeGR Green

PI PinkGY GreyRD RedWH White

3 Technical specifications

18 Gas 120 ACE 7717202 - v03 - 24062019

4 Description of the product

41 General description

Gas 120 ACE floor-standing condensing gas boilers have the following characteristics

Low polluting emissionsHigh-efficiency heatingElectronic control panelFlue gas discharge by a forced flue or chimney type connection with bi-flow option

The boilers are perfectly suited to cascade installation

42 Operating principle

421 Gasair setting

The casing fitted to the boiler is also used as an air box Air is drawn in by the fan and gas injected into the Venturi by the fan intake The fan speed is modulated according to the settings the heat demand and the actual temperatures measured by the temperature sensors The gas and air are mixed in the Venturi The gasair ratio command function accurately adjusts the quantities of gas and air required This provides optimum combustion over the entire output range The gasair mixture is sent to the burner located upstream of the heat exchanger

422 Settings and safety devices

ImportantThe settings and safety devices are only operational if the boiler is powered up

Tab16 Description of the safety devicesDevice DescriptionNTC flue gas sensor The control panel blocks the gas supply to the burner in the event of overheatingFlame detector by ionisation The boiler is put into safety lock-down in the event of gas shortage or incomplete cross-

lighting on the burnerHydraulic pressure switch When the pressure switch detects a pressure lower than 08 bar (008 MPa) a warning

message is displayed without stopping the circulating pumpPost-circulating pump After the burner stops depending on the room thermostat setting and if in heating

mode the circulating pump runs for a further 3 minutesFrost protection device When the flow temperature is lower than 5 degC the burner starts up and runs until the

flow temperature reaches 15 degC This device runs under the following conditions

The boiler is switched onThe gas supply is workingThe pressure in the system is higher than 05 bar (005 MPa)

Anti-blocking of the pump If there are no heating or domestic hot water requirements for 24 consecutive hours the pumps start up automatically and run for 10 seconds

Anticipatory start-up of the circulatshying pumps

In heating mode only the appliance can start up the circulating pumps before burner igshynition The duration and activation of anticipatory start-up depends on the installation reshyquirements and the operating temperatures The duration of anticipatory start-up of the circulating pumps therefore varies from a few seconds to several minutes

4 Description of the product

7717202 - v03 - 24062019 Gas 120 ACE 19

43 Main boiler components

1 Control unit2 Flow sensor3 Light4 Ignitionionization electrode5 Non-return valve6 Gas valve7 Heat exchanger (heating circuit)8 Return sensor9 Pressure gauge sensor

10 CU-GH-08 PCB housing11 Siphon12 Flue gas circuit13 Intake silencer14 Venturi15 Flue gas sensor16 Fan17 Automatic air vent18 Flue gas measuring point19 Combustion air measuring point20 Flue gas outletair supply

44 PCBs

441 Description of the CU-GH-08 PCB

This PCB controls the core boiler components sensors actuators and gas valveThis PCB is factory-fitted and fully cabled and does not require any operationThe sensors valves circulating pumps etc are connected at the control unit

45 Standard delivery

The Gas 120 ACE boiler comes in 2 packages including

Tab17 Package contentsPackage ContentPackage 1 A floor-standing gas boiler

A flue system outlet with a measuring point (stored in the boiler)An outdoor temperature sensorA data plateAn installation and service manual

Package 2 A control unitTwo control unit mounting bolts on the boilerA user manual

46 Accessories amp options

A detailed list of accessories and options can be found in our catalogue

Fig7

MW-2000670-02

16

7 13

12

11

10

19

18

20

17

14

15

6

5

2

9

4

3

1

8

4 Description of the product

20 Gas 120 ACE 7717202 - v03 - 24062019

5 Installation

51 Installation regulations

CautionInstallation of the boiler must be done by a qualified professional in accordance with prevailing local and national regulations

CautionA disconnection device must be fitted to the permanent pipes in accordance with the installation rules

CautionRespect the maximum water inlet pressure to ensure correct operation of the appliance referring to the Technical Specifications chapter

52 Choice of the location

Decide on the ideal position for installation bearing in mind any legal directives and the space required by the appliance

Install the boiler on a solid stable structure capable of bearing the weight of the appliance when full of water and fully equippedWhen choosing the position for installation of the boiler bear in mind the positions authorised for the combustion gas discharge outlets and the air intake ventDo not install the boiler near any heat sources

521 Data plate

The data plate is located on the back of the boilerThe data plate provides important information regarding the appliance

Serial numberModelGas categoryCN1CN2etc

Once installation is complete the second data plate supplied in the documentation bag can be affixed to a more visible part of the boilerIf the boiler is equipped with a hydraulic kit (low-loss header or plate heat exchanger) affix the data plate to the side of the boiler

522 Space required - Boiler ventilation

Decide on the ideal position for installation bearing in mind any legal directives and the space required by the appliance

Install the boiler on a solid stable structure capable of bearing the weight of the appliance when full of water and fully equippedWhen choosing the position for installation of the boiler bear in mind the positions authorised for the combustion gas discharge outlets and the air intake ventDo not install the boiler near any heat sources

Fig8

MW-6000735-01

Made in France0085

CN1 17

CN2 7

230 V 50 Hz

B23(P) - B33 - C13(X) - C33(X) - C43(X) - C53 - C63(X) - C83(X) - C93(X)

PMS= 4bar - 04MPa

Pn =

8060 degC

5030 degC

NOx class 6 (Nox lt 56 mgkWh)

Qn =Hi kW

4030 degC

189-1039

196-1070

212-1097

180W

0085CT009

Hs (G20) 217-1189

IP21Imax= 10A

Tmax= 90degC

FR

LT

IT

AT

CZ

PL

II2Esi3BP

II2H3BP

II2H3BP

II2H3BP

II2H3P

II2H3BP

II2H3BP

II2ELw3BP

G20-20mbar G25-25mbar G30G31-303750mbar

G20-20mbar G30G31 - 30mbar

G20-20mbar G30G31 - 303750 mbar

G20-20mbar G30G31 - 3037mbar

G20-20mbar G31 - 30mbar

G20-20mbar G30G31 - 50mbar

G20-20mbar G30G31-303750mbar

G20-20mbar G27-20mbar G3031-37mbar

kW

Art Nr SN A0000YYWW000

kW

kW

kW

kW

kW

ESGR PT

LU RO EE

YY-WW

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 21

Keep the boiler accessible at all timesPlace the boiler on a base to make it easier to clean the roomThe boiler can be located along a partition on one of its sides provided there is a 500 mm space on the opposite sideAllow enough space around the boiler to facilitate accessibility and maintenance The minimum recommended dimensions are shown in the illustrationMake sure there is a connection to the water drainage system close to the boiler to discharge any condensates

ImportantTo fit the boiler position the pallet with the package 25 m in front of the desired location for the installation This distance is required to allow the boiler to be removed from its pallet

Tab18Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 115

A (mm) 500 500 500B (mm) 1082 1304 1304

To allow the intake of combustion air sufficient ventilation must be provided in the boiler room the cross section and position of which must satisfy the regulations in force

Great Britain BS 5440 Part 1 and Part 2

For boilers with a nominal output of more than 70 kW Upper and lower air vents comshypulsory

BS 6644 and IGEMUP-10

Caution

Avoid any low points in the flue gas and condensate discharge circuit in order to prevent any accumulation of condensatesDo not block the air inlets in the room or the combustion product evacuation or condensation water flow pipes (even partially)

If the boiler is installed in closed premises respect the minimum dimensions given in the diagram below Also allow for openings to obviate the following hazards

Accumulation of gasOverheating of the premisesGreat Britain Minimum cross section of openings see BS 5440 Part 1 and Part 2 and BS 6644

523 Ventilation

To allow the intake of combustion air sufficient ventilation must be provided in the boiler room for which the cross section and position must satisfy the regulations in force in the country in which the boiler is installed

Great Britain BS 5440 Part 1 and Part 2

For boilers with a nominal output of more than 70 kW Upper and lower air vents comshypulsory

BS 6644 and IGEMUP-10

Fig9

MW-2000679-03

500

B

1100

AS1

S2

260

580

350

600

500

5 Installation

22 Gas 120 ACE 7717202 - v03 - 24062019

If the boiler is installed in closed premises respect the minimum dimensions given in the diagram below Also allow for openings to obviate the following hazards

Accumulation of gasOverheating of the premisesGreat Britain Minimum cross section of openings see BS 5440 Part 1 and Part 2 and BS 6644

524 Fitting the outdoor sensor

Plugs diameter 4 mmdrill diameter 6 mm

1 Choose a recommended location for the outdoor sensor2 Put the 2 plugs in place delivered with the sensor3 Secure the sensor using the screws provided (diameter 4 mm)4 Connect the cable to the outdoor temperature sensor

Recommended positions

Place the outside sensor in a position that covers the following characteristics

On a faccedilade of the area to be heated on the north if possibleHalf way up the wall of the area to be heatedUnder the influence of changes in the weatherProtected from direct sunlightEasy to access

Fig11

MW-8800N001-3

2

1

2

11

2

H

12 H (min 25 m)

12 H (min 25 m)

12 Z

H

Z

1 Optimum location2 Possible position

H Inhabited height controlled by the sensorZ Inhabited area controlled by the sensor

Positions to be avoided

Avoid placing the outside sensor in a position with the following characteristics

Masked by part of the building (balcony roof etc)Close to a disruptive heat source (sun chimney ventilation grid etc)

Fig10

MW-8800N003-6

23

4

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 23

Fig12

MW-3000014-2

53 Transport

Transport the boiler pallet with a manual or electric pallet truck

54 Unpacking and preparing the boiler

Caution

Wear gloves to handle the boilerTransport the boiler pallet with a manual or electric pallet truckUse carrying bars (not provided) to move the boiler

ImportantTo fit the boiler position the pallet with the package 25 m in front of the desired location for the installation This distance is required to allow the boiler to be removed from its pallet

1 Cut the packaging2 Remove the packaging from the boiler but leave the boiler on the

shipping pallet

ImportantThe documentation bag (user manual + accessories) is contained in the protective block

Fig13

MW-6000736-01

Manual

11

12

5 Installation

24 Gas 120 ACE 7717202 - v03 - 24062019

3 Using a long tool unlock and remove the boilers front door Disconnect the earth wire

4 Remove the mounting bolts from the unloading ramps and the boiler (4 bolts at the rear and 4 bolts at the front)

5 Pull out the unloading ramps and turn them over6 Align the ramps with the rear castor wheels on the boiler

Fig14

MW-6000761-01

3

3

Fig15

MW-6000737-01

4

4

Fig16

MW-6000738-01

5

5

6

6

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 25

7 Lock the ramps correctly onto the pallet8 Screw the unloading ramps onto the pallet9 Fold down the ends of the ramp so that they rest on the ground

10 Tilt the boiler backwards until it is resting on the castor wheels then remove it from the pallet

11 Recycle the pallet

Fig17

MW-6000770-01

9

9

8

7

Fig18

MW-6000739-02

600

350

11

10

550

5 Installation

26 Gas 120 ACE 7717202 - v03 - 24062019

12 Level the boiler using the adjustable feet(1) Factory setting 30 mm adjustment range 20 to 40 mm

CautionThe rear castor wheels must no longer be in contact with the ground

55 Hydraulic connections

551 Water treatment

In many cases the boiler and the heating system can be filled with mains water without treating the water

CautionDo not add any chemical products to the heating water without first consulting a water treatment specialist For example antifreeze water softeners products to increase or reduce the pH value chemical additives andor inhibitors These may cause faults in the boiler and damage the heat exchanger

Important

Flush the installation with at least 3 times the volume of water contained in the heating systemFlush the DHW circuit with at least 20 times its volume of water

The water in the installation must comply with following specifications

Tab19 Installation water specifications Initial commissioning Concentration (top up)Degree of acidity (untreated water) pH 65 - 85 65 - 85

Degree of acidity (treated washyter) pH 70 - 90 70 - 90

Conductivity at 25degC μScm le 500 le 500Chlorides mglitre le 50 le 50Other components mglitre lt 1 lt 1

Total water hardnessdegf 5 - 35 le 15degdH 28 - 200 le 85mmollitre(1) 05 - 35 lt 15

(1) Flow temperature less than 90degC mdash Maximum hardness 150 mmoll

Fig19

MW-6000773-01

(1)

12

12

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 27

ImportantIf water treatment proves necessary Remeha recommends the following manufacturers

CillitClimalifeFernoxPermoSentinel

552 Flushing new installations and installations less than 6 months old

Before filling the heating installation it is essential to remove any debris (copper caulking soldering flux) from the installation

1 Clean the installation with a powerful universal cleaner2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

553 Flushing an existing installation

Before filling the heating installation it is essential to remove any sludge deposits which have accumulated in the heating circuit over the years

1 Remove any sludge from the installation2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

554 Connecting the heating circuit

ImportantAbide by the information shown in the hydraulic diagrams

The pipes are not provided

Caution

The heating pipe must be mounted in accordance with the provisions applicableIf installing stop valves position the filldrain valve and the expansion vessel between the stop valves and the boilerAlways install a safety valve calibrated to a maximum of 4 bar on the heating circuit The safety valve can be connected to a venting pot The safety valve must not be used to drain the heating circuitIt is recommended to install a sludge collector on all installations

SeeIf fitting with a hydraulic kit (low-loss header or plate heat exchanger) refer to the kit manual

555 Connecting the condensate discharge pipe

Use a neutralisation station to achieve a pH value of more than 65 (in accordance with prevailing regulations)Discharge the condensates directly into the mains drainage system via a siphon In view of the acidity level (pH 25 to 3) only condensate discharge pipes made from compatible plastic should be used

5 Installation

28 Gas 120 ACE 7717202 - v03 - 24062019

The condensate discharge pipe is located at the rear of the boiler

Do not block the condensate discharge pipeTilt the discharge pipe by at least 30 mm per metre and make sure there are no low points that could cause the accumulation of water or deposits Maximum horizontal length 5 metresDo not drain condensation water into a roof gutterConnect the condensate discharge pipe in accordance with prevailing standardsIt is preferable to use the condensate neutralisers recommended by the manufacturer of the boiler

1 Connect a plastic hose to the condensate discharge outlet (DN 22)2 Insert the other end of the hose into a waste water discharge outlet

556 Filling the siphon

DangerIf operating with the siphon empty combustion products will escape into the premises in which the boiler is installed

1 Pour water into the flue gas pipe (central pipe) until it flows out of the condensate discharge pipe

56 Gas connection

Danger

Close the main gas valve before starting work on the gas pipesThe diameters of the pipes must be defined in accordance with the standards in force in your countryConnect the gas pipe in accordance with prevailing standards and regulationsEnsure that there is no dust in the gas pipe

The gas pipes are not providedIn old gas networks we recommend fitting a gas filter with a low pressure drop upstream of this point

1 Clean the gas supply pipe2 Remove the anti-dust plug located on the boilers gas inlet3 Mount a gas stop valve (not provided) on the boilers gas inlet4 Connect the gas inlet pipe to the gas stop valve

Fig20

MW-2000825-01

pH gt 65

Oslash32A

Fig21

MW-6000742-02

1

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 29

5 Close the gas supply valve before testing the pressure on the gas supply pipe to avoid damage caused by excessive pressure on the gas regulator Decompress before reopening the valve

561 Gas supply

Before mounting check that the gas meter has sufficient capacity (in m3h) To do this you should bear in mind the consumption of all appliances If the capacity of the gas meter is too low inform the gas supply companyThe boilers are preset to run on G20 gas (gas H) and can be adapted to run with the following gases

G31 (gas P)G3031 (gas BP)

ImportantTo use a different type of gas contact an approved assistance service

57 Air supplyflue gas outlet connections

571 Classification

The discharge and intake pipes must be certified for the appropriate configuration and must meet the requirements of the prevailing installation standards in the country

Tab20 Configurations and recommendations for the flue systemConfiguration Principle DescriptionB23B23P

AD-3001055-01

Connection to a chimney using a CE connection kit (single pipe in a flue comshybustion air taken from the boiler room)Follow the connection instructions and adhere to the recommended maximum pipe lengthsComply with the applicable regulations governing ventilation and cross-secshytions for room aeration vents

B33

MW-5000925-1

Room-ventilated version

Without down-draught diverterJoint flue gas discharge via the roof with guaranteed natural draft (at all times underpressure in the joint discharge duct)Flue gas discharge rinsed with air air from the installation area (special conshystruction)The IP rating of the boiler is lowered to IP20

C13C13X

AD-3001056-01

Airflue gas connection using concentric pipes to a horizontal terminal (so-called forced flue) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

5 Installation

30 Gas 120 ACE 7717202 - v03 - 24062019

Configuration Principle DescriptionC33C33X

AD-3001057-01

Airflue gas connection using concentric pipes to a vertical terminal (roof outshylet) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

C43C43X

MW-2000822-01

Airflue gas connection via concentric pipes to a common pipe supplying severshyal heating applicationsThe common pipe has a roof connection to a vertical terminal that draws in the air required for combustion and discharges the combustion productsUse of CE-certified system

C53

AD-3001058-02

Airflue gas connection via separate pipes lead to two separate terminals One draws in the air required for combustion and the other discharges the combusshytion productsThe outlets may be in different pressure zonesDo not install the air supply and discharge on opposing surfacesUse of CE-certified system

C63C63X

The installer is responsible for installing a CE-certified discharge system that complies with the manufacturers recommendations (temperature flow pressure etc)

The maximum pressure drop in the pipes ΔP must not exceed the values given in the table below The pipes must be certified for this type of use and for a temperature of more than 100 degC The terminal part of the flue gas pipe must be certified as complying with the EN 1856-1 StandardIf installing discharge and intake pipes not supplied by Remeha these must be certified for the intended type of use and their maximum pressure drop must be compliant

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 31

Configuration Principle DescriptionC83C83X

MW-2000823-01

Flue gas connection to a collective flue for sealed boilers The air supply is inshydividual via a terminal coming from outside the buildingA concentric pipe can be used to both supply the boiler with combustion air and connect to the collective flue gas discharge systemThe chimney or flue gas pipe must be suitable for such use and the system CE certified

C93C93X

AD-3001059-01

Airflue gas connection via concentric pipes in an existing chimney The air supshyply in the chimney may be installed via the existing channel or via tubing Flue gas discharge and air intake are via a vertical terminal at the top of the chimney

The air intake and discharge must be close enough to be in the same pressure zoneThe minimum cross-sections are shown in the table belowThe flue system must be suitable for the intended use and the system CE certishyfied

Tab21 Minimum dimensions of the duct or pipe C93 C93X

Version (D) Without air supply With air supplyRigid 80 mm Oslash 130 mm 130 x 130 mm Oslash 140 mm 130 x 130 mmRigid 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmRigid 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmFlexible 80 mm Oslash 130 mm 130 x 130 mm Oslash 145 mm 130 x 130 mmFlexible 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmFlexible 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmConcentric 80125 mm Oslash 145 mm 145 x 145 mm Oslash 145 mm 145 x 145 mmConcentric 100150 mm Oslash 170 mm 170 x 170 mm Oslash 170 mm 170 x 170 mmConcentric 150200 mm Oslash 270 mm 270 x 270 mm - -

ImportantThe duct must comply with the air density requirements of the local regulations

Important

Only original components are authorised for connection to the boiler and for the terminalThe clear section must comply with the standardThe chimney must be swept before installing the discharge flue

CautionEnsure that the flue gas discharge pipes are securely attached to the wall with suitable retaining flanges to prevent any damage and guarantee the tightness of every gasket in the circuit

CautionThe minimum gradient of the condensates discharge pipe from the boiler to the waste water discharge must be 1 cm per linear metre

Fig22 Minimum dimensions of the duct or pipe C93 C93X

AD-3000330-03

D

Oslash

D

5 Installation

32 Gas 120 ACE 7717202 - v03 - 24062019

572 Lengths of the airflue gas pipes

The maximum lengths (Lmax) given in the table are valid for pipes in which the horizontal sections do not exceed one metre in total For each additional metre of horizontal pipe a multiplication coefficient of 12 must be applied when calculating the total length L The total length L is calculated by adding the lengths of the straight airflue gas pipes and the equivalent lengths of the other componentsAlways ensure that L is less than Lmax

ImportantFor the list of flue gas system accessories and the equivalent lengths refer to the current price list

Tab22 Lengths of the airflue gas pipes in metresConfigurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 100 mm 26 24 19

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 110 mm 40 40 40

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 110 mm 295 24 175

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 80125 mm - - -

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 100150 mm 9 8 59

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 80125 mm - - -

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 100150 mm 115 10 94

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 80125 mm over 2x80 mm

- - -

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 100150 mm over 2x100 mm

23 175 Air 11Flue gases 5

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm110 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 110150 mm110 mm

16 132 10

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 33

Configurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 110150 mm110 mm

165 135 94

Tab23 PPS pipe reduction for each element used

Diameter 80 mmSingle

80125 mmConcentric

100 mmSingle

100150 mmConcentric

45deg elbow 12 m 10 m 11 m 10 m87deg elbow 19 m 15 m 20 m 37 mStraight inspection tube 03 m 06 m - 10 m87deg inspection elbow 19 m 20 m 48 m -Inspection T 42 m 27 m 56 m 25 mInspection tube for flexible pipe 03 m - 05 m -

573 Dimensions of flue gas outlet pipe

WarningThe pipes connected to the flue gas adapter must satisfy the following dimension requirements

d1 External dimensions of flue gas outlet pipe

Tab24 Dimensions of pipe d1 (min-max)80 mm 793 - 803 mm100 mm 993 - 1003 mm150 mm 149 - 151 mm

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipe

Tab25 Dimensions of pipe d1 (min-max) D1 (min-max)8080 mm 793 - 803 mm 793 - 803 mm100100 mm 993 - 1003 mm 993 - 1003 mm110110 mm 1093 - 1103 mm 1093 - 1103 mm150150 mm 149 - 151 mm 149 - 151 mm

Fig23 Dimensions of open connection

AD-3001094-01

oslashd1

Fig24 Dimensions of parallel connection

AD-3000963-01

oslashd1 oslashD1

5 Installation

34 Gas 120 ACE 7717202 - v03 - 24062019

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipeL1 Length difference between flue gas outlet pipe and air supply pipe

Tab26 Dimensions of pipe d1 (min-max) D1 (min-max) L1

(1) (min-max)80125 mm 793 - 803 mm 124 - 1255 mm 0 - 15 mm100150 mm 993 - 1003 mm 149 - 151 mm 0 - 15 mm

(1) Shorten the inner pipe if the length difference is too great

574 Connection to the flue gas pipe

At delivery the flue gas outletair supply is fixed inside the boiler

1 Using a long tool unlock and remove the boilers front door2 Remove the boiler outlet

3 Two options for connection to the flue gas pipe

Option Description3a Connection to a vertical flue gas pipe Position the flue gas

outletair supply directly at the boiler outlet3b Connection to a horizontal flue gas pipe Insert an outlet elshy

bow ( not supplied) before the flue gas outletair supply

ImportantLubricate the gaskets on the flue system during assembly

Fig25 Dimensions of concentric connection

AD-3000962-01

oslashd1

L1

oslashD1

Fig26

MW-2000867-02

1

2

1

Fig27

3a 3b

MW-2000868-01

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 35

Fastening the coaxial pipes Fasten the intake pipes with two galvanised Oslash 42 mm screws with a maximum length of 16 mm

CautionBefore fixing the screws make sure that at least 45 cm of pipe is inserted in the gasket of the other pipe

WarningGuarantee a minimum pipe slope towards the boiler of at least 5 cm per metre

Fig28 Fastening the coaxial pipes using screws

BO-0000030

16 mm

5 Installation

36 Gas 120 ACE 7717202 - v03 - 24062019

6 Operation

61 Settings

To configure the installation and use the boiler please refer to the control unit manual

6 Operation

7717202 - v03 - 24062019 Gas 120 ACE 37

7 Maintenance

71 General

We recommend having the boiler inspected and serviced at regular intervals

CautionDo not neglect to service the boiler Contact a qualified professional or take out a maintenance contract for the obligatory annual servicing of the boilerFailure to service the appliance voids the warranty

Danger of electric shockBefore service work is started the boiler has to be de-energised and secured from accidentally being switched back on

CautionHave an inspection carried out and the flues swept at least once a year or more depending on the regulations in force in your country

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

CautionAfter maintenance or repair work check the entire heating system to ensure that there are no leaks

CautionOnly genuine spare parts may be used

72 Specific maintenance operations

721 Cleaning the siphon

1 Remove the flue gas outlet discharge pipe

2 Remove the condensate discharge pipe 3 Remove the screw from the siphon

Fig29

1

MW-2000903-01

Fig30

2

3

MW-2000904-01

7 Maintenance

38 Gas 120 ACE 7717202 - v03 - 24062019

4 Pull the siphon downwards to disengage it and pivot it to release it

5 Flush the siphon 6 Drain the siphon

7 Fill the siphon with clean water up to the mark 8 Lubricate the siphon gasket9 Re-engage the siphon and refit the screw

10 Refit the two pipes

722 Checking the ionisation current

1 Check the ionisation current at full load and at low loadThe value is stable after 1 minute

2 Clean or replace the ionisationignition electrode if the value is lower than 4 microA

Fig31

4

90deg

MW-2000905-01

Fig32

MW-2000843-01

Fig33

MW-2000844-01

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 39

723 Replace the ionizationignition electrode

The ionizationignition electrode must be replaced if

The ionization current is lt 4 microAThe electrode is damaged or worn

1 Remove the plug of the electrode from the igniter

ImportantThe ignition cable is fixed to the electrode and therefore may not be removed

2 Remove the two screws3 Remove the entire component4 Fit the new ionizationignition electrode with a new seal5 Reassemble the unit in the reverse order to disassembly

724 Servicing the forced flue connection pipes

1 Open the inspection hatches or remove the pipes2 Check that the air supply and discharge pipes are not blocked

If necessary clean the discharge pipe3 Check the tightness of the flue gas system4 Replace the tightness gaskets and if necessary any sections of pipe

until tightness is perfect

725 Checking the burner and cleaning the heat exchanger

1 Remove the air inlet flue on the venturi2 Loosen the gland on the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

Fig34

AD-0000088-01

4

1

2

3

Fig35 Removing the fan

AD-3001178-01

1

3

4

2

5

7 Maintenance

40 Gas 120 ACE 7717202 - v03 - 24062019

6 Remove the front plate from the heat exchanger7 Carefully lift the front plate including the burner and fan away from

the heat exchanger

8 Use a vacuum cleaner fitted with a special endpiece (accessory) to clean the top part of the heat exchanger (combustion chamber)

9 Vacuum again without the top brush on the end piece10 Clean the lower section of the heat exchanger with the special

cleaning blade (accessory)11 Check (eg using a mirror) whether any visible contamination has

been left behind If it has remove it with the vacuum cleaner12 Check that the burner cover of the dismantled burner is free from

cracks andor damage If not replace the burnerServicing the burner is usually not necessary it is self-cleaning Use compressed air to carefully blow away any dust

13 Reassemble the unit in reverse order

CautionRemember to reconnect the fan plugCheck that the gasket is correctly positioned between the mixing elbow and the heat exchanger (the gasket must lie absolutely flat in the appropriate groove to ensure that no gas can leak)Tighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the front plate nuts with a torque wrench to the firmness of 10 Nm

14 Open the gas supply and switch the power supply to the boiler back on

Fig36 Removing the front plate fan and burner

AD-3001179-01

6

7

Fig37 Cleaning the heat exchanger

AD-3001180-01

10

8 9

12

11

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 41

726 Checking the non-return valve

1 Remove the air inlet pipe from the venturi2 Unscrew the gland of the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

6 Dismantle the fan7 Remove the fan together with the gas valve unit8 Inspect the non-return valve and replace it in the event of a defect or

damage or if the maintenance kit contains a non-return valve9 Reassemble in the reverse order

CautionRemember to reconnect the fan plugTighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the two fan nuts with a torque wrench to the firmness of 38 Nm

Fig38 Disconnecting the fan

AD-3001178-01

1

3

4

2

5

Fig39 Checking the non-return valve

AD-3001181-01

2x

68

7

9

7 Maintenance

42 Gas 120 ACE 7717202 - v03 - 24062019

8 Decommissioning

81 Decommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

To switch off the boiler temporarily or permanently proceed as follows

1 Switch the boiler off2 Cut the electrical power to the boiler3 Close the gas valve on the boiler4 Drain the central heating system or ensure frost protection5 Close the door of the boiler to prevent air circulating inside it6 Remove the pipe connecting the boiler to the chimney and close the

nozzle with a plug

82 Recommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

Should it prove necessary to carry out the recommissioning of the boiler proceed as follows

1 Re-establish electrical power to the boiler2 Fit and check the flue gas pipe3 Fill the siphon with water4 Fill the central heating system5 Open the boiler gas valve6 Start up the boiler

8 Decommissioning

7717202 - v03 - 24062019 Gas 120 ACE 43

9 Disposal and recyclingCautionOnly qualified professionals are permitted to remove and dispose of the boiler in accordance with local and national regulations

If you need to remove the boiler proceed as follows

1 Switch off the boiler2 Cut the power supply to the boiler3 Close the main gas valve4 Close the water mains5 Close the gas valve on the boiler6 Drain the installation7 Remove the airflue gas pipes8 Disconnect all pipes9 Dismantle the boiler

Fig40

MW-3000179-03

9 Disposal and recycling

44 Gas 120 ACE 7717202 - v03 - 24062019

10 Environmental

101 Energy savings

Energy-saving advice

Do not block ventilation outletsDo not cover the radiators Do not hang curtains in front of the radiatorsInstall reflective panels behind the radiators to prevent heat lossesInsulate the pipes in rooms that are not heated (cellars and lofts)Close the radiators in rooms not in useDo not run hot (or cold) water pointlesslyInstall an energy-saving shower head which can save up to 40 energyTake showers rather than baths A bath consumes twice as much water and energy

102 Room thermostat and settings

Various models of room thermostat are available The type of thermostat used and the parameter selected impact total energy consumption

A modulating regulator which may be combined with thermostatic valves is eco-friendly in terms of energy and offers an excellent level of comfort This combination allows you to set the temperature separately for each room However do not install thermostatic radiator valves in the room in which the room thermostat is locatedComplete opening and closing of the thermostatic radiator valves causes undesirable variations in temperature Therefore these must be openedclosed progressivelySet the room thermostat to a temperature of approximately 20degC to reduce heating costs and energy consumptionLower the thermostat setting to approximately 16degC at night or when you are not at home This reduces heating costs and energy consumptionLower the thermostat setting well before airing the roomsSet the water temperature to a lower level in summer than in winter (eg 60degC and 80degC respectively) when an ONOFF thermostatis usedWhen clock thermostats and programmable thermostats are to be set do not forget to take any holidays and days when no one is at home into account

10 Environmental

7717202 - v03 - 24062019 Gas 120 ACE 45

11 Warranty

111 General

We would like to thank you for buying one of our appliances and for your trust in our productIn order to ensure continued safe and efficient operation we recommend that the product is regularly inspected and maintainedYour installer and our service department can assist with this

112 Terms of warranty

The following provisions do not affect the application in favour of the buyer of the legal provisions with regard to hidden defects that are applicable in the buyers countryThis appliance comes with a warranty that covers all manufacturing faults the warranty period will commence on the date of purchase stated on the installers invoiceThe warranty period is stated in our price listAs a manufacturer we can by no means be held liable if the appliance is used incorrectly is poorly maintained or not maintained at all or is not installed correctly (it is your responsibility to ensure that installation is carried out by a qualified installer)In particular we cannot be held liable for material damage intangible losses or physical injury resulting from an installation that does not comply with

Legal or regulatory requirements or provisions laid down by the local authoritiesNational or local regulations and special provisions relating to the installationOur manuals and installation instructions in particular in terms of regular maintenance of the appliances

Our warranty is limited to the replacement or repair of the parts found to be defective by our technical services team excluding labour transfer and transport costsOur warranty does not cover replacement or repair costs for parts that may become defective due to normal wear incorrect usage the intervention of unqualified third parties inadequate or insufficient supervision or maintenance a mains supply that is not appropriate or the use of unsuitable or poor quality fuelSmaller parts such as motors pumps electrical valves etc are guaranteed only if these parts have never been dismantledThe rights established in European Directive 9944EEC implemented by legal decree No 24 of 2 February 2002 and published in Official Journal No 57 of 8 March 2002 remain in force

11 Warranty

46 Gas 120 ACE 7717202 - v03 - 24062019

12 Spare parts

121 General

If inspection or maintenance work bring to light the need to replace a component in the boilerProvide the reference number given in the spare parts list when ordering a spare part

CautionOnly genuine spare parts may be used

122 Spare parts lists

1221 Exchanger

Fig41

MW-6000743-01

811x

7

7

4

2

16

3

10

119

65

1

13

12

18

14

19

15

18

17

Tab27

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

1 7699615 Complete exchanger x 1 7699614 Complete exchanger x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 47

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

2 S101564 Exchanger front plate x x x3 S54731 Exchanger inspection hatch insulation x x x4 S57241 Exchanger inspection hatch gasket x x x5 S100052 M4x10 self-locking screw (x20) x x x6 S54754 FURQ65 burner x 6 S57477 FURQ85 burner x x7 7623837 Set of 10 k NTC sensors x x x8 S54755 M6 nut (x20) x x x9 7659755 M4x10 screw (x10) x x x10 S53489 Electrode gasket (x10) x x x11 7692359 Ignition electrode x x x12 7631936 Flue gas flow pipe diameter 100 mm x x x13 7624643 NTC 2x20 k flue gas sensor with gasket x x x14 7624619 Ignition transformer x x x15 S56987 ZP M6x16 screw (x10) x x x16 7616253 Valve with support x x x17 7680596 Exchanger bracket x 17 7673616 Exchanger bracket x x18 7701752 Gasket diameter 100 mm (x5) x x x19 7632708 Earth electric clip (x2) x x x

1222 Gas circuit

Fig42

MW-6000744-01

3

2

5

6

9

4

8

10

7

12

11

1

14

13

13

12 Spare parts

48 Gas 120 ACE 7717202 - v03 - 24062019

Tab28Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 S101543 Silencer x 1 S101520 Silencer x 1 S101578 Silencer x2 S54777 Venturi gasket (x5) x 2 S59215 Gas valve-venturi gasket (x5) x 2 S101593 Gaskets (kit) x3 S101726 Fan RG 1481200-3633 x x 3 S100036 Fan RG 148 1200-3633-010202 x4 S101596 Gas valve VK4115v1386 x 4 S101597 Gas valve VK4115vb1012 x 4 S101510 Gas valve GB-ND 057 XP x5 S54766 Venturi x 5 S57488 Venturi x 5 S101595 Venturi VMS 45900450-010 x6 S59215 Gas valve-venturi gasket (x5) x x 7 S57827 Gas valve unit flange x8 S57828 268x22x25 O-ring (x5) x9 S101631 Diaphragm x10 7616249 Flue gas sensor cap (5x) x x x11 S56155 238x177x2 gasket (x20) x x x12 95760050 C HC M4-12 88 ZN3 screw x x x13 S48512 M5-10 screw (x10) x x x14 S101590 Silencer retaining clip x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 49

1223 Hydraulic circuit

Fig43

MW-6000745-01

1

14

6

9

11

8

12

5

37

9

10

2

4

13

Tab29Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7680598 Complete flow pipe x 1 7670807 Complete flow pipe x x2 7672557 Complete return pipe x x x3 7674076 Complete gas pipe x 3 7680434 Complete gas pipe x 3 7670720 Complete gas pipe x4 7698560 HUBA G38 pressure gauge x x x5 94994712 PVC pipe diameter 16x12 x x x6 7699357 Water deflector diameter 100 mm x x x7 94902073 Drain valve 12 x x x8 94918138 Air vent x x x9 95013064 44x32x2 mm green gasket x x x10 95013060 24x17x2 mm green gasket x x 10 95013062 30x21x12 mm green gasket x11 7692329 Condensate hose x x x13 7706103 Assembled siphon height 160 mm x 13 7706038 Assembled siphon height 250 mm x x14 7103731 Condensate drain pan gasket x x x

12 Spare parts

50 Gas 120 ACE 7717202 - v03 - 24062019

1224 Boiler body

Fig44

MW-6000746-01

2

2

1

6

3

34

5

4

Tab30Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7686377 Assembled frame x 1 7686139 Assembled frame x x2 7679958 117x34 handle diameter 65 mm x x x3 7676037 Wheel x x x4 7688301 Frame lateral gasket x 4 7688008 Frame lateral gasket x x5 7688353 Front panel gasket x 5 7688007 Front panel gasket x x6 7693874 R4-05 front panel lock x x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 51

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

E toimistoestsystemsfi

Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 15: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

Tab10 Minimum flow to be guaranteedMinimum flow to be guaranteed in the boiler Unit Gas 120 ACE -

65Gas 120 ACE -

90Gas 120 ACE -

115Minimum flow rate litreshour 290 340 455

A Dynamic head in mWcB Water flow rate (m3h)C Pressure drops

ΔT Maximum temperature difference between the flow water and the return water in the boiler

A Dynamic head in mWcB Water flow rate (m3h)C Pressure drops

ΔT Maximum temperature difference between the flow water and the return water in the boiler

A Dynamic head in mWcB Water flow rate (m3h)C Pressure drops

ΔT Maximum temperature difference between the flow water and the return water in the boiler

323 Sensor specifications

Outside temperature sensor specifications

Tab11 Outside temperature sensorTemperature degC -20 -16 -12 -8 -4 0 4 8 12 16 20 24Resistance Ω

(Ohm)2392 2088 1811 1562 1342 1149 984 842 720 616 528 454

Fig2 Pressure drops for Gas 120 ACE - 65

MW-2000671-3

T=20KT=40K

175

Fig3 Pressure drops for Gas 120 ACE - 90

MW-2000673-3

T=20KT=40K

362

Fig4 Pressure drops for Gas 120 ACE - 115

MW-2000674-3

T=20KT=35K

447

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 15

Boiler sensor return sensor

Tab12 Boiler sensor return sensorTemperature in degC

-20 -10 0 10 20 25 30 40 50 60 70 80 90 100 110

Resistance in Ω

98932 58879 36129 22804 14773 10000 9804 6652 4607 3252 2337 1707 1266 952 726

Circuit flow sensor domestic hot water sensor and system sensor

Tab13 Circuit flow sensor domestic hot water sensor and system sensorTemperature in degC 0 10 20 25 30 40 50 60 70 80 90Resistance in Ω 32014 19691 12474 10000 8080 5372 3661 2535 1794 1290 941

Specifications of the boiler flue gas sensor

Tab14 Boiler flue gas sensorTemperature degC 0 10 20 30 40 50 60 70 80 90 100Resistance Ohm 66000 40000 20000 16100 10600 7160 4940 3480 2490 1810 1340

33 Dimensions and connections

Fig5

MW-2000684-03

A

D

E

FG

BC

600 605150

92

132

240

141

418

5

2

34

107

105

95

100

1

255145

1 Heating circuit flow (R114)2 Gas inlet (G34)3 Heating circuit return (R114)

4 Condensate discharge (DN22)5 Flue gas pipe

Tab15 Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 1155 Diameter 100150 mm Diameter 100150 mm Diameter 100150 mmA (mm) 1340 1562 1562B (mm) 1164 1386 1386C (mm) 1082 1304 1304D (mm) 971 1193 1193

3 Technical specifications

16 Gas 120 ACE 7717202 - v03 - 24062019

Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 115E (mm) 410 632 632F (mm) 87 303 303G (mm) 128 350 350

34 Electrical diagram

341 Electrical diagram of boiler

Fig6

CU-GH-08

X3X4X5

X6

X8

1

2

3

1

2

3

X14

X7

X10

X11

X13

X12

1

2

3

4

5

25 A

Nrsquo

1

2

3

4

YE

GY

BR

GR

1

2

3

4

1

2

3

4

1

2

N L

1

2

1

2

OPTION

PRESSURE

SWITCH

MW-2000850-04

230V

1 2 3 4 5 6 7 8 9 10

24V

12 11

BL OR

10 9 8 7 6

GR BK RE YE BL

5 4 3 2 1

OR BK RE YE BL

Lrsquo

BL

GY

GY

GY

BL BR

GY

BL

BR

GY BL

BR

GY

BR

GR BK RE YE BL OR BK RE YE BL

BK

BL

BR

RE

GR

GR

BK

GR

GY

YE

BR

BL

OR

1

2

3

4

5

1

2

3

RE

BK

GR

BR

BK

BL

GR

1

2

BR

GR

GY

RE BL

BL

BK

BK

BR YE

GR PI

BL

BL

GR

PI

GR

RE

BR

YE

BK

BK

BR

GY

BL

BL

BR

GY

GY

BR

BL BL GY

BR

BL

BR

BK

GYWH

GY

BL

GY

BL

BR

BK

WH

BL

GY

1 12

4

5

2

3

6

7

8

9

10

11

16

17

15

14

13

1 230 V connector connection with control unit2 Mains interference filter3 Earthing of boiler front door4 Return sensor (TR)5 Flow sensor (FTS)6 Flue gas sensor7 Flue gas pressure switch (specific option for the

Netherlands)8 Gas valve unit (GB)9 Igniter (IT)

10 Ionizationignition electrode (E)11 Fan supply12 24 V connector connection with control unit13 Storage information (CSU)14 Pressure sensor (PS)15 Fan control (PWM)16 Light17 Control unit (CU-GH08)BK BlackBL Blue

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 17

BR BrownGY GreenYellowYE YellowOR OrangeGR Green

PI PinkGY GreyRD RedWH White

3 Technical specifications

18 Gas 120 ACE 7717202 - v03 - 24062019

4 Description of the product

41 General description

Gas 120 ACE floor-standing condensing gas boilers have the following characteristics

Low polluting emissionsHigh-efficiency heatingElectronic control panelFlue gas discharge by a forced flue or chimney type connection with bi-flow option

The boilers are perfectly suited to cascade installation

42 Operating principle

421 Gasair setting

The casing fitted to the boiler is also used as an air box Air is drawn in by the fan and gas injected into the Venturi by the fan intake The fan speed is modulated according to the settings the heat demand and the actual temperatures measured by the temperature sensors The gas and air are mixed in the Venturi The gasair ratio command function accurately adjusts the quantities of gas and air required This provides optimum combustion over the entire output range The gasair mixture is sent to the burner located upstream of the heat exchanger

422 Settings and safety devices

ImportantThe settings and safety devices are only operational if the boiler is powered up

Tab16 Description of the safety devicesDevice DescriptionNTC flue gas sensor The control panel blocks the gas supply to the burner in the event of overheatingFlame detector by ionisation The boiler is put into safety lock-down in the event of gas shortage or incomplete cross-

lighting on the burnerHydraulic pressure switch When the pressure switch detects a pressure lower than 08 bar (008 MPa) a warning

message is displayed without stopping the circulating pumpPost-circulating pump After the burner stops depending on the room thermostat setting and if in heating

mode the circulating pump runs for a further 3 minutesFrost protection device When the flow temperature is lower than 5 degC the burner starts up and runs until the

flow temperature reaches 15 degC This device runs under the following conditions

The boiler is switched onThe gas supply is workingThe pressure in the system is higher than 05 bar (005 MPa)

Anti-blocking of the pump If there are no heating or domestic hot water requirements for 24 consecutive hours the pumps start up automatically and run for 10 seconds

Anticipatory start-up of the circulatshying pumps

In heating mode only the appliance can start up the circulating pumps before burner igshynition The duration and activation of anticipatory start-up depends on the installation reshyquirements and the operating temperatures The duration of anticipatory start-up of the circulating pumps therefore varies from a few seconds to several minutes

4 Description of the product

7717202 - v03 - 24062019 Gas 120 ACE 19

43 Main boiler components

1 Control unit2 Flow sensor3 Light4 Ignitionionization electrode5 Non-return valve6 Gas valve7 Heat exchanger (heating circuit)8 Return sensor9 Pressure gauge sensor

10 CU-GH-08 PCB housing11 Siphon12 Flue gas circuit13 Intake silencer14 Venturi15 Flue gas sensor16 Fan17 Automatic air vent18 Flue gas measuring point19 Combustion air measuring point20 Flue gas outletair supply

44 PCBs

441 Description of the CU-GH-08 PCB

This PCB controls the core boiler components sensors actuators and gas valveThis PCB is factory-fitted and fully cabled and does not require any operationThe sensors valves circulating pumps etc are connected at the control unit

45 Standard delivery

The Gas 120 ACE boiler comes in 2 packages including

Tab17 Package contentsPackage ContentPackage 1 A floor-standing gas boiler

A flue system outlet with a measuring point (stored in the boiler)An outdoor temperature sensorA data plateAn installation and service manual

Package 2 A control unitTwo control unit mounting bolts on the boilerA user manual

46 Accessories amp options

A detailed list of accessories and options can be found in our catalogue

Fig7

MW-2000670-02

16

7 13

12

11

10

19

18

20

17

14

15

6

5

2

9

4

3

1

8

4 Description of the product

20 Gas 120 ACE 7717202 - v03 - 24062019

5 Installation

51 Installation regulations

CautionInstallation of the boiler must be done by a qualified professional in accordance with prevailing local and national regulations

CautionA disconnection device must be fitted to the permanent pipes in accordance with the installation rules

CautionRespect the maximum water inlet pressure to ensure correct operation of the appliance referring to the Technical Specifications chapter

52 Choice of the location

Decide on the ideal position for installation bearing in mind any legal directives and the space required by the appliance

Install the boiler on a solid stable structure capable of bearing the weight of the appliance when full of water and fully equippedWhen choosing the position for installation of the boiler bear in mind the positions authorised for the combustion gas discharge outlets and the air intake ventDo not install the boiler near any heat sources

521 Data plate

The data plate is located on the back of the boilerThe data plate provides important information regarding the appliance

Serial numberModelGas categoryCN1CN2etc

Once installation is complete the second data plate supplied in the documentation bag can be affixed to a more visible part of the boilerIf the boiler is equipped with a hydraulic kit (low-loss header or plate heat exchanger) affix the data plate to the side of the boiler

522 Space required - Boiler ventilation

Decide on the ideal position for installation bearing in mind any legal directives and the space required by the appliance

Install the boiler on a solid stable structure capable of bearing the weight of the appliance when full of water and fully equippedWhen choosing the position for installation of the boiler bear in mind the positions authorised for the combustion gas discharge outlets and the air intake ventDo not install the boiler near any heat sources

Fig8

MW-6000735-01

Made in France0085

CN1 17

CN2 7

230 V 50 Hz

B23(P) - B33 - C13(X) - C33(X) - C43(X) - C53 - C63(X) - C83(X) - C93(X)

PMS= 4bar - 04MPa

Pn =

8060 degC

5030 degC

NOx class 6 (Nox lt 56 mgkWh)

Qn =Hi kW

4030 degC

189-1039

196-1070

212-1097

180W

0085CT009

Hs (G20) 217-1189

IP21Imax= 10A

Tmax= 90degC

FR

LT

IT

AT

CZ

PL

II2Esi3BP

II2H3BP

II2H3BP

II2H3BP

II2H3P

II2H3BP

II2H3BP

II2ELw3BP

G20-20mbar G25-25mbar G30G31-303750mbar

G20-20mbar G30G31 - 30mbar

G20-20mbar G30G31 - 303750 mbar

G20-20mbar G30G31 - 3037mbar

G20-20mbar G31 - 30mbar

G20-20mbar G30G31 - 50mbar

G20-20mbar G30G31-303750mbar

G20-20mbar G27-20mbar G3031-37mbar

kW

Art Nr SN A0000YYWW000

kW

kW

kW

kW

kW

ESGR PT

LU RO EE

YY-WW

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 21

Keep the boiler accessible at all timesPlace the boiler on a base to make it easier to clean the roomThe boiler can be located along a partition on one of its sides provided there is a 500 mm space on the opposite sideAllow enough space around the boiler to facilitate accessibility and maintenance The minimum recommended dimensions are shown in the illustrationMake sure there is a connection to the water drainage system close to the boiler to discharge any condensates

ImportantTo fit the boiler position the pallet with the package 25 m in front of the desired location for the installation This distance is required to allow the boiler to be removed from its pallet

Tab18Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 115

A (mm) 500 500 500B (mm) 1082 1304 1304

To allow the intake of combustion air sufficient ventilation must be provided in the boiler room the cross section and position of which must satisfy the regulations in force

Great Britain BS 5440 Part 1 and Part 2

For boilers with a nominal output of more than 70 kW Upper and lower air vents comshypulsory

BS 6644 and IGEMUP-10

Caution

Avoid any low points in the flue gas and condensate discharge circuit in order to prevent any accumulation of condensatesDo not block the air inlets in the room or the combustion product evacuation or condensation water flow pipes (even partially)

If the boiler is installed in closed premises respect the minimum dimensions given in the diagram below Also allow for openings to obviate the following hazards

Accumulation of gasOverheating of the premisesGreat Britain Minimum cross section of openings see BS 5440 Part 1 and Part 2 and BS 6644

523 Ventilation

To allow the intake of combustion air sufficient ventilation must be provided in the boiler room for which the cross section and position must satisfy the regulations in force in the country in which the boiler is installed

Great Britain BS 5440 Part 1 and Part 2

For boilers with a nominal output of more than 70 kW Upper and lower air vents comshypulsory

BS 6644 and IGEMUP-10

Fig9

MW-2000679-03

500

B

1100

AS1

S2

260

580

350

600

500

5 Installation

22 Gas 120 ACE 7717202 - v03 - 24062019

If the boiler is installed in closed premises respect the minimum dimensions given in the diagram below Also allow for openings to obviate the following hazards

Accumulation of gasOverheating of the premisesGreat Britain Minimum cross section of openings see BS 5440 Part 1 and Part 2 and BS 6644

524 Fitting the outdoor sensor

Plugs diameter 4 mmdrill diameter 6 mm

1 Choose a recommended location for the outdoor sensor2 Put the 2 plugs in place delivered with the sensor3 Secure the sensor using the screws provided (diameter 4 mm)4 Connect the cable to the outdoor temperature sensor

Recommended positions

Place the outside sensor in a position that covers the following characteristics

On a faccedilade of the area to be heated on the north if possibleHalf way up the wall of the area to be heatedUnder the influence of changes in the weatherProtected from direct sunlightEasy to access

Fig11

MW-8800N001-3

2

1

2

11

2

H

12 H (min 25 m)

12 H (min 25 m)

12 Z

H

Z

1 Optimum location2 Possible position

H Inhabited height controlled by the sensorZ Inhabited area controlled by the sensor

Positions to be avoided

Avoid placing the outside sensor in a position with the following characteristics

Masked by part of the building (balcony roof etc)Close to a disruptive heat source (sun chimney ventilation grid etc)

Fig10

MW-8800N003-6

23

4

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 23

Fig12

MW-3000014-2

53 Transport

Transport the boiler pallet with a manual or electric pallet truck

54 Unpacking and preparing the boiler

Caution

Wear gloves to handle the boilerTransport the boiler pallet with a manual or electric pallet truckUse carrying bars (not provided) to move the boiler

ImportantTo fit the boiler position the pallet with the package 25 m in front of the desired location for the installation This distance is required to allow the boiler to be removed from its pallet

1 Cut the packaging2 Remove the packaging from the boiler but leave the boiler on the

shipping pallet

ImportantThe documentation bag (user manual + accessories) is contained in the protective block

Fig13

MW-6000736-01

Manual

11

12

5 Installation

24 Gas 120 ACE 7717202 - v03 - 24062019

3 Using a long tool unlock and remove the boilers front door Disconnect the earth wire

4 Remove the mounting bolts from the unloading ramps and the boiler (4 bolts at the rear and 4 bolts at the front)

5 Pull out the unloading ramps and turn them over6 Align the ramps with the rear castor wheels on the boiler

Fig14

MW-6000761-01

3

3

Fig15

MW-6000737-01

4

4

Fig16

MW-6000738-01

5

5

6

6

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 25

7 Lock the ramps correctly onto the pallet8 Screw the unloading ramps onto the pallet9 Fold down the ends of the ramp so that they rest on the ground

10 Tilt the boiler backwards until it is resting on the castor wheels then remove it from the pallet

11 Recycle the pallet

Fig17

MW-6000770-01

9

9

8

7

Fig18

MW-6000739-02

600

350

11

10

550

5 Installation

26 Gas 120 ACE 7717202 - v03 - 24062019

12 Level the boiler using the adjustable feet(1) Factory setting 30 mm adjustment range 20 to 40 mm

CautionThe rear castor wheels must no longer be in contact with the ground

55 Hydraulic connections

551 Water treatment

In many cases the boiler and the heating system can be filled with mains water without treating the water

CautionDo not add any chemical products to the heating water without first consulting a water treatment specialist For example antifreeze water softeners products to increase or reduce the pH value chemical additives andor inhibitors These may cause faults in the boiler and damage the heat exchanger

Important

Flush the installation with at least 3 times the volume of water contained in the heating systemFlush the DHW circuit with at least 20 times its volume of water

The water in the installation must comply with following specifications

Tab19 Installation water specifications Initial commissioning Concentration (top up)Degree of acidity (untreated water) pH 65 - 85 65 - 85

Degree of acidity (treated washyter) pH 70 - 90 70 - 90

Conductivity at 25degC μScm le 500 le 500Chlorides mglitre le 50 le 50Other components mglitre lt 1 lt 1

Total water hardnessdegf 5 - 35 le 15degdH 28 - 200 le 85mmollitre(1) 05 - 35 lt 15

(1) Flow temperature less than 90degC mdash Maximum hardness 150 mmoll

Fig19

MW-6000773-01

(1)

12

12

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 27

ImportantIf water treatment proves necessary Remeha recommends the following manufacturers

CillitClimalifeFernoxPermoSentinel

552 Flushing new installations and installations less than 6 months old

Before filling the heating installation it is essential to remove any debris (copper caulking soldering flux) from the installation

1 Clean the installation with a powerful universal cleaner2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

553 Flushing an existing installation

Before filling the heating installation it is essential to remove any sludge deposits which have accumulated in the heating circuit over the years

1 Remove any sludge from the installation2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

554 Connecting the heating circuit

ImportantAbide by the information shown in the hydraulic diagrams

The pipes are not provided

Caution

The heating pipe must be mounted in accordance with the provisions applicableIf installing stop valves position the filldrain valve and the expansion vessel between the stop valves and the boilerAlways install a safety valve calibrated to a maximum of 4 bar on the heating circuit The safety valve can be connected to a venting pot The safety valve must not be used to drain the heating circuitIt is recommended to install a sludge collector on all installations

SeeIf fitting with a hydraulic kit (low-loss header or plate heat exchanger) refer to the kit manual

555 Connecting the condensate discharge pipe

Use a neutralisation station to achieve a pH value of more than 65 (in accordance with prevailing regulations)Discharge the condensates directly into the mains drainage system via a siphon In view of the acidity level (pH 25 to 3) only condensate discharge pipes made from compatible plastic should be used

5 Installation

28 Gas 120 ACE 7717202 - v03 - 24062019

The condensate discharge pipe is located at the rear of the boiler

Do not block the condensate discharge pipeTilt the discharge pipe by at least 30 mm per metre and make sure there are no low points that could cause the accumulation of water or deposits Maximum horizontal length 5 metresDo not drain condensation water into a roof gutterConnect the condensate discharge pipe in accordance with prevailing standardsIt is preferable to use the condensate neutralisers recommended by the manufacturer of the boiler

1 Connect a plastic hose to the condensate discharge outlet (DN 22)2 Insert the other end of the hose into a waste water discharge outlet

556 Filling the siphon

DangerIf operating with the siphon empty combustion products will escape into the premises in which the boiler is installed

1 Pour water into the flue gas pipe (central pipe) until it flows out of the condensate discharge pipe

56 Gas connection

Danger

Close the main gas valve before starting work on the gas pipesThe diameters of the pipes must be defined in accordance with the standards in force in your countryConnect the gas pipe in accordance with prevailing standards and regulationsEnsure that there is no dust in the gas pipe

The gas pipes are not providedIn old gas networks we recommend fitting a gas filter with a low pressure drop upstream of this point

1 Clean the gas supply pipe2 Remove the anti-dust plug located on the boilers gas inlet3 Mount a gas stop valve (not provided) on the boilers gas inlet4 Connect the gas inlet pipe to the gas stop valve

Fig20

MW-2000825-01

pH gt 65

Oslash32A

Fig21

MW-6000742-02

1

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 29

5 Close the gas supply valve before testing the pressure on the gas supply pipe to avoid damage caused by excessive pressure on the gas regulator Decompress before reopening the valve

561 Gas supply

Before mounting check that the gas meter has sufficient capacity (in m3h) To do this you should bear in mind the consumption of all appliances If the capacity of the gas meter is too low inform the gas supply companyThe boilers are preset to run on G20 gas (gas H) and can be adapted to run with the following gases

G31 (gas P)G3031 (gas BP)

ImportantTo use a different type of gas contact an approved assistance service

57 Air supplyflue gas outlet connections

571 Classification

The discharge and intake pipes must be certified for the appropriate configuration and must meet the requirements of the prevailing installation standards in the country

Tab20 Configurations and recommendations for the flue systemConfiguration Principle DescriptionB23B23P

AD-3001055-01

Connection to a chimney using a CE connection kit (single pipe in a flue comshybustion air taken from the boiler room)Follow the connection instructions and adhere to the recommended maximum pipe lengthsComply with the applicable regulations governing ventilation and cross-secshytions for room aeration vents

B33

MW-5000925-1

Room-ventilated version

Without down-draught diverterJoint flue gas discharge via the roof with guaranteed natural draft (at all times underpressure in the joint discharge duct)Flue gas discharge rinsed with air air from the installation area (special conshystruction)The IP rating of the boiler is lowered to IP20

C13C13X

AD-3001056-01

Airflue gas connection using concentric pipes to a horizontal terminal (so-called forced flue) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

5 Installation

30 Gas 120 ACE 7717202 - v03 - 24062019

Configuration Principle DescriptionC33C33X

AD-3001057-01

Airflue gas connection using concentric pipes to a vertical terminal (roof outshylet) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

C43C43X

MW-2000822-01

Airflue gas connection via concentric pipes to a common pipe supplying severshyal heating applicationsThe common pipe has a roof connection to a vertical terminal that draws in the air required for combustion and discharges the combustion productsUse of CE-certified system

C53

AD-3001058-02

Airflue gas connection via separate pipes lead to two separate terminals One draws in the air required for combustion and the other discharges the combusshytion productsThe outlets may be in different pressure zonesDo not install the air supply and discharge on opposing surfacesUse of CE-certified system

C63C63X

The installer is responsible for installing a CE-certified discharge system that complies with the manufacturers recommendations (temperature flow pressure etc)

The maximum pressure drop in the pipes ΔP must not exceed the values given in the table below The pipes must be certified for this type of use and for a temperature of more than 100 degC The terminal part of the flue gas pipe must be certified as complying with the EN 1856-1 StandardIf installing discharge and intake pipes not supplied by Remeha these must be certified for the intended type of use and their maximum pressure drop must be compliant

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 31

Configuration Principle DescriptionC83C83X

MW-2000823-01

Flue gas connection to a collective flue for sealed boilers The air supply is inshydividual via a terminal coming from outside the buildingA concentric pipe can be used to both supply the boiler with combustion air and connect to the collective flue gas discharge systemThe chimney or flue gas pipe must be suitable for such use and the system CE certified

C93C93X

AD-3001059-01

Airflue gas connection via concentric pipes in an existing chimney The air supshyply in the chimney may be installed via the existing channel or via tubing Flue gas discharge and air intake are via a vertical terminal at the top of the chimney

The air intake and discharge must be close enough to be in the same pressure zoneThe minimum cross-sections are shown in the table belowThe flue system must be suitable for the intended use and the system CE certishyfied

Tab21 Minimum dimensions of the duct or pipe C93 C93X

Version (D) Without air supply With air supplyRigid 80 mm Oslash 130 mm 130 x 130 mm Oslash 140 mm 130 x 130 mmRigid 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmRigid 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmFlexible 80 mm Oslash 130 mm 130 x 130 mm Oslash 145 mm 130 x 130 mmFlexible 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmFlexible 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmConcentric 80125 mm Oslash 145 mm 145 x 145 mm Oslash 145 mm 145 x 145 mmConcentric 100150 mm Oslash 170 mm 170 x 170 mm Oslash 170 mm 170 x 170 mmConcentric 150200 mm Oslash 270 mm 270 x 270 mm - -

ImportantThe duct must comply with the air density requirements of the local regulations

Important

Only original components are authorised for connection to the boiler and for the terminalThe clear section must comply with the standardThe chimney must be swept before installing the discharge flue

CautionEnsure that the flue gas discharge pipes are securely attached to the wall with suitable retaining flanges to prevent any damage and guarantee the tightness of every gasket in the circuit

CautionThe minimum gradient of the condensates discharge pipe from the boiler to the waste water discharge must be 1 cm per linear metre

Fig22 Minimum dimensions of the duct or pipe C93 C93X

AD-3000330-03

D

Oslash

D

5 Installation

32 Gas 120 ACE 7717202 - v03 - 24062019

572 Lengths of the airflue gas pipes

The maximum lengths (Lmax) given in the table are valid for pipes in which the horizontal sections do not exceed one metre in total For each additional metre of horizontal pipe a multiplication coefficient of 12 must be applied when calculating the total length L The total length L is calculated by adding the lengths of the straight airflue gas pipes and the equivalent lengths of the other componentsAlways ensure that L is less than Lmax

ImportantFor the list of flue gas system accessories and the equivalent lengths refer to the current price list

Tab22 Lengths of the airflue gas pipes in metresConfigurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 100 mm 26 24 19

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 110 mm 40 40 40

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 110 mm 295 24 175

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 80125 mm - - -

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 100150 mm 9 8 59

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 80125 mm - - -

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 100150 mm 115 10 94

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 80125 mm over 2x80 mm

- - -

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 100150 mm over 2x100 mm

23 175 Air 11Flue gases 5

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm110 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 110150 mm110 mm

16 132 10

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 33

Configurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 110150 mm110 mm

165 135 94

Tab23 PPS pipe reduction for each element used

Diameter 80 mmSingle

80125 mmConcentric

100 mmSingle

100150 mmConcentric

45deg elbow 12 m 10 m 11 m 10 m87deg elbow 19 m 15 m 20 m 37 mStraight inspection tube 03 m 06 m - 10 m87deg inspection elbow 19 m 20 m 48 m -Inspection T 42 m 27 m 56 m 25 mInspection tube for flexible pipe 03 m - 05 m -

573 Dimensions of flue gas outlet pipe

WarningThe pipes connected to the flue gas adapter must satisfy the following dimension requirements

d1 External dimensions of flue gas outlet pipe

Tab24 Dimensions of pipe d1 (min-max)80 mm 793 - 803 mm100 mm 993 - 1003 mm150 mm 149 - 151 mm

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipe

Tab25 Dimensions of pipe d1 (min-max) D1 (min-max)8080 mm 793 - 803 mm 793 - 803 mm100100 mm 993 - 1003 mm 993 - 1003 mm110110 mm 1093 - 1103 mm 1093 - 1103 mm150150 mm 149 - 151 mm 149 - 151 mm

Fig23 Dimensions of open connection

AD-3001094-01

oslashd1

Fig24 Dimensions of parallel connection

AD-3000963-01

oslashd1 oslashD1

5 Installation

34 Gas 120 ACE 7717202 - v03 - 24062019

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipeL1 Length difference between flue gas outlet pipe and air supply pipe

Tab26 Dimensions of pipe d1 (min-max) D1 (min-max) L1

(1) (min-max)80125 mm 793 - 803 mm 124 - 1255 mm 0 - 15 mm100150 mm 993 - 1003 mm 149 - 151 mm 0 - 15 mm

(1) Shorten the inner pipe if the length difference is too great

574 Connection to the flue gas pipe

At delivery the flue gas outletair supply is fixed inside the boiler

1 Using a long tool unlock and remove the boilers front door2 Remove the boiler outlet

3 Two options for connection to the flue gas pipe

Option Description3a Connection to a vertical flue gas pipe Position the flue gas

outletair supply directly at the boiler outlet3b Connection to a horizontal flue gas pipe Insert an outlet elshy

bow ( not supplied) before the flue gas outletair supply

ImportantLubricate the gaskets on the flue system during assembly

Fig25 Dimensions of concentric connection

AD-3000962-01

oslashd1

L1

oslashD1

Fig26

MW-2000867-02

1

2

1

Fig27

3a 3b

MW-2000868-01

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 35

Fastening the coaxial pipes Fasten the intake pipes with two galvanised Oslash 42 mm screws with a maximum length of 16 mm

CautionBefore fixing the screws make sure that at least 45 cm of pipe is inserted in the gasket of the other pipe

WarningGuarantee a minimum pipe slope towards the boiler of at least 5 cm per metre

Fig28 Fastening the coaxial pipes using screws

BO-0000030

16 mm

5 Installation

36 Gas 120 ACE 7717202 - v03 - 24062019

6 Operation

61 Settings

To configure the installation and use the boiler please refer to the control unit manual

6 Operation

7717202 - v03 - 24062019 Gas 120 ACE 37

7 Maintenance

71 General

We recommend having the boiler inspected and serviced at regular intervals

CautionDo not neglect to service the boiler Contact a qualified professional or take out a maintenance contract for the obligatory annual servicing of the boilerFailure to service the appliance voids the warranty

Danger of electric shockBefore service work is started the boiler has to be de-energised and secured from accidentally being switched back on

CautionHave an inspection carried out and the flues swept at least once a year or more depending on the regulations in force in your country

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

CautionAfter maintenance or repair work check the entire heating system to ensure that there are no leaks

CautionOnly genuine spare parts may be used

72 Specific maintenance operations

721 Cleaning the siphon

1 Remove the flue gas outlet discharge pipe

2 Remove the condensate discharge pipe 3 Remove the screw from the siphon

Fig29

1

MW-2000903-01

Fig30

2

3

MW-2000904-01

7 Maintenance

38 Gas 120 ACE 7717202 - v03 - 24062019

4 Pull the siphon downwards to disengage it and pivot it to release it

5 Flush the siphon 6 Drain the siphon

7 Fill the siphon with clean water up to the mark 8 Lubricate the siphon gasket9 Re-engage the siphon and refit the screw

10 Refit the two pipes

722 Checking the ionisation current

1 Check the ionisation current at full load and at low loadThe value is stable after 1 minute

2 Clean or replace the ionisationignition electrode if the value is lower than 4 microA

Fig31

4

90deg

MW-2000905-01

Fig32

MW-2000843-01

Fig33

MW-2000844-01

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 39

723 Replace the ionizationignition electrode

The ionizationignition electrode must be replaced if

The ionization current is lt 4 microAThe electrode is damaged or worn

1 Remove the plug of the electrode from the igniter

ImportantThe ignition cable is fixed to the electrode and therefore may not be removed

2 Remove the two screws3 Remove the entire component4 Fit the new ionizationignition electrode with a new seal5 Reassemble the unit in the reverse order to disassembly

724 Servicing the forced flue connection pipes

1 Open the inspection hatches or remove the pipes2 Check that the air supply and discharge pipes are not blocked

If necessary clean the discharge pipe3 Check the tightness of the flue gas system4 Replace the tightness gaskets and if necessary any sections of pipe

until tightness is perfect

725 Checking the burner and cleaning the heat exchanger

1 Remove the air inlet flue on the venturi2 Loosen the gland on the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

Fig34

AD-0000088-01

4

1

2

3

Fig35 Removing the fan

AD-3001178-01

1

3

4

2

5

7 Maintenance

40 Gas 120 ACE 7717202 - v03 - 24062019

6 Remove the front plate from the heat exchanger7 Carefully lift the front plate including the burner and fan away from

the heat exchanger

8 Use a vacuum cleaner fitted with a special endpiece (accessory) to clean the top part of the heat exchanger (combustion chamber)

9 Vacuum again without the top brush on the end piece10 Clean the lower section of the heat exchanger with the special

cleaning blade (accessory)11 Check (eg using a mirror) whether any visible contamination has

been left behind If it has remove it with the vacuum cleaner12 Check that the burner cover of the dismantled burner is free from

cracks andor damage If not replace the burnerServicing the burner is usually not necessary it is self-cleaning Use compressed air to carefully blow away any dust

13 Reassemble the unit in reverse order

CautionRemember to reconnect the fan plugCheck that the gasket is correctly positioned between the mixing elbow and the heat exchanger (the gasket must lie absolutely flat in the appropriate groove to ensure that no gas can leak)Tighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the front plate nuts with a torque wrench to the firmness of 10 Nm

14 Open the gas supply and switch the power supply to the boiler back on

Fig36 Removing the front plate fan and burner

AD-3001179-01

6

7

Fig37 Cleaning the heat exchanger

AD-3001180-01

10

8 9

12

11

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 41

726 Checking the non-return valve

1 Remove the air inlet pipe from the venturi2 Unscrew the gland of the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

6 Dismantle the fan7 Remove the fan together with the gas valve unit8 Inspect the non-return valve and replace it in the event of a defect or

damage or if the maintenance kit contains a non-return valve9 Reassemble in the reverse order

CautionRemember to reconnect the fan plugTighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the two fan nuts with a torque wrench to the firmness of 38 Nm

Fig38 Disconnecting the fan

AD-3001178-01

1

3

4

2

5

Fig39 Checking the non-return valve

AD-3001181-01

2x

68

7

9

7 Maintenance

42 Gas 120 ACE 7717202 - v03 - 24062019

8 Decommissioning

81 Decommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

To switch off the boiler temporarily or permanently proceed as follows

1 Switch the boiler off2 Cut the electrical power to the boiler3 Close the gas valve on the boiler4 Drain the central heating system or ensure frost protection5 Close the door of the boiler to prevent air circulating inside it6 Remove the pipe connecting the boiler to the chimney and close the

nozzle with a plug

82 Recommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

Should it prove necessary to carry out the recommissioning of the boiler proceed as follows

1 Re-establish electrical power to the boiler2 Fit and check the flue gas pipe3 Fill the siphon with water4 Fill the central heating system5 Open the boiler gas valve6 Start up the boiler

8 Decommissioning

7717202 - v03 - 24062019 Gas 120 ACE 43

9 Disposal and recyclingCautionOnly qualified professionals are permitted to remove and dispose of the boiler in accordance with local and national regulations

If you need to remove the boiler proceed as follows

1 Switch off the boiler2 Cut the power supply to the boiler3 Close the main gas valve4 Close the water mains5 Close the gas valve on the boiler6 Drain the installation7 Remove the airflue gas pipes8 Disconnect all pipes9 Dismantle the boiler

Fig40

MW-3000179-03

9 Disposal and recycling

44 Gas 120 ACE 7717202 - v03 - 24062019

10 Environmental

101 Energy savings

Energy-saving advice

Do not block ventilation outletsDo not cover the radiators Do not hang curtains in front of the radiatorsInstall reflective panels behind the radiators to prevent heat lossesInsulate the pipes in rooms that are not heated (cellars and lofts)Close the radiators in rooms not in useDo not run hot (or cold) water pointlesslyInstall an energy-saving shower head which can save up to 40 energyTake showers rather than baths A bath consumes twice as much water and energy

102 Room thermostat and settings

Various models of room thermostat are available The type of thermostat used and the parameter selected impact total energy consumption

A modulating regulator which may be combined with thermostatic valves is eco-friendly in terms of energy and offers an excellent level of comfort This combination allows you to set the temperature separately for each room However do not install thermostatic radiator valves in the room in which the room thermostat is locatedComplete opening and closing of the thermostatic radiator valves causes undesirable variations in temperature Therefore these must be openedclosed progressivelySet the room thermostat to a temperature of approximately 20degC to reduce heating costs and energy consumptionLower the thermostat setting to approximately 16degC at night or when you are not at home This reduces heating costs and energy consumptionLower the thermostat setting well before airing the roomsSet the water temperature to a lower level in summer than in winter (eg 60degC and 80degC respectively) when an ONOFF thermostatis usedWhen clock thermostats and programmable thermostats are to be set do not forget to take any holidays and days when no one is at home into account

10 Environmental

7717202 - v03 - 24062019 Gas 120 ACE 45

11 Warranty

111 General

We would like to thank you for buying one of our appliances and for your trust in our productIn order to ensure continued safe and efficient operation we recommend that the product is regularly inspected and maintainedYour installer and our service department can assist with this

112 Terms of warranty

The following provisions do not affect the application in favour of the buyer of the legal provisions with regard to hidden defects that are applicable in the buyers countryThis appliance comes with a warranty that covers all manufacturing faults the warranty period will commence on the date of purchase stated on the installers invoiceThe warranty period is stated in our price listAs a manufacturer we can by no means be held liable if the appliance is used incorrectly is poorly maintained or not maintained at all or is not installed correctly (it is your responsibility to ensure that installation is carried out by a qualified installer)In particular we cannot be held liable for material damage intangible losses or physical injury resulting from an installation that does not comply with

Legal or regulatory requirements or provisions laid down by the local authoritiesNational or local regulations and special provisions relating to the installationOur manuals and installation instructions in particular in terms of regular maintenance of the appliances

Our warranty is limited to the replacement or repair of the parts found to be defective by our technical services team excluding labour transfer and transport costsOur warranty does not cover replacement or repair costs for parts that may become defective due to normal wear incorrect usage the intervention of unqualified third parties inadequate or insufficient supervision or maintenance a mains supply that is not appropriate or the use of unsuitable or poor quality fuelSmaller parts such as motors pumps electrical valves etc are guaranteed only if these parts have never been dismantledThe rights established in European Directive 9944EEC implemented by legal decree No 24 of 2 February 2002 and published in Official Journal No 57 of 8 March 2002 remain in force

11 Warranty

46 Gas 120 ACE 7717202 - v03 - 24062019

12 Spare parts

121 General

If inspection or maintenance work bring to light the need to replace a component in the boilerProvide the reference number given in the spare parts list when ordering a spare part

CautionOnly genuine spare parts may be used

122 Spare parts lists

1221 Exchanger

Fig41

MW-6000743-01

811x

7

7

4

2

16

3

10

119

65

1

13

12

18

14

19

15

18

17

Tab27

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

1 7699615 Complete exchanger x 1 7699614 Complete exchanger x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 47

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

2 S101564 Exchanger front plate x x x3 S54731 Exchanger inspection hatch insulation x x x4 S57241 Exchanger inspection hatch gasket x x x5 S100052 M4x10 self-locking screw (x20) x x x6 S54754 FURQ65 burner x 6 S57477 FURQ85 burner x x7 7623837 Set of 10 k NTC sensors x x x8 S54755 M6 nut (x20) x x x9 7659755 M4x10 screw (x10) x x x10 S53489 Electrode gasket (x10) x x x11 7692359 Ignition electrode x x x12 7631936 Flue gas flow pipe diameter 100 mm x x x13 7624643 NTC 2x20 k flue gas sensor with gasket x x x14 7624619 Ignition transformer x x x15 S56987 ZP M6x16 screw (x10) x x x16 7616253 Valve with support x x x17 7680596 Exchanger bracket x 17 7673616 Exchanger bracket x x18 7701752 Gasket diameter 100 mm (x5) x x x19 7632708 Earth electric clip (x2) x x x

1222 Gas circuit

Fig42

MW-6000744-01

3

2

5

6

9

4

8

10

7

12

11

1

14

13

13

12 Spare parts

48 Gas 120 ACE 7717202 - v03 - 24062019

Tab28Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 S101543 Silencer x 1 S101520 Silencer x 1 S101578 Silencer x2 S54777 Venturi gasket (x5) x 2 S59215 Gas valve-venturi gasket (x5) x 2 S101593 Gaskets (kit) x3 S101726 Fan RG 1481200-3633 x x 3 S100036 Fan RG 148 1200-3633-010202 x4 S101596 Gas valve VK4115v1386 x 4 S101597 Gas valve VK4115vb1012 x 4 S101510 Gas valve GB-ND 057 XP x5 S54766 Venturi x 5 S57488 Venturi x 5 S101595 Venturi VMS 45900450-010 x6 S59215 Gas valve-venturi gasket (x5) x x 7 S57827 Gas valve unit flange x8 S57828 268x22x25 O-ring (x5) x9 S101631 Diaphragm x10 7616249 Flue gas sensor cap (5x) x x x11 S56155 238x177x2 gasket (x20) x x x12 95760050 C HC M4-12 88 ZN3 screw x x x13 S48512 M5-10 screw (x10) x x x14 S101590 Silencer retaining clip x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 49

1223 Hydraulic circuit

Fig43

MW-6000745-01

1

14

6

9

11

8

12

5

37

9

10

2

4

13

Tab29Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7680598 Complete flow pipe x 1 7670807 Complete flow pipe x x2 7672557 Complete return pipe x x x3 7674076 Complete gas pipe x 3 7680434 Complete gas pipe x 3 7670720 Complete gas pipe x4 7698560 HUBA G38 pressure gauge x x x5 94994712 PVC pipe diameter 16x12 x x x6 7699357 Water deflector diameter 100 mm x x x7 94902073 Drain valve 12 x x x8 94918138 Air vent x x x9 95013064 44x32x2 mm green gasket x x x10 95013060 24x17x2 mm green gasket x x 10 95013062 30x21x12 mm green gasket x11 7692329 Condensate hose x x x13 7706103 Assembled siphon height 160 mm x 13 7706038 Assembled siphon height 250 mm x x14 7103731 Condensate drain pan gasket x x x

12 Spare parts

50 Gas 120 ACE 7717202 - v03 - 24062019

1224 Boiler body

Fig44

MW-6000746-01

2

2

1

6

3

34

5

4

Tab30Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7686377 Assembled frame x 1 7686139 Assembled frame x x2 7679958 117x34 handle diameter 65 mm x x x3 7676037 Wheel x x x4 7688301 Frame lateral gasket x 4 7688008 Frame lateral gasket x x5 7688353 Front panel gasket x 5 7688007 Front panel gasket x x6 7693874 R4-05 front panel lock x x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 51

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

E toimistoestsystemsfi

Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 16: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

Boiler sensor return sensor

Tab12 Boiler sensor return sensorTemperature in degC

-20 -10 0 10 20 25 30 40 50 60 70 80 90 100 110

Resistance in Ω

98932 58879 36129 22804 14773 10000 9804 6652 4607 3252 2337 1707 1266 952 726

Circuit flow sensor domestic hot water sensor and system sensor

Tab13 Circuit flow sensor domestic hot water sensor and system sensorTemperature in degC 0 10 20 25 30 40 50 60 70 80 90Resistance in Ω 32014 19691 12474 10000 8080 5372 3661 2535 1794 1290 941

Specifications of the boiler flue gas sensor

Tab14 Boiler flue gas sensorTemperature degC 0 10 20 30 40 50 60 70 80 90 100Resistance Ohm 66000 40000 20000 16100 10600 7160 4940 3480 2490 1810 1340

33 Dimensions and connections

Fig5

MW-2000684-03

A

D

E

FG

BC

600 605150

92

132

240

141

418

5

2

34

107

105

95

100

1

255145

1 Heating circuit flow (R114)2 Gas inlet (G34)3 Heating circuit return (R114)

4 Condensate discharge (DN22)5 Flue gas pipe

Tab15 Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 1155 Diameter 100150 mm Diameter 100150 mm Diameter 100150 mmA (mm) 1340 1562 1562B (mm) 1164 1386 1386C (mm) 1082 1304 1304D (mm) 971 1193 1193

3 Technical specifications

16 Gas 120 ACE 7717202 - v03 - 24062019

Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 115E (mm) 410 632 632F (mm) 87 303 303G (mm) 128 350 350

34 Electrical diagram

341 Electrical diagram of boiler

Fig6

CU-GH-08

X3X4X5

X6

X8

1

2

3

1

2

3

X14

X7

X10

X11

X13

X12

1

2

3

4

5

25 A

Nrsquo

1

2

3

4

YE

GY

BR

GR

1

2

3

4

1

2

3

4

1

2

N L

1

2

1

2

OPTION

PRESSURE

SWITCH

MW-2000850-04

230V

1 2 3 4 5 6 7 8 9 10

24V

12 11

BL OR

10 9 8 7 6

GR BK RE YE BL

5 4 3 2 1

OR BK RE YE BL

Lrsquo

BL

GY

GY

GY

BL BR

GY

BL

BR

GY BL

BR

GY

BR

GR BK RE YE BL OR BK RE YE BL

BK

BL

BR

RE

GR

GR

BK

GR

GY

YE

BR

BL

OR

1

2

3

4

5

1

2

3

RE

BK

GR

BR

BK

BL

GR

1

2

BR

GR

GY

RE BL

BL

BK

BK

BR YE

GR PI

BL

BL

GR

PI

GR

RE

BR

YE

BK

BK

BR

GY

BL

BL

BR

GY

GY

BR

BL BL GY

BR

BL

BR

BK

GYWH

GY

BL

GY

BL

BR

BK

WH

BL

GY

1 12

4

5

2

3

6

7

8

9

10

11

16

17

15

14

13

1 230 V connector connection with control unit2 Mains interference filter3 Earthing of boiler front door4 Return sensor (TR)5 Flow sensor (FTS)6 Flue gas sensor7 Flue gas pressure switch (specific option for the

Netherlands)8 Gas valve unit (GB)9 Igniter (IT)

10 Ionizationignition electrode (E)11 Fan supply12 24 V connector connection with control unit13 Storage information (CSU)14 Pressure sensor (PS)15 Fan control (PWM)16 Light17 Control unit (CU-GH08)BK BlackBL Blue

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 17

BR BrownGY GreenYellowYE YellowOR OrangeGR Green

PI PinkGY GreyRD RedWH White

3 Technical specifications

18 Gas 120 ACE 7717202 - v03 - 24062019

4 Description of the product

41 General description

Gas 120 ACE floor-standing condensing gas boilers have the following characteristics

Low polluting emissionsHigh-efficiency heatingElectronic control panelFlue gas discharge by a forced flue or chimney type connection with bi-flow option

The boilers are perfectly suited to cascade installation

42 Operating principle

421 Gasair setting

The casing fitted to the boiler is also used as an air box Air is drawn in by the fan and gas injected into the Venturi by the fan intake The fan speed is modulated according to the settings the heat demand and the actual temperatures measured by the temperature sensors The gas and air are mixed in the Venturi The gasair ratio command function accurately adjusts the quantities of gas and air required This provides optimum combustion over the entire output range The gasair mixture is sent to the burner located upstream of the heat exchanger

422 Settings and safety devices

ImportantThe settings and safety devices are only operational if the boiler is powered up

Tab16 Description of the safety devicesDevice DescriptionNTC flue gas sensor The control panel blocks the gas supply to the burner in the event of overheatingFlame detector by ionisation The boiler is put into safety lock-down in the event of gas shortage or incomplete cross-

lighting on the burnerHydraulic pressure switch When the pressure switch detects a pressure lower than 08 bar (008 MPa) a warning

message is displayed without stopping the circulating pumpPost-circulating pump After the burner stops depending on the room thermostat setting and if in heating

mode the circulating pump runs for a further 3 minutesFrost protection device When the flow temperature is lower than 5 degC the burner starts up and runs until the

flow temperature reaches 15 degC This device runs under the following conditions

The boiler is switched onThe gas supply is workingThe pressure in the system is higher than 05 bar (005 MPa)

Anti-blocking of the pump If there are no heating or domestic hot water requirements for 24 consecutive hours the pumps start up automatically and run for 10 seconds

Anticipatory start-up of the circulatshying pumps

In heating mode only the appliance can start up the circulating pumps before burner igshynition The duration and activation of anticipatory start-up depends on the installation reshyquirements and the operating temperatures The duration of anticipatory start-up of the circulating pumps therefore varies from a few seconds to several minutes

4 Description of the product

7717202 - v03 - 24062019 Gas 120 ACE 19

43 Main boiler components

1 Control unit2 Flow sensor3 Light4 Ignitionionization electrode5 Non-return valve6 Gas valve7 Heat exchanger (heating circuit)8 Return sensor9 Pressure gauge sensor

10 CU-GH-08 PCB housing11 Siphon12 Flue gas circuit13 Intake silencer14 Venturi15 Flue gas sensor16 Fan17 Automatic air vent18 Flue gas measuring point19 Combustion air measuring point20 Flue gas outletair supply

44 PCBs

441 Description of the CU-GH-08 PCB

This PCB controls the core boiler components sensors actuators and gas valveThis PCB is factory-fitted and fully cabled and does not require any operationThe sensors valves circulating pumps etc are connected at the control unit

45 Standard delivery

The Gas 120 ACE boiler comes in 2 packages including

Tab17 Package contentsPackage ContentPackage 1 A floor-standing gas boiler

A flue system outlet with a measuring point (stored in the boiler)An outdoor temperature sensorA data plateAn installation and service manual

Package 2 A control unitTwo control unit mounting bolts on the boilerA user manual

46 Accessories amp options

A detailed list of accessories and options can be found in our catalogue

Fig7

MW-2000670-02

16

7 13

12

11

10

19

18

20

17

14

15

6

5

2

9

4

3

1

8

4 Description of the product

20 Gas 120 ACE 7717202 - v03 - 24062019

5 Installation

51 Installation regulations

CautionInstallation of the boiler must be done by a qualified professional in accordance with prevailing local and national regulations

CautionA disconnection device must be fitted to the permanent pipes in accordance with the installation rules

CautionRespect the maximum water inlet pressure to ensure correct operation of the appliance referring to the Technical Specifications chapter

52 Choice of the location

Decide on the ideal position for installation bearing in mind any legal directives and the space required by the appliance

Install the boiler on a solid stable structure capable of bearing the weight of the appliance when full of water and fully equippedWhen choosing the position for installation of the boiler bear in mind the positions authorised for the combustion gas discharge outlets and the air intake ventDo not install the boiler near any heat sources

521 Data plate

The data plate is located on the back of the boilerThe data plate provides important information regarding the appliance

Serial numberModelGas categoryCN1CN2etc

Once installation is complete the second data plate supplied in the documentation bag can be affixed to a more visible part of the boilerIf the boiler is equipped with a hydraulic kit (low-loss header or plate heat exchanger) affix the data plate to the side of the boiler

522 Space required - Boiler ventilation

Decide on the ideal position for installation bearing in mind any legal directives and the space required by the appliance

Install the boiler on a solid stable structure capable of bearing the weight of the appliance when full of water and fully equippedWhen choosing the position for installation of the boiler bear in mind the positions authorised for the combustion gas discharge outlets and the air intake ventDo not install the boiler near any heat sources

Fig8

MW-6000735-01

Made in France0085

CN1 17

CN2 7

230 V 50 Hz

B23(P) - B33 - C13(X) - C33(X) - C43(X) - C53 - C63(X) - C83(X) - C93(X)

PMS= 4bar - 04MPa

Pn =

8060 degC

5030 degC

NOx class 6 (Nox lt 56 mgkWh)

Qn =Hi kW

4030 degC

189-1039

196-1070

212-1097

180W

0085CT009

Hs (G20) 217-1189

IP21Imax= 10A

Tmax= 90degC

FR

LT

IT

AT

CZ

PL

II2Esi3BP

II2H3BP

II2H3BP

II2H3BP

II2H3P

II2H3BP

II2H3BP

II2ELw3BP

G20-20mbar G25-25mbar G30G31-303750mbar

G20-20mbar G30G31 - 30mbar

G20-20mbar G30G31 - 303750 mbar

G20-20mbar G30G31 - 3037mbar

G20-20mbar G31 - 30mbar

G20-20mbar G30G31 - 50mbar

G20-20mbar G30G31-303750mbar

G20-20mbar G27-20mbar G3031-37mbar

kW

Art Nr SN A0000YYWW000

kW

kW

kW

kW

kW

ESGR PT

LU RO EE

YY-WW

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 21

Keep the boiler accessible at all timesPlace the boiler on a base to make it easier to clean the roomThe boiler can be located along a partition on one of its sides provided there is a 500 mm space on the opposite sideAllow enough space around the boiler to facilitate accessibility and maintenance The minimum recommended dimensions are shown in the illustrationMake sure there is a connection to the water drainage system close to the boiler to discharge any condensates

ImportantTo fit the boiler position the pallet with the package 25 m in front of the desired location for the installation This distance is required to allow the boiler to be removed from its pallet

Tab18Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 115

A (mm) 500 500 500B (mm) 1082 1304 1304

To allow the intake of combustion air sufficient ventilation must be provided in the boiler room the cross section and position of which must satisfy the regulations in force

Great Britain BS 5440 Part 1 and Part 2

For boilers with a nominal output of more than 70 kW Upper and lower air vents comshypulsory

BS 6644 and IGEMUP-10

Caution

Avoid any low points in the flue gas and condensate discharge circuit in order to prevent any accumulation of condensatesDo not block the air inlets in the room or the combustion product evacuation or condensation water flow pipes (even partially)

If the boiler is installed in closed premises respect the minimum dimensions given in the diagram below Also allow for openings to obviate the following hazards

Accumulation of gasOverheating of the premisesGreat Britain Minimum cross section of openings see BS 5440 Part 1 and Part 2 and BS 6644

523 Ventilation

To allow the intake of combustion air sufficient ventilation must be provided in the boiler room for which the cross section and position must satisfy the regulations in force in the country in which the boiler is installed

Great Britain BS 5440 Part 1 and Part 2

For boilers with a nominal output of more than 70 kW Upper and lower air vents comshypulsory

BS 6644 and IGEMUP-10

Fig9

MW-2000679-03

500

B

1100

AS1

S2

260

580

350

600

500

5 Installation

22 Gas 120 ACE 7717202 - v03 - 24062019

If the boiler is installed in closed premises respect the minimum dimensions given in the diagram below Also allow for openings to obviate the following hazards

Accumulation of gasOverheating of the premisesGreat Britain Minimum cross section of openings see BS 5440 Part 1 and Part 2 and BS 6644

524 Fitting the outdoor sensor

Plugs diameter 4 mmdrill diameter 6 mm

1 Choose a recommended location for the outdoor sensor2 Put the 2 plugs in place delivered with the sensor3 Secure the sensor using the screws provided (diameter 4 mm)4 Connect the cable to the outdoor temperature sensor

Recommended positions

Place the outside sensor in a position that covers the following characteristics

On a faccedilade of the area to be heated on the north if possibleHalf way up the wall of the area to be heatedUnder the influence of changes in the weatherProtected from direct sunlightEasy to access

Fig11

MW-8800N001-3

2

1

2

11

2

H

12 H (min 25 m)

12 H (min 25 m)

12 Z

H

Z

1 Optimum location2 Possible position

H Inhabited height controlled by the sensorZ Inhabited area controlled by the sensor

Positions to be avoided

Avoid placing the outside sensor in a position with the following characteristics

Masked by part of the building (balcony roof etc)Close to a disruptive heat source (sun chimney ventilation grid etc)

Fig10

MW-8800N003-6

23

4

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 23

Fig12

MW-3000014-2

53 Transport

Transport the boiler pallet with a manual or electric pallet truck

54 Unpacking and preparing the boiler

Caution

Wear gloves to handle the boilerTransport the boiler pallet with a manual or electric pallet truckUse carrying bars (not provided) to move the boiler

ImportantTo fit the boiler position the pallet with the package 25 m in front of the desired location for the installation This distance is required to allow the boiler to be removed from its pallet

1 Cut the packaging2 Remove the packaging from the boiler but leave the boiler on the

shipping pallet

ImportantThe documentation bag (user manual + accessories) is contained in the protective block

Fig13

MW-6000736-01

Manual

11

12

5 Installation

24 Gas 120 ACE 7717202 - v03 - 24062019

3 Using a long tool unlock and remove the boilers front door Disconnect the earth wire

4 Remove the mounting bolts from the unloading ramps and the boiler (4 bolts at the rear and 4 bolts at the front)

5 Pull out the unloading ramps and turn them over6 Align the ramps with the rear castor wheels on the boiler

Fig14

MW-6000761-01

3

3

Fig15

MW-6000737-01

4

4

Fig16

MW-6000738-01

5

5

6

6

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 25

7 Lock the ramps correctly onto the pallet8 Screw the unloading ramps onto the pallet9 Fold down the ends of the ramp so that they rest on the ground

10 Tilt the boiler backwards until it is resting on the castor wheels then remove it from the pallet

11 Recycle the pallet

Fig17

MW-6000770-01

9

9

8

7

Fig18

MW-6000739-02

600

350

11

10

550

5 Installation

26 Gas 120 ACE 7717202 - v03 - 24062019

12 Level the boiler using the adjustable feet(1) Factory setting 30 mm adjustment range 20 to 40 mm

CautionThe rear castor wheels must no longer be in contact with the ground

55 Hydraulic connections

551 Water treatment

In many cases the boiler and the heating system can be filled with mains water without treating the water

CautionDo not add any chemical products to the heating water without first consulting a water treatment specialist For example antifreeze water softeners products to increase or reduce the pH value chemical additives andor inhibitors These may cause faults in the boiler and damage the heat exchanger

Important

Flush the installation with at least 3 times the volume of water contained in the heating systemFlush the DHW circuit with at least 20 times its volume of water

The water in the installation must comply with following specifications

Tab19 Installation water specifications Initial commissioning Concentration (top up)Degree of acidity (untreated water) pH 65 - 85 65 - 85

Degree of acidity (treated washyter) pH 70 - 90 70 - 90

Conductivity at 25degC μScm le 500 le 500Chlorides mglitre le 50 le 50Other components mglitre lt 1 lt 1

Total water hardnessdegf 5 - 35 le 15degdH 28 - 200 le 85mmollitre(1) 05 - 35 lt 15

(1) Flow temperature less than 90degC mdash Maximum hardness 150 mmoll

Fig19

MW-6000773-01

(1)

12

12

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 27

ImportantIf water treatment proves necessary Remeha recommends the following manufacturers

CillitClimalifeFernoxPermoSentinel

552 Flushing new installations and installations less than 6 months old

Before filling the heating installation it is essential to remove any debris (copper caulking soldering flux) from the installation

1 Clean the installation with a powerful universal cleaner2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

553 Flushing an existing installation

Before filling the heating installation it is essential to remove any sludge deposits which have accumulated in the heating circuit over the years

1 Remove any sludge from the installation2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

554 Connecting the heating circuit

ImportantAbide by the information shown in the hydraulic diagrams

The pipes are not provided

Caution

The heating pipe must be mounted in accordance with the provisions applicableIf installing stop valves position the filldrain valve and the expansion vessel between the stop valves and the boilerAlways install a safety valve calibrated to a maximum of 4 bar on the heating circuit The safety valve can be connected to a venting pot The safety valve must not be used to drain the heating circuitIt is recommended to install a sludge collector on all installations

SeeIf fitting with a hydraulic kit (low-loss header or plate heat exchanger) refer to the kit manual

555 Connecting the condensate discharge pipe

Use a neutralisation station to achieve a pH value of more than 65 (in accordance with prevailing regulations)Discharge the condensates directly into the mains drainage system via a siphon In view of the acidity level (pH 25 to 3) only condensate discharge pipes made from compatible plastic should be used

5 Installation

28 Gas 120 ACE 7717202 - v03 - 24062019

The condensate discharge pipe is located at the rear of the boiler

Do not block the condensate discharge pipeTilt the discharge pipe by at least 30 mm per metre and make sure there are no low points that could cause the accumulation of water or deposits Maximum horizontal length 5 metresDo not drain condensation water into a roof gutterConnect the condensate discharge pipe in accordance with prevailing standardsIt is preferable to use the condensate neutralisers recommended by the manufacturer of the boiler

1 Connect a plastic hose to the condensate discharge outlet (DN 22)2 Insert the other end of the hose into a waste water discharge outlet

556 Filling the siphon

DangerIf operating with the siphon empty combustion products will escape into the premises in which the boiler is installed

1 Pour water into the flue gas pipe (central pipe) until it flows out of the condensate discharge pipe

56 Gas connection

Danger

Close the main gas valve before starting work on the gas pipesThe diameters of the pipes must be defined in accordance with the standards in force in your countryConnect the gas pipe in accordance with prevailing standards and regulationsEnsure that there is no dust in the gas pipe

The gas pipes are not providedIn old gas networks we recommend fitting a gas filter with a low pressure drop upstream of this point

1 Clean the gas supply pipe2 Remove the anti-dust plug located on the boilers gas inlet3 Mount a gas stop valve (not provided) on the boilers gas inlet4 Connect the gas inlet pipe to the gas stop valve

Fig20

MW-2000825-01

pH gt 65

Oslash32A

Fig21

MW-6000742-02

1

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 29

5 Close the gas supply valve before testing the pressure on the gas supply pipe to avoid damage caused by excessive pressure on the gas regulator Decompress before reopening the valve

561 Gas supply

Before mounting check that the gas meter has sufficient capacity (in m3h) To do this you should bear in mind the consumption of all appliances If the capacity of the gas meter is too low inform the gas supply companyThe boilers are preset to run on G20 gas (gas H) and can be adapted to run with the following gases

G31 (gas P)G3031 (gas BP)

ImportantTo use a different type of gas contact an approved assistance service

57 Air supplyflue gas outlet connections

571 Classification

The discharge and intake pipes must be certified for the appropriate configuration and must meet the requirements of the prevailing installation standards in the country

Tab20 Configurations and recommendations for the flue systemConfiguration Principle DescriptionB23B23P

AD-3001055-01

Connection to a chimney using a CE connection kit (single pipe in a flue comshybustion air taken from the boiler room)Follow the connection instructions and adhere to the recommended maximum pipe lengthsComply with the applicable regulations governing ventilation and cross-secshytions for room aeration vents

B33

MW-5000925-1

Room-ventilated version

Without down-draught diverterJoint flue gas discharge via the roof with guaranteed natural draft (at all times underpressure in the joint discharge duct)Flue gas discharge rinsed with air air from the installation area (special conshystruction)The IP rating of the boiler is lowered to IP20

C13C13X

AD-3001056-01

Airflue gas connection using concentric pipes to a horizontal terminal (so-called forced flue) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

5 Installation

30 Gas 120 ACE 7717202 - v03 - 24062019

Configuration Principle DescriptionC33C33X

AD-3001057-01

Airflue gas connection using concentric pipes to a vertical terminal (roof outshylet) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

C43C43X

MW-2000822-01

Airflue gas connection via concentric pipes to a common pipe supplying severshyal heating applicationsThe common pipe has a roof connection to a vertical terminal that draws in the air required for combustion and discharges the combustion productsUse of CE-certified system

C53

AD-3001058-02

Airflue gas connection via separate pipes lead to two separate terminals One draws in the air required for combustion and the other discharges the combusshytion productsThe outlets may be in different pressure zonesDo not install the air supply and discharge on opposing surfacesUse of CE-certified system

C63C63X

The installer is responsible for installing a CE-certified discharge system that complies with the manufacturers recommendations (temperature flow pressure etc)

The maximum pressure drop in the pipes ΔP must not exceed the values given in the table below The pipes must be certified for this type of use and for a temperature of more than 100 degC The terminal part of the flue gas pipe must be certified as complying with the EN 1856-1 StandardIf installing discharge and intake pipes not supplied by Remeha these must be certified for the intended type of use and their maximum pressure drop must be compliant

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 31

Configuration Principle DescriptionC83C83X

MW-2000823-01

Flue gas connection to a collective flue for sealed boilers The air supply is inshydividual via a terminal coming from outside the buildingA concentric pipe can be used to both supply the boiler with combustion air and connect to the collective flue gas discharge systemThe chimney or flue gas pipe must be suitable for such use and the system CE certified

C93C93X

AD-3001059-01

Airflue gas connection via concentric pipes in an existing chimney The air supshyply in the chimney may be installed via the existing channel or via tubing Flue gas discharge and air intake are via a vertical terminal at the top of the chimney

The air intake and discharge must be close enough to be in the same pressure zoneThe minimum cross-sections are shown in the table belowThe flue system must be suitable for the intended use and the system CE certishyfied

Tab21 Minimum dimensions of the duct or pipe C93 C93X

Version (D) Without air supply With air supplyRigid 80 mm Oslash 130 mm 130 x 130 mm Oslash 140 mm 130 x 130 mmRigid 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmRigid 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmFlexible 80 mm Oslash 130 mm 130 x 130 mm Oslash 145 mm 130 x 130 mmFlexible 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmFlexible 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmConcentric 80125 mm Oslash 145 mm 145 x 145 mm Oslash 145 mm 145 x 145 mmConcentric 100150 mm Oslash 170 mm 170 x 170 mm Oslash 170 mm 170 x 170 mmConcentric 150200 mm Oslash 270 mm 270 x 270 mm - -

ImportantThe duct must comply with the air density requirements of the local regulations

Important

Only original components are authorised for connection to the boiler and for the terminalThe clear section must comply with the standardThe chimney must be swept before installing the discharge flue

CautionEnsure that the flue gas discharge pipes are securely attached to the wall with suitable retaining flanges to prevent any damage and guarantee the tightness of every gasket in the circuit

CautionThe minimum gradient of the condensates discharge pipe from the boiler to the waste water discharge must be 1 cm per linear metre

Fig22 Minimum dimensions of the duct or pipe C93 C93X

AD-3000330-03

D

Oslash

D

5 Installation

32 Gas 120 ACE 7717202 - v03 - 24062019

572 Lengths of the airflue gas pipes

The maximum lengths (Lmax) given in the table are valid for pipes in which the horizontal sections do not exceed one metre in total For each additional metre of horizontal pipe a multiplication coefficient of 12 must be applied when calculating the total length L The total length L is calculated by adding the lengths of the straight airflue gas pipes and the equivalent lengths of the other componentsAlways ensure that L is less than Lmax

ImportantFor the list of flue gas system accessories and the equivalent lengths refer to the current price list

Tab22 Lengths of the airflue gas pipes in metresConfigurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 100 mm 26 24 19

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 110 mm 40 40 40

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 110 mm 295 24 175

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 80125 mm - - -

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 100150 mm 9 8 59

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 80125 mm - - -

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 100150 mm 115 10 94

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 80125 mm over 2x80 mm

- - -

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 100150 mm over 2x100 mm

23 175 Air 11Flue gases 5

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm110 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 110150 mm110 mm

16 132 10

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 33

Configurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 110150 mm110 mm

165 135 94

Tab23 PPS pipe reduction for each element used

Diameter 80 mmSingle

80125 mmConcentric

100 mmSingle

100150 mmConcentric

45deg elbow 12 m 10 m 11 m 10 m87deg elbow 19 m 15 m 20 m 37 mStraight inspection tube 03 m 06 m - 10 m87deg inspection elbow 19 m 20 m 48 m -Inspection T 42 m 27 m 56 m 25 mInspection tube for flexible pipe 03 m - 05 m -

573 Dimensions of flue gas outlet pipe

WarningThe pipes connected to the flue gas adapter must satisfy the following dimension requirements

d1 External dimensions of flue gas outlet pipe

Tab24 Dimensions of pipe d1 (min-max)80 mm 793 - 803 mm100 mm 993 - 1003 mm150 mm 149 - 151 mm

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipe

Tab25 Dimensions of pipe d1 (min-max) D1 (min-max)8080 mm 793 - 803 mm 793 - 803 mm100100 mm 993 - 1003 mm 993 - 1003 mm110110 mm 1093 - 1103 mm 1093 - 1103 mm150150 mm 149 - 151 mm 149 - 151 mm

Fig23 Dimensions of open connection

AD-3001094-01

oslashd1

Fig24 Dimensions of parallel connection

AD-3000963-01

oslashd1 oslashD1

5 Installation

34 Gas 120 ACE 7717202 - v03 - 24062019

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipeL1 Length difference between flue gas outlet pipe and air supply pipe

Tab26 Dimensions of pipe d1 (min-max) D1 (min-max) L1

(1) (min-max)80125 mm 793 - 803 mm 124 - 1255 mm 0 - 15 mm100150 mm 993 - 1003 mm 149 - 151 mm 0 - 15 mm

(1) Shorten the inner pipe if the length difference is too great

574 Connection to the flue gas pipe

At delivery the flue gas outletair supply is fixed inside the boiler

1 Using a long tool unlock and remove the boilers front door2 Remove the boiler outlet

3 Two options for connection to the flue gas pipe

Option Description3a Connection to a vertical flue gas pipe Position the flue gas

outletair supply directly at the boiler outlet3b Connection to a horizontal flue gas pipe Insert an outlet elshy

bow ( not supplied) before the flue gas outletair supply

ImportantLubricate the gaskets on the flue system during assembly

Fig25 Dimensions of concentric connection

AD-3000962-01

oslashd1

L1

oslashD1

Fig26

MW-2000867-02

1

2

1

Fig27

3a 3b

MW-2000868-01

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 35

Fastening the coaxial pipes Fasten the intake pipes with two galvanised Oslash 42 mm screws with a maximum length of 16 mm

CautionBefore fixing the screws make sure that at least 45 cm of pipe is inserted in the gasket of the other pipe

WarningGuarantee a minimum pipe slope towards the boiler of at least 5 cm per metre

Fig28 Fastening the coaxial pipes using screws

BO-0000030

16 mm

5 Installation

36 Gas 120 ACE 7717202 - v03 - 24062019

6 Operation

61 Settings

To configure the installation and use the boiler please refer to the control unit manual

6 Operation

7717202 - v03 - 24062019 Gas 120 ACE 37

7 Maintenance

71 General

We recommend having the boiler inspected and serviced at regular intervals

CautionDo not neglect to service the boiler Contact a qualified professional or take out a maintenance contract for the obligatory annual servicing of the boilerFailure to service the appliance voids the warranty

Danger of electric shockBefore service work is started the boiler has to be de-energised and secured from accidentally being switched back on

CautionHave an inspection carried out and the flues swept at least once a year or more depending on the regulations in force in your country

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

CautionAfter maintenance or repair work check the entire heating system to ensure that there are no leaks

CautionOnly genuine spare parts may be used

72 Specific maintenance operations

721 Cleaning the siphon

1 Remove the flue gas outlet discharge pipe

2 Remove the condensate discharge pipe 3 Remove the screw from the siphon

Fig29

1

MW-2000903-01

Fig30

2

3

MW-2000904-01

7 Maintenance

38 Gas 120 ACE 7717202 - v03 - 24062019

4 Pull the siphon downwards to disengage it and pivot it to release it

5 Flush the siphon 6 Drain the siphon

7 Fill the siphon with clean water up to the mark 8 Lubricate the siphon gasket9 Re-engage the siphon and refit the screw

10 Refit the two pipes

722 Checking the ionisation current

1 Check the ionisation current at full load and at low loadThe value is stable after 1 minute

2 Clean or replace the ionisationignition electrode if the value is lower than 4 microA

Fig31

4

90deg

MW-2000905-01

Fig32

MW-2000843-01

Fig33

MW-2000844-01

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 39

723 Replace the ionizationignition electrode

The ionizationignition electrode must be replaced if

The ionization current is lt 4 microAThe electrode is damaged or worn

1 Remove the plug of the electrode from the igniter

ImportantThe ignition cable is fixed to the electrode and therefore may not be removed

2 Remove the two screws3 Remove the entire component4 Fit the new ionizationignition electrode with a new seal5 Reassemble the unit in the reverse order to disassembly

724 Servicing the forced flue connection pipes

1 Open the inspection hatches or remove the pipes2 Check that the air supply and discharge pipes are not blocked

If necessary clean the discharge pipe3 Check the tightness of the flue gas system4 Replace the tightness gaskets and if necessary any sections of pipe

until tightness is perfect

725 Checking the burner and cleaning the heat exchanger

1 Remove the air inlet flue on the venturi2 Loosen the gland on the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

Fig34

AD-0000088-01

4

1

2

3

Fig35 Removing the fan

AD-3001178-01

1

3

4

2

5

7 Maintenance

40 Gas 120 ACE 7717202 - v03 - 24062019

6 Remove the front plate from the heat exchanger7 Carefully lift the front plate including the burner and fan away from

the heat exchanger

8 Use a vacuum cleaner fitted with a special endpiece (accessory) to clean the top part of the heat exchanger (combustion chamber)

9 Vacuum again without the top brush on the end piece10 Clean the lower section of the heat exchanger with the special

cleaning blade (accessory)11 Check (eg using a mirror) whether any visible contamination has

been left behind If it has remove it with the vacuum cleaner12 Check that the burner cover of the dismantled burner is free from

cracks andor damage If not replace the burnerServicing the burner is usually not necessary it is self-cleaning Use compressed air to carefully blow away any dust

13 Reassemble the unit in reverse order

CautionRemember to reconnect the fan plugCheck that the gasket is correctly positioned between the mixing elbow and the heat exchanger (the gasket must lie absolutely flat in the appropriate groove to ensure that no gas can leak)Tighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the front plate nuts with a torque wrench to the firmness of 10 Nm

14 Open the gas supply and switch the power supply to the boiler back on

Fig36 Removing the front plate fan and burner

AD-3001179-01

6

7

Fig37 Cleaning the heat exchanger

AD-3001180-01

10

8 9

12

11

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 41

726 Checking the non-return valve

1 Remove the air inlet pipe from the venturi2 Unscrew the gland of the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

6 Dismantle the fan7 Remove the fan together with the gas valve unit8 Inspect the non-return valve and replace it in the event of a defect or

damage or if the maintenance kit contains a non-return valve9 Reassemble in the reverse order

CautionRemember to reconnect the fan plugTighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the two fan nuts with a torque wrench to the firmness of 38 Nm

Fig38 Disconnecting the fan

AD-3001178-01

1

3

4

2

5

Fig39 Checking the non-return valve

AD-3001181-01

2x

68

7

9

7 Maintenance

42 Gas 120 ACE 7717202 - v03 - 24062019

8 Decommissioning

81 Decommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

To switch off the boiler temporarily or permanently proceed as follows

1 Switch the boiler off2 Cut the electrical power to the boiler3 Close the gas valve on the boiler4 Drain the central heating system or ensure frost protection5 Close the door of the boiler to prevent air circulating inside it6 Remove the pipe connecting the boiler to the chimney and close the

nozzle with a plug

82 Recommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

Should it prove necessary to carry out the recommissioning of the boiler proceed as follows

1 Re-establish electrical power to the boiler2 Fit and check the flue gas pipe3 Fill the siphon with water4 Fill the central heating system5 Open the boiler gas valve6 Start up the boiler

8 Decommissioning

7717202 - v03 - 24062019 Gas 120 ACE 43

9 Disposal and recyclingCautionOnly qualified professionals are permitted to remove and dispose of the boiler in accordance with local and national regulations

If you need to remove the boiler proceed as follows

1 Switch off the boiler2 Cut the power supply to the boiler3 Close the main gas valve4 Close the water mains5 Close the gas valve on the boiler6 Drain the installation7 Remove the airflue gas pipes8 Disconnect all pipes9 Dismantle the boiler

Fig40

MW-3000179-03

9 Disposal and recycling

44 Gas 120 ACE 7717202 - v03 - 24062019

10 Environmental

101 Energy savings

Energy-saving advice

Do not block ventilation outletsDo not cover the radiators Do not hang curtains in front of the radiatorsInstall reflective panels behind the radiators to prevent heat lossesInsulate the pipes in rooms that are not heated (cellars and lofts)Close the radiators in rooms not in useDo not run hot (or cold) water pointlesslyInstall an energy-saving shower head which can save up to 40 energyTake showers rather than baths A bath consumes twice as much water and energy

102 Room thermostat and settings

Various models of room thermostat are available The type of thermostat used and the parameter selected impact total energy consumption

A modulating regulator which may be combined with thermostatic valves is eco-friendly in terms of energy and offers an excellent level of comfort This combination allows you to set the temperature separately for each room However do not install thermostatic radiator valves in the room in which the room thermostat is locatedComplete opening and closing of the thermostatic radiator valves causes undesirable variations in temperature Therefore these must be openedclosed progressivelySet the room thermostat to a temperature of approximately 20degC to reduce heating costs and energy consumptionLower the thermostat setting to approximately 16degC at night or when you are not at home This reduces heating costs and energy consumptionLower the thermostat setting well before airing the roomsSet the water temperature to a lower level in summer than in winter (eg 60degC and 80degC respectively) when an ONOFF thermostatis usedWhen clock thermostats and programmable thermostats are to be set do not forget to take any holidays and days when no one is at home into account

10 Environmental

7717202 - v03 - 24062019 Gas 120 ACE 45

11 Warranty

111 General

We would like to thank you for buying one of our appliances and for your trust in our productIn order to ensure continued safe and efficient operation we recommend that the product is regularly inspected and maintainedYour installer and our service department can assist with this

112 Terms of warranty

The following provisions do not affect the application in favour of the buyer of the legal provisions with regard to hidden defects that are applicable in the buyers countryThis appliance comes with a warranty that covers all manufacturing faults the warranty period will commence on the date of purchase stated on the installers invoiceThe warranty period is stated in our price listAs a manufacturer we can by no means be held liable if the appliance is used incorrectly is poorly maintained or not maintained at all or is not installed correctly (it is your responsibility to ensure that installation is carried out by a qualified installer)In particular we cannot be held liable for material damage intangible losses or physical injury resulting from an installation that does not comply with

Legal or regulatory requirements or provisions laid down by the local authoritiesNational or local regulations and special provisions relating to the installationOur manuals and installation instructions in particular in terms of regular maintenance of the appliances

Our warranty is limited to the replacement or repair of the parts found to be defective by our technical services team excluding labour transfer and transport costsOur warranty does not cover replacement or repair costs for parts that may become defective due to normal wear incorrect usage the intervention of unqualified third parties inadequate or insufficient supervision or maintenance a mains supply that is not appropriate or the use of unsuitable or poor quality fuelSmaller parts such as motors pumps electrical valves etc are guaranteed only if these parts have never been dismantledThe rights established in European Directive 9944EEC implemented by legal decree No 24 of 2 February 2002 and published in Official Journal No 57 of 8 March 2002 remain in force

11 Warranty

46 Gas 120 ACE 7717202 - v03 - 24062019

12 Spare parts

121 General

If inspection or maintenance work bring to light the need to replace a component in the boilerProvide the reference number given in the spare parts list when ordering a spare part

CautionOnly genuine spare parts may be used

122 Spare parts lists

1221 Exchanger

Fig41

MW-6000743-01

811x

7

7

4

2

16

3

10

119

65

1

13

12

18

14

19

15

18

17

Tab27

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

1 7699615 Complete exchanger x 1 7699614 Complete exchanger x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 47

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

2 S101564 Exchanger front plate x x x3 S54731 Exchanger inspection hatch insulation x x x4 S57241 Exchanger inspection hatch gasket x x x5 S100052 M4x10 self-locking screw (x20) x x x6 S54754 FURQ65 burner x 6 S57477 FURQ85 burner x x7 7623837 Set of 10 k NTC sensors x x x8 S54755 M6 nut (x20) x x x9 7659755 M4x10 screw (x10) x x x10 S53489 Electrode gasket (x10) x x x11 7692359 Ignition electrode x x x12 7631936 Flue gas flow pipe diameter 100 mm x x x13 7624643 NTC 2x20 k flue gas sensor with gasket x x x14 7624619 Ignition transformer x x x15 S56987 ZP M6x16 screw (x10) x x x16 7616253 Valve with support x x x17 7680596 Exchanger bracket x 17 7673616 Exchanger bracket x x18 7701752 Gasket diameter 100 mm (x5) x x x19 7632708 Earth electric clip (x2) x x x

1222 Gas circuit

Fig42

MW-6000744-01

3

2

5

6

9

4

8

10

7

12

11

1

14

13

13

12 Spare parts

48 Gas 120 ACE 7717202 - v03 - 24062019

Tab28Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 S101543 Silencer x 1 S101520 Silencer x 1 S101578 Silencer x2 S54777 Venturi gasket (x5) x 2 S59215 Gas valve-venturi gasket (x5) x 2 S101593 Gaskets (kit) x3 S101726 Fan RG 1481200-3633 x x 3 S100036 Fan RG 148 1200-3633-010202 x4 S101596 Gas valve VK4115v1386 x 4 S101597 Gas valve VK4115vb1012 x 4 S101510 Gas valve GB-ND 057 XP x5 S54766 Venturi x 5 S57488 Venturi x 5 S101595 Venturi VMS 45900450-010 x6 S59215 Gas valve-venturi gasket (x5) x x 7 S57827 Gas valve unit flange x8 S57828 268x22x25 O-ring (x5) x9 S101631 Diaphragm x10 7616249 Flue gas sensor cap (5x) x x x11 S56155 238x177x2 gasket (x20) x x x12 95760050 C HC M4-12 88 ZN3 screw x x x13 S48512 M5-10 screw (x10) x x x14 S101590 Silencer retaining clip x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 49

1223 Hydraulic circuit

Fig43

MW-6000745-01

1

14

6

9

11

8

12

5

37

9

10

2

4

13

Tab29Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7680598 Complete flow pipe x 1 7670807 Complete flow pipe x x2 7672557 Complete return pipe x x x3 7674076 Complete gas pipe x 3 7680434 Complete gas pipe x 3 7670720 Complete gas pipe x4 7698560 HUBA G38 pressure gauge x x x5 94994712 PVC pipe diameter 16x12 x x x6 7699357 Water deflector diameter 100 mm x x x7 94902073 Drain valve 12 x x x8 94918138 Air vent x x x9 95013064 44x32x2 mm green gasket x x x10 95013060 24x17x2 mm green gasket x x 10 95013062 30x21x12 mm green gasket x11 7692329 Condensate hose x x x13 7706103 Assembled siphon height 160 mm x 13 7706038 Assembled siphon height 250 mm x x14 7103731 Condensate drain pan gasket x x x

12 Spare parts

50 Gas 120 ACE 7717202 - v03 - 24062019

1224 Boiler body

Fig44

MW-6000746-01

2

2

1

6

3

34

5

4

Tab30Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7686377 Assembled frame x 1 7686139 Assembled frame x x2 7679958 117x34 handle diameter 65 mm x x x3 7676037 Wheel x x x4 7688301 Frame lateral gasket x 4 7688008 Frame lateral gasket x x5 7688353 Front panel gasket x 5 7688007 Front panel gasket x x6 7693874 R4-05 front panel lock x x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 51

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

E toimistoestsystemsfi

Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 17: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 115E (mm) 410 632 632F (mm) 87 303 303G (mm) 128 350 350

34 Electrical diagram

341 Electrical diagram of boiler

Fig6

CU-GH-08

X3X4X5

X6

X8

1

2

3

1

2

3

X14

X7

X10

X11

X13

X12

1

2

3

4

5

25 A

Nrsquo

1

2

3

4

YE

GY

BR

GR

1

2

3

4

1

2

3

4

1

2

N L

1

2

1

2

OPTION

PRESSURE

SWITCH

MW-2000850-04

230V

1 2 3 4 5 6 7 8 9 10

24V

12 11

BL OR

10 9 8 7 6

GR BK RE YE BL

5 4 3 2 1

OR BK RE YE BL

Lrsquo

BL

GY

GY

GY

BL BR

GY

BL

BR

GY BL

BR

GY

BR

GR BK RE YE BL OR BK RE YE BL

BK

BL

BR

RE

GR

GR

BK

GR

GY

YE

BR

BL

OR

1

2

3

4

5

1

2

3

RE

BK

GR

BR

BK

BL

GR

1

2

BR

GR

GY

RE BL

BL

BK

BK

BR YE

GR PI

BL

BL

GR

PI

GR

RE

BR

YE

BK

BK

BR

GY

BL

BL

BR

GY

GY

BR

BL BL GY

BR

BL

BR

BK

GYWH

GY

BL

GY

BL

BR

BK

WH

BL

GY

1 12

4

5

2

3

6

7

8

9

10

11

16

17

15

14

13

1 230 V connector connection with control unit2 Mains interference filter3 Earthing of boiler front door4 Return sensor (TR)5 Flow sensor (FTS)6 Flue gas sensor7 Flue gas pressure switch (specific option for the

Netherlands)8 Gas valve unit (GB)9 Igniter (IT)

10 Ionizationignition electrode (E)11 Fan supply12 24 V connector connection with control unit13 Storage information (CSU)14 Pressure sensor (PS)15 Fan control (PWM)16 Light17 Control unit (CU-GH08)BK BlackBL Blue

3 Technical specifications

7717202 - v03 - 24062019 Gas 120 ACE 17

BR BrownGY GreenYellowYE YellowOR OrangeGR Green

PI PinkGY GreyRD RedWH White

3 Technical specifications

18 Gas 120 ACE 7717202 - v03 - 24062019

4 Description of the product

41 General description

Gas 120 ACE floor-standing condensing gas boilers have the following characteristics

Low polluting emissionsHigh-efficiency heatingElectronic control panelFlue gas discharge by a forced flue or chimney type connection with bi-flow option

The boilers are perfectly suited to cascade installation

42 Operating principle

421 Gasair setting

The casing fitted to the boiler is also used as an air box Air is drawn in by the fan and gas injected into the Venturi by the fan intake The fan speed is modulated according to the settings the heat demand and the actual temperatures measured by the temperature sensors The gas and air are mixed in the Venturi The gasair ratio command function accurately adjusts the quantities of gas and air required This provides optimum combustion over the entire output range The gasair mixture is sent to the burner located upstream of the heat exchanger

422 Settings and safety devices

ImportantThe settings and safety devices are only operational if the boiler is powered up

Tab16 Description of the safety devicesDevice DescriptionNTC flue gas sensor The control panel blocks the gas supply to the burner in the event of overheatingFlame detector by ionisation The boiler is put into safety lock-down in the event of gas shortage or incomplete cross-

lighting on the burnerHydraulic pressure switch When the pressure switch detects a pressure lower than 08 bar (008 MPa) a warning

message is displayed without stopping the circulating pumpPost-circulating pump After the burner stops depending on the room thermostat setting and if in heating

mode the circulating pump runs for a further 3 minutesFrost protection device When the flow temperature is lower than 5 degC the burner starts up and runs until the

flow temperature reaches 15 degC This device runs under the following conditions

The boiler is switched onThe gas supply is workingThe pressure in the system is higher than 05 bar (005 MPa)

Anti-blocking of the pump If there are no heating or domestic hot water requirements for 24 consecutive hours the pumps start up automatically and run for 10 seconds

Anticipatory start-up of the circulatshying pumps

In heating mode only the appliance can start up the circulating pumps before burner igshynition The duration and activation of anticipatory start-up depends on the installation reshyquirements and the operating temperatures The duration of anticipatory start-up of the circulating pumps therefore varies from a few seconds to several minutes

4 Description of the product

7717202 - v03 - 24062019 Gas 120 ACE 19

43 Main boiler components

1 Control unit2 Flow sensor3 Light4 Ignitionionization electrode5 Non-return valve6 Gas valve7 Heat exchanger (heating circuit)8 Return sensor9 Pressure gauge sensor

10 CU-GH-08 PCB housing11 Siphon12 Flue gas circuit13 Intake silencer14 Venturi15 Flue gas sensor16 Fan17 Automatic air vent18 Flue gas measuring point19 Combustion air measuring point20 Flue gas outletair supply

44 PCBs

441 Description of the CU-GH-08 PCB

This PCB controls the core boiler components sensors actuators and gas valveThis PCB is factory-fitted and fully cabled and does not require any operationThe sensors valves circulating pumps etc are connected at the control unit

45 Standard delivery

The Gas 120 ACE boiler comes in 2 packages including

Tab17 Package contentsPackage ContentPackage 1 A floor-standing gas boiler

A flue system outlet with a measuring point (stored in the boiler)An outdoor temperature sensorA data plateAn installation and service manual

Package 2 A control unitTwo control unit mounting bolts on the boilerA user manual

46 Accessories amp options

A detailed list of accessories and options can be found in our catalogue

Fig7

MW-2000670-02

16

7 13

12

11

10

19

18

20

17

14

15

6

5

2

9

4

3

1

8

4 Description of the product

20 Gas 120 ACE 7717202 - v03 - 24062019

5 Installation

51 Installation regulations

CautionInstallation of the boiler must be done by a qualified professional in accordance with prevailing local and national regulations

CautionA disconnection device must be fitted to the permanent pipes in accordance with the installation rules

CautionRespect the maximum water inlet pressure to ensure correct operation of the appliance referring to the Technical Specifications chapter

52 Choice of the location

Decide on the ideal position for installation bearing in mind any legal directives and the space required by the appliance

Install the boiler on a solid stable structure capable of bearing the weight of the appliance when full of water and fully equippedWhen choosing the position for installation of the boiler bear in mind the positions authorised for the combustion gas discharge outlets and the air intake ventDo not install the boiler near any heat sources

521 Data plate

The data plate is located on the back of the boilerThe data plate provides important information regarding the appliance

Serial numberModelGas categoryCN1CN2etc

Once installation is complete the second data plate supplied in the documentation bag can be affixed to a more visible part of the boilerIf the boiler is equipped with a hydraulic kit (low-loss header or plate heat exchanger) affix the data plate to the side of the boiler

522 Space required - Boiler ventilation

Decide on the ideal position for installation bearing in mind any legal directives and the space required by the appliance

Install the boiler on a solid stable structure capable of bearing the weight of the appliance when full of water and fully equippedWhen choosing the position for installation of the boiler bear in mind the positions authorised for the combustion gas discharge outlets and the air intake ventDo not install the boiler near any heat sources

Fig8

MW-6000735-01

Made in France0085

CN1 17

CN2 7

230 V 50 Hz

B23(P) - B33 - C13(X) - C33(X) - C43(X) - C53 - C63(X) - C83(X) - C93(X)

PMS= 4bar - 04MPa

Pn =

8060 degC

5030 degC

NOx class 6 (Nox lt 56 mgkWh)

Qn =Hi kW

4030 degC

189-1039

196-1070

212-1097

180W

0085CT009

Hs (G20) 217-1189

IP21Imax= 10A

Tmax= 90degC

FR

LT

IT

AT

CZ

PL

II2Esi3BP

II2H3BP

II2H3BP

II2H3BP

II2H3P

II2H3BP

II2H3BP

II2ELw3BP

G20-20mbar G25-25mbar G30G31-303750mbar

G20-20mbar G30G31 - 30mbar

G20-20mbar G30G31 - 303750 mbar

G20-20mbar G30G31 - 3037mbar

G20-20mbar G31 - 30mbar

G20-20mbar G30G31 - 50mbar

G20-20mbar G30G31-303750mbar

G20-20mbar G27-20mbar G3031-37mbar

kW

Art Nr SN A0000YYWW000

kW

kW

kW

kW

kW

ESGR PT

LU RO EE

YY-WW

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 21

Keep the boiler accessible at all timesPlace the boiler on a base to make it easier to clean the roomThe boiler can be located along a partition on one of its sides provided there is a 500 mm space on the opposite sideAllow enough space around the boiler to facilitate accessibility and maintenance The minimum recommended dimensions are shown in the illustrationMake sure there is a connection to the water drainage system close to the boiler to discharge any condensates

ImportantTo fit the boiler position the pallet with the package 25 m in front of the desired location for the installation This distance is required to allow the boiler to be removed from its pallet

Tab18Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 115

A (mm) 500 500 500B (mm) 1082 1304 1304

To allow the intake of combustion air sufficient ventilation must be provided in the boiler room the cross section and position of which must satisfy the regulations in force

Great Britain BS 5440 Part 1 and Part 2

For boilers with a nominal output of more than 70 kW Upper and lower air vents comshypulsory

BS 6644 and IGEMUP-10

Caution

Avoid any low points in the flue gas and condensate discharge circuit in order to prevent any accumulation of condensatesDo not block the air inlets in the room or the combustion product evacuation or condensation water flow pipes (even partially)

If the boiler is installed in closed premises respect the minimum dimensions given in the diagram below Also allow for openings to obviate the following hazards

Accumulation of gasOverheating of the premisesGreat Britain Minimum cross section of openings see BS 5440 Part 1 and Part 2 and BS 6644

523 Ventilation

To allow the intake of combustion air sufficient ventilation must be provided in the boiler room for which the cross section and position must satisfy the regulations in force in the country in which the boiler is installed

Great Britain BS 5440 Part 1 and Part 2

For boilers with a nominal output of more than 70 kW Upper and lower air vents comshypulsory

BS 6644 and IGEMUP-10

Fig9

MW-2000679-03

500

B

1100

AS1

S2

260

580

350

600

500

5 Installation

22 Gas 120 ACE 7717202 - v03 - 24062019

If the boiler is installed in closed premises respect the minimum dimensions given in the diagram below Also allow for openings to obviate the following hazards

Accumulation of gasOverheating of the premisesGreat Britain Minimum cross section of openings see BS 5440 Part 1 and Part 2 and BS 6644

524 Fitting the outdoor sensor

Plugs diameter 4 mmdrill diameter 6 mm

1 Choose a recommended location for the outdoor sensor2 Put the 2 plugs in place delivered with the sensor3 Secure the sensor using the screws provided (diameter 4 mm)4 Connect the cable to the outdoor temperature sensor

Recommended positions

Place the outside sensor in a position that covers the following characteristics

On a faccedilade of the area to be heated on the north if possibleHalf way up the wall of the area to be heatedUnder the influence of changes in the weatherProtected from direct sunlightEasy to access

Fig11

MW-8800N001-3

2

1

2

11

2

H

12 H (min 25 m)

12 H (min 25 m)

12 Z

H

Z

1 Optimum location2 Possible position

H Inhabited height controlled by the sensorZ Inhabited area controlled by the sensor

Positions to be avoided

Avoid placing the outside sensor in a position with the following characteristics

Masked by part of the building (balcony roof etc)Close to a disruptive heat source (sun chimney ventilation grid etc)

Fig10

MW-8800N003-6

23

4

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 23

Fig12

MW-3000014-2

53 Transport

Transport the boiler pallet with a manual or electric pallet truck

54 Unpacking and preparing the boiler

Caution

Wear gloves to handle the boilerTransport the boiler pallet with a manual or electric pallet truckUse carrying bars (not provided) to move the boiler

ImportantTo fit the boiler position the pallet with the package 25 m in front of the desired location for the installation This distance is required to allow the boiler to be removed from its pallet

1 Cut the packaging2 Remove the packaging from the boiler but leave the boiler on the

shipping pallet

ImportantThe documentation bag (user manual + accessories) is contained in the protective block

Fig13

MW-6000736-01

Manual

11

12

5 Installation

24 Gas 120 ACE 7717202 - v03 - 24062019

3 Using a long tool unlock and remove the boilers front door Disconnect the earth wire

4 Remove the mounting bolts from the unloading ramps and the boiler (4 bolts at the rear and 4 bolts at the front)

5 Pull out the unloading ramps and turn them over6 Align the ramps with the rear castor wheels on the boiler

Fig14

MW-6000761-01

3

3

Fig15

MW-6000737-01

4

4

Fig16

MW-6000738-01

5

5

6

6

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 25

7 Lock the ramps correctly onto the pallet8 Screw the unloading ramps onto the pallet9 Fold down the ends of the ramp so that they rest on the ground

10 Tilt the boiler backwards until it is resting on the castor wheels then remove it from the pallet

11 Recycle the pallet

Fig17

MW-6000770-01

9

9

8

7

Fig18

MW-6000739-02

600

350

11

10

550

5 Installation

26 Gas 120 ACE 7717202 - v03 - 24062019

12 Level the boiler using the adjustable feet(1) Factory setting 30 mm adjustment range 20 to 40 mm

CautionThe rear castor wheels must no longer be in contact with the ground

55 Hydraulic connections

551 Water treatment

In many cases the boiler and the heating system can be filled with mains water without treating the water

CautionDo not add any chemical products to the heating water without first consulting a water treatment specialist For example antifreeze water softeners products to increase or reduce the pH value chemical additives andor inhibitors These may cause faults in the boiler and damage the heat exchanger

Important

Flush the installation with at least 3 times the volume of water contained in the heating systemFlush the DHW circuit with at least 20 times its volume of water

The water in the installation must comply with following specifications

Tab19 Installation water specifications Initial commissioning Concentration (top up)Degree of acidity (untreated water) pH 65 - 85 65 - 85

Degree of acidity (treated washyter) pH 70 - 90 70 - 90

Conductivity at 25degC μScm le 500 le 500Chlorides mglitre le 50 le 50Other components mglitre lt 1 lt 1

Total water hardnessdegf 5 - 35 le 15degdH 28 - 200 le 85mmollitre(1) 05 - 35 lt 15

(1) Flow temperature less than 90degC mdash Maximum hardness 150 mmoll

Fig19

MW-6000773-01

(1)

12

12

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 27

ImportantIf water treatment proves necessary Remeha recommends the following manufacturers

CillitClimalifeFernoxPermoSentinel

552 Flushing new installations and installations less than 6 months old

Before filling the heating installation it is essential to remove any debris (copper caulking soldering flux) from the installation

1 Clean the installation with a powerful universal cleaner2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

553 Flushing an existing installation

Before filling the heating installation it is essential to remove any sludge deposits which have accumulated in the heating circuit over the years

1 Remove any sludge from the installation2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

554 Connecting the heating circuit

ImportantAbide by the information shown in the hydraulic diagrams

The pipes are not provided

Caution

The heating pipe must be mounted in accordance with the provisions applicableIf installing stop valves position the filldrain valve and the expansion vessel between the stop valves and the boilerAlways install a safety valve calibrated to a maximum of 4 bar on the heating circuit The safety valve can be connected to a venting pot The safety valve must not be used to drain the heating circuitIt is recommended to install a sludge collector on all installations

SeeIf fitting with a hydraulic kit (low-loss header or plate heat exchanger) refer to the kit manual

555 Connecting the condensate discharge pipe

Use a neutralisation station to achieve a pH value of more than 65 (in accordance with prevailing regulations)Discharge the condensates directly into the mains drainage system via a siphon In view of the acidity level (pH 25 to 3) only condensate discharge pipes made from compatible plastic should be used

5 Installation

28 Gas 120 ACE 7717202 - v03 - 24062019

The condensate discharge pipe is located at the rear of the boiler

Do not block the condensate discharge pipeTilt the discharge pipe by at least 30 mm per metre and make sure there are no low points that could cause the accumulation of water or deposits Maximum horizontal length 5 metresDo not drain condensation water into a roof gutterConnect the condensate discharge pipe in accordance with prevailing standardsIt is preferable to use the condensate neutralisers recommended by the manufacturer of the boiler

1 Connect a plastic hose to the condensate discharge outlet (DN 22)2 Insert the other end of the hose into a waste water discharge outlet

556 Filling the siphon

DangerIf operating with the siphon empty combustion products will escape into the premises in which the boiler is installed

1 Pour water into the flue gas pipe (central pipe) until it flows out of the condensate discharge pipe

56 Gas connection

Danger

Close the main gas valve before starting work on the gas pipesThe diameters of the pipes must be defined in accordance with the standards in force in your countryConnect the gas pipe in accordance with prevailing standards and regulationsEnsure that there is no dust in the gas pipe

The gas pipes are not providedIn old gas networks we recommend fitting a gas filter with a low pressure drop upstream of this point

1 Clean the gas supply pipe2 Remove the anti-dust plug located on the boilers gas inlet3 Mount a gas stop valve (not provided) on the boilers gas inlet4 Connect the gas inlet pipe to the gas stop valve

Fig20

MW-2000825-01

pH gt 65

Oslash32A

Fig21

MW-6000742-02

1

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 29

5 Close the gas supply valve before testing the pressure on the gas supply pipe to avoid damage caused by excessive pressure on the gas regulator Decompress before reopening the valve

561 Gas supply

Before mounting check that the gas meter has sufficient capacity (in m3h) To do this you should bear in mind the consumption of all appliances If the capacity of the gas meter is too low inform the gas supply companyThe boilers are preset to run on G20 gas (gas H) and can be adapted to run with the following gases

G31 (gas P)G3031 (gas BP)

ImportantTo use a different type of gas contact an approved assistance service

57 Air supplyflue gas outlet connections

571 Classification

The discharge and intake pipes must be certified for the appropriate configuration and must meet the requirements of the prevailing installation standards in the country

Tab20 Configurations and recommendations for the flue systemConfiguration Principle DescriptionB23B23P

AD-3001055-01

Connection to a chimney using a CE connection kit (single pipe in a flue comshybustion air taken from the boiler room)Follow the connection instructions and adhere to the recommended maximum pipe lengthsComply with the applicable regulations governing ventilation and cross-secshytions for room aeration vents

B33

MW-5000925-1

Room-ventilated version

Without down-draught diverterJoint flue gas discharge via the roof with guaranteed natural draft (at all times underpressure in the joint discharge duct)Flue gas discharge rinsed with air air from the installation area (special conshystruction)The IP rating of the boiler is lowered to IP20

C13C13X

AD-3001056-01

Airflue gas connection using concentric pipes to a horizontal terminal (so-called forced flue) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

5 Installation

30 Gas 120 ACE 7717202 - v03 - 24062019

Configuration Principle DescriptionC33C33X

AD-3001057-01

Airflue gas connection using concentric pipes to a vertical terminal (roof outshylet) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

C43C43X

MW-2000822-01

Airflue gas connection via concentric pipes to a common pipe supplying severshyal heating applicationsThe common pipe has a roof connection to a vertical terminal that draws in the air required for combustion and discharges the combustion productsUse of CE-certified system

C53

AD-3001058-02

Airflue gas connection via separate pipes lead to two separate terminals One draws in the air required for combustion and the other discharges the combusshytion productsThe outlets may be in different pressure zonesDo not install the air supply and discharge on opposing surfacesUse of CE-certified system

C63C63X

The installer is responsible for installing a CE-certified discharge system that complies with the manufacturers recommendations (temperature flow pressure etc)

The maximum pressure drop in the pipes ΔP must not exceed the values given in the table below The pipes must be certified for this type of use and for a temperature of more than 100 degC The terminal part of the flue gas pipe must be certified as complying with the EN 1856-1 StandardIf installing discharge and intake pipes not supplied by Remeha these must be certified for the intended type of use and their maximum pressure drop must be compliant

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 31

Configuration Principle DescriptionC83C83X

MW-2000823-01

Flue gas connection to a collective flue for sealed boilers The air supply is inshydividual via a terminal coming from outside the buildingA concentric pipe can be used to both supply the boiler with combustion air and connect to the collective flue gas discharge systemThe chimney or flue gas pipe must be suitable for such use and the system CE certified

C93C93X

AD-3001059-01

Airflue gas connection via concentric pipes in an existing chimney The air supshyply in the chimney may be installed via the existing channel or via tubing Flue gas discharge and air intake are via a vertical terminal at the top of the chimney

The air intake and discharge must be close enough to be in the same pressure zoneThe minimum cross-sections are shown in the table belowThe flue system must be suitable for the intended use and the system CE certishyfied

Tab21 Minimum dimensions of the duct or pipe C93 C93X

Version (D) Without air supply With air supplyRigid 80 mm Oslash 130 mm 130 x 130 mm Oslash 140 mm 130 x 130 mmRigid 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmRigid 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmFlexible 80 mm Oslash 130 mm 130 x 130 mm Oslash 145 mm 130 x 130 mmFlexible 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmFlexible 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmConcentric 80125 mm Oslash 145 mm 145 x 145 mm Oslash 145 mm 145 x 145 mmConcentric 100150 mm Oslash 170 mm 170 x 170 mm Oslash 170 mm 170 x 170 mmConcentric 150200 mm Oslash 270 mm 270 x 270 mm - -

ImportantThe duct must comply with the air density requirements of the local regulations

Important

Only original components are authorised for connection to the boiler and for the terminalThe clear section must comply with the standardThe chimney must be swept before installing the discharge flue

CautionEnsure that the flue gas discharge pipes are securely attached to the wall with suitable retaining flanges to prevent any damage and guarantee the tightness of every gasket in the circuit

CautionThe minimum gradient of the condensates discharge pipe from the boiler to the waste water discharge must be 1 cm per linear metre

Fig22 Minimum dimensions of the duct or pipe C93 C93X

AD-3000330-03

D

Oslash

D

5 Installation

32 Gas 120 ACE 7717202 - v03 - 24062019

572 Lengths of the airflue gas pipes

The maximum lengths (Lmax) given in the table are valid for pipes in which the horizontal sections do not exceed one metre in total For each additional metre of horizontal pipe a multiplication coefficient of 12 must be applied when calculating the total length L The total length L is calculated by adding the lengths of the straight airflue gas pipes and the equivalent lengths of the other componentsAlways ensure that L is less than Lmax

ImportantFor the list of flue gas system accessories and the equivalent lengths refer to the current price list

Tab22 Lengths of the airflue gas pipes in metresConfigurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 100 mm 26 24 19

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 110 mm 40 40 40

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 110 mm 295 24 175

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 80125 mm - - -

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 100150 mm 9 8 59

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 80125 mm - - -

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 100150 mm 115 10 94

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 80125 mm over 2x80 mm

- - -

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 100150 mm over 2x100 mm

23 175 Air 11Flue gases 5

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm110 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 110150 mm110 mm

16 132 10

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 33

Configurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 110150 mm110 mm

165 135 94

Tab23 PPS pipe reduction for each element used

Diameter 80 mmSingle

80125 mmConcentric

100 mmSingle

100150 mmConcentric

45deg elbow 12 m 10 m 11 m 10 m87deg elbow 19 m 15 m 20 m 37 mStraight inspection tube 03 m 06 m - 10 m87deg inspection elbow 19 m 20 m 48 m -Inspection T 42 m 27 m 56 m 25 mInspection tube for flexible pipe 03 m - 05 m -

573 Dimensions of flue gas outlet pipe

WarningThe pipes connected to the flue gas adapter must satisfy the following dimension requirements

d1 External dimensions of flue gas outlet pipe

Tab24 Dimensions of pipe d1 (min-max)80 mm 793 - 803 mm100 mm 993 - 1003 mm150 mm 149 - 151 mm

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipe

Tab25 Dimensions of pipe d1 (min-max) D1 (min-max)8080 mm 793 - 803 mm 793 - 803 mm100100 mm 993 - 1003 mm 993 - 1003 mm110110 mm 1093 - 1103 mm 1093 - 1103 mm150150 mm 149 - 151 mm 149 - 151 mm

Fig23 Dimensions of open connection

AD-3001094-01

oslashd1

Fig24 Dimensions of parallel connection

AD-3000963-01

oslashd1 oslashD1

5 Installation

34 Gas 120 ACE 7717202 - v03 - 24062019

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipeL1 Length difference between flue gas outlet pipe and air supply pipe

Tab26 Dimensions of pipe d1 (min-max) D1 (min-max) L1

(1) (min-max)80125 mm 793 - 803 mm 124 - 1255 mm 0 - 15 mm100150 mm 993 - 1003 mm 149 - 151 mm 0 - 15 mm

(1) Shorten the inner pipe if the length difference is too great

574 Connection to the flue gas pipe

At delivery the flue gas outletair supply is fixed inside the boiler

1 Using a long tool unlock and remove the boilers front door2 Remove the boiler outlet

3 Two options for connection to the flue gas pipe

Option Description3a Connection to a vertical flue gas pipe Position the flue gas

outletair supply directly at the boiler outlet3b Connection to a horizontal flue gas pipe Insert an outlet elshy

bow ( not supplied) before the flue gas outletair supply

ImportantLubricate the gaskets on the flue system during assembly

Fig25 Dimensions of concentric connection

AD-3000962-01

oslashd1

L1

oslashD1

Fig26

MW-2000867-02

1

2

1

Fig27

3a 3b

MW-2000868-01

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 35

Fastening the coaxial pipes Fasten the intake pipes with two galvanised Oslash 42 mm screws with a maximum length of 16 mm

CautionBefore fixing the screws make sure that at least 45 cm of pipe is inserted in the gasket of the other pipe

WarningGuarantee a minimum pipe slope towards the boiler of at least 5 cm per metre

Fig28 Fastening the coaxial pipes using screws

BO-0000030

16 mm

5 Installation

36 Gas 120 ACE 7717202 - v03 - 24062019

6 Operation

61 Settings

To configure the installation and use the boiler please refer to the control unit manual

6 Operation

7717202 - v03 - 24062019 Gas 120 ACE 37

7 Maintenance

71 General

We recommend having the boiler inspected and serviced at regular intervals

CautionDo not neglect to service the boiler Contact a qualified professional or take out a maintenance contract for the obligatory annual servicing of the boilerFailure to service the appliance voids the warranty

Danger of electric shockBefore service work is started the boiler has to be de-energised and secured from accidentally being switched back on

CautionHave an inspection carried out and the flues swept at least once a year or more depending on the regulations in force in your country

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

CautionAfter maintenance or repair work check the entire heating system to ensure that there are no leaks

CautionOnly genuine spare parts may be used

72 Specific maintenance operations

721 Cleaning the siphon

1 Remove the flue gas outlet discharge pipe

2 Remove the condensate discharge pipe 3 Remove the screw from the siphon

Fig29

1

MW-2000903-01

Fig30

2

3

MW-2000904-01

7 Maintenance

38 Gas 120 ACE 7717202 - v03 - 24062019

4 Pull the siphon downwards to disengage it and pivot it to release it

5 Flush the siphon 6 Drain the siphon

7 Fill the siphon with clean water up to the mark 8 Lubricate the siphon gasket9 Re-engage the siphon and refit the screw

10 Refit the two pipes

722 Checking the ionisation current

1 Check the ionisation current at full load and at low loadThe value is stable after 1 minute

2 Clean or replace the ionisationignition electrode if the value is lower than 4 microA

Fig31

4

90deg

MW-2000905-01

Fig32

MW-2000843-01

Fig33

MW-2000844-01

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 39

723 Replace the ionizationignition electrode

The ionizationignition electrode must be replaced if

The ionization current is lt 4 microAThe electrode is damaged or worn

1 Remove the plug of the electrode from the igniter

ImportantThe ignition cable is fixed to the electrode and therefore may not be removed

2 Remove the two screws3 Remove the entire component4 Fit the new ionizationignition electrode with a new seal5 Reassemble the unit in the reverse order to disassembly

724 Servicing the forced flue connection pipes

1 Open the inspection hatches or remove the pipes2 Check that the air supply and discharge pipes are not blocked

If necessary clean the discharge pipe3 Check the tightness of the flue gas system4 Replace the tightness gaskets and if necessary any sections of pipe

until tightness is perfect

725 Checking the burner and cleaning the heat exchanger

1 Remove the air inlet flue on the venturi2 Loosen the gland on the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

Fig34

AD-0000088-01

4

1

2

3

Fig35 Removing the fan

AD-3001178-01

1

3

4

2

5

7 Maintenance

40 Gas 120 ACE 7717202 - v03 - 24062019

6 Remove the front plate from the heat exchanger7 Carefully lift the front plate including the burner and fan away from

the heat exchanger

8 Use a vacuum cleaner fitted with a special endpiece (accessory) to clean the top part of the heat exchanger (combustion chamber)

9 Vacuum again without the top brush on the end piece10 Clean the lower section of the heat exchanger with the special

cleaning blade (accessory)11 Check (eg using a mirror) whether any visible contamination has

been left behind If it has remove it with the vacuum cleaner12 Check that the burner cover of the dismantled burner is free from

cracks andor damage If not replace the burnerServicing the burner is usually not necessary it is self-cleaning Use compressed air to carefully blow away any dust

13 Reassemble the unit in reverse order

CautionRemember to reconnect the fan plugCheck that the gasket is correctly positioned between the mixing elbow and the heat exchanger (the gasket must lie absolutely flat in the appropriate groove to ensure that no gas can leak)Tighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the front plate nuts with a torque wrench to the firmness of 10 Nm

14 Open the gas supply and switch the power supply to the boiler back on

Fig36 Removing the front plate fan and burner

AD-3001179-01

6

7

Fig37 Cleaning the heat exchanger

AD-3001180-01

10

8 9

12

11

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 41

726 Checking the non-return valve

1 Remove the air inlet pipe from the venturi2 Unscrew the gland of the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

6 Dismantle the fan7 Remove the fan together with the gas valve unit8 Inspect the non-return valve and replace it in the event of a defect or

damage or if the maintenance kit contains a non-return valve9 Reassemble in the reverse order

CautionRemember to reconnect the fan plugTighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the two fan nuts with a torque wrench to the firmness of 38 Nm

Fig38 Disconnecting the fan

AD-3001178-01

1

3

4

2

5

Fig39 Checking the non-return valve

AD-3001181-01

2x

68

7

9

7 Maintenance

42 Gas 120 ACE 7717202 - v03 - 24062019

8 Decommissioning

81 Decommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

To switch off the boiler temporarily or permanently proceed as follows

1 Switch the boiler off2 Cut the electrical power to the boiler3 Close the gas valve on the boiler4 Drain the central heating system or ensure frost protection5 Close the door of the boiler to prevent air circulating inside it6 Remove the pipe connecting the boiler to the chimney and close the

nozzle with a plug

82 Recommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

Should it prove necessary to carry out the recommissioning of the boiler proceed as follows

1 Re-establish electrical power to the boiler2 Fit and check the flue gas pipe3 Fill the siphon with water4 Fill the central heating system5 Open the boiler gas valve6 Start up the boiler

8 Decommissioning

7717202 - v03 - 24062019 Gas 120 ACE 43

9 Disposal and recyclingCautionOnly qualified professionals are permitted to remove and dispose of the boiler in accordance with local and national regulations

If you need to remove the boiler proceed as follows

1 Switch off the boiler2 Cut the power supply to the boiler3 Close the main gas valve4 Close the water mains5 Close the gas valve on the boiler6 Drain the installation7 Remove the airflue gas pipes8 Disconnect all pipes9 Dismantle the boiler

Fig40

MW-3000179-03

9 Disposal and recycling

44 Gas 120 ACE 7717202 - v03 - 24062019

10 Environmental

101 Energy savings

Energy-saving advice

Do not block ventilation outletsDo not cover the radiators Do not hang curtains in front of the radiatorsInstall reflective panels behind the radiators to prevent heat lossesInsulate the pipes in rooms that are not heated (cellars and lofts)Close the radiators in rooms not in useDo not run hot (or cold) water pointlesslyInstall an energy-saving shower head which can save up to 40 energyTake showers rather than baths A bath consumes twice as much water and energy

102 Room thermostat and settings

Various models of room thermostat are available The type of thermostat used and the parameter selected impact total energy consumption

A modulating regulator which may be combined with thermostatic valves is eco-friendly in terms of energy and offers an excellent level of comfort This combination allows you to set the temperature separately for each room However do not install thermostatic radiator valves in the room in which the room thermostat is locatedComplete opening and closing of the thermostatic radiator valves causes undesirable variations in temperature Therefore these must be openedclosed progressivelySet the room thermostat to a temperature of approximately 20degC to reduce heating costs and energy consumptionLower the thermostat setting to approximately 16degC at night or when you are not at home This reduces heating costs and energy consumptionLower the thermostat setting well before airing the roomsSet the water temperature to a lower level in summer than in winter (eg 60degC and 80degC respectively) when an ONOFF thermostatis usedWhen clock thermostats and programmable thermostats are to be set do not forget to take any holidays and days when no one is at home into account

10 Environmental

7717202 - v03 - 24062019 Gas 120 ACE 45

11 Warranty

111 General

We would like to thank you for buying one of our appliances and for your trust in our productIn order to ensure continued safe and efficient operation we recommend that the product is regularly inspected and maintainedYour installer and our service department can assist with this

112 Terms of warranty

The following provisions do not affect the application in favour of the buyer of the legal provisions with regard to hidden defects that are applicable in the buyers countryThis appliance comes with a warranty that covers all manufacturing faults the warranty period will commence on the date of purchase stated on the installers invoiceThe warranty period is stated in our price listAs a manufacturer we can by no means be held liable if the appliance is used incorrectly is poorly maintained or not maintained at all or is not installed correctly (it is your responsibility to ensure that installation is carried out by a qualified installer)In particular we cannot be held liable for material damage intangible losses or physical injury resulting from an installation that does not comply with

Legal or regulatory requirements or provisions laid down by the local authoritiesNational or local regulations and special provisions relating to the installationOur manuals and installation instructions in particular in terms of regular maintenance of the appliances

Our warranty is limited to the replacement or repair of the parts found to be defective by our technical services team excluding labour transfer and transport costsOur warranty does not cover replacement or repair costs for parts that may become defective due to normal wear incorrect usage the intervention of unqualified third parties inadequate or insufficient supervision or maintenance a mains supply that is not appropriate or the use of unsuitable or poor quality fuelSmaller parts such as motors pumps electrical valves etc are guaranteed only if these parts have never been dismantledThe rights established in European Directive 9944EEC implemented by legal decree No 24 of 2 February 2002 and published in Official Journal No 57 of 8 March 2002 remain in force

11 Warranty

46 Gas 120 ACE 7717202 - v03 - 24062019

12 Spare parts

121 General

If inspection or maintenance work bring to light the need to replace a component in the boilerProvide the reference number given in the spare parts list when ordering a spare part

CautionOnly genuine spare parts may be used

122 Spare parts lists

1221 Exchanger

Fig41

MW-6000743-01

811x

7

7

4

2

16

3

10

119

65

1

13

12

18

14

19

15

18

17

Tab27

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

1 7699615 Complete exchanger x 1 7699614 Complete exchanger x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 47

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

2 S101564 Exchanger front plate x x x3 S54731 Exchanger inspection hatch insulation x x x4 S57241 Exchanger inspection hatch gasket x x x5 S100052 M4x10 self-locking screw (x20) x x x6 S54754 FURQ65 burner x 6 S57477 FURQ85 burner x x7 7623837 Set of 10 k NTC sensors x x x8 S54755 M6 nut (x20) x x x9 7659755 M4x10 screw (x10) x x x10 S53489 Electrode gasket (x10) x x x11 7692359 Ignition electrode x x x12 7631936 Flue gas flow pipe diameter 100 mm x x x13 7624643 NTC 2x20 k flue gas sensor with gasket x x x14 7624619 Ignition transformer x x x15 S56987 ZP M6x16 screw (x10) x x x16 7616253 Valve with support x x x17 7680596 Exchanger bracket x 17 7673616 Exchanger bracket x x18 7701752 Gasket diameter 100 mm (x5) x x x19 7632708 Earth electric clip (x2) x x x

1222 Gas circuit

Fig42

MW-6000744-01

3

2

5

6

9

4

8

10

7

12

11

1

14

13

13

12 Spare parts

48 Gas 120 ACE 7717202 - v03 - 24062019

Tab28Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 S101543 Silencer x 1 S101520 Silencer x 1 S101578 Silencer x2 S54777 Venturi gasket (x5) x 2 S59215 Gas valve-venturi gasket (x5) x 2 S101593 Gaskets (kit) x3 S101726 Fan RG 1481200-3633 x x 3 S100036 Fan RG 148 1200-3633-010202 x4 S101596 Gas valve VK4115v1386 x 4 S101597 Gas valve VK4115vb1012 x 4 S101510 Gas valve GB-ND 057 XP x5 S54766 Venturi x 5 S57488 Venturi x 5 S101595 Venturi VMS 45900450-010 x6 S59215 Gas valve-venturi gasket (x5) x x 7 S57827 Gas valve unit flange x8 S57828 268x22x25 O-ring (x5) x9 S101631 Diaphragm x10 7616249 Flue gas sensor cap (5x) x x x11 S56155 238x177x2 gasket (x20) x x x12 95760050 C HC M4-12 88 ZN3 screw x x x13 S48512 M5-10 screw (x10) x x x14 S101590 Silencer retaining clip x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 49

1223 Hydraulic circuit

Fig43

MW-6000745-01

1

14

6

9

11

8

12

5

37

9

10

2

4

13

Tab29Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7680598 Complete flow pipe x 1 7670807 Complete flow pipe x x2 7672557 Complete return pipe x x x3 7674076 Complete gas pipe x 3 7680434 Complete gas pipe x 3 7670720 Complete gas pipe x4 7698560 HUBA G38 pressure gauge x x x5 94994712 PVC pipe diameter 16x12 x x x6 7699357 Water deflector diameter 100 mm x x x7 94902073 Drain valve 12 x x x8 94918138 Air vent x x x9 95013064 44x32x2 mm green gasket x x x10 95013060 24x17x2 mm green gasket x x 10 95013062 30x21x12 mm green gasket x11 7692329 Condensate hose x x x13 7706103 Assembled siphon height 160 mm x 13 7706038 Assembled siphon height 250 mm x x14 7103731 Condensate drain pan gasket x x x

12 Spare parts

50 Gas 120 ACE 7717202 - v03 - 24062019

1224 Boiler body

Fig44

MW-6000746-01

2

2

1

6

3

34

5

4

Tab30Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7686377 Assembled frame x 1 7686139 Assembled frame x x2 7679958 117x34 handle diameter 65 mm x x x3 7676037 Wheel x x x4 7688301 Frame lateral gasket x 4 7688008 Frame lateral gasket x x5 7688353 Front panel gasket x 5 7688007 Front panel gasket x x6 7693874 R4-05 front panel lock x x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 51

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

E toimistoestsystemsfi

Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 18: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

BR BrownGY GreenYellowYE YellowOR OrangeGR Green

PI PinkGY GreyRD RedWH White

3 Technical specifications

18 Gas 120 ACE 7717202 - v03 - 24062019

4 Description of the product

41 General description

Gas 120 ACE floor-standing condensing gas boilers have the following characteristics

Low polluting emissionsHigh-efficiency heatingElectronic control panelFlue gas discharge by a forced flue or chimney type connection with bi-flow option

The boilers are perfectly suited to cascade installation

42 Operating principle

421 Gasair setting

The casing fitted to the boiler is also used as an air box Air is drawn in by the fan and gas injected into the Venturi by the fan intake The fan speed is modulated according to the settings the heat demand and the actual temperatures measured by the temperature sensors The gas and air are mixed in the Venturi The gasair ratio command function accurately adjusts the quantities of gas and air required This provides optimum combustion over the entire output range The gasair mixture is sent to the burner located upstream of the heat exchanger

422 Settings and safety devices

ImportantThe settings and safety devices are only operational if the boiler is powered up

Tab16 Description of the safety devicesDevice DescriptionNTC flue gas sensor The control panel blocks the gas supply to the burner in the event of overheatingFlame detector by ionisation The boiler is put into safety lock-down in the event of gas shortage or incomplete cross-

lighting on the burnerHydraulic pressure switch When the pressure switch detects a pressure lower than 08 bar (008 MPa) a warning

message is displayed without stopping the circulating pumpPost-circulating pump After the burner stops depending on the room thermostat setting and if in heating

mode the circulating pump runs for a further 3 minutesFrost protection device When the flow temperature is lower than 5 degC the burner starts up and runs until the

flow temperature reaches 15 degC This device runs under the following conditions

The boiler is switched onThe gas supply is workingThe pressure in the system is higher than 05 bar (005 MPa)

Anti-blocking of the pump If there are no heating or domestic hot water requirements for 24 consecutive hours the pumps start up automatically and run for 10 seconds

Anticipatory start-up of the circulatshying pumps

In heating mode only the appliance can start up the circulating pumps before burner igshynition The duration and activation of anticipatory start-up depends on the installation reshyquirements and the operating temperatures The duration of anticipatory start-up of the circulating pumps therefore varies from a few seconds to several minutes

4 Description of the product

7717202 - v03 - 24062019 Gas 120 ACE 19

43 Main boiler components

1 Control unit2 Flow sensor3 Light4 Ignitionionization electrode5 Non-return valve6 Gas valve7 Heat exchanger (heating circuit)8 Return sensor9 Pressure gauge sensor

10 CU-GH-08 PCB housing11 Siphon12 Flue gas circuit13 Intake silencer14 Venturi15 Flue gas sensor16 Fan17 Automatic air vent18 Flue gas measuring point19 Combustion air measuring point20 Flue gas outletair supply

44 PCBs

441 Description of the CU-GH-08 PCB

This PCB controls the core boiler components sensors actuators and gas valveThis PCB is factory-fitted and fully cabled and does not require any operationThe sensors valves circulating pumps etc are connected at the control unit

45 Standard delivery

The Gas 120 ACE boiler comes in 2 packages including

Tab17 Package contentsPackage ContentPackage 1 A floor-standing gas boiler

A flue system outlet with a measuring point (stored in the boiler)An outdoor temperature sensorA data plateAn installation and service manual

Package 2 A control unitTwo control unit mounting bolts on the boilerA user manual

46 Accessories amp options

A detailed list of accessories and options can be found in our catalogue

Fig7

MW-2000670-02

16

7 13

12

11

10

19

18

20

17

14

15

6

5

2

9

4

3

1

8

4 Description of the product

20 Gas 120 ACE 7717202 - v03 - 24062019

5 Installation

51 Installation regulations

CautionInstallation of the boiler must be done by a qualified professional in accordance with prevailing local and national regulations

CautionA disconnection device must be fitted to the permanent pipes in accordance with the installation rules

CautionRespect the maximum water inlet pressure to ensure correct operation of the appliance referring to the Technical Specifications chapter

52 Choice of the location

Decide on the ideal position for installation bearing in mind any legal directives and the space required by the appliance

Install the boiler on a solid stable structure capable of bearing the weight of the appliance when full of water and fully equippedWhen choosing the position for installation of the boiler bear in mind the positions authorised for the combustion gas discharge outlets and the air intake ventDo not install the boiler near any heat sources

521 Data plate

The data plate is located on the back of the boilerThe data plate provides important information regarding the appliance

Serial numberModelGas categoryCN1CN2etc

Once installation is complete the second data plate supplied in the documentation bag can be affixed to a more visible part of the boilerIf the boiler is equipped with a hydraulic kit (low-loss header or plate heat exchanger) affix the data plate to the side of the boiler

522 Space required - Boiler ventilation

Decide on the ideal position for installation bearing in mind any legal directives and the space required by the appliance

Install the boiler on a solid stable structure capable of bearing the weight of the appliance when full of water and fully equippedWhen choosing the position for installation of the boiler bear in mind the positions authorised for the combustion gas discharge outlets and the air intake ventDo not install the boiler near any heat sources

Fig8

MW-6000735-01

Made in France0085

CN1 17

CN2 7

230 V 50 Hz

B23(P) - B33 - C13(X) - C33(X) - C43(X) - C53 - C63(X) - C83(X) - C93(X)

PMS= 4bar - 04MPa

Pn =

8060 degC

5030 degC

NOx class 6 (Nox lt 56 mgkWh)

Qn =Hi kW

4030 degC

189-1039

196-1070

212-1097

180W

0085CT009

Hs (G20) 217-1189

IP21Imax= 10A

Tmax= 90degC

FR

LT

IT

AT

CZ

PL

II2Esi3BP

II2H3BP

II2H3BP

II2H3BP

II2H3P

II2H3BP

II2H3BP

II2ELw3BP

G20-20mbar G25-25mbar G30G31-303750mbar

G20-20mbar G30G31 - 30mbar

G20-20mbar G30G31 - 303750 mbar

G20-20mbar G30G31 - 3037mbar

G20-20mbar G31 - 30mbar

G20-20mbar G30G31 - 50mbar

G20-20mbar G30G31-303750mbar

G20-20mbar G27-20mbar G3031-37mbar

kW

Art Nr SN A0000YYWW000

kW

kW

kW

kW

kW

ESGR PT

LU RO EE

YY-WW

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 21

Keep the boiler accessible at all timesPlace the boiler on a base to make it easier to clean the roomThe boiler can be located along a partition on one of its sides provided there is a 500 mm space on the opposite sideAllow enough space around the boiler to facilitate accessibility and maintenance The minimum recommended dimensions are shown in the illustrationMake sure there is a connection to the water drainage system close to the boiler to discharge any condensates

ImportantTo fit the boiler position the pallet with the package 25 m in front of the desired location for the installation This distance is required to allow the boiler to be removed from its pallet

Tab18Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 115

A (mm) 500 500 500B (mm) 1082 1304 1304

To allow the intake of combustion air sufficient ventilation must be provided in the boiler room the cross section and position of which must satisfy the regulations in force

Great Britain BS 5440 Part 1 and Part 2

For boilers with a nominal output of more than 70 kW Upper and lower air vents comshypulsory

BS 6644 and IGEMUP-10

Caution

Avoid any low points in the flue gas and condensate discharge circuit in order to prevent any accumulation of condensatesDo not block the air inlets in the room or the combustion product evacuation or condensation water flow pipes (even partially)

If the boiler is installed in closed premises respect the minimum dimensions given in the diagram below Also allow for openings to obviate the following hazards

Accumulation of gasOverheating of the premisesGreat Britain Minimum cross section of openings see BS 5440 Part 1 and Part 2 and BS 6644

523 Ventilation

To allow the intake of combustion air sufficient ventilation must be provided in the boiler room for which the cross section and position must satisfy the regulations in force in the country in which the boiler is installed

Great Britain BS 5440 Part 1 and Part 2

For boilers with a nominal output of more than 70 kW Upper and lower air vents comshypulsory

BS 6644 and IGEMUP-10

Fig9

MW-2000679-03

500

B

1100

AS1

S2

260

580

350

600

500

5 Installation

22 Gas 120 ACE 7717202 - v03 - 24062019

If the boiler is installed in closed premises respect the minimum dimensions given in the diagram below Also allow for openings to obviate the following hazards

Accumulation of gasOverheating of the premisesGreat Britain Minimum cross section of openings see BS 5440 Part 1 and Part 2 and BS 6644

524 Fitting the outdoor sensor

Plugs diameter 4 mmdrill diameter 6 mm

1 Choose a recommended location for the outdoor sensor2 Put the 2 plugs in place delivered with the sensor3 Secure the sensor using the screws provided (diameter 4 mm)4 Connect the cable to the outdoor temperature sensor

Recommended positions

Place the outside sensor in a position that covers the following characteristics

On a faccedilade of the area to be heated on the north if possibleHalf way up the wall of the area to be heatedUnder the influence of changes in the weatherProtected from direct sunlightEasy to access

Fig11

MW-8800N001-3

2

1

2

11

2

H

12 H (min 25 m)

12 H (min 25 m)

12 Z

H

Z

1 Optimum location2 Possible position

H Inhabited height controlled by the sensorZ Inhabited area controlled by the sensor

Positions to be avoided

Avoid placing the outside sensor in a position with the following characteristics

Masked by part of the building (balcony roof etc)Close to a disruptive heat source (sun chimney ventilation grid etc)

Fig10

MW-8800N003-6

23

4

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 23

Fig12

MW-3000014-2

53 Transport

Transport the boiler pallet with a manual or electric pallet truck

54 Unpacking and preparing the boiler

Caution

Wear gloves to handle the boilerTransport the boiler pallet with a manual or electric pallet truckUse carrying bars (not provided) to move the boiler

ImportantTo fit the boiler position the pallet with the package 25 m in front of the desired location for the installation This distance is required to allow the boiler to be removed from its pallet

1 Cut the packaging2 Remove the packaging from the boiler but leave the boiler on the

shipping pallet

ImportantThe documentation bag (user manual + accessories) is contained in the protective block

Fig13

MW-6000736-01

Manual

11

12

5 Installation

24 Gas 120 ACE 7717202 - v03 - 24062019

3 Using a long tool unlock and remove the boilers front door Disconnect the earth wire

4 Remove the mounting bolts from the unloading ramps and the boiler (4 bolts at the rear and 4 bolts at the front)

5 Pull out the unloading ramps and turn them over6 Align the ramps with the rear castor wheels on the boiler

Fig14

MW-6000761-01

3

3

Fig15

MW-6000737-01

4

4

Fig16

MW-6000738-01

5

5

6

6

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 25

7 Lock the ramps correctly onto the pallet8 Screw the unloading ramps onto the pallet9 Fold down the ends of the ramp so that they rest on the ground

10 Tilt the boiler backwards until it is resting on the castor wheels then remove it from the pallet

11 Recycle the pallet

Fig17

MW-6000770-01

9

9

8

7

Fig18

MW-6000739-02

600

350

11

10

550

5 Installation

26 Gas 120 ACE 7717202 - v03 - 24062019

12 Level the boiler using the adjustable feet(1) Factory setting 30 mm adjustment range 20 to 40 mm

CautionThe rear castor wheels must no longer be in contact with the ground

55 Hydraulic connections

551 Water treatment

In many cases the boiler and the heating system can be filled with mains water without treating the water

CautionDo not add any chemical products to the heating water without first consulting a water treatment specialist For example antifreeze water softeners products to increase or reduce the pH value chemical additives andor inhibitors These may cause faults in the boiler and damage the heat exchanger

Important

Flush the installation with at least 3 times the volume of water contained in the heating systemFlush the DHW circuit with at least 20 times its volume of water

The water in the installation must comply with following specifications

Tab19 Installation water specifications Initial commissioning Concentration (top up)Degree of acidity (untreated water) pH 65 - 85 65 - 85

Degree of acidity (treated washyter) pH 70 - 90 70 - 90

Conductivity at 25degC μScm le 500 le 500Chlorides mglitre le 50 le 50Other components mglitre lt 1 lt 1

Total water hardnessdegf 5 - 35 le 15degdH 28 - 200 le 85mmollitre(1) 05 - 35 lt 15

(1) Flow temperature less than 90degC mdash Maximum hardness 150 mmoll

Fig19

MW-6000773-01

(1)

12

12

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 27

ImportantIf water treatment proves necessary Remeha recommends the following manufacturers

CillitClimalifeFernoxPermoSentinel

552 Flushing new installations and installations less than 6 months old

Before filling the heating installation it is essential to remove any debris (copper caulking soldering flux) from the installation

1 Clean the installation with a powerful universal cleaner2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

553 Flushing an existing installation

Before filling the heating installation it is essential to remove any sludge deposits which have accumulated in the heating circuit over the years

1 Remove any sludge from the installation2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

554 Connecting the heating circuit

ImportantAbide by the information shown in the hydraulic diagrams

The pipes are not provided

Caution

The heating pipe must be mounted in accordance with the provisions applicableIf installing stop valves position the filldrain valve and the expansion vessel between the stop valves and the boilerAlways install a safety valve calibrated to a maximum of 4 bar on the heating circuit The safety valve can be connected to a venting pot The safety valve must not be used to drain the heating circuitIt is recommended to install a sludge collector on all installations

SeeIf fitting with a hydraulic kit (low-loss header or plate heat exchanger) refer to the kit manual

555 Connecting the condensate discharge pipe

Use a neutralisation station to achieve a pH value of more than 65 (in accordance with prevailing regulations)Discharge the condensates directly into the mains drainage system via a siphon In view of the acidity level (pH 25 to 3) only condensate discharge pipes made from compatible plastic should be used

5 Installation

28 Gas 120 ACE 7717202 - v03 - 24062019

The condensate discharge pipe is located at the rear of the boiler

Do not block the condensate discharge pipeTilt the discharge pipe by at least 30 mm per metre and make sure there are no low points that could cause the accumulation of water or deposits Maximum horizontal length 5 metresDo not drain condensation water into a roof gutterConnect the condensate discharge pipe in accordance with prevailing standardsIt is preferable to use the condensate neutralisers recommended by the manufacturer of the boiler

1 Connect a plastic hose to the condensate discharge outlet (DN 22)2 Insert the other end of the hose into a waste water discharge outlet

556 Filling the siphon

DangerIf operating with the siphon empty combustion products will escape into the premises in which the boiler is installed

1 Pour water into the flue gas pipe (central pipe) until it flows out of the condensate discharge pipe

56 Gas connection

Danger

Close the main gas valve before starting work on the gas pipesThe diameters of the pipes must be defined in accordance with the standards in force in your countryConnect the gas pipe in accordance with prevailing standards and regulationsEnsure that there is no dust in the gas pipe

The gas pipes are not providedIn old gas networks we recommend fitting a gas filter with a low pressure drop upstream of this point

1 Clean the gas supply pipe2 Remove the anti-dust plug located on the boilers gas inlet3 Mount a gas stop valve (not provided) on the boilers gas inlet4 Connect the gas inlet pipe to the gas stop valve

Fig20

MW-2000825-01

pH gt 65

Oslash32A

Fig21

MW-6000742-02

1

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 29

5 Close the gas supply valve before testing the pressure on the gas supply pipe to avoid damage caused by excessive pressure on the gas regulator Decompress before reopening the valve

561 Gas supply

Before mounting check that the gas meter has sufficient capacity (in m3h) To do this you should bear in mind the consumption of all appliances If the capacity of the gas meter is too low inform the gas supply companyThe boilers are preset to run on G20 gas (gas H) and can be adapted to run with the following gases

G31 (gas P)G3031 (gas BP)

ImportantTo use a different type of gas contact an approved assistance service

57 Air supplyflue gas outlet connections

571 Classification

The discharge and intake pipes must be certified for the appropriate configuration and must meet the requirements of the prevailing installation standards in the country

Tab20 Configurations and recommendations for the flue systemConfiguration Principle DescriptionB23B23P

AD-3001055-01

Connection to a chimney using a CE connection kit (single pipe in a flue comshybustion air taken from the boiler room)Follow the connection instructions and adhere to the recommended maximum pipe lengthsComply with the applicable regulations governing ventilation and cross-secshytions for room aeration vents

B33

MW-5000925-1

Room-ventilated version

Without down-draught diverterJoint flue gas discharge via the roof with guaranteed natural draft (at all times underpressure in the joint discharge duct)Flue gas discharge rinsed with air air from the installation area (special conshystruction)The IP rating of the boiler is lowered to IP20

C13C13X

AD-3001056-01

Airflue gas connection using concentric pipes to a horizontal terminal (so-called forced flue) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

5 Installation

30 Gas 120 ACE 7717202 - v03 - 24062019

Configuration Principle DescriptionC33C33X

AD-3001057-01

Airflue gas connection using concentric pipes to a vertical terminal (roof outshylet) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

C43C43X

MW-2000822-01

Airflue gas connection via concentric pipes to a common pipe supplying severshyal heating applicationsThe common pipe has a roof connection to a vertical terminal that draws in the air required for combustion and discharges the combustion productsUse of CE-certified system

C53

AD-3001058-02

Airflue gas connection via separate pipes lead to two separate terminals One draws in the air required for combustion and the other discharges the combusshytion productsThe outlets may be in different pressure zonesDo not install the air supply and discharge on opposing surfacesUse of CE-certified system

C63C63X

The installer is responsible for installing a CE-certified discharge system that complies with the manufacturers recommendations (temperature flow pressure etc)

The maximum pressure drop in the pipes ΔP must not exceed the values given in the table below The pipes must be certified for this type of use and for a temperature of more than 100 degC The terminal part of the flue gas pipe must be certified as complying with the EN 1856-1 StandardIf installing discharge and intake pipes not supplied by Remeha these must be certified for the intended type of use and their maximum pressure drop must be compliant

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 31

Configuration Principle DescriptionC83C83X

MW-2000823-01

Flue gas connection to a collective flue for sealed boilers The air supply is inshydividual via a terminal coming from outside the buildingA concentric pipe can be used to both supply the boiler with combustion air and connect to the collective flue gas discharge systemThe chimney or flue gas pipe must be suitable for such use and the system CE certified

C93C93X

AD-3001059-01

Airflue gas connection via concentric pipes in an existing chimney The air supshyply in the chimney may be installed via the existing channel or via tubing Flue gas discharge and air intake are via a vertical terminal at the top of the chimney

The air intake and discharge must be close enough to be in the same pressure zoneThe minimum cross-sections are shown in the table belowThe flue system must be suitable for the intended use and the system CE certishyfied

Tab21 Minimum dimensions of the duct or pipe C93 C93X

Version (D) Without air supply With air supplyRigid 80 mm Oslash 130 mm 130 x 130 mm Oslash 140 mm 130 x 130 mmRigid 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmRigid 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmFlexible 80 mm Oslash 130 mm 130 x 130 mm Oslash 145 mm 130 x 130 mmFlexible 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmFlexible 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmConcentric 80125 mm Oslash 145 mm 145 x 145 mm Oslash 145 mm 145 x 145 mmConcentric 100150 mm Oslash 170 mm 170 x 170 mm Oslash 170 mm 170 x 170 mmConcentric 150200 mm Oslash 270 mm 270 x 270 mm - -

ImportantThe duct must comply with the air density requirements of the local regulations

Important

Only original components are authorised for connection to the boiler and for the terminalThe clear section must comply with the standardThe chimney must be swept before installing the discharge flue

CautionEnsure that the flue gas discharge pipes are securely attached to the wall with suitable retaining flanges to prevent any damage and guarantee the tightness of every gasket in the circuit

CautionThe minimum gradient of the condensates discharge pipe from the boiler to the waste water discharge must be 1 cm per linear metre

Fig22 Minimum dimensions of the duct or pipe C93 C93X

AD-3000330-03

D

Oslash

D

5 Installation

32 Gas 120 ACE 7717202 - v03 - 24062019

572 Lengths of the airflue gas pipes

The maximum lengths (Lmax) given in the table are valid for pipes in which the horizontal sections do not exceed one metre in total For each additional metre of horizontal pipe a multiplication coefficient of 12 must be applied when calculating the total length L The total length L is calculated by adding the lengths of the straight airflue gas pipes and the equivalent lengths of the other componentsAlways ensure that L is less than Lmax

ImportantFor the list of flue gas system accessories and the equivalent lengths refer to the current price list

Tab22 Lengths of the airflue gas pipes in metresConfigurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 100 mm 26 24 19

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 110 mm 40 40 40

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 110 mm 295 24 175

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 80125 mm - - -

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 100150 mm 9 8 59

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 80125 mm - - -

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 100150 mm 115 10 94

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 80125 mm over 2x80 mm

- - -

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 100150 mm over 2x100 mm

23 175 Air 11Flue gases 5

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm110 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 110150 mm110 mm

16 132 10

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 33

Configurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 110150 mm110 mm

165 135 94

Tab23 PPS pipe reduction for each element used

Diameter 80 mmSingle

80125 mmConcentric

100 mmSingle

100150 mmConcentric

45deg elbow 12 m 10 m 11 m 10 m87deg elbow 19 m 15 m 20 m 37 mStraight inspection tube 03 m 06 m - 10 m87deg inspection elbow 19 m 20 m 48 m -Inspection T 42 m 27 m 56 m 25 mInspection tube for flexible pipe 03 m - 05 m -

573 Dimensions of flue gas outlet pipe

WarningThe pipes connected to the flue gas adapter must satisfy the following dimension requirements

d1 External dimensions of flue gas outlet pipe

Tab24 Dimensions of pipe d1 (min-max)80 mm 793 - 803 mm100 mm 993 - 1003 mm150 mm 149 - 151 mm

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipe

Tab25 Dimensions of pipe d1 (min-max) D1 (min-max)8080 mm 793 - 803 mm 793 - 803 mm100100 mm 993 - 1003 mm 993 - 1003 mm110110 mm 1093 - 1103 mm 1093 - 1103 mm150150 mm 149 - 151 mm 149 - 151 mm

Fig23 Dimensions of open connection

AD-3001094-01

oslashd1

Fig24 Dimensions of parallel connection

AD-3000963-01

oslashd1 oslashD1

5 Installation

34 Gas 120 ACE 7717202 - v03 - 24062019

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipeL1 Length difference between flue gas outlet pipe and air supply pipe

Tab26 Dimensions of pipe d1 (min-max) D1 (min-max) L1

(1) (min-max)80125 mm 793 - 803 mm 124 - 1255 mm 0 - 15 mm100150 mm 993 - 1003 mm 149 - 151 mm 0 - 15 mm

(1) Shorten the inner pipe if the length difference is too great

574 Connection to the flue gas pipe

At delivery the flue gas outletair supply is fixed inside the boiler

1 Using a long tool unlock and remove the boilers front door2 Remove the boiler outlet

3 Two options for connection to the flue gas pipe

Option Description3a Connection to a vertical flue gas pipe Position the flue gas

outletair supply directly at the boiler outlet3b Connection to a horizontal flue gas pipe Insert an outlet elshy

bow ( not supplied) before the flue gas outletair supply

ImportantLubricate the gaskets on the flue system during assembly

Fig25 Dimensions of concentric connection

AD-3000962-01

oslashd1

L1

oslashD1

Fig26

MW-2000867-02

1

2

1

Fig27

3a 3b

MW-2000868-01

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 35

Fastening the coaxial pipes Fasten the intake pipes with two galvanised Oslash 42 mm screws with a maximum length of 16 mm

CautionBefore fixing the screws make sure that at least 45 cm of pipe is inserted in the gasket of the other pipe

WarningGuarantee a minimum pipe slope towards the boiler of at least 5 cm per metre

Fig28 Fastening the coaxial pipes using screws

BO-0000030

16 mm

5 Installation

36 Gas 120 ACE 7717202 - v03 - 24062019

6 Operation

61 Settings

To configure the installation and use the boiler please refer to the control unit manual

6 Operation

7717202 - v03 - 24062019 Gas 120 ACE 37

7 Maintenance

71 General

We recommend having the boiler inspected and serviced at regular intervals

CautionDo not neglect to service the boiler Contact a qualified professional or take out a maintenance contract for the obligatory annual servicing of the boilerFailure to service the appliance voids the warranty

Danger of electric shockBefore service work is started the boiler has to be de-energised and secured from accidentally being switched back on

CautionHave an inspection carried out and the flues swept at least once a year or more depending on the regulations in force in your country

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

CautionAfter maintenance or repair work check the entire heating system to ensure that there are no leaks

CautionOnly genuine spare parts may be used

72 Specific maintenance operations

721 Cleaning the siphon

1 Remove the flue gas outlet discharge pipe

2 Remove the condensate discharge pipe 3 Remove the screw from the siphon

Fig29

1

MW-2000903-01

Fig30

2

3

MW-2000904-01

7 Maintenance

38 Gas 120 ACE 7717202 - v03 - 24062019

4 Pull the siphon downwards to disengage it and pivot it to release it

5 Flush the siphon 6 Drain the siphon

7 Fill the siphon with clean water up to the mark 8 Lubricate the siphon gasket9 Re-engage the siphon and refit the screw

10 Refit the two pipes

722 Checking the ionisation current

1 Check the ionisation current at full load and at low loadThe value is stable after 1 minute

2 Clean or replace the ionisationignition electrode if the value is lower than 4 microA

Fig31

4

90deg

MW-2000905-01

Fig32

MW-2000843-01

Fig33

MW-2000844-01

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 39

723 Replace the ionizationignition electrode

The ionizationignition electrode must be replaced if

The ionization current is lt 4 microAThe electrode is damaged or worn

1 Remove the plug of the electrode from the igniter

ImportantThe ignition cable is fixed to the electrode and therefore may not be removed

2 Remove the two screws3 Remove the entire component4 Fit the new ionizationignition electrode with a new seal5 Reassemble the unit in the reverse order to disassembly

724 Servicing the forced flue connection pipes

1 Open the inspection hatches or remove the pipes2 Check that the air supply and discharge pipes are not blocked

If necessary clean the discharge pipe3 Check the tightness of the flue gas system4 Replace the tightness gaskets and if necessary any sections of pipe

until tightness is perfect

725 Checking the burner and cleaning the heat exchanger

1 Remove the air inlet flue on the venturi2 Loosen the gland on the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

Fig34

AD-0000088-01

4

1

2

3

Fig35 Removing the fan

AD-3001178-01

1

3

4

2

5

7 Maintenance

40 Gas 120 ACE 7717202 - v03 - 24062019

6 Remove the front plate from the heat exchanger7 Carefully lift the front plate including the burner and fan away from

the heat exchanger

8 Use a vacuum cleaner fitted with a special endpiece (accessory) to clean the top part of the heat exchanger (combustion chamber)

9 Vacuum again without the top brush on the end piece10 Clean the lower section of the heat exchanger with the special

cleaning blade (accessory)11 Check (eg using a mirror) whether any visible contamination has

been left behind If it has remove it with the vacuum cleaner12 Check that the burner cover of the dismantled burner is free from

cracks andor damage If not replace the burnerServicing the burner is usually not necessary it is self-cleaning Use compressed air to carefully blow away any dust

13 Reassemble the unit in reverse order

CautionRemember to reconnect the fan plugCheck that the gasket is correctly positioned between the mixing elbow and the heat exchanger (the gasket must lie absolutely flat in the appropriate groove to ensure that no gas can leak)Tighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the front plate nuts with a torque wrench to the firmness of 10 Nm

14 Open the gas supply and switch the power supply to the boiler back on

Fig36 Removing the front plate fan and burner

AD-3001179-01

6

7

Fig37 Cleaning the heat exchanger

AD-3001180-01

10

8 9

12

11

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 41

726 Checking the non-return valve

1 Remove the air inlet pipe from the venturi2 Unscrew the gland of the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

6 Dismantle the fan7 Remove the fan together with the gas valve unit8 Inspect the non-return valve and replace it in the event of a defect or

damage or if the maintenance kit contains a non-return valve9 Reassemble in the reverse order

CautionRemember to reconnect the fan plugTighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the two fan nuts with a torque wrench to the firmness of 38 Nm

Fig38 Disconnecting the fan

AD-3001178-01

1

3

4

2

5

Fig39 Checking the non-return valve

AD-3001181-01

2x

68

7

9

7 Maintenance

42 Gas 120 ACE 7717202 - v03 - 24062019

8 Decommissioning

81 Decommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

To switch off the boiler temporarily or permanently proceed as follows

1 Switch the boiler off2 Cut the electrical power to the boiler3 Close the gas valve on the boiler4 Drain the central heating system or ensure frost protection5 Close the door of the boiler to prevent air circulating inside it6 Remove the pipe connecting the boiler to the chimney and close the

nozzle with a plug

82 Recommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

Should it prove necessary to carry out the recommissioning of the boiler proceed as follows

1 Re-establish electrical power to the boiler2 Fit and check the flue gas pipe3 Fill the siphon with water4 Fill the central heating system5 Open the boiler gas valve6 Start up the boiler

8 Decommissioning

7717202 - v03 - 24062019 Gas 120 ACE 43

9 Disposal and recyclingCautionOnly qualified professionals are permitted to remove and dispose of the boiler in accordance with local and national regulations

If you need to remove the boiler proceed as follows

1 Switch off the boiler2 Cut the power supply to the boiler3 Close the main gas valve4 Close the water mains5 Close the gas valve on the boiler6 Drain the installation7 Remove the airflue gas pipes8 Disconnect all pipes9 Dismantle the boiler

Fig40

MW-3000179-03

9 Disposal and recycling

44 Gas 120 ACE 7717202 - v03 - 24062019

10 Environmental

101 Energy savings

Energy-saving advice

Do not block ventilation outletsDo not cover the radiators Do not hang curtains in front of the radiatorsInstall reflective panels behind the radiators to prevent heat lossesInsulate the pipes in rooms that are not heated (cellars and lofts)Close the radiators in rooms not in useDo not run hot (or cold) water pointlesslyInstall an energy-saving shower head which can save up to 40 energyTake showers rather than baths A bath consumes twice as much water and energy

102 Room thermostat and settings

Various models of room thermostat are available The type of thermostat used and the parameter selected impact total energy consumption

A modulating regulator which may be combined with thermostatic valves is eco-friendly in terms of energy and offers an excellent level of comfort This combination allows you to set the temperature separately for each room However do not install thermostatic radiator valves in the room in which the room thermostat is locatedComplete opening and closing of the thermostatic radiator valves causes undesirable variations in temperature Therefore these must be openedclosed progressivelySet the room thermostat to a temperature of approximately 20degC to reduce heating costs and energy consumptionLower the thermostat setting to approximately 16degC at night or when you are not at home This reduces heating costs and energy consumptionLower the thermostat setting well before airing the roomsSet the water temperature to a lower level in summer than in winter (eg 60degC and 80degC respectively) when an ONOFF thermostatis usedWhen clock thermostats and programmable thermostats are to be set do not forget to take any holidays and days when no one is at home into account

10 Environmental

7717202 - v03 - 24062019 Gas 120 ACE 45

11 Warranty

111 General

We would like to thank you for buying one of our appliances and for your trust in our productIn order to ensure continued safe and efficient operation we recommend that the product is regularly inspected and maintainedYour installer and our service department can assist with this

112 Terms of warranty

The following provisions do not affect the application in favour of the buyer of the legal provisions with regard to hidden defects that are applicable in the buyers countryThis appliance comes with a warranty that covers all manufacturing faults the warranty period will commence on the date of purchase stated on the installers invoiceThe warranty period is stated in our price listAs a manufacturer we can by no means be held liable if the appliance is used incorrectly is poorly maintained or not maintained at all or is not installed correctly (it is your responsibility to ensure that installation is carried out by a qualified installer)In particular we cannot be held liable for material damage intangible losses or physical injury resulting from an installation that does not comply with

Legal or regulatory requirements or provisions laid down by the local authoritiesNational or local regulations and special provisions relating to the installationOur manuals and installation instructions in particular in terms of regular maintenance of the appliances

Our warranty is limited to the replacement or repair of the parts found to be defective by our technical services team excluding labour transfer and transport costsOur warranty does not cover replacement or repair costs for parts that may become defective due to normal wear incorrect usage the intervention of unqualified third parties inadequate or insufficient supervision or maintenance a mains supply that is not appropriate or the use of unsuitable or poor quality fuelSmaller parts such as motors pumps electrical valves etc are guaranteed only if these parts have never been dismantledThe rights established in European Directive 9944EEC implemented by legal decree No 24 of 2 February 2002 and published in Official Journal No 57 of 8 March 2002 remain in force

11 Warranty

46 Gas 120 ACE 7717202 - v03 - 24062019

12 Spare parts

121 General

If inspection or maintenance work bring to light the need to replace a component in the boilerProvide the reference number given in the spare parts list when ordering a spare part

CautionOnly genuine spare parts may be used

122 Spare parts lists

1221 Exchanger

Fig41

MW-6000743-01

811x

7

7

4

2

16

3

10

119

65

1

13

12

18

14

19

15

18

17

Tab27

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

1 7699615 Complete exchanger x 1 7699614 Complete exchanger x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 47

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

2 S101564 Exchanger front plate x x x3 S54731 Exchanger inspection hatch insulation x x x4 S57241 Exchanger inspection hatch gasket x x x5 S100052 M4x10 self-locking screw (x20) x x x6 S54754 FURQ65 burner x 6 S57477 FURQ85 burner x x7 7623837 Set of 10 k NTC sensors x x x8 S54755 M6 nut (x20) x x x9 7659755 M4x10 screw (x10) x x x10 S53489 Electrode gasket (x10) x x x11 7692359 Ignition electrode x x x12 7631936 Flue gas flow pipe diameter 100 mm x x x13 7624643 NTC 2x20 k flue gas sensor with gasket x x x14 7624619 Ignition transformer x x x15 S56987 ZP M6x16 screw (x10) x x x16 7616253 Valve with support x x x17 7680596 Exchanger bracket x 17 7673616 Exchanger bracket x x18 7701752 Gasket diameter 100 mm (x5) x x x19 7632708 Earth electric clip (x2) x x x

1222 Gas circuit

Fig42

MW-6000744-01

3

2

5

6

9

4

8

10

7

12

11

1

14

13

13

12 Spare parts

48 Gas 120 ACE 7717202 - v03 - 24062019

Tab28Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 S101543 Silencer x 1 S101520 Silencer x 1 S101578 Silencer x2 S54777 Venturi gasket (x5) x 2 S59215 Gas valve-venturi gasket (x5) x 2 S101593 Gaskets (kit) x3 S101726 Fan RG 1481200-3633 x x 3 S100036 Fan RG 148 1200-3633-010202 x4 S101596 Gas valve VK4115v1386 x 4 S101597 Gas valve VK4115vb1012 x 4 S101510 Gas valve GB-ND 057 XP x5 S54766 Venturi x 5 S57488 Venturi x 5 S101595 Venturi VMS 45900450-010 x6 S59215 Gas valve-venturi gasket (x5) x x 7 S57827 Gas valve unit flange x8 S57828 268x22x25 O-ring (x5) x9 S101631 Diaphragm x10 7616249 Flue gas sensor cap (5x) x x x11 S56155 238x177x2 gasket (x20) x x x12 95760050 C HC M4-12 88 ZN3 screw x x x13 S48512 M5-10 screw (x10) x x x14 S101590 Silencer retaining clip x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 49

1223 Hydraulic circuit

Fig43

MW-6000745-01

1

14

6

9

11

8

12

5

37

9

10

2

4

13

Tab29Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7680598 Complete flow pipe x 1 7670807 Complete flow pipe x x2 7672557 Complete return pipe x x x3 7674076 Complete gas pipe x 3 7680434 Complete gas pipe x 3 7670720 Complete gas pipe x4 7698560 HUBA G38 pressure gauge x x x5 94994712 PVC pipe diameter 16x12 x x x6 7699357 Water deflector diameter 100 mm x x x7 94902073 Drain valve 12 x x x8 94918138 Air vent x x x9 95013064 44x32x2 mm green gasket x x x10 95013060 24x17x2 mm green gasket x x 10 95013062 30x21x12 mm green gasket x11 7692329 Condensate hose x x x13 7706103 Assembled siphon height 160 mm x 13 7706038 Assembled siphon height 250 mm x x14 7103731 Condensate drain pan gasket x x x

12 Spare parts

50 Gas 120 ACE 7717202 - v03 - 24062019

1224 Boiler body

Fig44

MW-6000746-01

2

2

1

6

3

34

5

4

Tab30Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7686377 Assembled frame x 1 7686139 Assembled frame x x2 7679958 117x34 handle diameter 65 mm x x x3 7676037 Wheel x x x4 7688301 Frame lateral gasket x 4 7688008 Frame lateral gasket x x5 7688353 Front panel gasket x 5 7688007 Front panel gasket x x6 7693874 R4-05 front panel lock x x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 51

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

E toimistoestsystemsfi

Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 19: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

4 Description of the product

41 General description

Gas 120 ACE floor-standing condensing gas boilers have the following characteristics

Low polluting emissionsHigh-efficiency heatingElectronic control panelFlue gas discharge by a forced flue or chimney type connection with bi-flow option

The boilers are perfectly suited to cascade installation

42 Operating principle

421 Gasair setting

The casing fitted to the boiler is also used as an air box Air is drawn in by the fan and gas injected into the Venturi by the fan intake The fan speed is modulated according to the settings the heat demand and the actual temperatures measured by the temperature sensors The gas and air are mixed in the Venturi The gasair ratio command function accurately adjusts the quantities of gas and air required This provides optimum combustion over the entire output range The gasair mixture is sent to the burner located upstream of the heat exchanger

422 Settings and safety devices

ImportantThe settings and safety devices are only operational if the boiler is powered up

Tab16 Description of the safety devicesDevice DescriptionNTC flue gas sensor The control panel blocks the gas supply to the burner in the event of overheatingFlame detector by ionisation The boiler is put into safety lock-down in the event of gas shortage or incomplete cross-

lighting on the burnerHydraulic pressure switch When the pressure switch detects a pressure lower than 08 bar (008 MPa) a warning

message is displayed without stopping the circulating pumpPost-circulating pump After the burner stops depending on the room thermostat setting and if in heating

mode the circulating pump runs for a further 3 minutesFrost protection device When the flow temperature is lower than 5 degC the burner starts up and runs until the

flow temperature reaches 15 degC This device runs under the following conditions

The boiler is switched onThe gas supply is workingThe pressure in the system is higher than 05 bar (005 MPa)

Anti-blocking of the pump If there are no heating or domestic hot water requirements for 24 consecutive hours the pumps start up automatically and run for 10 seconds

Anticipatory start-up of the circulatshying pumps

In heating mode only the appliance can start up the circulating pumps before burner igshynition The duration and activation of anticipatory start-up depends on the installation reshyquirements and the operating temperatures The duration of anticipatory start-up of the circulating pumps therefore varies from a few seconds to several minutes

4 Description of the product

7717202 - v03 - 24062019 Gas 120 ACE 19

43 Main boiler components

1 Control unit2 Flow sensor3 Light4 Ignitionionization electrode5 Non-return valve6 Gas valve7 Heat exchanger (heating circuit)8 Return sensor9 Pressure gauge sensor

10 CU-GH-08 PCB housing11 Siphon12 Flue gas circuit13 Intake silencer14 Venturi15 Flue gas sensor16 Fan17 Automatic air vent18 Flue gas measuring point19 Combustion air measuring point20 Flue gas outletair supply

44 PCBs

441 Description of the CU-GH-08 PCB

This PCB controls the core boiler components sensors actuators and gas valveThis PCB is factory-fitted and fully cabled and does not require any operationThe sensors valves circulating pumps etc are connected at the control unit

45 Standard delivery

The Gas 120 ACE boiler comes in 2 packages including

Tab17 Package contentsPackage ContentPackage 1 A floor-standing gas boiler

A flue system outlet with a measuring point (stored in the boiler)An outdoor temperature sensorA data plateAn installation and service manual

Package 2 A control unitTwo control unit mounting bolts on the boilerA user manual

46 Accessories amp options

A detailed list of accessories and options can be found in our catalogue

Fig7

MW-2000670-02

16

7 13

12

11

10

19

18

20

17

14

15

6

5

2

9

4

3

1

8

4 Description of the product

20 Gas 120 ACE 7717202 - v03 - 24062019

5 Installation

51 Installation regulations

CautionInstallation of the boiler must be done by a qualified professional in accordance with prevailing local and national regulations

CautionA disconnection device must be fitted to the permanent pipes in accordance with the installation rules

CautionRespect the maximum water inlet pressure to ensure correct operation of the appliance referring to the Technical Specifications chapter

52 Choice of the location

Decide on the ideal position for installation bearing in mind any legal directives and the space required by the appliance

Install the boiler on a solid stable structure capable of bearing the weight of the appliance when full of water and fully equippedWhen choosing the position for installation of the boiler bear in mind the positions authorised for the combustion gas discharge outlets and the air intake ventDo not install the boiler near any heat sources

521 Data plate

The data plate is located on the back of the boilerThe data plate provides important information regarding the appliance

Serial numberModelGas categoryCN1CN2etc

Once installation is complete the second data plate supplied in the documentation bag can be affixed to a more visible part of the boilerIf the boiler is equipped with a hydraulic kit (low-loss header or plate heat exchanger) affix the data plate to the side of the boiler

522 Space required - Boiler ventilation

Decide on the ideal position for installation bearing in mind any legal directives and the space required by the appliance

Install the boiler on a solid stable structure capable of bearing the weight of the appliance when full of water and fully equippedWhen choosing the position for installation of the boiler bear in mind the positions authorised for the combustion gas discharge outlets and the air intake ventDo not install the boiler near any heat sources

Fig8

MW-6000735-01

Made in France0085

CN1 17

CN2 7

230 V 50 Hz

B23(P) - B33 - C13(X) - C33(X) - C43(X) - C53 - C63(X) - C83(X) - C93(X)

PMS= 4bar - 04MPa

Pn =

8060 degC

5030 degC

NOx class 6 (Nox lt 56 mgkWh)

Qn =Hi kW

4030 degC

189-1039

196-1070

212-1097

180W

0085CT009

Hs (G20) 217-1189

IP21Imax= 10A

Tmax= 90degC

FR

LT

IT

AT

CZ

PL

II2Esi3BP

II2H3BP

II2H3BP

II2H3BP

II2H3P

II2H3BP

II2H3BP

II2ELw3BP

G20-20mbar G25-25mbar G30G31-303750mbar

G20-20mbar G30G31 - 30mbar

G20-20mbar G30G31 - 303750 mbar

G20-20mbar G30G31 - 3037mbar

G20-20mbar G31 - 30mbar

G20-20mbar G30G31 - 50mbar

G20-20mbar G30G31-303750mbar

G20-20mbar G27-20mbar G3031-37mbar

kW

Art Nr SN A0000YYWW000

kW

kW

kW

kW

kW

ESGR PT

LU RO EE

YY-WW

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 21

Keep the boiler accessible at all timesPlace the boiler on a base to make it easier to clean the roomThe boiler can be located along a partition on one of its sides provided there is a 500 mm space on the opposite sideAllow enough space around the boiler to facilitate accessibility and maintenance The minimum recommended dimensions are shown in the illustrationMake sure there is a connection to the water drainage system close to the boiler to discharge any condensates

ImportantTo fit the boiler position the pallet with the package 25 m in front of the desired location for the installation This distance is required to allow the boiler to be removed from its pallet

Tab18Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 115

A (mm) 500 500 500B (mm) 1082 1304 1304

To allow the intake of combustion air sufficient ventilation must be provided in the boiler room the cross section and position of which must satisfy the regulations in force

Great Britain BS 5440 Part 1 and Part 2

For boilers with a nominal output of more than 70 kW Upper and lower air vents comshypulsory

BS 6644 and IGEMUP-10

Caution

Avoid any low points in the flue gas and condensate discharge circuit in order to prevent any accumulation of condensatesDo not block the air inlets in the room or the combustion product evacuation or condensation water flow pipes (even partially)

If the boiler is installed in closed premises respect the minimum dimensions given in the diagram below Also allow for openings to obviate the following hazards

Accumulation of gasOverheating of the premisesGreat Britain Minimum cross section of openings see BS 5440 Part 1 and Part 2 and BS 6644

523 Ventilation

To allow the intake of combustion air sufficient ventilation must be provided in the boiler room for which the cross section and position must satisfy the regulations in force in the country in which the boiler is installed

Great Britain BS 5440 Part 1 and Part 2

For boilers with a nominal output of more than 70 kW Upper and lower air vents comshypulsory

BS 6644 and IGEMUP-10

Fig9

MW-2000679-03

500

B

1100

AS1

S2

260

580

350

600

500

5 Installation

22 Gas 120 ACE 7717202 - v03 - 24062019

If the boiler is installed in closed premises respect the minimum dimensions given in the diagram below Also allow for openings to obviate the following hazards

Accumulation of gasOverheating of the premisesGreat Britain Minimum cross section of openings see BS 5440 Part 1 and Part 2 and BS 6644

524 Fitting the outdoor sensor

Plugs diameter 4 mmdrill diameter 6 mm

1 Choose a recommended location for the outdoor sensor2 Put the 2 plugs in place delivered with the sensor3 Secure the sensor using the screws provided (diameter 4 mm)4 Connect the cable to the outdoor temperature sensor

Recommended positions

Place the outside sensor in a position that covers the following characteristics

On a faccedilade of the area to be heated on the north if possibleHalf way up the wall of the area to be heatedUnder the influence of changes in the weatherProtected from direct sunlightEasy to access

Fig11

MW-8800N001-3

2

1

2

11

2

H

12 H (min 25 m)

12 H (min 25 m)

12 Z

H

Z

1 Optimum location2 Possible position

H Inhabited height controlled by the sensorZ Inhabited area controlled by the sensor

Positions to be avoided

Avoid placing the outside sensor in a position with the following characteristics

Masked by part of the building (balcony roof etc)Close to a disruptive heat source (sun chimney ventilation grid etc)

Fig10

MW-8800N003-6

23

4

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 23

Fig12

MW-3000014-2

53 Transport

Transport the boiler pallet with a manual or electric pallet truck

54 Unpacking and preparing the boiler

Caution

Wear gloves to handle the boilerTransport the boiler pallet with a manual or electric pallet truckUse carrying bars (not provided) to move the boiler

ImportantTo fit the boiler position the pallet with the package 25 m in front of the desired location for the installation This distance is required to allow the boiler to be removed from its pallet

1 Cut the packaging2 Remove the packaging from the boiler but leave the boiler on the

shipping pallet

ImportantThe documentation bag (user manual + accessories) is contained in the protective block

Fig13

MW-6000736-01

Manual

11

12

5 Installation

24 Gas 120 ACE 7717202 - v03 - 24062019

3 Using a long tool unlock and remove the boilers front door Disconnect the earth wire

4 Remove the mounting bolts from the unloading ramps and the boiler (4 bolts at the rear and 4 bolts at the front)

5 Pull out the unloading ramps and turn them over6 Align the ramps with the rear castor wheels on the boiler

Fig14

MW-6000761-01

3

3

Fig15

MW-6000737-01

4

4

Fig16

MW-6000738-01

5

5

6

6

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 25

7 Lock the ramps correctly onto the pallet8 Screw the unloading ramps onto the pallet9 Fold down the ends of the ramp so that they rest on the ground

10 Tilt the boiler backwards until it is resting on the castor wheels then remove it from the pallet

11 Recycle the pallet

Fig17

MW-6000770-01

9

9

8

7

Fig18

MW-6000739-02

600

350

11

10

550

5 Installation

26 Gas 120 ACE 7717202 - v03 - 24062019

12 Level the boiler using the adjustable feet(1) Factory setting 30 mm adjustment range 20 to 40 mm

CautionThe rear castor wheels must no longer be in contact with the ground

55 Hydraulic connections

551 Water treatment

In many cases the boiler and the heating system can be filled with mains water without treating the water

CautionDo not add any chemical products to the heating water without first consulting a water treatment specialist For example antifreeze water softeners products to increase or reduce the pH value chemical additives andor inhibitors These may cause faults in the boiler and damage the heat exchanger

Important

Flush the installation with at least 3 times the volume of water contained in the heating systemFlush the DHW circuit with at least 20 times its volume of water

The water in the installation must comply with following specifications

Tab19 Installation water specifications Initial commissioning Concentration (top up)Degree of acidity (untreated water) pH 65 - 85 65 - 85

Degree of acidity (treated washyter) pH 70 - 90 70 - 90

Conductivity at 25degC μScm le 500 le 500Chlorides mglitre le 50 le 50Other components mglitre lt 1 lt 1

Total water hardnessdegf 5 - 35 le 15degdH 28 - 200 le 85mmollitre(1) 05 - 35 lt 15

(1) Flow temperature less than 90degC mdash Maximum hardness 150 mmoll

Fig19

MW-6000773-01

(1)

12

12

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 27

ImportantIf water treatment proves necessary Remeha recommends the following manufacturers

CillitClimalifeFernoxPermoSentinel

552 Flushing new installations and installations less than 6 months old

Before filling the heating installation it is essential to remove any debris (copper caulking soldering flux) from the installation

1 Clean the installation with a powerful universal cleaner2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

553 Flushing an existing installation

Before filling the heating installation it is essential to remove any sludge deposits which have accumulated in the heating circuit over the years

1 Remove any sludge from the installation2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

554 Connecting the heating circuit

ImportantAbide by the information shown in the hydraulic diagrams

The pipes are not provided

Caution

The heating pipe must be mounted in accordance with the provisions applicableIf installing stop valves position the filldrain valve and the expansion vessel between the stop valves and the boilerAlways install a safety valve calibrated to a maximum of 4 bar on the heating circuit The safety valve can be connected to a venting pot The safety valve must not be used to drain the heating circuitIt is recommended to install a sludge collector on all installations

SeeIf fitting with a hydraulic kit (low-loss header or plate heat exchanger) refer to the kit manual

555 Connecting the condensate discharge pipe

Use a neutralisation station to achieve a pH value of more than 65 (in accordance with prevailing regulations)Discharge the condensates directly into the mains drainage system via a siphon In view of the acidity level (pH 25 to 3) only condensate discharge pipes made from compatible plastic should be used

5 Installation

28 Gas 120 ACE 7717202 - v03 - 24062019

The condensate discharge pipe is located at the rear of the boiler

Do not block the condensate discharge pipeTilt the discharge pipe by at least 30 mm per metre and make sure there are no low points that could cause the accumulation of water or deposits Maximum horizontal length 5 metresDo not drain condensation water into a roof gutterConnect the condensate discharge pipe in accordance with prevailing standardsIt is preferable to use the condensate neutralisers recommended by the manufacturer of the boiler

1 Connect a plastic hose to the condensate discharge outlet (DN 22)2 Insert the other end of the hose into a waste water discharge outlet

556 Filling the siphon

DangerIf operating with the siphon empty combustion products will escape into the premises in which the boiler is installed

1 Pour water into the flue gas pipe (central pipe) until it flows out of the condensate discharge pipe

56 Gas connection

Danger

Close the main gas valve before starting work on the gas pipesThe diameters of the pipes must be defined in accordance with the standards in force in your countryConnect the gas pipe in accordance with prevailing standards and regulationsEnsure that there is no dust in the gas pipe

The gas pipes are not providedIn old gas networks we recommend fitting a gas filter with a low pressure drop upstream of this point

1 Clean the gas supply pipe2 Remove the anti-dust plug located on the boilers gas inlet3 Mount a gas stop valve (not provided) on the boilers gas inlet4 Connect the gas inlet pipe to the gas stop valve

Fig20

MW-2000825-01

pH gt 65

Oslash32A

Fig21

MW-6000742-02

1

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 29

5 Close the gas supply valve before testing the pressure on the gas supply pipe to avoid damage caused by excessive pressure on the gas regulator Decompress before reopening the valve

561 Gas supply

Before mounting check that the gas meter has sufficient capacity (in m3h) To do this you should bear in mind the consumption of all appliances If the capacity of the gas meter is too low inform the gas supply companyThe boilers are preset to run on G20 gas (gas H) and can be adapted to run with the following gases

G31 (gas P)G3031 (gas BP)

ImportantTo use a different type of gas contact an approved assistance service

57 Air supplyflue gas outlet connections

571 Classification

The discharge and intake pipes must be certified for the appropriate configuration and must meet the requirements of the prevailing installation standards in the country

Tab20 Configurations and recommendations for the flue systemConfiguration Principle DescriptionB23B23P

AD-3001055-01

Connection to a chimney using a CE connection kit (single pipe in a flue comshybustion air taken from the boiler room)Follow the connection instructions and adhere to the recommended maximum pipe lengthsComply with the applicable regulations governing ventilation and cross-secshytions for room aeration vents

B33

MW-5000925-1

Room-ventilated version

Without down-draught diverterJoint flue gas discharge via the roof with guaranteed natural draft (at all times underpressure in the joint discharge duct)Flue gas discharge rinsed with air air from the installation area (special conshystruction)The IP rating of the boiler is lowered to IP20

C13C13X

AD-3001056-01

Airflue gas connection using concentric pipes to a horizontal terminal (so-called forced flue) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

5 Installation

30 Gas 120 ACE 7717202 - v03 - 24062019

Configuration Principle DescriptionC33C33X

AD-3001057-01

Airflue gas connection using concentric pipes to a vertical terminal (roof outshylet) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

C43C43X

MW-2000822-01

Airflue gas connection via concentric pipes to a common pipe supplying severshyal heating applicationsThe common pipe has a roof connection to a vertical terminal that draws in the air required for combustion and discharges the combustion productsUse of CE-certified system

C53

AD-3001058-02

Airflue gas connection via separate pipes lead to two separate terminals One draws in the air required for combustion and the other discharges the combusshytion productsThe outlets may be in different pressure zonesDo not install the air supply and discharge on opposing surfacesUse of CE-certified system

C63C63X

The installer is responsible for installing a CE-certified discharge system that complies with the manufacturers recommendations (temperature flow pressure etc)

The maximum pressure drop in the pipes ΔP must not exceed the values given in the table below The pipes must be certified for this type of use and for a temperature of more than 100 degC The terminal part of the flue gas pipe must be certified as complying with the EN 1856-1 StandardIf installing discharge and intake pipes not supplied by Remeha these must be certified for the intended type of use and their maximum pressure drop must be compliant

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 31

Configuration Principle DescriptionC83C83X

MW-2000823-01

Flue gas connection to a collective flue for sealed boilers The air supply is inshydividual via a terminal coming from outside the buildingA concentric pipe can be used to both supply the boiler with combustion air and connect to the collective flue gas discharge systemThe chimney or flue gas pipe must be suitable for such use and the system CE certified

C93C93X

AD-3001059-01

Airflue gas connection via concentric pipes in an existing chimney The air supshyply in the chimney may be installed via the existing channel or via tubing Flue gas discharge and air intake are via a vertical terminal at the top of the chimney

The air intake and discharge must be close enough to be in the same pressure zoneThe minimum cross-sections are shown in the table belowThe flue system must be suitable for the intended use and the system CE certishyfied

Tab21 Minimum dimensions of the duct or pipe C93 C93X

Version (D) Without air supply With air supplyRigid 80 mm Oslash 130 mm 130 x 130 mm Oslash 140 mm 130 x 130 mmRigid 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmRigid 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmFlexible 80 mm Oslash 130 mm 130 x 130 mm Oslash 145 mm 130 x 130 mmFlexible 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmFlexible 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmConcentric 80125 mm Oslash 145 mm 145 x 145 mm Oslash 145 mm 145 x 145 mmConcentric 100150 mm Oslash 170 mm 170 x 170 mm Oslash 170 mm 170 x 170 mmConcentric 150200 mm Oslash 270 mm 270 x 270 mm - -

ImportantThe duct must comply with the air density requirements of the local regulations

Important

Only original components are authorised for connection to the boiler and for the terminalThe clear section must comply with the standardThe chimney must be swept before installing the discharge flue

CautionEnsure that the flue gas discharge pipes are securely attached to the wall with suitable retaining flanges to prevent any damage and guarantee the tightness of every gasket in the circuit

CautionThe minimum gradient of the condensates discharge pipe from the boiler to the waste water discharge must be 1 cm per linear metre

Fig22 Minimum dimensions of the duct or pipe C93 C93X

AD-3000330-03

D

Oslash

D

5 Installation

32 Gas 120 ACE 7717202 - v03 - 24062019

572 Lengths of the airflue gas pipes

The maximum lengths (Lmax) given in the table are valid for pipes in which the horizontal sections do not exceed one metre in total For each additional metre of horizontal pipe a multiplication coefficient of 12 must be applied when calculating the total length L The total length L is calculated by adding the lengths of the straight airflue gas pipes and the equivalent lengths of the other componentsAlways ensure that L is less than Lmax

ImportantFor the list of flue gas system accessories and the equivalent lengths refer to the current price list

Tab22 Lengths of the airflue gas pipes in metresConfigurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 100 mm 26 24 19

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 110 mm 40 40 40

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 110 mm 295 24 175

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 80125 mm - - -

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 100150 mm 9 8 59

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 80125 mm - - -

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 100150 mm 115 10 94

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 80125 mm over 2x80 mm

- - -

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 100150 mm over 2x100 mm

23 175 Air 11Flue gases 5

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm110 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 110150 mm110 mm

16 132 10

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 33

Configurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 110150 mm110 mm

165 135 94

Tab23 PPS pipe reduction for each element used

Diameter 80 mmSingle

80125 mmConcentric

100 mmSingle

100150 mmConcentric

45deg elbow 12 m 10 m 11 m 10 m87deg elbow 19 m 15 m 20 m 37 mStraight inspection tube 03 m 06 m - 10 m87deg inspection elbow 19 m 20 m 48 m -Inspection T 42 m 27 m 56 m 25 mInspection tube for flexible pipe 03 m - 05 m -

573 Dimensions of flue gas outlet pipe

WarningThe pipes connected to the flue gas adapter must satisfy the following dimension requirements

d1 External dimensions of flue gas outlet pipe

Tab24 Dimensions of pipe d1 (min-max)80 mm 793 - 803 mm100 mm 993 - 1003 mm150 mm 149 - 151 mm

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipe

Tab25 Dimensions of pipe d1 (min-max) D1 (min-max)8080 mm 793 - 803 mm 793 - 803 mm100100 mm 993 - 1003 mm 993 - 1003 mm110110 mm 1093 - 1103 mm 1093 - 1103 mm150150 mm 149 - 151 mm 149 - 151 mm

Fig23 Dimensions of open connection

AD-3001094-01

oslashd1

Fig24 Dimensions of parallel connection

AD-3000963-01

oslashd1 oslashD1

5 Installation

34 Gas 120 ACE 7717202 - v03 - 24062019

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipeL1 Length difference between flue gas outlet pipe and air supply pipe

Tab26 Dimensions of pipe d1 (min-max) D1 (min-max) L1

(1) (min-max)80125 mm 793 - 803 mm 124 - 1255 mm 0 - 15 mm100150 mm 993 - 1003 mm 149 - 151 mm 0 - 15 mm

(1) Shorten the inner pipe if the length difference is too great

574 Connection to the flue gas pipe

At delivery the flue gas outletair supply is fixed inside the boiler

1 Using a long tool unlock and remove the boilers front door2 Remove the boiler outlet

3 Two options for connection to the flue gas pipe

Option Description3a Connection to a vertical flue gas pipe Position the flue gas

outletair supply directly at the boiler outlet3b Connection to a horizontal flue gas pipe Insert an outlet elshy

bow ( not supplied) before the flue gas outletair supply

ImportantLubricate the gaskets on the flue system during assembly

Fig25 Dimensions of concentric connection

AD-3000962-01

oslashd1

L1

oslashD1

Fig26

MW-2000867-02

1

2

1

Fig27

3a 3b

MW-2000868-01

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 35

Fastening the coaxial pipes Fasten the intake pipes with two galvanised Oslash 42 mm screws with a maximum length of 16 mm

CautionBefore fixing the screws make sure that at least 45 cm of pipe is inserted in the gasket of the other pipe

WarningGuarantee a minimum pipe slope towards the boiler of at least 5 cm per metre

Fig28 Fastening the coaxial pipes using screws

BO-0000030

16 mm

5 Installation

36 Gas 120 ACE 7717202 - v03 - 24062019

6 Operation

61 Settings

To configure the installation and use the boiler please refer to the control unit manual

6 Operation

7717202 - v03 - 24062019 Gas 120 ACE 37

7 Maintenance

71 General

We recommend having the boiler inspected and serviced at regular intervals

CautionDo not neglect to service the boiler Contact a qualified professional or take out a maintenance contract for the obligatory annual servicing of the boilerFailure to service the appliance voids the warranty

Danger of electric shockBefore service work is started the boiler has to be de-energised and secured from accidentally being switched back on

CautionHave an inspection carried out and the flues swept at least once a year or more depending on the regulations in force in your country

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

CautionAfter maintenance or repair work check the entire heating system to ensure that there are no leaks

CautionOnly genuine spare parts may be used

72 Specific maintenance operations

721 Cleaning the siphon

1 Remove the flue gas outlet discharge pipe

2 Remove the condensate discharge pipe 3 Remove the screw from the siphon

Fig29

1

MW-2000903-01

Fig30

2

3

MW-2000904-01

7 Maintenance

38 Gas 120 ACE 7717202 - v03 - 24062019

4 Pull the siphon downwards to disengage it and pivot it to release it

5 Flush the siphon 6 Drain the siphon

7 Fill the siphon with clean water up to the mark 8 Lubricate the siphon gasket9 Re-engage the siphon and refit the screw

10 Refit the two pipes

722 Checking the ionisation current

1 Check the ionisation current at full load and at low loadThe value is stable after 1 minute

2 Clean or replace the ionisationignition electrode if the value is lower than 4 microA

Fig31

4

90deg

MW-2000905-01

Fig32

MW-2000843-01

Fig33

MW-2000844-01

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 39

723 Replace the ionizationignition electrode

The ionizationignition electrode must be replaced if

The ionization current is lt 4 microAThe electrode is damaged or worn

1 Remove the plug of the electrode from the igniter

ImportantThe ignition cable is fixed to the electrode and therefore may not be removed

2 Remove the two screws3 Remove the entire component4 Fit the new ionizationignition electrode with a new seal5 Reassemble the unit in the reverse order to disassembly

724 Servicing the forced flue connection pipes

1 Open the inspection hatches or remove the pipes2 Check that the air supply and discharge pipes are not blocked

If necessary clean the discharge pipe3 Check the tightness of the flue gas system4 Replace the tightness gaskets and if necessary any sections of pipe

until tightness is perfect

725 Checking the burner and cleaning the heat exchanger

1 Remove the air inlet flue on the venturi2 Loosen the gland on the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

Fig34

AD-0000088-01

4

1

2

3

Fig35 Removing the fan

AD-3001178-01

1

3

4

2

5

7 Maintenance

40 Gas 120 ACE 7717202 - v03 - 24062019

6 Remove the front plate from the heat exchanger7 Carefully lift the front plate including the burner and fan away from

the heat exchanger

8 Use a vacuum cleaner fitted with a special endpiece (accessory) to clean the top part of the heat exchanger (combustion chamber)

9 Vacuum again without the top brush on the end piece10 Clean the lower section of the heat exchanger with the special

cleaning blade (accessory)11 Check (eg using a mirror) whether any visible contamination has

been left behind If it has remove it with the vacuum cleaner12 Check that the burner cover of the dismantled burner is free from

cracks andor damage If not replace the burnerServicing the burner is usually not necessary it is self-cleaning Use compressed air to carefully blow away any dust

13 Reassemble the unit in reverse order

CautionRemember to reconnect the fan plugCheck that the gasket is correctly positioned between the mixing elbow and the heat exchanger (the gasket must lie absolutely flat in the appropriate groove to ensure that no gas can leak)Tighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the front plate nuts with a torque wrench to the firmness of 10 Nm

14 Open the gas supply and switch the power supply to the boiler back on

Fig36 Removing the front plate fan and burner

AD-3001179-01

6

7

Fig37 Cleaning the heat exchanger

AD-3001180-01

10

8 9

12

11

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 41

726 Checking the non-return valve

1 Remove the air inlet pipe from the venturi2 Unscrew the gland of the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

6 Dismantle the fan7 Remove the fan together with the gas valve unit8 Inspect the non-return valve and replace it in the event of a defect or

damage or if the maintenance kit contains a non-return valve9 Reassemble in the reverse order

CautionRemember to reconnect the fan plugTighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the two fan nuts with a torque wrench to the firmness of 38 Nm

Fig38 Disconnecting the fan

AD-3001178-01

1

3

4

2

5

Fig39 Checking the non-return valve

AD-3001181-01

2x

68

7

9

7 Maintenance

42 Gas 120 ACE 7717202 - v03 - 24062019

8 Decommissioning

81 Decommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

To switch off the boiler temporarily or permanently proceed as follows

1 Switch the boiler off2 Cut the electrical power to the boiler3 Close the gas valve on the boiler4 Drain the central heating system or ensure frost protection5 Close the door of the boiler to prevent air circulating inside it6 Remove the pipe connecting the boiler to the chimney and close the

nozzle with a plug

82 Recommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

Should it prove necessary to carry out the recommissioning of the boiler proceed as follows

1 Re-establish electrical power to the boiler2 Fit and check the flue gas pipe3 Fill the siphon with water4 Fill the central heating system5 Open the boiler gas valve6 Start up the boiler

8 Decommissioning

7717202 - v03 - 24062019 Gas 120 ACE 43

9 Disposal and recyclingCautionOnly qualified professionals are permitted to remove and dispose of the boiler in accordance with local and national regulations

If you need to remove the boiler proceed as follows

1 Switch off the boiler2 Cut the power supply to the boiler3 Close the main gas valve4 Close the water mains5 Close the gas valve on the boiler6 Drain the installation7 Remove the airflue gas pipes8 Disconnect all pipes9 Dismantle the boiler

Fig40

MW-3000179-03

9 Disposal and recycling

44 Gas 120 ACE 7717202 - v03 - 24062019

10 Environmental

101 Energy savings

Energy-saving advice

Do not block ventilation outletsDo not cover the radiators Do not hang curtains in front of the radiatorsInstall reflective panels behind the radiators to prevent heat lossesInsulate the pipes in rooms that are not heated (cellars and lofts)Close the radiators in rooms not in useDo not run hot (or cold) water pointlesslyInstall an energy-saving shower head which can save up to 40 energyTake showers rather than baths A bath consumes twice as much water and energy

102 Room thermostat and settings

Various models of room thermostat are available The type of thermostat used and the parameter selected impact total energy consumption

A modulating regulator which may be combined with thermostatic valves is eco-friendly in terms of energy and offers an excellent level of comfort This combination allows you to set the temperature separately for each room However do not install thermostatic radiator valves in the room in which the room thermostat is locatedComplete opening and closing of the thermostatic radiator valves causes undesirable variations in temperature Therefore these must be openedclosed progressivelySet the room thermostat to a temperature of approximately 20degC to reduce heating costs and energy consumptionLower the thermostat setting to approximately 16degC at night or when you are not at home This reduces heating costs and energy consumptionLower the thermostat setting well before airing the roomsSet the water temperature to a lower level in summer than in winter (eg 60degC and 80degC respectively) when an ONOFF thermostatis usedWhen clock thermostats and programmable thermostats are to be set do not forget to take any holidays and days when no one is at home into account

10 Environmental

7717202 - v03 - 24062019 Gas 120 ACE 45

11 Warranty

111 General

We would like to thank you for buying one of our appliances and for your trust in our productIn order to ensure continued safe and efficient operation we recommend that the product is regularly inspected and maintainedYour installer and our service department can assist with this

112 Terms of warranty

The following provisions do not affect the application in favour of the buyer of the legal provisions with regard to hidden defects that are applicable in the buyers countryThis appliance comes with a warranty that covers all manufacturing faults the warranty period will commence on the date of purchase stated on the installers invoiceThe warranty period is stated in our price listAs a manufacturer we can by no means be held liable if the appliance is used incorrectly is poorly maintained or not maintained at all or is not installed correctly (it is your responsibility to ensure that installation is carried out by a qualified installer)In particular we cannot be held liable for material damage intangible losses or physical injury resulting from an installation that does not comply with

Legal or regulatory requirements or provisions laid down by the local authoritiesNational or local regulations and special provisions relating to the installationOur manuals and installation instructions in particular in terms of regular maintenance of the appliances

Our warranty is limited to the replacement or repair of the parts found to be defective by our technical services team excluding labour transfer and transport costsOur warranty does not cover replacement or repair costs for parts that may become defective due to normal wear incorrect usage the intervention of unqualified third parties inadequate or insufficient supervision or maintenance a mains supply that is not appropriate or the use of unsuitable or poor quality fuelSmaller parts such as motors pumps electrical valves etc are guaranteed only if these parts have never been dismantledThe rights established in European Directive 9944EEC implemented by legal decree No 24 of 2 February 2002 and published in Official Journal No 57 of 8 March 2002 remain in force

11 Warranty

46 Gas 120 ACE 7717202 - v03 - 24062019

12 Spare parts

121 General

If inspection or maintenance work bring to light the need to replace a component in the boilerProvide the reference number given in the spare parts list when ordering a spare part

CautionOnly genuine spare parts may be used

122 Spare parts lists

1221 Exchanger

Fig41

MW-6000743-01

811x

7

7

4

2

16

3

10

119

65

1

13

12

18

14

19

15

18

17

Tab27

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

1 7699615 Complete exchanger x 1 7699614 Complete exchanger x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 47

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

2 S101564 Exchanger front plate x x x3 S54731 Exchanger inspection hatch insulation x x x4 S57241 Exchanger inspection hatch gasket x x x5 S100052 M4x10 self-locking screw (x20) x x x6 S54754 FURQ65 burner x 6 S57477 FURQ85 burner x x7 7623837 Set of 10 k NTC sensors x x x8 S54755 M6 nut (x20) x x x9 7659755 M4x10 screw (x10) x x x10 S53489 Electrode gasket (x10) x x x11 7692359 Ignition electrode x x x12 7631936 Flue gas flow pipe diameter 100 mm x x x13 7624643 NTC 2x20 k flue gas sensor with gasket x x x14 7624619 Ignition transformer x x x15 S56987 ZP M6x16 screw (x10) x x x16 7616253 Valve with support x x x17 7680596 Exchanger bracket x 17 7673616 Exchanger bracket x x18 7701752 Gasket diameter 100 mm (x5) x x x19 7632708 Earth electric clip (x2) x x x

1222 Gas circuit

Fig42

MW-6000744-01

3

2

5

6

9

4

8

10

7

12

11

1

14

13

13

12 Spare parts

48 Gas 120 ACE 7717202 - v03 - 24062019

Tab28Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 S101543 Silencer x 1 S101520 Silencer x 1 S101578 Silencer x2 S54777 Venturi gasket (x5) x 2 S59215 Gas valve-venturi gasket (x5) x 2 S101593 Gaskets (kit) x3 S101726 Fan RG 1481200-3633 x x 3 S100036 Fan RG 148 1200-3633-010202 x4 S101596 Gas valve VK4115v1386 x 4 S101597 Gas valve VK4115vb1012 x 4 S101510 Gas valve GB-ND 057 XP x5 S54766 Venturi x 5 S57488 Venturi x 5 S101595 Venturi VMS 45900450-010 x6 S59215 Gas valve-venturi gasket (x5) x x 7 S57827 Gas valve unit flange x8 S57828 268x22x25 O-ring (x5) x9 S101631 Diaphragm x10 7616249 Flue gas sensor cap (5x) x x x11 S56155 238x177x2 gasket (x20) x x x12 95760050 C HC M4-12 88 ZN3 screw x x x13 S48512 M5-10 screw (x10) x x x14 S101590 Silencer retaining clip x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 49

1223 Hydraulic circuit

Fig43

MW-6000745-01

1

14

6

9

11

8

12

5

37

9

10

2

4

13

Tab29Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7680598 Complete flow pipe x 1 7670807 Complete flow pipe x x2 7672557 Complete return pipe x x x3 7674076 Complete gas pipe x 3 7680434 Complete gas pipe x 3 7670720 Complete gas pipe x4 7698560 HUBA G38 pressure gauge x x x5 94994712 PVC pipe diameter 16x12 x x x6 7699357 Water deflector diameter 100 mm x x x7 94902073 Drain valve 12 x x x8 94918138 Air vent x x x9 95013064 44x32x2 mm green gasket x x x10 95013060 24x17x2 mm green gasket x x 10 95013062 30x21x12 mm green gasket x11 7692329 Condensate hose x x x13 7706103 Assembled siphon height 160 mm x 13 7706038 Assembled siphon height 250 mm x x14 7103731 Condensate drain pan gasket x x x

12 Spare parts

50 Gas 120 ACE 7717202 - v03 - 24062019

1224 Boiler body

Fig44

MW-6000746-01

2

2

1

6

3

34

5

4

Tab30Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7686377 Assembled frame x 1 7686139 Assembled frame x x2 7679958 117x34 handle diameter 65 mm x x x3 7676037 Wheel x x x4 7688301 Frame lateral gasket x 4 7688008 Frame lateral gasket x x5 7688353 Front panel gasket x 5 7688007 Front panel gasket x x6 7693874 R4-05 front panel lock x x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 51

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

E toimistoestsystemsfi

Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 20: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

43 Main boiler components

1 Control unit2 Flow sensor3 Light4 Ignitionionization electrode5 Non-return valve6 Gas valve7 Heat exchanger (heating circuit)8 Return sensor9 Pressure gauge sensor

10 CU-GH-08 PCB housing11 Siphon12 Flue gas circuit13 Intake silencer14 Venturi15 Flue gas sensor16 Fan17 Automatic air vent18 Flue gas measuring point19 Combustion air measuring point20 Flue gas outletair supply

44 PCBs

441 Description of the CU-GH-08 PCB

This PCB controls the core boiler components sensors actuators and gas valveThis PCB is factory-fitted and fully cabled and does not require any operationThe sensors valves circulating pumps etc are connected at the control unit

45 Standard delivery

The Gas 120 ACE boiler comes in 2 packages including

Tab17 Package contentsPackage ContentPackage 1 A floor-standing gas boiler

A flue system outlet with a measuring point (stored in the boiler)An outdoor temperature sensorA data plateAn installation and service manual

Package 2 A control unitTwo control unit mounting bolts on the boilerA user manual

46 Accessories amp options

A detailed list of accessories and options can be found in our catalogue

Fig7

MW-2000670-02

16

7 13

12

11

10

19

18

20

17

14

15

6

5

2

9

4

3

1

8

4 Description of the product

20 Gas 120 ACE 7717202 - v03 - 24062019

5 Installation

51 Installation regulations

CautionInstallation of the boiler must be done by a qualified professional in accordance with prevailing local and national regulations

CautionA disconnection device must be fitted to the permanent pipes in accordance with the installation rules

CautionRespect the maximum water inlet pressure to ensure correct operation of the appliance referring to the Technical Specifications chapter

52 Choice of the location

Decide on the ideal position for installation bearing in mind any legal directives and the space required by the appliance

Install the boiler on a solid stable structure capable of bearing the weight of the appliance when full of water and fully equippedWhen choosing the position for installation of the boiler bear in mind the positions authorised for the combustion gas discharge outlets and the air intake ventDo not install the boiler near any heat sources

521 Data plate

The data plate is located on the back of the boilerThe data plate provides important information regarding the appliance

Serial numberModelGas categoryCN1CN2etc

Once installation is complete the second data plate supplied in the documentation bag can be affixed to a more visible part of the boilerIf the boiler is equipped with a hydraulic kit (low-loss header or plate heat exchanger) affix the data plate to the side of the boiler

522 Space required - Boiler ventilation

Decide on the ideal position for installation bearing in mind any legal directives and the space required by the appliance

Install the boiler on a solid stable structure capable of bearing the weight of the appliance when full of water and fully equippedWhen choosing the position for installation of the boiler bear in mind the positions authorised for the combustion gas discharge outlets and the air intake ventDo not install the boiler near any heat sources

Fig8

MW-6000735-01

Made in France0085

CN1 17

CN2 7

230 V 50 Hz

B23(P) - B33 - C13(X) - C33(X) - C43(X) - C53 - C63(X) - C83(X) - C93(X)

PMS= 4bar - 04MPa

Pn =

8060 degC

5030 degC

NOx class 6 (Nox lt 56 mgkWh)

Qn =Hi kW

4030 degC

189-1039

196-1070

212-1097

180W

0085CT009

Hs (G20) 217-1189

IP21Imax= 10A

Tmax= 90degC

FR

LT

IT

AT

CZ

PL

II2Esi3BP

II2H3BP

II2H3BP

II2H3BP

II2H3P

II2H3BP

II2H3BP

II2ELw3BP

G20-20mbar G25-25mbar G30G31-303750mbar

G20-20mbar G30G31 - 30mbar

G20-20mbar G30G31 - 303750 mbar

G20-20mbar G30G31 - 3037mbar

G20-20mbar G31 - 30mbar

G20-20mbar G30G31 - 50mbar

G20-20mbar G30G31-303750mbar

G20-20mbar G27-20mbar G3031-37mbar

kW

Art Nr SN A0000YYWW000

kW

kW

kW

kW

kW

ESGR PT

LU RO EE

YY-WW

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 21

Keep the boiler accessible at all timesPlace the boiler on a base to make it easier to clean the roomThe boiler can be located along a partition on one of its sides provided there is a 500 mm space on the opposite sideAllow enough space around the boiler to facilitate accessibility and maintenance The minimum recommended dimensions are shown in the illustrationMake sure there is a connection to the water drainage system close to the boiler to discharge any condensates

ImportantTo fit the boiler position the pallet with the package 25 m in front of the desired location for the installation This distance is required to allow the boiler to be removed from its pallet

Tab18Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 115

A (mm) 500 500 500B (mm) 1082 1304 1304

To allow the intake of combustion air sufficient ventilation must be provided in the boiler room the cross section and position of which must satisfy the regulations in force

Great Britain BS 5440 Part 1 and Part 2

For boilers with a nominal output of more than 70 kW Upper and lower air vents comshypulsory

BS 6644 and IGEMUP-10

Caution

Avoid any low points in the flue gas and condensate discharge circuit in order to prevent any accumulation of condensatesDo not block the air inlets in the room or the combustion product evacuation or condensation water flow pipes (even partially)

If the boiler is installed in closed premises respect the minimum dimensions given in the diagram below Also allow for openings to obviate the following hazards

Accumulation of gasOverheating of the premisesGreat Britain Minimum cross section of openings see BS 5440 Part 1 and Part 2 and BS 6644

523 Ventilation

To allow the intake of combustion air sufficient ventilation must be provided in the boiler room for which the cross section and position must satisfy the regulations in force in the country in which the boiler is installed

Great Britain BS 5440 Part 1 and Part 2

For boilers with a nominal output of more than 70 kW Upper and lower air vents comshypulsory

BS 6644 and IGEMUP-10

Fig9

MW-2000679-03

500

B

1100

AS1

S2

260

580

350

600

500

5 Installation

22 Gas 120 ACE 7717202 - v03 - 24062019

If the boiler is installed in closed premises respect the minimum dimensions given in the diagram below Also allow for openings to obviate the following hazards

Accumulation of gasOverheating of the premisesGreat Britain Minimum cross section of openings see BS 5440 Part 1 and Part 2 and BS 6644

524 Fitting the outdoor sensor

Plugs diameter 4 mmdrill diameter 6 mm

1 Choose a recommended location for the outdoor sensor2 Put the 2 plugs in place delivered with the sensor3 Secure the sensor using the screws provided (diameter 4 mm)4 Connect the cable to the outdoor temperature sensor

Recommended positions

Place the outside sensor in a position that covers the following characteristics

On a faccedilade of the area to be heated on the north if possibleHalf way up the wall of the area to be heatedUnder the influence of changes in the weatherProtected from direct sunlightEasy to access

Fig11

MW-8800N001-3

2

1

2

11

2

H

12 H (min 25 m)

12 H (min 25 m)

12 Z

H

Z

1 Optimum location2 Possible position

H Inhabited height controlled by the sensorZ Inhabited area controlled by the sensor

Positions to be avoided

Avoid placing the outside sensor in a position with the following characteristics

Masked by part of the building (balcony roof etc)Close to a disruptive heat source (sun chimney ventilation grid etc)

Fig10

MW-8800N003-6

23

4

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 23

Fig12

MW-3000014-2

53 Transport

Transport the boiler pallet with a manual or electric pallet truck

54 Unpacking and preparing the boiler

Caution

Wear gloves to handle the boilerTransport the boiler pallet with a manual or electric pallet truckUse carrying bars (not provided) to move the boiler

ImportantTo fit the boiler position the pallet with the package 25 m in front of the desired location for the installation This distance is required to allow the boiler to be removed from its pallet

1 Cut the packaging2 Remove the packaging from the boiler but leave the boiler on the

shipping pallet

ImportantThe documentation bag (user manual + accessories) is contained in the protective block

Fig13

MW-6000736-01

Manual

11

12

5 Installation

24 Gas 120 ACE 7717202 - v03 - 24062019

3 Using a long tool unlock and remove the boilers front door Disconnect the earth wire

4 Remove the mounting bolts from the unloading ramps and the boiler (4 bolts at the rear and 4 bolts at the front)

5 Pull out the unloading ramps and turn them over6 Align the ramps with the rear castor wheels on the boiler

Fig14

MW-6000761-01

3

3

Fig15

MW-6000737-01

4

4

Fig16

MW-6000738-01

5

5

6

6

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 25

7 Lock the ramps correctly onto the pallet8 Screw the unloading ramps onto the pallet9 Fold down the ends of the ramp so that they rest on the ground

10 Tilt the boiler backwards until it is resting on the castor wheels then remove it from the pallet

11 Recycle the pallet

Fig17

MW-6000770-01

9

9

8

7

Fig18

MW-6000739-02

600

350

11

10

550

5 Installation

26 Gas 120 ACE 7717202 - v03 - 24062019

12 Level the boiler using the adjustable feet(1) Factory setting 30 mm adjustment range 20 to 40 mm

CautionThe rear castor wheels must no longer be in contact with the ground

55 Hydraulic connections

551 Water treatment

In many cases the boiler and the heating system can be filled with mains water without treating the water

CautionDo not add any chemical products to the heating water without first consulting a water treatment specialist For example antifreeze water softeners products to increase or reduce the pH value chemical additives andor inhibitors These may cause faults in the boiler and damage the heat exchanger

Important

Flush the installation with at least 3 times the volume of water contained in the heating systemFlush the DHW circuit with at least 20 times its volume of water

The water in the installation must comply with following specifications

Tab19 Installation water specifications Initial commissioning Concentration (top up)Degree of acidity (untreated water) pH 65 - 85 65 - 85

Degree of acidity (treated washyter) pH 70 - 90 70 - 90

Conductivity at 25degC μScm le 500 le 500Chlorides mglitre le 50 le 50Other components mglitre lt 1 lt 1

Total water hardnessdegf 5 - 35 le 15degdH 28 - 200 le 85mmollitre(1) 05 - 35 lt 15

(1) Flow temperature less than 90degC mdash Maximum hardness 150 mmoll

Fig19

MW-6000773-01

(1)

12

12

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 27

ImportantIf water treatment proves necessary Remeha recommends the following manufacturers

CillitClimalifeFernoxPermoSentinel

552 Flushing new installations and installations less than 6 months old

Before filling the heating installation it is essential to remove any debris (copper caulking soldering flux) from the installation

1 Clean the installation with a powerful universal cleaner2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

553 Flushing an existing installation

Before filling the heating installation it is essential to remove any sludge deposits which have accumulated in the heating circuit over the years

1 Remove any sludge from the installation2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

554 Connecting the heating circuit

ImportantAbide by the information shown in the hydraulic diagrams

The pipes are not provided

Caution

The heating pipe must be mounted in accordance with the provisions applicableIf installing stop valves position the filldrain valve and the expansion vessel between the stop valves and the boilerAlways install a safety valve calibrated to a maximum of 4 bar on the heating circuit The safety valve can be connected to a venting pot The safety valve must not be used to drain the heating circuitIt is recommended to install a sludge collector on all installations

SeeIf fitting with a hydraulic kit (low-loss header or plate heat exchanger) refer to the kit manual

555 Connecting the condensate discharge pipe

Use a neutralisation station to achieve a pH value of more than 65 (in accordance with prevailing regulations)Discharge the condensates directly into the mains drainage system via a siphon In view of the acidity level (pH 25 to 3) only condensate discharge pipes made from compatible plastic should be used

5 Installation

28 Gas 120 ACE 7717202 - v03 - 24062019

The condensate discharge pipe is located at the rear of the boiler

Do not block the condensate discharge pipeTilt the discharge pipe by at least 30 mm per metre and make sure there are no low points that could cause the accumulation of water or deposits Maximum horizontal length 5 metresDo not drain condensation water into a roof gutterConnect the condensate discharge pipe in accordance with prevailing standardsIt is preferable to use the condensate neutralisers recommended by the manufacturer of the boiler

1 Connect a plastic hose to the condensate discharge outlet (DN 22)2 Insert the other end of the hose into a waste water discharge outlet

556 Filling the siphon

DangerIf operating with the siphon empty combustion products will escape into the premises in which the boiler is installed

1 Pour water into the flue gas pipe (central pipe) until it flows out of the condensate discharge pipe

56 Gas connection

Danger

Close the main gas valve before starting work on the gas pipesThe diameters of the pipes must be defined in accordance with the standards in force in your countryConnect the gas pipe in accordance with prevailing standards and regulationsEnsure that there is no dust in the gas pipe

The gas pipes are not providedIn old gas networks we recommend fitting a gas filter with a low pressure drop upstream of this point

1 Clean the gas supply pipe2 Remove the anti-dust plug located on the boilers gas inlet3 Mount a gas stop valve (not provided) on the boilers gas inlet4 Connect the gas inlet pipe to the gas stop valve

Fig20

MW-2000825-01

pH gt 65

Oslash32A

Fig21

MW-6000742-02

1

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 29

5 Close the gas supply valve before testing the pressure on the gas supply pipe to avoid damage caused by excessive pressure on the gas regulator Decompress before reopening the valve

561 Gas supply

Before mounting check that the gas meter has sufficient capacity (in m3h) To do this you should bear in mind the consumption of all appliances If the capacity of the gas meter is too low inform the gas supply companyThe boilers are preset to run on G20 gas (gas H) and can be adapted to run with the following gases

G31 (gas P)G3031 (gas BP)

ImportantTo use a different type of gas contact an approved assistance service

57 Air supplyflue gas outlet connections

571 Classification

The discharge and intake pipes must be certified for the appropriate configuration and must meet the requirements of the prevailing installation standards in the country

Tab20 Configurations and recommendations for the flue systemConfiguration Principle DescriptionB23B23P

AD-3001055-01

Connection to a chimney using a CE connection kit (single pipe in a flue comshybustion air taken from the boiler room)Follow the connection instructions and adhere to the recommended maximum pipe lengthsComply with the applicable regulations governing ventilation and cross-secshytions for room aeration vents

B33

MW-5000925-1

Room-ventilated version

Without down-draught diverterJoint flue gas discharge via the roof with guaranteed natural draft (at all times underpressure in the joint discharge duct)Flue gas discharge rinsed with air air from the installation area (special conshystruction)The IP rating of the boiler is lowered to IP20

C13C13X

AD-3001056-01

Airflue gas connection using concentric pipes to a horizontal terminal (so-called forced flue) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

5 Installation

30 Gas 120 ACE 7717202 - v03 - 24062019

Configuration Principle DescriptionC33C33X

AD-3001057-01

Airflue gas connection using concentric pipes to a vertical terminal (roof outshylet) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

C43C43X

MW-2000822-01

Airflue gas connection via concentric pipes to a common pipe supplying severshyal heating applicationsThe common pipe has a roof connection to a vertical terminal that draws in the air required for combustion and discharges the combustion productsUse of CE-certified system

C53

AD-3001058-02

Airflue gas connection via separate pipes lead to two separate terminals One draws in the air required for combustion and the other discharges the combusshytion productsThe outlets may be in different pressure zonesDo not install the air supply and discharge on opposing surfacesUse of CE-certified system

C63C63X

The installer is responsible for installing a CE-certified discharge system that complies with the manufacturers recommendations (temperature flow pressure etc)

The maximum pressure drop in the pipes ΔP must not exceed the values given in the table below The pipes must be certified for this type of use and for a temperature of more than 100 degC The terminal part of the flue gas pipe must be certified as complying with the EN 1856-1 StandardIf installing discharge and intake pipes not supplied by Remeha these must be certified for the intended type of use and their maximum pressure drop must be compliant

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 31

Configuration Principle DescriptionC83C83X

MW-2000823-01

Flue gas connection to a collective flue for sealed boilers The air supply is inshydividual via a terminal coming from outside the buildingA concentric pipe can be used to both supply the boiler with combustion air and connect to the collective flue gas discharge systemThe chimney or flue gas pipe must be suitable for such use and the system CE certified

C93C93X

AD-3001059-01

Airflue gas connection via concentric pipes in an existing chimney The air supshyply in the chimney may be installed via the existing channel or via tubing Flue gas discharge and air intake are via a vertical terminal at the top of the chimney

The air intake and discharge must be close enough to be in the same pressure zoneThe minimum cross-sections are shown in the table belowThe flue system must be suitable for the intended use and the system CE certishyfied

Tab21 Minimum dimensions of the duct or pipe C93 C93X

Version (D) Without air supply With air supplyRigid 80 mm Oslash 130 mm 130 x 130 mm Oslash 140 mm 130 x 130 mmRigid 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmRigid 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmFlexible 80 mm Oslash 130 mm 130 x 130 mm Oslash 145 mm 130 x 130 mmFlexible 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmFlexible 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmConcentric 80125 mm Oslash 145 mm 145 x 145 mm Oslash 145 mm 145 x 145 mmConcentric 100150 mm Oslash 170 mm 170 x 170 mm Oslash 170 mm 170 x 170 mmConcentric 150200 mm Oslash 270 mm 270 x 270 mm - -

ImportantThe duct must comply with the air density requirements of the local regulations

Important

Only original components are authorised for connection to the boiler and for the terminalThe clear section must comply with the standardThe chimney must be swept before installing the discharge flue

CautionEnsure that the flue gas discharge pipes are securely attached to the wall with suitable retaining flanges to prevent any damage and guarantee the tightness of every gasket in the circuit

CautionThe minimum gradient of the condensates discharge pipe from the boiler to the waste water discharge must be 1 cm per linear metre

Fig22 Minimum dimensions of the duct or pipe C93 C93X

AD-3000330-03

D

Oslash

D

5 Installation

32 Gas 120 ACE 7717202 - v03 - 24062019

572 Lengths of the airflue gas pipes

The maximum lengths (Lmax) given in the table are valid for pipes in which the horizontal sections do not exceed one metre in total For each additional metre of horizontal pipe a multiplication coefficient of 12 must be applied when calculating the total length L The total length L is calculated by adding the lengths of the straight airflue gas pipes and the equivalent lengths of the other componentsAlways ensure that L is less than Lmax

ImportantFor the list of flue gas system accessories and the equivalent lengths refer to the current price list

Tab22 Lengths of the airflue gas pipes in metresConfigurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 100 mm 26 24 19

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 110 mm 40 40 40

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 110 mm 295 24 175

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 80125 mm - - -

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 100150 mm 9 8 59

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 80125 mm - - -

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 100150 mm 115 10 94

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 80125 mm over 2x80 mm

- - -

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 100150 mm over 2x100 mm

23 175 Air 11Flue gases 5

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm110 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 110150 mm110 mm

16 132 10

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 33

Configurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 110150 mm110 mm

165 135 94

Tab23 PPS pipe reduction for each element used

Diameter 80 mmSingle

80125 mmConcentric

100 mmSingle

100150 mmConcentric

45deg elbow 12 m 10 m 11 m 10 m87deg elbow 19 m 15 m 20 m 37 mStraight inspection tube 03 m 06 m - 10 m87deg inspection elbow 19 m 20 m 48 m -Inspection T 42 m 27 m 56 m 25 mInspection tube for flexible pipe 03 m - 05 m -

573 Dimensions of flue gas outlet pipe

WarningThe pipes connected to the flue gas adapter must satisfy the following dimension requirements

d1 External dimensions of flue gas outlet pipe

Tab24 Dimensions of pipe d1 (min-max)80 mm 793 - 803 mm100 mm 993 - 1003 mm150 mm 149 - 151 mm

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipe

Tab25 Dimensions of pipe d1 (min-max) D1 (min-max)8080 mm 793 - 803 mm 793 - 803 mm100100 mm 993 - 1003 mm 993 - 1003 mm110110 mm 1093 - 1103 mm 1093 - 1103 mm150150 mm 149 - 151 mm 149 - 151 mm

Fig23 Dimensions of open connection

AD-3001094-01

oslashd1

Fig24 Dimensions of parallel connection

AD-3000963-01

oslashd1 oslashD1

5 Installation

34 Gas 120 ACE 7717202 - v03 - 24062019

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipeL1 Length difference between flue gas outlet pipe and air supply pipe

Tab26 Dimensions of pipe d1 (min-max) D1 (min-max) L1

(1) (min-max)80125 mm 793 - 803 mm 124 - 1255 mm 0 - 15 mm100150 mm 993 - 1003 mm 149 - 151 mm 0 - 15 mm

(1) Shorten the inner pipe if the length difference is too great

574 Connection to the flue gas pipe

At delivery the flue gas outletair supply is fixed inside the boiler

1 Using a long tool unlock and remove the boilers front door2 Remove the boiler outlet

3 Two options for connection to the flue gas pipe

Option Description3a Connection to a vertical flue gas pipe Position the flue gas

outletair supply directly at the boiler outlet3b Connection to a horizontal flue gas pipe Insert an outlet elshy

bow ( not supplied) before the flue gas outletair supply

ImportantLubricate the gaskets on the flue system during assembly

Fig25 Dimensions of concentric connection

AD-3000962-01

oslashd1

L1

oslashD1

Fig26

MW-2000867-02

1

2

1

Fig27

3a 3b

MW-2000868-01

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 35

Fastening the coaxial pipes Fasten the intake pipes with two galvanised Oslash 42 mm screws with a maximum length of 16 mm

CautionBefore fixing the screws make sure that at least 45 cm of pipe is inserted in the gasket of the other pipe

WarningGuarantee a minimum pipe slope towards the boiler of at least 5 cm per metre

Fig28 Fastening the coaxial pipes using screws

BO-0000030

16 mm

5 Installation

36 Gas 120 ACE 7717202 - v03 - 24062019

6 Operation

61 Settings

To configure the installation and use the boiler please refer to the control unit manual

6 Operation

7717202 - v03 - 24062019 Gas 120 ACE 37

7 Maintenance

71 General

We recommend having the boiler inspected and serviced at regular intervals

CautionDo not neglect to service the boiler Contact a qualified professional or take out a maintenance contract for the obligatory annual servicing of the boilerFailure to service the appliance voids the warranty

Danger of electric shockBefore service work is started the boiler has to be de-energised and secured from accidentally being switched back on

CautionHave an inspection carried out and the flues swept at least once a year or more depending on the regulations in force in your country

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

CautionAfter maintenance or repair work check the entire heating system to ensure that there are no leaks

CautionOnly genuine spare parts may be used

72 Specific maintenance operations

721 Cleaning the siphon

1 Remove the flue gas outlet discharge pipe

2 Remove the condensate discharge pipe 3 Remove the screw from the siphon

Fig29

1

MW-2000903-01

Fig30

2

3

MW-2000904-01

7 Maintenance

38 Gas 120 ACE 7717202 - v03 - 24062019

4 Pull the siphon downwards to disengage it and pivot it to release it

5 Flush the siphon 6 Drain the siphon

7 Fill the siphon with clean water up to the mark 8 Lubricate the siphon gasket9 Re-engage the siphon and refit the screw

10 Refit the two pipes

722 Checking the ionisation current

1 Check the ionisation current at full load and at low loadThe value is stable after 1 minute

2 Clean or replace the ionisationignition electrode if the value is lower than 4 microA

Fig31

4

90deg

MW-2000905-01

Fig32

MW-2000843-01

Fig33

MW-2000844-01

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 39

723 Replace the ionizationignition electrode

The ionizationignition electrode must be replaced if

The ionization current is lt 4 microAThe electrode is damaged or worn

1 Remove the plug of the electrode from the igniter

ImportantThe ignition cable is fixed to the electrode and therefore may not be removed

2 Remove the two screws3 Remove the entire component4 Fit the new ionizationignition electrode with a new seal5 Reassemble the unit in the reverse order to disassembly

724 Servicing the forced flue connection pipes

1 Open the inspection hatches or remove the pipes2 Check that the air supply and discharge pipes are not blocked

If necessary clean the discharge pipe3 Check the tightness of the flue gas system4 Replace the tightness gaskets and if necessary any sections of pipe

until tightness is perfect

725 Checking the burner and cleaning the heat exchanger

1 Remove the air inlet flue on the venturi2 Loosen the gland on the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

Fig34

AD-0000088-01

4

1

2

3

Fig35 Removing the fan

AD-3001178-01

1

3

4

2

5

7 Maintenance

40 Gas 120 ACE 7717202 - v03 - 24062019

6 Remove the front plate from the heat exchanger7 Carefully lift the front plate including the burner and fan away from

the heat exchanger

8 Use a vacuum cleaner fitted with a special endpiece (accessory) to clean the top part of the heat exchanger (combustion chamber)

9 Vacuum again without the top brush on the end piece10 Clean the lower section of the heat exchanger with the special

cleaning blade (accessory)11 Check (eg using a mirror) whether any visible contamination has

been left behind If it has remove it with the vacuum cleaner12 Check that the burner cover of the dismantled burner is free from

cracks andor damage If not replace the burnerServicing the burner is usually not necessary it is self-cleaning Use compressed air to carefully blow away any dust

13 Reassemble the unit in reverse order

CautionRemember to reconnect the fan plugCheck that the gasket is correctly positioned between the mixing elbow and the heat exchanger (the gasket must lie absolutely flat in the appropriate groove to ensure that no gas can leak)Tighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the front plate nuts with a torque wrench to the firmness of 10 Nm

14 Open the gas supply and switch the power supply to the boiler back on

Fig36 Removing the front plate fan and burner

AD-3001179-01

6

7

Fig37 Cleaning the heat exchanger

AD-3001180-01

10

8 9

12

11

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 41

726 Checking the non-return valve

1 Remove the air inlet pipe from the venturi2 Unscrew the gland of the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

6 Dismantle the fan7 Remove the fan together with the gas valve unit8 Inspect the non-return valve and replace it in the event of a defect or

damage or if the maintenance kit contains a non-return valve9 Reassemble in the reverse order

CautionRemember to reconnect the fan plugTighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the two fan nuts with a torque wrench to the firmness of 38 Nm

Fig38 Disconnecting the fan

AD-3001178-01

1

3

4

2

5

Fig39 Checking the non-return valve

AD-3001181-01

2x

68

7

9

7 Maintenance

42 Gas 120 ACE 7717202 - v03 - 24062019

8 Decommissioning

81 Decommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

To switch off the boiler temporarily or permanently proceed as follows

1 Switch the boiler off2 Cut the electrical power to the boiler3 Close the gas valve on the boiler4 Drain the central heating system or ensure frost protection5 Close the door of the boiler to prevent air circulating inside it6 Remove the pipe connecting the boiler to the chimney and close the

nozzle with a plug

82 Recommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

Should it prove necessary to carry out the recommissioning of the boiler proceed as follows

1 Re-establish electrical power to the boiler2 Fit and check the flue gas pipe3 Fill the siphon with water4 Fill the central heating system5 Open the boiler gas valve6 Start up the boiler

8 Decommissioning

7717202 - v03 - 24062019 Gas 120 ACE 43

9 Disposal and recyclingCautionOnly qualified professionals are permitted to remove and dispose of the boiler in accordance with local and national regulations

If you need to remove the boiler proceed as follows

1 Switch off the boiler2 Cut the power supply to the boiler3 Close the main gas valve4 Close the water mains5 Close the gas valve on the boiler6 Drain the installation7 Remove the airflue gas pipes8 Disconnect all pipes9 Dismantle the boiler

Fig40

MW-3000179-03

9 Disposal and recycling

44 Gas 120 ACE 7717202 - v03 - 24062019

10 Environmental

101 Energy savings

Energy-saving advice

Do not block ventilation outletsDo not cover the radiators Do not hang curtains in front of the radiatorsInstall reflective panels behind the radiators to prevent heat lossesInsulate the pipes in rooms that are not heated (cellars and lofts)Close the radiators in rooms not in useDo not run hot (or cold) water pointlesslyInstall an energy-saving shower head which can save up to 40 energyTake showers rather than baths A bath consumes twice as much water and energy

102 Room thermostat and settings

Various models of room thermostat are available The type of thermostat used and the parameter selected impact total energy consumption

A modulating regulator which may be combined with thermostatic valves is eco-friendly in terms of energy and offers an excellent level of comfort This combination allows you to set the temperature separately for each room However do not install thermostatic radiator valves in the room in which the room thermostat is locatedComplete opening and closing of the thermostatic radiator valves causes undesirable variations in temperature Therefore these must be openedclosed progressivelySet the room thermostat to a temperature of approximately 20degC to reduce heating costs and energy consumptionLower the thermostat setting to approximately 16degC at night or when you are not at home This reduces heating costs and energy consumptionLower the thermostat setting well before airing the roomsSet the water temperature to a lower level in summer than in winter (eg 60degC and 80degC respectively) when an ONOFF thermostatis usedWhen clock thermostats and programmable thermostats are to be set do not forget to take any holidays and days when no one is at home into account

10 Environmental

7717202 - v03 - 24062019 Gas 120 ACE 45

11 Warranty

111 General

We would like to thank you for buying one of our appliances and for your trust in our productIn order to ensure continued safe and efficient operation we recommend that the product is regularly inspected and maintainedYour installer and our service department can assist with this

112 Terms of warranty

The following provisions do not affect the application in favour of the buyer of the legal provisions with regard to hidden defects that are applicable in the buyers countryThis appliance comes with a warranty that covers all manufacturing faults the warranty period will commence on the date of purchase stated on the installers invoiceThe warranty period is stated in our price listAs a manufacturer we can by no means be held liable if the appliance is used incorrectly is poorly maintained or not maintained at all or is not installed correctly (it is your responsibility to ensure that installation is carried out by a qualified installer)In particular we cannot be held liable for material damage intangible losses or physical injury resulting from an installation that does not comply with

Legal or regulatory requirements or provisions laid down by the local authoritiesNational or local regulations and special provisions relating to the installationOur manuals and installation instructions in particular in terms of regular maintenance of the appliances

Our warranty is limited to the replacement or repair of the parts found to be defective by our technical services team excluding labour transfer and transport costsOur warranty does not cover replacement or repair costs for parts that may become defective due to normal wear incorrect usage the intervention of unqualified third parties inadequate or insufficient supervision or maintenance a mains supply that is not appropriate or the use of unsuitable or poor quality fuelSmaller parts such as motors pumps electrical valves etc are guaranteed only if these parts have never been dismantledThe rights established in European Directive 9944EEC implemented by legal decree No 24 of 2 February 2002 and published in Official Journal No 57 of 8 March 2002 remain in force

11 Warranty

46 Gas 120 ACE 7717202 - v03 - 24062019

12 Spare parts

121 General

If inspection or maintenance work bring to light the need to replace a component in the boilerProvide the reference number given in the spare parts list when ordering a spare part

CautionOnly genuine spare parts may be used

122 Spare parts lists

1221 Exchanger

Fig41

MW-6000743-01

811x

7

7

4

2

16

3

10

119

65

1

13

12

18

14

19

15

18

17

Tab27

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

1 7699615 Complete exchanger x 1 7699614 Complete exchanger x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 47

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

2 S101564 Exchanger front plate x x x3 S54731 Exchanger inspection hatch insulation x x x4 S57241 Exchanger inspection hatch gasket x x x5 S100052 M4x10 self-locking screw (x20) x x x6 S54754 FURQ65 burner x 6 S57477 FURQ85 burner x x7 7623837 Set of 10 k NTC sensors x x x8 S54755 M6 nut (x20) x x x9 7659755 M4x10 screw (x10) x x x10 S53489 Electrode gasket (x10) x x x11 7692359 Ignition electrode x x x12 7631936 Flue gas flow pipe diameter 100 mm x x x13 7624643 NTC 2x20 k flue gas sensor with gasket x x x14 7624619 Ignition transformer x x x15 S56987 ZP M6x16 screw (x10) x x x16 7616253 Valve with support x x x17 7680596 Exchanger bracket x 17 7673616 Exchanger bracket x x18 7701752 Gasket diameter 100 mm (x5) x x x19 7632708 Earth electric clip (x2) x x x

1222 Gas circuit

Fig42

MW-6000744-01

3

2

5

6

9

4

8

10

7

12

11

1

14

13

13

12 Spare parts

48 Gas 120 ACE 7717202 - v03 - 24062019

Tab28Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 S101543 Silencer x 1 S101520 Silencer x 1 S101578 Silencer x2 S54777 Venturi gasket (x5) x 2 S59215 Gas valve-venturi gasket (x5) x 2 S101593 Gaskets (kit) x3 S101726 Fan RG 1481200-3633 x x 3 S100036 Fan RG 148 1200-3633-010202 x4 S101596 Gas valve VK4115v1386 x 4 S101597 Gas valve VK4115vb1012 x 4 S101510 Gas valve GB-ND 057 XP x5 S54766 Venturi x 5 S57488 Venturi x 5 S101595 Venturi VMS 45900450-010 x6 S59215 Gas valve-venturi gasket (x5) x x 7 S57827 Gas valve unit flange x8 S57828 268x22x25 O-ring (x5) x9 S101631 Diaphragm x10 7616249 Flue gas sensor cap (5x) x x x11 S56155 238x177x2 gasket (x20) x x x12 95760050 C HC M4-12 88 ZN3 screw x x x13 S48512 M5-10 screw (x10) x x x14 S101590 Silencer retaining clip x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 49

1223 Hydraulic circuit

Fig43

MW-6000745-01

1

14

6

9

11

8

12

5

37

9

10

2

4

13

Tab29Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7680598 Complete flow pipe x 1 7670807 Complete flow pipe x x2 7672557 Complete return pipe x x x3 7674076 Complete gas pipe x 3 7680434 Complete gas pipe x 3 7670720 Complete gas pipe x4 7698560 HUBA G38 pressure gauge x x x5 94994712 PVC pipe diameter 16x12 x x x6 7699357 Water deflector diameter 100 mm x x x7 94902073 Drain valve 12 x x x8 94918138 Air vent x x x9 95013064 44x32x2 mm green gasket x x x10 95013060 24x17x2 mm green gasket x x 10 95013062 30x21x12 mm green gasket x11 7692329 Condensate hose x x x13 7706103 Assembled siphon height 160 mm x 13 7706038 Assembled siphon height 250 mm x x14 7103731 Condensate drain pan gasket x x x

12 Spare parts

50 Gas 120 ACE 7717202 - v03 - 24062019

1224 Boiler body

Fig44

MW-6000746-01

2

2

1

6

3

34

5

4

Tab30Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7686377 Assembled frame x 1 7686139 Assembled frame x x2 7679958 117x34 handle diameter 65 mm x x x3 7676037 Wheel x x x4 7688301 Frame lateral gasket x 4 7688008 Frame lateral gasket x x5 7688353 Front panel gasket x 5 7688007 Front panel gasket x x6 7693874 R4-05 front panel lock x x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 51

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

E toimistoestsystemsfi

Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 21: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

5 Installation

51 Installation regulations

CautionInstallation of the boiler must be done by a qualified professional in accordance with prevailing local and national regulations

CautionA disconnection device must be fitted to the permanent pipes in accordance with the installation rules

CautionRespect the maximum water inlet pressure to ensure correct operation of the appliance referring to the Technical Specifications chapter

52 Choice of the location

Decide on the ideal position for installation bearing in mind any legal directives and the space required by the appliance

Install the boiler on a solid stable structure capable of bearing the weight of the appliance when full of water and fully equippedWhen choosing the position for installation of the boiler bear in mind the positions authorised for the combustion gas discharge outlets and the air intake ventDo not install the boiler near any heat sources

521 Data plate

The data plate is located on the back of the boilerThe data plate provides important information regarding the appliance

Serial numberModelGas categoryCN1CN2etc

Once installation is complete the second data plate supplied in the documentation bag can be affixed to a more visible part of the boilerIf the boiler is equipped with a hydraulic kit (low-loss header or plate heat exchanger) affix the data plate to the side of the boiler

522 Space required - Boiler ventilation

Decide on the ideal position for installation bearing in mind any legal directives and the space required by the appliance

Install the boiler on a solid stable structure capable of bearing the weight of the appliance when full of water and fully equippedWhen choosing the position for installation of the boiler bear in mind the positions authorised for the combustion gas discharge outlets and the air intake ventDo not install the boiler near any heat sources

Fig8

MW-6000735-01

Made in France0085

CN1 17

CN2 7

230 V 50 Hz

B23(P) - B33 - C13(X) - C33(X) - C43(X) - C53 - C63(X) - C83(X) - C93(X)

PMS= 4bar - 04MPa

Pn =

8060 degC

5030 degC

NOx class 6 (Nox lt 56 mgkWh)

Qn =Hi kW

4030 degC

189-1039

196-1070

212-1097

180W

0085CT009

Hs (G20) 217-1189

IP21Imax= 10A

Tmax= 90degC

FR

LT

IT

AT

CZ

PL

II2Esi3BP

II2H3BP

II2H3BP

II2H3BP

II2H3P

II2H3BP

II2H3BP

II2ELw3BP

G20-20mbar G25-25mbar G30G31-303750mbar

G20-20mbar G30G31 - 30mbar

G20-20mbar G30G31 - 303750 mbar

G20-20mbar G30G31 - 3037mbar

G20-20mbar G31 - 30mbar

G20-20mbar G30G31 - 50mbar

G20-20mbar G30G31-303750mbar

G20-20mbar G27-20mbar G3031-37mbar

kW

Art Nr SN A0000YYWW000

kW

kW

kW

kW

kW

ESGR PT

LU RO EE

YY-WW

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 21

Keep the boiler accessible at all timesPlace the boiler on a base to make it easier to clean the roomThe boiler can be located along a partition on one of its sides provided there is a 500 mm space on the opposite sideAllow enough space around the boiler to facilitate accessibility and maintenance The minimum recommended dimensions are shown in the illustrationMake sure there is a connection to the water drainage system close to the boiler to discharge any condensates

ImportantTo fit the boiler position the pallet with the package 25 m in front of the desired location for the installation This distance is required to allow the boiler to be removed from its pallet

Tab18Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 115

A (mm) 500 500 500B (mm) 1082 1304 1304

To allow the intake of combustion air sufficient ventilation must be provided in the boiler room the cross section and position of which must satisfy the regulations in force

Great Britain BS 5440 Part 1 and Part 2

For boilers with a nominal output of more than 70 kW Upper and lower air vents comshypulsory

BS 6644 and IGEMUP-10

Caution

Avoid any low points in the flue gas and condensate discharge circuit in order to prevent any accumulation of condensatesDo not block the air inlets in the room or the combustion product evacuation or condensation water flow pipes (even partially)

If the boiler is installed in closed premises respect the minimum dimensions given in the diagram below Also allow for openings to obviate the following hazards

Accumulation of gasOverheating of the premisesGreat Britain Minimum cross section of openings see BS 5440 Part 1 and Part 2 and BS 6644

523 Ventilation

To allow the intake of combustion air sufficient ventilation must be provided in the boiler room for which the cross section and position must satisfy the regulations in force in the country in which the boiler is installed

Great Britain BS 5440 Part 1 and Part 2

For boilers with a nominal output of more than 70 kW Upper and lower air vents comshypulsory

BS 6644 and IGEMUP-10

Fig9

MW-2000679-03

500

B

1100

AS1

S2

260

580

350

600

500

5 Installation

22 Gas 120 ACE 7717202 - v03 - 24062019

If the boiler is installed in closed premises respect the minimum dimensions given in the diagram below Also allow for openings to obviate the following hazards

Accumulation of gasOverheating of the premisesGreat Britain Minimum cross section of openings see BS 5440 Part 1 and Part 2 and BS 6644

524 Fitting the outdoor sensor

Plugs diameter 4 mmdrill diameter 6 mm

1 Choose a recommended location for the outdoor sensor2 Put the 2 plugs in place delivered with the sensor3 Secure the sensor using the screws provided (diameter 4 mm)4 Connect the cable to the outdoor temperature sensor

Recommended positions

Place the outside sensor in a position that covers the following characteristics

On a faccedilade of the area to be heated on the north if possibleHalf way up the wall of the area to be heatedUnder the influence of changes in the weatherProtected from direct sunlightEasy to access

Fig11

MW-8800N001-3

2

1

2

11

2

H

12 H (min 25 m)

12 H (min 25 m)

12 Z

H

Z

1 Optimum location2 Possible position

H Inhabited height controlled by the sensorZ Inhabited area controlled by the sensor

Positions to be avoided

Avoid placing the outside sensor in a position with the following characteristics

Masked by part of the building (balcony roof etc)Close to a disruptive heat source (sun chimney ventilation grid etc)

Fig10

MW-8800N003-6

23

4

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 23

Fig12

MW-3000014-2

53 Transport

Transport the boiler pallet with a manual or electric pallet truck

54 Unpacking and preparing the boiler

Caution

Wear gloves to handle the boilerTransport the boiler pallet with a manual or electric pallet truckUse carrying bars (not provided) to move the boiler

ImportantTo fit the boiler position the pallet with the package 25 m in front of the desired location for the installation This distance is required to allow the boiler to be removed from its pallet

1 Cut the packaging2 Remove the packaging from the boiler but leave the boiler on the

shipping pallet

ImportantThe documentation bag (user manual + accessories) is contained in the protective block

Fig13

MW-6000736-01

Manual

11

12

5 Installation

24 Gas 120 ACE 7717202 - v03 - 24062019

3 Using a long tool unlock and remove the boilers front door Disconnect the earth wire

4 Remove the mounting bolts from the unloading ramps and the boiler (4 bolts at the rear and 4 bolts at the front)

5 Pull out the unloading ramps and turn them over6 Align the ramps with the rear castor wheels on the boiler

Fig14

MW-6000761-01

3

3

Fig15

MW-6000737-01

4

4

Fig16

MW-6000738-01

5

5

6

6

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 25

7 Lock the ramps correctly onto the pallet8 Screw the unloading ramps onto the pallet9 Fold down the ends of the ramp so that they rest on the ground

10 Tilt the boiler backwards until it is resting on the castor wheels then remove it from the pallet

11 Recycle the pallet

Fig17

MW-6000770-01

9

9

8

7

Fig18

MW-6000739-02

600

350

11

10

550

5 Installation

26 Gas 120 ACE 7717202 - v03 - 24062019

12 Level the boiler using the adjustable feet(1) Factory setting 30 mm adjustment range 20 to 40 mm

CautionThe rear castor wheels must no longer be in contact with the ground

55 Hydraulic connections

551 Water treatment

In many cases the boiler and the heating system can be filled with mains water without treating the water

CautionDo not add any chemical products to the heating water without first consulting a water treatment specialist For example antifreeze water softeners products to increase or reduce the pH value chemical additives andor inhibitors These may cause faults in the boiler and damage the heat exchanger

Important

Flush the installation with at least 3 times the volume of water contained in the heating systemFlush the DHW circuit with at least 20 times its volume of water

The water in the installation must comply with following specifications

Tab19 Installation water specifications Initial commissioning Concentration (top up)Degree of acidity (untreated water) pH 65 - 85 65 - 85

Degree of acidity (treated washyter) pH 70 - 90 70 - 90

Conductivity at 25degC μScm le 500 le 500Chlorides mglitre le 50 le 50Other components mglitre lt 1 lt 1

Total water hardnessdegf 5 - 35 le 15degdH 28 - 200 le 85mmollitre(1) 05 - 35 lt 15

(1) Flow temperature less than 90degC mdash Maximum hardness 150 mmoll

Fig19

MW-6000773-01

(1)

12

12

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 27

ImportantIf water treatment proves necessary Remeha recommends the following manufacturers

CillitClimalifeFernoxPermoSentinel

552 Flushing new installations and installations less than 6 months old

Before filling the heating installation it is essential to remove any debris (copper caulking soldering flux) from the installation

1 Clean the installation with a powerful universal cleaner2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

553 Flushing an existing installation

Before filling the heating installation it is essential to remove any sludge deposits which have accumulated in the heating circuit over the years

1 Remove any sludge from the installation2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

554 Connecting the heating circuit

ImportantAbide by the information shown in the hydraulic diagrams

The pipes are not provided

Caution

The heating pipe must be mounted in accordance with the provisions applicableIf installing stop valves position the filldrain valve and the expansion vessel between the stop valves and the boilerAlways install a safety valve calibrated to a maximum of 4 bar on the heating circuit The safety valve can be connected to a venting pot The safety valve must not be used to drain the heating circuitIt is recommended to install a sludge collector on all installations

SeeIf fitting with a hydraulic kit (low-loss header or plate heat exchanger) refer to the kit manual

555 Connecting the condensate discharge pipe

Use a neutralisation station to achieve a pH value of more than 65 (in accordance with prevailing regulations)Discharge the condensates directly into the mains drainage system via a siphon In view of the acidity level (pH 25 to 3) only condensate discharge pipes made from compatible plastic should be used

5 Installation

28 Gas 120 ACE 7717202 - v03 - 24062019

The condensate discharge pipe is located at the rear of the boiler

Do not block the condensate discharge pipeTilt the discharge pipe by at least 30 mm per metre and make sure there are no low points that could cause the accumulation of water or deposits Maximum horizontal length 5 metresDo not drain condensation water into a roof gutterConnect the condensate discharge pipe in accordance with prevailing standardsIt is preferable to use the condensate neutralisers recommended by the manufacturer of the boiler

1 Connect a plastic hose to the condensate discharge outlet (DN 22)2 Insert the other end of the hose into a waste water discharge outlet

556 Filling the siphon

DangerIf operating with the siphon empty combustion products will escape into the premises in which the boiler is installed

1 Pour water into the flue gas pipe (central pipe) until it flows out of the condensate discharge pipe

56 Gas connection

Danger

Close the main gas valve before starting work on the gas pipesThe diameters of the pipes must be defined in accordance with the standards in force in your countryConnect the gas pipe in accordance with prevailing standards and regulationsEnsure that there is no dust in the gas pipe

The gas pipes are not providedIn old gas networks we recommend fitting a gas filter with a low pressure drop upstream of this point

1 Clean the gas supply pipe2 Remove the anti-dust plug located on the boilers gas inlet3 Mount a gas stop valve (not provided) on the boilers gas inlet4 Connect the gas inlet pipe to the gas stop valve

Fig20

MW-2000825-01

pH gt 65

Oslash32A

Fig21

MW-6000742-02

1

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 29

5 Close the gas supply valve before testing the pressure on the gas supply pipe to avoid damage caused by excessive pressure on the gas regulator Decompress before reopening the valve

561 Gas supply

Before mounting check that the gas meter has sufficient capacity (in m3h) To do this you should bear in mind the consumption of all appliances If the capacity of the gas meter is too low inform the gas supply companyThe boilers are preset to run on G20 gas (gas H) and can be adapted to run with the following gases

G31 (gas P)G3031 (gas BP)

ImportantTo use a different type of gas contact an approved assistance service

57 Air supplyflue gas outlet connections

571 Classification

The discharge and intake pipes must be certified for the appropriate configuration and must meet the requirements of the prevailing installation standards in the country

Tab20 Configurations and recommendations for the flue systemConfiguration Principle DescriptionB23B23P

AD-3001055-01

Connection to a chimney using a CE connection kit (single pipe in a flue comshybustion air taken from the boiler room)Follow the connection instructions and adhere to the recommended maximum pipe lengthsComply with the applicable regulations governing ventilation and cross-secshytions for room aeration vents

B33

MW-5000925-1

Room-ventilated version

Without down-draught diverterJoint flue gas discharge via the roof with guaranteed natural draft (at all times underpressure in the joint discharge duct)Flue gas discharge rinsed with air air from the installation area (special conshystruction)The IP rating of the boiler is lowered to IP20

C13C13X

AD-3001056-01

Airflue gas connection using concentric pipes to a horizontal terminal (so-called forced flue) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

5 Installation

30 Gas 120 ACE 7717202 - v03 - 24062019

Configuration Principle DescriptionC33C33X

AD-3001057-01

Airflue gas connection using concentric pipes to a vertical terminal (roof outshylet) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

C43C43X

MW-2000822-01

Airflue gas connection via concentric pipes to a common pipe supplying severshyal heating applicationsThe common pipe has a roof connection to a vertical terminal that draws in the air required for combustion and discharges the combustion productsUse of CE-certified system

C53

AD-3001058-02

Airflue gas connection via separate pipes lead to two separate terminals One draws in the air required for combustion and the other discharges the combusshytion productsThe outlets may be in different pressure zonesDo not install the air supply and discharge on opposing surfacesUse of CE-certified system

C63C63X

The installer is responsible for installing a CE-certified discharge system that complies with the manufacturers recommendations (temperature flow pressure etc)

The maximum pressure drop in the pipes ΔP must not exceed the values given in the table below The pipes must be certified for this type of use and for a temperature of more than 100 degC The terminal part of the flue gas pipe must be certified as complying with the EN 1856-1 StandardIf installing discharge and intake pipes not supplied by Remeha these must be certified for the intended type of use and their maximum pressure drop must be compliant

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 31

Configuration Principle DescriptionC83C83X

MW-2000823-01

Flue gas connection to a collective flue for sealed boilers The air supply is inshydividual via a terminal coming from outside the buildingA concentric pipe can be used to both supply the boiler with combustion air and connect to the collective flue gas discharge systemThe chimney or flue gas pipe must be suitable for such use and the system CE certified

C93C93X

AD-3001059-01

Airflue gas connection via concentric pipes in an existing chimney The air supshyply in the chimney may be installed via the existing channel or via tubing Flue gas discharge and air intake are via a vertical terminal at the top of the chimney

The air intake and discharge must be close enough to be in the same pressure zoneThe minimum cross-sections are shown in the table belowThe flue system must be suitable for the intended use and the system CE certishyfied

Tab21 Minimum dimensions of the duct or pipe C93 C93X

Version (D) Without air supply With air supplyRigid 80 mm Oslash 130 mm 130 x 130 mm Oslash 140 mm 130 x 130 mmRigid 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmRigid 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmFlexible 80 mm Oslash 130 mm 130 x 130 mm Oslash 145 mm 130 x 130 mmFlexible 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmFlexible 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmConcentric 80125 mm Oslash 145 mm 145 x 145 mm Oslash 145 mm 145 x 145 mmConcentric 100150 mm Oslash 170 mm 170 x 170 mm Oslash 170 mm 170 x 170 mmConcentric 150200 mm Oslash 270 mm 270 x 270 mm - -

ImportantThe duct must comply with the air density requirements of the local regulations

Important

Only original components are authorised for connection to the boiler and for the terminalThe clear section must comply with the standardThe chimney must be swept before installing the discharge flue

CautionEnsure that the flue gas discharge pipes are securely attached to the wall with suitable retaining flanges to prevent any damage and guarantee the tightness of every gasket in the circuit

CautionThe minimum gradient of the condensates discharge pipe from the boiler to the waste water discharge must be 1 cm per linear metre

Fig22 Minimum dimensions of the duct or pipe C93 C93X

AD-3000330-03

D

Oslash

D

5 Installation

32 Gas 120 ACE 7717202 - v03 - 24062019

572 Lengths of the airflue gas pipes

The maximum lengths (Lmax) given in the table are valid for pipes in which the horizontal sections do not exceed one metre in total For each additional metre of horizontal pipe a multiplication coefficient of 12 must be applied when calculating the total length L The total length L is calculated by adding the lengths of the straight airflue gas pipes and the equivalent lengths of the other componentsAlways ensure that L is less than Lmax

ImportantFor the list of flue gas system accessories and the equivalent lengths refer to the current price list

Tab22 Lengths of the airflue gas pipes in metresConfigurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 100 mm 26 24 19

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 110 mm 40 40 40

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 110 mm 295 24 175

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 80125 mm - - -

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 100150 mm 9 8 59

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 80125 mm - - -

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 100150 mm 115 10 94

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 80125 mm over 2x80 mm

- - -

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 100150 mm over 2x100 mm

23 175 Air 11Flue gases 5

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm110 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 110150 mm110 mm

16 132 10

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 33

Configurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 110150 mm110 mm

165 135 94

Tab23 PPS pipe reduction for each element used

Diameter 80 mmSingle

80125 mmConcentric

100 mmSingle

100150 mmConcentric

45deg elbow 12 m 10 m 11 m 10 m87deg elbow 19 m 15 m 20 m 37 mStraight inspection tube 03 m 06 m - 10 m87deg inspection elbow 19 m 20 m 48 m -Inspection T 42 m 27 m 56 m 25 mInspection tube for flexible pipe 03 m - 05 m -

573 Dimensions of flue gas outlet pipe

WarningThe pipes connected to the flue gas adapter must satisfy the following dimension requirements

d1 External dimensions of flue gas outlet pipe

Tab24 Dimensions of pipe d1 (min-max)80 mm 793 - 803 mm100 mm 993 - 1003 mm150 mm 149 - 151 mm

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipe

Tab25 Dimensions of pipe d1 (min-max) D1 (min-max)8080 mm 793 - 803 mm 793 - 803 mm100100 mm 993 - 1003 mm 993 - 1003 mm110110 mm 1093 - 1103 mm 1093 - 1103 mm150150 mm 149 - 151 mm 149 - 151 mm

Fig23 Dimensions of open connection

AD-3001094-01

oslashd1

Fig24 Dimensions of parallel connection

AD-3000963-01

oslashd1 oslashD1

5 Installation

34 Gas 120 ACE 7717202 - v03 - 24062019

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipeL1 Length difference between flue gas outlet pipe and air supply pipe

Tab26 Dimensions of pipe d1 (min-max) D1 (min-max) L1

(1) (min-max)80125 mm 793 - 803 mm 124 - 1255 mm 0 - 15 mm100150 mm 993 - 1003 mm 149 - 151 mm 0 - 15 mm

(1) Shorten the inner pipe if the length difference is too great

574 Connection to the flue gas pipe

At delivery the flue gas outletair supply is fixed inside the boiler

1 Using a long tool unlock and remove the boilers front door2 Remove the boiler outlet

3 Two options for connection to the flue gas pipe

Option Description3a Connection to a vertical flue gas pipe Position the flue gas

outletair supply directly at the boiler outlet3b Connection to a horizontal flue gas pipe Insert an outlet elshy

bow ( not supplied) before the flue gas outletair supply

ImportantLubricate the gaskets on the flue system during assembly

Fig25 Dimensions of concentric connection

AD-3000962-01

oslashd1

L1

oslashD1

Fig26

MW-2000867-02

1

2

1

Fig27

3a 3b

MW-2000868-01

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 35

Fastening the coaxial pipes Fasten the intake pipes with two galvanised Oslash 42 mm screws with a maximum length of 16 mm

CautionBefore fixing the screws make sure that at least 45 cm of pipe is inserted in the gasket of the other pipe

WarningGuarantee a minimum pipe slope towards the boiler of at least 5 cm per metre

Fig28 Fastening the coaxial pipes using screws

BO-0000030

16 mm

5 Installation

36 Gas 120 ACE 7717202 - v03 - 24062019

6 Operation

61 Settings

To configure the installation and use the boiler please refer to the control unit manual

6 Operation

7717202 - v03 - 24062019 Gas 120 ACE 37

7 Maintenance

71 General

We recommend having the boiler inspected and serviced at regular intervals

CautionDo not neglect to service the boiler Contact a qualified professional or take out a maintenance contract for the obligatory annual servicing of the boilerFailure to service the appliance voids the warranty

Danger of electric shockBefore service work is started the boiler has to be de-energised and secured from accidentally being switched back on

CautionHave an inspection carried out and the flues swept at least once a year or more depending on the regulations in force in your country

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

CautionAfter maintenance or repair work check the entire heating system to ensure that there are no leaks

CautionOnly genuine spare parts may be used

72 Specific maintenance operations

721 Cleaning the siphon

1 Remove the flue gas outlet discharge pipe

2 Remove the condensate discharge pipe 3 Remove the screw from the siphon

Fig29

1

MW-2000903-01

Fig30

2

3

MW-2000904-01

7 Maintenance

38 Gas 120 ACE 7717202 - v03 - 24062019

4 Pull the siphon downwards to disengage it and pivot it to release it

5 Flush the siphon 6 Drain the siphon

7 Fill the siphon with clean water up to the mark 8 Lubricate the siphon gasket9 Re-engage the siphon and refit the screw

10 Refit the two pipes

722 Checking the ionisation current

1 Check the ionisation current at full load and at low loadThe value is stable after 1 minute

2 Clean or replace the ionisationignition electrode if the value is lower than 4 microA

Fig31

4

90deg

MW-2000905-01

Fig32

MW-2000843-01

Fig33

MW-2000844-01

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 39

723 Replace the ionizationignition electrode

The ionizationignition electrode must be replaced if

The ionization current is lt 4 microAThe electrode is damaged or worn

1 Remove the plug of the electrode from the igniter

ImportantThe ignition cable is fixed to the electrode and therefore may not be removed

2 Remove the two screws3 Remove the entire component4 Fit the new ionizationignition electrode with a new seal5 Reassemble the unit in the reverse order to disassembly

724 Servicing the forced flue connection pipes

1 Open the inspection hatches or remove the pipes2 Check that the air supply and discharge pipes are not blocked

If necessary clean the discharge pipe3 Check the tightness of the flue gas system4 Replace the tightness gaskets and if necessary any sections of pipe

until tightness is perfect

725 Checking the burner and cleaning the heat exchanger

1 Remove the air inlet flue on the venturi2 Loosen the gland on the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

Fig34

AD-0000088-01

4

1

2

3

Fig35 Removing the fan

AD-3001178-01

1

3

4

2

5

7 Maintenance

40 Gas 120 ACE 7717202 - v03 - 24062019

6 Remove the front plate from the heat exchanger7 Carefully lift the front plate including the burner and fan away from

the heat exchanger

8 Use a vacuum cleaner fitted with a special endpiece (accessory) to clean the top part of the heat exchanger (combustion chamber)

9 Vacuum again without the top brush on the end piece10 Clean the lower section of the heat exchanger with the special

cleaning blade (accessory)11 Check (eg using a mirror) whether any visible contamination has

been left behind If it has remove it with the vacuum cleaner12 Check that the burner cover of the dismantled burner is free from

cracks andor damage If not replace the burnerServicing the burner is usually not necessary it is self-cleaning Use compressed air to carefully blow away any dust

13 Reassemble the unit in reverse order

CautionRemember to reconnect the fan plugCheck that the gasket is correctly positioned between the mixing elbow and the heat exchanger (the gasket must lie absolutely flat in the appropriate groove to ensure that no gas can leak)Tighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the front plate nuts with a torque wrench to the firmness of 10 Nm

14 Open the gas supply and switch the power supply to the boiler back on

Fig36 Removing the front plate fan and burner

AD-3001179-01

6

7

Fig37 Cleaning the heat exchanger

AD-3001180-01

10

8 9

12

11

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 41

726 Checking the non-return valve

1 Remove the air inlet pipe from the venturi2 Unscrew the gland of the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

6 Dismantle the fan7 Remove the fan together with the gas valve unit8 Inspect the non-return valve and replace it in the event of a defect or

damage or if the maintenance kit contains a non-return valve9 Reassemble in the reverse order

CautionRemember to reconnect the fan plugTighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the two fan nuts with a torque wrench to the firmness of 38 Nm

Fig38 Disconnecting the fan

AD-3001178-01

1

3

4

2

5

Fig39 Checking the non-return valve

AD-3001181-01

2x

68

7

9

7 Maintenance

42 Gas 120 ACE 7717202 - v03 - 24062019

8 Decommissioning

81 Decommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

To switch off the boiler temporarily or permanently proceed as follows

1 Switch the boiler off2 Cut the electrical power to the boiler3 Close the gas valve on the boiler4 Drain the central heating system or ensure frost protection5 Close the door of the boiler to prevent air circulating inside it6 Remove the pipe connecting the boiler to the chimney and close the

nozzle with a plug

82 Recommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

Should it prove necessary to carry out the recommissioning of the boiler proceed as follows

1 Re-establish electrical power to the boiler2 Fit and check the flue gas pipe3 Fill the siphon with water4 Fill the central heating system5 Open the boiler gas valve6 Start up the boiler

8 Decommissioning

7717202 - v03 - 24062019 Gas 120 ACE 43

9 Disposal and recyclingCautionOnly qualified professionals are permitted to remove and dispose of the boiler in accordance with local and national regulations

If you need to remove the boiler proceed as follows

1 Switch off the boiler2 Cut the power supply to the boiler3 Close the main gas valve4 Close the water mains5 Close the gas valve on the boiler6 Drain the installation7 Remove the airflue gas pipes8 Disconnect all pipes9 Dismantle the boiler

Fig40

MW-3000179-03

9 Disposal and recycling

44 Gas 120 ACE 7717202 - v03 - 24062019

10 Environmental

101 Energy savings

Energy-saving advice

Do not block ventilation outletsDo not cover the radiators Do not hang curtains in front of the radiatorsInstall reflective panels behind the radiators to prevent heat lossesInsulate the pipes in rooms that are not heated (cellars and lofts)Close the radiators in rooms not in useDo not run hot (or cold) water pointlesslyInstall an energy-saving shower head which can save up to 40 energyTake showers rather than baths A bath consumes twice as much water and energy

102 Room thermostat and settings

Various models of room thermostat are available The type of thermostat used and the parameter selected impact total energy consumption

A modulating regulator which may be combined with thermostatic valves is eco-friendly in terms of energy and offers an excellent level of comfort This combination allows you to set the temperature separately for each room However do not install thermostatic radiator valves in the room in which the room thermostat is locatedComplete opening and closing of the thermostatic radiator valves causes undesirable variations in temperature Therefore these must be openedclosed progressivelySet the room thermostat to a temperature of approximately 20degC to reduce heating costs and energy consumptionLower the thermostat setting to approximately 16degC at night or when you are not at home This reduces heating costs and energy consumptionLower the thermostat setting well before airing the roomsSet the water temperature to a lower level in summer than in winter (eg 60degC and 80degC respectively) when an ONOFF thermostatis usedWhen clock thermostats and programmable thermostats are to be set do not forget to take any holidays and days when no one is at home into account

10 Environmental

7717202 - v03 - 24062019 Gas 120 ACE 45

11 Warranty

111 General

We would like to thank you for buying one of our appliances and for your trust in our productIn order to ensure continued safe and efficient operation we recommend that the product is regularly inspected and maintainedYour installer and our service department can assist with this

112 Terms of warranty

The following provisions do not affect the application in favour of the buyer of the legal provisions with regard to hidden defects that are applicable in the buyers countryThis appliance comes with a warranty that covers all manufacturing faults the warranty period will commence on the date of purchase stated on the installers invoiceThe warranty period is stated in our price listAs a manufacturer we can by no means be held liable if the appliance is used incorrectly is poorly maintained or not maintained at all or is not installed correctly (it is your responsibility to ensure that installation is carried out by a qualified installer)In particular we cannot be held liable for material damage intangible losses or physical injury resulting from an installation that does not comply with

Legal or regulatory requirements or provisions laid down by the local authoritiesNational or local regulations and special provisions relating to the installationOur manuals and installation instructions in particular in terms of regular maintenance of the appliances

Our warranty is limited to the replacement or repair of the parts found to be defective by our technical services team excluding labour transfer and transport costsOur warranty does not cover replacement or repair costs for parts that may become defective due to normal wear incorrect usage the intervention of unqualified third parties inadequate or insufficient supervision or maintenance a mains supply that is not appropriate or the use of unsuitable or poor quality fuelSmaller parts such as motors pumps electrical valves etc are guaranteed only if these parts have never been dismantledThe rights established in European Directive 9944EEC implemented by legal decree No 24 of 2 February 2002 and published in Official Journal No 57 of 8 March 2002 remain in force

11 Warranty

46 Gas 120 ACE 7717202 - v03 - 24062019

12 Spare parts

121 General

If inspection or maintenance work bring to light the need to replace a component in the boilerProvide the reference number given in the spare parts list when ordering a spare part

CautionOnly genuine spare parts may be used

122 Spare parts lists

1221 Exchanger

Fig41

MW-6000743-01

811x

7

7

4

2

16

3

10

119

65

1

13

12

18

14

19

15

18

17

Tab27

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

1 7699615 Complete exchanger x 1 7699614 Complete exchanger x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 47

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

2 S101564 Exchanger front plate x x x3 S54731 Exchanger inspection hatch insulation x x x4 S57241 Exchanger inspection hatch gasket x x x5 S100052 M4x10 self-locking screw (x20) x x x6 S54754 FURQ65 burner x 6 S57477 FURQ85 burner x x7 7623837 Set of 10 k NTC sensors x x x8 S54755 M6 nut (x20) x x x9 7659755 M4x10 screw (x10) x x x10 S53489 Electrode gasket (x10) x x x11 7692359 Ignition electrode x x x12 7631936 Flue gas flow pipe diameter 100 mm x x x13 7624643 NTC 2x20 k flue gas sensor with gasket x x x14 7624619 Ignition transformer x x x15 S56987 ZP M6x16 screw (x10) x x x16 7616253 Valve with support x x x17 7680596 Exchanger bracket x 17 7673616 Exchanger bracket x x18 7701752 Gasket diameter 100 mm (x5) x x x19 7632708 Earth electric clip (x2) x x x

1222 Gas circuit

Fig42

MW-6000744-01

3

2

5

6

9

4

8

10

7

12

11

1

14

13

13

12 Spare parts

48 Gas 120 ACE 7717202 - v03 - 24062019

Tab28Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 S101543 Silencer x 1 S101520 Silencer x 1 S101578 Silencer x2 S54777 Venturi gasket (x5) x 2 S59215 Gas valve-venturi gasket (x5) x 2 S101593 Gaskets (kit) x3 S101726 Fan RG 1481200-3633 x x 3 S100036 Fan RG 148 1200-3633-010202 x4 S101596 Gas valve VK4115v1386 x 4 S101597 Gas valve VK4115vb1012 x 4 S101510 Gas valve GB-ND 057 XP x5 S54766 Venturi x 5 S57488 Venturi x 5 S101595 Venturi VMS 45900450-010 x6 S59215 Gas valve-venturi gasket (x5) x x 7 S57827 Gas valve unit flange x8 S57828 268x22x25 O-ring (x5) x9 S101631 Diaphragm x10 7616249 Flue gas sensor cap (5x) x x x11 S56155 238x177x2 gasket (x20) x x x12 95760050 C HC M4-12 88 ZN3 screw x x x13 S48512 M5-10 screw (x10) x x x14 S101590 Silencer retaining clip x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 49

1223 Hydraulic circuit

Fig43

MW-6000745-01

1

14

6

9

11

8

12

5

37

9

10

2

4

13

Tab29Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7680598 Complete flow pipe x 1 7670807 Complete flow pipe x x2 7672557 Complete return pipe x x x3 7674076 Complete gas pipe x 3 7680434 Complete gas pipe x 3 7670720 Complete gas pipe x4 7698560 HUBA G38 pressure gauge x x x5 94994712 PVC pipe diameter 16x12 x x x6 7699357 Water deflector diameter 100 mm x x x7 94902073 Drain valve 12 x x x8 94918138 Air vent x x x9 95013064 44x32x2 mm green gasket x x x10 95013060 24x17x2 mm green gasket x x 10 95013062 30x21x12 mm green gasket x11 7692329 Condensate hose x x x13 7706103 Assembled siphon height 160 mm x 13 7706038 Assembled siphon height 250 mm x x14 7103731 Condensate drain pan gasket x x x

12 Spare parts

50 Gas 120 ACE 7717202 - v03 - 24062019

1224 Boiler body

Fig44

MW-6000746-01

2

2

1

6

3

34

5

4

Tab30Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7686377 Assembled frame x 1 7686139 Assembled frame x x2 7679958 117x34 handle diameter 65 mm x x x3 7676037 Wheel x x x4 7688301 Frame lateral gasket x 4 7688008 Frame lateral gasket x x5 7688353 Front panel gasket x 5 7688007 Front panel gasket x x6 7693874 R4-05 front panel lock x x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 51

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

E toimistoestsystemsfi

Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 22: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

Keep the boiler accessible at all timesPlace the boiler on a base to make it easier to clean the roomThe boiler can be located along a partition on one of its sides provided there is a 500 mm space on the opposite sideAllow enough space around the boiler to facilitate accessibility and maintenance The minimum recommended dimensions are shown in the illustrationMake sure there is a connection to the water drainage system close to the boiler to discharge any condensates

ImportantTo fit the boiler position the pallet with the package 25 m in front of the desired location for the installation This distance is required to allow the boiler to be removed from its pallet

Tab18Gas 120 ACE - 65 Gas 120 ACE - 90 Gas 120 ACE - 115

A (mm) 500 500 500B (mm) 1082 1304 1304

To allow the intake of combustion air sufficient ventilation must be provided in the boiler room the cross section and position of which must satisfy the regulations in force

Great Britain BS 5440 Part 1 and Part 2

For boilers with a nominal output of more than 70 kW Upper and lower air vents comshypulsory

BS 6644 and IGEMUP-10

Caution

Avoid any low points in the flue gas and condensate discharge circuit in order to prevent any accumulation of condensatesDo not block the air inlets in the room or the combustion product evacuation or condensation water flow pipes (even partially)

If the boiler is installed in closed premises respect the minimum dimensions given in the diagram below Also allow for openings to obviate the following hazards

Accumulation of gasOverheating of the premisesGreat Britain Minimum cross section of openings see BS 5440 Part 1 and Part 2 and BS 6644

523 Ventilation

To allow the intake of combustion air sufficient ventilation must be provided in the boiler room for which the cross section and position must satisfy the regulations in force in the country in which the boiler is installed

Great Britain BS 5440 Part 1 and Part 2

For boilers with a nominal output of more than 70 kW Upper and lower air vents comshypulsory

BS 6644 and IGEMUP-10

Fig9

MW-2000679-03

500

B

1100

AS1

S2

260

580

350

600

500

5 Installation

22 Gas 120 ACE 7717202 - v03 - 24062019

If the boiler is installed in closed premises respect the minimum dimensions given in the diagram below Also allow for openings to obviate the following hazards

Accumulation of gasOverheating of the premisesGreat Britain Minimum cross section of openings see BS 5440 Part 1 and Part 2 and BS 6644

524 Fitting the outdoor sensor

Plugs diameter 4 mmdrill diameter 6 mm

1 Choose a recommended location for the outdoor sensor2 Put the 2 plugs in place delivered with the sensor3 Secure the sensor using the screws provided (diameter 4 mm)4 Connect the cable to the outdoor temperature sensor

Recommended positions

Place the outside sensor in a position that covers the following characteristics

On a faccedilade of the area to be heated on the north if possibleHalf way up the wall of the area to be heatedUnder the influence of changes in the weatherProtected from direct sunlightEasy to access

Fig11

MW-8800N001-3

2

1

2

11

2

H

12 H (min 25 m)

12 H (min 25 m)

12 Z

H

Z

1 Optimum location2 Possible position

H Inhabited height controlled by the sensorZ Inhabited area controlled by the sensor

Positions to be avoided

Avoid placing the outside sensor in a position with the following characteristics

Masked by part of the building (balcony roof etc)Close to a disruptive heat source (sun chimney ventilation grid etc)

Fig10

MW-8800N003-6

23

4

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 23

Fig12

MW-3000014-2

53 Transport

Transport the boiler pallet with a manual or electric pallet truck

54 Unpacking and preparing the boiler

Caution

Wear gloves to handle the boilerTransport the boiler pallet with a manual or electric pallet truckUse carrying bars (not provided) to move the boiler

ImportantTo fit the boiler position the pallet with the package 25 m in front of the desired location for the installation This distance is required to allow the boiler to be removed from its pallet

1 Cut the packaging2 Remove the packaging from the boiler but leave the boiler on the

shipping pallet

ImportantThe documentation bag (user manual + accessories) is contained in the protective block

Fig13

MW-6000736-01

Manual

11

12

5 Installation

24 Gas 120 ACE 7717202 - v03 - 24062019

3 Using a long tool unlock and remove the boilers front door Disconnect the earth wire

4 Remove the mounting bolts from the unloading ramps and the boiler (4 bolts at the rear and 4 bolts at the front)

5 Pull out the unloading ramps and turn them over6 Align the ramps with the rear castor wheels on the boiler

Fig14

MW-6000761-01

3

3

Fig15

MW-6000737-01

4

4

Fig16

MW-6000738-01

5

5

6

6

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 25

7 Lock the ramps correctly onto the pallet8 Screw the unloading ramps onto the pallet9 Fold down the ends of the ramp so that they rest on the ground

10 Tilt the boiler backwards until it is resting on the castor wheels then remove it from the pallet

11 Recycle the pallet

Fig17

MW-6000770-01

9

9

8

7

Fig18

MW-6000739-02

600

350

11

10

550

5 Installation

26 Gas 120 ACE 7717202 - v03 - 24062019

12 Level the boiler using the adjustable feet(1) Factory setting 30 mm adjustment range 20 to 40 mm

CautionThe rear castor wheels must no longer be in contact with the ground

55 Hydraulic connections

551 Water treatment

In many cases the boiler and the heating system can be filled with mains water without treating the water

CautionDo not add any chemical products to the heating water without first consulting a water treatment specialist For example antifreeze water softeners products to increase or reduce the pH value chemical additives andor inhibitors These may cause faults in the boiler and damage the heat exchanger

Important

Flush the installation with at least 3 times the volume of water contained in the heating systemFlush the DHW circuit with at least 20 times its volume of water

The water in the installation must comply with following specifications

Tab19 Installation water specifications Initial commissioning Concentration (top up)Degree of acidity (untreated water) pH 65 - 85 65 - 85

Degree of acidity (treated washyter) pH 70 - 90 70 - 90

Conductivity at 25degC μScm le 500 le 500Chlorides mglitre le 50 le 50Other components mglitre lt 1 lt 1

Total water hardnessdegf 5 - 35 le 15degdH 28 - 200 le 85mmollitre(1) 05 - 35 lt 15

(1) Flow temperature less than 90degC mdash Maximum hardness 150 mmoll

Fig19

MW-6000773-01

(1)

12

12

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 27

ImportantIf water treatment proves necessary Remeha recommends the following manufacturers

CillitClimalifeFernoxPermoSentinel

552 Flushing new installations and installations less than 6 months old

Before filling the heating installation it is essential to remove any debris (copper caulking soldering flux) from the installation

1 Clean the installation with a powerful universal cleaner2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

553 Flushing an existing installation

Before filling the heating installation it is essential to remove any sludge deposits which have accumulated in the heating circuit over the years

1 Remove any sludge from the installation2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

554 Connecting the heating circuit

ImportantAbide by the information shown in the hydraulic diagrams

The pipes are not provided

Caution

The heating pipe must be mounted in accordance with the provisions applicableIf installing stop valves position the filldrain valve and the expansion vessel between the stop valves and the boilerAlways install a safety valve calibrated to a maximum of 4 bar on the heating circuit The safety valve can be connected to a venting pot The safety valve must not be used to drain the heating circuitIt is recommended to install a sludge collector on all installations

SeeIf fitting with a hydraulic kit (low-loss header or plate heat exchanger) refer to the kit manual

555 Connecting the condensate discharge pipe

Use a neutralisation station to achieve a pH value of more than 65 (in accordance with prevailing regulations)Discharge the condensates directly into the mains drainage system via a siphon In view of the acidity level (pH 25 to 3) only condensate discharge pipes made from compatible plastic should be used

5 Installation

28 Gas 120 ACE 7717202 - v03 - 24062019

The condensate discharge pipe is located at the rear of the boiler

Do not block the condensate discharge pipeTilt the discharge pipe by at least 30 mm per metre and make sure there are no low points that could cause the accumulation of water or deposits Maximum horizontal length 5 metresDo not drain condensation water into a roof gutterConnect the condensate discharge pipe in accordance with prevailing standardsIt is preferable to use the condensate neutralisers recommended by the manufacturer of the boiler

1 Connect a plastic hose to the condensate discharge outlet (DN 22)2 Insert the other end of the hose into a waste water discharge outlet

556 Filling the siphon

DangerIf operating with the siphon empty combustion products will escape into the premises in which the boiler is installed

1 Pour water into the flue gas pipe (central pipe) until it flows out of the condensate discharge pipe

56 Gas connection

Danger

Close the main gas valve before starting work on the gas pipesThe diameters of the pipes must be defined in accordance with the standards in force in your countryConnect the gas pipe in accordance with prevailing standards and regulationsEnsure that there is no dust in the gas pipe

The gas pipes are not providedIn old gas networks we recommend fitting a gas filter with a low pressure drop upstream of this point

1 Clean the gas supply pipe2 Remove the anti-dust plug located on the boilers gas inlet3 Mount a gas stop valve (not provided) on the boilers gas inlet4 Connect the gas inlet pipe to the gas stop valve

Fig20

MW-2000825-01

pH gt 65

Oslash32A

Fig21

MW-6000742-02

1

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 29

5 Close the gas supply valve before testing the pressure on the gas supply pipe to avoid damage caused by excessive pressure on the gas regulator Decompress before reopening the valve

561 Gas supply

Before mounting check that the gas meter has sufficient capacity (in m3h) To do this you should bear in mind the consumption of all appliances If the capacity of the gas meter is too low inform the gas supply companyThe boilers are preset to run on G20 gas (gas H) and can be adapted to run with the following gases

G31 (gas P)G3031 (gas BP)

ImportantTo use a different type of gas contact an approved assistance service

57 Air supplyflue gas outlet connections

571 Classification

The discharge and intake pipes must be certified for the appropriate configuration and must meet the requirements of the prevailing installation standards in the country

Tab20 Configurations and recommendations for the flue systemConfiguration Principle DescriptionB23B23P

AD-3001055-01

Connection to a chimney using a CE connection kit (single pipe in a flue comshybustion air taken from the boiler room)Follow the connection instructions and adhere to the recommended maximum pipe lengthsComply with the applicable regulations governing ventilation and cross-secshytions for room aeration vents

B33

MW-5000925-1

Room-ventilated version

Without down-draught diverterJoint flue gas discharge via the roof with guaranteed natural draft (at all times underpressure in the joint discharge duct)Flue gas discharge rinsed with air air from the installation area (special conshystruction)The IP rating of the boiler is lowered to IP20

C13C13X

AD-3001056-01

Airflue gas connection using concentric pipes to a horizontal terminal (so-called forced flue) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

5 Installation

30 Gas 120 ACE 7717202 - v03 - 24062019

Configuration Principle DescriptionC33C33X

AD-3001057-01

Airflue gas connection using concentric pipes to a vertical terminal (roof outshylet) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

C43C43X

MW-2000822-01

Airflue gas connection via concentric pipes to a common pipe supplying severshyal heating applicationsThe common pipe has a roof connection to a vertical terminal that draws in the air required for combustion and discharges the combustion productsUse of CE-certified system

C53

AD-3001058-02

Airflue gas connection via separate pipes lead to two separate terminals One draws in the air required for combustion and the other discharges the combusshytion productsThe outlets may be in different pressure zonesDo not install the air supply and discharge on opposing surfacesUse of CE-certified system

C63C63X

The installer is responsible for installing a CE-certified discharge system that complies with the manufacturers recommendations (temperature flow pressure etc)

The maximum pressure drop in the pipes ΔP must not exceed the values given in the table below The pipes must be certified for this type of use and for a temperature of more than 100 degC The terminal part of the flue gas pipe must be certified as complying with the EN 1856-1 StandardIf installing discharge and intake pipes not supplied by Remeha these must be certified for the intended type of use and their maximum pressure drop must be compliant

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 31

Configuration Principle DescriptionC83C83X

MW-2000823-01

Flue gas connection to a collective flue for sealed boilers The air supply is inshydividual via a terminal coming from outside the buildingA concentric pipe can be used to both supply the boiler with combustion air and connect to the collective flue gas discharge systemThe chimney or flue gas pipe must be suitable for such use and the system CE certified

C93C93X

AD-3001059-01

Airflue gas connection via concentric pipes in an existing chimney The air supshyply in the chimney may be installed via the existing channel or via tubing Flue gas discharge and air intake are via a vertical terminal at the top of the chimney

The air intake and discharge must be close enough to be in the same pressure zoneThe minimum cross-sections are shown in the table belowThe flue system must be suitable for the intended use and the system CE certishyfied

Tab21 Minimum dimensions of the duct or pipe C93 C93X

Version (D) Without air supply With air supplyRigid 80 mm Oslash 130 mm 130 x 130 mm Oslash 140 mm 130 x 130 mmRigid 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmRigid 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmFlexible 80 mm Oslash 130 mm 130 x 130 mm Oslash 145 mm 130 x 130 mmFlexible 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmFlexible 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmConcentric 80125 mm Oslash 145 mm 145 x 145 mm Oslash 145 mm 145 x 145 mmConcentric 100150 mm Oslash 170 mm 170 x 170 mm Oslash 170 mm 170 x 170 mmConcentric 150200 mm Oslash 270 mm 270 x 270 mm - -

ImportantThe duct must comply with the air density requirements of the local regulations

Important

Only original components are authorised for connection to the boiler and for the terminalThe clear section must comply with the standardThe chimney must be swept before installing the discharge flue

CautionEnsure that the flue gas discharge pipes are securely attached to the wall with suitable retaining flanges to prevent any damage and guarantee the tightness of every gasket in the circuit

CautionThe minimum gradient of the condensates discharge pipe from the boiler to the waste water discharge must be 1 cm per linear metre

Fig22 Minimum dimensions of the duct or pipe C93 C93X

AD-3000330-03

D

Oslash

D

5 Installation

32 Gas 120 ACE 7717202 - v03 - 24062019

572 Lengths of the airflue gas pipes

The maximum lengths (Lmax) given in the table are valid for pipes in which the horizontal sections do not exceed one metre in total For each additional metre of horizontal pipe a multiplication coefficient of 12 must be applied when calculating the total length L The total length L is calculated by adding the lengths of the straight airflue gas pipes and the equivalent lengths of the other componentsAlways ensure that L is less than Lmax

ImportantFor the list of flue gas system accessories and the equivalent lengths refer to the current price list

Tab22 Lengths of the airflue gas pipes in metresConfigurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 100 mm 26 24 19

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 110 mm 40 40 40

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 110 mm 295 24 175

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 80125 mm - - -

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 100150 mm 9 8 59

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 80125 mm - - -

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 100150 mm 115 10 94

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 80125 mm over 2x80 mm

- - -

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 100150 mm over 2x100 mm

23 175 Air 11Flue gases 5

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm110 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 110150 mm110 mm

16 132 10

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 33

Configurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 110150 mm110 mm

165 135 94

Tab23 PPS pipe reduction for each element used

Diameter 80 mmSingle

80125 mmConcentric

100 mmSingle

100150 mmConcentric

45deg elbow 12 m 10 m 11 m 10 m87deg elbow 19 m 15 m 20 m 37 mStraight inspection tube 03 m 06 m - 10 m87deg inspection elbow 19 m 20 m 48 m -Inspection T 42 m 27 m 56 m 25 mInspection tube for flexible pipe 03 m - 05 m -

573 Dimensions of flue gas outlet pipe

WarningThe pipes connected to the flue gas adapter must satisfy the following dimension requirements

d1 External dimensions of flue gas outlet pipe

Tab24 Dimensions of pipe d1 (min-max)80 mm 793 - 803 mm100 mm 993 - 1003 mm150 mm 149 - 151 mm

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipe

Tab25 Dimensions of pipe d1 (min-max) D1 (min-max)8080 mm 793 - 803 mm 793 - 803 mm100100 mm 993 - 1003 mm 993 - 1003 mm110110 mm 1093 - 1103 mm 1093 - 1103 mm150150 mm 149 - 151 mm 149 - 151 mm

Fig23 Dimensions of open connection

AD-3001094-01

oslashd1

Fig24 Dimensions of parallel connection

AD-3000963-01

oslashd1 oslashD1

5 Installation

34 Gas 120 ACE 7717202 - v03 - 24062019

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipeL1 Length difference between flue gas outlet pipe and air supply pipe

Tab26 Dimensions of pipe d1 (min-max) D1 (min-max) L1

(1) (min-max)80125 mm 793 - 803 mm 124 - 1255 mm 0 - 15 mm100150 mm 993 - 1003 mm 149 - 151 mm 0 - 15 mm

(1) Shorten the inner pipe if the length difference is too great

574 Connection to the flue gas pipe

At delivery the flue gas outletair supply is fixed inside the boiler

1 Using a long tool unlock and remove the boilers front door2 Remove the boiler outlet

3 Two options for connection to the flue gas pipe

Option Description3a Connection to a vertical flue gas pipe Position the flue gas

outletair supply directly at the boiler outlet3b Connection to a horizontal flue gas pipe Insert an outlet elshy

bow ( not supplied) before the flue gas outletair supply

ImportantLubricate the gaskets on the flue system during assembly

Fig25 Dimensions of concentric connection

AD-3000962-01

oslashd1

L1

oslashD1

Fig26

MW-2000867-02

1

2

1

Fig27

3a 3b

MW-2000868-01

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 35

Fastening the coaxial pipes Fasten the intake pipes with two galvanised Oslash 42 mm screws with a maximum length of 16 mm

CautionBefore fixing the screws make sure that at least 45 cm of pipe is inserted in the gasket of the other pipe

WarningGuarantee a minimum pipe slope towards the boiler of at least 5 cm per metre

Fig28 Fastening the coaxial pipes using screws

BO-0000030

16 mm

5 Installation

36 Gas 120 ACE 7717202 - v03 - 24062019

6 Operation

61 Settings

To configure the installation and use the boiler please refer to the control unit manual

6 Operation

7717202 - v03 - 24062019 Gas 120 ACE 37

7 Maintenance

71 General

We recommend having the boiler inspected and serviced at regular intervals

CautionDo not neglect to service the boiler Contact a qualified professional or take out a maintenance contract for the obligatory annual servicing of the boilerFailure to service the appliance voids the warranty

Danger of electric shockBefore service work is started the boiler has to be de-energised and secured from accidentally being switched back on

CautionHave an inspection carried out and the flues swept at least once a year or more depending on the regulations in force in your country

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

CautionAfter maintenance or repair work check the entire heating system to ensure that there are no leaks

CautionOnly genuine spare parts may be used

72 Specific maintenance operations

721 Cleaning the siphon

1 Remove the flue gas outlet discharge pipe

2 Remove the condensate discharge pipe 3 Remove the screw from the siphon

Fig29

1

MW-2000903-01

Fig30

2

3

MW-2000904-01

7 Maintenance

38 Gas 120 ACE 7717202 - v03 - 24062019

4 Pull the siphon downwards to disengage it and pivot it to release it

5 Flush the siphon 6 Drain the siphon

7 Fill the siphon with clean water up to the mark 8 Lubricate the siphon gasket9 Re-engage the siphon and refit the screw

10 Refit the two pipes

722 Checking the ionisation current

1 Check the ionisation current at full load and at low loadThe value is stable after 1 minute

2 Clean or replace the ionisationignition electrode if the value is lower than 4 microA

Fig31

4

90deg

MW-2000905-01

Fig32

MW-2000843-01

Fig33

MW-2000844-01

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 39

723 Replace the ionizationignition electrode

The ionizationignition electrode must be replaced if

The ionization current is lt 4 microAThe electrode is damaged or worn

1 Remove the plug of the electrode from the igniter

ImportantThe ignition cable is fixed to the electrode and therefore may not be removed

2 Remove the two screws3 Remove the entire component4 Fit the new ionizationignition electrode with a new seal5 Reassemble the unit in the reverse order to disassembly

724 Servicing the forced flue connection pipes

1 Open the inspection hatches or remove the pipes2 Check that the air supply and discharge pipes are not blocked

If necessary clean the discharge pipe3 Check the tightness of the flue gas system4 Replace the tightness gaskets and if necessary any sections of pipe

until tightness is perfect

725 Checking the burner and cleaning the heat exchanger

1 Remove the air inlet flue on the venturi2 Loosen the gland on the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

Fig34

AD-0000088-01

4

1

2

3

Fig35 Removing the fan

AD-3001178-01

1

3

4

2

5

7 Maintenance

40 Gas 120 ACE 7717202 - v03 - 24062019

6 Remove the front plate from the heat exchanger7 Carefully lift the front plate including the burner and fan away from

the heat exchanger

8 Use a vacuum cleaner fitted with a special endpiece (accessory) to clean the top part of the heat exchanger (combustion chamber)

9 Vacuum again without the top brush on the end piece10 Clean the lower section of the heat exchanger with the special

cleaning blade (accessory)11 Check (eg using a mirror) whether any visible contamination has

been left behind If it has remove it with the vacuum cleaner12 Check that the burner cover of the dismantled burner is free from

cracks andor damage If not replace the burnerServicing the burner is usually not necessary it is self-cleaning Use compressed air to carefully blow away any dust

13 Reassemble the unit in reverse order

CautionRemember to reconnect the fan plugCheck that the gasket is correctly positioned between the mixing elbow and the heat exchanger (the gasket must lie absolutely flat in the appropriate groove to ensure that no gas can leak)Tighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the front plate nuts with a torque wrench to the firmness of 10 Nm

14 Open the gas supply and switch the power supply to the boiler back on

Fig36 Removing the front plate fan and burner

AD-3001179-01

6

7

Fig37 Cleaning the heat exchanger

AD-3001180-01

10

8 9

12

11

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 41

726 Checking the non-return valve

1 Remove the air inlet pipe from the venturi2 Unscrew the gland of the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

6 Dismantle the fan7 Remove the fan together with the gas valve unit8 Inspect the non-return valve and replace it in the event of a defect or

damage or if the maintenance kit contains a non-return valve9 Reassemble in the reverse order

CautionRemember to reconnect the fan plugTighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the two fan nuts with a torque wrench to the firmness of 38 Nm

Fig38 Disconnecting the fan

AD-3001178-01

1

3

4

2

5

Fig39 Checking the non-return valve

AD-3001181-01

2x

68

7

9

7 Maintenance

42 Gas 120 ACE 7717202 - v03 - 24062019

8 Decommissioning

81 Decommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

To switch off the boiler temporarily or permanently proceed as follows

1 Switch the boiler off2 Cut the electrical power to the boiler3 Close the gas valve on the boiler4 Drain the central heating system or ensure frost protection5 Close the door of the boiler to prevent air circulating inside it6 Remove the pipe connecting the boiler to the chimney and close the

nozzle with a plug

82 Recommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

Should it prove necessary to carry out the recommissioning of the boiler proceed as follows

1 Re-establish electrical power to the boiler2 Fit and check the flue gas pipe3 Fill the siphon with water4 Fill the central heating system5 Open the boiler gas valve6 Start up the boiler

8 Decommissioning

7717202 - v03 - 24062019 Gas 120 ACE 43

9 Disposal and recyclingCautionOnly qualified professionals are permitted to remove and dispose of the boiler in accordance with local and national regulations

If you need to remove the boiler proceed as follows

1 Switch off the boiler2 Cut the power supply to the boiler3 Close the main gas valve4 Close the water mains5 Close the gas valve on the boiler6 Drain the installation7 Remove the airflue gas pipes8 Disconnect all pipes9 Dismantle the boiler

Fig40

MW-3000179-03

9 Disposal and recycling

44 Gas 120 ACE 7717202 - v03 - 24062019

10 Environmental

101 Energy savings

Energy-saving advice

Do not block ventilation outletsDo not cover the radiators Do not hang curtains in front of the radiatorsInstall reflective panels behind the radiators to prevent heat lossesInsulate the pipes in rooms that are not heated (cellars and lofts)Close the radiators in rooms not in useDo not run hot (or cold) water pointlesslyInstall an energy-saving shower head which can save up to 40 energyTake showers rather than baths A bath consumes twice as much water and energy

102 Room thermostat and settings

Various models of room thermostat are available The type of thermostat used and the parameter selected impact total energy consumption

A modulating regulator which may be combined with thermostatic valves is eco-friendly in terms of energy and offers an excellent level of comfort This combination allows you to set the temperature separately for each room However do not install thermostatic radiator valves in the room in which the room thermostat is locatedComplete opening and closing of the thermostatic radiator valves causes undesirable variations in temperature Therefore these must be openedclosed progressivelySet the room thermostat to a temperature of approximately 20degC to reduce heating costs and energy consumptionLower the thermostat setting to approximately 16degC at night or when you are not at home This reduces heating costs and energy consumptionLower the thermostat setting well before airing the roomsSet the water temperature to a lower level in summer than in winter (eg 60degC and 80degC respectively) when an ONOFF thermostatis usedWhen clock thermostats and programmable thermostats are to be set do not forget to take any holidays and days when no one is at home into account

10 Environmental

7717202 - v03 - 24062019 Gas 120 ACE 45

11 Warranty

111 General

We would like to thank you for buying one of our appliances and for your trust in our productIn order to ensure continued safe and efficient operation we recommend that the product is regularly inspected and maintainedYour installer and our service department can assist with this

112 Terms of warranty

The following provisions do not affect the application in favour of the buyer of the legal provisions with regard to hidden defects that are applicable in the buyers countryThis appliance comes with a warranty that covers all manufacturing faults the warranty period will commence on the date of purchase stated on the installers invoiceThe warranty period is stated in our price listAs a manufacturer we can by no means be held liable if the appliance is used incorrectly is poorly maintained or not maintained at all or is not installed correctly (it is your responsibility to ensure that installation is carried out by a qualified installer)In particular we cannot be held liable for material damage intangible losses or physical injury resulting from an installation that does not comply with

Legal or regulatory requirements or provisions laid down by the local authoritiesNational or local regulations and special provisions relating to the installationOur manuals and installation instructions in particular in terms of regular maintenance of the appliances

Our warranty is limited to the replacement or repair of the parts found to be defective by our technical services team excluding labour transfer and transport costsOur warranty does not cover replacement or repair costs for parts that may become defective due to normal wear incorrect usage the intervention of unqualified third parties inadequate or insufficient supervision or maintenance a mains supply that is not appropriate or the use of unsuitable or poor quality fuelSmaller parts such as motors pumps electrical valves etc are guaranteed only if these parts have never been dismantledThe rights established in European Directive 9944EEC implemented by legal decree No 24 of 2 February 2002 and published in Official Journal No 57 of 8 March 2002 remain in force

11 Warranty

46 Gas 120 ACE 7717202 - v03 - 24062019

12 Spare parts

121 General

If inspection or maintenance work bring to light the need to replace a component in the boilerProvide the reference number given in the spare parts list when ordering a spare part

CautionOnly genuine spare parts may be used

122 Spare parts lists

1221 Exchanger

Fig41

MW-6000743-01

811x

7

7

4

2

16

3

10

119

65

1

13

12

18

14

19

15

18

17

Tab27

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

1 7699615 Complete exchanger x 1 7699614 Complete exchanger x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 47

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

2 S101564 Exchanger front plate x x x3 S54731 Exchanger inspection hatch insulation x x x4 S57241 Exchanger inspection hatch gasket x x x5 S100052 M4x10 self-locking screw (x20) x x x6 S54754 FURQ65 burner x 6 S57477 FURQ85 burner x x7 7623837 Set of 10 k NTC sensors x x x8 S54755 M6 nut (x20) x x x9 7659755 M4x10 screw (x10) x x x10 S53489 Electrode gasket (x10) x x x11 7692359 Ignition electrode x x x12 7631936 Flue gas flow pipe diameter 100 mm x x x13 7624643 NTC 2x20 k flue gas sensor with gasket x x x14 7624619 Ignition transformer x x x15 S56987 ZP M6x16 screw (x10) x x x16 7616253 Valve with support x x x17 7680596 Exchanger bracket x 17 7673616 Exchanger bracket x x18 7701752 Gasket diameter 100 mm (x5) x x x19 7632708 Earth electric clip (x2) x x x

1222 Gas circuit

Fig42

MW-6000744-01

3

2

5

6

9

4

8

10

7

12

11

1

14

13

13

12 Spare parts

48 Gas 120 ACE 7717202 - v03 - 24062019

Tab28Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 S101543 Silencer x 1 S101520 Silencer x 1 S101578 Silencer x2 S54777 Venturi gasket (x5) x 2 S59215 Gas valve-venturi gasket (x5) x 2 S101593 Gaskets (kit) x3 S101726 Fan RG 1481200-3633 x x 3 S100036 Fan RG 148 1200-3633-010202 x4 S101596 Gas valve VK4115v1386 x 4 S101597 Gas valve VK4115vb1012 x 4 S101510 Gas valve GB-ND 057 XP x5 S54766 Venturi x 5 S57488 Venturi x 5 S101595 Venturi VMS 45900450-010 x6 S59215 Gas valve-venturi gasket (x5) x x 7 S57827 Gas valve unit flange x8 S57828 268x22x25 O-ring (x5) x9 S101631 Diaphragm x10 7616249 Flue gas sensor cap (5x) x x x11 S56155 238x177x2 gasket (x20) x x x12 95760050 C HC M4-12 88 ZN3 screw x x x13 S48512 M5-10 screw (x10) x x x14 S101590 Silencer retaining clip x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 49

1223 Hydraulic circuit

Fig43

MW-6000745-01

1

14

6

9

11

8

12

5

37

9

10

2

4

13

Tab29Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7680598 Complete flow pipe x 1 7670807 Complete flow pipe x x2 7672557 Complete return pipe x x x3 7674076 Complete gas pipe x 3 7680434 Complete gas pipe x 3 7670720 Complete gas pipe x4 7698560 HUBA G38 pressure gauge x x x5 94994712 PVC pipe diameter 16x12 x x x6 7699357 Water deflector diameter 100 mm x x x7 94902073 Drain valve 12 x x x8 94918138 Air vent x x x9 95013064 44x32x2 mm green gasket x x x10 95013060 24x17x2 mm green gasket x x 10 95013062 30x21x12 mm green gasket x11 7692329 Condensate hose x x x13 7706103 Assembled siphon height 160 mm x 13 7706038 Assembled siphon height 250 mm x x14 7103731 Condensate drain pan gasket x x x

12 Spare parts

50 Gas 120 ACE 7717202 - v03 - 24062019

1224 Boiler body

Fig44

MW-6000746-01

2

2

1

6

3

34

5

4

Tab30Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7686377 Assembled frame x 1 7686139 Assembled frame x x2 7679958 117x34 handle diameter 65 mm x x x3 7676037 Wheel x x x4 7688301 Frame lateral gasket x 4 7688008 Frame lateral gasket x x5 7688353 Front panel gasket x 5 7688007 Front panel gasket x x6 7693874 R4-05 front panel lock x x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 51

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

E toimistoestsystemsfi

Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 23: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

If the boiler is installed in closed premises respect the minimum dimensions given in the diagram below Also allow for openings to obviate the following hazards

Accumulation of gasOverheating of the premisesGreat Britain Minimum cross section of openings see BS 5440 Part 1 and Part 2 and BS 6644

524 Fitting the outdoor sensor

Plugs diameter 4 mmdrill diameter 6 mm

1 Choose a recommended location for the outdoor sensor2 Put the 2 plugs in place delivered with the sensor3 Secure the sensor using the screws provided (diameter 4 mm)4 Connect the cable to the outdoor temperature sensor

Recommended positions

Place the outside sensor in a position that covers the following characteristics

On a faccedilade of the area to be heated on the north if possibleHalf way up the wall of the area to be heatedUnder the influence of changes in the weatherProtected from direct sunlightEasy to access

Fig11

MW-8800N001-3

2

1

2

11

2

H

12 H (min 25 m)

12 H (min 25 m)

12 Z

H

Z

1 Optimum location2 Possible position

H Inhabited height controlled by the sensorZ Inhabited area controlled by the sensor

Positions to be avoided

Avoid placing the outside sensor in a position with the following characteristics

Masked by part of the building (balcony roof etc)Close to a disruptive heat source (sun chimney ventilation grid etc)

Fig10

MW-8800N003-6

23

4

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 23

Fig12

MW-3000014-2

53 Transport

Transport the boiler pallet with a manual or electric pallet truck

54 Unpacking and preparing the boiler

Caution

Wear gloves to handle the boilerTransport the boiler pallet with a manual or electric pallet truckUse carrying bars (not provided) to move the boiler

ImportantTo fit the boiler position the pallet with the package 25 m in front of the desired location for the installation This distance is required to allow the boiler to be removed from its pallet

1 Cut the packaging2 Remove the packaging from the boiler but leave the boiler on the

shipping pallet

ImportantThe documentation bag (user manual + accessories) is contained in the protective block

Fig13

MW-6000736-01

Manual

11

12

5 Installation

24 Gas 120 ACE 7717202 - v03 - 24062019

3 Using a long tool unlock and remove the boilers front door Disconnect the earth wire

4 Remove the mounting bolts from the unloading ramps and the boiler (4 bolts at the rear and 4 bolts at the front)

5 Pull out the unloading ramps and turn them over6 Align the ramps with the rear castor wheels on the boiler

Fig14

MW-6000761-01

3

3

Fig15

MW-6000737-01

4

4

Fig16

MW-6000738-01

5

5

6

6

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 25

7 Lock the ramps correctly onto the pallet8 Screw the unloading ramps onto the pallet9 Fold down the ends of the ramp so that they rest on the ground

10 Tilt the boiler backwards until it is resting on the castor wheels then remove it from the pallet

11 Recycle the pallet

Fig17

MW-6000770-01

9

9

8

7

Fig18

MW-6000739-02

600

350

11

10

550

5 Installation

26 Gas 120 ACE 7717202 - v03 - 24062019

12 Level the boiler using the adjustable feet(1) Factory setting 30 mm adjustment range 20 to 40 mm

CautionThe rear castor wheels must no longer be in contact with the ground

55 Hydraulic connections

551 Water treatment

In many cases the boiler and the heating system can be filled with mains water without treating the water

CautionDo not add any chemical products to the heating water without first consulting a water treatment specialist For example antifreeze water softeners products to increase or reduce the pH value chemical additives andor inhibitors These may cause faults in the boiler and damage the heat exchanger

Important

Flush the installation with at least 3 times the volume of water contained in the heating systemFlush the DHW circuit with at least 20 times its volume of water

The water in the installation must comply with following specifications

Tab19 Installation water specifications Initial commissioning Concentration (top up)Degree of acidity (untreated water) pH 65 - 85 65 - 85

Degree of acidity (treated washyter) pH 70 - 90 70 - 90

Conductivity at 25degC μScm le 500 le 500Chlorides mglitre le 50 le 50Other components mglitre lt 1 lt 1

Total water hardnessdegf 5 - 35 le 15degdH 28 - 200 le 85mmollitre(1) 05 - 35 lt 15

(1) Flow temperature less than 90degC mdash Maximum hardness 150 mmoll

Fig19

MW-6000773-01

(1)

12

12

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 27

ImportantIf water treatment proves necessary Remeha recommends the following manufacturers

CillitClimalifeFernoxPermoSentinel

552 Flushing new installations and installations less than 6 months old

Before filling the heating installation it is essential to remove any debris (copper caulking soldering flux) from the installation

1 Clean the installation with a powerful universal cleaner2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

553 Flushing an existing installation

Before filling the heating installation it is essential to remove any sludge deposits which have accumulated in the heating circuit over the years

1 Remove any sludge from the installation2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

554 Connecting the heating circuit

ImportantAbide by the information shown in the hydraulic diagrams

The pipes are not provided

Caution

The heating pipe must be mounted in accordance with the provisions applicableIf installing stop valves position the filldrain valve and the expansion vessel between the stop valves and the boilerAlways install a safety valve calibrated to a maximum of 4 bar on the heating circuit The safety valve can be connected to a venting pot The safety valve must not be used to drain the heating circuitIt is recommended to install a sludge collector on all installations

SeeIf fitting with a hydraulic kit (low-loss header or plate heat exchanger) refer to the kit manual

555 Connecting the condensate discharge pipe

Use a neutralisation station to achieve a pH value of more than 65 (in accordance with prevailing regulations)Discharge the condensates directly into the mains drainage system via a siphon In view of the acidity level (pH 25 to 3) only condensate discharge pipes made from compatible plastic should be used

5 Installation

28 Gas 120 ACE 7717202 - v03 - 24062019

The condensate discharge pipe is located at the rear of the boiler

Do not block the condensate discharge pipeTilt the discharge pipe by at least 30 mm per metre and make sure there are no low points that could cause the accumulation of water or deposits Maximum horizontal length 5 metresDo not drain condensation water into a roof gutterConnect the condensate discharge pipe in accordance with prevailing standardsIt is preferable to use the condensate neutralisers recommended by the manufacturer of the boiler

1 Connect a plastic hose to the condensate discharge outlet (DN 22)2 Insert the other end of the hose into a waste water discharge outlet

556 Filling the siphon

DangerIf operating with the siphon empty combustion products will escape into the premises in which the boiler is installed

1 Pour water into the flue gas pipe (central pipe) until it flows out of the condensate discharge pipe

56 Gas connection

Danger

Close the main gas valve before starting work on the gas pipesThe diameters of the pipes must be defined in accordance with the standards in force in your countryConnect the gas pipe in accordance with prevailing standards and regulationsEnsure that there is no dust in the gas pipe

The gas pipes are not providedIn old gas networks we recommend fitting a gas filter with a low pressure drop upstream of this point

1 Clean the gas supply pipe2 Remove the anti-dust plug located on the boilers gas inlet3 Mount a gas stop valve (not provided) on the boilers gas inlet4 Connect the gas inlet pipe to the gas stop valve

Fig20

MW-2000825-01

pH gt 65

Oslash32A

Fig21

MW-6000742-02

1

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 29

5 Close the gas supply valve before testing the pressure on the gas supply pipe to avoid damage caused by excessive pressure on the gas regulator Decompress before reopening the valve

561 Gas supply

Before mounting check that the gas meter has sufficient capacity (in m3h) To do this you should bear in mind the consumption of all appliances If the capacity of the gas meter is too low inform the gas supply companyThe boilers are preset to run on G20 gas (gas H) and can be adapted to run with the following gases

G31 (gas P)G3031 (gas BP)

ImportantTo use a different type of gas contact an approved assistance service

57 Air supplyflue gas outlet connections

571 Classification

The discharge and intake pipes must be certified for the appropriate configuration and must meet the requirements of the prevailing installation standards in the country

Tab20 Configurations and recommendations for the flue systemConfiguration Principle DescriptionB23B23P

AD-3001055-01

Connection to a chimney using a CE connection kit (single pipe in a flue comshybustion air taken from the boiler room)Follow the connection instructions and adhere to the recommended maximum pipe lengthsComply with the applicable regulations governing ventilation and cross-secshytions for room aeration vents

B33

MW-5000925-1

Room-ventilated version

Without down-draught diverterJoint flue gas discharge via the roof with guaranteed natural draft (at all times underpressure in the joint discharge duct)Flue gas discharge rinsed with air air from the installation area (special conshystruction)The IP rating of the boiler is lowered to IP20

C13C13X

AD-3001056-01

Airflue gas connection using concentric pipes to a horizontal terminal (so-called forced flue) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

5 Installation

30 Gas 120 ACE 7717202 - v03 - 24062019

Configuration Principle DescriptionC33C33X

AD-3001057-01

Airflue gas connection using concentric pipes to a vertical terminal (roof outshylet) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

C43C43X

MW-2000822-01

Airflue gas connection via concentric pipes to a common pipe supplying severshyal heating applicationsThe common pipe has a roof connection to a vertical terminal that draws in the air required for combustion and discharges the combustion productsUse of CE-certified system

C53

AD-3001058-02

Airflue gas connection via separate pipes lead to two separate terminals One draws in the air required for combustion and the other discharges the combusshytion productsThe outlets may be in different pressure zonesDo not install the air supply and discharge on opposing surfacesUse of CE-certified system

C63C63X

The installer is responsible for installing a CE-certified discharge system that complies with the manufacturers recommendations (temperature flow pressure etc)

The maximum pressure drop in the pipes ΔP must not exceed the values given in the table below The pipes must be certified for this type of use and for a temperature of more than 100 degC The terminal part of the flue gas pipe must be certified as complying with the EN 1856-1 StandardIf installing discharge and intake pipes not supplied by Remeha these must be certified for the intended type of use and their maximum pressure drop must be compliant

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 31

Configuration Principle DescriptionC83C83X

MW-2000823-01

Flue gas connection to a collective flue for sealed boilers The air supply is inshydividual via a terminal coming from outside the buildingA concentric pipe can be used to both supply the boiler with combustion air and connect to the collective flue gas discharge systemThe chimney or flue gas pipe must be suitable for such use and the system CE certified

C93C93X

AD-3001059-01

Airflue gas connection via concentric pipes in an existing chimney The air supshyply in the chimney may be installed via the existing channel or via tubing Flue gas discharge and air intake are via a vertical terminal at the top of the chimney

The air intake and discharge must be close enough to be in the same pressure zoneThe minimum cross-sections are shown in the table belowThe flue system must be suitable for the intended use and the system CE certishyfied

Tab21 Minimum dimensions of the duct or pipe C93 C93X

Version (D) Without air supply With air supplyRigid 80 mm Oslash 130 mm 130 x 130 mm Oslash 140 mm 130 x 130 mmRigid 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmRigid 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmFlexible 80 mm Oslash 130 mm 130 x 130 mm Oslash 145 mm 130 x 130 mmFlexible 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmFlexible 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmConcentric 80125 mm Oslash 145 mm 145 x 145 mm Oslash 145 mm 145 x 145 mmConcentric 100150 mm Oslash 170 mm 170 x 170 mm Oslash 170 mm 170 x 170 mmConcentric 150200 mm Oslash 270 mm 270 x 270 mm - -

ImportantThe duct must comply with the air density requirements of the local regulations

Important

Only original components are authorised for connection to the boiler and for the terminalThe clear section must comply with the standardThe chimney must be swept before installing the discharge flue

CautionEnsure that the flue gas discharge pipes are securely attached to the wall with suitable retaining flanges to prevent any damage and guarantee the tightness of every gasket in the circuit

CautionThe minimum gradient of the condensates discharge pipe from the boiler to the waste water discharge must be 1 cm per linear metre

Fig22 Minimum dimensions of the duct or pipe C93 C93X

AD-3000330-03

D

Oslash

D

5 Installation

32 Gas 120 ACE 7717202 - v03 - 24062019

572 Lengths of the airflue gas pipes

The maximum lengths (Lmax) given in the table are valid for pipes in which the horizontal sections do not exceed one metre in total For each additional metre of horizontal pipe a multiplication coefficient of 12 must be applied when calculating the total length L The total length L is calculated by adding the lengths of the straight airflue gas pipes and the equivalent lengths of the other componentsAlways ensure that L is less than Lmax

ImportantFor the list of flue gas system accessories and the equivalent lengths refer to the current price list

Tab22 Lengths of the airflue gas pipes in metresConfigurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 100 mm 26 24 19

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 110 mm 40 40 40

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 110 mm 295 24 175

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 80125 mm - - -

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 100150 mm 9 8 59

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 80125 mm - - -

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 100150 mm 115 10 94

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 80125 mm over 2x80 mm

- - -

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 100150 mm over 2x100 mm

23 175 Air 11Flue gases 5

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm110 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 110150 mm110 mm

16 132 10

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 33

Configurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 110150 mm110 mm

165 135 94

Tab23 PPS pipe reduction for each element used

Diameter 80 mmSingle

80125 mmConcentric

100 mmSingle

100150 mmConcentric

45deg elbow 12 m 10 m 11 m 10 m87deg elbow 19 m 15 m 20 m 37 mStraight inspection tube 03 m 06 m - 10 m87deg inspection elbow 19 m 20 m 48 m -Inspection T 42 m 27 m 56 m 25 mInspection tube for flexible pipe 03 m - 05 m -

573 Dimensions of flue gas outlet pipe

WarningThe pipes connected to the flue gas adapter must satisfy the following dimension requirements

d1 External dimensions of flue gas outlet pipe

Tab24 Dimensions of pipe d1 (min-max)80 mm 793 - 803 mm100 mm 993 - 1003 mm150 mm 149 - 151 mm

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipe

Tab25 Dimensions of pipe d1 (min-max) D1 (min-max)8080 mm 793 - 803 mm 793 - 803 mm100100 mm 993 - 1003 mm 993 - 1003 mm110110 mm 1093 - 1103 mm 1093 - 1103 mm150150 mm 149 - 151 mm 149 - 151 mm

Fig23 Dimensions of open connection

AD-3001094-01

oslashd1

Fig24 Dimensions of parallel connection

AD-3000963-01

oslashd1 oslashD1

5 Installation

34 Gas 120 ACE 7717202 - v03 - 24062019

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipeL1 Length difference between flue gas outlet pipe and air supply pipe

Tab26 Dimensions of pipe d1 (min-max) D1 (min-max) L1

(1) (min-max)80125 mm 793 - 803 mm 124 - 1255 mm 0 - 15 mm100150 mm 993 - 1003 mm 149 - 151 mm 0 - 15 mm

(1) Shorten the inner pipe if the length difference is too great

574 Connection to the flue gas pipe

At delivery the flue gas outletair supply is fixed inside the boiler

1 Using a long tool unlock and remove the boilers front door2 Remove the boiler outlet

3 Two options for connection to the flue gas pipe

Option Description3a Connection to a vertical flue gas pipe Position the flue gas

outletair supply directly at the boiler outlet3b Connection to a horizontal flue gas pipe Insert an outlet elshy

bow ( not supplied) before the flue gas outletair supply

ImportantLubricate the gaskets on the flue system during assembly

Fig25 Dimensions of concentric connection

AD-3000962-01

oslashd1

L1

oslashD1

Fig26

MW-2000867-02

1

2

1

Fig27

3a 3b

MW-2000868-01

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 35

Fastening the coaxial pipes Fasten the intake pipes with two galvanised Oslash 42 mm screws with a maximum length of 16 mm

CautionBefore fixing the screws make sure that at least 45 cm of pipe is inserted in the gasket of the other pipe

WarningGuarantee a minimum pipe slope towards the boiler of at least 5 cm per metre

Fig28 Fastening the coaxial pipes using screws

BO-0000030

16 mm

5 Installation

36 Gas 120 ACE 7717202 - v03 - 24062019

6 Operation

61 Settings

To configure the installation and use the boiler please refer to the control unit manual

6 Operation

7717202 - v03 - 24062019 Gas 120 ACE 37

7 Maintenance

71 General

We recommend having the boiler inspected and serviced at regular intervals

CautionDo not neglect to service the boiler Contact a qualified professional or take out a maintenance contract for the obligatory annual servicing of the boilerFailure to service the appliance voids the warranty

Danger of electric shockBefore service work is started the boiler has to be de-energised and secured from accidentally being switched back on

CautionHave an inspection carried out and the flues swept at least once a year or more depending on the regulations in force in your country

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

CautionAfter maintenance or repair work check the entire heating system to ensure that there are no leaks

CautionOnly genuine spare parts may be used

72 Specific maintenance operations

721 Cleaning the siphon

1 Remove the flue gas outlet discharge pipe

2 Remove the condensate discharge pipe 3 Remove the screw from the siphon

Fig29

1

MW-2000903-01

Fig30

2

3

MW-2000904-01

7 Maintenance

38 Gas 120 ACE 7717202 - v03 - 24062019

4 Pull the siphon downwards to disengage it and pivot it to release it

5 Flush the siphon 6 Drain the siphon

7 Fill the siphon with clean water up to the mark 8 Lubricate the siphon gasket9 Re-engage the siphon and refit the screw

10 Refit the two pipes

722 Checking the ionisation current

1 Check the ionisation current at full load and at low loadThe value is stable after 1 minute

2 Clean or replace the ionisationignition electrode if the value is lower than 4 microA

Fig31

4

90deg

MW-2000905-01

Fig32

MW-2000843-01

Fig33

MW-2000844-01

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 39

723 Replace the ionizationignition electrode

The ionizationignition electrode must be replaced if

The ionization current is lt 4 microAThe electrode is damaged or worn

1 Remove the plug of the electrode from the igniter

ImportantThe ignition cable is fixed to the electrode and therefore may not be removed

2 Remove the two screws3 Remove the entire component4 Fit the new ionizationignition electrode with a new seal5 Reassemble the unit in the reverse order to disassembly

724 Servicing the forced flue connection pipes

1 Open the inspection hatches or remove the pipes2 Check that the air supply and discharge pipes are not blocked

If necessary clean the discharge pipe3 Check the tightness of the flue gas system4 Replace the tightness gaskets and if necessary any sections of pipe

until tightness is perfect

725 Checking the burner and cleaning the heat exchanger

1 Remove the air inlet flue on the venturi2 Loosen the gland on the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

Fig34

AD-0000088-01

4

1

2

3

Fig35 Removing the fan

AD-3001178-01

1

3

4

2

5

7 Maintenance

40 Gas 120 ACE 7717202 - v03 - 24062019

6 Remove the front plate from the heat exchanger7 Carefully lift the front plate including the burner and fan away from

the heat exchanger

8 Use a vacuum cleaner fitted with a special endpiece (accessory) to clean the top part of the heat exchanger (combustion chamber)

9 Vacuum again without the top brush on the end piece10 Clean the lower section of the heat exchanger with the special

cleaning blade (accessory)11 Check (eg using a mirror) whether any visible contamination has

been left behind If it has remove it with the vacuum cleaner12 Check that the burner cover of the dismantled burner is free from

cracks andor damage If not replace the burnerServicing the burner is usually not necessary it is self-cleaning Use compressed air to carefully blow away any dust

13 Reassemble the unit in reverse order

CautionRemember to reconnect the fan plugCheck that the gasket is correctly positioned between the mixing elbow and the heat exchanger (the gasket must lie absolutely flat in the appropriate groove to ensure that no gas can leak)Tighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the front plate nuts with a torque wrench to the firmness of 10 Nm

14 Open the gas supply and switch the power supply to the boiler back on

Fig36 Removing the front plate fan and burner

AD-3001179-01

6

7

Fig37 Cleaning the heat exchanger

AD-3001180-01

10

8 9

12

11

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 41

726 Checking the non-return valve

1 Remove the air inlet pipe from the venturi2 Unscrew the gland of the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

6 Dismantle the fan7 Remove the fan together with the gas valve unit8 Inspect the non-return valve and replace it in the event of a defect or

damage or if the maintenance kit contains a non-return valve9 Reassemble in the reverse order

CautionRemember to reconnect the fan plugTighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the two fan nuts with a torque wrench to the firmness of 38 Nm

Fig38 Disconnecting the fan

AD-3001178-01

1

3

4

2

5

Fig39 Checking the non-return valve

AD-3001181-01

2x

68

7

9

7 Maintenance

42 Gas 120 ACE 7717202 - v03 - 24062019

8 Decommissioning

81 Decommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

To switch off the boiler temporarily or permanently proceed as follows

1 Switch the boiler off2 Cut the electrical power to the boiler3 Close the gas valve on the boiler4 Drain the central heating system or ensure frost protection5 Close the door of the boiler to prevent air circulating inside it6 Remove the pipe connecting the boiler to the chimney and close the

nozzle with a plug

82 Recommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

Should it prove necessary to carry out the recommissioning of the boiler proceed as follows

1 Re-establish electrical power to the boiler2 Fit and check the flue gas pipe3 Fill the siphon with water4 Fill the central heating system5 Open the boiler gas valve6 Start up the boiler

8 Decommissioning

7717202 - v03 - 24062019 Gas 120 ACE 43

9 Disposal and recyclingCautionOnly qualified professionals are permitted to remove and dispose of the boiler in accordance with local and national regulations

If you need to remove the boiler proceed as follows

1 Switch off the boiler2 Cut the power supply to the boiler3 Close the main gas valve4 Close the water mains5 Close the gas valve on the boiler6 Drain the installation7 Remove the airflue gas pipes8 Disconnect all pipes9 Dismantle the boiler

Fig40

MW-3000179-03

9 Disposal and recycling

44 Gas 120 ACE 7717202 - v03 - 24062019

10 Environmental

101 Energy savings

Energy-saving advice

Do not block ventilation outletsDo not cover the radiators Do not hang curtains in front of the radiatorsInstall reflective panels behind the radiators to prevent heat lossesInsulate the pipes in rooms that are not heated (cellars and lofts)Close the radiators in rooms not in useDo not run hot (or cold) water pointlesslyInstall an energy-saving shower head which can save up to 40 energyTake showers rather than baths A bath consumes twice as much water and energy

102 Room thermostat and settings

Various models of room thermostat are available The type of thermostat used and the parameter selected impact total energy consumption

A modulating regulator which may be combined with thermostatic valves is eco-friendly in terms of energy and offers an excellent level of comfort This combination allows you to set the temperature separately for each room However do not install thermostatic radiator valves in the room in which the room thermostat is locatedComplete opening and closing of the thermostatic radiator valves causes undesirable variations in temperature Therefore these must be openedclosed progressivelySet the room thermostat to a temperature of approximately 20degC to reduce heating costs and energy consumptionLower the thermostat setting to approximately 16degC at night or when you are not at home This reduces heating costs and energy consumptionLower the thermostat setting well before airing the roomsSet the water temperature to a lower level in summer than in winter (eg 60degC and 80degC respectively) when an ONOFF thermostatis usedWhen clock thermostats and programmable thermostats are to be set do not forget to take any holidays and days when no one is at home into account

10 Environmental

7717202 - v03 - 24062019 Gas 120 ACE 45

11 Warranty

111 General

We would like to thank you for buying one of our appliances and for your trust in our productIn order to ensure continued safe and efficient operation we recommend that the product is regularly inspected and maintainedYour installer and our service department can assist with this

112 Terms of warranty

The following provisions do not affect the application in favour of the buyer of the legal provisions with regard to hidden defects that are applicable in the buyers countryThis appliance comes with a warranty that covers all manufacturing faults the warranty period will commence on the date of purchase stated on the installers invoiceThe warranty period is stated in our price listAs a manufacturer we can by no means be held liable if the appliance is used incorrectly is poorly maintained or not maintained at all or is not installed correctly (it is your responsibility to ensure that installation is carried out by a qualified installer)In particular we cannot be held liable for material damage intangible losses or physical injury resulting from an installation that does not comply with

Legal or regulatory requirements or provisions laid down by the local authoritiesNational or local regulations and special provisions relating to the installationOur manuals and installation instructions in particular in terms of regular maintenance of the appliances

Our warranty is limited to the replacement or repair of the parts found to be defective by our technical services team excluding labour transfer and transport costsOur warranty does not cover replacement or repair costs for parts that may become defective due to normal wear incorrect usage the intervention of unqualified third parties inadequate or insufficient supervision or maintenance a mains supply that is not appropriate or the use of unsuitable or poor quality fuelSmaller parts such as motors pumps electrical valves etc are guaranteed only if these parts have never been dismantledThe rights established in European Directive 9944EEC implemented by legal decree No 24 of 2 February 2002 and published in Official Journal No 57 of 8 March 2002 remain in force

11 Warranty

46 Gas 120 ACE 7717202 - v03 - 24062019

12 Spare parts

121 General

If inspection or maintenance work bring to light the need to replace a component in the boilerProvide the reference number given in the spare parts list when ordering a spare part

CautionOnly genuine spare parts may be used

122 Spare parts lists

1221 Exchanger

Fig41

MW-6000743-01

811x

7

7

4

2

16

3

10

119

65

1

13

12

18

14

19

15

18

17

Tab27

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

1 7699615 Complete exchanger x 1 7699614 Complete exchanger x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 47

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

2 S101564 Exchanger front plate x x x3 S54731 Exchanger inspection hatch insulation x x x4 S57241 Exchanger inspection hatch gasket x x x5 S100052 M4x10 self-locking screw (x20) x x x6 S54754 FURQ65 burner x 6 S57477 FURQ85 burner x x7 7623837 Set of 10 k NTC sensors x x x8 S54755 M6 nut (x20) x x x9 7659755 M4x10 screw (x10) x x x10 S53489 Electrode gasket (x10) x x x11 7692359 Ignition electrode x x x12 7631936 Flue gas flow pipe diameter 100 mm x x x13 7624643 NTC 2x20 k flue gas sensor with gasket x x x14 7624619 Ignition transformer x x x15 S56987 ZP M6x16 screw (x10) x x x16 7616253 Valve with support x x x17 7680596 Exchanger bracket x 17 7673616 Exchanger bracket x x18 7701752 Gasket diameter 100 mm (x5) x x x19 7632708 Earth electric clip (x2) x x x

1222 Gas circuit

Fig42

MW-6000744-01

3

2

5

6

9

4

8

10

7

12

11

1

14

13

13

12 Spare parts

48 Gas 120 ACE 7717202 - v03 - 24062019

Tab28Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 S101543 Silencer x 1 S101520 Silencer x 1 S101578 Silencer x2 S54777 Venturi gasket (x5) x 2 S59215 Gas valve-venturi gasket (x5) x 2 S101593 Gaskets (kit) x3 S101726 Fan RG 1481200-3633 x x 3 S100036 Fan RG 148 1200-3633-010202 x4 S101596 Gas valve VK4115v1386 x 4 S101597 Gas valve VK4115vb1012 x 4 S101510 Gas valve GB-ND 057 XP x5 S54766 Venturi x 5 S57488 Venturi x 5 S101595 Venturi VMS 45900450-010 x6 S59215 Gas valve-venturi gasket (x5) x x 7 S57827 Gas valve unit flange x8 S57828 268x22x25 O-ring (x5) x9 S101631 Diaphragm x10 7616249 Flue gas sensor cap (5x) x x x11 S56155 238x177x2 gasket (x20) x x x12 95760050 C HC M4-12 88 ZN3 screw x x x13 S48512 M5-10 screw (x10) x x x14 S101590 Silencer retaining clip x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 49

1223 Hydraulic circuit

Fig43

MW-6000745-01

1

14

6

9

11

8

12

5

37

9

10

2

4

13

Tab29Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7680598 Complete flow pipe x 1 7670807 Complete flow pipe x x2 7672557 Complete return pipe x x x3 7674076 Complete gas pipe x 3 7680434 Complete gas pipe x 3 7670720 Complete gas pipe x4 7698560 HUBA G38 pressure gauge x x x5 94994712 PVC pipe diameter 16x12 x x x6 7699357 Water deflector diameter 100 mm x x x7 94902073 Drain valve 12 x x x8 94918138 Air vent x x x9 95013064 44x32x2 mm green gasket x x x10 95013060 24x17x2 mm green gasket x x 10 95013062 30x21x12 mm green gasket x11 7692329 Condensate hose x x x13 7706103 Assembled siphon height 160 mm x 13 7706038 Assembled siphon height 250 mm x x14 7103731 Condensate drain pan gasket x x x

12 Spare parts

50 Gas 120 ACE 7717202 - v03 - 24062019

1224 Boiler body

Fig44

MW-6000746-01

2

2

1

6

3

34

5

4

Tab30Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7686377 Assembled frame x 1 7686139 Assembled frame x x2 7679958 117x34 handle diameter 65 mm x x x3 7676037 Wheel x x x4 7688301 Frame lateral gasket x 4 7688008 Frame lateral gasket x x5 7688353 Front panel gasket x 5 7688007 Front panel gasket x x6 7693874 R4-05 front panel lock x x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 51

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

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AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

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1070 Puidoux-Gare

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Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

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F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

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Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

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Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

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EST Systems Oy

Kujamatintie 16

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Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

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Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

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F +39 02 360 285 83

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Remeha SRL

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Scara 5 Ap 53 Judejul Cluj

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Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 24: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

Fig12

MW-3000014-2

53 Transport

Transport the boiler pallet with a manual or electric pallet truck

54 Unpacking and preparing the boiler

Caution

Wear gloves to handle the boilerTransport the boiler pallet with a manual or electric pallet truckUse carrying bars (not provided) to move the boiler

ImportantTo fit the boiler position the pallet with the package 25 m in front of the desired location for the installation This distance is required to allow the boiler to be removed from its pallet

1 Cut the packaging2 Remove the packaging from the boiler but leave the boiler on the

shipping pallet

ImportantThe documentation bag (user manual + accessories) is contained in the protective block

Fig13

MW-6000736-01

Manual

11

12

5 Installation

24 Gas 120 ACE 7717202 - v03 - 24062019

3 Using a long tool unlock and remove the boilers front door Disconnect the earth wire

4 Remove the mounting bolts from the unloading ramps and the boiler (4 bolts at the rear and 4 bolts at the front)

5 Pull out the unloading ramps and turn them over6 Align the ramps with the rear castor wheels on the boiler

Fig14

MW-6000761-01

3

3

Fig15

MW-6000737-01

4

4

Fig16

MW-6000738-01

5

5

6

6

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 25

7 Lock the ramps correctly onto the pallet8 Screw the unloading ramps onto the pallet9 Fold down the ends of the ramp so that they rest on the ground

10 Tilt the boiler backwards until it is resting on the castor wheels then remove it from the pallet

11 Recycle the pallet

Fig17

MW-6000770-01

9

9

8

7

Fig18

MW-6000739-02

600

350

11

10

550

5 Installation

26 Gas 120 ACE 7717202 - v03 - 24062019

12 Level the boiler using the adjustable feet(1) Factory setting 30 mm adjustment range 20 to 40 mm

CautionThe rear castor wheels must no longer be in contact with the ground

55 Hydraulic connections

551 Water treatment

In many cases the boiler and the heating system can be filled with mains water without treating the water

CautionDo not add any chemical products to the heating water without first consulting a water treatment specialist For example antifreeze water softeners products to increase or reduce the pH value chemical additives andor inhibitors These may cause faults in the boiler and damage the heat exchanger

Important

Flush the installation with at least 3 times the volume of water contained in the heating systemFlush the DHW circuit with at least 20 times its volume of water

The water in the installation must comply with following specifications

Tab19 Installation water specifications Initial commissioning Concentration (top up)Degree of acidity (untreated water) pH 65 - 85 65 - 85

Degree of acidity (treated washyter) pH 70 - 90 70 - 90

Conductivity at 25degC μScm le 500 le 500Chlorides mglitre le 50 le 50Other components mglitre lt 1 lt 1

Total water hardnessdegf 5 - 35 le 15degdH 28 - 200 le 85mmollitre(1) 05 - 35 lt 15

(1) Flow temperature less than 90degC mdash Maximum hardness 150 mmoll

Fig19

MW-6000773-01

(1)

12

12

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 27

ImportantIf water treatment proves necessary Remeha recommends the following manufacturers

CillitClimalifeFernoxPermoSentinel

552 Flushing new installations and installations less than 6 months old

Before filling the heating installation it is essential to remove any debris (copper caulking soldering flux) from the installation

1 Clean the installation with a powerful universal cleaner2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

553 Flushing an existing installation

Before filling the heating installation it is essential to remove any sludge deposits which have accumulated in the heating circuit over the years

1 Remove any sludge from the installation2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

554 Connecting the heating circuit

ImportantAbide by the information shown in the hydraulic diagrams

The pipes are not provided

Caution

The heating pipe must be mounted in accordance with the provisions applicableIf installing stop valves position the filldrain valve and the expansion vessel between the stop valves and the boilerAlways install a safety valve calibrated to a maximum of 4 bar on the heating circuit The safety valve can be connected to a venting pot The safety valve must not be used to drain the heating circuitIt is recommended to install a sludge collector on all installations

SeeIf fitting with a hydraulic kit (low-loss header or plate heat exchanger) refer to the kit manual

555 Connecting the condensate discharge pipe

Use a neutralisation station to achieve a pH value of more than 65 (in accordance with prevailing regulations)Discharge the condensates directly into the mains drainage system via a siphon In view of the acidity level (pH 25 to 3) only condensate discharge pipes made from compatible plastic should be used

5 Installation

28 Gas 120 ACE 7717202 - v03 - 24062019

The condensate discharge pipe is located at the rear of the boiler

Do not block the condensate discharge pipeTilt the discharge pipe by at least 30 mm per metre and make sure there are no low points that could cause the accumulation of water or deposits Maximum horizontal length 5 metresDo not drain condensation water into a roof gutterConnect the condensate discharge pipe in accordance with prevailing standardsIt is preferable to use the condensate neutralisers recommended by the manufacturer of the boiler

1 Connect a plastic hose to the condensate discharge outlet (DN 22)2 Insert the other end of the hose into a waste water discharge outlet

556 Filling the siphon

DangerIf operating with the siphon empty combustion products will escape into the premises in which the boiler is installed

1 Pour water into the flue gas pipe (central pipe) until it flows out of the condensate discharge pipe

56 Gas connection

Danger

Close the main gas valve before starting work on the gas pipesThe diameters of the pipes must be defined in accordance with the standards in force in your countryConnect the gas pipe in accordance with prevailing standards and regulationsEnsure that there is no dust in the gas pipe

The gas pipes are not providedIn old gas networks we recommend fitting a gas filter with a low pressure drop upstream of this point

1 Clean the gas supply pipe2 Remove the anti-dust plug located on the boilers gas inlet3 Mount a gas stop valve (not provided) on the boilers gas inlet4 Connect the gas inlet pipe to the gas stop valve

Fig20

MW-2000825-01

pH gt 65

Oslash32A

Fig21

MW-6000742-02

1

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 29

5 Close the gas supply valve before testing the pressure on the gas supply pipe to avoid damage caused by excessive pressure on the gas regulator Decompress before reopening the valve

561 Gas supply

Before mounting check that the gas meter has sufficient capacity (in m3h) To do this you should bear in mind the consumption of all appliances If the capacity of the gas meter is too low inform the gas supply companyThe boilers are preset to run on G20 gas (gas H) and can be adapted to run with the following gases

G31 (gas P)G3031 (gas BP)

ImportantTo use a different type of gas contact an approved assistance service

57 Air supplyflue gas outlet connections

571 Classification

The discharge and intake pipes must be certified for the appropriate configuration and must meet the requirements of the prevailing installation standards in the country

Tab20 Configurations and recommendations for the flue systemConfiguration Principle DescriptionB23B23P

AD-3001055-01

Connection to a chimney using a CE connection kit (single pipe in a flue comshybustion air taken from the boiler room)Follow the connection instructions and adhere to the recommended maximum pipe lengthsComply with the applicable regulations governing ventilation and cross-secshytions for room aeration vents

B33

MW-5000925-1

Room-ventilated version

Without down-draught diverterJoint flue gas discharge via the roof with guaranteed natural draft (at all times underpressure in the joint discharge duct)Flue gas discharge rinsed with air air from the installation area (special conshystruction)The IP rating of the boiler is lowered to IP20

C13C13X

AD-3001056-01

Airflue gas connection using concentric pipes to a horizontal terminal (so-called forced flue) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

5 Installation

30 Gas 120 ACE 7717202 - v03 - 24062019

Configuration Principle DescriptionC33C33X

AD-3001057-01

Airflue gas connection using concentric pipes to a vertical terminal (roof outshylet) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

C43C43X

MW-2000822-01

Airflue gas connection via concentric pipes to a common pipe supplying severshyal heating applicationsThe common pipe has a roof connection to a vertical terminal that draws in the air required for combustion and discharges the combustion productsUse of CE-certified system

C53

AD-3001058-02

Airflue gas connection via separate pipes lead to two separate terminals One draws in the air required for combustion and the other discharges the combusshytion productsThe outlets may be in different pressure zonesDo not install the air supply and discharge on opposing surfacesUse of CE-certified system

C63C63X

The installer is responsible for installing a CE-certified discharge system that complies with the manufacturers recommendations (temperature flow pressure etc)

The maximum pressure drop in the pipes ΔP must not exceed the values given in the table below The pipes must be certified for this type of use and for a temperature of more than 100 degC The terminal part of the flue gas pipe must be certified as complying with the EN 1856-1 StandardIf installing discharge and intake pipes not supplied by Remeha these must be certified for the intended type of use and their maximum pressure drop must be compliant

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 31

Configuration Principle DescriptionC83C83X

MW-2000823-01

Flue gas connection to a collective flue for sealed boilers The air supply is inshydividual via a terminal coming from outside the buildingA concentric pipe can be used to both supply the boiler with combustion air and connect to the collective flue gas discharge systemThe chimney or flue gas pipe must be suitable for such use and the system CE certified

C93C93X

AD-3001059-01

Airflue gas connection via concentric pipes in an existing chimney The air supshyply in the chimney may be installed via the existing channel or via tubing Flue gas discharge and air intake are via a vertical terminal at the top of the chimney

The air intake and discharge must be close enough to be in the same pressure zoneThe minimum cross-sections are shown in the table belowThe flue system must be suitable for the intended use and the system CE certishyfied

Tab21 Minimum dimensions of the duct or pipe C93 C93X

Version (D) Without air supply With air supplyRigid 80 mm Oslash 130 mm 130 x 130 mm Oslash 140 mm 130 x 130 mmRigid 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmRigid 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmFlexible 80 mm Oslash 130 mm 130 x 130 mm Oslash 145 mm 130 x 130 mmFlexible 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmFlexible 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmConcentric 80125 mm Oslash 145 mm 145 x 145 mm Oslash 145 mm 145 x 145 mmConcentric 100150 mm Oslash 170 mm 170 x 170 mm Oslash 170 mm 170 x 170 mmConcentric 150200 mm Oslash 270 mm 270 x 270 mm - -

ImportantThe duct must comply with the air density requirements of the local regulations

Important

Only original components are authorised for connection to the boiler and for the terminalThe clear section must comply with the standardThe chimney must be swept before installing the discharge flue

CautionEnsure that the flue gas discharge pipes are securely attached to the wall with suitable retaining flanges to prevent any damage and guarantee the tightness of every gasket in the circuit

CautionThe minimum gradient of the condensates discharge pipe from the boiler to the waste water discharge must be 1 cm per linear metre

Fig22 Minimum dimensions of the duct or pipe C93 C93X

AD-3000330-03

D

Oslash

D

5 Installation

32 Gas 120 ACE 7717202 - v03 - 24062019

572 Lengths of the airflue gas pipes

The maximum lengths (Lmax) given in the table are valid for pipes in which the horizontal sections do not exceed one metre in total For each additional metre of horizontal pipe a multiplication coefficient of 12 must be applied when calculating the total length L The total length L is calculated by adding the lengths of the straight airflue gas pipes and the equivalent lengths of the other componentsAlways ensure that L is less than Lmax

ImportantFor the list of flue gas system accessories and the equivalent lengths refer to the current price list

Tab22 Lengths of the airflue gas pipes in metresConfigurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 100 mm 26 24 19

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 110 mm 40 40 40

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 110 mm 295 24 175

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 80125 mm - - -

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 100150 mm 9 8 59

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 80125 mm - - -

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 100150 mm 115 10 94

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 80125 mm over 2x80 mm

- - -

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 100150 mm over 2x100 mm

23 175 Air 11Flue gases 5

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm110 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 110150 mm110 mm

16 132 10

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 33

Configurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 110150 mm110 mm

165 135 94

Tab23 PPS pipe reduction for each element used

Diameter 80 mmSingle

80125 mmConcentric

100 mmSingle

100150 mmConcentric

45deg elbow 12 m 10 m 11 m 10 m87deg elbow 19 m 15 m 20 m 37 mStraight inspection tube 03 m 06 m - 10 m87deg inspection elbow 19 m 20 m 48 m -Inspection T 42 m 27 m 56 m 25 mInspection tube for flexible pipe 03 m - 05 m -

573 Dimensions of flue gas outlet pipe

WarningThe pipes connected to the flue gas adapter must satisfy the following dimension requirements

d1 External dimensions of flue gas outlet pipe

Tab24 Dimensions of pipe d1 (min-max)80 mm 793 - 803 mm100 mm 993 - 1003 mm150 mm 149 - 151 mm

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipe

Tab25 Dimensions of pipe d1 (min-max) D1 (min-max)8080 mm 793 - 803 mm 793 - 803 mm100100 mm 993 - 1003 mm 993 - 1003 mm110110 mm 1093 - 1103 mm 1093 - 1103 mm150150 mm 149 - 151 mm 149 - 151 mm

Fig23 Dimensions of open connection

AD-3001094-01

oslashd1

Fig24 Dimensions of parallel connection

AD-3000963-01

oslashd1 oslashD1

5 Installation

34 Gas 120 ACE 7717202 - v03 - 24062019

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipeL1 Length difference between flue gas outlet pipe and air supply pipe

Tab26 Dimensions of pipe d1 (min-max) D1 (min-max) L1

(1) (min-max)80125 mm 793 - 803 mm 124 - 1255 mm 0 - 15 mm100150 mm 993 - 1003 mm 149 - 151 mm 0 - 15 mm

(1) Shorten the inner pipe if the length difference is too great

574 Connection to the flue gas pipe

At delivery the flue gas outletair supply is fixed inside the boiler

1 Using a long tool unlock and remove the boilers front door2 Remove the boiler outlet

3 Two options for connection to the flue gas pipe

Option Description3a Connection to a vertical flue gas pipe Position the flue gas

outletair supply directly at the boiler outlet3b Connection to a horizontal flue gas pipe Insert an outlet elshy

bow ( not supplied) before the flue gas outletair supply

ImportantLubricate the gaskets on the flue system during assembly

Fig25 Dimensions of concentric connection

AD-3000962-01

oslashd1

L1

oslashD1

Fig26

MW-2000867-02

1

2

1

Fig27

3a 3b

MW-2000868-01

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 35

Fastening the coaxial pipes Fasten the intake pipes with two galvanised Oslash 42 mm screws with a maximum length of 16 mm

CautionBefore fixing the screws make sure that at least 45 cm of pipe is inserted in the gasket of the other pipe

WarningGuarantee a minimum pipe slope towards the boiler of at least 5 cm per metre

Fig28 Fastening the coaxial pipes using screws

BO-0000030

16 mm

5 Installation

36 Gas 120 ACE 7717202 - v03 - 24062019

6 Operation

61 Settings

To configure the installation and use the boiler please refer to the control unit manual

6 Operation

7717202 - v03 - 24062019 Gas 120 ACE 37

7 Maintenance

71 General

We recommend having the boiler inspected and serviced at regular intervals

CautionDo not neglect to service the boiler Contact a qualified professional or take out a maintenance contract for the obligatory annual servicing of the boilerFailure to service the appliance voids the warranty

Danger of electric shockBefore service work is started the boiler has to be de-energised and secured from accidentally being switched back on

CautionHave an inspection carried out and the flues swept at least once a year or more depending on the regulations in force in your country

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

CautionAfter maintenance or repair work check the entire heating system to ensure that there are no leaks

CautionOnly genuine spare parts may be used

72 Specific maintenance operations

721 Cleaning the siphon

1 Remove the flue gas outlet discharge pipe

2 Remove the condensate discharge pipe 3 Remove the screw from the siphon

Fig29

1

MW-2000903-01

Fig30

2

3

MW-2000904-01

7 Maintenance

38 Gas 120 ACE 7717202 - v03 - 24062019

4 Pull the siphon downwards to disengage it and pivot it to release it

5 Flush the siphon 6 Drain the siphon

7 Fill the siphon with clean water up to the mark 8 Lubricate the siphon gasket9 Re-engage the siphon and refit the screw

10 Refit the two pipes

722 Checking the ionisation current

1 Check the ionisation current at full load and at low loadThe value is stable after 1 minute

2 Clean or replace the ionisationignition electrode if the value is lower than 4 microA

Fig31

4

90deg

MW-2000905-01

Fig32

MW-2000843-01

Fig33

MW-2000844-01

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 39

723 Replace the ionizationignition electrode

The ionizationignition electrode must be replaced if

The ionization current is lt 4 microAThe electrode is damaged or worn

1 Remove the plug of the electrode from the igniter

ImportantThe ignition cable is fixed to the electrode and therefore may not be removed

2 Remove the two screws3 Remove the entire component4 Fit the new ionizationignition electrode with a new seal5 Reassemble the unit in the reverse order to disassembly

724 Servicing the forced flue connection pipes

1 Open the inspection hatches or remove the pipes2 Check that the air supply and discharge pipes are not blocked

If necessary clean the discharge pipe3 Check the tightness of the flue gas system4 Replace the tightness gaskets and if necessary any sections of pipe

until tightness is perfect

725 Checking the burner and cleaning the heat exchanger

1 Remove the air inlet flue on the venturi2 Loosen the gland on the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

Fig34

AD-0000088-01

4

1

2

3

Fig35 Removing the fan

AD-3001178-01

1

3

4

2

5

7 Maintenance

40 Gas 120 ACE 7717202 - v03 - 24062019

6 Remove the front plate from the heat exchanger7 Carefully lift the front plate including the burner and fan away from

the heat exchanger

8 Use a vacuum cleaner fitted with a special endpiece (accessory) to clean the top part of the heat exchanger (combustion chamber)

9 Vacuum again without the top brush on the end piece10 Clean the lower section of the heat exchanger with the special

cleaning blade (accessory)11 Check (eg using a mirror) whether any visible contamination has

been left behind If it has remove it with the vacuum cleaner12 Check that the burner cover of the dismantled burner is free from

cracks andor damage If not replace the burnerServicing the burner is usually not necessary it is self-cleaning Use compressed air to carefully blow away any dust

13 Reassemble the unit in reverse order

CautionRemember to reconnect the fan plugCheck that the gasket is correctly positioned between the mixing elbow and the heat exchanger (the gasket must lie absolutely flat in the appropriate groove to ensure that no gas can leak)Tighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the front plate nuts with a torque wrench to the firmness of 10 Nm

14 Open the gas supply and switch the power supply to the boiler back on

Fig36 Removing the front plate fan and burner

AD-3001179-01

6

7

Fig37 Cleaning the heat exchanger

AD-3001180-01

10

8 9

12

11

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 41

726 Checking the non-return valve

1 Remove the air inlet pipe from the venturi2 Unscrew the gland of the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

6 Dismantle the fan7 Remove the fan together with the gas valve unit8 Inspect the non-return valve and replace it in the event of a defect or

damage or if the maintenance kit contains a non-return valve9 Reassemble in the reverse order

CautionRemember to reconnect the fan plugTighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the two fan nuts with a torque wrench to the firmness of 38 Nm

Fig38 Disconnecting the fan

AD-3001178-01

1

3

4

2

5

Fig39 Checking the non-return valve

AD-3001181-01

2x

68

7

9

7 Maintenance

42 Gas 120 ACE 7717202 - v03 - 24062019

8 Decommissioning

81 Decommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

To switch off the boiler temporarily or permanently proceed as follows

1 Switch the boiler off2 Cut the electrical power to the boiler3 Close the gas valve on the boiler4 Drain the central heating system or ensure frost protection5 Close the door of the boiler to prevent air circulating inside it6 Remove the pipe connecting the boiler to the chimney and close the

nozzle with a plug

82 Recommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

Should it prove necessary to carry out the recommissioning of the boiler proceed as follows

1 Re-establish electrical power to the boiler2 Fit and check the flue gas pipe3 Fill the siphon with water4 Fill the central heating system5 Open the boiler gas valve6 Start up the boiler

8 Decommissioning

7717202 - v03 - 24062019 Gas 120 ACE 43

9 Disposal and recyclingCautionOnly qualified professionals are permitted to remove and dispose of the boiler in accordance with local and national regulations

If you need to remove the boiler proceed as follows

1 Switch off the boiler2 Cut the power supply to the boiler3 Close the main gas valve4 Close the water mains5 Close the gas valve on the boiler6 Drain the installation7 Remove the airflue gas pipes8 Disconnect all pipes9 Dismantle the boiler

Fig40

MW-3000179-03

9 Disposal and recycling

44 Gas 120 ACE 7717202 - v03 - 24062019

10 Environmental

101 Energy savings

Energy-saving advice

Do not block ventilation outletsDo not cover the radiators Do not hang curtains in front of the radiatorsInstall reflective panels behind the radiators to prevent heat lossesInsulate the pipes in rooms that are not heated (cellars and lofts)Close the radiators in rooms not in useDo not run hot (or cold) water pointlesslyInstall an energy-saving shower head which can save up to 40 energyTake showers rather than baths A bath consumes twice as much water and energy

102 Room thermostat and settings

Various models of room thermostat are available The type of thermostat used and the parameter selected impact total energy consumption

A modulating regulator which may be combined with thermostatic valves is eco-friendly in terms of energy and offers an excellent level of comfort This combination allows you to set the temperature separately for each room However do not install thermostatic radiator valves in the room in which the room thermostat is locatedComplete opening and closing of the thermostatic radiator valves causes undesirable variations in temperature Therefore these must be openedclosed progressivelySet the room thermostat to a temperature of approximately 20degC to reduce heating costs and energy consumptionLower the thermostat setting to approximately 16degC at night or when you are not at home This reduces heating costs and energy consumptionLower the thermostat setting well before airing the roomsSet the water temperature to a lower level in summer than in winter (eg 60degC and 80degC respectively) when an ONOFF thermostatis usedWhen clock thermostats and programmable thermostats are to be set do not forget to take any holidays and days when no one is at home into account

10 Environmental

7717202 - v03 - 24062019 Gas 120 ACE 45

11 Warranty

111 General

We would like to thank you for buying one of our appliances and for your trust in our productIn order to ensure continued safe and efficient operation we recommend that the product is regularly inspected and maintainedYour installer and our service department can assist with this

112 Terms of warranty

The following provisions do not affect the application in favour of the buyer of the legal provisions with regard to hidden defects that are applicable in the buyers countryThis appliance comes with a warranty that covers all manufacturing faults the warranty period will commence on the date of purchase stated on the installers invoiceThe warranty period is stated in our price listAs a manufacturer we can by no means be held liable if the appliance is used incorrectly is poorly maintained or not maintained at all or is not installed correctly (it is your responsibility to ensure that installation is carried out by a qualified installer)In particular we cannot be held liable for material damage intangible losses or physical injury resulting from an installation that does not comply with

Legal or regulatory requirements or provisions laid down by the local authoritiesNational or local regulations and special provisions relating to the installationOur manuals and installation instructions in particular in terms of regular maintenance of the appliances

Our warranty is limited to the replacement or repair of the parts found to be defective by our technical services team excluding labour transfer and transport costsOur warranty does not cover replacement or repair costs for parts that may become defective due to normal wear incorrect usage the intervention of unqualified third parties inadequate or insufficient supervision or maintenance a mains supply that is not appropriate or the use of unsuitable or poor quality fuelSmaller parts such as motors pumps electrical valves etc are guaranteed only if these parts have never been dismantledThe rights established in European Directive 9944EEC implemented by legal decree No 24 of 2 February 2002 and published in Official Journal No 57 of 8 March 2002 remain in force

11 Warranty

46 Gas 120 ACE 7717202 - v03 - 24062019

12 Spare parts

121 General

If inspection or maintenance work bring to light the need to replace a component in the boilerProvide the reference number given in the spare parts list when ordering a spare part

CautionOnly genuine spare parts may be used

122 Spare parts lists

1221 Exchanger

Fig41

MW-6000743-01

811x

7

7

4

2

16

3

10

119

65

1

13

12

18

14

19

15

18

17

Tab27

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

1 7699615 Complete exchanger x 1 7699614 Complete exchanger x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 47

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

2 S101564 Exchanger front plate x x x3 S54731 Exchanger inspection hatch insulation x x x4 S57241 Exchanger inspection hatch gasket x x x5 S100052 M4x10 self-locking screw (x20) x x x6 S54754 FURQ65 burner x 6 S57477 FURQ85 burner x x7 7623837 Set of 10 k NTC sensors x x x8 S54755 M6 nut (x20) x x x9 7659755 M4x10 screw (x10) x x x10 S53489 Electrode gasket (x10) x x x11 7692359 Ignition electrode x x x12 7631936 Flue gas flow pipe diameter 100 mm x x x13 7624643 NTC 2x20 k flue gas sensor with gasket x x x14 7624619 Ignition transformer x x x15 S56987 ZP M6x16 screw (x10) x x x16 7616253 Valve with support x x x17 7680596 Exchanger bracket x 17 7673616 Exchanger bracket x x18 7701752 Gasket diameter 100 mm (x5) x x x19 7632708 Earth electric clip (x2) x x x

1222 Gas circuit

Fig42

MW-6000744-01

3

2

5

6

9

4

8

10

7

12

11

1

14

13

13

12 Spare parts

48 Gas 120 ACE 7717202 - v03 - 24062019

Tab28Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 S101543 Silencer x 1 S101520 Silencer x 1 S101578 Silencer x2 S54777 Venturi gasket (x5) x 2 S59215 Gas valve-venturi gasket (x5) x 2 S101593 Gaskets (kit) x3 S101726 Fan RG 1481200-3633 x x 3 S100036 Fan RG 148 1200-3633-010202 x4 S101596 Gas valve VK4115v1386 x 4 S101597 Gas valve VK4115vb1012 x 4 S101510 Gas valve GB-ND 057 XP x5 S54766 Venturi x 5 S57488 Venturi x 5 S101595 Venturi VMS 45900450-010 x6 S59215 Gas valve-venturi gasket (x5) x x 7 S57827 Gas valve unit flange x8 S57828 268x22x25 O-ring (x5) x9 S101631 Diaphragm x10 7616249 Flue gas sensor cap (5x) x x x11 S56155 238x177x2 gasket (x20) x x x12 95760050 C HC M4-12 88 ZN3 screw x x x13 S48512 M5-10 screw (x10) x x x14 S101590 Silencer retaining clip x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 49

1223 Hydraulic circuit

Fig43

MW-6000745-01

1

14

6

9

11

8

12

5

37

9

10

2

4

13

Tab29Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7680598 Complete flow pipe x 1 7670807 Complete flow pipe x x2 7672557 Complete return pipe x x x3 7674076 Complete gas pipe x 3 7680434 Complete gas pipe x 3 7670720 Complete gas pipe x4 7698560 HUBA G38 pressure gauge x x x5 94994712 PVC pipe diameter 16x12 x x x6 7699357 Water deflector diameter 100 mm x x x7 94902073 Drain valve 12 x x x8 94918138 Air vent x x x9 95013064 44x32x2 mm green gasket x x x10 95013060 24x17x2 mm green gasket x x 10 95013062 30x21x12 mm green gasket x11 7692329 Condensate hose x x x13 7706103 Assembled siphon height 160 mm x 13 7706038 Assembled siphon height 250 mm x x14 7103731 Condensate drain pan gasket x x x

12 Spare parts

50 Gas 120 ACE 7717202 - v03 - 24062019

1224 Boiler body

Fig44

MW-6000746-01

2

2

1

6

3

34

5

4

Tab30Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7686377 Assembled frame x 1 7686139 Assembled frame x x2 7679958 117x34 handle diameter 65 mm x x x3 7676037 Wheel x x x4 7688301 Frame lateral gasket x 4 7688008 Frame lateral gasket x x5 7688353 Front panel gasket x 5 7688007 Front panel gasket x x6 7693874 R4-05 front panel lock x x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 51

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

E toimistoestsystemsfi

Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 25: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

3 Using a long tool unlock and remove the boilers front door Disconnect the earth wire

4 Remove the mounting bolts from the unloading ramps and the boiler (4 bolts at the rear and 4 bolts at the front)

5 Pull out the unloading ramps and turn them over6 Align the ramps with the rear castor wheels on the boiler

Fig14

MW-6000761-01

3

3

Fig15

MW-6000737-01

4

4

Fig16

MW-6000738-01

5

5

6

6

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 25

7 Lock the ramps correctly onto the pallet8 Screw the unloading ramps onto the pallet9 Fold down the ends of the ramp so that they rest on the ground

10 Tilt the boiler backwards until it is resting on the castor wheels then remove it from the pallet

11 Recycle the pallet

Fig17

MW-6000770-01

9

9

8

7

Fig18

MW-6000739-02

600

350

11

10

550

5 Installation

26 Gas 120 ACE 7717202 - v03 - 24062019

12 Level the boiler using the adjustable feet(1) Factory setting 30 mm adjustment range 20 to 40 mm

CautionThe rear castor wheels must no longer be in contact with the ground

55 Hydraulic connections

551 Water treatment

In many cases the boiler and the heating system can be filled with mains water without treating the water

CautionDo not add any chemical products to the heating water without first consulting a water treatment specialist For example antifreeze water softeners products to increase or reduce the pH value chemical additives andor inhibitors These may cause faults in the boiler and damage the heat exchanger

Important

Flush the installation with at least 3 times the volume of water contained in the heating systemFlush the DHW circuit with at least 20 times its volume of water

The water in the installation must comply with following specifications

Tab19 Installation water specifications Initial commissioning Concentration (top up)Degree of acidity (untreated water) pH 65 - 85 65 - 85

Degree of acidity (treated washyter) pH 70 - 90 70 - 90

Conductivity at 25degC μScm le 500 le 500Chlorides mglitre le 50 le 50Other components mglitre lt 1 lt 1

Total water hardnessdegf 5 - 35 le 15degdH 28 - 200 le 85mmollitre(1) 05 - 35 lt 15

(1) Flow temperature less than 90degC mdash Maximum hardness 150 mmoll

Fig19

MW-6000773-01

(1)

12

12

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 27

ImportantIf water treatment proves necessary Remeha recommends the following manufacturers

CillitClimalifeFernoxPermoSentinel

552 Flushing new installations and installations less than 6 months old

Before filling the heating installation it is essential to remove any debris (copper caulking soldering flux) from the installation

1 Clean the installation with a powerful universal cleaner2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

553 Flushing an existing installation

Before filling the heating installation it is essential to remove any sludge deposits which have accumulated in the heating circuit over the years

1 Remove any sludge from the installation2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

554 Connecting the heating circuit

ImportantAbide by the information shown in the hydraulic diagrams

The pipes are not provided

Caution

The heating pipe must be mounted in accordance with the provisions applicableIf installing stop valves position the filldrain valve and the expansion vessel between the stop valves and the boilerAlways install a safety valve calibrated to a maximum of 4 bar on the heating circuit The safety valve can be connected to a venting pot The safety valve must not be used to drain the heating circuitIt is recommended to install a sludge collector on all installations

SeeIf fitting with a hydraulic kit (low-loss header or plate heat exchanger) refer to the kit manual

555 Connecting the condensate discharge pipe

Use a neutralisation station to achieve a pH value of more than 65 (in accordance with prevailing regulations)Discharge the condensates directly into the mains drainage system via a siphon In view of the acidity level (pH 25 to 3) only condensate discharge pipes made from compatible plastic should be used

5 Installation

28 Gas 120 ACE 7717202 - v03 - 24062019

The condensate discharge pipe is located at the rear of the boiler

Do not block the condensate discharge pipeTilt the discharge pipe by at least 30 mm per metre and make sure there are no low points that could cause the accumulation of water or deposits Maximum horizontal length 5 metresDo not drain condensation water into a roof gutterConnect the condensate discharge pipe in accordance with prevailing standardsIt is preferable to use the condensate neutralisers recommended by the manufacturer of the boiler

1 Connect a plastic hose to the condensate discharge outlet (DN 22)2 Insert the other end of the hose into a waste water discharge outlet

556 Filling the siphon

DangerIf operating with the siphon empty combustion products will escape into the premises in which the boiler is installed

1 Pour water into the flue gas pipe (central pipe) until it flows out of the condensate discharge pipe

56 Gas connection

Danger

Close the main gas valve before starting work on the gas pipesThe diameters of the pipes must be defined in accordance with the standards in force in your countryConnect the gas pipe in accordance with prevailing standards and regulationsEnsure that there is no dust in the gas pipe

The gas pipes are not providedIn old gas networks we recommend fitting a gas filter with a low pressure drop upstream of this point

1 Clean the gas supply pipe2 Remove the anti-dust plug located on the boilers gas inlet3 Mount a gas stop valve (not provided) on the boilers gas inlet4 Connect the gas inlet pipe to the gas stop valve

Fig20

MW-2000825-01

pH gt 65

Oslash32A

Fig21

MW-6000742-02

1

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 29

5 Close the gas supply valve before testing the pressure on the gas supply pipe to avoid damage caused by excessive pressure on the gas regulator Decompress before reopening the valve

561 Gas supply

Before mounting check that the gas meter has sufficient capacity (in m3h) To do this you should bear in mind the consumption of all appliances If the capacity of the gas meter is too low inform the gas supply companyThe boilers are preset to run on G20 gas (gas H) and can be adapted to run with the following gases

G31 (gas P)G3031 (gas BP)

ImportantTo use a different type of gas contact an approved assistance service

57 Air supplyflue gas outlet connections

571 Classification

The discharge and intake pipes must be certified for the appropriate configuration and must meet the requirements of the prevailing installation standards in the country

Tab20 Configurations and recommendations for the flue systemConfiguration Principle DescriptionB23B23P

AD-3001055-01

Connection to a chimney using a CE connection kit (single pipe in a flue comshybustion air taken from the boiler room)Follow the connection instructions and adhere to the recommended maximum pipe lengthsComply with the applicable regulations governing ventilation and cross-secshytions for room aeration vents

B33

MW-5000925-1

Room-ventilated version

Without down-draught diverterJoint flue gas discharge via the roof with guaranteed natural draft (at all times underpressure in the joint discharge duct)Flue gas discharge rinsed with air air from the installation area (special conshystruction)The IP rating of the boiler is lowered to IP20

C13C13X

AD-3001056-01

Airflue gas connection using concentric pipes to a horizontal terminal (so-called forced flue) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

5 Installation

30 Gas 120 ACE 7717202 - v03 - 24062019

Configuration Principle DescriptionC33C33X

AD-3001057-01

Airflue gas connection using concentric pipes to a vertical terminal (roof outshylet) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

C43C43X

MW-2000822-01

Airflue gas connection via concentric pipes to a common pipe supplying severshyal heating applicationsThe common pipe has a roof connection to a vertical terminal that draws in the air required for combustion and discharges the combustion productsUse of CE-certified system

C53

AD-3001058-02

Airflue gas connection via separate pipes lead to two separate terminals One draws in the air required for combustion and the other discharges the combusshytion productsThe outlets may be in different pressure zonesDo not install the air supply and discharge on opposing surfacesUse of CE-certified system

C63C63X

The installer is responsible for installing a CE-certified discharge system that complies with the manufacturers recommendations (temperature flow pressure etc)

The maximum pressure drop in the pipes ΔP must not exceed the values given in the table below The pipes must be certified for this type of use and for a temperature of more than 100 degC The terminal part of the flue gas pipe must be certified as complying with the EN 1856-1 StandardIf installing discharge and intake pipes not supplied by Remeha these must be certified for the intended type of use and their maximum pressure drop must be compliant

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 31

Configuration Principle DescriptionC83C83X

MW-2000823-01

Flue gas connection to a collective flue for sealed boilers The air supply is inshydividual via a terminal coming from outside the buildingA concentric pipe can be used to both supply the boiler with combustion air and connect to the collective flue gas discharge systemThe chimney or flue gas pipe must be suitable for such use and the system CE certified

C93C93X

AD-3001059-01

Airflue gas connection via concentric pipes in an existing chimney The air supshyply in the chimney may be installed via the existing channel or via tubing Flue gas discharge and air intake are via a vertical terminal at the top of the chimney

The air intake and discharge must be close enough to be in the same pressure zoneThe minimum cross-sections are shown in the table belowThe flue system must be suitable for the intended use and the system CE certishyfied

Tab21 Minimum dimensions of the duct or pipe C93 C93X

Version (D) Without air supply With air supplyRigid 80 mm Oslash 130 mm 130 x 130 mm Oslash 140 mm 130 x 130 mmRigid 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmRigid 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmFlexible 80 mm Oslash 130 mm 130 x 130 mm Oslash 145 mm 130 x 130 mmFlexible 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmFlexible 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmConcentric 80125 mm Oslash 145 mm 145 x 145 mm Oslash 145 mm 145 x 145 mmConcentric 100150 mm Oslash 170 mm 170 x 170 mm Oslash 170 mm 170 x 170 mmConcentric 150200 mm Oslash 270 mm 270 x 270 mm - -

ImportantThe duct must comply with the air density requirements of the local regulations

Important

Only original components are authorised for connection to the boiler and for the terminalThe clear section must comply with the standardThe chimney must be swept before installing the discharge flue

CautionEnsure that the flue gas discharge pipes are securely attached to the wall with suitable retaining flanges to prevent any damage and guarantee the tightness of every gasket in the circuit

CautionThe minimum gradient of the condensates discharge pipe from the boiler to the waste water discharge must be 1 cm per linear metre

Fig22 Minimum dimensions of the duct or pipe C93 C93X

AD-3000330-03

D

Oslash

D

5 Installation

32 Gas 120 ACE 7717202 - v03 - 24062019

572 Lengths of the airflue gas pipes

The maximum lengths (Lmax) given in the table are valid for pipes in which the horizontal sections do not exceed one metre in total For each additional metre of horizontal pipe a multiplication coefficient of 12 must be applied when calculating the total length L The total length L is calculated by adding the lengths of the straight airflue gas pipes and the equivalent lengths of the other componentsAlways ensure that L is less than Lmax

ImportantFor the list of flue gas system accessories and the equivalent lengths refer to the current price list

Tab22 Lengths of the airflue gas pipes in metresConfigurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 100 mm 26 24 19

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 110 mm 40 40 40

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 110 mm 295 24 175

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 80125 mm - - -

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 100150 mm 9 8 59

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 80125 mm - - -

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 100150 mm 115 10 94

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 80125 mm over 2x80 mm

- - -

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 100150 mm over 2x100 mm

23 175 Air 11Flue gases 5

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm110 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 110150 mm110 mm

16 132 10

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 33

Configurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 110150 mm110 mm

165 135 94

Tab23 PPS pipe reduction for each element used

Diameter 80 mmSingle

80125 mmConcentric

100 mmSingle

100150 mmConcentric

45deg elbow 12 m 10 m 11 m 10 m87deg elbow 19 m 15 m 20 m 37 mStraight inspection tube 03 m 06 m - 10 m87deg inspection elbow 19 m 20 m 48 m -Inspection T 42 m 27 m 56 m 25 mInspection tube for flexible pipe 03 m - 05 m -

573 Dimensions of flue gas outlet pipe

WarningThe pipes connected to the flue gas adapter must satisfy the following dimension requirements

d1 External dimensions of flue gas outlet pipe

Tab24 Dimensions of pipe d1 (min-max)80 mm 793 - 803 mm100 mm 993 - 1003 mm150 mm 149 - 151 mm

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipe

Tab25 Dimensions of pipe d1 (min-max) D1 (min-max)8080 mm 793 - 803 mm 793 - 803 mm100100 mm 993 - 1003 mm 993 - 1003 mm110110 mm 1093 - 1103 mm 1093 - 1103 mm150150 mm 149 - 151 mm 149 - 151 mm

Fig23 Dimensions of open connection

AD-3001094-01

oslashd1

Fig24 Dimensions of parallel connection

AD-3000963-01

oslashd1 oslashD1

5 Installation

34 Gas 120 ACE 7717202 - v03 - 24062019

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipeL1 Length difference between flue gas outlet pipe and air supply pipe

Tab26 Dimensions of pipe d1 (min-max) D1 (min-max) L1

(1) (min-max)80125 mm 793 - 803 mm 124 - 1255 mm 0 - 15 mm100150 mm 993 - 1003 mm 149 - 151 mm 0 - 15 mm

(1) Shorten the inner pipe if the length difference is too great

574 Connection to the flue gas pipe

At delivery the flue gas outletair supply is fixed inside the boiler

1 Using a long tool unlock and remove the boilers front door2 Remove the boiler outlet

3 Two options for connection to the flue gas pipe

Option Description3a Connection to a vertical flue gas pipe Position the flue gas

outletair supply directly at the boiler outlet3b Connection to a horizontal flue gas pipe Insert an outlet elshy

bow ( not supplied) before the flue gas outletair supply

ImportantLubricate the gaskets on the flue system during assembly

Fig25 Dimensions of concentric connection

AD-3000962-01

oslashd1

L1

oslashD1

Fig26

MW-2000867-02

1

2

1

Fig27

3a 3b

MW-2000868-01

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 35

Fastening the coaxial pipes Fasten the intake pipes with two galvanised Oslash 42 mm screws with a maximum length of 16 mm

CautionBefore fixing the screws make sure that at least 45 cm of pipe is inserted in the gasket of the other pipe

WarningGuarantee a minimum pipe slope towards the boiler of at least 5 cm per metre

Fig28 Fastening the coaxial pipes using screws

BO-0000030

16 mm

5 Installation

36 Gas 120 ACE 7717202 - v03 - 24062019

6 Operation

61 Settings

To configure the installation and use the boiler please refer to the control unit manual

6 Operation

7717202 - v03 - 24062019 Gas 120 ACE 37

7 Maintenance

71 General

We recommend having the boiler inspected and serviced at regular intervals

CautionDo not neglect to service the boiler Contact a qualified professional or take out a maintenance contract for the obligatory annual servicing of the boilerFailure to service the appliance voids the warranty

Danger of electric shockBefore service work is started the boiler has to be de-energised and secured from accidentally being switched back on

CautionHave an inspection carried out and the flues swept at least once a year or more depending on the regulations in force in your country

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

CautionAfter maintenance or repair work check the entire heating system to ensure that there are no leaks

CautionOnly genuine spare parts may be used

72 Specific maintenance operations

721 Cleaning the siphon

1 Remove the flue gas outlet discharge pipe

2 Remove the condensate discharge pipe 3 Remove the screw from the siphon

Fig29

1

MW-2000903-01

Fig30

2

3

MW-2000904-01

7 Maintenance

38 Gas 120 ACE 7717202 - v03 - 24062019

4 Pull the siphon downwards to disengage it and pivot it to release it

5 Flush the siphon 6 Drain the siphon

7 Fill the siphon with clean water up to the mark 8 Lubricate the siphon gasket9 Re-engage the siphon and refit the screw

10 Refit the two pipes

722 Checking the ionisation current

1 Check the ionisation current at full load and at low loadThe value is stable after 1 minute

2 Clean or replace the ionisationignition electrode if the value is lower than 4 microA

Fig31

4

90deg

MW-2000905-01

Fig32

MW-2000843-01

Fig33

MW-2000844-01

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 39

723 Replace the ionizationignition electrode

The ionizationignition electrode must be replaced if

The ionization current is lt 4 microAThe electrode is damaged or worn

1 Remove the plug of the electrode from the igniter

ImportantThe ignition cable is fixed to the electrode and therefore may not be removed

2 Remove the two screws3 Remove the entire component4 Fit the new ionizationignition electrode with a new seal5 Reassemble the unit in the reverse order to disassembly

724 Servicing the forced flue connection pipes

1 Open the inspection hatches or remove the pipes2 Check that the air supply and discharge pipes are not blocked

If necessary clean the discharge pipe3 Check the tightness of the flue gas system4 Replace the tightness gaskets and if necessary any sections of pipe

until tightness is perfect

725 Checking the burner and cleaning the heat exchanger

1 Remove the air inlet flue on the venturi2 Loosen the gland on the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

Fig34

AD-0000088-01

4

1

2

3

Fig35 Removing the fan

AD-3001178-01

1

3

4

2

5

7 Maintenance

40 Gas 120 ACE 7717202 - v03 - 24062019

6 Remove the front plate from the heat exchanger7 Carefully lift the front plate including the burner and fan away from

the heat exchanger

8 Use a vacuum cleaner fitted with a special endpiece (accessory) to clean the top part of the heat exchanger (combustion chamber)

9 Vacuum again without the top brush on the end piece10 Clean the lower section of the heat exchanger with the special

cleaning blade (accessory)11 Check (eg using a mirror) whether any visible contamination has

been left behind If it has remove it with the vacuum cleaner12 Check that the burner cover of the dismantled burner is free from

cracks andor damage If not replace the burnerServicing the burner is usually not necessary it is self-cleaning Use compressed air to carefully blow away any dust

13 Reassemble the unit in reverse order

CautionRemember to reconnect the fan plugCheck that the gasket is correctly positioned between the mixing elbow and the heat exchanger (the gasket must lie absolutely flat in the appropriate groove to ensure that no gas can leak)Tighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the front plate nuts with a torque wrench to the firmness of 10 Nm

14 Open the gas supply and switch the power supply to the boiler back on

Fig36 Removing the front plate fan and burner

AD-3001179-01

6

7

Fig37 Cleaning the heat exchanger

AD-3001180-01

10

8 9

12

11

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 41

726 Checking the non-return valve

1 Remove the air inlet pipe from the venturi2 Unscrew the gland of the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

6 Dismantle the fan7 Remove the fan together with the gas valve unit8 Inspect the non-return valve and replace it in the event of a defect or

damage or if the maintenance kit contains a non-return valve9 Reassemble in the reverse order

CautionRemember to reconnect the fan plugTighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the two fan nuts with a torque wrench to the firmness of 38 Nm

Fig38 Disconnecting the fan

AD-3001178-01

1

3

4

2

5

Fig39 Checking the non-return valve

AD-3001181-01

2x

68

7

9

7 Maintenance

42 Gas 120 ACE 7717202 - v03 - 24062019

8 Decommissioning

81 Decommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

To switch off the boiler temporarily or permanently proceed as follows

1 Switch the boiler off2 Cut the electrical power to the boiler3 Close the gas valve on the boiler4 Drain the central heating system or ensure frost protection5 Close the door of the boiler to prevent air circulating inside it6 Remove the pipe connecting the boiler to the chimney and close the

nozzle with a plug

82 Recommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

Should it prove necessary to carry out the recommissioning of the boiler proceed as follows

1 Re-establish electrical power to the boiler2 Fit and check the flue gas pipe3 Fill the siphon with water4 Fill the central heating system5 Open the boiler gas valve6 Start up the boiler

8 Decommissioning

7717202 - v03 - 24062019 Gas 120 ACE 43

9 Disposal and recyclingCautionOnly qualified professionals are permitted to remove and dispose of the boiler in accordance with local and national regulations

If you need to remove the boiler proceed as follows

1 Switch off the boiler2 Cut the power supply to the boiler3 Close the main gas valve4 Close the water mains5 Close the gas valve on the boiler6 Drain the installation7 Remove the airflue gas pipes8 Disconnect all pipes9 Dismantle the boiler

Fig40

MW-3000179-03

9 Disposal and recycling

44 Gas 120 ACE 7717202 - v03 - 24062019

10 Environmental

101 Energy savings

Energy-saving advice

Do not block ventilation outletsDo not cover the radiators Do not hang curtains in front of the radiatorsInstall reflective panels behind the radiators to prevent heat lossesInsulate the pipes in rooms that are not heated (cellars and lofts)Close the radiators in rooms not in useDo not run hot (or cold) water pointlesslyInstall an energy-saving shower head which can save up to 40 energyTake showers rather than baths A bath consumes twice as much water and energy

102 Room thermostat and settings

Various models of room thermostat are available The type of thermostat used and the parameter selected impact total energy consumption

A modulating regulator which may be combined with thermostatic valves is eco-friendly in terms of energy and offers an excellent level of comfort This combination allows you to set the temperature separately for each room However do not install thermostatic radiator valves in the room in which the room thermostat is locatedComplete opening and closing of the thermostatic radiator valves causes undesirable variations in temperature Therefore these must be openedclosed progressivelySet the room thermostat to a temperature of approximately 20degC to reduce heating costs and energy consumptionLower the thermostat setting to approximately 16degC at night or when you are not at home This reduces heating costs and energy consumptionLower the thermostat setting well before airing the roomsSet the water temperature to a lower level in summer than in winter (eg 60degC and 80degC respectively) when an ONOFF thermostatis usedWhen clock thermostats and programmable thermostats are to be set do not forget to take any holidays and days when no one is at home into account

10 Environmental

7717202 - v03 - 24062019 Gas 120 ACE 45

11 Warranty

111 General

We would like to thank you for buying one of our appliances and for your trust in our productIn order to ensure continued safe and efficient operation we recommend that the product is regularly inspected and maintainedYour installer and our service department can assist with this

112 Terms of warranty

The following provisions do not affect the application in favour of the buyer of the legal provisions with regard to hidden defects that are applicable in the buyers countryThis appliance comes with a warranty that covers all manufacturing faults the warranty period will commence on the date of purchase stated on the installers invoiceThe warranty period is stated in our price listAs a manufacturer we can by no means be held liable if the appliance is used incorrectly is poorly maintained or not maintained at all or is not installed correctly (it is your responsibility to ensure that installation is carried out by a qualified installer)In particular we cannot be held liable for material damage intangible losses or physical injury resulting from an installation that does not comply with

Legal or regulatory requirements or provisions laid down by the local authoritiesNational or local regulations and special provisions relating to the installationOur manuals and installation instructions in particular in terms of regular maintenance of the appliances

Our warranty is limited to the replacement or repair of the parts found to be defective by our technical services team excluding labour transfer and transport costsOur warranty does not cover replacement or repair costs for parts that may become defective due to normal wear incorrect usage the intervention of unqualified third parties inadequate or insufficient supervision or maintenance a mains supply that is not appropriate or the use of unsuitable or poor quality fuelSmaller parts such as motors pumps electrical valves etc are guaranteed only if these parts have never been dismantledThe rights established in European Directive 9944EEC implemented by legal decree No 24 of 2 February 2002 and published in Official Journal No 57 of 8 March 2002 remain in force

11 Warranty

46 Gas 120 ACE 7717202 - v03 - 24062019

12 Spare parts

121 General

If inspection or maintenance work bring to light the need to replace a component in the boilerProvide the reference number given in the spare parts list when ordering a spare part

CautionOnly genuine spare parts may be used

122 Spare parts lists

1221 Exchanger

Fig41

MW-6000743-01

811x

7

7

4

2

16

3

10

119

65

1

13

12

18

14

19

15

18

17

Tab27

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

1 7699615 Complete exchanger x 1 7699614 Complete exchanger x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 47

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

2 S101564 Exchanger front plate x x x3 S54731 Exchanger inspection hatch insulation x x x4 S57241 Exchanger inspection hatch gasket x x x5 S100052 M4x10 self-locking screw (x20) x x x6 S54754 FURQ65 burner x 6 S57477 FURQ85 burner x x7 7623837 Set of 10 k NTC sensors x x x8 S54755 M6 nut (x20) x x x9 7659755 M4x10 screw (x10) x x x10 S53489 Electrode gasket (x10) x x x11 7692359 Ignition electrode x x x12 7631936 Flue gas flow pipe diameter 100 mm x x x13 7624643 NTC 2x20 k flue gas sensor with gasket x x x14 7624619 Ignition transformer x x x15 S56987 ZP M6x16 screw (x10) x x x16 7616253 Valve with support x x x17 7680596 Exchanger bracket x 17 7673616 Exchanger bracket x x18 7701752 Gasket diameter 100 mm (x5) x x x19 7632708 Earth electric clip (x2) x x x

1222 Gas circuit

Fig42

MW-6000744-01

3

2

5

6

9

4

8

10

7

12

11

1

14

13

13

12 Spare parts

48 Gas 120 ACE 7717202 - v03 - 24062019

Tab28Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 S101543 Silencer x 1 S101520 Silencer x 1 S101578 Silencer x2 S54777 Venturi gasket (x5) x 2 S59215 Gas valve-venturi gasket (x5) x 2 S101593 Gaskets (kit) x3 S101726 Fan RG 1481200-3633 x x 3 S100036 Fan RG 148 1200-3633-010202 x4 S101596 Gas valve VK4115v1386 x 4 S101597 Gas valve VK4115vb1012 x 4 S101510 Gas valve GB-ND 057 XP x5 S54766 Venturi x 5 S57488 Venturi x 5 S101595 Venturi VMS 45900450-010 x6 S59215 Gas valve-venturi gasket (x5) x x 7 S57827 Gas valve unit flange x8 S57828 268x22x25 O-ring (x5) x9 S101631 Diaphragm x10 7616249 Flue gas sensor cap (5x) x x x11 S56155 238x177x2 gasket (x20) x x x12 95760050 C HC M4-12 88 ZN3 screw x x x13 S48512 M5-10 screw (x10) x x x14 S101590 Silencer retaining clip x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 49

1223 Hydraulic circuit

Fig43

MW-6000745-01

1

14

6

9

11

8

12

5

37

9

10

2

4

13

Tab29Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7680598 Complete flow pipe x 1 7670807 Complete flow pipe x x2 7672557 Complete return pipe x x x3 7674076 Complete gas pipe x 3 7680434 Complete gas pipe x 3 7670720 Complete gas pipe x4 7698560 HUBA G38 pressure gauge x x x5 94994712 PVC pipe diameter 16x12 x x x6 7699357 Water deflector diameter 100 mm x x x7 94902073 Drain valve 12 x x x8 94918138 Air vent x x x9 95013064 44x32x2 mm green gasket x x x10 95013060 24x17x2 mm green gasket x x 10 95013062 30x21x12 mm green gasket x11 7692329 Condensate hose x x x13 7706103 Assembled siphon height 160 mm x 13 7706038 Assembled siphon height 250 mm x x14 7103731 Condensate drain pan gasket x x x

12 Spare parts

50 Gas 120 ACE 7717202 - v03 - 24062019

1224 Boiler body

Fig44

MW-6000746-01

2

2

1

6

3

34

5

4

Tab30Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7686377 Assembled frame x 1 7686139 Assembled frame x x2 7679958 117x34 handle diameter 65 mm x x x3 7676037 Wheel x x x4 7688301 Frame lateral gasket x 4 7688008 Frame lateral gasket x x5 7688353 Front panel gasket x 5 7688007 Front panel gasket x x6 7693874 R4-05 front panel lock x x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 51

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

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E infobergencz

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7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 26: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

7 Lock the ramps correctly onto the pallet8 Screw the unloading ramps onto the pallet9 Fold down the ends of the ramp so that they rest on the ground

10 Tilt the boiler backwards until it is resting on the castor wheels then remove it from the pallet

11 Recycle the pallet

Fig17

MW-6000770-01

9

9

8

7

Fig18

MW-6000739-02

600

350

11

10

550

5 Installation

26 Gas 120 ACE 7717202 - v03 - 24062019

12 Level the boiler using the adjustable feet(1) Factory setting 30 mm adjustment range 20 to 40 mm

CautionThe rear castor wheels must no longer be in contact with the ground

55 Hydraulic connections

551 Water treatment

In many cases the boiler and the heating system can be filled with mains water without treating the water

CautionDo not add any chemical products to the heating water without first consulting a water treatment specialist For example antifreeze water softeners products to increase or reduce the pH value chemical additives andor inhibitors These may cause faults in the boiler and damage the heat exchanger

Important

Flush the installation with at least 3 times the volume of water contained in the heating systemFlush the DHW circuit with at least 20 times its volume of water

The water in the installation must comply with following specifications

Tab19 Installation water specifications Initial commissioning Concentration (top up)Degree of acidity (untreated water) pH 65 - 85 65 - 85

Degree of acidity (treated washyter) pH 70 - 90 70 - 90

Conductivity at 25degC μScm le 500 le 500Chlorides mglitre le 50 le 50Other components mglitre lt 1 lt 1

Total water hardnessdegf 5 - 35 le 15degdH 28 - 200 le 85mmollitre(1) 05 - 35 lt 15

(1) Flow temperature less than 90degC mdash Maximum hardness 150 mmoll

Fig19

MW-6000773-01

(1)

12

12

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 27

ImportantIf water treatment proves necessary Remeha recommends the following manufacturers

CillitClimalifeFernoxPermoSentinel

552 Flushing new installations and installations less than 6 months old

Before filling the heating installation it is essential to remove any debris (copper caulking soldering flux) from the installation

1 Clean the installation with a powerful universal cleaner2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

553 Flushing an existing installation

Before filling the heating installation it is essential to remove any sludge deposits which have accumulated in the heating circuit over the years

1 Remove any sludge from the installation2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

554 Connecting the heating circuit

ImportantAbide by the information shown in the hydraulic diagrams

The pipes are not provided

Caution

The heating pipe must be mounted in accordance with the provisions applicableIf installing stop valves position the filldrain valve and the expansion vessel between the stop valves and the boilerAlways install a safety valve calibrated to a maximum of 4 bar on the heating circuit The safety valve can be connected to a venting pot The safety valve must not be used to drain the heating circuitIt is recommended to install a sludge collector on all installations

SeeIf fitting with a hydraulic kit (low-loss header or plate heat exchanger) refer to the kit manual

555 Connecting the condensate discharge pipe

Use a neutralisation station to achieve a pH value of more than 65 (in accordance with prevailing regulations)Discharge the condensates directly into the mains drainage system via a siphon In view of the acidity level (pH 25 to 3) only condensate discharge pipes made from compatible plastic should be used

5 Installation

28 Gas 120 ACE 7717202 - v03 - 24062019

The condensate discharge pipe is located at the rear of the boiler

Do not block the condensate discharge pipeTilt the discharge pipe by at least 30 mm per metre and make sure there are no low points that could cause the accumulation of water or deposits Maximum horizontal length 5 metresDo not drain condensation water into a roof gutterConnect the condensate discharge pipe in accordance with prevailing standardsIt is preferable to use the condensate neutralisers recommended by the manufacturer of the boiler

1 Connect a plastic hose to the condensate discharge outlet (DN 22)2 Insert the other end of the hose into a waste water discharge outlet

556 Filling the siphon

DangerIf operating with the siphon empty combustion products will escape into the premises in which the boiler is installed

1 Pour water into the flue gas pipe (central pipe) until it flows out of the condensate discharge pipe

56 Gas connection

Danger

Close the main gas valve before starting work on the gas pipesThe diameters of the pipes must be defined in accordance with the standards in force in your countryConnect the gas pipe in accordance with prevailing standards and regulationsEnsure that there is no dust in the gas pipe

The gas pipes are not providedIn old gas networks we recommend fitting a gas filter with a low pressure drop upstream of this point

1 Clean the gas supply pipe2 Remove the anti-dust plug located on the boilers gas inlet3 Mount a gas stop valve (not provided) on the boilers gas inlet4 Connect the gas inlet pipe to the gas stop valve

Fig20

MW-2000825-01

pH gt 65

Oslash32A

Fig21

MW-6000742-02

1

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 29

5 Close the gas supply valve before testing the pressure on the gas supply pipe to avoid damage caused by excessive pressure on the gas regulator Decompress before reopening the valve

561 Gas supply

Before mounting check that the gas meter has sufficient capacity (in m3h) To do this you should bear in mind the consumption of all appliances If the capacity of the gas meter is too low inform the gas supply companyThe boilers are preset to run on G20 gas (gas H) and can be adapted to run with the following gases

G31 (gas P)G3031 (gas BP)

ImportantTo use a different type of gas contact an approved assistance service

57 Air supplyflue gas outlet connections

571 Classification

The discharge and intake pipes must be certified for the appropriate configuration and must meet the requirements of the prevailing installation standards in the country

Tab20 Configurations and recommendations for the flue systemConfiguration Principle DescriptionB23B23P

AD-3001055-01

Connection to a chimney using a CE connection kit (single pipe in a flue comshybustion air taken from the boiler room)Follow the connection instructions and adhere to the recommended maximum pipe lengthsComply with the applicable regulations governing ventilation and cross-secshytions for room aeration vents

B33

MW-5000925-1

Room-ventilated version

Without down-draught diverterJoint flue gas discharge via the roof with guaranteed natural draft (at all times underpressure in the joint discharge duct)Flue gas discharge rinsed with air air from the installation area (special conshystruction)The IP rating of the boiler is lowered to IP20

C13C13X

AD-3001056-01

Airflue gas connection using concentric pipes to a horizontal terminal (so-called forced flue) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

5 Installation

30 Gas 120 ACE 7717202 - v03 - 24062019

Configuration Principle DescriptionC33C33X

AD-3001057-01

Airflue gas connection using concentric pipes to a vertical terminal (roof outshylet) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

C43C43X

MW-2000822-01

Airflue gas connection via concentric pipes to a common pipe supplying severshyal heating applicationsThe common pipe has a roof connection to a vertical terminal that draws in the air required for combustion and discharges the combustion productsUse of CE-certified system

C53

AD-3001058-02

Airflue gas connection via separate pipes lead to two separate terminals One draws in the air required for combustion and the other discharges the combusshytion productsThe outlets may be in different pressure zonesDo not install the air supply and discharge on opposing surfacesUse of CE-certified system

C63C63X

The installer is responsible for installing a CE-certified discharge system that complies with the manufacturers recommendations (temperature flow pressure etc)

The maximum pressure drop in the pipes ΔP must not exceed the values given in the table below The pipes must be certified for this type of use and for a temperature of more than 100 degC The terminal part of the flue gas pipe must be certified as complying with the EN 1856-1 StandardIf installing discharge and intake pipes not supplied by Remeha these must be certified for the intended type of use and their maximum pressure drop must be compliant

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 31

Configuration Principle DescriptionC83C83X

MW-2000823-01

Flue gas connection to a collective flue for sealed boilers The air supply is inshydividual via a terminal coming from outside the buildingA concentric pipe can be used to both supply the boiler with combustion air and connect to the collective flue gas discharge systemThe chimney or flue gas pipe must be suitable for such use and the system CE certified

C93C93X

AD-3001059-01

Airflue gas connection via concentric pipes in an existing chimney The air supshyply in the chimney may be installed via the existing channel or via tubing Flue gas discharge and air intake are via a vertical terminal at the top of the chimney

The air intake and discharge must be close enough to be in the same pressure zoneThe minimum cross-sections are shown in the table belowThe flue system must be suitable for the intended use and the system CE certishyfied

Tab21 Minimum dimensions of the duct or pipe C93 C93X

Version (D) Without air supply With air supplyRigid 80 mm Oslash 130 mm 130 x 130 mm Oslash 140 mm 130 x 130 mmRigid 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmRigid 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmFlexible 80 mm Oslash 130 mm 130 x 130 mm Oslash 145 mm 130 x 130 mmFlexible 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmFlexible 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmConcentric 80125 mm Oslash 145 mm 145 x 145 mm Oslash 145 mm 145 x 145 mmConcentric 100150 mm Oslash 170 mm 170 x 170 mm Oslash 170 mm 170 x 170 mmConcentric 150200 mm Oslash 270 mm 270 x 270 mm - -

ImportantThe duct must comply with the air density requirements of the local regulations

Important

Only original components are authorised for connection to the boiler and for the terminalThe clear section must comply with the standardThe chimney must be swept before installing the discharge flue

CautionEnsure that the flue gas discharge pipes are securely attached to the wall with suitable retaining flanges to prevent any damage and guarantee the tightness of every gasket in the circuit

CautionThe minimum gradient of the condensates discharge pipe from the boiler to the waste water discharge must be 1 cm per linear metre

Fig22 Minimum dimensions of the duct or pipe C93 C93X

AD-3000330-03

D

Oslash

D

5 Installation

32 Gas 120 ACE 7717202 - v03 - 24062019

572 Lengths of the airflue gas pipes

The maximum lengths (Lmax) given in the table are valid for pipes in which the horizontal sections do not exceed one metre in total For each additional metre of horizontal pipe a multiplication coefficient of 12 must be applied when calculating the total length L The total length L is calculated by adding the lengths of the straight airflue gas pipes and the equivalent lengths of the other componentsAlways ensure that L is less than Lmax

ImportantFor the list of flue gas system accessories and the equivalent lengths refer to the current price list

Tab22 Lengths of the airflue gas pipes in metresConfigurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 100 mm 26 24 19

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 110 mm 40 40 40

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 110 mm 295 24 175

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 80125 mm - - -

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 100150 mm 9 8 59

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 80125 mm - - -

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 100150 mm 115 10 94

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 80125 mm over 2x80 mm

- - -

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 100150 mm over 2x100 mm

23 175 Air 11Flue gases 5

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm110 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 110150 mm110 mm

16 132 10

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 33

Configurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 110150 mm110 mm

165 135 94

Tab23 PPS pipe reduction for each element used

Diameter 80 mmSingle

80125 mmConcentric

100 mmSingle

100150 mmConcentric

45deg elbow 12 m 10 m 11 m 10 m87deg elbow 19 m 15 m 20 m 37 mStraight inspection tube 03 m 06 m - 10 m87deg inspection elbow 19 m 20 m 48 m -Inspection T 42 m 27 m 56 m 25 mInspection tube for flexible pipe 03 m - 05 m -

573 Dimensions of flue gas outlet pipe

WarningThe pipes connected to the flue gas adapter must satisfy the following dimension requirements

d1 External dimensions of flue gas outlet pipe

Tab24 Dimensions of pipe d1 (min-max)80 mm 793 - 803 mm100 mm 993 - 1003 mm150 mm 149 - 151 mm

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipe

Tab25 Dimensions of pipe d1 (min-max) D1 (min-max)8080 mm 793 - 803 mm 793 - 803 mm100100 mm 993 - 1003 mm 993 - 1003 mm110110 mm 1093 - 1103 mm 1093 - 1103 mm150150 mm 149 - 151 mm 149 - 151 mm

Fig23 Dimensions of open connection

AD-3001094-01

oslashd1

Fig24 Dimensions of parallel connection

AD-3000963-01

oslashd1 oslashD1

5 Installation

34 Gas 120 ACE 7717202 - v03 - 24062019

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipeL1 Length difference between flue gas outlet pipe and air supply pipe

Tab26 Dimensions of pipe d1 (min-max) D1 (min-max) L1

(1) (min-max)80125 mm 793 - 803 mm 124 - 1255 mm 0 - 15 mm100150 mm 993 - 1003 mm 149 - 151 mm 0 - 15 mm

(1) Shorten the inner pipe if the length difference is too great

574 Connection to the flue gas pipe

At delivery the flue gas outletair supply is fixed inside the boiler

1 Using a long tool unlock and remove the boilers front door2 Remove the boiler outlet

3 Two options for connection to the flue gas pipe

Option Description3a Connection to a vertical flue gas pipe Position the flue gas

outletair supply directly at the boiler outlet3b Connection to a horizontal flue gas pipe Insert an outlet elshy

bow ( not supplied) before the flue gas outletair supply

ImportantLubricate the gaskets on the flue system during assembly

Fig25 Dimensions of concentric connection

AD-3000962-01

oslashd1

L1

oslashD1

Fig26

MW-2000867-02

1

2

1

Fig27

3a 3b

MW-2000868-01

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 35

Fastening the coaxial pipes Fasten the intake pipes with two galvanised Oslash 42 mm screws with a maximum length of 16 mm

CautionBefore fixing the screws make sure that at least 45 cm of pipe is inserted in the gasket of the other pipe

WarningGuarantee a minimum pipe slope towards the boiler of at least 5 cm per metre

Fig28 Fastening the coaxial pipes using screws

BO-0000030

16 mm

5 Installation

36 Gas 120 ACE 7717202 - v03 - 24062019

6 Operation

61 Settings

To configure the installation and use the boiler please refer to the control unit manual

6 Operation

7717202 - v03 - 24062019 Gas 120 ACE 37

7 Maintenance

71 General

We recommend having the boiler inspected and serviced at regular intervals

CautionDo not neglect to service the boiler Contact a qualified professional or take out a maintenance contract for the obligatory annual servicing of the boilerFailure to service the appliance voids the warranty

Danger of electric shockBefore service work is started the boiler has to be de-energised and secured from accidentally being switched back on

CautionHave an inspection carried out and the flues swept at least once a year or more depending on the regulations in force in your country

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

CautionAfter maintenance or repair work check the entire heating system to ensure that there are no leaks

CautionOnly genuine spare parts may be used

72 Specific maintenance operations

721 Cleaning the siphon

1 Remove the flue gas outlet discharge pipe

2 Remove the condensate discharge pipe 3 Remove the screw from the siphon

Fig29

1

MW-2000903-01

Fig30

2

3

MW-2000904-01

7 Maintenance

38 Gas 120 ACE 7717202 - v03 - 24062019

4 Pull the siphon downwards to disengage it and pivot it to release it

5 Flush the siphon 6 Drain the siphon

7 Fill the siphon with clean water up to the mark 8 Lubricate the siphon gasket9 Re-engage the siphon and refit the screw

10 Refit the two pipes

722 Checking the ionisation current

1 Check the ionisation current at full load and at low loadThe value is stable after 1 minute

2 Clean or replace the ionisationignition electrode if the value is lower than 4 microA

Fig31

4

90deg

MW-2000905-01

Fig32

MW-2000843-01

Fig33

MW-2000844-01

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 39

723 Replace the ionizationignition electrode

The ionizationignition electrode must be replaced if

The ionization current is lt 4 microAThe electrode is damaged or worn

1 Remove the plug of the electrode from the igniter

ImportantThe ignition cable is fixed to the electrode and therefore may not be removed

2 Remove the two screws3 Remove the entire component4 Fit the new ionizationignition electrode with a new seal5 Reassemble the unit in the reverse order to disassembly

724 Servicing the forced flue connection pipes

1 Open the inspection hatches or remove the pipes2 Check that the air supply and discharge pipes are not blocked

If necessary clean the discharge pipe3 Check the tightness of the flue gas system4 Replace the tightness gaskets and if necessary any sections of pipe

until tightness is perfect

725 Checking the burner and cleaning the heat exchanger

1 Remove the air inlet flue on the venturi2 Loosen the gland on the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

Fig34

AD-0000088-01

4

1

2

3

Fig35 Removing the fan

AD-3001178-01

1

3

4

2

5

7 Maintenance

40 Gas 120 ACE 7717202 - v03 - 24062019

6 Remove the front plate from the heat exchanger7 Carefully lift the front plate including the burner and fan away from

the heat exchanger

8 Use a vacuum cleaner fitted with a special endpiece (accessory) to clean the top part of the heat exchanger (combustion chamber)

9 Vacuum again without the top brush on the end piece10 Clean the lower section of the heat exchanger with the special

cleaning blade (accessory)11 Check (eg using a mirror) whether any visible contamination has

been left behind If it has remove it with the vacuum cleaner12 Check that the burner cover of the dismantled burner is free from

cracks andor damage If not replace the burnerServicing the burner is usually not necessary it is self-cleaning Use compressed air to carefully blow away any dust

13 Reassemble the unit in reverse order

CautionRemember to reconnect the fan plugCheck that the gasket is correctly positioned between the mixing elbow and the heat exchanger (the gasket must lie absolutely flat in the appropriate groove to ensure that no gas can leak)Tighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the front plate nuts with a torque wrench to the firmness of 10 Nm

14 Open the gas supply and switch the power supply to the boiler back on

Fig36 Removing the front plate fan and burner

AD-3001179-01

6

7

Fig37 Cleaning the heat exchanger

AD-3001180-01

10

8 9

12

11

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 41

726 Checking the non-return valve

1 Remove the air inlet pipe from the venturi2 Unscrew the gland of the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

6 Dismantle the fan7 Remove the fan together with the gas valve unit8 Inspect the non-return valve and replace it in the event of a defect or

damage or if the maintenance kit contains a non-return valve9 Reassemble in the reverse order

CautionRemember to reconnect the fan plugTighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the two fan nuts with a torque wrench to the firmness of 38 Nm

Fig38 Disconnecting the fan

AD-3001178-01

1

3

4

2

5

Fig39 Checking the non-return valve

AD-3001181-01

2x

68

7

9

7 Maintenance

42 Gas 120 ACE 7717202 - v03 - 24062019

8 Decommissioning

81 Decommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

To switch off the boiler temporarily or permanently proceed as follows

1 Switch the boiler off2 Cut the electrical power to the boiler3 Close the gas valve on the boiler4 Drain the central heating system or ensure frost protection5 Close the door of the boiler to prevent air circulating inside it6 Remove the pipe connecting the boiler to the chimney and close the

nozzle with a plug

82 Recommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

Should it prove necessary to carry out the recommissioning of the boiler proceed as follows

1 Re-establish electrical power to the boiler2 Fit and check the flue gas pipe3 Fill the siphon with water4 Fill the central heating system5 Open the boiler gas valve6 Start up the boiler

8 Decommissioning

7717202 - v03 - 24062019 Gas 120 ACE 43

9 Disposal and recyclingCautionOnly qualified professionals are permitted to remove and dispose of the boiler in accordance with local and national regulations

If you need to remove the boiler proceed as follows

1 Switch off the boiler2 Cut the power supply to the boiler3 Close the main gas valve4 Close the water mains5 Close the gas valve on the boiler6 Drain the installation7 Remove the airflue gas pipes8 Disconnect all pipes9 Dismantle the boiler

Fig40

MW-3000179-03

9 Disposal and recycling

44 Gas 120 ACE 7717202 - v03 - 24062019

10 Environmental

101 Energy savings

Energy-saving advice

Do not block ventilation outletsDo not cover the radiators Do not hang curtains in front of the radiatorsInstall reflective panels behind the radiators to prevent heat lossesInsulate the pipes in rooms that are not heated (cellars and lofts)Close the radiators in rooms not in useDo not run hot (or cold) water pointlesslyInstall an energy-saving shower head which can save up to 40 energyTake showers rather than baths A bath consumes twice as much water and energy

102 Room thermostat and settings

Various models of room thermostat are available The type of thermostat used and the parameter selected impact total energy consumption

A modulating regulator which may be combined with thermostatic valves is eco-friendly in terms of energy and offers an excellent level of comfort This combination allows you to set the temperature separately for each room However do not install thermostatic radiator valves in the room in which the room thermostat is locatedComplete opening and closing of the thermostatic radiator valves causes undesirable variations in temperature Therefore these must be openedclosed progressivelySet the room thermostat to a temperature of approximately 20degC to reduce heating costs and energy consumptionLower the thermostat setting to approximately 16degC at night or when you are not at home This reduces heating costs and energy consumptionLower the thermostat setting well before airing the roomsSet the water temperature to a lower level in summer than in winter (eg 60degC and 80degC respectively) when an ONOFF thermostatis usedWhen clock thermostats and programmable thermostats are to be set do not forget to take any holidays and days when no one is at home into account

10 Environmental

7717202 - v03 - 24062019 Gas 120 ACE 45

11 Warranty

111 General

We would like to thank you for buying one of our appliances and for your trust in our productIn order to ensure continued safe and efficient operation we recommend that the product is regularly inspected and maintainedYour installer and our service department can assist with this

112 Terms of warranty

The following provisions do not affect the application in favour of the buyer of the legal provisions with regard to hidden defects that are applicable in the buyers countryThis appliance comes with a warranty that covers all manufacturing faults the warranty period will commence on the date of purchase stated on the installers invoiceThe warranty period is stated in our price listAs a manufacturer we can by no means be held liable if the appliance is used incorrectly is poorly maintained or not maintained at all or is not installed correctly (it is your responsibility to ensure that installation is carried out by a qualified installer)In particular we cannot be held liable for material damage intangible losses or physical injury resulting from an installation that does not comply with

Legal or regulatory requirements or provisions laid down by the local authoritiesNational or local regulations and special provisions relating to the installationOur manuals and installation instructions in particular in terms of regular maintenance of the appliances

Our warranty is limited to the replacement or repair of the parts found to be defective by our technical services team excluding labour transfer and transport costsOur warranty does not cover replacement or repair costs for parts that may become defective due to normal wear incorrect usage the intervention of unqualified third parties inadequate or insufficient supervision or maintenance a mains supply that is not appropriate or the use of unsuitable or poor quality fuelSmaller parts such as motors pumps electrical valves etc are guaranteed only if these parts have never been dismantledThe rights established in European Directive 9944EEC implemented by legal decree No 24 of 2 February 2002 and published in Official Journal No 57 of 8 March 2002 remain in force

11 Warranty

46 Gas 120 ACE 7717202 - v03 - 24062019

12 Spare parts

121 General

If inspection or maintenance work bring to light the need to replace a component in the boilerProvide the reference number given in the spare parts list when ordering a spare part

CautionOnly genuine spare parts may be used

122 Spare parts lists

1221 Exchanger

Fig41

MW-6000743-01

811x

7

7

4

2

16

3

10

119

65

1

13

12

18

14

19

15

18

17

Tab27

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

1 7699615 Complete exchanger x 1 7699614 Complete exchanger x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 47

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

2 S101564 Exchanger front plate x x x3 S54731 Exchanger inspection hatch insulation x x x4 S57241 Exchanger inspection hatch gasket x x x5 S100052 M4x10 self-locking screw (x20) x x x6 S54754 FURQ65 burner x 6 S57477 FURQ85 burner x x7 7623837 Set of 10 k NTC sensors x x x8 S54755 M6 nut (x20) x x x9 7659755 M4x10 screw (x10) x x x10 S53489 Electrode gasket (x10) x x x11 7692359 Ignition electrode x x x12 7631936 Flue gas flow pipe diameter 100 mm x x x13 7624643 NTC 2x20 k flue gas sensor with gasket x x x14 7624619 Ignition transformer x x x15 S56987 ZP M6x16 screw (x10) x x x16 7616253 Valve with support x x x17 7680596 Exchanger bracket x 17 7673616 Exchanger bracket x x18 7701752 Gasket diameter 100 mm (x5) x x x19 7632708 Earth electric clip (x2) x x x

1222 Gas circuit

Fig42

MW-6000744-01

3

2

5

6

9

4

8

10

7

12

11

1

14

13

13

12 Spare parts

48 Gas 120 ACE 7717202 - v03 - 24062019

Tab28Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 S101543 Silencer x 1 S101520 Silencer x 1 S101578 Silencer x2 S54777 Venturi gasket (x5) x 2 S59215 Gas valve-venturi gasket (x5) x 2 S101593 Gaskets (kit) x3 S101726 Fan RG 1481200-3633 x x 3 S100036 Fan RG 148 1200-3633-010202 x4 S101596 Gas valve VK4115v1386 x 4 S101597 Gas valve VK4115vb1012 x 4 S101510 Gas valve GB-ND 057 XP x5 S54766 Venturi x 5 S57488 Venturi x 5 S101595 Venturi VMS 45900450-010 x6 S59215 Gas valve-venturi gasket (x5) x x 7 S57827 Gas valve unit flange x8 S57828 268x22x25 O-ring (x5) x9 S101631 Diaphragm x10 7616249 Flue gas sensor cap (5x) x x x11 S56155 238x177x2 gasket (x20) x x x12 95760050 C HC M4-12 88 ZN3 screw x x x13 S48512 M5-10 screw (x10) x x x14 S101590 Silencer retaining clip x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 49

1223 Hydraulic circuit

Fig43

MW-6000745-01

1

14

6

9

11

8

12

5

37

9

10

2

4

13

Tab29Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7680598 Complete flow pipe x 1 7670807 Complete flow pipe x x2 7672557 Complete return pipe x x x3 7674076 Complete gas pipe x 3 7680434 Complete gas pipe x 3 7670720 Complete gas pipe x4 7698560 HUBA G38 pressure gauge x x x5 94994712 PVC pipe diameter 16x12 x x x6 7699357 Water deflector diameter 100 mm x x x7 94902073 Drain valve 12 x x x8 94918138 Air vent x x x9 95013064 44x32x2 mm green gasket x x x10 95013060 24x17x2 mm green gasket x x 10 95013062 30x21x12 mm green gasket x11 7692329 Condensate hose x x x13 7706103 Assembled siphon height 160 mm x 13 7706038 Assembled siphon height 250 mm x x14 7103731 Condensate drain pan gasket x x x

12 Spare parts

50 Gas 120 ACE 7717202 - v03 - 24062019

1224 Boiler body

Fig44

MW-6000746-01

2

2

1

6

3

34

5

4

Tab30Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7686377 Assembled frame x 1 7686139 Assembled frame x x2 7679958 117x34 handle diameter 65 mm x x x3 7676037 Wheel x x x4 7688301 Frame lateral gasket x 4 7688008 Frame lateral gasket x x5 7688353 Front panel gasket x 5 7688007 Front panel gasket x x6 7693874 R4-05 front panel lock x x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 51

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

E toimistoestsystemsfi

Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 27: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

12 Level the boiler using the adjustable feet(1) Factory setting 30 mm adjustment range 20 to 40 mm

CautionThe rear castor wheels must no longer be in contact with the ground

55 Hydraulic connections

551 Water treatment

In many cases the boiler and the heating system can be filled with mains water without treating the water

CautionDo not add any chemical products to the heating water without first consulting a water treatment specialist For example antifreeze water softeners products to increase or reduce the pH value chemical additives andor inhibitors These may cause faults in the boiler and damage the heat exchanger

Important

Flush the installation with at least 3 times the volume of water contained in the heating systemFlush the DHW circuit with at least 20 times its volume of water

The water in the installation must comply with following specifications

Tab19 Installation water specifications Initial commissioning Concentration (top up)Degree of acidity (untreated water) pH 65 - 85 65 - 85

Degree of acidity (treated washyter) pH 70 - 90 70 - 90

Conductivity at 25degC μScm le 500 le 500Chlorides mglitre le 50 le 50Other components mglitre lt 1 lt 1

Total water hardnessdegf 5 - 35 le 15degdH 28 - 200 le 85mmollitre(1) 05 - 35 lt 15

(1) Flow temperature less than 90degC mdash Maximum hardness 150 mmoll

Fig19

MW-6000773-01

(1)

12

12

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 27

ImportantIf water treatment proves necessary Remeha recommends the following manufacturers

CillitClimalifeFernoxPermoSentinel

552 Flushing new installations and installations less than 6 months old

Before filling the heating installation it is essential to remove any debris (copper caulking soldering flux) from the installation

1 Clean the installation with a powerful universal cleaner2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

553 Flushing an existing installation

Before filling the heating installation it is essential to remove any sludge deposits which have accumulated in the heating circuit over the years

1 Remove any sludge from the installation2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

554 Connecting the heating circuit

ImportantAbide by the information shown in the hydraulic diagrams

The pipes are not provided

Caution

The heating pipe must be mounted in accordance with the provisions applicableIf installing stop valves position the filldrain valve and the expansion vessel between the stop valves and the boilerAlways install a safety valve calibrated to a maximum of 4 bar on the heating circuit The safety valve can be connected to a venting pot The safety valve must not be used to drain the heating circuitIt is recommended to install a sludge collector on all installations

SeeIf fitting with a hydraulic kit (low-loss header or plate heat exchanger) refer to the kit manual

555 Connecting the condensate discharge pipe

Use a neutralisation station to achieve a pH value of more than 65 (in accordance with prevailing regulations)Discharge the condensates directly into the mains drainage system via a siphon In view of the acidity level (pH 25 to 3) only condensate discharge pipes made from compatible plastic should be used

5 Installation

28 Gas 120 ACE 7717202 - v03 - 24062019

The condensate discharge pipe is located at the rear of the boiler

Do not block the condensate discharge pipeTilt the discharge pipe by at least 30 mm per metre and make sure there are no low points that could cause the accumulation of water or deposits Maximum horizontal length 5 metresDo not drain condensation water into a roof gutterConnect the condensate discharge pipe in accordance with prevailing standardsIt is preferable to use the condensate neutralisers recommended by the manufacturer of the boiler

1 Connect a plastic hose to the condensate discharge outlet (DN 22)2 Insert the other end of the hose into a waste water discharge outlet

556 Filling the siphon

DangerIf operating with the siphon empty combustion products will escape into the premises in which the boiler is installed

1 Pour water into the flue gas pipe (central pipe) until it flows out of the condensate discharge pipe

56 Gas connection

Danger

Close the main gas valve before starting work on the gas pipesThe diameters of the pipes must be defined in accordance with the standards in force in your countryConnect the gas pipe in accordance with prevailing standards and regulationsEnsure that there is no dust in the gas pipe

The gas pipes are not providedIn old gas networks we recommend fitting a gas filter with a low pressure drop upstream of this point

1 Clean the gas supply pipe2 Remove the anti-dust plug located on the boilers gas inlet3 Mount a gas stop valve (not provided) on the boilers gas inlet4 Connect the gas inlet pipe to the gas stop valve

Fig20

MW-2000825-01

pH gt 65

Oslash32A

Fig21

MW-6000742-02

1

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 29

5 Close the gas supply valve before testing the pressure on the gas supply pipe to avoid damage caused by excessive pressure on the gas regulator Decompress before reopening the valve

561 Gas supply

Before mounting check that the gas meter has sufficient capacity (in m3h) To do this you should bear in mind the consumption of all appliances If the capacity of the gas meter is too low inform the gas supply companyThe boilers are preset to run on G20 gas (gas H) and can be adapted to run with the following gases

G31 (gas P)G3031 (gas BP)

ImportantTo use a different type of gas contact an approved assistance service

57 Air supplyflue gas outlet connections

571 Classification

The discharge and intake pipes must be certified for the appropriate configuration and must meet the requirements of the prevailing installation standards in the country

Tab20 Configurations and recommendations for the flue systemConfiguration Principle DescriptionB23B23P

AD-3001055-01

Connection to a chimney using a CE connection kit (single pipe in a flue comshybustion air taken from the boiler room)Follow the connection instructions and adhere to the recommended maximum pipe lengthsComply with the applicable regulations governing ventilation and cross-secshytions for room aeration vents

B33

MW-5000925-1

Room-ventilated version

Without down-draught diverterJoint flue gas discharge via the roof with guaranteed natural draft (at all times underpressure in the joint discharge duct)Flue gas discharge rinsed with air air from the installation area (special conshystruction)The IP rating of the boiler is lowered to IP20

C13C13X

AD-3001056-01

Airflue gas connection using concentric pipes to a horizontal terminal (so-called forced flue) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

5 Installation

30 Gas 120 ACE 7717202 - v03 - 24062019

Configuration Principle DescriptionC33C33X

AD-3001057-01

Airflue gas connection using concentric pipes to a vertical terminal (roof outshylet) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

C43C43X

MW-2000822-01

Airflue gas connection via concentric pipes to a common pipe supplying severshyal heating applicationsThe common pipe has a roof connection to a vertical terminal that draws in the air required for combustion and discharges the combustion productsUse of CE-certified system

C53

AD-3001058-02

Airflue gas connection via separate pipes lead to two separate terminals One draws in the air required for combustion and the other discharges the combusshytion productsThe outlets may be in different pressure zonesDo not install the air supply and discharge on opposing surfacesUse of CE-certified system

C63C63X

The installer is responsible for installing a CE-certified discharge system that complies with the manufacturers recommendations (temperature flow pressure etc)

The maximum pressure drop in the pipes ΔP must not exceed the values given in the table below The pipes must be certified for this type of use and for a temperature of more than 100 degC The terminal part of the flue gas pipe must be certified as complying with the EN 1856-1 StandardIf installing discharge and intake pipes not supplied by Remeha these must be certified for the intended type of use and their maximum pressure drop must be compliant

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 31

Configuration Principle DescriptionC83C83X

MW-2000823-01

Flue gas connection to a collective flue for sealed boilers The air supply is inshydividual via a terminal coming from outside the buildingA concentric pipe can be used to both supply the boiler with combustion air and connect to the collective flue gas discharge systemThe chimney or flue gas pipe must be suitable for such use and the system CE certified

C93C93X

AD-3001059-01

Airflue gas connection via concentric pipes in an existing chimney The air supshyply in the chimney may be installed via the existing channel or via tubing Flue gas discharge and air intake are via a vertical terminal at the top of the chimney

The air intake and discharge must be close enough to be in the same pressure zoneThe minimum cross-sections are shown in the table belowThe flue system must be suitable for the intended use and the system CE certishyfied

Tab21 Minimum dimensions of the duct or pipe C93 C93X

Version (D) Without air supply With air supplyRigid 80 mm Oslash 130 mm 130 x 130 mm Oslash 140 mm 130 x 130 mmRigid 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmRigid 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmFlexible 80 mm Oslash 130 mm 130 x 130 mm Oslash 145 mm 130 x 130 mmFlexible 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmFlexible 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmConcentric 80125 mm Oslash 145 mm 145 x 145 mm Oslash 145 mm 145 x 145 mmConcentric 100150 mm Oslash 170 mm 170 x 170 mm Oslash 170 mm 170 x 170 mmConcentric 150200 mm Oslash 270 mm 270 x 270 mm - -

ImportantThe duct must comply with the air density requirements of the local regulations

Important

Only original components are authorised for connection to the boiler and for the terminalThe clear section must comply with the standardThe chimney must be swept before installing the discharge flue

CautionEnsure that the flue gas discharge pipes are securely attached to the wall with suitable retaining flanges to prevent any damage and guarantee the tightness of every gasket in the circuit

CautionThe minimum gradient of the condensates discharge pipe from the boiler to the waste water discharge must be 1 cm per linear metre

Fig22 Minimum dimensions of the duct or pipe C93 C93X

AD-3000330-03

D

Oslash

D

5 Installation

32 Gas 120 ACE 7717202 - v03 - 24062019

572 Lengths of the airflue gas pipes

The maximum lengths (Lmax) given in the table are valid for pipes in which the horizontal sections do not exceed one metre in total For each additional metre of horizontal pipe a multiplication coefficient of 12 must be applied when calculating the total length L The total length L is calculated by adding the lengths of the straight airflue gas pipes and the equivalent lengths of the other componentsAlways ensure that L is less than Lmax

ImportantFor the list of flue gas system accessories and the equivalent lengths refer to the current price list

Tab22 Lengths of the airflue gas pipes in metresConfigurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 100 mm 26 24 19

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 110 mm 40 40 40

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 110 mm 295 24 175

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 80125 mm - - -

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 100150 mm 9 8 59

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 80125 mm - - -

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 100150 mm 115 10 94

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 80125 mm over 2x80 mm

- - -

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 100150 mm over 2x100 mm

23 175 Air 11Flue gases 5

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm110 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 110150 mm110 mm

16 132 10

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 33

Configurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 110150 mm110 mm

165 135 94

Tab23 PPS pipe reduction for each element used

Diameter 80 mmSingle

80125 mmConcentric

100 mmSingle

100150 mmConcentric

45deg elbow 12 m 10 m 11 m 10 m87deg elbow 19 m 15 m 20 m 37 mStraight inspection tube 03 m 06 m - 10 m87deg inspection elbow 19 m 20 m 48 m -Inspection T 42 m 27 m 56 m 25 mInspection tube for flexible pipe 03 m - 05 m -

573 Dimensions of flue gas outlet pipe

WarningThe pipes connected to the flue gas adapter must satisfy the following dimension requirements

d1 External dimensions of flue gas outlet pipe

Tab24 Dimensions of pipe d1 (min-max)80 mm 793 - 803 mm100 mm 993 - 1003 mm150 mm 149 - 151 mm

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipe

Tab25 Dimensions of pipe d1 (min-max) D1 (min-max)8080 mm 793 - 803 mm 793 - 803 mm100100 mm 993 - 1003 mm 993 - 1003 mm110110 mm 1093 - 1103 mm 1093 - 1103 mm150150 mm 149 - 151 mm 149 - 151 mm

Fig23 Dimensions of open connection

AD-3001094-01

oslashd1

Fig24 Dimensions of parallel connection

AD-3000963-01

oslashd1 oslashD1

5 Installation

34 Gas 120 ACE 7717202 - v03 - 24062019

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipeL1 Length difference between flue gas outlet pipe and air supply pipe

Tab26 Dimensions of pipe d1 (min-max) D1 (min-max) L1

(1) (min-max)80125 mm 793 - 803 mm 124 - 1255 mm 0 - 15 mm100150 mm 993 - 1003 mm 149 - 151 mm 0 - 15 mm

(1) Shorten the inner pipe if the length difference is too great

574 Connection to the flue gas pipe

At delivery the flue gas outletair supply is fixed inside the boiler

1 Using a long tool unlock and remove the boilers front door2 Remove the boiler outlet

3 Two options for connection to the flue gas pipe

Option Description3a Connection to a vertical flue gas pipe Position the flue gas

outletair supply directly at the boiler outlet3b Connection to a horizontal flue gas pipe Insert an outlet elshy

bow ( not supplied) before the flue gas outletair supply

ImportantLubricate the gaskets on the flue system during assembly

Fig25 Dimensions of concentric connection

AD-3000962-01

oslashd1

L1

oslashD1

Fig26

MW-2000867-02

1

2

1

Fig27

3a 3b

MW-2000868-01

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 35

Fastening the coaxial pipes Fasten the intake pipes with two galvanised Oslash 42 mm screws with a maximum length of 16 mm

CautionBefore fixing the screws make sure that at least 45 cm of pipe is inserted in the gasket of the other pipe

WarningGuarantee a minimum pipe slope towards the boiler of at least 5 cm per metre

Fig28 Fastening the coaxial pipes using screws

BO-0000030

16 mm

5 Installation

36 Gas 120 ACE 7717202 - v03 - 24062019

6 Operation

61 Settings

To configure the installation and use the boiler please refer to the control unit manual

6 Operation

7717202 - v03 - 24062019 Gas 120 ACE 37

7 Maintenance

71 General

We recommend having the boiler inspected and serviced at regular intervals

CautionDo not neglect to service the boiler Contact a qualified professional or take out a maintenance contract for the obligatory annual servicing of the boilerFailure to service the appliance voids the warranty

Danger of electric shockBefore service work is started the boiler has to be de-energised and secured from accidentally being switched back on

CautionHave an inspection carried out and the flues swept at least once a year or more depending on the regulations in force in your country

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

CautionAfter maintenance or repair work check the entire heating system to ensure that there are no leaks

CautionOnly genuine spare parts may be used

72 Specific maintenance operations

721 Cleaning the siphon

1 Remove the flue gas outlet discharge pipe

2 Remove the condensate discharge pipe 3 Remove the screw from the siphon

Fig29

1

MW-2000903-01

Fig30

2

3

MW-2000904-01

7 Maintenance

38 Gas 120 ACE 7717202 - v03 - 24062019

4 Pull the siphon downwards to disengage it and pivot it to release it

5 Flush the siphon 6 Drain the siphon

7 Fill the siphon with clean water up to the mark 8 Lubricate the siphon gasket9 Re-engage the siphon and refit the screw

10 Refit the two pipes

722 Checking the ionisation current

1 Check the ionisation current at full load and at low loadThe value is stable after 1 minute

2 Clean or replace the ionisationignition electrode if the value is lower than 4 microA

Fig31

4

90deg

MW-2000905-01

Fig32

MW-2000843-01

Fig33

MW-2000844-01

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 39

723 Replace the ionizationignition electrode

The ionizationignition electrode must be replaced if

The ionization current is lt 4 microAThe electrode is damaged or worn

1 Remove the plug of the electrode from the igniter

ImportantThe ignition cable is fixed to the electrode and therefore may not be removed

2 Remove the two screws3 Remove the entire component4 Fit the new ionizationignition electrode with a new seal5 Reassemble the unit in the reverse order to disassembly

724 Servicing the forced flue connection pipes

1 Open the inspection hatches or remove the pipes2 Check that the air supply and discharge pipes are not blocked

If necessary clean the discharge pipe3 Check the tightness of the flue gas system4 Replace the tightness gaskets and if necessary any sections of pipe

until tightness is perfect

725 Checking the burner and cleaning the heat exchanger

1 Remove the air inlet flue on the venturi2 Loosen the gland on the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

Fig34

AD-0000088-01

4

1

2

3

Fig35 Removing the fan

AD-3001178-01

1

3

4

2

5

7 Maintenance

40 Gas 120 ACE 7717202 - v03 - 24062019

6 Remove the front plate from the heat exchanger7 Carefully lift the front plate including the burner and fan away from

the heat exchanger

8 Use a vacuum cleaner fitted with a special endpiece (accessory) to clean the top part of the heat exchanger (combustion chamber)

9 Vacuum again without the top brush on the end piece10 Clean the lower section of the heat exchanger with the special

cleaning blade (accessory)11 Check (eg using a mirror) whether any visible contamination has

been left behind If it has remove it with the vacuum cleaner12 Check that the burner cover of the dismantled burner is free from

cracks andor damage If not replace the burnerServicing the burner is usually not necessary it is self-cleaning Use compressed air to carefully blow away any dust

13 Reassemble the unit in reverse order

CautionRemember to reconnect the fan plugCheck that the gasket is correctly positioned between the mixing elbow and the heat exchanger (the gasket must lie absolutely flat in the appropriate groove to ensure that no gas can leak)Tighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the front plate nuts with a torque wrench to the firmness of 10 Nm

14 Open the gas supply and switch the power supply to the boiler back on

Fig36 Removing the front plate fan and burner

AD-3001179-01

6

7

Fig37 Cleaning the heat exchanger

AD-3001180-01

10

8 9

12

11

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 41

726 Checking the non-return valve

1 Remove the air inlet pipe from the venturi2 Unscrew the gland of the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

6 Dismantle the fan7 Remove the fan together with the gas valve unit8 Inspect the non-return valve and replace it in the event of a defect or

damage or if the maintenance kit contains a non-return valve9 Reassemble in the reverse order

CautionRemember to reconnect the fan plugTighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the two fan nuts with a torque wrench to the firmness of 38 Nm

Fig38 Disconnecting the fan

AD-3001178-01

1

3

4

2

5

Fig39 Checking the non-return valve

AD-3001181-01

2x

68

7

9

7 Maintenance

42 Gas 120 ACE 7717202 - v03 - 24062019

8 Decommissioning

81 Decommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

To switch off the boiler temporarily or permanently proceed as follows

1 Switch the boiler off2 Cut the electrical power to the boiler3 Close the gas valve on the boiler4 Drain the central heating system or ensure frost protection5 Close the door of the boiler to prevent air circulating inside it6 Remove the pipe connecting the boiler to the chimney and close the

nozzle with a plug

82 Recommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

Should it prove necessary to carry out the recommissioning of the boiler proceed as follows

1 Re-establish electrical power to the boiler2 Fit and check the flue gas pipe3 Fill the siphon with water4 Fill the central heating system5 Open the boiler gas valve6 Start up the boiler

8 Decommissioning

7717202 - v03 - 24062019 Gas 120 ACE 43

9 Disposal and recyclingCautionOnly qualified professionals are permitted to remove and dispose of the boiler in accordance with local and national regulations

If you need to remove the boiler proceed as follows

1 Switch off the boiler2 Cut the power supply to the boiler3 Close the main gas valve4 Close the water mains5 Close the gas valve on the boiler6 Drain the installation7 Remove the airflue gas pipes8 Disconnect all pipes9 Dismantle the boiler

Fig40

MW-3000179-03

9 Disposal and recycling

44 Gas 120 ACE 7717202 - v03 - 24062019

10 Environmental

101 Energy savings

Energy-saving advice

Do not block ventilation outletsDo not cover the radiators Do not hang curtains in front of the radiatorsInstall reflective panels behind the radiators to prevent heat lossesInsulate the pipes in rooms that are not heated (cellars and lofts)Close the radiators in rooms not in useDo not run hot (or cold) water pointlesslyInstall an energy-saving shower head which can save up to 40 energyTake showers rather than baths A bath consumes twice as much water and energy

102 Room thermostat and settings

Various models of room thermostat are available The type of thermostat used and the parameter selected impact total energy consumption

A modulating regulator which may be combined with thermostatic valves is eco-friendly in terms of energy and offers an excellent level of comfort This combination allows you to set the temperature separately for each room However do not install thermostatic radiator valves in the room in which the room thermostat is locatedComplete opening and closing of the thermostatic radiator valves causes undesirable variations in temperature Therefore these must be openedclosed progressivelySet the room thermostat to a temperature of approximately 20degC to reduce heating costs and energy consumptionLower the thermostat setting to approximately 16degC at night or when you are not at home This reduces heating costs and energy consumptionLower the thermostat setting well before airing the roomsSet the water temperature to a lower level in summer than in winter (eg 60degC and 80degC respectively) when an ONOFF thermostatis usedWhen clock thermostats and programmable thermostats are to be set do not forget to take any holidays and days when no one is at home into account

10 Environmental

7717202 - v03 - 24062019 Gas 120 ACE 45

11 Warranty

111 General

We would like to thank you for buying one of our appliances and for your trust in our productIn order to ensure continued safe and efficient operation we recommend that the product is regularly inspected and maintainedYour installer and our service department can assist with this

112 Terms of warranty

The following provisions do not affect the application in favour of the buyer of the legal provisions with regard to hidden defects that are applicable in the buyers countryThis appliance comes with a warranty that covers all manufacturing faults the warranty period will commence on the date of purchase stated on the installers invoiceThe warranty period is stated in our price listAs a manufacturer we can by no means be held liable if the appliance is used incorrectly is poorly maintained or not maintained at all or is not installed correctly (it is your responsibility to ensure that installation is carried out by a qualified installer)In particular we cannot be held liable for material damage intangible losses or physical injury resulting from an installation that does not comply with

Legal or regulatory requirements or provisions laid down by the local authoritiesNational or local regulations and special provisions relating to the installationOur manuals and installation instructions in particular in terms of regular maintenance of the appliances

Our warranty is limited to the replacement or repair of the parts found to be defective by our technical services team excluding labour transfer and transport costsOur warranty does not cover replacement or repair costs for parts that may become defective due to normal wear incorrect usage the intervention of unqualified third parties inadequate or insufficient supervision or maintenance a mains supply that is not appropriate or the use of unsuitable or poor quality fuelSmaller parts such as motors pumps electrical valves etc are guaranteed only if these parts have never been dismantledThe rights established in European Directive 9944EEC implemented by legal decree No 24 of 2 February 2002 and published in Official Journal No 57 of 8 March 2002 remain in force

11 Warranty

46 Gas 120 ACE 7717202 - v03 - 24062019

12 Spare parts

121 General

If inspection or maintenance work bring to light the need to replace a component in the boilerProvide the reference number given in the spare parts list when ordering a spare part

CautionOnly genuine spare parts may be used

122 Spare parts lists

1221 Exchanger

Fig41

MW-6000743-01

811x

7

7

4

2

16

3

10

119

65

1

13

12

18

14

19

15

18

17

Tab27

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

1 7699615 Complete exchanger x 1 7699614 Complete exchanger x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 47

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

2 S101564 Exchanger front plate x x x3 S54731 Exchanger inspection hatch insulation x x x4 S57241 Exchanger inspection hatch gasket x x x5 S100052 M4x10 self-locking screw (x20) x x x6 S54754 FURQ65 burner x 6 S57477 FURQ85 burner x x7 7623837 Set of 10 k NTC sensors x x x8 S54755 M6 nut (x20) x x x9 7659755 M4x10 screw (x10) x x x10 S53489 Electrode gasket (x10) x x x11 7692359 Ignition electrode x x x12 7631936 Flue gas flow pipe diameter 100 mm x x x13 7624643 NTC 2x20 k flue gas sensor with gasket x x x14 7624619 Ignition transformer x x x15 S56987 ZP M6x16 screw (x10) x x x16 7616253 Valve with support x x x17 7680596 Exchanger bracket x 17 7673616 Exchanger bracket x x18 7701752 Gasket diameter 100 mm (x5) x x x19 7632708 Earth electric clip (x2) x x x

1222 Gas circuit

Fig42

MW-6000744-01

3

2

5

6

9

4

8

10

7

12

11

1

14

13

13

12 Spare parts

48 Gas 120 ACE 7717202 - v03 - 24062019

Tab28Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 S101543 Silencer x 1 S101520 Silencer x 1 S101578 Silencer x2 S54777 Venturi gasket (x5) x 2 S59215 Gas valve-venturi gasket (x5) x 2 S101593 Gaskets (kit) x3 S101726 Fan RG 1481200-3633 x x 3 S100036 Fan RG 148 1200-3633-010202 x4 S101596 Gas valve VK4115v1386 x 4 S101597 Gas valve VK4115vb1012 x 4 S101510 Gas valve GB-ND 057 XP x5 S54766 Venturi x 5 S57488 Venturi x 5 S101595 Venturi VMS 45900450-010 x6 S59215 Gas valve-venturi gasket (x5) x x 7 S57827 Gas valve unit flange x8 S57828 268x22x25 O-ring (x5) x9 S101631 Diaphragm x10 7616249 Flue gas sensor cap (5x) x x x11 S56155 238x177x2 gasket (x20) x x x12 95760050 C HC M4-12 88 ZN3 screw x x x13 S48512 M5-10 screw (x10) x x x14 S101590 Silencer retaining clip x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 49

1223 Hydraulic circuit

Fig43

MW-6000745-01

1

14

6

9

11

8

12

5

37

9

10

2

4

13

Tab29Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7680598 Complete flow pipe x 1 7670807 Complete flow pipe x x2 7672557 Complete return pipe x x x3 7674076 Complete gas pipe x 3 7680434 Complete gas pipe x 3 7670720 Complete gas pipe x4 7698560 HUBA G38 pressure gauge x x x5 94994712 PVC pipe diameter 16x12 x x x6 7699357 Water deflector diameter 100 mm x x x7 94902073 Drain valve 12 x x x8 94918138 Air vent x x x9 95013064 44x32x2 mm green gasket x x x10 95013060 24x17x2 mm green gasket x x 10 95013062 30x21x12 mm green gasket x11 7692329 Condensate hose x x x13 7706103 Assembled siphon height 160 mm x 13 7706038 Assembled siphon height 250 mm x x14 7103731 Condensate drain pan gasket x x x

12 Spare parts

50 Gas 120 ACE 7717202 - v03 - 24062019

1224 Boiler body

Fig44

MW-6000746-01

2

2

1

6

3

34

5

4

Tab30Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7686377 Assembled frame x 1 7686139 Assembled frame x x2 7679958 117x34 handle diameter 65 mm x x x3 7676037 Wheel x x x4 7688301 Frame lateral gasket x 4 7688008 Frame lateral gasket x x5 7688353 Front panel gasket x 5 7688007 Front panel gasket x x6 7693874 R4-05 front panel lock x x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 51

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

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2040 Budaors

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Euro Gas Ltd

Unit 38 Southern Cross Business Park

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IE T +353 12868244

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Green Building

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RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

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Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

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E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 28: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

ImportantIf water treatment proves necessary Remeha recommends the following manufacturers

CillitClimalifeFernoxPermoSentinel

552 Flushing new installations and installations less than 6 months old

Before filling the heating installation it is essential to remove any debris (copper caulking soldering flux) from the installation

1 Clean the installation with a powerful universal cleaner2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

553 Flushing an existing installation

Before filling the heating installation it is essential to remove any sludge deposits which have accumulated in the heating circuit over the years

1 Remove any sludge from the installation2 Flush the installation with at least 3 times the volume of water

contained in the central heating system (until the water runs clear and shows no impurities)

554 Connecting the heating circuit

ImportantAbide by the information shown in the hydraulic diagrams

The pipes are not provided

Caution

The heating pipe must be mounted in accordance with the provisions applicableIf installing stop valves position the filldrain valve and the expansion vessel between the stop valves and the boilerAlways install a safety valve calibrated to a maximum of 4 bar on the heating circuit The safety valve can be connected to a venting pot The safety valve must not be used to drain the heating circuitIt is recommended to install a sludge collector on all installations

SeeIf fitting with a hydraulic kit (low-loss header or plate heat exchanger) refer to the kit manual

555 Connecting the condensate discharge pipe

Use a neutralisation station to achieve a pH value of more than 65 (in accordance with prevailing regulations)Discharge the condensates directly into the mains drainage system via a siphon In view of the acidity level (pH 25 to 3) only condensate discharge pipes made from compatible plastic should be used

5 Installation

28 Gas 120 ACE 7717202 - v03 - 24062019

The condensate discharge pipe is located at the rear of the boiler

Do not block the condensate discharge pipeTilt the discharge pipe by at least 30 mm per metre and make sure there are no low points that could cause the accumulation of water or deposits Maximum horizontal length 5 metresDo not drain condensation water into a roof gutterConnect the condensate discharge pipe in accordance with prevailing standardsIt is preferable to use the condensate neutralisers recommended by the manufacturer of the boiler

1 Connect a plastic hose to the condensate discharge outlet (DN 22)2 Insert the other end of the hose into a waste water discharge outlet

556 Filling the siphon

DangerIf operating with the siphon empty combustion products will escape into the premises in which the boiler is installed

1 Pour water into the flue gas pipe (central pipe) until it flows out of the condensate discharge pipe

56 Gas connection

Danger

Close the main gas valve before starting work on the gas pipesThe diameters of the pipes must be defined in accordance with the standards in force in your countryConnect the gas pipe in accordance with prevailing standards and regulationsEnsure that there is no dust in the gas pipe

The gas pipes are not providedIn old gas networks we recommend fitting a gas filter with a low pressure drop upstream of this point

1 Clean the gas supply pipe2 Remove the anti-dust plug located on the boilers gas inlet3 Mount a gas stop valve (not provided) on the boilers gas inlet4 Connect the gas inlet pipe to the gas stop valve

Fig20

MW-2000825-01

pH gt 65

Oslash32A

Fig21

MW-6000742-02

1

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 29

5 Close the gas supply valve before testing the pressure on the gas supply pipe to avoid damage caused by excessive pressure on the gas regulator Decompress before reopening the valve

561 Gas supply

Before mounting check that the gas meter has sufficient capacity (in m3h) To do this you should bear in mind the consumption of all appliances If the capacity of the gas meter is too low inform the gas supply companyThe boilers are preset to run on G20 gas (gas H) and can be adapted to run with the following gases

G31 (gas P)G3031 (gas BP)

ImportantTo use a different type of gas contact an approved assistance service

57 Air supplyflue gas outlet connections

571 Classification

The discharge and intake pipes must be certified for the appropriate configuration and must meet the requirements of the prevailing installation standards in the country

Tab20 Configurations and recommendations for the flue systemConfiguration Principle DescriptionB23B23P

AD-3001055-01

Connection to a chimney using a CE connection kit (single pipe in a flue comshybustion air taken from the boiler room)Follow the connection instructions and adhere to the recommended maximum pipe lengthsComply with the applicable regulations governing ventilation and cross-secshytions for room aeration vents

B33

MW-5000925-1

Room-ventilated version

Without down-draught diverterJoint flue gas discharge via the roof with guaranteed natural draft (at all times underpressure in the joint discharge duct)Flue gas discharge rinsed with air air from the installation area (special conshystruction)The IP rating of the boiler is lowered to IP20

C13C13X

AD-3001056-01

Airflue gas connection using concentric pipes to a horizontal terminal (so-called forced flue) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

5 Installation

30 Gas 120 ACE 7717202 - v03 - 24062019

Configuration Principle DescriptionC33C33X

AD-3001057-01

Airflue gas connection using concentric pipes to a vertical terminal (roof outshylet) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

C43C43X

MW-2000822-01

Airflue gas connection via concentric pipes to a common pipe supplying severshyal heating applicationsThe common pipe has a roof connection to a vertical terminal that draws in the air required for combustion and discharges the combustion productsUse of CE-certified system

C53

AD-3001058-02

Airflue gas connection via separate pipes lead to two separate terminals One draws in the air required for combustion and the other discharges the combusshytion productsThe outlets may be in different pressure zonesDo not install the air supply and discharge on opposing surfacesUse of CE-certified system

C63C63X

The installer is responsible for installing a CE-certified discharge system that complies with the manufacturers recommendations (temperature flow pressure etc)

The maximum pressure drop in the pipes ΔP must not exceed the values given in the table below The pipes must be certified for this type of use and for a temperature of more than 100 degC The terminal part of the flue gas pipe must be certified as complying with the EN 1856-1 StandardIf installing discharge and intake pipes not supplied by Remeha these must be certified for the intended type of use and their maximum pressure drop must be compliant

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 31

Configuration Principle DescriptionC83C83X

MW-2000823-01

Flue gas connection to a collective flue for sealed boilers The air supply is inshydividual via a terminal coming from outside the buildingA concentric pipe can be used to both supply the boiler with combustion air and connect to the collective flue gas discharge systemThe chimney or flue gas pipe must be suitable for such use and the system CE certified

C93C93X

AD-3001059-01

Airflue gas connection via concentric pipes in an existing chimney The air supshyply in the chimney may be installed via the existing channel or via tubing Flue gas discharge and air intake are via a vertical terminal at the top of the chimney

The air intake and discharge must be close enough to be in the same pressure zoneThe minimum cross-sections are shown in the table belowThe flue system must be suitable for the intended use and the system CE certishyfied

Tab21 Minimum dimensions of the duct or pipe C93 C93X

Version (D) Without air supply With air supplyRigid 80 mm Oslash 130 mm 130 x 130 mm Oslash 140 mm 130 x 130 mmRigid 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmRigid 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmFlexible 80 mm Oslash 130 mm 130 x 130 mm Oslash 145 mm 130 x 130 mmFlexible 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmFlexible 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmConcentric 80125 mm Oslash 145 mm 145 x 145 mm Oslash 145 mm 145 x 145 mmConcentric 100150 mm Oslash 170 mm 170 x 170 mm Oslash 170 mm 170 x 170 mmConcentric 150200 mm Oslash 270 mm 270 x 270 mm - -

ImportantThe duct must comply with the air density requirements of the local regulations

Important

Only original components are authorised for connection to the boiler and for the terminalThe clear section must comply with the standardThe chimney must be swept before installing the discharge flue

CautionEnsure that the flue gas discharge pipes are securely attached to the wall with suitable retaining flanges to prevent any damage and guarantee the tightness of every gasket in the circuit

CautionThe minimum gradient of the condensates discharge pipe from the boiler to the waste water discharge must be 1 cm per linear metre

Fig22 Minimum dimensions of the duct or pipe C93 C93X

AD-3000330-03

D

Oslash

D

5 Installation

32 Gas 120 ACE 7717202 - v03 - 24062019

572 Lengths of the airflue gas pipes

The maximum lengths (Lmax) given in the table are valid for pipes in which the horizontal sections do not exceed one metre in total For each additional metre of horizontal pipe a multiplication coefficient of 12 must be applied when calculating the total length L The total length L is calculated by adding the lengths of the straight airflue gas pipes and the equivalent lengths of the other componentsAlways ensure that L is less than Lmax

ImportantFor the list of flue gas system accessories and the equivalent lengths refer to the current price list

Tab22 Lengths of the airflue gas pipes in metresConfigurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 100 mm 26 24 19

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 110 mm 40 40 40

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 110 mm 295 24 175

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 80125 mm - - -

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 100150 mm 9 8 59

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 80125 mm - - -

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 100150 mm 115 10 94

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 80125 mm over 2x80 mm

- - -

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 100150 mm over 2x100 mm

23 175 Air 11Flue gases 5

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm110 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 110150 mm110 mm

16 132 10

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 33

Configurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 110150 mm110 mm

165 135 94

Tab23 PPS pipe reduction for each element used

Diameter 80 mmSingle

80125 mmConcentric

100 mmSingle

100150 mmConcentric

45deg elbow 12 m 10 m 11 m 10 m87deg elbow 19 m 15 m 20 m 37 mStraight inspection tube 03 m 06 m - 10 m87deg inspection elbow 19 m 20 m 48 m -Inspection T 42 m 27 m 56 m 25 mInspection tube for flexible pipe 03 m - 05 m -

573 Dimensions of flue gas outlet pipe

WarningThe pipes connected to the flue gas adapter must satisfy the following dimension requirements

d1 External dimensions of flue gas outlet pipe

Tab24 Dimensions of pipe d1 (min-max)80 mm 793 - 803 mm100 mm 993 - 1003 mm150 mm 149 - 151 mm

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipe

Tab25 Dimensions of pipe d1 (min-max) D1 (min-max)8080 mm 793 - 803 mm 793 - 803 mm100100 mm 993 - 1003 mm 993 - 1003 mm110110 mm 1093 - 1103 mm 1093 - 1103 mm150150 mm 149 - 151 mm 149 - 151 mm

Fig23 Dimensions of open connection

AD-3001094-01

oslashd1

Fig24 Dimensions of parallel connection

AD-3000963-01

oslashd1 oslashD1

5 Installation

34 Gas 120 ACE 7717202 - v03 - 24062019

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipeL1 Length difference between flue gas outlet pipe and air supply pipe

Tab26 Dimensions of pipe d1 (min-max) D1 (min-max) L1

(1) (min-max)80125 mm 793 - 803 mm 124 - 1255 mm 0 - 15 mm100150 mm 993 - 1003 mm 149 - 151 mm 0 - 15 mm

(1) Shorten the inner pipe if the length difference is too great

574 Connection to the flue gas pipe

At delivery the flue gas outletair supply is fixed inside the boiler

1 Using a long tool unlock and remove the boilers front door2 Remove the boiler outlet

3 Two options for connection to the flue gas pipe

Option Description3a Connection to a vertical flue gas pipe Position the flue gas

outletair supply directly at the boiler outlet3b Connection to a horizontal flue gas pipe Insert an outlet elshy

bow ( not supplied) before the flue gas outletair supply

ImportantLubricate the gaskets on the flue system during assembly

Fig25 Dimensions of concentric connection

AD-3000962-01

oslashd1

L1

oslashD1

Fig26

MW-2000867-02

1

2

1

Fig27

3a 3b

MW-2000868-01

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 35

Fastening the coaxial pipes Fasten the intake pipes with two galvanised Oslash 42 mm screws with a maximum length of 16 mm

CautionBefore fixing the screws make sure that at least 45 cm of pipe is inserted in the gasket of the other pipe

WarningGuarantee a minimum pipe slope towards the boiler of at least 5 cm per metre

Fig28 Fastening the coaxial pipes using screws

BO-0000030

16 mm

5 Installation

36 Gas 120 ACE 7717202 - v03 - 24062019

6 Operation

61 Settings

To configure the installation and use the boiler please refer to the control unit manual

6 Operation

7717202 - v03 - 24062019 Gas 120 ACE 37

7 Maintenance

71 General

We recommend having the boiler inspected and serviced at regular intervals

CautionDo not neglect to service the boiler Contact a qualified professional or take out a maintenance contract for the obligatory annual servicing of the boilerFailure to service the appliance voids the warranty

Danger of electric shockBefore service work is started the boiler has to be de-energised and secured from accidentally being switched back on

CautionHave an inspection carried out and the flues swept at least once a year or more depending on the regulations in force in your country

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

CautionAfter maintenance or repair work check the entire heating system to ensure that there are no leaks

CautionOnly genuine spare parts may be used

72 Specific maintenance operations

721 Cleaning the siphon

1 Remove the flue gas outlet discharge pipe

2 Remove the condensate discharge pipe 3 Remove the screw from the siphon

Fig29

1

MW-2000903-01

Fig30

2

3

MW-2000904-01

7 Maintenance

38 Gas 120 ACE 7717202 - v03 - 24062019

4 Pull the siphon downwards to disengage it and pivot it to release it

5 Flush the siphon 6 Drain the siphon

7 Fill the siphon with clean water up to the mark 8 Lubricate the siphon gasket9 Re-engage the siphon and refit the screw

10 Refit the two pipes

722 Checking the ionisation current

1 Check the ionisation current at full load and at low loadThe value is stable after 1 minute

2 Clean or replace the ionisationignition electrode if the value is lower than 4 microA

Fig31

4

90deg

MW-2000905-01

Fig32

MW-2000843-01

Fig33

MW-2000844-01

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 39

723 Replace the ionizationignition electrode

The ionizationignition electrode must be replaced if

The ionization current is lt 4 microAThe electrode is damaged or worn

1 Remove the plug of the electrode from the igniter

ImportantThe ignition cable is fixed to the electrode and therefore may not be removed

2 Remove the two screws3 Remove the entire component4 Fit the new ionizationignition electrode with a new seal5 Reassemble the unit in the reverse order to disassembly

724 Servicing the forced flue connection pipes

1 Open the inspection hatches or remove the pipes2 Check that the air supply and discharge pipes are not blocked

If necessary clean the discharge pipe3 Check the tightness of the flue gas system4 Replace the tightness gaskets and if necessary any sections of pipe

until tightness is perfect

725 Checking the burner and cleaning the heat exchanger

1 Remove the air inlet flue on the venturi2 Loosen the gland on the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

Fig34

AD-0000088-01

4

1

2

3

Fig35 Removing the fan

AD-3001178-01

1

3

4

2

5

7 Maintenance

40 Gas 120 ACE 7717202 - v03 - 24062019

6 Remove the front plate from the heat exchanger7 Carefully lift the front plate including the burner and fan away from

the heat exchanger

8 Use a vacuum cleaner fitted with a special endpiece (accessory) to clean the top part of the heat exchanger (combustion chamber)

9 Vacuum again without the top brush on the end piece10 Clean the lower section of the heat exchanger with the special

cleaning blade (accessory)11 Check (eg using a mirror) whether any visible contamination has

been left behind If it has remove it with the vacuum cleaner12 Check that the burner cover of the dismantled burner is free from

cracks andor damage If not replace the burnerServicing the burner is usually not necessary it is self-cleaning Use compressed air to carefully blow away any dust

13 Reassemble the unit in reverse order

CautionRemember to reconnect the fan plugCheck that the gasket is correctly positioned between the mixing elbow and the heat exchanger (the gasket must lie absolutely flat in the appropriate groove to ensure that no gas can leak)Tighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the front plate nuts with a torque wrench to the firmness of 10 Nm

14 Open the gas supply and switch the power supply to the boiler back on

Fig36 Removing the front plate fan and burner

AD-3001179-01

6

7

Fig37 Cleaning the heat exchanger

AD-3001180-01

10

8 9

12

11

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 41

726 Checking the non-return valve

1 Remove the air inlet pipe from the venturi2 Unscrew the gland of the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

6 Dismantle the fan7 Remove the fan together with the gas valve unit8 Inspect the non-return valve and replace it in the event of a defect or

damage or if the maintenance kit contains a non-return valve9 Reassemble in the reverse order

CautionRemember to reconnect the fan plugTighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the two fan nuts with a torque wrench to the firmness of 38 Nm

Fig38 Disconnecting the fan

AD-3001178-01

1

3

4

2

5

Fig39 Checking the non-return valve

AD-3001181-01

2x

68

7

9

7 Maintenance

42 Gas 120 ACE 7717202 - v03 - 24062019

8 Decommissioning

81 Decommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

To switch off the boiler temporarily or permanently proceed as follows

1 Switch the boiler off2 Cut the electrical power to the boiler3 Close the gas valve on the boiler4 Drain the central heating system or ensure frost protection5 Close the door of the boiler to prevent air circulating inside it6 Remove the pipe connecting the boiler to the chimney and close the

nozzle with a plug

82 Recommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

Should it prove necessary to carry out the recommissioning of the boiler proceed as follows

1 Re-establish electrical power to the boiler2 Fit and check the flue gas pipe3 Fill the siphon with water4 Fill the central heating system5 Open the boiler gas valve6 Start up the boiler

8 Decommissioning

7717202 - v03 - 24062019 Gas 120 ACE 43

9 Disposal and recyclingCautionOnly qualified professionals are permitted to remove and dispose of the boiler in accordance with local and national regulations

If you need to remove the boiler proceed as follows

1 Switch off the boiler2 Cut the power supply to the boiler3 Close the main gas valve4 Close the water mains5 Close the gas valve on the boiler6 Drain the installation7 Remove the airflue gas pipes8 Disconnect all pipes9 Dismantle the boiler

Fig40

MW-3000179-03

9 Disposal and recycling

44 Gas 120 ACE 7717202 - v03 - 24062019

10 Environmental

101 Energy savings

Energy-saving advice

Do not block ventilation outletsDo not cover the radiators Do not hang curtains in front of the radiatorsInstall reflective panels behind the radiators to prevent heat lossesInsulate the pipes in rooms that are not heated (cellars and lofts)Close the radiators in rooms not in useDo not run hot (or cold) water pointlesslyInstall an energy-saving shower head which can save up to 40 energyTake showers rather than baths A bath consumes twice as much water and energy

102 Room thermostat and settings

Various models of room thermostat are available The type of thermostat used and the parameter selected impact total energy consumption

A modulating regulator which may be combined with thermostatic valves is eco-friendly in terms of energy and offers an excellent level of comfort This combination allows you to set the temperature separately for each room However do not install thermostatic radiator valves in the room in which the room thermostat is locatedComplete opening and closing of the thermostatic radiator valves causes undesirable variations in temperature Therefore these must be openedclosed progressivelySet the room thermostat to a temperature of approximately 20degC to reduce heating costs and energy consumptionLower the thermostat setting to approximately 16degC at night or when you are not at home This reduces heating costs and energy consumptionLower the thermostat setting well before airing the roomsSet the water temperature to a lower level in summer than in winter (eg 60degC and 80degC respectively) when an ONOFF thermostatis usedWhen clock thermostats and programmable thermostats are to be set do not forget to take any holidays and days when no one is at home into account

10 Environmental

7717202 - v03 - 24062019 Gas 120 ACE 45

11 Warranty

111 General

We would like to thank you for buying one of our appliances and for your trust in our productIn order to ensure continued safe and efficient operation we recommend that the product is regularly inspected and maintainedYour installer and our service department can assist with this

112 Terms of warranty

The following provisions do not affect the application in favour of the buyer of the legal provisions with regard to hidden defects that are applicable in the buyers countryThis appliance comes with a warranty that covers all manufacturing faults the warranty period will commence on the date of purchase stated on the installers invoiceThe warranty period is stated in our price listAs a manufacturer we can by no means be held liable if the appliance is used incorrectly is poorly maintained or not maintained at all or is not installed correctly (it is your responsibility to ensure that installation is carried out by a qualified installer)In particular we cannot be held liable for material damage intangible losses or physical injury resulting from an installation that does not comply with

Legal or regulatory requirements or provisions laid down by the local authoritiesNational or local regulations and special provisions relating to the installationOur manuals and installation instructions in particular in terms of regular maintenance of the appliances

Our warranty is limited to the replacement or repair of the parts found to be defective by our technical services team excluding labour transfer and transport costsOur warranty does not cover replacement or repair costs for parts that may become defective due to normal wear incorrect usage the intervention of unqualified third parties inadequate or insufficient supervision or maintenance a mains supply that is not appropriate or the use of unsuitable or poor quality fuelSmaller parts such as motors pumps electrical valves etc are guaranteed only if these parts have never been dismantledThe rights established in European Directive 9944EEC implemented by legal decree No 24 of 2 February 2002 and published in Official Journal No 57 of 8 March 2002 remain in force

11 Warranty

46 Gas 120 ACE 7717202 - v03 - 24062019

12 Spare parts

121 General

If inspection or maintenance work bring to light the need to replace a component in the boilerProvide the reference number given in the spare parts list when ordering a spare part

CautionOnly genuine spare parts may be used

122 Spare parts lists

1221 Exchanger

Fig41

MW-6000743-01

811x

7

7

4

2

16

3

10

119

65

1

13

12

18

14

19

15

18

17

Tab27

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

1 7699615 Complete exchanger x 1 7699614 Complete exchanger x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 47

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

2 S101564 Exchanger front plate x x x3 S54731 Exchanger inspection hatch insulation x x x4 S57241 Exchanger inspection hatch gasket x x x5 S100052 M4x10 self-locking screw (x20) x x x6 S54754 FURQ65 burner x 6 S57477 FURQ85 burner x x7 7623837 Set of 10 k NTC sensors x x x8 S54755 M6 nut (x20) x x x9 7659755 M4x10 screw (x10) x x x10 S53489 Electrode gasket (x10) x x x11 7692359 Ignition electrode x x x12 7631936 Flue gas flow pipe diameter 100 mm x x x13 7624643 NTC 2x20 k flue gas sensor with gasket x x x14 7624619 Ignition transformer x x x15 S56987 ZP M6x16 screw (x10) x x x16 7616253 Valve with support x x x17 7680596 Exchanger bracket x 17 7673616 Exchanger bracket x x18 7701752 Gasket diameter 100 mm (x5) x x x19 7632708 Earth electric clip (x2) x x x

1222 Gas circuit

Fig42

MW-6000744-01

3

2

5

6

9

4

8

10

7

12

11

1

14

13

13

12 Spare parts

48 Gas 120 ACE 7717202 - v03 - 24062019

Tab28Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 S101543 Silencer x 1 S101520 Silencer x 1 S101578 Silencer x2 S54777 Venturi gasket (x5) x 2 S59215 Gas valve-venturi gasket (x5) x 2 S101593 Gaskets (kit) x3 S101726 Fan RG 1481200-3633 x x 3 S100036 Fan RG 148 1200-3633-010202 x4 S101596 Gas valve VK4115v1386 x 4 S101597 Gas valve VK4115vb1012 x 4 S101510 Gas valve GB-ND 057 XP x5 S54766 Venturi x 5 S57488 Venturi x 5 S101595 Venturi VMS 45900450-010 x6 S59215 Gas valve-venturi gasket (x5) x x 7 S57827 Gas valve unit flange x8 S57828 268x22x25 O-ring (x5) x9 S101631 Diaphragm x10 7616249 Flue gas sensor cap (5x) x x x11 S56155 238x177x2 gasket (x20) x x x12 95760050 C HC M4-12 88 ZN3 screw x x x13 S48512 M5-10 screw (x10) x x x14 S101590 Silencer retaining clip x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 49

1223 Hydraulic circuit

Fig43

MW-6000745-01

1

14

6

9

11

8

12

5

37

9

10

2

4

13

Tab29Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7680598 Complete flow pipe x 1 7670807 Complete flow pipe x x2 7672557 Complete return pipe x x x3 7674076 Complete gas pipe x 3 7680434 Complete gas pipe x 3 7670720 Complete gas pipe x4 7698560 HUBA G38 pressure gauge x x x5 94994712 PVC pipe diameter 16x12 x x x6 7699357 Water deflector diameter 100 mm x x x7 94902073 Drain valve 12 x x x8 94918138 Air vent x x x9 95013064 44x32x2 mm green gasket x x x10 95013060 24x17x2 mm green gasket x x 10 95013062 30x21x12 mm green gasket x11 7692329 Condensate hose x x x13 7706103 Assembled siphon height 160 mm x 13 7706038 Assembled siphon height 250 mm x x14 7103731 Condensate drain pan gasket x x x

12 Spare parts

50 Gas 120 ACE 7717202 - v03 - 24062019

1224 Boiler body

Fig44

MW-6000746-01

2

2

1

6

3

34

5

4

Tab30Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7686377 Assembled frame x 1 7686139 Assembled frame x x2 7679958 117x34 handle diameter 65 mm x x x3 7676037 Wheel x x x4 7688301 Frame lateral gasket x 4 7688008 Frame lateral gasket x x5 7688353 Front panel gasket x 5 7688007 Front panel gasket x x6 7693874 R4-05 front panel lock x x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 51

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

E toimistoestsystemsfi

Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 29: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

The condensate discharge pipe is located at the rear of the boiler

Do not block the condensate discharge pipeTilt the discharge pipe by at least 30 mm per metre and make sure there are no low points that could cause the accumulation of water or deposits Maximum horizontal length 5 metresDo not drain condensation water into a roof gutterConnect the condensate discharge pipe in accordance with prevailing standardsIt is preferable to use the condensate neutralisers recommended by the manufacturer of the boiler

1 Connect a plastic hose to the condensate discharge outlet (DN 22)2 Insert the other end of the hose into a waste water discharge outlet

556 Filling the siphon

DangerIf operating with the siphon empty combustion products will escape into the premises in which the boiler is installed

1 Pour water into the flue gas pipe (central pipe) until it flows out of the condensate discharge pipe

56 Gas connection

Danger

Close the main gas valve before starting work on the gas pipesThe diameters of the pipes must be defined in accordance with the standards in force in your countryConnect the gas pipe in accordance with prevailing standards and regulationsEnsure that there is no dust in the gas pipe

The gas pipes are not providedIn old gas networks we recommend fitting a gas filter with a low pressure drop upstream of this point

1 Clean the gas supply pipe2 Remove the anti-dust plug located on the boilers gas inlet3 Mount a gas stop valve (not provided) on the boilers gas inlet4 Connect the gas inlet pipe to the gas stop valve

Fig20

MW-2000825-01

pH gt 65

Oslash32A

Fig21

MW-6000742-02

1

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 29

5 Close the gas supply valve before testing the pressure on the gas supply pipe to avoid damage caused by excessive pressure on the gas regulator Decompress before reopening the valve

561 Gas supply

Before mounting check that the gas meter has sufficient capacity (in m3h) To do this you should bear in mind the consumption of all appliances If the capacity of the gas meter is too low inform the gas supply companyThe boilers are preset to run on G20 gas (gas H) and can be adapted to run with the following gases

G31 (gas P)G3031 (gas BP)

ImportantTo use a different type of gas contact an approved assistance service

57 Air supplyflue gas outlet connections

571 Classification

The discharge and intake pipes must be certified for the appropriate configuration and must meet the requirements of the prevailing installation standards in the country

Tab20 Configurations and recommendations for the flue systemConfiguration Principle DescriptionB23B23P

AD-3001055-01

Connection to a chimney using a CE connection kit (single pipe in a flue comshybustion air taken from the boiler room)Follow the connection instructions and adhere to the recommended maximum pipe lengthsComply with the applicable regulations governing ventilation and cross-secshytions for room aeration vents

B33

MW-5000925-1

Room-ventilated version

Without down-draught diverterJoint flue gas discharge via the roof with guaranteed natural draft (at all times underpressure in the joint discharge duct)Flue gas discharge rinsed with air air from the installation area (special conshystruction)The IP rating of the boiler is lowered to IP20

C13C13X

AD-3001056-01

Airflue gas connection using concentric pipes to a horizontal terminal (so-called forced flue) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

5 Installation

30 Gas 120 ACE 7717202 - v03 - 24062019

Configuration Principle DescriptionC33C33X

AD-3001057-01

Airflue gas connection using concentric pipes to a vertical terminal (roof outshylet) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

C43C43X

MW-2000822-01

Airflue gas connection via concentric pipes to a common pipe supplying severshyal heating applicationsThe common pipe has a roof connection to a vertical terminal that draws in the air required for combustion and discharges the combustion productsUse of CE-certified system

C53

AD-3001058-02

Airflue gas connection via separate pipes lead to two separate terminals One draws in the air required for combustion and the other discharges the combusshytion productsThe outlets may be in different pressure zonesDo not install the air supply and discharge on opposing surfacesUse of CE-certified system

C63C63X

The installer is responsible for installing a CE-certified discharge system that complies with the manufacturers recommendations (temperature flow pressure etc)

The maximum pressure drop in the pipes ΔP must not exceed the values given in the table below The pipes must be certified for this type of use and for a temperature of more than 100 degC The terminal part of the flue gas pipe must be certified as complying with the EN 1856-1 StandardIf installing discharge and intake pipes not supplied by Remeha these must be certified for the intended type of use and their maximum pressure drop must be compliant

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 31

Configuration Principle DescriptionC83C83X

MW-2000823-01

Flue gas connection to a collective flue for sealed boilers The air supply is inshydividual via a terminal coming from outside the buildingA concentric pipe can be used to both supply the boiler with combustion air and connect to the collective flue gas discharge systemThe chimney or flue gas pipe must be suitable for such use and the system CE certified

C93C93X

AD-3001059-01

Airflue gas connection via concentric pipes in an existing chimney The air supshyply in the chimney may be installed via the existing channel or via tubing Flue gas discharge and air intake are via a vertical terminal at the top of the chimney

The air intake and discharge must be close enough to be in the same pressure zoneThe minimum cross-sections are shown in the table belowThe flue system must be suitable for the intended use and the system CE certishyfied

Tab21 Minimum dimensions of the duct or pipe C93 C93X

Version (D) Without air supply With air supplyRigid 80 mm Oslash 130 mm 130 x 130 mm Oslash 140 mm 130 x 130 mmRigid 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmRigid 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmFlexible 80 mm Oslash 130 mm 130 x 130 mm Oslash 145 mm 130 x 130 mmFlexible 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmFlexible 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmConcentric 80125 mm Oslash 145 mm 145 x 145 mm Oslash 145 mm 145 x 145 mmConcentric 100150 mm Oslash 170 mm 170 x 170 mm Oslash 170 mm 170 x 170 mmConcentric 150200 mm Oslash 270 mm 270 x 270 mm - -

ImportantThe duct must comply with the air density requirements of the local regulations

Important

Only original components are authorised for connection to the boiler and for the terminalThe clear section must comply with the standardThe chimney must be swept before installing the discharge flue

CautionEnsure that the flue gas discharge pipes are securely attached to the wall with suitable retaining flanges to prevent any damage and guarantee the tightness of every gasket in the circuit

CautionThe minimum gradient of the condensates discharge pipe from the boiler to the waste water discharge must be 1 cm per linear metre

Fig22 Minimum dimensions of the duct or pipe C93 C93X

AD-3000330-03

D

Oslash

D

5 Installation

32 Gas 120 ACE 7717202 - v03 - 24062019

572 Lengths of the airflue gas pipes

The maximum lengths (Lmax) given in the table are valid for pipes in which the horizontal sections do not exceed one metre in total For each additional metre of horizontal pipe a multiplication coefficient of 12 must be applied when calculating the total length L The total length L is calculated by adding the lengths of the straight airflue gas pipes and the equivalent lengths of the other componentsAlways ensure that L is less than Lmax

ImportantFor the list of flue gas system accessories and the equivalent lengths refer to the current price list

Tab22 Lengths of the airflue gas pipes in metresConfigurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 100 mm 26 24 19

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 110 mm 40 40 40

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 110 mm 295 24 175

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 80125 mm - - -

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 100150 mm 9 8 59

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 80125 mm - - -

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 100150 mm 115 10 94

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 80125 mm over 2x80 mm

- - -

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 100150 mm over 2x100 mm

23 175 Air 11Flue gases 5

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm110 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 110150 mm110 mm

16 132 10

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 33

Configurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 110150 mm110 mm

165 135 94

Tab23 PPS pipe reduction for each element used

Diameter 80 mmSingle

80125 mmConcentric

100 mmSingle

100150 mmConcentric

45deg elbow 12 m 10 m 11 m 10 m87deg elbow 19 m 15 m 20 m 37 mStraight inspection tube 03 m 06 m - 10 m87deg inspection elbow 19 m 20 m 48 m -Inspection T 42 m 27 m 56 m 25 mInspection tube for flexible pipe 03 m - 05 m -

573 Dimensions of flue gas outlet pipe

WarningThe pipes connected to the flue gas adapter must satisfy the following dimension requirements

d1 External dimensions of flue gas outlet pipe

Tab24 Dimensions of pipe d1 (min-max)80 mm 793 - 803 mm100 mm 993 - 1003 mm150 mm 149 - 151 mm

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipe

Tab25 Dimensions of pipe d1 (min-max) D1 (min-max)8080 mm 793 - 803 mm 793 - 803 mm100100 mm 993 - 1003 mm 993 - 1003 mm110110 mm 1093 - 1103 mm 1093 - 1103 mm150150 mm 149 - 151 mm 149 - 151 mm

Fig23 Dimensions of open connection

AD-3001094-01

oslashd1

Fig24 Dimensions of parallel connection

AD-3000963-01

oslashd1 oslashD1

5 Installation

34 Gas 120 ACE 7717202 - v03 - 24062019

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipeL1 Length difference between flue gas outlet pipe and air supply pipe

Tab26 Dimensions of pipe d1 (min-max) D1 (min-max) L1

(1) (min-max)80125 mm 793 - 803 mm 124 - 1255 mm 0 - 15 mm100150 mm 993 - 1003 mm 149 - 151 mm 0 - 15 mm

(1) Shorten the inner pipe if the length difference is too great

574 Connection to the flue gas pipe

At delivery the flue gas outletair supply is fixed inside the boiler

1 Using a long tool unlock and remove the boilers front door2 Remove the boiler outlet

3 Two options for connection to the flue gas pipe

Option Description3a Connection to a vertical flue gas pipe Position the flue gas

outletair supply directly at the boiler outlet3b Connection to a horizontal flue gas pipe Insert an outlet elshy

bow ( not supplied) before the flue gas outletair supply

ImportantLubricate the gaskets on the flue system during assembly

Fig25 Dimensions of concentric connection

AD-3000962-01

oslashd1

L1

oslashD1

Fig26

MW-2000867-02

1

2

1

Fig27

3a 3b

MW-2000868-01

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 35

Fastening the coaxial pipes Fasten the intake pipes with two galvanised Oslash 42 mm screws with a maximum length of 16 mm

CautionBefore fixing the screws make sure that at least 45 cm of pipe is inserted in the gasket of the other pipe

WarningGuarantee a minimum pipe slope towards the boiler of at least 5 cm per metre

Fig28 Fastening the coaxial pipes using screws

BO-0000030

16 mm

5 Installation

36 Gas 120 ACE 7717202 - v03 - 24062019

6 Operation

61 Settings

To configure the installation and use the boiler please refer to the control unit manual

6 Operation

7717202 - v03 - 24062019 Gas 120 ACE 37

7 Maintenance

71 General

We recommend having the boiler inspected and serviced at regular intervals

CautionDo not neglect to service the boiler Contact a qualified professional or take out a maintenance contract for the obligatory annual servicing of the boilerFailure to service the appliance voids the warranty

Danger of electric shockBefore service work is started the boiler has to be de-energised and secured from accidentally being switched back on

CautionHave an inspection carried out and the flues swept at least once a year or more depending on the regulations in force in your country

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

CautionAfter maintenance or repair work check the entire heating system to ensure that there are no leaks

CautionOnly genuine spare parts may be used

72 Specific maintenance operations

721 Cleaning the siphon

1 Remove the flue gas outlet discharge pipe

2 Remove the condensate discharge pipe 3 Remove the screw from the siphon

Fig29

1

MW-2000903-01

Fig30

2

3

MW-2000904-01

7 Maintenance

38 Gas 120 ACE 7717202 - v03 - 24062019

4 Pull the siphon downwards to disengage it and pivot it to release it

5 Flush the siphon 6 Drain the siphon

7 Fill the siphon with clean water up to the mark 8 Lubricate the siphon gasket9 Re-engage the siphon and refit the screw

10 Refit the two pipes

722 Checking the ionisation current

1 Check the ionisation current at full load and at low loadThe value is stable after 1 minute

2 Clean or replace the ionisationignition electrode if the value is lower than 4 microA

Fig31

4

90deg

MW-2000905-01

Fig32

MW-2000843-01

Fig33

MW-2000844-01

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 39

723 Replace the ionizationignition electrode

The ionizationignition electrode must be replaced if

The ionization current is lt 4 microAThe electrode is damaged or worn

1 Remove the plug of the electrode from the igniter

ImportantThe ignition cable is fixed to the electrode and therefore may not be removed

2 Remove the two screws3 Remove the entire component4 Fit the new ionizationignition electrode with a new seal5 Reassemble the unit in the reverse order to disassembly

724 Servicing the forced flue connection pipes

1 Open the inspection hatches or remove the pipes2 Check that the air supply and discharge pipes are not blocked

If necessary clean the discharge pipe3 Check the tightness of the flue gas system4 Replace the tightness gaskets and if necessary any sections of pipe

until tightness is perfect

725 Checking the burner and cleaning the heat exchanger

1 Remove the air inlet flue on the venturi2 Loosen the gland on the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

Fig34

AD-0000088-01

4

1

2

3

Fig35 Removing the fan

AD-3001178-01

1

3

4

2

5

7 Maintenance

40 Gas 120 ACE 7717202 - v03 - 24062019

6 Remove the front plate from the heat exchanger7 Carefully lift the front plate including the burner and fan away from

the heat exchanger

8 Use a vacuum cleaner fitted with a special endpiece (accessory) to clean the top part of the heat exchanger (combustion chamber)

9 Vacuum again without the top brush on the end piece10 Clean the lower section of the heat exchanger with the special

cleaning blade (accessory)11 Check (eg using a mirror) whether any visible contamination has

been left behind If it has remove it with the vacuum cleaner12 Check that the burner cover of the dismantled burner is free from

cracks andor damage If not replace the burnerServicing the burner is usually not necessary it is self-cleaning Use compressed air to carefully blow away any dust

13 Reassemble the unit in reverse order

CautionRemember to reconnect the fan plugCheck that the gasket is correctly positioned between the mixing elbow and the heat exchanger (the gasket must lie absolutely flat in the appropriate groove to ensure that no gas can leak)Tighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the front plate nuts with a torque wrench to the firmness of 10 Nm

14 Open the gas supply and switch the power supply to the boiler back on

Fig36 Removing the front plate fan and burner

AD-3001179-01

6

7

Fig37 Cleaning the heat exchanger

AD-3001180-01

10

8 9

12

11

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 41

726 Checking the non-return valve

1 Remove the air inlet pipe from the venturi2 Unscrew the gland of the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

6 Dismantle the fan7 Remove the fan together with the gas valve unit8 Inspect the non-return valve and replace it in the event of a defect or

damage or if the maintenance kit contains a non-return valve9 Reassemble in the reverse order

CautionRemember to reconnect the fan plugTighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the two fan nuts with a torque wrench to the firmness of 38 Nm

Fig38 Disconnecting the fan

AD-3001178-01

1

3

4

2

5

Fig39 Checking the non-return valve

AD-3001181-01

2x

68

7

9

7 Maintenance

42 Gas 120 ACE 7717202 - v03 - 24062019

8 Decommissioning

81 Decommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

To switch off the boiler temporarily or permanently proceed as follows

1 Switch the boiler off2 Cut the electrical power to the boiler3 Close the gas valve on the boiler4 Drain the central heating system or ensure frost protection5 Close the door of the boiler to prevent air circulating inside it6 Remove the pipe connecting the boiler to the chimney and close the

nozzle with a plug

82 Recommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

Should it prove necessary to carry out the recommissioning of the boiler proceed as follows

1 Re-establish electrical power to the boiler2 Fit and check the flue gas pipe3 Fill the siphon with water4 Fill the central heating system5 Open the boiler gas valve6 Start up the boiler

8 Decommissioning

7717202 - v03 - 24062019 Gas 120 ACE 43

9 Disposal and recyclingCautionOnly qualified professionals are permitted to remove and dispose of the boiler in accordance with local and national regulations

If you need to remove the boiler proceed as follows

1 Switch off the boiler2 Cut the power supply to the boiler3 Close the main gas valve4 Close the water mains5 Close the gas valve on the boiler6 Drain the installation7 Remove the airflue gas pipes8 Disconnect all pipes9 Dismantle the boiler

Fig40

MW-3000179-03

9 Disposal and recycling

44 Gas 120 ACE 7717202 - v03 - 24062019

10 Environmental

101 Energy savings

Energy-saving advice

Do not block ventilation outletsDo not cover the radiators Do not hang curtains in front of the radiatorsInstall reflective panels behind the radiators to prevent heat lossesInsulate the pipes in rooms that are not heated (cellars and lofts)Close the radiators in rooms not in useDo not run hot (or cold) water pointlesslyInstall an energy-saving shower head which can save up to 40 energyTake showers rather than baths A bath consumes twice as much water and energy

102 Room thermostat and settings

Various models of room thermostat are available The type of thermostat used and the parameter selected impact total energy consumption

A modulating regulator which may be combined with thermostatic valves is eco-friendly in terms of energy and offers an excellent level of comfort This combination allows you to set the temperature separately for each room However do not install thermostatic radiator valves in the room in which the room thermostat is locatedComplete opening and closing of the thermostatic radiator valves causes undesirable variations in temperature Therefore these must be openedclosed progressivelySet the room thermostat to a temperature of approximately 20degC to reduce heating costs and energy consumptionLower the thermostat setting to approximately 16degC at night or when you are not at home This reduces heating costs and energy consumptionLower the thermostat setting well before airing the roomsSet the water temperature to a lower level in summer than in winter (eg 60degC and 80degC respectively) when an ONOFF thermostatis usedWhen clock thermostats and programmable thermostats are to be set do not forget to take any holidays and days when no one is at home into account

10 Environmental

7717202 - v03 - 24062019 Gas 120 ACE 45

11 Warranty

111 General

We would like to thank you for buying one of our appliances and for your trust in our productIn order to ensure continued safe and efficient operation we recommend that the product is regularly inspected and maintainedYour installer and our service department can assist with this

112 Terms of warranty

The following provisions do not affect the application in favour of the buyer of the legal provisions with regard to hidden defects that are applicable in the buyers countryThis appliance comes with a warranty that covers all manufacturing faults the warranty period will commence on the date of purchase stated on the installers invoiceThe warranty period is stated in our price listAs a manufacturer we can by no means be held liable if the appliance is used incorrectly is poorly maintained or not maintained at all or is not installed correctly (it is your responsibility to ensure that installation is carried out by a qualified installer)In particular we cannot be held liable for material damage intangible losses or physical injury resulting from an installation that does not comply with

Legal or regulatory requirements or provisions laid down by the local authoritiesNational or local regulations and special provisions relating to the installationOur manuals and installation instructions in particular in terms of regular maintenance of the appliances

Our warranty is limited to the replacement or repair of the parts found to be defective by our technical services team excluding labour transfer and transport costsOur warranty does not cover replacement or repair costs for parts that may become defective due to normal wear incorrect usage the intervention of unqualified third parties inadequate or insufficient supervision or maintenance a mains supply that is not appropriate or the use of unsuitable or poor quality fuelSmaller parts such as motors pumps electrical valves etc are guaranteed only if these parts have never been dismantledThe rights established in European Directive 9944EEC implemented by legal decree No 24 of 2 February 2002 and published in Official Journal No 57 of 8 March 2002 remain in force

11 Warranty

46 Gas 120 ACE 7717202 - v03 - 24062019

12 Spare parts

121 General

If inspection or maintenance work bring to light the need to replace a component in the boilerProvide the reference number given in the spare parts list when ordering a spare part

CautionOnly genuine spare parts may be used

122 Spare parts lists

1221 Exchanger

Fig41

MW-6000743-01

811x

7

7

4

2

16

3

10

119

65

1

13

12

18

14

19

15

18

17

Tab27

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

1 7699615 Complete exchanger x 1 7699614 Complete exchanger x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 47

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

2 S101564 Exchanger front plate x x x3 S54731 Exchanger inspection hatch insulation x x x4 S57241 Exchanger inspection hatch gasket x x x5 S100052 M4x10 self-locking screw (x20) x x x6 S54754 FURQ65 burner x 6 S57477 FURQ85 burner x x7 7623837 Set of 10 k NTC sensors x x x8 S54755 M6 nut (x20) x x x9 7659755 M4x10 screw (x10) x x x10 S53489 Electrode gasket (x10) x x x11 7692359 Ignition electrode x x x12 7631936 Flue gas flow pipe diameter 100 mm x x x13 7624643 NTC 2x20 k flue gas sensor with gasket x x x14 7624619 Ignition transformer x x x15 S56987 ZP M6x16 screw (x10) x x x16 7616253 Valve with support x x x17 7680596 Exchanger bracket x 17 7673616 Exchanger bracket x x18 7701752 Gasket diameter 100 mm (x5) x x x19 7632708 Earth electric clip (x2) x x x

1222 Gas circuit

Fig42

MW-6000744-01

3

2

5

6

9

4

8

10

7

12

11

1

14

13

13

12 Spare parts

48 Gas 120 ACE 7717202 - v03 - 24062019

Tab28Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 S101543 Silencer x 1 S101520 Silencer x 1 S101578 Silencer x2 S54777 Venturi gasket (x5) x 2 S59215 Gas valve-venturi gasket (x5) x 2 S101593 Gaskets (kit) x3 S101726 Fan RG 1481200-3633 x x 3 S100036 Fan RG 148 1200-3633-010202 x4 S101596 Gas valve VK4115v1386 x 4 S101597 Gas valve VK4115vb1012 x 4 S101510 Gas valve GB-ND 057 XP x5 S54766 Venturi x 5 S57488 Venturi x 5 S101595 Venturi VMS 45900450-010 x6 S59215 Gas valve-venturi gasket (x5) x x 7 S57827 Gas valve unit flange x8 S57828 268x22x25 O-ring (x5) x9 S101631 Diaphragm x10 7616249 Flue gas sensor cap (5x) x x x11 S56155 238x177x2 gasket (x20) x x x12 95760050 C HC M4-12 88 ZN3 screw x x x13 S48512 M5-10 screw (x10) x x x14 S101590 Silencer retaining clip x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 49

1223 Hydraulic circuit

Fig43

MW-6000745-01

1

14

6

9

11

8

12

5

37

9

10

2

4

13

Tab29Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7680598 Complete flow pipe x 1 7670807 Complete flow pipe x x2 7672557 Complete return pipe x x x3 7674076 Complete gas pipe x 3 7680434 Complete gas pipe x 3 7670720 Complete gas pipe x4 7698560 HUBA G38 pressure gauge x x x5 94994712 PVC pipe diameter 16x12 x x x6 7699357 Water deflector diameter 100 mm x x x7 94902073 Drain valve 12 x x x8 94918138 Air vent x x x9 95013064 44x32x2 mm green gasket x x x10 95013060 24x17x2 mm green gasket x x 10 95013062 30x21x12 mm green gasket x11 7692329 Condensate hose x x x13 7706103 Assembled siphon height 160 mm x 13 7706038 Assembled siphon height 250 mm x x14 7103731 Condensate drain pan gasket x x x

12 Spare parts

50 Gas 120 ACE 7717202 - v03 - 24062019

1224 Boiler body

Fig44

MW-6000746-01

2

2

1

6

3

34

5

4

Tab30Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7686377 Assembled frame x 1 7686139 Assembled frame x x2 7679958 117x34 handle diameter 65 mm x x x3 7676037 Wheel x x x4 7688301 Frame lateral gasket x 4 7688008 Frame lateral gasket x x5 7688353 Front panel gasket x 5 7688007 Front panel gasket x x6 7693874 R4-05 front panel lock x x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 51

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

E toimistoestsystemsfi

Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 30: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

5 Close the gas supply valve before testing the pressure on the gas supply pipe to avoid damage caused by excessive pressure on the gas regulator Decompress before reopening the valve

561 Gas supply

Before mounting check that the gas meter has sufficient capacity (in m3h) To do this you should bear in mind the consumption of all appliances If the capacity of the gas meter is too low inform the gas supply companyThe boilers are preset to run on G20 gas (gas H) and can be adapted to run with the following gases

G31 (gas P)G3031 (gas BP)

ImportantTo use a different type of gas contact an approved assistance service

57 Air supplyflue gas outlet connections

571 Classification

The discharge and intake pipes must be certified for the appropriate configuration and must meet the requirements of the prevailing installation standards in the country

Tab20 Configurations and recommendations for the flue systemConfiguration Principle DescriptionB23B23P

AD-3001055-01

Connection to a chimney using a CE connection kit (single pipe in a flue comshybustion air taken from the boiler room)Follow the connection instructions and adhere to the recommended maximum pipe lengthsComply with the applicable regulations governing ventilation and cross-secshytions for room aeration vents

B33

MW-5000925-1

Room-ventilated version

Without down-draught diverterJoint flue gas discharge via the roof with guaranteed natural draft (at all times underpressure in the joint discharge duct)Flue gas discharge rinsed with air air from the installation area (special conshystruction)The IP rating of the boiler is lowered to IP20

C13C13X

AD-3001056-01

Airflue gas connection using concentric pipes to a horizontal terminal (so-called forced flue) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

5 Installation

30 Gas 120 ACE 7717202 - v03 - 24062019

Configuration Principle DescriptionC33C33X

AD-3001057-01

Airflue gas connection using concentric pipes to a vertical terminal (roof outshylet) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

C43C43X

MW-2000822-01

Airflue gas connection via concentric pipes to a common pipe supplying severshyal heating applicationsThe common pipe has a roof connection to a vertical terminal that draws in the air required for combustion and discharges the combustion productsUse of CE-certified system

C53

AD-3001058-02

Airflue gas connection via separate pipes lead to two separate terminals One draws in the air required for combustion and the other discharges the combusshytion productsThe outlets may be in different pressure zonesDo not install the air supply and discharge on opposing surfacesUse of CE-certified system

C63C63X

The installer is responsible for installing a CE-certified discharge system that complies with the manufacturers recommendations (temperature flow pressure etc)

The maximum pressure drop in the pipes ΔP must not exceed the values given in the table below The pipes must be certified for this type of use and for a temperature of more than 100 degC The terminal part of the flue gas pipe must be certified as complying with the EN 1856-1 StandardIf installing discharge and intake pipes not supplied by Remeha these must be certified for the intended type of use and their maximum pressure drop must be compliant

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 31

Configuration Principle DescriptionC83C83X

MW-2000823-01

Flue gas connection to a collective flue for sealed boilers The air supply is inshydividual via a terminal coming from outside the buildingA concentric pipe can be used to both supply the boiler with combustion air and connect to the collective flue gas discharge systemThe chimney or flue gas pipe must be suitable for such use and the system CE certified

C93C93X

AD-3001059-01

Airflue gas connection via concentric pipes in an existing chimney The air supshyply in the chimney may be installed via the existing channel or via tubing Flue gas discharge and air intake are via a vertical terminal at the top of the chimney

The air intake and discharge must be close enough to be in the same pressure zoneThe minimum cross-sections are shown in the table belowThe flue system must be suitable for the intended use and the system CE certishyfied

Tab21 Minimum dimensions of the duct or pipe C93 C93X

Version (D) Without air supply With air supplyRigid 80 mm Oslash 130 mm 130 x 130 mm Oslash 140 mm 130 x 130 mmRigid 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmRigid 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmFlexible 80 mm Oslash 130 mm 130 x 130 mm Oslash 145 mm 130 x 130 mmFlexible 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmFlexible 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmConcentric 80125 mm Oslash 145 mm 145 x 145 mm Oslash 145 mm 145 x 145 mmConcentric 100150 mm Oslash 170 mm 170 x 170 mm Oslash 170 mm 170 x 170 mmConcentric 150200 mm Oslash 270 mm 270 x 270 mm - -

ImportantThe duct must comply with the air density requirements of the local regulations

Important

Only original components are authorised for connection to the boiler and for the terminalThe clear section must comply with the standardThe chimney must be swept before installing the discharge flue

CautionEnsure that the flue gas discharge pipes are securely attached to the wall with suitable retaining flanges to prevent any damage and guarantee the tightness of every gasket in the circuit

CautionThe minimum gradient of the condensates discharge pipe from the boiler to the waste water discharge must be 1 cm per linear metre

Fig22 Minimum dimensions of the duct or pipe C93 C93X

AD-3000330-03

D

Oslash

D

5 Installation

32 Gas 120 ACE 7717202 - v03 - 24062019

572 Lengths of the airflue gas pipes

The maximum lengths (Lmax) given in the table are valid for pipes in which the horizontal sections do not exceed one metre in total For each additional metre of horizontal pipe a multiplication coefficient of 12 must be applied when calculating the total length L The total length L is calculated by adding the lengths of the straight airflue gas pipes and the equivalent lengths of the other componentsAlways ensure that L is less than Lmax

ImportantFor the list of flue gas system accessories and the equivalent lengths refer to the current price list

Tab22 Lengths of the airflue gas pipes in metresConfigurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 100 mm 26 24 19

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 110 mm 40 40 40

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 110 mm 295 24 175

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 80125 mm - - -

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 100150 mm 9 8 59

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 80125 mm - - -

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 100150 mm 115 10 94

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 80125 mm over 2x80 mm

- - -

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 100150 mm over 2x100 mm

23 175 Air 11Flue gases 5

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm110 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 110150 mm110 mm

16 132 10

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 33

Configurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 110150 mm110 mm

165 135 94

Tab23 PPS pipe reduction for each element used

Diameter 80 mmSingle

80125 mmConcentric

100 mmSingle

100150 mmConcentric

45deg elbow 12 m 10 m 11 m 10 m87deg elbow 19 m 15 m 20 m 37 mStraight inspection tube 03 m 06 m - 10 m87deg inspection elbow 19 m 20 m 48 m -Inspection T 42 m 27 m 56 m 25 mInspection tube for flexible pipe 03 m - 05 m -

573 Dimensions of flue gas outlet pipe

WarningThe pipes connected to the flue gas adapter must satisfy the following dimension requirements

d1 External dimensions of flue gas outlet pipe

Tab24 Dimensions of pipe d1 (min-max)80 mm 793 - 803 mm100 mm 993 - 1003 mm150 mm 149 - 151 mm

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipe

Tab25 Dimensions of pipe d1 (min-max) D1 (min-max)8080 mm 793 - 803 mm 793 - 803 mm100100 mm 993 - 1003 mm 993 - 1003 mm110110 mm 1093 - 1103 mm 1093 - 1103 mm150150 mm 149 - 151 mm 149 - 151 mm

Fig23 Dimensions of open connection

AD-3001094-01

oslashd1

Fig24 Dimensions of parallel connection

AD-3000963-01

oslashd1 oslashD1

5 Installation

34 Gas 120 ACE 7717202 - v03 - 24062019

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipeL1 Length difference between flue gas outlet pipe and air supply pipe

Tab26 Dimensions of pipe d1 (min-max) D1 (min-max) L1

(1) (min-max)80125 mm 793 - 803 mm 124 - 1255 mm 0 - 15 mm100150 mm 993 - 1003 mm 149 - 151 mm 0 - 15 mm

(1) Shorten the inner pipe if the length difference is too great

574 Connection to the flue gas pipe

At delivery the flue gas outletair supply is fixed inside the boiler

1 Using a long tool unlock and remove the boilers front door2 Remove the boiler outlet

3 Two options for connection to the flue gas pipe

Option Description3a Connection to a vertical flue gas pipe Position the flue gas

outletair supply directly at the boiler outlet3b Connection to a horizontal flue gas pipe Insert an outlet elshy

bow ( not supplied) before the flue gas outletair supply

ImportantLubricate the gaskets on the flue system during assembly

Fig25 Dimensions of concentric connection

AD-3000962-01

oslashd1

L1

oslashD1

Fig26

MW-2000867-02

1

2

1

Fig27

3a 3b

MW-2000868-01

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 35

Fastening the coaxial pipes Fasten the intake pipes with two galvanised Oslash 42 mm screws with a maximum length of 16 mm

CautionBefore fixing the screws make sure that at least 45 cm of pipe is inserted in the gasket of the other pipe

WarningGuarantee a minimum pipe slope towards the boiler of at least 5 cm per metre

Fig28 Fastening the coaxial pipes using screws

BO-0000030

16 mm

5 Installation

36 Gas 120 ACE 7717202 - v03 - 24062019

6 Operation

61 Settings

To configure the installation and use the boiler please refer to the control unit manual

6 Operation

7717202 - v03 - 24062019 Gas 120 ACE 37

7 Maintenance

71 General

We recommend having the boiler inspected and serviced at regular intervals

CautionDo not neglect to service the boiler Contact a qualified professional or take out a maintenance contract for the obligatory annual servicing of the boilerFailure to service the appliance voids the warranty

Danger of electric shockBefore service work is started the boiler has to be de-energised and secured from accidentally being switched back on

CautionHave an inspection carried out and the flues swept at least once a year or more depending on the regulations in force in your country

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

CautionAfter maintenance or repair work check the entire heating system to ensure that there are no leaks

CautionOnly genuine spare parts may be used

72 Specific maintenance operations

721 Cleaning the siphon

1 Remove the flue gas outlet discharge pipe

2 Remove the condensate discharge pipe 3 Remove the screw from the siphon

Fig29

1

MW-2000903-01

Fig30

2

3

MW-2000904-01

7 Maintenance

38 Gas 120 ACE 7717202 - v03 - 24062019

4 Pull the siphon downwards to disengage it and pivot it to release it

5 Flush the siphon 6 Drain the siphon

7 Fill the siphon with clean water up to the mark 8 Lubricate the siphon gasket9 Re-engage the siphon and refit the screw

10 Refit the two pipes

722 Checking the ionisation current

1 Check the ionisation current at full load and at low loadThe value is stable after 1 minute

2 Clean or replace the ionisationignition electrode if the value is lower than 4 microA

Fig31

4

90deg

MW-2000905-01

Fig32

MW-2000843-01

Fig33

MW-2000844-01

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 39

723 Replace the ionizationignition electrode

The ionizationignition electrode must be replaced if

The ionization current is lt 4 microAThe electrode is damaged or worn

1 Remove the plug of the electrode from the igniter

ImportantThe ignition cable is fixed to the electrode and therefore may not be removed

2 Remove the two screws3 Remove the entire component4 Fit the new ionizationignition electrode with a new seal5 Reassemble the unit in the reverse order to disassembly

724 Servicing the forced flue connection pipes

1 Open the inspection hatches or remove the pipes2 Check that the air supply and discharge pipes are not blocked

If necessary clean the discharge pipe3 Check the tightness of the flue gas system4 Replace the tightness gaskets and if necessary any sections of pipe

until tightness is perfect

725 Checking the burner and cleaning the heat exchanger

1 Remove the air inlet flue on the venturi2 Loosen the gland on the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

Fig34

AD-0000088-01

4

1

2

3

Fig35 Removing the fan

AD-3001178-01

1

3

4

2

5

7 Maintenance

40 Gas 120 ACE 7717202 - v03 - 24062019

6 Remove the front plate from the heat exchanger7 Carefully lift the front plate including the burner and fan away from

the heat exchanger

8 Use a vacuum cleaner fitted with a special endpiece (accessory) to clean the top part of the heat exchanger (combustion chamber)

9 Vacuum again without the top brush on the end piece10 Clean the lower section of the heat exchanger with the special

cleaning blade (accessory)11 Check (eg using a mirror) whether any visible contamination has

been left behind If it has remove it with the vacuum cleaner12 Check that the burner cover of the dismantled burner is free from

cracks andor damage If not replace the burnerServicing the burner is usually not necessary it is self-cleaning Use compressed air to carefully blow away any dust

13 Reassemble the unit in reverse order

CautionRemember to reconnect the fan plugCheck that the gasket is correctly positioned between the mixing elbow and the heat exchanger (the gasket must lie absolutely flat in the appropriate groove to ensure that no gas can leak)Tighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the front plate nuts with a torque wrench to the firmness of 10 Nm

14 Open the gas supply and switch the power supply to the boiler back on

Fig36 Removing the front plate fan and burner

AD-3001179-01

6

7

Fig37 Cleaning the heat exchanger

AD-3001180-01

10

8 9

12

11

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 41

726 Checking the non-return valve

1 Remove the air inlet pipe from the venturi2 Unscrew the gland of the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

6 Dismantle the fan7 Remove the fan together with the gas valve unit8 Inspect the non-return valve and replace it in the event of a defect or

damage or if the maintenance kit contains a non-return valve9 Reassemble in the reverse order

CautionRemember to reconnect the fan plugTighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the two fan nuts with a torque wrench to the firmness of 38 Nm

Fig38 Disconnecting the fan

AD-3001178-01

1

3

4

2

5

Fig39 Checking the non-return valve

AD-3001181-01

2x

68

7

9

7 Maintenance

42 Gas 120 ACE 7717202 - v03 - 24062019

8 Decommissioning

81 Decommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

To switch off the boiler temporarily or permanently proceed as follows

1 Switch the boiler off2 Cut the electrical power to the boiler3 Close the gas valve on the boiler4 Drain the central heating system or ensure frost protection5 Close the door of the boiler to prevent air circulating inside it6 Remove the pipe connecting the boiler to the chimney and close the

nozzle with a plug

82 Recommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

Should it prove necessary to carry out the recommissioning of the boiler proceed as follows

1 Re-establish electrical power to the boiler2 Fit and check the flue gas pipe3 Fill the siphon with water4 Fill the central heating system5 Open the boiler gas valve6 Start up the boiler

8 Decommissioning

7717202 - v03 - 24062019 Gas 120 ACE 43

9 Disposal and recyclingCautionOnly qualified professionals are permitted to remove and dispose of the boiler in accordance with local and national regulations

If you need to remove the boiler proceed as follows

1 Switch off the boiler2 Cut the power supply to the boiler3 Close the main gas valve4 Close the water mains5 Close the gas valve on the boiler6 Drain the installation7 Remove the airflue gas pipes8 Disconnect all pipes9 Dismantle the boiler

Fig40

MW-3000179-03

9 Disposal and recycling

44 Gas 120 ACE 7717202 - v03 - 24062019

10 Environmental

101 Energy savings

Energy-saving advice

Do not block ventilation outletsDo not cover the radiators Do not hang curtains in front of the radiatorsInstall reflective panels behind the radiators to prevent heat lossesInsulate the pipes in rooms that are not heated (cellars and lofts)Close the radiators in rooms not in useDo not run hot (or cold) water pointlesslyInstall an energy-saving shower head which can save up to 40 energyTake showers rather than baths A bath consumes twice as much water and energy

102 Room thermostat and settings

Various models of room thermostat are available The type of thermostat used and the parameter selected impact total energy consumption

A modulating regulator which may be combined with thermostatic valves is eco-friendly in terms of energy and offers an excellent level of comfort This combination allows you to set the temperature separately for each room However do not install thermostatic radiator valves in the room in which the room thermostat is locatedComplete opening and closing of the thermostatic radiator valves causes undesirable variations in temperature Therefore these must be openedclosed progressivelySet the room thermostat to a temperature of approximately 20degC to reduce heating costs and energy consumptionLower the thermostat setting to approximately 16degC at night or when you are not at home This reduces heating costs and energy consumptionLower the thermostat setting well before airing the roomsSet the water temperature to a lower level in summer than in winter (eg 60degC and 80degC respectively) when an ONOFF thermostatis usedWhen clock thermostats and programmable thermostats are to be set do not forget to take any holidays and days when no one is at home into account

10 Environmental

7717202 - v03 - 24062019 Gas 120 ACE 45

11 Warranty

111 General

We would like to thank you for buying one of our appliances and for your trust in our productIn order to ensure continued safe and efficient operation we recommend that the product is regularly inspected and maintainedYour installer and our service department can assist with this

112 Terms of warranty

The following provisions do not affect the application in favour of the buyer of the legal provisions with regard to hidden defects that are applicable in the buyers countryThis appliance comes with a warranty that covers all manufacturing faults the warranty period will commence on the date of purchase stated on the installers invoiceThe warranty period is stated in our price listAs a manufacturer we can by no means be held liable if the appliance is used incorrectly is poorly maintained or not maintained at all or is not installed correctly (it is your responsibility to ensure that installation is carried out by a qualified installer)In particular we cannot be held liable for material damage intangible losses or physical injury resulting from an installation that does not comply with

Legal or regulatory requirements or provisions laid down by the local authoritiesNational or local regulations and special provisions relating to the installationOur manuals and installation instructions in particular in terms of regular maintenance of the appliances

Our warranty is limited to the replacement or repair of the parts found to be defective by our technical services team excluding labour transfer and transport costsOur warranty does not cover replacement or repair costs for parts that may become defective due to normal wear incorrect usage the intervention of unqualified third parties inadequate or insufficient supervision or maintenance a mains supply that is not appropriate or the use of unsuitable or poor quality fuelSmaller parts such as motors pumps electrical valves etc are guaranteed only if these parts have never been dismantledThe rights established in European Directive 9944EEC implemented by legal decree No 24 of 2 February 2002 and published in Official Journal No 57 of 8 March 2002 remain in force

11 Warranty

46 Gas 120 ACE 7717202 - v03 - 24062019

12 Spare parts

121 General

If inspection or maintenance work bring to light the need to replace a component in the boilerProvide the reference number given in the spare parts list when ordering a spare part

CautionOnly genuine spare parts may be used

122 Spare parts lists

1221 Exchanger

Fig41

MW-6000743-01

811x

7

7

4

2

16

3

10

119

65

1

13

12

18

14

19

15

18

17

Tab27

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

1 7699615 Complete exchanger x 1 7699614 Complete exchanger x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 47

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

2 S101564 Exchanger front plate x x x3 S54731 Exchanger inspection hatch insulation x x x4 S57241 Exchanger inspection hatch gasket x x x5 S100052 M4x10 self-locking screw (x20) x x x6 S54754 FURQ65 burner x 6 S57477 FURQ85 burner x x7 7623837 Set of 10 k NTC sensors x x x8 S54755 M6 nut (x20) x x x9 7659755 M4x10 screw (x10) x x x10 S53489 Electrode gasket (x10) x x x11 7692359 Ignition electrode x x x12 7631936 Flue gas flow pipe diameter 100 mm x x x13 7624643 NTC 2x20 k flue gas sensor with gasket x x x14 7624619 Ignition transformer x x x15 S56987 ZP M6x16 screw (x10) x x x16 7616253 Valve with support x x x17 7680596 Exchanger bracket x 17 7673616 Exchanger bracket x x18 7701752 Gasket diameter 100 mm (x5) x x x19 7632708 Earth electric clip (x2) x x x

1222 Gas circuit

Fig42

MW-6000744-01

3

2

5

6

9

4

8

10

7

12

11

1

14

13

13

12 Spare parts

48 Gas 120 ACE 7717202 - v03 - 24062019

Tab28Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 S101543 Silencer x 1 S101520 Silencer x 1 S101578 Silencer x2 S54777 Venturi gasket (x5) x 2 S59215 Gas valve-venturi gasket (x5) x 2 S101593 Gaskets (kit) x3 S101726 Fan RG 1481200-3633 x x 3 S100036 Fan RG 148 1200-3633-010202 x4 S101596 Gas valve VK4115v1386 x 4 S101597 Gas valve VK4115vb1012 x 4 S101510 Gas valve GB-ND 057 XP x5 S54766 Venturi x 5 S57488 Venturi x 5 S101595 Venturi VMS 45900450-010 x6 S59215 Gas valve-venturi gasket (x5) x x 7 S57827 Gas valve unit flange x8 S57828 268x22x25 O-ring (x5) x9 S101631 Diaphragm x10 7616249 Flue gas sensor cap (5x) x x x11 S56155 238x177x2 gasket (x20) x x x12 95760050 C HC M4-12 88 ZN3 screw x x x13 S48512 M5-10 screw (x10) x x x14 S101590 Silencer retaining clip x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 49

1223 Hydraulic circuit

Fig43

MW-6000745-01

1

14

6

9

11

8

12

5

37

9

10

2

4

13

Tab29Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7680598 Complete flow pipe x 1 7670807 Complete flow pipe x x2 7672557 Complete return pipe x x x3 7674076 Complete gas pipe x 3 7680434 Complete gas pipe x 3 7670720 Complete gas pipe x4 7698560 HUBA G38 pressure gauge x x x5 94994712 PVC pipe diameter 16x12 x x x6 7699357 Water deflector diameter 100 mm x x x7 94902073 Drain valve 12 x x x8 94918138 Air vent x x x9 95013064 44x32x2 mm green gasket x x x10 95013060 24x17x2 mm green gasket x x 10 95013062 30x21x12 mm green gasket x11 7692329 Condensate hose x x x13 7706103 Assembled siphon height 160 mm x 13 7706038 Assembled siphon height 250 mm x x14 7103731 Condensate drain pan gasket x x x

12 Spare parts

50 Gas 120 ACE 7717202 - v03 - 24062019

1224 Boiler body

Fig44

MW-6000746-01

2

2

1

6

3

34

5

4

Tab30Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7686377 Assembled frame x 1 7686139 Assembled frame x x2 7679958 117x34 handle diameter 65 mm x x x3 7676037 Wheel x x x4 7688301 Frame lateral gasket x 4 7688008 Frame lateral gasket x x5 7688353 Front panel gasket x 5 7688007 Front panel gasket x x6 7693874 R4-05 front panel lock x x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 51

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

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EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

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Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 31: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

Configuration Principle DescriptionC33C33X

AD-3001057-01

Airflue gas connection using concentric pipes to a vertical terminal (roof outshylet) Use of CE-certified systemThis allows the air required for combustion to be drawn in and the combustion products to be discharged at the same timeThe terminal parts of the double discharge pipe must fit inside a 2500 cm2 square for boilers under 70 kW and a 10000 cm2 square for boilers over 70 kW

C43C43X

MW-2000822-01

Airflue gas connection via concentric pipes to a common pipe supplying severshyal heating applicationsThe common pipe has a roof connection to a vertical terminal that draws in the air required for combustion and discharges the combustion productsUse of CE-certified system

C53

AD-3001058-02

Airflue gas connection via separate pipes lead to two separate terminals One draws in the air required for combustion and the other discharges the combusshytion productsThe outlets may be in different pressure zonesDo not install the air supply and discharge on opposing surfacesUse of CE-certified system

C63C63X

The installer is responsible for installing a CE-certified discharge system that complies with the manufacturers recommendations (temperature flow pressure etc)

The maximum pressure drop in the pipes ΔP must not exceed the values given in the table below The pipes must be certified for this type of use and for a temperature of more than 100 degC The terminal part of the flue gas pipe must be certified as complying with the EN 1856-1 StandardIf installing discharge and intake pipes not supplied by Remeha these must be certified for the intended type of use and their maximum pressure drop must be compliant

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 31

Configuration Principle DescriptionC83C83X

MW-2000823-01

Flue gas connection to a collective flue for sealed boilers The air supply is inshydividual via a terminal coming from outside the buildingA concentric pipe can be used to both supply the boiler with combustion air and connect to the collective flue gas discharge systemThe chimney or flue gas pipe must be suitable for such use and the system CE certified

C93C93X

AD-3001059-01

Airflue gas connection via concentric pipes in an existing chimney The air supshyply in the chimney may be installed via the existing channel or via tubing Flue gas discharge and air intake are via a vertical terminal at the top of the chimney

The air intake and discharge must be close enough to be in the same pressure zoneThe minimum cross-sections are shown in the table belowThe flue system must be suitable for the intended use and the system CE certishyfied

Tab21 Minimum dimensions of the duct or pipe C93 C93X

Version (D) Without air supply With air supplyRigid 80 mm Oslash 130 mm 130 x 130 mm Oslash 140 mm 130 x 130 mmRigid 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmRigid 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmFlexible 80 mm Oslash 130 mm 130 x 130 mm Oslash 145 mm 130 x 130 mmFlexible 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmFlexible 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmConcentric 80125 mm Oslash 145 mm 145 x 145 mm Oslash 145 mm 145 x 145 mmConcentric 100150 mm Oslash 170 mm 170 x 170 mm Oslash 170 mm 170 x 170 mmConcentric 150200 mm Oslash 270 mm 270 x 270 mm - -

ImportantThe duct must comply with the air density requirements of the local regulations

Important

Only original components are authorised for connection to the boiler and for the terminalThe clear section must comply with the standardThe chimney must be swept before installing the discharge flue

CautionEnsure that the flue gas discharge pipes are securely attached to the wall with suitable retaining flanges to prevent any damage and guarantee the tightness of every gasket in the circuit

CautionThe minimum gradient of the condensates discharge pipe from the boiler to the waste water discharge must be 1 cm per linear metre

Fig22 Minimum dimensions of the duct or pipe C93 C93X

AD-3000330-03

D

Oslash

D

5 Installation

32 Gas 120 ACE 7717202 - v03 - 24062019

572 Lengths of the airflue gas pipes

The maximum lengths (Lmax) given in the table are valid for pipes in which the horizontal sections do not exceed one metre in total For each additional metre of horizontal pipe a multiplication coefficient of 12 must be applied when calculating the total length L The total length L is calculated by adding the lengths of the straight airflue gas pipes and the equivalent lengths of the other componentsAlways ensure that L is less than Lmax

ImportantFor the list of flue gas system accessories and the equivalent lengths refer to the current price list

Tab22 Lengths of the airflue gas pipes in metresConfigurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 100 mm 26 24 19

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 110 mm 40 40 40

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 110 mm 295 24 175

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 80125 mm - - -

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 100150 mm 9 8 59

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 80125 mm - - -

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 100150 mm 115 10 94

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 80125 mm over 2x80 mm

- - -

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 100150 mm over 2x100 mm

23 175 Air 11Flue gases 5

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm110 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 110150 mm110 mm

16 132 10

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 33

Configurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 110150 mm110 mm

165 135 94

Tab23 PPS pipe reduction for each element used

Diameter 80 mmSingle

80125 mmConcentric

100 mmSingle

100150 mmConcentric

45deg elbow 12 m 10 m 11 m 10 m87deg elbow 19 m 15 m 20 m 37 mStraight inspection tube 03 m 06 m - 10 m87deg inspection elbow 19 m 20 m 48 m -Inspection T 42 m 27 m 56 m 25 mInspection tube for flexible pipe 03 m - 05 m -

573 Dimensions of flue gas outlet pipe

WarningThe pipes connected to the flue gas adapter must satisfy the following dimension requirements

d1 External dimensions of flue gas outlet pipe

Tab24 Dimensions of pipe d1 (min-max)80 mm 793 - 803 mm100 mm 993 - 1003 mm150 mm 149 - 151 mm

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipe

Tab25 Dimensions of pipe d1 (min-max) D1 (min-max)8080 mm 793 - 803 mm 793 - 803 mm100100 mm 993 - 1003 mm 993 - 1003 mm110110 mm 1093 - 1103 mm 1093 - 1103 mm150150 mm 149 - 151 mm 149 - 151 mm

Fig23 Dimensions of open connection

AD-3001094-01

oslashd1

Fig24 Dimensions of parallel connection

AD-3000963-01

oslashd1 oslashD1

5 Installation

34 Gas 120 ACE 7717202 - v03 - 24062019

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipeL1 Length difference between flue gas outlet pipe and air supply pipe

Tab26 Dimensions of pipe d1 (min-max) D1 (min-max) L1

(1) (min-max)80125 mm 793 - 803 mm 124 - 1255 mm 0 - 15 mm100150 mm 993 - 1003 mm 149 - 151 mm 0 - 15 mm

(1) Shorten the inner pipe if the length difference is too great

574 Connection to the flue gas pipe

At delivery the flue gas outletair supply is fixed inside the boiler

1 Using a long tool unlock and remove the boilers front door2 Remove the boiler outlet

3 Two options for connection to the flue gas pipe

Option Description3a Connection to a vertical flue gas pipe Position the flue gas

outletair supply directly at the boiler outlet3b Connection to a horizontal flue gas pipe Insert an outlet elshy

bow ( not supplied) before the flue gas outletair supply

ImportantLubricate the gaskets on the flue system during assembly

Fig25 Dimensions of concentric connection

AD-3000962-01

oslashd1

L1

oslashD1

Fig26

MW-2000867-02

1

2

1

Fig27

3a 3b

MW-2000868-01

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 35

Fastening the coaxial pipes Fasten the intake pipes with two galvanised Oslash 42 mm screws with a maximum length of 16 mm

CautionBefore fixing the screws make sure that at least 45 cm of pipe is inserted in the gasket of the other pipe

WarningGuarantee a minimum pipe slope towards the boiler of at least 5 cm per metre

Fig28 Fastening the coaxial pipes using screws

BO-0000030

16 mm

5 Installation

36 Gas 120 ACE 7717202 - v03 - 24062019

6 Operation

61 Settings

To configure the installation and use the boiler please refer to the control unit manual

6 Operation

7717202 - v03 - 24062019 Gas 120 ACE 37

7 Maintenance

71 General

We recommend having the boiler inspected and serviced at regular intervals

CautionDo not neglect to service the boiler Contact a qualified professional or take out a maintenance contract for the obligatory annual servicing of the boilerFailure to service the appliance voids the warranty

Danger of electric shockBefore service work is started the boiler has to be de-energised and secured from accidentally being switched back on

CautionHave an inspection carried out and the flues swept at least once a year or more depending on the regulations in force in your country

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

CautionAfter maintenance or repair work check the entire heating system to ensure that there are no leaks

CautionOnly genuine spare parts may be used

72 Specific maintenance operations

721 Cleaning the siphon

1 Remove the flue gas outlet discharge pipe

2 Remove the condensate discharge pipe 3 Remove the screw from the siphon

Fig29

1

MW-2000903-01

Fig30

2

3

MW-2000904-01

7 Maintenance

38 Gas 120 ACE 7717202 - v03 - 24062019

4 Pull the siphon downwards to disengage it and pivot it to release it

5 Flush the siphon 6 Drain the siphon

7 Fill the siphon with clean water up to the mark 8 Lubricate the siphon gasket9 Re-engage the siphon and refit the screw

10 Refit the two pipes

722 Checking the ionisation current

1 Check the ionisation current at full load and at low loadThe value is stable after 1 minute

2 Clean or replace the ionisationignition electrode if the value is lower than 4 microA

Fig31

4

90deg

MW-2000905-01

Fig32

MW-2000843-01

Fig33

MW-2000844-01

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 39

723 Replace the ionizationignition electrode

The ionizationignition electrode must be replaced if

The ionization current is lt 4 microAThe electrode is damaged or worn

1 Remove the plug of the electrode from the igniter

ImportantThe ignition cable is fixed to the electrode and therefore may not be removed

2 Remove the two screws3 Remove the entire component4 Fit the new ionizationignition electrode with a new seal5 Reassemble the unit in the reverse order to disassembly

724 Servicing the forced flue connection pipes

1 Open the inspection hatches or remove the pipes2 Check that the air supply and discharge pipes are not blocked

If necessary clean the discharge pipe3 Check the tightness of the flue gas system4 Replace the tightness gaskets and if necessary any sections of pipe

until tightness is perfect

725 Checking the burner and cleaning the heat exchanger

1 Remove the air inlet flue on the venturi2 Loosen the gland on the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

Fig34

AD-0000088-01

4

1

2

3

Fig35 Removing the fan

AD-3001178-01

1

3

4

2

5

7 Maintenance

40 Gas 120 ACE 7717202 - v03 - 24062019

6 Remove the front plate from the heat exchanger7 Carefully lift the front plate including the burner and fan away from

the heat exchanger

8 Use a vacuum cleaner fitted with a special endpiece (accessory) to clean the top part of the heat exchanger (combustion chamber)

9 Vacuum again without the top brush on the end piece10 Clean the lower section of the heat exchanger with the special

cleaning blade (accessory)11 Check (eg using a mirror) whether any visible contamination has

been left behind If it has remove it with the vacuum cleaner12 Check that the burner cover of the dismantled burner is free from

cracks andor damage If not replace the burnerServicing the burner is usually not necessary it is self-cleaning Use compressed air to carefully blow away any dust

13 Reassemble the unit in reverse order

CautionRemember to reconnect the fan plugCheck that the gasket is correctly positioned between the mixing elbow and the heat exchanger (the gasket must lie absolutely flat in the appropriate groove to ensure that no gas can leak)Tighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the front plate nuts with a torque wrench to the firmness of 10 Nm

14 Open the gas supply and switch the power supply to the boiler back on

Fig36 Removing the front plate fan and burner

AD-3001179-01

6

7

Fig37 Cleaning the heat exchanger

AD-3001180-01

10

8 9

12

11

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 41

726 Checking the non-return valve

1 Remove the air inlet pipe from the venturi2 Unscrew the gland of the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

6 Dismantle the fan7 Remove the fan together with the gas valve unit8 Inspect the non-return valve and replace it in the event of a defect or

damage or if the maintenance kit contains a non-return valve9 Reassemble in the reverse order

CautionRemember to reconnect the fan plugTighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the two fan nuts with a torque wrench to the firmness of 38 Nm

Fig38 Disconnecting the fan

AD-3001178-01

1

3

4

2

5

Fig39 Checking the non-return valve

AD-3001181-01

2x

68

7

9

7 Maintenance

42 Gas 120 ACE 7717202 - v03 - 24062019

8 Decommissioning

81 Decommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

To switch off the boiler temporarily or permanently proceed as follows

1 Switch the boiler off2 Cut the electrical power to the boiler3 Close the gas valve on the boiler4 Drain the central heating system or ensure frost protection5 Close the door of the boiler to prevent air circulating inside it6 Remove the pipe connecting the boiler to the chimney and close the

nozzle with a plug

82 Recommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

Should it prove necessary to carry out the recommissioning of the boiler proceed as follows

1 Re-establish electrical power to the boiler2 Fit and check the flue gas pipe3 Fill the siphon with water4 Fill the central heating system5 Open the boiler gas valve6 Start up the boiler

8 Decommissioning

7717202 - v03 - 24062019 Gas 120 ACE 43

9 Disposal and recyclingCautionOnly qualified professionals are permitted to remove and dispose of the boiler in accordance with local and national regulations

If you need to remove the boiler proceed as follows

1 Switch off the boiler2 Cut the power supply to the boiler3 Close the main gas valve4 Close the water mains5 Close the gas valve on the boiler6 Drain the installation7 Remove the airflue gas pipes8 Disconnect all pipes9 Dismantle the boiler

Fig40

MW-3000179-03

9 Disposal and recycling

44 Gas 120 ACE 7717202 - v03 - 24062019

10 Environmental

101 Energy savings

Energy-saving advice

Do not block ventilation outletsDo not cover the radiators Do not hang curtains in front of the radiatorsInstall reflective panels behind the radiators to prevent heat lossesInsulate the pipes in rooms that are not heated (cellars and lofts)Close the radiators in rooms not in useDo not run hot (or cold) water pointlesslyInstall an energy-saving shower head which can save up to 40 energyTake showers rather than baths A bath consumes twice as much water and energy

102 Room thermostat and settings

Various models of room thermostat are available The type of thermostat used and the parameter selected impact total energy consumption

A modulating regulator which may be combined with thermostatic valves is eco-friendly in terms of energy and offers an excellent level of comfort This combination allows you to set the temperature separately for each room However do not install thermostatic radiator valves in the room in which the room thermostat is locatedComplete opening and closing of the thermostatic radiator valves causes undesirable variations in temperature Therefore these must be openedclosed progressivelySet the room thermostat to a temperature of approximately 20degC to reduce heating costs and energy consumptionLower the thermostat setting to approximately 16degC at night or when you are not at home This reduces heating costs and energy consumptionLower the thermostat setting well before airing the roomsSet the water temperature to a lower level in summer than in winter (eg 60degC and 80degC respectively) when an ONOFF thermostatis usedWhen clock thermostats and programmable thermostats are to be set do not forget to take any holidays and days when no one is at home into account

10 Environmental

7717202 - v03 - 24062019 Gas 120 ACE 45

11 Warranty

111 General

We would like to thank you for buying one of our appliances and for your trust in our productIn order to ensure continued safe and efficient operation we recommend that the product is regularly inspected and maintainedYour installer and our service department can assist with this

112 Terms of warranty

The following provisions do not affect the application in favour of the buyer of the legal provisions with regard to hidden defects that are applicable in the buyers countryThis appliance comes with a warranty that covers all manufacturing faults the warranty period will commence on the date of purchase stated on the installers invoiceThe warranty period is stated in our price listAs a manufacturer we can by no means be held liable if the appliance is used incorrectly is poorly maintained or not maintained at all or is not installed correctly (it is your responsibility to ensure that installation is carried out by a qualified installer)In particular we cannot be held liable for material damage intangible losses or physical injury resulting from an installation that does not comply with

Legal or regulatory requirements or provisions laid down by the local authoritiesNational or local regulations and special provisions relating to the installationOur manuals and installation instructions in particular in terms of regular maintenance of the appliances

Our warranty is limited to the replacement or repair of the parts found to be defective by our technical services team excluding labour transfer and transport costsOur warranty does not cover replacement or repair costs for parts that may become defective due to normal wear incorrect usage the intervention of unqualified third parties inadequate or insufficient supervision or maintenance a mains supply that is not appropriate or the use of unsuitable or poor quality fuelSmaller parts such as motors pumps electrical valves etc are guaranteed only if these parts have never been dismantledThe rights established in European Directive 9944EEC implemented by legal decree No 24 of 2 February 2002 and published in Official Journal No 57 of 8 March 2002 remain in force

11 Warranty

46 Gas 120 ACE 7717202 - v03 - 24062019

12 Spare parts

121 General

If inspection or maintenance work bring to light the need to replace a component in the boilerProvide the reference number given in the spare parts list when ordering a spare part

CautionOnly genuine spare parts may be used

122 Spare parts lists

1221 Exchanger

Fig41

MW-6000743-01

811x

7

7

4

2

16

3

10

119

65

1

13

12

18

14

19

15

18

17

Tab27

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

1 7699615 Complete exchanger x 1 7699614 Complete exchanger x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 47

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

2 S101564 Exchanger front plate x x x3 S54731 Exchanger inspection hatch insulation x x x4 S57241 Exchanger inspection hatch gasket x x x5 S100052 M4x10 self-locking screw (x20) x x x6 S54754 FURQ65 burner x 6 S57477 FURQ85 burner x x7 7623837 Set of 10 k NTC sensors x x x8 S54755 M6 nut (x20) x x x9 7659755 M4x10 screw (x10) x x x10 S53489 Electrode gasket (x10) x x x11 7692359 Ignition electrode x x x12 7631936 Flue gas flow pipe diameter 100 mm x x x13 7624643 NTC 2x20 k flue gas sensor with gasket x x x14 7624619 Ignition transformer x x x15 S56987 ZP M6x16 screw (x10) x x x16 7616253 Valve with support x x x17 7680596 Exchanger bracket x 17 7673616 Exchanger bracket x x18 7701752 Gasket diameter 100 mm (x5) x x x19 7632708 Earth electric clip (x2) x x x

1222 Gas circuit

Fig42

MW-6000744-01

3

2

5

6

9

4

8

10

7

12

11

1

14

13

13

12 Spare parts

48 Gas 120 ACE 7717202 - v03 - 24062019

Tab28Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 S101543 Silencer x 1 S101520 Silencer x 1 S101578 Silencer x2 S54777 Venturi gasket (x5) x 2 S59215 Gas valve-venturi gasket (x5) x 2 S101593 Gaskets (kit) x3 S101726 Fan RG 1481200-3633 x x 3 S100036 Fan RG 148 1200-3633-010202 x4 S101596 Gas valve VK4115v1386 x 4 S101597 Gas valve VK4115vb1012 x 4 S101510 Gas valve GB-ND 057 XP x5 S54766 Venturi x 5 S57488 Venturi x 5 S101595 Venturi VMS 45900450-010 x6 S59215 Gas valve-venturi gasket (x5) x x 7 S57827 Gas valve unit flange x8 S57828 268x22x25 O-ring (x5) x9 S101631 Diaphragm x10 7616249 Flue gas sensor cap (5x) x x x11 S56155 238x177x2 gasket (x20) x x x12 95760050 C HC M4-12 88 ZN3 screw x x x13 S48512 M5-10 screw (x10) x x x14 S101590 Silencer retaining clip x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 49

1223 Hydraulic circuit

Fig43

MW-6000745-01

1

14

6

9

11

8

12

5

37

9

10

2

4

13

Tab29Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7680598 Complete flow pipe x 1 7670807 Complete flow pipe x x2 7672557 Complete return pipe x x x3 7674076 Complete gas pipe x 3 7680434 Complete gas pipe x 3 7670720 Complete gas pipe x4 7698560 HUBA G38 pressure gauge x x x5 94994712 PVC pipe diameter 16x12 x x x6 7699357 Water deflector diameter 100 mm x x x7 94902073 Drain valve 12 x x x8 94918138 Air vent x x x9 95013064 44x32x2 mm green gasket x x x10 95013060 24x17x2 mm green gasket x x 10 95013062 30x21x12 mm green gasket x11 7692329 Condensate hose x x x13 7706103 Assembled siphon height 160 mm x 13 7706038 Assembled siphon height 250 mm x x14 7103731 Condensate drain pan gasket x x x

12 Spare parts

50 Gas 120 ACE 7717202 - v03 - 24062019

1224 Boiler body

Fig44

MW-6000746-01

2

2

1

6

3

34

5

4

Tab30Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7686377 Assembled frame x 1 7686139 Assembled frame x x2 7679958 117x34 handle diameter 65 mm x x x3 7676037 Wheel x x x4 7688301 Frame lateral gasket x 4 7688008 Frame lateral gasket x x5 7688353 Front panel gasket x 5 7688007 Front panel gasket x x6 7693874 R4-05 front panel lock x x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 51

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

E toimistoestsystemsfi

Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 32: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

Configuration Principle DescriptionC83C83X

MW-2000823-01

Flue gas connection to a collective flue for sealed boilers The air supply is inshydividual via a terminal coming from outside the buildingA concentric pipe can be used to both supply the boiler with combustion air and connect to the collective flue gas discharge systemThe chimney or flue gas pipe must be suitable for such use and the system CE certified

C93C93X

AD-3001059-01

Airflue gas connection via concentric pipes in an existing chimney The air supshyply in the chimney may be installed via the existing channel or via tubing Flue gas discharge and air intake are via a vertical terminal at the top of the chimney

The air intake and discharge must be close enough to be in the same pressure zoneThe minimum cross-sections are shown in the table belowThe flue system must be suitable for the intended use and the system CE certishyfied

Tab21 Minimum dimensions of the duct or pipe C93 C93X

Version (D) Without air supply With air supplyRigid 80 mm Oslash 130 mm 130 x 130 mm Oslash 140 mm 130 x 130 mmRigid 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmRigid 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmFlexible 80 mm Oslash 130 mm 130 x 130 mm Oslash 145 mm 130 x 130 mmFlexible 100 mm Oslash 160 mm 160 x 160 mm Oslash 170 mm 160 x 160 mmFlexible 150 mm Oslash 200 mm 200 x 200 mm Oslash 220 mm 220 x 220 mmConcentric 80125 mm Oslash 145 mm 145 x 145 mm Oslash 145 mm 145 x 145 mmConcentric 100150 mm Oslash 170 mm 170 x 170 mm Oslash 170 mm 170 x 170 mmConcentric 150200 mm Oslash 270 mm 270 x 270 mm - -

ImportantThe duct must comply with the air density requirements of the local regulations

Important

Only original components are authorised for connection to the boiler and for the terminalThe clear section must comply with the standardThe chimney must be swept before installing the discharge flue

CautionEnsure that the flue gas discharge pipes are securely attached to the wall with suitable retaining flanges to prevent any damage and guarantee the tightness of every gasket in the circuit

CautionThe minimum gradient of the condensates discharge pipe from the boiler to the waste water discharge must be 1 cm per linear metre

Fig22 Minimum dimensions of the duct or pipe C93 C93X

AD-3000330-03

D

Oslash

D

5 Installation

32 Gas 120 ACE 7717202 - v03 - 24062019

572 Lengths of the airflue gas pipes

The maximum lengths (Lmax) given in the table are valid for pipes in which the horizontal sections do not exceed one metre in total For each additional metre of horizontal pipe a multiplication coefficient of 12 must be applied when calculating the total length L The total length L is calculated by adding the lengths of the straight airflue gas pipes and the equivalent lengths of the other componentsAlways ensure that L is less than Lmax

ImportantFor the list of flue gas system accessories and the equivalent lengths refer to the current price list

Tab22 Lengths of the airflue gas pipes in metresConfigurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 100 mm 26 24 19

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 110 mm 40 40 40

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 110 mm 295 24 175

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 80125 mm - - -

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 100150 mm 9 8 59

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 80125 mm - - -

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 100150 mm 115 10 94

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 80125 mm over 2x80 mm

- - -

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 100150 mm over 2x100 mm

23 175 Air 11Flue gases 5

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm110 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 110150 mm110 mm

16 132 10

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 33

Configurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 110150 mm110 mm

165 135 94

Tab23 PPS pipe reduction for each element used

Diameter 80 mmSingle

80125 mmConcentric

100 mmSingle

100150 mmConcentric

45deg elbow 12 m 10 m 11 m 10 m87deg elbow 19 m 15 m 20 m 37 mStraight inspection tube 03 m 06 m - 10 m87deg inspection elbow 19 m 20 m 48 m -Inspection T 42 m 27 m 56 m 25 mInspection tube for flexible pipe 03 m - 05 m -

573 Dimensions of flue gas outlet pipe

WarningThe pipes connected to the flue gas adapter must satisfy the following dimension requirements

d1 External dimensions of flue gas outlet pipe

Tab24 Dimensions of pipe d1 (min-max)80 mm 793 - 803 mm100 mm 993 - 1003 mm150 mm 149 - 151 mm

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipe

Tab25 Dimensions of pipe d1 (min-max) D1 (min-max)8080 mm 793 - 803 mm 793 - 803 mm100100 mm 993 - 1003 mm 993 - 1003 mm110110 mm 1093 - 1103 mm 1093 - 1103 mm150150 mm 149 - 151 mm 149 - 151 mm

Fig23 Dimensions of open connection

AD-3001094-01

oslashd1

Fig24 Dimensions of parallel connection

AD-3000963-01

oslashd1 oslashD1

5 Installation

34 Gas 120 ACE 7717202 - v03 - 24062019

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipeL1 Length difference between flue gas outlet pipe and air supply pipe

Tab26 Dimensions of pipe d1 (min-max) D1 (min-max) L1

(1) (min-max)80125 mm 793 - 803 mm 124 - 1255 mm 0 - 15 mm100150 mm 993 - 1003 mm 149 - 151 mm 0 - 15 mm

(1) Shorten the inner pipe if the length difference is too great

574 Connection to the flue gas pipe

At delivery the flue gas outletair supply is fixed inside the boiler

1 Using a long tool unlock and remove the boilers front door2 Remove the boiler outlet

3 Two options for connection to the flue gas pipe

Option Description3a Connection to a vertical flue gas pipe Position the flue gas

outletair supply directly at the boiler outlet3b Connection to a horizontal flue gas pipe Insert an outlet elshy

bow ( not supplied) before the flue gas outletair supply

ImportantLubricate the gaskets on the flue system during assembly

Fig25 Dimensions of concentric connection

AD-3000962-01

oslashd1

L1

oslashD1

Fig26

MW-2000867-02

1

2

1

Fig27

3a 3b

MW-2000868-01

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 35

Fastening the coaxial pipes Fasten the intake pipes with two galvanised Oslash 42 mm screws with a maximum length of 16 mm

CautionBefore fixing the screws make sure that at least 45 cm of pipe is inserted in the gasket of the other pipe

WarningGuarantee a minimum pipe slope towards the boiler of at least 5 cm per metre

Fig28 Fastening the coaxial pipes using screws

BO-0000030

16 mm

5 Installation

36 Gas 120 ACE 7717202 - v03 - 24062019

6 Operation

61 Settings

To configure the installation and use the boiler please refer to the control unit manual

6 Operation

7717202 - v03 - 24062019 Gas 120 ACE 37

7 Maintenance

71 General

We recommend having the boiler inspected and serviced at regular intervals

CautionDo not neglect to service the boiler Contact a qualified professional or take out a maintenance contract for the obligatory annual servicing of the boilerFailure to service the appliance voids the warranty

Danger of electric shockBefore service work is started the boiler has to be de-energised and secured from accidentally being switched back on

CautionHave an inspection carried out and the flues swept at least once a year or more depending on the regulations in force in your country

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

CautionAfter maintenance or repair work check the entire heating system to ensure that there are no leaks

CautionOnly genuine spare parts may be used

72 Specific maintenance operations

721 Cleaning the siphon

1 Remove the flue gas outlet discharge pipe

2 Remove the condensate discharge pipe 3 Remove the screw from the siphon

Fig29

1

MW-2000903-01

Fig30

2

3

MW-2000904-01

7 Maintenance

38 Gas 120 ACE 7717202 - v03 - 24062019

4 Pull the siphon downwards to disengage it and pivot it to release it

5 Flush the siphon 6 Drain the siphon

7 Fill the siphon with clean water up to the mark 8 Lubricate the siphon gasket9 Re-engage the siphon and refit the screw

10 Refit the two pipes

722 Checking the ionisation current

1 Check the ionisation current at full load and at low loadThe value is stable after 1 minute

2 Clean or replace the ionisationignition electrode if the value is lower than 4 microA

Fig31

4

90deg

MW-2000905-01

Fig32

MW-2000843-01

Fig33

MW-2000844-01

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 39

723 Replace the ionizationignition electrode

The ionizationignition electrode must be replaced if

The ionization current is lt 4 microAThe electrode is damaged or worn

1 Remove the plug of the electrode from the igniter

ImportantThe ignition cable is fixed to the electrode and therefore may not be removed

2 Remove the two screws3 Remove the entire component4 Fit the new ionizationignition electrode with a new seal5 Reassemble the unit in the reverse order to disassembly

724 Servicing the forced flue connection pipes

1 Open the inspection hatches or remove the pipes2 Check that the air supply and discharge pipes are not blocked

If necessary clean the discharge pipe3 Check the tightness of the flue gas system4 Replace the tightness gaskets and if necessary any sections of pipe

until tightness is perfect

725 Checking the burner and cleaning the heat exchanger

1 Remove the air inlet flue on the venturi2 Loosen the gland on the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

Fig34

AD-0000088-01

4

1

2

3

Fig35 Removing the fan

AD-3001178-01

1

3

4

2

5

7 Maintenance

40 Gas 120 ACE 7717202 - v03 - 24062019

6 Remove the front plate from the heat exchanger7 Carefully lift the front plate including the burner and fan away from

the heat exchanger

8 Use a vacuum cleaner fitted with a special endpiece (accessory) to clean the top part of the heat exchanger (combustion chamber)

9 Vacuum again without the top brush on the end piece10 Clean the lower section of the heat exchanger with the special

cleaning blade (accessory)11 Check (eg using a mirror) whether any visible contamination has

been left behind If it has remove it with the vacuum cleaner12 Check that the burner cover of the dismantled burner is free from

cracks andor damage If not replace the burnerServicing the burner is usually not necessary it is self-cleaning Use compressed air to carefully blow away any dust

13 Reassemble the unit in reverse order

CautionRemember to reconnect the fan plugCheck that the gasket is correctly positioned between the mixing elbow and the heat exchanger (the gasket must lie absolutely flat in the appropriate groove to ensure that no gas can leak)Tighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the front plate nuts with a torque wrench to the firmness of 10 Nm

14 Open the gas supply and switch the power supply to the boiler back on

Fig36 Removing the front plate fan and burner

AD-3001179-01

6

7

Fig37 Cleaning the heat exchanger

AD-3001180-01

10

8 9

12

11

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 41

726 Checking the non-return valve

1 Remove the air inlet pipe from the venturi2 Unscrew the gland of the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

6 Dismantle the fan7 Remove the fan together with the gas valve unit8 Inspect the non-return valve and replace it in the event of a defect or

damage or if the maintenance kit contains a non-return valve9 Reassemble in the reverse order

CautionRemember to reconnect the fan plugTighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the two fan nuts with a torque wrench to the firmness of 38 Nm

Fig38 Disconnecting the fan

AD-3001178-01

1

3

4

2

5

Fig39 Checking the non-return valve

AD-3001181-01

2x

68

7

9

7 Maintenance

42 Gas 120 ACE 7717202 - v03 - 24062019

8 Decommissioning

81 Decommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

To switch off the boiler temporarily or permanently proceed as follows

1 Switch the boiler off2 Cut the electrical power to the boiler3 Close the gas valve on the boiler4 Drain the central heating system or ensure frost protection5 Close the door of the boiler to prevent air circulating inside it6 Remove the pipe connecting the boiler to the chimney and close the

nozzle with a plug

82 Recommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

Should it prove necessary to carry out the recommissioning of the boiler proceed as follows

1 Re-establish electrical power to the boiler2 Fit and check the flue gas pipe3 Fill the siphon with water4 Fill the central heating system5 Open the boiler gas valve6 Start up the boiler

8 Decommissioning

7717202 - v03 - 24062019 Gas 120 ACE 43

9 Disposal and recyclingCautionOnly qualified professionals are permitted to remove and dispose of the boiler in accordance with local and national regulations

If you need to remove the boiler proceed as follows

1 Switch off the boiler2 Cut the power supply to the boiler3 Close the main gas valve4 Close the water mains5 Close the gas valve on the boiler6 Drain the installation7 Remove the airflue gas pipes8 Disconnect all pipes9 Dismantle the boiler

Fig40

MW-3000179-03

9 Disposal and recycling

44 Gas 120 ACE 7717202 - v03 - 24062019

10 Environmental

101 Energy savings

Energy-saving advice

Do not block ventilation outletsDo not cover the radiators Do not hang curtains in front of the radiatorsInstall reflective panels behind the radiators to prevent heat lossesInsulate the pipes in rooms that are not heated (cellars and lofts)Close the radiators in rooms not in useDo not run hot (or cold) water pointlesslyInstall an energy-saving shower head which can save up to 40 energyTake showers rather than baths A bath consumes twice as much water and energy

102 Room thermostat and settings

Various models of room thermostat are available The type of thermostat used and the parameter selected impact total energy consumption

A modulating regulator which may be combined with thermostatic valves is eco-friendly in terms of energy and offers an excellent level of comfort This combination allows you to set the temperature separately for each room However do not install thermostatic radiator valves in the room in which the room thermostat is locatedComplete opening and closing of the thermostatic radiator valves causes undesirable variations in temperature Therefore these must be openedclosed progressivelySet the room thermostat to a temperature of approximately 20degC to reduce heating costs and energy consumptionLower the thermostat setting to approximately 16degC at night or when you are not at home This reduces heating costs and energy consumptionLower the thermostat setting well before airing the roomsSet the water temperature to a lower level in summer than in winter (eg 60degC and 80degC respectively) when an ONOFF thermostatis usedWhen clock thermostats and programmable thermostats are to be set do not forget to take any holidays and days when no one is at home into account

10 Environmental

7717202 - v03 - 24062019 Gas 120 ACE 45

11 Warranty

111 General

We would like to thank you for buying one of our appliances and for your trust in our productIn order to ensure continued safe and efficient operation we recommend that the product is regularly inspected and maintainedYour installer and our service department can assist with this

112 Terms of warranty

The following provisions do not affect the application in favour of the buyer of the legal provisions with regard to hidden defects that are applicable in the buyers countryThis appliance comes with a warranty that covers all manufacturing faults the warranty period will commence on the date of purchase stated on the installers invoiceThe warranty period is stated in our price listAs a manufacturer we can by no means be held liable if the appliance is used incorrectly is poorly maintained or not maintained at all or is not installed correctly (it is your responsibility to ensure that installation is carried out by a qualified installer)In particular we cannot be held liable for material damage intangible losses or physical injury resulting from an installation that does not comply with

Legal or regulatory requirements or provisions laid down by the local authoritiesNational or local regulations and special provisions relating to the installationOur manuals and installation instructions in particular in terms of regular maintenance of the appliances

Our warranty is limited to the replacement or repair of the parts found to be defective by our technical services team excluding labour transfer and transport costsOur warranty does not cover replacement or repair costs for parts that may become defective due to normal wear incorrect usage the intervention of unqualified third parties inadequate or insufficient supervision or maintenance a mains supply that is not appropriate or the use of unsuitable or poor quality fuelSmaller parts such as motors pumps electrical valves etc are guaranteed only if these parts have never been dismantledThe rights established in European Directive 9944EEC implemented by legal decree No 24 of 2 February 2002 and published in Official Journal No 57 of 8 March 2002 remain in force

11 Warranty

46 Gas 120 ACE 7717202 - v03 - 24062019

12 Spare parts

121 General

If inspection or maintenance work bring to light the need to replace a component in the boilerProvide the reference number given in the spare parts list when ordering a spare part

CautionOnly genuine spare parts may be used

122 Spare parts lists

1221 Exchanger

Fig41

MW-6000743-01

811x

7

7

4

2

16

3

10

119

65

1

13

12

18

14

19

15

18

17

Tab27

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

1 7699615 Complete exchanger x 1 7699614 Complete exchanger x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 47

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

2 S101564 Exchanger front plate x x x3 S54731 Exchanger inspection hatch insulation x x x4 S57241 Exchanger inspection hatch gasket x x x5 S100052 M4x10 self-locking screw (x20) x x x6 S54754 FURQ65 burner x 6 S57477 FURQ85 burner x x7 7623837 Set of 10 k NTC sensors x x x8 S54755 M6 nut (x20) x x x9 7659755 M4x10 screw (x10) x x x10 S53489 Electrode gasket (x10) x x x11 7692359 Ignition electrode x x x12 7631936 Flue gas flow pipe diameter 100 mm x x x13 7624643 NTC 2x20 k flue gas sensor with gasket x x x14 7624619 Ignition transformer x x x15 S56987 ZP M6x16 screw (x10) x x x16 7616253 Valve with support x x x17 7680596 Exchanger bracket x 17 7673616 Exchanger bracket x x18 7701752 Gasket diameter 100 mm (x5) x x x19 7632708 Earth electric clip (x2) x x x

1222 Gas circuit

Fig42

MW-6000744-01

3

2

5

6

9

4

8

10

7

12

11

1

14

13

13

12 Spare parts

48 Gas 120 ACE 7717202 - v03 - 24062019

Tab28Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 S101543 Silencer x 1 S101520 Silencer x 1 S101578 Silencer x2 S54777 Venturi gasket (x5) x 2 S59215 Gas valve-venturi gasket (x5) x 2 S101593 Gaskets (kit) x3 S101726 Fan RG 1481200-3633 x x 3 S100036 Fan RG 148 1200-3633-010202 x4 S101596 Gas valve VK4115v1386 x 4 S101597 Gas valve VK4115vb1012 x 4 S101510 Gas valve GB-ND 057 XP x5 S54766 Venturi x 5 S57488 Venturi x 5 S101595 Venturi VMS 45900450-010 x6 S59215 Gas valve-venturi gasket (x5) x x 7 S57827 Gas valve unit flange x8 S57828 268x22x25 O-ring (x5) x9 S101631 Diaphragm x10 7616249 Flue gas sensor cap (5x) x x x11 S56155 238x177x2 gasket (x20) x x x12 95760050 C HC M4-12 88 ZN3 screw x x x13 S48512 M5-10 screw (x10) x x x14 S101590 Silencer retaining clip x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 49

1223 Hydraulic circuit

Fig43

MW-6000745-01

1

14

6

9

11

8

12

5

37

9

10

2

4

13

Tab29Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7680598 Complete flow pipe x 1 7670807 Complete flow pipe x x2 7672557 Complete return pipe x x x3 7674076 Complete gas pipe x 3 7680434 Complete gas pipe x 3 7670720 Complete gas pipe x4 7698560 HUBA G38 pressure gauge x x x5 94994712 PVC pipe diameter 16x12 x x x6 7699357 Water deflector diameter 100 mm x x x7 94902073 Drain valve 12 x x x8 94918138 Air vent x x x9 95013064 44x32x2 mm green gasket x x x10 95013060 24x17x2 mm green gasket x x 10 95013062 30x21x12 mm green gasket x11 7692329 Condensate hose x x x13 7706103 Assembled siphon height 160 mm x 13 7706038 Assembled siphon height 250 mm x x14 7103731 Condensate drain pan gasket x x x

12 Spare parts

50 Gas 120 ACE 7717202 - v03 - 24062019

1224 Boiler body

Fig44

MW-6000746-01

2

2

1

6

3

34

5

4

Tab30Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7686377 Assembled frame x 1 7686139 Assembled frame x x2 7679958 117x34 handle diameter 65 mm x x x3 7676037 Wheel x x x4 7688301 Frame lateral gasket x 4 7688008 Frame lateral gasket x x5 7688353 Front panel gasket x 5 7688007 Front panel gasket x x6 7693874 R4-05 front panel lock x x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 51

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

E toimistoestsystemsfi

Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 33: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

572 Lengths of the airflue gas pipes

The maximum lengths (Lmax) given in the table are valid for pipes in which the horizontal sections do not exceed one metre in total For each additional metre of horizontal pipe a multiplication coefficient of 12 must be applied when calculating the total length L The total length L is calculated by adding the lengths of the straight airflue gas pipes and the equivalent lengths of the other componentsAlways ensure that L is less than Lmax

ImportantFor the list of flue gas system accessories and the equivalent lengths refer to the current price list

Tab22 Lengths of the airflue gas pipes in metresConfigurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 100 mm 26 24 19

B23B23P

Single rigid chimney pipes (combusshytion air taken from the premises)

PPS 110 mm 40 40 40

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 80 mm - - -

B23B23P

Single flexible chimney pipes (comshybustion air taken from the premises)

PPS 110 mm 295 24 175

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 80125 mm - - -

C13C13X

Concentric rigid pipes connected to a horizontal terminal

PPSAluminium 100150 mm 9 8 59

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 80125 mm - - -

C33C33X

Concentric rigid pipes connected to a vertical terminal

PPSAluminium 100150 mm 115 10 94

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 80125 mm over 2x80 mm

- - -

C53 Bi-flow adapter and separate single rigid airflue gas pipes (combustion air taken from outside)

PPSAluminium 100150 mm over 2x100 mm

23 175 Air 11Flue gases 5

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 80125 mm110 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle rigid pipes in the chimney (combustion air in counter-current)

PPSAluminium 110150 mm110 mm

16 132 10

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 33

Configurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 110150 mm110 mm

165 135 94

Tab23 PPS pipe reduction for each element used

Diameter 80 mmSingle

80125 mmConcentric

100 mmSingle

100150 mmConcentric

45deg elbow 12 m 10 m 11 m 10 m87deg elbow 19 m 15 m 20 m 37 mStraight inspection tube 03 m 06 m - 10 m87deg inspection elbow 19 m 20 m 48 m -Inspection T 42 m 27 m 56 m 25 mInspection tube for flexible pipe 03 m - 05 m -

573 Dimensions of flue gas outlet pipe

WarningThe pipes connected to the flue gas adapter must satisfy the following dimension requirements

d1 External dimensions of flue gas outlet pipe

Tab24 Dimensions of pipe d1 (min-max)80 mm 793 - 803 mm100 mm 993 - 1003 mm150 mm 149 - 151 mm

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipe

Tab25 Dimensions of pipe d1 (min-max) D1 (min-max)8080 mm 793 - 803 mm 793 - 803 mm100100 mm 993 - 1003 mm 993 - 1003 mm110110 mm 1093 - 1103 mm 1093 - 1103 mm150150 mm 149 - 151 mm 149 - 151 mm

Fig23 Dimensions of open connection

AD-3001094-01

oslashd1

Fig24 Dimensions of parallel connection

AD-3000963-01

oslashd1 oslashD1

5 Installation

34 Gas 120 ACE 7717202 - v03 - 24062019

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipeL1 Length difference between flue gas outlet pipe and air supply pipe

Tab26 Dimensions of pipe d1 (min-max) D1 (min-max) L1

(1) (min-max)80125 mm 793 - 803 mm 124 - 1255 mm 0 - 15 mm100150 mm 993 - 1003 mm 149 - 151 mm 0 - 15 mm

(1) Shorten the inner pipe if the length difference is too great

574 Connection to the flue gas pipe

At delivery the flue gas outletair supply is fixed inside the boiler

1 Using a long tool unlock and remove the boilers front door2 Remove the boiler outlet

3 Two options for connection to the flue gas pipe

Option Description3a Connection to a vertical flue gas pipe Position the flue gas

outletair supply directly at the boiler outlet3b Connection to a horizontal flue gas pipe Insert an outlet elshy

bow ( not supplied) before the flue gas outletair supply

ImportantLubricate the gaskets on the flue system during assembly

Fig25 Dimensions of concentric connection

AD-3000962-01

oslashd1

L1

oslashD1

Fig26

MW-2000867-02

1

2

1

Fig27

3a 3b

MW-2000868-01

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 35

Fastening the coaxial pipes Fasten the intake pipes with two galvanised Oslash 42 mm screws with a maximum length of 16 mm

CautionBefore fixing the screws make sure that at least 45 cm of pipe is inserted in the gasket of the other pipe

WarningGuarantee a minimum pipe slope towards the boiler of at least 5 cm per metre

Fig28 Fastening the coaxial pipes using screws

BO-0000030

16 mm

5 Installation

36 Gas 120 ACE 7717202 - v03 - 24062019

6 Operation

61 Settings

To configure the installation and use the boiler please refer to the control unit manual

6 Operation

7717202 - v03 - 24062019 Gas 120 ACE 37

7 Maintenance

71 General

We recommend having the boiler inspected and serviced at regular intervals

CautionDo not neglect to service the boiler Contact a qualified professional or take out a maintenance contract for the obligatory annual servicing of the boilerFailure to service the appliance voids the warranty

Danger of electric shockBefore service work is started the boiler has to be de-energised and secured from accidentally being switched back on

CautionHave an inspection carried out and the flues swept at least once a year or more depending on the regulations in force in your country

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

CautionAfter maintenance or repair work check the entire heating system to ensure that there are no leaks

CautionOnly genuine spare parts may be used

72 Specific maintenance operations

721 Cleaning the siphon

1 Remove the flue gas outlet discharge pipe

2 Remove the condensate discharge pipe 3 Remove the screw from the siphon

Fig29

1

MW-2000903-01

Fig30

2

3

MW-2000904-01

7 Maintenance

38 Gas 120 ACE 7717202 - v03 - 24062019

4 Pull the siphon downwards to disengage it and pivot it to release it

5 Flush the siphon 6 Drain the siphon

7 Fill the siphon with clean water up to the mark 8 Lubricate the siphon gasket9 Re-engage the siphon and refit the screw

10 Refit the two pipes

722 Checking the ionisation current

1 Check the ionisation current at full load and at low loadThe value is stable after 1 minute

2 Clean or replace the ionisationignition electrode if the value is lower than 4 microA

Fig31

4

90deg

MW-2000905-01

Fig32

MW-2000843-01

Fig33

MW-2000844-01

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 39

723 Replace the ionizationignition electrode

The ionizationignition electrode must be replaced if

The ionization current is lt 4 microAThe electrode is damaged or worn

1 Remove the plug of the electrode from the igniter

ImportantThe ignition cable is fixed to the electrode and therefore may not be removed

2 Remove the two screws3 Remove the entire component4 Fit the new ionizationignition electrode with a new seal5 Reassemble the unit in the reverse order to disassembly

724 Servicing the forced flue connection pipes

1 Open the inspection hatches or remove the pipes2 Check that the air supply and discharge pipes are not blocked

If necessary clean the discharge pipe3 Check the tightness of the flue gas system4 Replace the tightness gaskets and if necessary any sections of pipe

until tightness is perfect

725 Checking the burner and cleaning the heat exchanger

1 Remove the air inlet flue on the venturi2 Loosen the gland on the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

Fig34

AD-0000088-01

4

1

2

3

Fig35 Removing the fan

AD-3001178-01

1

3

4

2

5

7 Maintenance

40 Gas 120 ACE 7717202 - v03 - 24062019

6 Remove the front plate from the heat exchanger7 Carefully lift the front plate including the burner and fan away from

the heat exchanger

8 Use a vacuum cleaner fitted with a special endpiece (accessory) to clean the top part of the heat exchanger (combustion chamber)

9 Vacuum again without the top brush on the end piece10 Clean the lower section of the heat exchanger with the special

cleaning blade (accessory)11 Check (eg using a mirror) whether any visible contamination has

been left behind If it has remove it with the vacuum cleaner12 Check that the burner cover of the dismantled burner is free from

cracks andor damage If not replace the burnerServicing the burner is usually not necessary it is self-cleaning Use compressed air to carefully blow away any dust

13 Reassemble the unit in reverse order

CautionRemember to reconnect the fan plugCheck that the gasket is correctly positioned between the mixing elbow and the heat exchanger (the gasket must lie absolutely flat in the appropriate groove to ensure that no gas can leak)Tighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the front plate nuts with a torque wrench to the firmness of 10 Nm

14 Open the gas supply and switch the power supply to the boiler back on

Fig36 Removing the front plate fan and burner

AD-3001179-01

6

7

Fig37 Cleaning the heat exchanger

AD-3001180-01

10

8 9

12

11

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 41

726 Checking the non-return valve

1 Remove the air inlet pipe from the venturi2 Unscrew the gland of the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

6 Dismantle the fan7 Remove the fan together with the gas valve unit8 Inspect the non-return valve and replace it in the event of a defect or

damage or if the maintenance kit contains a non-return valve9 Reassemble in the reverse order

CautionRemember to reconnect the fan plugTighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the two fan nuts with a torque wrench to the firmness of 38 Nm

Fig38 Disconnecting the fan

AD-3001178-01

1

3

4

2

5

Fig39 Checking the non-return valve

AD-3001181-01

2x

68

7

9

7 Maintenance

42 Gas 120 ACE 7717202 - v03 - 24062019

8 Decommissioning

81 Decommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

To switch off the boiler temporarily or permanently proceed as follows

1 Switch the boiler off2 Cut the electrical power to the boiler3 Close the gas valve on the boiler4 Drain the central heating system or ensure frost protection5 Close the door of the boiler to prevent air circulating inside it6 Remove the pipe connecting the boiler to the chimney and close the

nozzle with a plug

82 Recommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

Should it prove necessary to carry out the recommissioning of the boiler proceed as follows

1 Re-establish electrical power to the boiler2 Fit and check the flue gas pipe3 Fill the siphon with water4 Fill the central heating system5 Open the boiler gas valve6 Start up the boiler

8 Decommissioning

7717202 - v03 - 24062019 Gas 120 ACE 43

9 Disposal and recyclingCautionOnly qualified professionals are permitted to remove and dispose of the boiler in accordance with local and national regulations

If you need to remove the boiler proceed as follows

1 Switch off the boiler2 Cut the power supply to the boiler3 Close the main gas valve4 Close the water mains5 Close the gas valve on the boiler6 Drain the installation7 Remove the airflue gas pipes8 Disconnect all pipes9 Dismantle the boiler

Fig40

MW-3000179-03

9 Disposal and recycling

44 Gas 120 ACE 7717202 - v03 - 24062019

10 Environmental

101 Energy savings

Energy-saving advice

Do not block ventilation outletsDo not cover the radiators Do not hang curtains in front of the radiatorsInstall reflective panels behind the radiators to prevent heat lossesInsulate the pipes in rooms that are not heated (cellars and lofts)Close the radiators in rooms not in useDo not run hot (or cold) water pointlesslyInstall an energy-saving shower head which can save up to 40 energyTake showers rather than baths A bath consumes twice as much water and energy

102 Room thermostat and settings

Various models of room thermostat are available The type of thermostat used and the parameter selected impact total energy consumption

A modulating regulator which may be combined with thermostatic valves is eco-friendly in terms of energy and offers an excellent level of comfort This combination allows you to set the temperature separately for each room However do not install thermostatic radiator valves in the room in which the room thermostat is locatedComplete opening and closing of the thermostatic radiator valves causes undesirable variations in temperature Therefore these must be openedclosed progressivelySet the room thermostat to a temperature of approximately 20degC to reduce heating costs and energy consumptionLower the thermostat setting to approximately 16degC at night or when you are not at home This reduces heating costs and energy consumptionLower the thermostat setting well before airing the roomsSet the water temperature to a lower level in summer than in winter (eg 60degC and 80degC respectively) when an ONOFF thermostatis usedWhen clock thermostats and programmable thermostats are to be set do not forget to take any holidays and days when no one is at home into account

10 Environmental

7717202 - v03 - 24062019 Gas 120 ACE 45

11 Warranty

111 General

We would like to thank you for buying one of our appliances and for your trust in our productIn order to ensure continued safe and efficient operation we recommend that the product is regularly inspected and maintainedYour installer and our service department can assist with this

112 Terms of warranty

The following provisions do not affect the application in favour of the buyer of the legal provisions with regard to hidden defects that are applicable in the buyers countryThis appliance comes with a warranty that covers all manufacturing faults the warranty period will commence on the date of purchase stated on the installers invoiceThe warranty period is stated in our price listAs a manufacturer we can by no means be held liable if the appliance is used incorrectly is poorly maintained or not maintained at all or is not installed correctly (it is your responsibility to ensure that installation is carried out by a qualified installer)In particular we cannot be held liable for material damage intangible losses or physical injury resulting from an installation that does not comply with

Legal or regulatory requirements or provisions laid down by the local authoritiesNational or local regulations and special provisions relating to the installationOur manuals and installation instructions in particular in terms of regular maintenance of the appliances

Our warranty is limited to the replacement or repair of the parts found to be defective by our technical services team excluding labour transfer and transport costsOur warranty does not cover replacement or repair costs for parts that may become defective due to normal wear incorrect usage the intervention of unqualified third parties inadequate or insufficient supervision or maintenance a mains supply that is not appropriate or the use of unsuitable or poor quality fuelSmaller parts such as motors pumps electrical valves etc are guaranteed only if these parts have never been dismantledThe rights established in European Directive 9944EEC implemented by legal decree No 24 of 2 February 2002 and published in Official Journal No 57 of 8 March 2002 remain in force

11 Warranty

46 Gas 120 ACE 7717202 - v03 - 24062019

12 Spare parts

121 General

If inspection or maintenance work bring to light the need to replace a component in the boilerProvide the reference number given in the spare parts list when ordering a spare part

CautionOnly genuine spare parts may be used

122 Spare parts lists

1221 Exchanger

Fig41

MW-6000743-01

811x

7

7

4

2

16

3

10

119

65

1

13

12

18

14

19

15

18

17

Tab27

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

1 7699615 Complete exchanger x 1 7699614 Complete exchanger x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 47

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

2 S101564 Exchanger front plate x x x3 S54731 Exchanger inspection hatch insulation x x x4 S57241 Exchanger inspection hatch gasket x x x5 S100052 M4x10 self-locking screw (x20) x x x6 S54754 FURQ65 burner x 6 S57477 FURQ85 burner x x7 7623837 Set of 10 k NTC sensors x x x8 S54755 M6 nut (x20) x x x9 7659755 M4x10 screw (x10) x x x10 S53489 Electrode gasket (x10) x x x11 7692359 Ignition electrode x x x12 7631936 Flue gas flow pipe diameter 100 mm x x x13 7624643 NTC 2x20 k flue gas sensor with gasket x x x14 7624619 Ignition transformer x x x15 S56987 ZP M6x16 screw (x10) x x x16 7616253 Valve with support x x x17 7680596 Exchanger bracket x 17 7673616 Exchanger bracket x x18 7701752 Gasket diameter 100 mm (x5) x x x19 7632708 Earth electric clip (x2) x x x

1222 Gas circuit

Fig42

MW-6000744-01

3

2

5

6

9

4

8

10

7

12

11

1

14

13

13

12 Spare parts

48 Gas 120 ACE 7717202 - v03 - 24062019

Tab28Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 S101543 Silencer x 1 S101520 Silencer x 1 S101578 Silencer x2 S54777 Venturi gasket (x5) x 2 S59215 Gas valve-venturi gasket (x5) x 2 S101593 Gaskets (kit) x3 S101726 Fan RG 1481200-3633 x x 3 S100036 Fan RG 148 1200-3633-010202 x4 S101596 Gas valve VK4115v1386 x 4 S101597 Gas valve VK4115vb1012 x 4 S101510 Gas valve GB-ND 057 XP x5 S54766 Venturi x 5 S57488 Venturi x 5 S101595 Venturi VMS 45900450-010 x6 S59215 Gas valve-venturi gasket (x5) x x 7 S57827 Gas valve unit flange x8 S57828 268x22x25 O-ring (x5) x9 S101631 Diaphragm x10 7616249 Flue gas sensor cap (5x) x x x11 S56155 238x177x2 gasket (x20) x x x12 95760050 C HC M4-12 88 ZN3 screw x x x13 S48512 M5-10 screw (x10) x x x14 S101590 Silencer retaining clip x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 49

1223 Hydraulic circuit

Fig43

MW-6000745-01

1

14

6

9

11

8

12

5

37

9

10

2

4

13

Tab29Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7680598 Complete flow pipe x 1 7670807 Complete flow pipe x x2 7672557 Complete return pipe x x x3 7674076 Complete gas pipe x 3 7680434 Complete gas pipe x 3 7670720 Complete gas pipe x4 7698560 HUBA G38 pressure gauge x x x5 94994712 PVC pipe diameter 16x12 x x x6 7699357 Water deflector diameter 100 mm x x x7 94902073 Drain valve 12 x x x8 94918138 Air vent x x x9 95013064 44x32x2 mm green gasket x x x10 95013060 24x17x2 mm green gasket x x 10 95013062 30x21x12 mm green gasket x11 7692329 Condensate hose x x x13 7706103 Assembled siphon height 160 mm x 13 7706038 Assembled siphon height 250 mm x x14 7103731 Condensate drain pan gasket x x x

12 Spare parts

50 Gas 120 ACE 7717202 - v03 - 24062019

1224 Boiler body

Fig44

MW-6000746-01

2

2

1

6

3

34

5

4

Tab30Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7686377 Assembled frame x 1 7686139 Assembled frame x x2 7679958 117x34 handle diameter 65 mm x x x3 7676037 Wheel x x x4 7688301 Frame lateral gasket x 4 7688008 Frame lateral gasket x x5 7688353 Front panel gasket x 5 7688007 Front panel gasket x x6 7693874 R4-05 front panel lock x x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 51

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

E toimistoestsystemsfi

Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 34: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

Configurashytion

Description Materials Diameter Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 80125 mm80 mm

- - -

C93C93X

Concentric pipes in the boiler roomSingle flexible pipes in the chimshyney (combustion air in counter-current)

PPS 110150 mm110 mm

165 135 94

Tab23 PPS pipe reduction for each element used

Diameter 80 mmSingle

80125 mmConcentric

100 mmSingle

100150 mmConcentric

45deg elbow 12 m 10 m 11 m 10 m87deg elbow 19 m 15 m 20 m 37 mStraight inspection tube 03 m 06 m - 10 m87deg inspection elbow 19 m 20 m 48 m -Inspection T 42 m 27 m 56 m 25 mInspection tube for flexible pipe 03 m - 05 m -

573 Dimensions of flue gas outlet pipe

WarningThe pipes connected to the flue gas adapter must satisfy the following dimension requirements

d1 External dimensions of flue gas outlet pipe

Tab24 Dimensions of pipe d1 (min-max)80 mm 793 - 803 mm100 mm 993 - 1003 mm150 mm 149 - 151 mm

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipe

Tab25 Dimensions of pipe d1 (min-max) D1 (min-max)8080 mm 793 - 803 mm 793 - 803 mm100100 mm 993 - 1003 mm 993 - 1003 mm110110 mm 1093 - 1103 mm 1093 - 1103 mm150150 mm 149 - 151 mm 149 - 151 mm

Fig23 Dimensions of open connection

AD-3001094-01

oslashd1

Fig24 Dimensions of parallel connection

AD-3000963-01

oslashd1 oslashD1

5 Installation

34 Gas 120 ACE 7717202 - v03 - 24062019

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipeL1 Length difference between flue gas outlet pipe and air supply pipe

Tab26 Dimensions of pipe d1 (min-max) D1 (min-max) L1

(1) (min-max)80125 mm 793 - 803 mm 124 - 1255 mm 0 - 15 mm100150 mm 993 - 1003 mm 149 - 151 mm 0 - 15 mm

(1) Shorten the inner pipe if the length difference is too great

574 Connection to the flue gas pipe

At delivery the flue gas outletair supply is fixed inside the boiler

1 Using a long tool unlock and remove the boilers front door2 Remove the boiler outlet

3 Two options for connection to the flue gas pipe

Option Description3a Connection to a vertical flue gas pipe Position the flue gas

outletair supply directly at the boiler outlet3b Connection to a horizontal flue gas pipe Insert an outlet elshy

bow ( not supplied) before the flue gas outletair supply

ImportantLubricate the gaskets on the flue system during assembly

Fig25 Dimensions of concentric connection

AD-3000962-01

oslashd1

L1

oslashD1

Fig26

MW-2000867-02

1

2

1

Fig27

3a 3b

MW-2000868-01

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 35

Fastening the coaxial pipes Fasten the intake pipes with two galvanised Oslash 42 mm screws with a maximum length of 16 mm

CautionBefore fixing the screws make sure that at least 45 cm of pipe is inserted in the gasket of the other pipe

WarningGuarantee a minimum pipe slope towards the boiler of at least 5 cm per metre

Fig28 Fastening the coaxial pipes using screws

BO-0000030

16 mm

5 Installation

36 Gas 120 ACE 7717202 - v03 - 24062019

6 Operation

61 Settings

To configure the installation and use the boiler please refer to the control unit manual

6 Operation

7717202 - v03 - 24062019 Gas 120 ACE 37

7 Maintenance

71 General

We recommend having the boiler inspected and serviced at regular intervals

CautionDo not neglect to service the boiler Contact a qualified professional or take out a maintenance contract for the obligatory annual servicing of the boilerFailure to service the appliance voids the warranty

Danger of electric shockBefore service work is started the boiler has to be de-energised and secured from accidentally being switched back on

CautionHave an inspection carried out and the flues swept at least once a year or more depending on the regulations in force in your country

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

CautionAfter maintenance or repair work check the entire heating system to ensure that there are no leaks

CautionOnly genuine spare parts may be used

72 Specific maintenance operations

721 Cleaning the siphon

1 Remove the flue gas outlet discharge pipe

2 Remove the condensate discharge pipe 3 Remove the screw from the siphon

Fig29

1

MW-2000903-01

Fig30

2

3

MW-2000904-01

7 Maintenance

38 Gas 120 ACE 7717202 - v03 - 24062019

4 Pull the siphon downwards to disengage it and pivot it to release it

5 Flush the siphon 6 Drain the siphon

7 Fill the siphon with clean water up to the mark 8 Lubricate the siphon gasket9 Re-engage the siphon and refit the screw

10 Refit the two pipes

722 Checking the ionisation current

1 Check the ionisation current at full load and at low loadThe value is stable after 1 minute

2 Clean or replace the ionisationignition electrode if the value is lower than 4 microA

Fig31

4

90deg

MW-2000905-01

Fig32

MW-2000843-01

Fig33

MW-2000844-01

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 39

723 Replace the ionizationignition electrode

The ionizationignition electrode must be replaced if

The ionization current is lt 4 microAThe electrode is damaged or worn

1 Remove the plug of the electrode from the igniter

ImportantThe ignition cable is fixed to the electrode and therefore may not be removed

2 Remove the two screws3 Remove the entire component4 Fit the new ionizationignition electrode with a new seal5 Reassemble the unit in the reverse order to disassembly

724 Servicing the forced flue connection pipes

1 Open the inspection hatches or remove the pipes2 Check that the air supply and discharge pipes are not blocked

If necessary clean the discharge pipe3 Check the tightness of the flue gas system4 Replace the tightness gaskets and if necessary any sections of pipe

until tightness is perfect

725 Checking the burner and cleaning the heat exchanger

1 Remove the air inlet flue on the venturi2 Loosen the gland on the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

Fig34

AD-0000088-01

4

1

2

3

Fig35 Removing the fan

AD-3001178-01

1

3

4

2

5

7 Maintenance

40 Gas 120 ACE 7717202 - v03 - 24062019

6 Remove the front plate from the heat exchanger7 Carefully lift the front plate including the burner and fan away from

the heat exchanger

8 Use a vacuum cleaner fitted with a special endpiece (accessory) to clean the top part of the heat exchanger (combustion chamber)

9 Vacuum again without the top brush on the end piece10 Clean the lower section of the heat exchanger with the special

cleaning blade (accessory)11 Check (eg using a mirror) whether any visible contamination has

been left behind If it has remove it with the vacuum cleaner12 Check that the burner cover of the dismantled burner is free from

cracks andor damage If not replace the burnerServicing the burner is usually not necessary it is self-cleaning Use compressed air to carefully blow away any dust

13 Reassemble the unit in reverse order

CautionRemember to reconnect the fan plugCheck that the gasket is correctly positioned between the mixing elbow and the heat exchanger (the gasket must lie absolutely flat in the appropriate groove to ensure that no gas can leak)Tighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the front plate nuts with a torque wrench to the firmness of 10 Nm

14 Open the gas supply and switch the power supply to the boiler back on

Fig36 Removing the front plate fan and burner

AD-3001179-01

6

7

Fig37 Cleaning the heat exchanger

AD-3001180-01

10

8 9

12

11

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 41

726 Checking the non-return valve

1 Remove the air inlet pipe from the venturi2 Unscrew the gland of the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

6 Dismantle the fan7 Remove the fan together with the gas valve unit8 Inspect the non-return valve and replace it in the event of a defect or

damage or if the maintenance kit contains a non-return valve9 Reassemble in the reverse order

CautionRemember to reconnect the fan plugTighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the two fan nuts with a torque wrench to the firmness of 38 Nm

Fig38 Disconnecting the fan

AD-3001178-01

1

3

4

2

5

Fig39 Checking the non-return valve

AD-3001181-01

2x

68

7

9

7 Maintenance

42 Gas 120 ACE 7717202 - v03 - 24062019

8 Decommissioning

81 Decommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

To switch off the boiler temporarily or permanently proceed as follows

1 Switch the boiler off2 Cut the electrical power to the boiler3 Close the gas valve on the boiler4 Drain the central heating system or ensure frost protection5 Close the door of the boiler to prevent air circulating inside it6 Remove the pipe connecting the boiler to the chimney and close the

nozzle with a plug

82 Recommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

Should it prove necessary to carry out the recommissioning of the boiler proceed as follows

1 Re-establish electrical power to the boiler2 Fit and check the flue gas pipe3 Fill the siphon with water4 Fill the central heating system5 Open the boiler gas valve6 Start up the boiler

8 Decommissioning

7717202 - v03 - 24062019 Gas 120 ACE 43

9 Disposal and recyclingCautionOnly qualified professionals are permitted to remove and dispose of the boiler in accordance with local and national regulations

If you need to remove the boiler proceed as follows

1 Switch off the boiler2 Cut the power supply to the boiler3 Close the main gas valve4 Close the water mains5 Close the gas valve on the boiler6 Drain the installation7 Remove the airflue gas pipes8 Disconnect all pipes9 Dismantle the boiler

Fig40

MW-3000179-03

9 Disposal and recycling

44 Gas 120 ACE 7717202 - v03 - 24062019

10 Environmental

101 Energy savings

Energy-saving advice

Do not block ventilation outletsDo not cover the radiators Do not hang curtains in front of the radiatorsInstall reflective panels behind the radiators to prevent heat lossesInsulate the pipes in rooms that are not heated (cellars and lofts)Close the radiators in rooms not in useDo not run hot (or cold) water pointlesslyInstall an energy-saving shower head which can save up to 40 energyTake showers rather than baths A bath consumes twice as much water and energy

102 Room thermostat and settings

Various models of room thermostat are available The type of thermostat used and the parameter selected impact total energy consumption

A modulating regulator which may be combined with thermostatic valves is eco-friendly in terms of energy and offers an excellent level of comfort This combination allows you to set the temperature separately for each room However do not install thermostatic radiator valves in the room in which the room thermostat is locatedComplete opening and closing of the thermostatic radiator valves causes undesirable variations in temperature Therefore these must be openedclosed progressivelySet the room thermostat to a temperature of approximately 20degC to reduce heating costs and energy consumptionLower the thermostat setting to approximately 16degC at night or when you are not at home This reduces heating costs and energy consumptionLower the thermostat setting well before airing the roomsSet the water temperature to a lower level in summer than in winter (eg 60degC and 80degC respectively) when an ONOFF thermostatis usedWhen clock thermostats and programmable thermostats are to be set do not forget to take any holidays and days when no one is at home into account

10 Environmental

7717202 - v03 - 24062019 Gas 120 ACE 45

11 Warranty

111 General

We would like to thank you for buying one of our appliances and for your trust in our productIn order to ensure continued safe and efficient operation we recommend that the product is regularly inspected and maintainedYour installer and our service department can assist with this

112 Terms of warranty

The following provisions do not affect the application in favour of the buyer of the legal provisions with regard to hidden defects that are applicable in the buyers countryThis appliance comes with a warranty that covers all manufacturing faults the warranty period will commence on the date of purchase stated on the installers invoiceThe warranty period is stated in our price listAs a manufacturer we can by no means be held liable if the appliance is used incorrectly is poorly maintained or not maintained at all or is not installed correctly (it is your responsibility to ensure that installation is carried out by a qualified installer)In particular we cannot be held liable for material damage intangible losses or physical injury resulting from an installation that does not comply with

Legal or regulatory requirements or provisions laid down by the local authoritiesNational or local regulations and special provisions relating to the installationOur manuals and installation instructions in particular in terms of regular maintenance of the appliances

Our warranty is limited to the replacement or repair of the parts found to be defective by our technical services team excluding labour transfer and transport costsOur warranty does not cover replacement or repair costs for parts that may become defective due to normal wear incorrect usage the intervention of unqualified third parties inadequate or insufficient supervision or maintenance a mains supply that is not appropriate or the use of unsuitable or poor quality fuelSmaller parts such as motors pumps electrical valves etc are guaranteed only if these parts have never been dismantledThe rights established in European Directive 9944EEC implemented by legal decree No 24 of 2 February 2002 and published in Official Journal No 57 of 8 March 2002 remain in force

11 Warranty

46 Gas 120 ACE 7717202 - v03 - 24062019

12 Spare parts

121 General

If inspection or maintenance work bring to light the need to replace a component in the boilerProvide the reference number given in the spare parts list when ordering a spare part

CautionOnly genuine spare parts may be used

122 Spare parts lists

1221 Exchanger

Fig41

MW-6000743-01

811x

7

7

4

2

16

3

10

119

65

1

13

12

18

14

19

15

18

17

Tab27

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

1 7699615 Complete exchanger x 1 7699614 Complete exchanger x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 47

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

2 S101564 Exchanger front plate x x x3 S54731 Exchanger inspection hatch insulation x x x4 S57241 Exchanger inspection hatch gasket x x x5 S100052 M4x10 self-locking screw (x20) x x x6 S54754 FURQ65 burner x 6 S57477 FURQ85 burner x x7 7623837 Set of 10 k NTC sensors x x x8 S54755 M6 nut (x20) x x x9 7659755 M4x10 screw (x10) x x x10 S53489 Electrode gasket (x10) x x x11 7692359 Ignition electrode x x x12 7631936 Flue gas flow pipe diameter 100 mm x x x13 7624643 NTC 2x20 k flue gas sensor with gasket x x x14 7624619 Ignition transformer x x x15 S56987 ZP M6x16 screw (x10) x x x16 7616253 Valve with support x x x17 7680596 Exchanger bracket x 17 7673616 Exchanger bracket x x18 7701752 Gasket diameter 100 mm (x5) x x x19 7632708 Earth electric clip (x2) x x x

1222 Gas circuit

Fig42

MW-6000744-01

3

2

5

6

9

4

8

10

7

12

11

1

14

13

13

12 Spare parts

48 Gas 120 ACE 7717202 - v03 - 24062019

Tab28Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 S101543 Silencer x 1 S101520 Silencer x 1 S101578 Silencer x2 S54777 Venturi gasket (x5) x 2 S59215 Gas valve-venturi gasket (x5) x 2 S101593 Gaskets (kit) x3 S101726 Fan RG 1481200-3633 x x 3 S100036 Fan RG 148 1200-3633-010202 x4 S101596 Gas valve VK4115v1386 x 4 S101597 Gas valve VK4115vb1012 x 4 S101510 Gas valve GB-ND 057 XP x5 S54766 Venturi x 5 S57488 Venturi x 5 S101595 Venturi VMS 45900450-010 x6 S59215 Gas valve-venturi gasket (x5) x x 7 S57827 Gas valve unit flange x8 S57828 268x22x25 O-ring (x5) x9 S101631 Diaphragm x10 7616249 Flue gas sensor cap (5x) x x x11 S56155 238x177x2 gasket (x20) x x x12 95760050 C HC M4-12 88 ZN3 screw x x x13 S48512 M5-10 screw (x10) x x x14 S101590 Silencer retaining clip x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 49

1223 Hydraulic circuit

Fig43

MW-6000745-01

1

14

6

9

11

8

12

5

37

9

10

2

4

13

Tab29Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7680598 Complete flow pipe x 1 7670807 Complete flow pipe x x2 7672557 Complete return pipe x x x3 7674076 Complete gas pipe x 3 7680434 Complete gas pipe x 3 7670720 Complete gas pipe x4 7698560 HUBA G38 pressure gauge x x x5 94994712 PVC pipe diameter 16x12 x x x6 7699357 Water deflector diameter 100 mm x x x7 94902073 Drain valve 12 x x x8 94918138 Air vent x x x9 95013064 44x32x2 mm green gasket x x x10 95013060 24x17x2 mm green gasket x x 10 95013062 30x21x12 mm green gasket x11 7692329 Condensate hose x x x13 7706103 Assembled siphon height 160 mm x 13 7706038 Assembled siphon height 250 mm x x14 7103731 Condensate drain pan gasket x x x

12 Spare parts

50 Gas 120 ACE 7717202 - v03 - 24062019

1224 Boiler body

Fig44

MW-6000746-01

2

2

1

6

3

34

5

4

Tab30Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7686377 Assembled frame x 1 7686139 Assembled frame x x2 7679958 117x34 handle diameter 65 mm x x x3 7676037 Wheel x x x4 7688301 Frame lateral gasket x 4 7688008 Frame lateral gasket x x5 7688353 Front panel gasket x 5 7688007 Front panel gasket x x6 7693874 R4-05 front panel lock x x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 51

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

E toimistoestsystemsfi

Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 35: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

d1 External dimensions of flue gas outlet pipeD1 External dimensions of air supply pipeL1 Length difference between flue gas outlet pipe and air supply pipe

Tab26 Dimensions of pipe d1 (min-max) D1 (min-max) L1

(1) (min-max)80125 mm 793 - 803 mm 124 - 1255 mm 0 - 15 mm100150 mm 993 - 1003 mm 149 - 151 mm 0 - 15 mm

(1) Shorten the inner pipe if the length difference is too great

574 Connection to the flue gas pipe

At delivery the flue gas outletair supply is fixed inside the boiler

1 Using a long tool unlock and remove the boilers front door2 Remove the boiler outlet

3 Two options for connection to the flue gas pipe

Option Description3a Connection to a vertical flue gas pipe Position the flue gas

outletair supply directly at the boiler outlet3b Connection to a horizontal flue gas pipe Insert an outlet elshy

bow ( not supplied) before the flue gas outletair supply

ImportantLubricate the gaskets on the flue system during assembly

Fig25 Dimensions of concentric connection

AD-3000962-01

oslashd1

L1

oslashD1

Fig26

MW-2000867-02

1

2

1

Fig27

3a 3b

MW-2000868-01

5 Installation

7717202 - v03 - 24062019 Gas 120 ACE 35

Fastening the coaxial pipes Fasten the intake pipes with two galvanised Oslash 42 mm screws with a maximum length of 16 mm

CautionBefore fixing the screws make sure that at least 45 cm of pipe is inserted in the gasket of the other pipe

WarningGuarantee a minimum pipe slope towards the boiler of at least 5 cm per metre

Fig28 Fastening the coaxial pipes using screws

BO-0000030

16 mm

5 Installation

36 Gas 120 ACE 7717202 - v03 - 24062019

6 Operation

61 Settings

To configure the installation and use the boiler please refer to the control unit manual

6 Operation

7717202 - v03 - 24062019 Gas 120 ACE 37

7 Maintenance

71 General

We recommend having the boiler inspected and serviced at regular intervals

CautionDo not neglect to service the boiler Contact a qualified professional or take out a maintenance contract for the obligatory annual servicing of the boilerFailure to service the appliance voids the warranty

Danger of electric shockBefore service work is started the boiler has to be de-energised and secured from accidentally being switched back on

CautionHave an inspection carried out and the flues swept at least once a year or more depending on the regulations in force in your country

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

CautionAfter maintenance or repair work check the entire heating system to ensure that there are no leaks

CautionOnly genuine spare parts may be used

72 Specific maintenance operations

721 Cleaning the siphon

1 Remove the flue gas outlet discharge pipe

2 Remove the condensate discharge pipe 3 Remove the screw from the siphon

Fig29

1

MW-2000903-01

Fig30

2

3

MW-2000904-01

7 Maintenance

38 Gas 120 ACE 7717202 - v03 - 24062019

4 Pull the siphon downwards to disengage it and pivot it to release it

5 Flush the siphon 6 Drain the siphon

7 Fill the siphon with clean water up to the mark 8 Lubricate the siphon gasket9 Re-engage the siphon and refit the screw

10 Refit the two pipes

722 Checking the ionisation current

1 Check the ionisation current at full load and at low loadThe value is stable after 1 minute

2 Clean or replace the ionisationignition electrode if the value is lower than 4 microA

Fig31

4

90deg

MW-2000905-01

Fig32

MW-2000843-01

Fig33

MW-2000844-01

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 39

723 Replace the ionizationignition electrode

The ionizationignition electrode must be replaced if

The ionization current is lt 4 microAThe electrode is damaged or worn

1 Remove the plug of the electrode from the igniter

ImportantThe ignition cable is fixed to the electrode and therefore may not be removed

2 Remove the two screws3 Remove the entire component4 Fit the new ionizationignition electrode with a new seal5 Reassemble the unit in the reverse order to disassembly

724 Servicing the forced flue connection pipes

1 Open the inspection hatches or remove the pipes2 Check that the air supply and discharge pipes are not blocked

If necessary clean the discharge pipe3 Check the tightness of the flue gas system4 Replace the tightness gaskets and if necessary any sections of pipe

until tightness is perfect

725 Checking the burner and cleaning the heat exchanger

1 Remove the air inlet flue on the venturi2 Loosen the gland on the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

Fig34

AD-0000088-01

4

1

2

3

Fig35 Removing the fan

AD-3001178-01

1

3

4

2

5

7 Maintenance

40 Gas 120 ACE 7717202 - v03 - 24062019

6 Remove the front plate from the heat exchanger7 Carefully lift the front plate including the burner and fan away from

the heat exchanger

8 Use a vacuum cleaner fitted with a special endpiece (accessory) to clean the top part of the heat exchanger (combustion chamber)

9 Vacuum again without the top brush on the end piece10 Clean the lower section of the heat exchanger with the special

cleaning blade (accessory)11 Check (eg using a mirror) whether any visible contamination has

been left behind If it has remove it with the vacuum cleaner12 Check that the burner cover of the dismantled burner is free from

cracks andor damage If not replace the burnerServicing the burner is usually not necessary it is self-cleaning Use compressed air to carefully blow away any dust

13 Reassemble the unit in reverse order

CautionRemember to reconnect the fan plugCheck that the gasket is correctly positioned between the mixing elbow and the heat exchanger (the gasket must lie absolutely flat in the appropriate groove to ensure that no gas can leak)Tighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the front plate nuts with a torque wrench to the firmness of 10 Nm

14 Open the gas supply and switch the power supply to the boiler back on

Fig36 Removing the front plate fan and burner

AD-3001179-01

6

7

Fig37 Cleaning the heat exchanger

AD-3001180-01

10

8 9

12

11

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 41

726 Checking the non-return valve

1 Remove the air inlet pipe from the venturi2 Unscrew the gland of the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

6 Dismantle the fan7 Remove the fan together with the gas valve unit8 Inspect the non-return valve and replace it in the event of a defect or

damage or if the maintenance kit contains a non-return valve9 Reassemble in the reverse order

CautionRemember to reconnect the fan plugTighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the two fan nuts with a torque wrench to the firmness of 38 Nm

Fig38 Disconnecting the fan

AD-3001178-01

1

3

4

2

5

Fig39 Checking the non-return valve

AD-3001181-01

2x

68

7

9

7 Maintenance

42 Gas 120 ACE 7717202 - v03 - 24062019

8 Decommissioning

81 Decommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

To switch off the boiler temporarily or permanently proceed as follows

1 Switch the boiler off2 Cut the electrical power to the boiler3 Close the gas valve on the boiler4 Drain the central heating system or ensure frost protection5 Close the door of the boiler to prevent air circulating inside it6 Remove the pipe connecting the boiler to the chimney and close the

nozzle with a plug

82 Recommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

Should it prove necessary to carry out the recommissioning of the boiler proceed as follows

1 Re-establish electrical power to the boiler2 Fit and check the flue gas pipe3 Fill the siphon with water4 Fill the central heating system5 Open the boiler gas valve6 Start up the boiler

8 Decommissioning

7717202 - v03 - 24062019 Gas 120 ACE 43

9 Disposal and recyclingCautionOnly qualified professionals are permitted to remove and dispose of the boiler in accordance with local and national regulations

If you need to remove the boiler proceed as follows

1 Switch off the boiler2 Cut the power supply to the boiler3 Close the main gas valve4 Close the water mains5 Close the gas valve on the boiler6 Drain the installation7 Remove the airflue gas pipes8 Disconnect all pipes9 Dismantle the boiler

Fig40

MW-3000179-03

9 Disposal and recycling

44 Gas 120 ACE 7717202 - v03 - 24062019

10 Environmental

101 Energy savings

Energy-saving advice

Do not block ventilation outletsDo not cover the radiators Do not hang curtains in front of the radiatorsInstall reflective panels behind the radiators to prevent heat lossesInsulate the pipes in rooms that are not heated (cellars and lofts)Close the radiators in rooms not in useDo not run hot (or cold) water pointlesslyInstall an energy-saving shower head which can save up to 40 energyTake showers rather than baths A bath consumes twice as much water and energy

102 Room thermostat and settings

Various models of room thermostat are available The type of thermostat used and the parameter selected impact total energy consumption

A modulating regulator which may be combined with thermostatic valves is eco-friendly in terms of energy and offers an excellent level of comfort This combination allows you to set the temperature separately for each room However do not install thermostatic radiator valves in the room in which the room thermostat is locatedComplete opening and closing of the thermostatic radiator valves causes undesirable variations in temperature Therefore these must be openedclosed progressivelySet the room thermostat to a temperature of approximately 20degC to reduce heating costs and energy consumptionLower the thermostat setting to approximately 16degC at night or when you are not at home This reduces heating costs and energy consumptionLower the thermostat setting well before airing the roomsSet the water temperature to a lower level in summer than in winter (eg 60degC and 80degC respectively) when an ONOFF thermostatis usedWhen clock thermostats and programmable thermostats are to be set do not forget to take any holidays and days when no one is at home into account

10 Environmental

7717202 - v03 - 24062019 Gas 120 ACE 45

11 Warranty

111 General

We would like to thank you for buying one of our appliances and for your trust in our productIn order to ensure continued safe and efficient operation we recommend that the product is regularly inspected and maintainedYour installer and our service department can assist with this

112 Terms of warranty

The following provisions do not affect the application in favour of the buyer of the legal provisions with regard to hidden defects that are applicable in the buyers countryThis appliance comes with a warranty that covers all manufacturing faults the warranty period will commence on the date of purchase stated on the installers invoiceThe warranty period is stated in our price listAs a manufacturer we can by no means be held liable if the appliance is used incorrectly is poorly maintained or not maintained at all or is not installed correctly (it is your responsibility to ensure that installation is carried out by a qualified installer)In particular we cannot be held liable for material damage intangible losses or physical injury resulting from an installation that does not comply with

Legal or regulatory requirements or provisions laid down by the local authoritiesNational or local regulations and special provisions relating to the installationOur manuals and installation instructions in particular in terms of regular maintenance of the appliances

Our warranty is limited to the replacement or repair of the parts found to be defective by our technical services team excluding labour transfer and transport costsOur warranty does not cover replacement or repair costs for parts that may become defective due to normal wear incorrect usage the intervention of unqualified third parties inadequate or insufficient supervision or maintenance a mains supply that is not appropriate or the use of unsuitable or poor quality fuelSmaller parts such as motors pumps electrical valves etc are guaranteed only if these parts have never been dismantledThe rights established in European Directive 9944EEC implemented by legal decree No 24 of 2 February 2002 and published in Official Journal No 57 of 8 March 2002 remain in force

11 Warranty

46 Gas 120 ACE 7717202 - v03 - 24062019

12 Spare parts

121 General

If inspection or maintenance work bring to light the need to replace a component in the boilerProvide the reference number given in the spare parts list when ordering a spare part

CautionOnly genuine spare parts may be used

122 Spare parts lists

1221 Exchanger

Fig41

MW-6000743-01

811x

7

7

4

2

16

3

10

119

65

1

13

12

18

14

19

15

18

17

Tab27

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

1 7699615 Complete exchanger x 1 7699614 Complete exchanger x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 47

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

2 S101564 Exchanger front plate x x x3 S54731 Exchanger inspection hatch insulation x x x4 S57241 Exchanger inspection hatch gasket x x x5 S100052 M4x10 self-locking screw (x20) x x x6 S54754 FURQ65 burner x 6 S57477 FURQ85 burner x x7 7623837 Set of 10 k NTC sensors x x x8 S54755 M6 nut (x20) x x x9 7659755 M4x10 screw (x10) x x x10 S53489 Electrode gasket (x10) x x x11 7692359 Ignition electrode x x x12 7631936 Flue gas flow pipe diameter 100 mm x x x13 7624643 NTC 2x20 k flue gas sensor with gasket x x x14 7624619 Ignition transformer x x x15 S56987 ZP M6x16 screw (x10) x x x16 7616253 Valve with support x x x17 7680596 Exchanger bracket x 17 7673616 Exchanger bracket x x18 7701752 Gasket diameter 100 mm (x5) x x x19 7632708 Earth electric clip (x2) x x x

1222 Gas circuit

Fig42

MW-6000744-01

3

2

5

6

9

4

8

10

7

12

11

1

14

13

13

12 Spare parts

48 Gas 120 ACE 7717202 - v03 - 24062019

Tab28Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 S101543 Silencer x 1 S101520 Silencer x 1 S101578 Silencer x2 S54777 Venturi gasket (x5) x 2 S59215 Gas valve-venturi gasket (x5) x 2 S101593 Gaskets (kit) x3 S101726 Fan RG 1481200-3633 x x 3 S100036 Fan RG 148 1200-3633-010202 x4 S101596 Gas valve VK4115v1386 x 4 S101597 Gas valve VK4115vb1012 x 4 S101510 Gas valve GB-ND 057 XP x5 S54766 Venturi x 5 S57488 Venturi x 5 S101595 Venturi VMS 45900450-010 x6 S59215 Gas valve-venturi gasket (x5) x x 7 S57827 Gas valve unit flange x8 S57828 268x22x25 O-ring (x5) x9 S101631 Diaphragm x10 7616249 Flue gas sensor cap (5x) x x x11 S56155 238x177x2 gasket (x20) x x x12 95760050 C HC M4-12 88 ZN3 screw x x x13 S48512 M5-10 screw (x10) x x x14 S101590 Silencer retaining clip x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 49

1223 Hydraulic circuit

Fig43

MW-6000745-01

1

14

6

9

11

8

12

5

37

9

10

2

4

13

Tab29Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7680598 Complete flow pipe x 1 7670807 Complete flow pipe x x2 7672557 Complete return pipe x x x3 7674076 Complete gas pipe x 3 7680434 Complete gas pipe x 3 7670720 Complete gas pipe x4 7698560 HUBA G38 pressure gauge x x x5 94994712 PVC pipe diameter 16x12 x x x6 7699357 Water deflector diameter 100 mm x x x7 94902073 Drain valve 12 x x x8 94918138 Air vent x x x9 95013064 44x32x2 mm green gasket x x x10 95013060 24x17x2 mm green gasket x x 10 95013062 30x21x12 mm green gasket x11 7692329 Condensate hose x x x13 7706103 Assembled siphon height 160 mm x 13 7706038 Assembled siphon height 250 mm x x14 7103731 Condensate drain pan gasket x x x

12 Spare parts

50 Gas 120 ACE 7717202 - v03 - 24062019

1224 Boiler body

Fig44

MW-6000746-01

2

2

1

6

3

34

5

4

Tab30Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7686377 Assembled frame x 1 7686139 Assembled frame x x2 7679958 117x34 handle diameter 65 mm x x x3 7676037 Wheel x x x4 7688301 Frame lateral gasket x 4 7688008 Frame lateral gasket x x5 7688353 Front panel gasket x 5 7688007 Front panel gasket x x6 7693874 R4-05 front panel lock x x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 51

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

E toimistoestsystemsfi

Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 36: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

Fastening the coaxial pipes Fasten the intake pipes with two galvanised Oslash 42 mm screws with a maximum length of 16 mm

CautionBefore fixing the screws make sure that at least 45 cm of pipe is inserted in the gasket of the other pipe

WarningGuarantee a minimum pipe slope towards the boiler of at least 5 cm per metre

Fig28 Fastening the coaxial pipes using screws

BO-0000030

16 mm

5 Installation

36 Gas 120 ACE 7717202 - v03 - 24062019

6 Operation

61 Settings

To configure the installation and use the boiler please refer to the control unit manual

6 Operation

7717202 - v03 - 24062019 Gas 120 ACE 37

7 Maintenance

71 General

We recommend having the boiler inspected and serviced at regular intervals

CautionDo not neglect to service the boiler Contact a qualified professional or take out a maintenance contract for the obligatory annual servicing of the boilerFailure to service the appliance voids the warranty

Danger of electric shockBefore service work is started the boiler has to be de-energised and secured from accidentally being switched back on

CautionHave an inspection carried out and the flues swept at least once a year or more depending on the regulations in force in your country

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

CautionAfter maintenance or repair work check the entire heating system to ensure that there are no leaks

CautionOnly genuine spare parts may be used

72 Specific maintenance operations

721 Cleaning the siphon

1 Remove the flue gas outlet discharge pipe

2 Remove the condensate discharge pipe 3 Remove the screw from the siphon

Fig29

1

MW-2000903-01

Fig30

2

3

MW-2000904-01

7 Maintenance

38 Gas 120 ACE 7717202 - v03 - 24062019

4 Pull the siphon downwards to disengage it and pivot it to release it

5 Flush the siphon 6 Drain the siphon

7 Fill the siphon with clean water up to the mark 8 Lubricate the siphon gasket9 Re-engage the siphon and refit the screw

10 Refit the two pipes

722 Checking the ionisation current

1 Check the ionisation current at full load and at low loadThe value is stable after 1 minute

2 Clean or replace the ionisationignition electrode if the value is lower than 4 microA

Fig31

4

90deg

MW-2000905-01

Fig32

MW-2000843-01

Fig33

MW-2000844-01

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 39

723 Replace the ionizationignition electrode

The ionizationignition electrode must be replaced if

The ionization current is lt 4 microAThe electrode is damaged or worn

1 Remove the plug of the electrode from the igniter

ImportantThe ignition cable is fixed to the electrode and therefore may not be removed

2 Remove the two screws3 Remove the entire component4 Fit the new ionizationignition electrode with a new seal5 Reassemble the unit in the reverse order to disassembly

724 Servicing the forced flue connection pipes

1 Open the inspection hatches or remove the pipes2 Check that the air supply and discharge pipes are not blocked

If necessary clean the discharge pipe3 Check the tightness of the flue gas system4 Replace the tightness gaskets and if necessary any sections of pipe

until tightness is perfect

725 Checking the burner and cleaning the heat exchanger

1 Remove the air inlet flue on the venturi2 Loosen the gland on the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

Fig34

AD-0000088-01

4

1

2

3

Fig35 Removing the fan

AD-3001178-01

1

3

4

2

5

7 Maintenance

40 Gas 120 ACE 7717202 - v03 - 24062019

6 Remove the front plate from the heat exchanger7 Carefully lift the front plate including the burner and fan away from

the heat exchanger

8 Use a vacuum cleaner fitted with a special endpiece (accessory) to clean the top part of the heat exchanger (combustion chamber)

9 Vacuum again without the top brush on the end piece10 Clean the lower section of the heat exchanger with the special

cleaning blade (accessory)11 Check (eg using a mirror) whether any visible contamination has

been left behind If it has remove it with the vacuum cleaner12 Check that the burner cover of the dismantled burner is free from

cracks andor damage If not replace the burnerServicing the burner is usually not necessary it is self-cleaning Use compressed air to carefully blow away any dust

13 Reassemble the unit in reverse order

CautionRemember to reconnect the fan plugCheck that the gasket is correctly positioned between the mixing elbow and the heat exchanger (the gasket must lie absolutely flat in the appropriate groove to ensure that no gas can leak)Tighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the front plate nuts with a torque wrench to the firmness of 10 Nm

14 Open the gas supply and switch the power supply to the boiler back on

Fig36 Removing the front plate fan and burner

AD-3001179-01

6

7

Fig37 Cleaning the heat exchanger

AD-3001180-01

10

8 9

12

11

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 41

726 Checking the non-return valve

1 Remove the air inlet pipe from the venturi2 Unscrew the gland of the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

6 Dismantle the fan7 Remove the fan together with the gas valve unit8 Inspect the non-return valve and replace it in the event of a defect or

damage or if the maintenance kit contains a non-return valve9 Reassemble in the reverse order

CautionRemember to reconnect the fan plugTighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the two fan nuts with a torque wrench to the firmness of 38 Nm

Fig38 Disconnecting the fan

AD-3001178-01

1

3

4

2

5

Fig39 Checking the non-return valve

AD-3001181-01

2x

68

7

9

7 Maintenance

42 Gas 120 ACE 7717202 - v03 - 24062019

8 Decommissioning

81 Decommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

To switch off the boiler temporarily or permanently proceed as follows

1 Switch the boiler off2 Cut the electrical power to the boiler3 Close the gas valve on the boiler4 Drain the central heating system or ensure frost protection5 Close the door of the boiler to prevent air circulating inside it6 Remove the pipe connecting the boiler to the chimney and close the

nozzle with a plug

82 Recommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

Should it prove necessary to carry out the recommissioning of the boiler proceed as follows

1 Re-establish electrical power to the boiler2 Fit and check the flue gas pipe3 Fill the siphon with water4 Fill the central heating system5 Open the boiler gas valve6 Start up the boiler

8 Decommissioning

7717202 - v03 - 24062019 Gas 120 ACE 43

9 Disposal and recyclingCautionOnly qualified professionals are permitted to remove and dispose of the boiler in accordance with local and national regulations

If you need to remove the boiler proceed as follows

1 Switch off the boiler2 Cut the power supply to the boiler3 Close the main gas valve4 Close the water mains5 Close the gas valve on the boiler6 Drain the installation7 Remove the airflue gas pipes8 Disconnect all pipes9 Dismantle the boiler

Fig40

MW-3000179-03

9 Disposal and recycling

44 Gas 120 ACE 7717202 - v03 - 24062019

10 Environmental

101 Energy savings

Energy-saving advice

Do not block ventilation outletsDo not cover the radiators Do not hang curtains in front of the radiatorsInstall reflective panels behind the radiators to prevent heat lossesInsulate the pipes in rooms that are not heated (cellars and lofts)Close the radiators in rooms not in useDo not run hot (or cold) water pointlesslyInstall an energy-saving shower head which can save up to 40 energyTake showers rather than baths A bath consumes twice as much water and energy

102 Room thermostat and settings

Various models of room thermostat are available The type of thermostat used and the parameter selected impact total energy consumption

A modulating regulator which may be combined with thermostatic valves is eco-friendly in terms of energy and offers an excellent level of comfort This combination allows you to set the temperature separately for each room However do not install thermostatic radiator valves in the room in which the room thermostat is locatedComplete opening and closing of the thermostatic radiator valves causes undesirable variations in temperature Therefore these must be openedclosed progressivelySet the room thermostat to a temperature of approximately 20degC to reduce heating costs and energy consumptionLower the thermostat setting to approximately 16degC at night or when you are not at home This reduces heating costs and energy consumptionLower the thermostat setting well before airing the roomsSet the water temperature to a lower level in summer than in winter (eg 60degC and 80degC respectively) when an ONOFF thermostatis usedWhen clock thermostats and programmable thermostats are to be set do not forget to take any holidays and days when no one is at home into account

10 Environmental

7717202 - v03 - 24062019 Gas 120 ACE 45

11 Warranty

111 General

We would like to thank you for buying one of our appliances and for your trust in our productIn order to ensure continued safe and efficient operation we recommend that the product is regularly inspected and maintainedYour installer and our service department can assist with this

112 Terms of warranty

The following provisions do not affect the application in favour of the buyer of the legal provisions with regard to hidden defects that are applicable in the buyers countryThis appliance comes with a warranty that covers all manufacturing faults the warranty period will commence on the date of purchase stated on the installers invoiceThe warranty period is stated in our price listAs a manufacturer we can by no means be held liable if the appliance is used incorrectly is poorly maintained or not maintained at all or is not installed correctly (it is your responsibility to ensure that installation is carried out by a qualified installer)In particular we cannot be held liable for material damage intangible losses or physical injury resulting from an installation that does not comply with

Legal or regulatory requirements or provisions laid down by the local authoritiesNational or local regulations and special provisions relating to the installationOur manuals and installation instructions in particular in terms of regular maintenance of the appliances

Our warranty is limited to the replacement or repair of the parts found to be defective by our technical services team excluding labour transfer and transport costsOur warranty does not cover replacement or repair costs for parts that may become defective due to normal wear incorrect usage the intervention of unqualified third parties inadequate or insufficient supervision or maintenance a mains supply that is not appropriate or the use of unsuitable or poor quality fuelSmaller parts such as motors pumps electrical valves etc are guaranteed only if these parts have never been dismantledThe rights established in European Directive 9944EEC implemented by legal decree No 24 of 2 February 2002 and published in Official Journal No 57 of 8 March 2002 remain in force

11 Warranty

46 Gas 120 ACE 7717202 - v03 - 24062019

12 Spare parts

121 General

If inspection or maintenance work bring to light the need to replace a component in the boilerProvide the reference number given in the spare parts list when ordering a spare part

CautionOnly genuine spare parts may be used

122 Spare parts lists

1221 Exchanger

Fig41

MW-6000743-01

811x

7

7

4

2

16

3

10

119

65

1

13

12

18

14

19

15

18

17

Tab27

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

1 7699615 Complete exchanger x 1 7699614 Complete exchanger x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 47

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

2 S101564 Exchanger front plate x x x3 S54731 Exchanger inspection hatch insulation x x x4 S57241 Exchanger inspection hatch gasket x x x5 S100052 M4x10 self-locking screw (x20) x x x6 S54754 FURQ65 burner x 6 S57477 FURQ85 burner x x7 7623837 Set of 10 k NTC sensors x x x8 S54755 M6 nut (x20) x x x9 7659755 M4x10 screw (x10) x x x10 S53489 Electrode gasket (x10) x x x11 7692359 Ignition electrode x x x12 7631936 Flue gas flow pipe diameter 100 mm x x x13 7624643 NTC 2x20 k flue gas sensor with gasket x x x14 7624619 Ignition transformer x x x15 S56987 ZP M6x16 screw (x10) x x x16 7616253 Valve with support x x x17 7680596 Exchanger bracket x 17 7673616 Exchanger bracket x x18 7701752 Gasket diameter 100 mm (x5) x x x19 7632708 Earth electric clip (x2) x x x

1222 Gas circuit

Fig42

MW-6000744-01

3

2

5

6

9

4

8

10

7

12

11

1

14

13

13

12 Spare parts

48 Gas 120 ACE 7717202 - v03 - 24062019

Tab28Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 S101543 Silencer x 1 S101520 Silencer x 1 S101578 Silencer x2 S54777 Venturi gasket (x5) x 2 S59215 Gas valve-venturi gasket (x5) x 2 S101593 Gaskets (kit) x3 S101726 Fan RG 1481200-3633 x x 3 S100036 Fan RG 148 1200-3633-010202 x4 S101596 Gas valve VK4115v1386 x 4 S101597 Gas valve VK4115vb1012 x 4 S101510 Gas valve GB-ND 057 XP x5 S54766 Venturi x 5 S57488 Venturi x 5 S101595 Venturi VMS 45900450-010 x6 S59215 Gas valve-venturi gasket (x5) x x 7 S57827 Gas valve unit flange x8 S57828 268x22x25 O-ring (x5) x9 S101631 Diaphragm x10 7616249 Flue gas sensor cap (5x) x x x11 S56155 238x177x2 gasket (x20) x x x12 95760050 C HC M4-12 88 ZN3 screw x x x13 S48512 M5-10 screw (x10) x x x14 S101590 Silencer retaining clip x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 49

1223 Hydraulic circuit

Fig43

MW-6000745-01

1

14

6

9

11

8

12

5

37

9

10

2

4

13

Tab29Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7680598 Complete flow pipe x 1 7670807 Complete flow pipe x x2 7672557 Complete return pipe x x x3 7674076 Complete gas pipe x 3 7680434 Complete gas pipe x 3 7670720 Complete gas pipe x4 7698560 HUBA G38 pressure gauge x x x5 94994712 PVC pipe diameter 16x12 x x x6 7699357 Water deflector diameter 100 mm x x x7 94902073 Drain valve 12 x x x8 94918138 Air vent x x x9 95013064 44x32x2 mm green gasket x x x10 95013060 24x17x2 mm green gasket x x 10 95013062 30x21x12 mm green gasket x11 7692329 Condensate hose x x x13 7706103 Assembled siphon height 160 mm x 13 7706038 Assembled siphon height 250 mm x x14 7103731 Condensate drain pan gasket x x x

12 Spare parts

50 Gas 120 ACE 7717202 - v03 - 24062019

1224 Boiler body

Fig44

MW-6000746-01

2

2

1

6

3

34

5

4

Tab30Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7686377 Assembled frame x 1 7686139 Assembled frame x x2 7679958 117x34 handle diameter 65 mm x x x3 7676037 Wheel x x x4 7688301 Frame lateral gasket x 4 7688008 Frame lateral gasket x x5 7688353 Front panel gasket x 5 7688007 Front panel gasket x x6 7693874 R4-05 front panel lock x x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 51

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

E toimistoestsystemsfi

Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 37: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

6 Operation

61 Settings

To configure the installation and use the boiler please refer to the control unit manual

6 Operation

7717202 - v03 - 24062019 Gas 120 ACE 37

7 Maintenance

71 General

We recommend having the boiler inspected and serviced at regular intervals

CautionDo not neglect to service the boiler Contact a qualified professional or take out a maintenance contract for the obligatory annual servicing of the boilerFailure to service the appliance voids the warranty

Danger of electric shockBefore service work is started the boiler has to be de-energised and secured from accidentally being switched back on

CautionHave an inspection carried out and the flues swept at least once a year or more depending on the regulations in force in your country

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

CautionAfter maintenance or repair work check the entire heating system to ensure that there are no leaks

CautionOnly genuine spare parts may be used

72 Specific maintenance operations

721 Cleaning the siphon

1 Remove the flue gas outlet discharge pipe

2 Remove the condensate discharge pipe 3 Remove the screw from the siphon

Fig29

1

MW-2000903-01

Fig30

2

3

MW-2000904-01

7 Maintenance

38 Gas 120 ACE 7717202 - v03 - 24062019

4 Pull the siphon downwards to disengage it and pivot it to release it

5 Flush the siphon 6 Drain the siphon

7 Fill the siphon with clean water up to the mark 8 Lubricate the siphon gasket9 Re-engage the siphon and refit the screw

10 Refit the two pipes

722 Checking the ionisation current

1 Check the ionisation current at full load and at low loadThe value is stable after 1 minute

2 Clean or replace the ionisationignition electrode if the value is lower than 4 microA

Fig31

4

90deg

MW-2000905-01

Fig32

MW-2000843-01

Fig33

MW-2000844-01

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 39

723 Replace the ionizationignition electrode

The ionizationignition electrode must be replaced if

The ionization current is lt 4 microAThe electrode is damaged or worn

1 Remove the plug of the electrode from the igniter

ImportantThe ignition cable is fixed to the electrode and therefore may not be removed

2 Remove the two screws3 Remove the entire component4 Fit the new ionizationignition electrode with a new seal5 Reassemble the unit in the reverse order to disassembly

724 Servicing the forced flue connection pipes

1 Open the inspection hatches or remove the pipes2 Check that the air supply and discharge pipes are not blocked

If necessary clean the discharge pipe3 Check the tightness of the flue gas system4 Replace the tightness gaskets and if necessary any sections of pipe

until tightness is perfect

725 Checking the burner and cleaning the heat exchanger

1 Remove the air inlet flue on the venturi2 Loosen the gland on the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

Fig34

AD-0000088-01

4

1

2

3

Fig35 Removing the fan

AD-3001178-01

1

3

4

2

5

7 Maintenance

40 Gas 120 ACE 7717202 - v03 - 24062019

6 Remove the front plate from the heat exchanger7 Carefully lift the front plate including the burner and fan away from

the heat exchanger

8 Use a vacuum cleaner fitted with a special endpiece (accessory) to clean the top part of the heat exchanger (combustion chamber)

9 Vacuum again without the top brush on the end piece10 Clean the lower section of the heat exchanger with the special

cleaning blade (accessory)11 Check (eg using a mirror) whether any visible contamination has

been left behind If it has remove it with the vacuum cleaner12 Check that the burner cover of the dismantled burner is free from

cracks andor damage If not replace the burnerServicing the burner is usually not necessary it is self-cleaning Use compressed air to carefully blow away any dust

13 Reassemble the unit in reverse order

CautionRemember to reconnect the fan plugCheck that the gasket is correctly positioned between the mixing elbow and the heat exchanger (the gasket must lie absolutely flat in the appropriate groove to ensure that no gas can leak)Tighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the front plate nuts with a torque wrench to the firmness of 10 Nm

14 Open the gas supply and switch the power supply to the boiler back on

Fig36 Removing the front plate fan and burner

AD-3001179-01

6

7

Fig37 Cleaning the heat exchanger

AD-3001180-01

10

8 9

12

11

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 41

726 Checking the non-return valve

1 Remove the air inlet pipe from the venturi2 Unscrew the gland of the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

6 Dismantle the fan7 Remove the fan together with the gas valve unit8 Inspect the non-return valve and replace it in the event of a defect or

damage or if the maintenance kit contains a non-return valve9 Reassemble in the reverse order

CautionRemember to reconnect the fan plugTighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the two fan nuts with a torque wrench to the firmness of 38 Nm

Fig38 Disconnecting the fan

AD-3001178-01

1

3

4

2

5

Fig39 Checking the non-return valve

AD-3001181-01

2x

68

7

9

7 Maintenance

42 Gas 120 ACE 7717202 - v03 - 24062019

8 Decommissioning

81 Decommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

To switch off the boiler temporarily or permanently proceed as follows

1 Switch the boiler off2 Cut the electrical power to the boiler3 Close the gas valve on the boiler4 Drain the central heating system or ensure frost protection5 Close the door of the boiler to prevent air circulating inside it6 Remove the pipe connecting the boiler to the chimney and close the

nozzle with a plug

82 Recommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

Should it prove necessary to carry out the recommissioning of the boiler proceed as follows

1 Re-establish electrical power to the boiler2 Fit and check the flue gas pipe3 Fill the siphon with water4 Fill the central heating system5 Open the boiler gas valve6 Start up the boiler

8 Decommissioning

7717202 - v03 - 24062019 Gas 120 ACE 43

9 Disposal and recyclingCautionOnly qualified professionals are permitted to remove and dispose of the boiler in accordance with local and national regulations

If you need to remove the boiler proceed as follows

1 Switch off the boiler2 Cut the power supply to the boiler3 Close the main gas valve4 Close the water mains5 Close the gas valve on the boiler6 Drain the installation7 Remove the airflue gas pipes8 Disconnect all pipes9 Dismantle the boiler

Fig40

MW-3000179-03

9 Disposal and recycling

44 Gas 120 ACE 7717202 - v03 - 24062019

10 Environmental

101 Energy savings

Energy-saving advice

Do not block ventilation outletsDo not cover the radiators Do not hang curtains in front of the radiatorsInstall reflective panels behind the radiators to prevent heat lossesInsulate the pipes in rooms that are not heated (cellars and lofts)Close the radiators in rooms not in useDo not run hot (or cold) water pointlesslyInstall an energy-saving shower head which can save up to 40 energyTake showers rather than baths A bath consumes twice as much water and energy

102 Room thermostat and settings

Various models of room thermostat are available The type of thermostat used and the parameter selected impact total energy consumption

A modulating regulator which may be combined with thermostatic valves is eco-friendly in terms of energy and offers an excellent level of comfort This combination allows you to set the temperature separately for each room However do not install thermostatic radiator valves in the room in which the room thermostat is locatedComplete opening and closing of the thermostatic radiator valves causes undesirable variations in temperature Therefore these must be openedclosed progressivelySet the room thermostat to a temperature of approximately 20degC to reduce heating costs and energy consumptionLower the thermostat setting to approximately 16degC at night or when you are not at home This reduces heating costs and energy consumptionLower the thermostat setting well before airing the roomsSet the water temperature to a lower level in summer than in winter (eg 60degC and 80degC respectively) when an ONOFF thermostatis usedWhen clock thermostats and programmable thermostats are to be set do not forget to take any holidays and days when no one is at home into account

10 Environmental

7717202 - v03 - 24062019 Gas 120 ACE 45

11 Warranty

111 General

We would like to thank you for buying one of our appliances and for your trust in our productIn order to ensure continued safe and efficient operation we recommend that the product is regularly inspected and maintainedYour installer and our service department can assist with this

112 Terms of warranty

The following provisions do not affect the application in favour of the buyer of the legal provisions with regard to hidden defects that are applicable in the buyers countryThis appliance comes with a warranty that covers all manufacturing faults the warranty period will commence on the date of purchase stated on the installers invoiceThe warranty period is stated in our price listAs a manufacturer we can by no means be held liable if the appliance is used incorrectly is poorly maintained or not maintained at all or is not installed correctly (it is your responsibility to ensure that installation is carried out by a qualified installer)In particular we cannot be held liable for material damage intangible losses or physical injury resulting from an installation that does not comply with

Legal or regulatory requirements or provisions laid down by the local authoritiesNational or local regulations and special provisions relating to the installationOur manuals and installation instructions in particular in terms of regular maintenance of the appliances

Our warranty is limited to the replacement or repair of the parts found to be defective by our technical services team excluding labour transfer and transport costsOur warranty does not cover replacement or repair costs for parts that may become defective due to normal wear incorrect usage the intervention of unqualified third parties inadequate or insufficient supervision or maintenance a mains supply that is not appropriate or the use of unsuitable or poor quality fuelSmaller parts such as motors pumps electrical valves etc are guaranteed only if these parts have never been dismantledThe rights established in European Directive 9944EEC implemented by legal decree No 24 of 2 February 2002 and published in Official Journal No 57 of 8 March 2002 remain in force

11 Warranty

46 Gas 120 ACE 7717202 - v03 - 24062019

12 Spare parts

121 General

If inspection or maintenance work bring to light the need to replace a component in the boilerProvide the reference number given in the spare parts list when ordering a spare part

CautionOnly genuine spare parts may be used

122 Spare parts lists

1221 Exchanger

Fig41

MW-6000743-01

811x

7

7

4

2

16

3

10

119

65

1

13

12

18

14

19

15

18

17

Tab27

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

1 7699615 Complete exchanger x 1 7699614 Complete exchanger x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 47

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

2 S101564 Exchanger front plate x x x3 S54731 Exchanger inspection hatch insulation x x x4 S57241 Exchanger inspection hatch gasket x x x5 S100052 M4x10 self-locking screw (x20) x x x6 S54754 FURQ65 burner x 6 S57477 FURQ85 burner x x7 7623837 Set of 10 k NTC sensors x x x8 S54755 M6 nut (x20) x x x9 7659755 M4x10 screw (x10) x x x10 S53489 Electrode gasket (x10) x x x11 7692359 Ignition electrode x x x12 7631936 Flue gas flow pipe diameter 100 mm x x x13 7624643 NTC 2x20 k flue gas sensor with gasket x x x14 7624619 Ignition transformer x x x15 S56987 ZP M6x16 screw (x10) x x x16 7616253 Valve with support x x x17 7680596 Exchanger bracket x 17 7673616 Exchanger bracket x x18 7701752 Gasket diameter 100 mm (x5) x x x19 7632708 Earth electric clip (x2) x x x

1222 Gas circuit

Fig42

MW-6000744-01

3

2

5

6

9

4

8

10

7

12

11

1

14

13

13

12 Spare parts

48 Gas 120 ACE 7717202 - v03 - 24062019

Tab28Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 S101543 Silencer x 1 S101520 Silencer x 1 S101578 Silencer x2 S54777 Venturi gasket (x5) x 2 S59215 Gas valve-venturi gasket (x5) x 2 S101593 Gaskets (kit) x3 S101726 Fan RG 1481200-3633 x x 3 S100036 Fan RG 148 1200-3633-010202 x4 S101596 Gas valve VK4115v1386 x 4 S101597 Gas valve VK4115vb1012 x 4 S101510 Gas valve GB-ND 057 XP x5 S54766 Venturi x 5 S57488 Venturi x 5 S101595 Venturi VMS 45900450-010 x6 S59215 Gas valve-venturi gasket (x5) x x 7 S57827 Gas valve unit flange x8 S57828 268x22x25 O-ring (x5) x9 S101631 Diaphragm x10 7616249 Flue gas sensor cap (5x) x x x11 S56155 238x177x2 gasket (x20) x x x12 95760050 C HC M4-12 88 ZN3 screw x x x13 S48512 M5-10 screw (x10) x x x14 S101590 Silencer retaining clip x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 49

1223 Hydraulic circuit

Fig43

MW-6000745-01

1

14

6

9

11

8

12

5

37

9

10

2

4

13

Tab29Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7680598 Complete flow pipe x 1 7670807 Complete flow pipe x x2 7672557 Complete return pipe x x x3 7674076 Complete gas pipe x 3 7680434 Complete gas pipe x 3 7670720 Complete gas pipe x4 7698560 HUBA G38 pressure gauge x x x5 94994712 PVC pipe diameter 16x12 x x x6 7699357 Water deflector diameter 100 mm x x x7 94902073 Drain valve 12 x x x8 94918138 Air vent x x x9 95013064 44x32x2 mm green gasket x x x10 95013060 24x17x2 mm green gasket x x 10 95013062 30x21x12 mm green gasket x11 7692329 Condensate hose x x x13 7706103 Assembled siphon height 160 mm x 13 7706038 Assembled siphon height 250 mm x x14 7103731 Condensate drain pan gasket x x x

12 Spare parts

50 Gas 120 ACE 7717202 - v03 - 24062019

1224 Boiler body

Fig44

MW-6000746-01

2

2

1

6

3

34

5

4

Tab30Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7686377 Assembled frame x 1 7686139 Assembled frame x x2 7679958 117x34 handle diameter 65 mm x x x3 7676037 Wheel x x x4 7688301 Frame lateral gasket x 4 7688008 Frame lateral gasket x x5 7688353 Front panel gasket x 5 7688007 Front panel gasket x x6 7693874 R4-05 front panel lock x x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 51

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

E toimistoestsystemsfi

Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 38: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

7 Maintenance

71 General

We recommend having the boiler inspected and serviced at regular intervals

CautionDo not neglect to service the boiler Contact a qualified professional or take out a maintenance contract for the obligatory annual servicing of the boilerFailure to service the appliance voids the warranty

Danger of electric shockBefore service work is started the boiler has to be de-energised and secured from accidentally being switched back on

CautionHave an inspection carried out and the flues swept at least once a year or more depending on the regulations in force in your country

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

CautionAfter maintenance or repair work check the entire heating system to ensure that there are no leaks

CautionOnly genuine spare parts may be used

72 Specific maintenance operations

721 Cleaning the siphon

1 Remove the flue gas outlet discharge pipe

2 Remove the condensate discharge pipe 3 Remove the screw from the siphon

Fig29

1

MW-2000903-01

Fig30

2

3

MW-2000904-01

7 Maintenance

38 Gas 120 ACE 7717202 - v03 - 24062019

4 Pull the siphon downwards to disengage it and pivot it to release it

5 Flush the siphon 6 Drain the siphon

7 Fill the siphon with clean water up to the mark 8 Lubricate the siphon gasket9 Re-engage the siphon and refit the screw

10 Refit the two pipes

722 Checking the ionisation current

1 Check the ionisation current at full load and at low loadThe value is stable after 1 minute

2 Clean or replace the ionisationignition electrode if the value is lower than 4 microA

Fig31

4

90deg

MW-2000905-01

Fig32

MW-2000843-01

Fig33

MW-2000844-01

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 39

723 Replace the ionizationignition electrode

The ionizationignition electrode must be replaced if

The ionization current is lt 4 microAThe electrode is damaged or worn

1 Remove the plug of the electrode from the igniter

ImportantThe ignition cable is fixed to the electrode and therefore may not be removed

2 Remove the two screws3 Remove the entire component4 Fit the new ionizationignition electrode with a new seal5 Reassemble the unit in the reverse order to disassembly

724 Servicing the forced flue connection pipes

1 Open the inspection hatches or remove the pipes2 Check that the air supply and discharge pipes are not blocked

If necessary clean the discharge pipe3 Check the tightness of the flue gas system4 Replace the tightness gaskets and if necessary any sections of pipe

until tightness is perfect

725 Checking the burner and cleaning the heat exchanger

1 Remove the air inlet flue on the venturi2 Loosen the gland on the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

Fig34

AD-0000088-01

4

1

2

3

Fig35 Removing the fan

AD-3001178-01

1

3

4

2

5

7 Maintenance

40 Gas 120 ACE 7717202 - v03 - 24062019

6 Remove the front plate from the heat exchanger7 Carefully lift the front plate including the burner and fan away from

the heat exchanger

8 Use a vacuum cleaner fitted with a special endpiece (accessory) to clean the top part of the heat exchanger (combustion chamber)

9 Vacuum again without the top brush on the end piece10 Clean the lower section of the heat exchanger with the special

cleaning blade (accessory)11 Check (eg using a mirror) whether any visible contamination has

been left behind If it has remove it with the vacuum cleaner12 Check that the burner cover of the dismantled burner is free from

cracks andor damage If not replace the burnerServicing the burner is usually not necessary it is self-cleaning Use compressed air to carefully blow away any dust

13 Reassemble the unit in reverse order

CautionRemember to reconnect the fan plugCheck that the gasket is correctly positioned between the mixing elbow and the heat exchanger (the gasket must lie absolutely flat in the appropriate groove to ensure that no gas can leak)Tighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the front plate nuts with a torque wrench to the firmness of 10 Nm

14 Open the gas supply and switch the power supply to the boiler back on

Fig36 Removing the front plate fan and burner

AD-3001179-01

6

7

Fig37 Cleaning the heat exchanger

AD-3001180-01

10

8 9

12

11

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 41

726 Checking the non-return valve

1 Remove the air inlet pipe from the venturi2 Unscrew the gland of the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

6 Dismantle the fan7 Remove the fan together with the gas valve unit8 Inspect the non-return valve and replace it in the event of a defect or

damage or if the maintenance kit contains a non-return valve9 Reassemble in the reverse order

CautionRemember to reconnect the fan plugTighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the two fan nuts with a torque wrench to the firmness of 38 Nm

Fig38 Disconnecting the fan

AD-3001178-01

1

3

4

2

5

Fig39 Checking the non-return valve

AD-3001181-01

2x

68

7

9

7 Maintenance

42 Gas 120 ACE 7717202 - v03 - 24062019

8 Decommissioning

81 Decommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

To switch off the boiler temporarily or permanently proceed as follows

1 Switch the boiler off2 Cut the electrical power to the boiler3 Close the gas valve on the boiler4 Drain the central heating system or ensure frost protection5 Close the door of the boiler to prevent air circulating inside it6 Remove the pipe connecting the boiler to the chimney and close the

nozzle with a plug

82 Recommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

Should it prove necessary to carry out the recommissioning of the boiler proceed as follows

1 Re-establish electrical power to the boiler2 Fit and check the flue gas pipe3 Fill the siphon with water4 Fill the central heating system5 Open the boiler gas valve6 Start up the boiler

8 Decommissioning

7717202 - v03 - 24062019 Gas 120 ACE 43

9 Disposal and recyclingCautionOnly qualified professionals are permitted to remove and dispose of the boiler in accordance with local and national regulations

If you need to remove the boiler proceed as follows

1 Switch off the boiler2 Cut the power supply to the boiler3 Close the main gas valve4 Close the water mains5 Close the gas valve on the boiler6 Drain the installation7 Remove the airflue gas pipes8 Disconnect all pipes9 Dismantle the boiler

Fig40

MW-3000179-03

9 Disposal and recycling

44 Gas 120 ACE 7717202 - v03 - 24062019

10 Environmental

101 Energy savings

Energy-saving advice

Do not block ventilation outletsDo not cover the radiators Do not hang curtains in front of the radiatorsInstall reflective panels behind the radiators to prevent heat lossesInsulate the pipes in rooms that are not heated (cellars and lofts)Close the radiators in rooms not in useDo not run hot (or cold) water pointlesslyInstall an energy-saving shower head which can save up to 40 energyTake showers rather than baths A bath consumes twice as much water and energy

102 Room thermostat and settings

Various models of room thermostat are available The type of thermostat used and the parameter selected impact total energy consumption

A modulating regulator which may be combined with thermostatic valves is eco-friendly in terms of energy and offers an excellent level of comfort This combination allows you to set the temperature separately for each room However do not install thermostatic radiator valves in the room in which the room thermostat is locatedComplete opening and closing of the thermostatic radiator valves causes undesirable variations in temperature Therefore these must be openedclosed progressivelySet the room thermostat to a temperature of approximately 20degC to reduce heating costs and energy consumptionLower the thermostat setting to approximately 16degC at night or when you are not at home This reduces heating costs and energy consumptionLower the thermostat setting well before airing the roomsSet the water temperature to a lower level in summer than in winter (eg 60degC and 80degC respectively) when an ONOFF thermostatis usedWhen clock thermostats and programmable thermostats are to be set do not forget to take any holidays and days when no one is at home into account

10 Environmental

7717202 - v03 - 24062019 Gas 120 ACE 45

11 Warranty

111 General

We would like to thank you for buying one of our appliances and for your trust in our productIn order to ensure continued safe and efficient operation we recommend that the product is regularly inspected and maintainedYour installer and our service department can assist with this

112 Terms of warranty

The following provisions do not affect the application in favour of the buyer of the legal provisions with regard to hidden defects that are applicable in the buyers countryThis appliance comes with a warranty that covers all manufacturing faults the warranty period will commence on the date of purchase stated on the installers invoiceThe warranty period is stated in our price listAs a manufacturer we can by no means be held liable if the appliance is used incorrectly is poorly maintained or not maintained at all or is not installed correctly (it is your responsibility to ensure that installation is carried out by a qualified installer)In particular we cannot be held liable for material damage intangible losses or physical injury resulting from an installation that does not comply with

Legal or regulatory requirements or provisions laid down by the local authoritiesNational or local regulations and special provisions relating to the installationOur manuals and installation instructions in particular in terms of regular maintenance of the appliances

Our warranty is limited to the replacement or repair of the parts found to be defective by our technical services team excluding labour transfer and transport costsOur warranty does not cover replacement or repair costs for parts that may become defective due to normal wear incorrect usage the intervention of unqualified third parties inadequate or insufficient supervision or maintenance a mains supply that is not appropriate or the use of unsuitable or poor quality fuelSmaller parts such as motors pumps electrical valves etc are guaranteed only if these parts have never been dismantledThe rights established in European Directive 9944EEC implemented by legal decree No 24 of 2 February 2002 and published in Official Journal No 57 of 8 March 2002 remain in force

11 Warranty

46 Gas 120 ACE 7717202 - v03 - 24062019

12 Spare parts

121 General

If inspection or maintenance work bring to light the need to replace a component in the boilerProvide the reference number given in the spare parts list when ordering a spare part

CautionOnly genuine spare parts may be used

122 Spare parts lists

1221 Exchanger

Fig41

MW-6000743-01

811x

7

7

4

2

16

3

10

119

65

1

13

12

18

14

19

15

18

17

Tab27

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

1 7699615 Complete exchanger x 1 7699614 Complete exchanger x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 47

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

2 S101564 Exchanger front plate x x x3 S54731 Exchanger inspection hatch insulation x x x4 S57241 Exchanger inspection hatch gasket x x x5 S100052 M4x10 self-locking screw (x20) x x x6 S54754 FURQ65 burner x 6 S57477 FURQ85 burner x x7 7623837 Set of 10 k NTC sensors x x x8 S54755 M6 nut (x20) x x x9 7659755 M4x10 screw (x10) x x x10 S53489 Electrode gasket (x10) x x x11 7692359 Ignition electrode x x x12 7631936 Flue gas flow pipe diameter 100 mm x x x13 7624643 NTC 2x20 k flue gas sensor with gasket x x x14 7624619 Ignition transformer x x x15 S56987 ZP M6x16 screw (x10) x x x16 7616253 Valve with support x x x17 7680596 Exchanger bracket x 17 7673616 Exchanger bracket x x18 7701752 Gasket diameter 100 mm (x5) x x x19 7632708 Earth electric clip (x2) x x x

1222 Gas circuit

Fig42

MW-6000744-01

3

2

5

6

9

4

8

10

7

12

11

1

14

13

13

12 Spare parts

48 Gas 120 ACE 7717202 - v03 - 24062019

Tab28Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 S101543 Silencer x 1 S101520 Silencer x 1 S101578 Silencer x2 S54777 Venturi gasket (x5) x 2 S59215 Gas valve-venturi gasket (x5) x 2 S101593 Gaskets (kit) x3 S101726 Fan RG 1481200-3633 x x 3 S100036 Fan RG 148 1200-3633-010202 x4 S101596 Gas valve VK4115v1386 x 4 S101597 Gas valve VK4115vb1012 x 4 S101510 Gas valve GB-ND 057 XP x5 S54766 Venturi x 5 S57488 Venturi x 5 S101595 Venturi VMS 45900450-010 x6 S59215 Gas valve-venturi gasket (x5) x x 7 S57827 Gas valve unit flange x8 S57828 268x22x25 O-ring (x5) x9 S101631 Diaphragm x10 7616249 Flue gas sensor cap (5x) x x x11 S56155 238x177x2 gasket (x20) x x x12 95760050 C HC M4-12 88 ZN3 screw x x x13 S48512 M5-10 screw (x10) x x x14 S101590 Silencer retaining clip x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 49

1223 Hydraulic circuit

Fig43

MW-6000745-01

1

14

6

9

11

8

12

5

37

9

10

2

4

13

Tab29Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7680598 Complete flow pipe x 1 7670807 Complete flow pipe x x2 7672557 Complete return pipe x x x3 7674076 Complete gas pipe x 3 7680434 Complete gas pipe x 3 7670720 Complete gas pipe x4 7698560 HUBA G38 pressure gauge x x x5 94994712 PVC pipe diameter 16x12 x x x6 7699357 Water deflector diameter 100 mm x x x7 94902073 Drain valve 12 x x x8 94918138 Air vent x x x9 95013064 44x32x2 mm green gasket x x x10 95013060 24x17x2 mm green gasket x x 10 95013062 30x21x12 mm green gasket x11 7692329 Condensate hose x x x13 7706103 Assembled siphon height 160 mm x 13 7706038 Assembled siphon height 250 mm x x14 7103731 Condensate drain pan gasket x x x

12 Spare parts

50 Gas 120 ACE 7717202 - v03 - 24062019

1224 Boiler body

Fig44

MW-6000746-01

2

2

1

6

3

34

5

4

Tab30Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7686377 Assembled frame x 1 7686139 Assembled frame x x2 7679958 117x34 handle diameter 65 mm x x x3 7676037 Wheel x x x4 7688301 Frame lateral gasket x 4 7688008 Frame lateral gasket x x5 7688353 Front panel gasket x 5 7688007 Front panel gasket x x6 7693874 R4-05 front panel lock x x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 51

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

E toimistoestsystemsfi

Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 39: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

4 Pull the siphon downwards to disengage it and pivot it to release it

5 Flush the siphon 6 Drain the siphon

7 Fill the siphon with clean water up to the mark 8 Lubricate the siphon gasket9 Re-engage the siphon and refit the screw

10 Refit the two pipes

722 Checking the ionisation current

1 Check the ionisation current at full load and at low loadThe value is stable after 1 minute

2 Clean or replace the ionisationignition electrode if the value is lower than 4 microA

Fig31

4

90deg

MW-2000905-01

Fig32

MW-2000843-01

Fig33

MW-2000844-01

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 39

723 Replace the ionizationignition electrode

The ionizationignition electrode must be replaced if

The ionization current is lt 4 microAThe electrode is damaged or worn

1 Remove the plug of the electrode from the igniter

ImportantThe ignition cable is fixed to the electrode and therefore may not be removed

2 Remove the two screws3 Remove the entire component4 Fit the new ionizationignition electrode with a new seal5 Reassemble the unit in the reverse order to disassembly

724 Servicing the forced flue connection pipes

1 Open the inspection hatches or remove the pipes2 Check that the air supply and discharge pipes are not blocked

If necessary clean the discharge pipe3 Check the tightness of the flue gas system4 Replace the tightness gaskets and if necessary any sections of pipe

until tightness is perfect

725 Checking the burner and cleaning the heat exchanger

1 Remove the air inlet flue on the venturi2 Loosen the gland on the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

Fig34

AD-0000088-01

4

1

2

3

Fig35 Removing the fan

AD-3001178-01

1

3

4

2

5

7 Maintenance

40 Gas 120 ACE 7717202 - v03 - 24062019

6 Remove the front plate from the heat exchanger7 Carefully lift the front plate including the burner and fan away from

the heat exchanger

8 Use a vacuum cleaner fitted with a special endpiece (accessory) to clean the top part of the heat exchanger (combustion chamber)

9 Vacuum again without the top brush on the end piece10 Clean the lower section of the heat exchanger with the special

cleaning blade (accessory)11 Check (eg using a mirror) whether any visible contamination has

been left behind If it has remove it with the vacuum cleaner12 Check that the burner cover of the dismantled burner is free from

cracks andor damage If not replace the burnerServicing the burner is usually not necessary it is self-cleaning Use compressed air to carefully blow away any dust

13 Reassemble the unit in reverse order

CautionRemember to reconnect the fan plugCheck that the gasket is correctly positioned between the mixing elbow and the heat exchanger (the gasket must lie absolutely flat in the appropriate groove to ensure that no gas can leak)Tighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the front plate nuts with a torque wrench to the firmness of 10 Nm

14 Open the gas supply and switch the power supply to the boiler back on

Fig36 Removing the front plate fan and burner

AD-3001179-01

6

7

Fig37 Cleaning the heat exchanger

AD-3001180-01

10

8 9

12

11

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 41

726 Checking the non-return valve

1 Remove the air inlet pipe from the venturi2 Unscrew the gland of the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

6 Dismantle the fan7 Remove the fan together with the gas valve unit8 Inspect the non-return valve and replace it in the event of a defect or

damage or if the maintenance kit contains a non-return valve9 Reassemble in the reverse order

CautionRemember to reconnect the fan plugTighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the two fan nuts with a torque wrench to the firmness of 38 Nm

Fig38 Disconnecting the fan

AD-3001178-01

1

3

4

2

5

Fig39 Checking the non-return valve

AD-3001181-01

2x

68

7

9

7 Maintenance

42 Gas 120 ACE 7717202 - v03 - 24062019

8 Decommissioning

81 Decommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

To switch off the boiler temporarily or permanently proceed as follows

1 Switch the boiler off2 Cut the electrical power to the boiler3 Close the gas valve on the boiler4 Drain the central heating system or ensure frost protection5 Close the door of the boiler to prevent air circulating inside it6 Remove the pipe connecting the boiler to the chimney and close the

nozzle with a plug

82 Recommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

Should it prove necessary to carry out the recommissioning of the boiler proceed as follows

1 Re-establish electrical power to the boiler2 Fit and check the flue gas pipe3 Fill the siphon with water4 Fill the central heating system5 Open the boiler gas valve6 Start up the boiler

8 Decommissioning

7717202 - v03 - 24062019 Gas 120 ACE 43

9 Disposal and recyclingCautionOnly qualified professionals are permitted to remove and dispose of the boiler in accordance with local and national regulations

If you need to remove the boiler proceed as follows

1 Switch off the boiler2 Cut the power supply to the boiler3 Close the main gas valve4 Close the water mains5 Close the gas valve on the boiler6 Drain the installation7 Remove the airflue gas pipes8 Disconnect all pipes9 Dismantle the boiler

Fig40

MW-3000179-03

9 Disposal and recycling

44 Gas 120 ACE 7717202 - v03 - 24062019

10 Environmental

101 Energy savings

Energy-saving advice

Do not block ventilation outletsDo not cover the radiators Do not hang curtains in front of the radiatorsInstall reflective panels behind the radiators to prevent heat lossesInsulate the pipes in rooms that are not heated (cellars and lofts)Close the radiators in rooms not in useDo not run hot (or cold) water pointlesslyInstall an energy-saving shower head which can save up to 40 energyTake showers rather than baths A bath consumes twice as much water and energy

102 Room thermostat and settings

Various models of room thermostat are available The type of thermostat used and the parameter selected impact total energy consumption

A modulating regulator which may be combined with thermostatic valves is eco-friendly in terms of energy and offers an excellent level of comfort This combination allows you to set the temperature separately for each room However do not install thermostatic radiator valves in the room in which the room thermostat is locatedComplete opening and closing of the thermostatic radiator valves causes undesirable variations in temperature Therefore these must be openedclosed progressivelySet the room thermostat to a temperature of approximately 20degC to reduce heating costs and energy consumptionLower the thermostat setting to approximately 16degC at night or when you are not at home This reduces heating costs and energy consumptionLower the thermostat setting well before airing the roomsSet the water temperature to a lower level in summer than in winter (eg 60degC and 80degC respectively) when an ONOFF thermostatis usedWhen clock thermostats and programmable thermostats are to be set do not forget to take any holidays and days when no one is at home into account

10 Environmental

7717202 - v03 - 24062019 Gas 120 ACE 45

11 Warranty

111 General

We would like to thank you for buying one of our appliances and for your trust in our productIn order to ensure continued safe and efficient operation we recommend that the product is regularly inspected and maintainedYour installer and our service department can assist with this

112 Terms of warranty

The following provisions do not affect the application in favour of the buyer of the legal provisions with regard to hidden defects that are applicable in the buyers countryThis appliance comes with a warranty that covers all manufacturing faults the warranty period will commence on the date of purchase stated on the installers invoiceThe warranty period is stated in our price listAs a manufacturer we can by no means be held liable if the appliance is used incorrectly is poorly maintained or not maintained at all or is not installed correctly (it is your responsibility to ensure that installation is carried out by a qualified installer)In particular we cannot be held liable for material damage intangible losses or physical injury resulting from an installation that does not comply with

Legal or regulatory requirements or provisions laid down by the local authoritiesNational or local regulations and special provisions relating to the installationOur manuals and installation instructions in particular in terms of regular maintenance of the appliances

Our warranty is limited to the replacement or repair of the parts found to be defective by our technical services team excluding labour transfer and transport costsOur warranty does not cover replacement or repair costs for parts that may become defective due to normal wear incorrect usage the intervention of unqualified third parties inadequate or insufficient supervision or maintenance a mains supply that is not appropriate or the use of unsuitable or poor quality fuelSmaller parts such as motors pumps electrical valves etc are guaranteed only if these parts have never been dismantledThe rights established in European Directive 9944EEC implemented by legal decree No 24 of 2 February 2002 and published in Official Journal No 57 of 8 March 2002 remain in force

11 Warranty

46 Gas 120 ACE 7717202 - v03 - 24062019

12 Spare parts

121 General

If inspection or maintenance work bring to light the need to replace a component in the boilerProvide the reference number given in the spare parts list when ordering a spare part

CautionOnly genuine spare parts may be used

122 Spare parts lists

1221 Exchanger

Fig41

MW-6000743-01

811x

7

7

4

2

16

3

10

119

65

1

13

12

18

14

19

15

18

17

Tab27

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

1 7699615 Complete exchanger x 1 7699614 Complete exchanger x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 47

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

2 S101564 Exchanger front plate x x x3 S54731 Exchanger inspection hatch insulation x x x4 S57241 Exchanger inspection hatch gasket x x x5 S100052 M4x10 self-locking screw (x20) x x x6 S54754 FURQ65 burner x 6 S57477 FURQ85 burner x x7 7623837 Set of 10 k NTC sensors x x x8 S54755 M6 nut (x20) x x x9 7659755 M4x10 screw (x10) x x x10 S53489 Electrode gasket (x10) x x x11 7692359 Ignition electrode x x x12 7631936 Flue gas flow pipe diameter 100 mm x x x13 7624643 NTC 2x20 k flue gas sensor with gasket x x x14 7624619 Ignition transformer x x x15 S56987 ZP M6x16 screw (x10) x x x16 7616253 Valve with support x x x17 7680596 Exchanger bracket x 17 7673616 Exchanger bracket x x18 7701752 Gasket diameter 100 mm (x5) x x x19 7632708 Earth electric clip (x2) x x x

1222 Gas circuit

Fig42

MW-6000744-01

3

2

5

6

9

4

8

10

7

12

11

1

14

13

13

12 Spare parts

48 Gas 120 ACE 7717202 - v03 - 24062019

Tab28Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 S101543 Silencer x 1 S101520 Silencer x 1 S101578 Silencer x2 S54777 Venturi gasket (x5) x 2 S59215 Gas valve-venturi gasket (x5) x 2 S101593 Gaskets (kit) x3 S101726 Fan RG 1481200-3633 x x 3 S100036 Fan RG 148 1200-3633-010202 x4 S101596 Gas valve VK4115v1386 x 4 S101597 Gas valve VK4115vb1012 x 4 S101510 Gas valve GB-ND 057 XP x5 S54766 Venturi x 5 S57488 Venturi x 5 S101595 Venturi VMS 45900450-010 x6 S59215 Gas valve-venturi gasket (x5) x x 7 S57827 Gas valve unit flange x8 S57828 268x22x25 O-ring (x5) x9 S101631 Diaphragm x10 7616249 Flue gas sensor cap (5x) x x x11 S56155 238x177x2 gasket (x20) x x x12 95760050 C HC M4-12 88 ZN3 screw x x x13 S48512 M5-10 screw (x10) x x x14 S101590 Silencer retaining clip x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 49

1223 Hydraulic circuit

Fig43

MW-6000745-01

1

14

6

9

11

8

12

5

37

9

10

2

4

13

Tab29Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7680598 Complete flow pipe x 1 7670807 Complete flow pipe x x2 7672557 Complete return pipe x x x3 7674076 Complete gas pipe x 3 7680434 Complete gas pipe x 3 7670720 Complete gas pipe x4 7698560 HUBA G38 pressure gauge x x x5 94994712 PVC pipe diameter 16x12 x x x6 7699357 Water deflector diameter 100 mm x x x7 94902073 Drain valve 12 x x x8 94918138 Air vent x x x9 95013064 44x32x2 mm green gasket x x x10 95013060 24x17x2 mm green gasket x x 10 95013062 30x21x12 mm green gasket x11 7692329 Condensate hose x x x13 7706103 Assembled siphon height 160 mm x 13 7706038 Assembled siphon height 250 mm x x14 7103731 Condensate drain pan gasket x x x

12 Spare parts

50 Gas 120 ACE 7717202 - v03 - 24062019

1224 Boiler body

Fig44

MW-6000746-01

2

2

1

6

3

34

5

4

Tab30Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7686377 Assembled frame x 1 7686139 Assembled frame x x2 7679958 117x34 handle diameter 65 mm x x x3 7676037 Wheel x x x4 7688301 Frame lateral gasket x 4 7688008 Frame lateral gasket x x5 7688353 Front panel gasket x 5 7688007 Front panel gasket x x6 7693874 R4-05 front panel lock x x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 51

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

E toimistoestsystemsfi

Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 40: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

723 Replace the ionizationignition electrode

The ionizationignition electrode must be replaced if

The ionization current is lt 4 microAThe electrode is damaged or worn

1 Remove the plug of the electrode from the igniter

ImportantThe ignition cable is fixed to the electrode and therefore may not be removed

2 Remove the two screws3 Remove the entire component4 Fit the new ionizationignition electrode with a new seal5 Reassemble the unit in the reverse order to disassembly

724 Servicing the forced flue connection pipes

1 Open the inspection hatches or remove the pipes2 Check that the air supply and discharge pipes are not blocked

If necessary clean the discharge pipe3 Check the tightness of the flue gas system4 Replace the tightness gaskets and if necessary any sections of pipe

until tightness is perfect

725 Checking the burner and cleaning the heat exchanger

1 Remove the air inlet flue on the venturi2 Loosen the gland on the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

Fig34

AD-0000088-01

4

1

2

3

Fig35 Removing the fan

AD-3001178-01

1

3

4

2

5

7 Maintenance

40 Gas 120 ACE 7717202 - v03 - 24062019

6 Remove the front plate from the heat exchanger7 Carefully lift the front plate including the burner and fan away from

the heat exchanger

8 Use a vacuum cleaner fitted with a special endpiece (accessory) to clean the top part of the heat exchanger (combustion chamber)

9 Vacuum again without the top brush on the end piece10 Clean the lower section of the heat exchanger with the special

cleaning blade (accessory)11 Check (eg using a mirror) whether any visible contamination has

been left behind If it has remove it with the vacuum cleaner12 Check that the burner cover of the dismantled burner is free from

cracks andor damage If not replace the burnerServicing the burner is usually not necessary it is self-cleaning Use compressed air to carefully blow away any dust

13 Reassemble the unit in reverse order

CautionRemember to reconnect the fan plugCheck that the gasket is correctly positioned between the mixing elbow and the heat exchanger (the gasket must lie absolutely flat in the appropriate groove to ensure that no gas can leak)Tighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the front plate nuts with a torque wrench to the firmness of 10 Nm

14 Open the gas supply and switch the power supply to the boiler back on

Fig36 Removing the front plate fan and burner

AD-3001179-01

6

7

Fig37 Cleaning the heat exchanger

AD-3001180-01

10

8 9

12

11

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 41

726 Checking the non-return valve

1 Remove the air inlet pipe from the venturi2 Unscrew the gland of the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

6 Dismantle the fan7 Remove the fan together with the gas valve unit8 Inspect the non-return valve and replace it in the event of a defect or

damage or if the maintenance kit contains a non-return valve9 Reassemble in the reverse order

CautionRemember to reconnect the fan plugTighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the two fan nuts with a torque wrench to the firmness of 38 Nm

Fig38 Disconnecting the fan

AD-3001178-01

1

3

4

2

5

Fig39 Checking the non-return valve

AD-3001181-01

2x

68

7

9

7 Maintenance

42 Gas 120 ACE 7717202 - v03 - 24062019

8 Decommissioning

81 Decommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

To switch off the boiler temporarily or permanently proceed as follows

1 Switch the boiler off2 Cut the electrical power to the boiler3 Close the gas valve on the boiler4 Drain the central heating system or ensure frost protection5 Close the door of the boiler to prevent air circulating inside it6 Remove the pipe connecting the boiler to the chimney and close the

nozzle with a plug

82 Recommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

Should it prove necessary to carry out the recommissioning of the boiler proceed as follows

1 Re-establish electrical power to the boiler2 Fit and check the flue gas pipe3 Fill the siphon with water4 Fill the central heating system5 Open the boiler gas valve6 Start up the boiler

8 Decommissioning

7717202 - v03 - 24062019 Gas 120 ACE 43

9 Disposal and recyclingCautionOnly qualified professionals are permitted to remove and dispose of the boiler in accordance with local and national regulations

If you need to remove the boiler proceed as follows

1 Switch off the boiler2 Cut the power supply to the boiler3 Close the main gas valve4 Close the water mains5 Close the gas valve on the boiler6 Drain the installation7 Remove the airflue gas pipes8 Disconnect all pipes9 Dismantle the boiler

Fig40

MW-3000179-03

9 Disposal and recycling

44 Gas 120 ACE 7717202 - v03 - 24062019

10 Environmental

101 Energy savings

Energy-saving advice

Do not block ventilation outletsDo not cover the radiators Do not hang curtains in front of the radiatorsInstall reflective panels behind the radiators to prevent heat lossesInsulate the pipes in rooms that are not heated (cellars and lofts)Close the radiators in rooms not in useDo not run hot (or cold) water pointlesslyInstall an energy-saving shower head which can save up to 40 energyTake showers rather than baths A bath consumes twice as much water and energy

102 Room thermostat and settings

Various models of room thermostat are available The type of thermostat used and the parameter selected impact total energy consumption

A modulating regulator which may be combined with thermostatic valves is eco-friendly in terms of energy and offers an excellent level of comfort This combination allows you to set the temperature separately for each room However do not install thermostatic radiator valves in the room in which the room thermostat is locatedComplete opening and closing of the thermostatic radiator valves causes undesirable variations in temperature Therefore these must be openedclosed progressivelySet the room thermostat to a temperature of approximately 20degC to reduce heating costs and energy consumptionLower the thermostat setting to approximately 16degC at night or when you are not at home This reduces heating costs and energy consumptionLower the thermostat setting well before airing the roomsSet the water temperature to a lower level in summer than in winter (eg 60degC and 80degC respectively) when an ONOFF thermostatis usedWhen clock thermostats and programmable thermostats are to be set do not forget to take any holidays and days when no one is at home into account

10 Environmental

7717202 - v03 - 24062019 Gas 120 ACE 45

11 Warranty

111 General

We would like to thank you for buying one of our appliances and for your trust in our productIn order to ensure continued safe and efficient operation we recommend that the product is regularly inspected and maintainedYour installer and our service department can assist with this

112 Terms of warranty

The following provisions do not affect the application in favour of the buyer of the legal provisions with regard to hidden defects that are applicable in the buyers countryThis appliance comes with a warranty that covers all manufacturing faults the warranty period will commence on the date of purchase stated on the installers invoiceThe warranty period is stated in our price listAs a manufacturer we can by no means be held liable if the appliance is used incorrectly is poorly maintained or not maintained at all or is not installed correctly (it is your responsibility to ensure that installation is carried out by a qualified installer)In particular we cannot be held liable for material damage intangible losses or physical injury resulting from an installation that does not comply with

Legal or regulatory requirements or provisions laid down by the local authoritiesNational or local regulations and special provisions relating to the installationOur manuals and installation instructions in particular in terms of regular maintenance of the appliances

Our warranty is limited to the replacement or repair of the parts found to be defective by our technical services team excluding labour transfer and transport costsOur warranty does not cover replacement or repair costs for parts that may become defective due to normal wear incorrect usage the intervention of unqualified third parties inadequate or insufficient supervision or maintenance a mains supply that is not appropriate or the use of unsuitable or poor quality fuelSmaller parts such as motors pumps electrical valves etc are guaranteed only if these parts have never been dismantledThe rights established in European Directive 9944EEC implemented by legal decree No 24 of 2 February 2002 and published in Official Journal No 57 of 8 March 2002 remain in force

11 Warranty

46 Gas 120 ACE 7717202 - v03 - 24062019

12 Spare parts

121 General

If inspection or maintenance work bring to light the need to replace a component in the boilerProvide the reference number given in the spare parts list when ordering a spare part

CautionOnly genuine spare parts may be used

122 Spare parts lists

1221 Exchanger

Fig41

MW-6000743-01

811x

7

7

4

2

16

3

10

119

65

1

13

12

18

14

19

15

18

17

Tab27

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

1 7699615 Complete exchanger x 1 7699614 Complete exchanger x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 47

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

2 S101564 Exchanger front plate x x x3 S54731 Exchanger inspection hatch insulation x x x4 S57241 Exchanger inspection hatch gasket x x x5 S100052 M4x10 self-locking screw (x20) x x x6 S54754 FURQ65 burner x 6 S57477 FURQ85 burner x x7 7623837 Set of 10 k NTC sensors x x x8 S54755 M6 nut (x20) x x x9 7659755 M4x10 screw (x10) x x x10 S53489 Electrode gasket (x10) x x x11 7692359 Ignition electrode x x x12 7631936 Flue gas flow pipe diameter 100 mm x x x13 7624643 NTC 2x20 k flue gas sensor with gasket x x x14 7624619 Ignition transformer x x x15 S56987 ZP M6x16 screw (x10) x x x16 7616253 Valve with support x x x17 7680596 Exchanger bracket x 17 7673616 Exchanger bracket x x18 7701752 Gasket diameter 100 mm (x5) x x x19 7632708 Earth electric clip (x2) x x x

1222 Gas circuit

Fig42

MW-6000744-01

3

2

5

6

9

4

8

10

7

12

11

1

14

13

13

12 Spare parts

48 Gas 120 ACE 7717202 - v03 - 24062019

Tab28Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 S101543 Silencer x 1 S101520 Silencer x 1 S101578 Silencer x2 S54777 Venturi gasket (x5) x 2 S59215 Gas valve-venturi gasket (x5) x 2 S101593 Gaskets (kit) x3 S101726 Fan RG 1481200-3633 x x 3 S100036 Fan RG 148 1200-3633-010202 x4 S101596 Gas valve VK4115v1386 x 4 S101597 Gas valve VK4115vb1012 x 4 S101510 Gas valve GB-ND 057 XP x5 S54766 Venturi x 5 S57488 Venturi x 5 S101595 Venturi VMS 45900450-010 x6 S59215 Gas valve-venturi gasket (x5) x x 7 S57827 Gas valve unit flange x8 S57828 268x22x25 O-ring (x5) x9 S101631 Diaphragm x10 7616249 Flue gas sensor cap (5x) x x x11 S56155 238x177x2 gasket (x20) x x x12 95760050 C HC M4-12 88 ZN3 screw x x x13 S48512 M5-10 screw (x10) x x x14 S101590 Silencer retaining clip x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 49

1223 Hydraulic circuit

Fig43

MW-6000745-01

1

14

6

9

11

8

12

5

37

9

10

2

4

13

Tab29Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7680598 Complete flow pipe x 1 7670807 Complete flow pipe x x2 7672557 Complete return pipe x x x3 7674076 Complete gas pipe x 3 7680434 Complete gas pipe x 3 7670720 Complete gas pipe x4 7698560 HUBA G38 pressure gauge x x x5 94994712 PVC pipe diameter 16x12 x x x6 7699357 Water deflector diameter 100 mm x x x7 94902073 Drain valve 12 x x x8 94918138 Air vent x x x9 95013064 44x32x2 mm green gasket x x x10 95013060 24x17x2 mm green gasket x x 10 95013062 30x21x12 mm green gasket x11 7692329 Condensate hose x x x13 7706103 Assembled siphon height 160 mm x 13 7706038 Assembled siphon height 250 mm x x14 7103731 Condensate drain pan gasket x x x

12 Spare parts

50 Gas 120 ACE 7717202 - v03 - 24062019

1224 Boiler body

Fig44

MW-6000746-01

2

2

1

6

3

34

5

4

Tab30Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7686377 Assembled frame x 1 7686139 Assembled frame x x2 7679958 117x34 handle diameter 65 mm x x x3 7676037 Wheel x x x4 7688301 Frame lateral gasket x 4 7688008 Frame lateral gasket x x5 7688353 Front panel gasket x 5 7688007 Front panel gasket x x6 7693874 R4-05 front panel lock x x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 51

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

E toimistoestsystemsfi

Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 41: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

6 Remove the front plate from the heat exchanger7 Carefully lift the front plate including the burner and fan away from

the heat exchanger

8 Use a vacuum cleaner fitted with a special endpiece (accessory) to clean the top part of the heat exchanger (combustion chamber)

9 Vacuum again without the top brush on the end piece10 Clean the lower section of the heat exchanger with the special

cleaning blade (accessory)11 Check (eg using a mirror) whether any visible contamination has

been left behind If it has remove it with the vacuum cleaner12 Check that the burner cover of the dismantled burner is free from

cracks andor damage If not replace the burnerServicing the burner is usually not necessary it is self-cleaning Use compressed air to carefully blow away any dust

13 Reassemble the unit in reverse order

CautionRemember to reconnect the fan plugCheck that the gasket is correctly positioned between the mixing elbow and the heat exchanger (the gasket must lie absolutely flat in the appropriate groove to ensure that no gas can leak)Tighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the front plate nuts with a torque wrench to the firmness of 10 Nm

14 Open the gas supply and switch the power supply to the boiler back on

Fig36 Removing the front plate fan and burner

AD-3001179-01

6

7

Fig37 Cleaning the heat exchanger

AD-3001180-01

10

8 9

12

11

7 Maintenance

7717202 - v03 - 24062019 Gas 120 ACE 41

726 Checking the non-return valve

1 Remove the air inlet pipe from the venturi2 Unscrew the gland of the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

6 Dismantle the fan7 Remove the fan together with the gas valve unit8 Inspect the non-return valve and replace it in the event of a defect or

damage or if the maintenance kit contains a non-return valve9 Reassemble in the reverse order

CautionRemember to reconnect the fan plugTighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the two fan nuts with a torque wrench to the firmness of 38 Nm

Fig38 Disconnecting the fan

AD-3001178-01

1

3

4

2

5

Fig39 Checking the non-return valve

AD-3001181-01

2x

68

7

9

7 Maintenance

42 Gas 120 ACE 7717202 - v03 - 24062019

8 Decommissioning

81 Decommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

To switch off the boiler temporarily or permanently proceed as follows

1 Switch the boiler off2 Cut the electrical power to the boiler3 Close the gas valve on the boiler4 Drain the central heating system or ensure frost protection5 Close the door of the boiler to prevent air circulating inside it6 Remove the pipe connecting the boiler to the chimney and close the

nozzle with a plug

82 Recommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

Should it prove necessary to carry out the recommissioning of the boiler proceed as follows

1 Re-establish electrical power to the boiler2 Fit and check the flue gas pipe3 Fill the siphon with water4 Fill the central heating system5 Open the boiler gas valve6 Start up the boiler

8 Decommissioning

7717202 - v03 - 24062019 Gas 120 ACE 43

9 Disposal and recyclingCautionOnly qualified professionals are permitted to remove and dispose of the boiler in accordance with local and national regulations

If you need to remove the boiler proceed as follows

1 Switch off the boiler2 Cut the power supply to the boiler3 Close the main gas valve4 Close the water mains5 Close the gas valve on the boiler6 Drain the installation7 Remove the airflue gas pipes8 Disconnect all pipes9 Dismantle the boiler

Fig40

MW-3000179-03

9 Disposal and recycling

44 Gas 120 ACE 7717202 - v03 - 24062019

10 Environmental

101 Energy savings

Energy-saving advice

Do not block ventilation outletsDo not cover the radiators Do not hang curtains in front of the radiatorsInstall reflective panels behind the radiators to prevent heat lossesInsulate the pipes in rooms that are not heated (cellars and lofts)Close the radiators in rooms not in useDo not run hot (or cold) water pointlesslyInstall an energy-saving shower head which can save up to 40 energyTake showers rather than baths A bath consumes twice as much water and energy

102 Room thermostat and settings

Various models of room thermostat are available The type of thermostat used and the parameter selected impact total energy consumption

A modulating regulator which may be combined with thermostatic valves is eco-friendly in terms of energy and offers an excellent level of comfort This combination allows you to set the temperature separately for each room However do not install thermostatic radiator valves in the room in which the room thermostat is locatedComplete opening and closing of the thermostatic radiator valves causes undesirable variations in temperature Therefore these must be openedclosed progressivelySet the room thermostat to a temperature of approximately 20degC to reduce heating costs and energy consumptionLower the thermostat setting to approximately 16degC at night or when you are not at home This reduces heating costs and energy consumptionLower the thermostat setting well before airing the roomsSet the water temperature to a lower level in summer than in winter (eg 60degC and 80degC respectively) when an ONOFF thermostatis usedWhen clock thermostats and programmable thermostats are to be set do not forget to take any holidays and days when no one is at home into account

10 Environmental

7717202 - v03 - 24062019 Gas 120 ACE 45

11 Warranty

111 General

We would like to thank you for buying one of our appliances and for your trust in our productIn order to ensure continued safe and efficient operation we recommend that the product is regularly inspected and maintainedYour installer and our service department can assist with this

112 Terms of warranty

The following provisions do not affect the application in favour of the buyer of the legal provisions with regard to hidden defects that are applicable in the buyers countryThis appliance comes with a warranty that covers all manufacturing faults the warranty period will commence on the date of purchase stated on the installers invoiceThe warranty period is stated in our price listAs a manufacturer we can by no means be held liable if the appliance is used incorrectly is poorly maintained or not maintained at all or is not installed correctly (it is your responsibility to ensure that installation is carried out by a qualified installer)In particular we cannot be held liable for material damage intangible losses or physical injury resulting from an installation that does not comply with

Legal or regulatory requirements or provisions laid down by the local authoritiesNational or local regulations and special provisions relating to the installationOur manuals and installation instructions in particular in terms of regular maintenance of the appliances

Our warranty is limited to the replacement or repair of the parts found to be defective by our technical services team excluding labour transfer and transport costsOur warranty does not cover replacement or repair costs for parts that may become defective due to normal wear incorrect usage the intervention of unqualified third parties inadequate or insufficient supervision or maintenance a mains supply that is not appropriate or the use of unsuitable or poor quality fuelSmaller parts such as motors pumps electrical valves etc are guaranteed only if these parts have never been dismantledThe rights established in European Directive 9944EEC implemented by legal decree No 24 of 2 February 2002 and published in Official Journal No 57 of 8 March 2002 remain in force

11 Warranty

46 Gas 120 ACE 7717202 - v03 - 24062019

12 Spare parts

121 General

If inspection or maintenance work bring to light the need to replace a component in the boilerProvide the reference number given in the spare parts list when ordering a spare part

CautionOnly genuine spare parts may be used

122 Spare parts lists

1221 Exchanger

Fig41

MW-6000743-01

811x

7

7

4

2

16

3

10

119

65

1

13

12

18

14

19

15

18

17

Tab27

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

1 7699615 Complete exchanger x 1 7699614 Complete exchanger x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 47

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

2 S101564 Exchanger front plate x x x3 S54731 Exchanger inspection hatch insulation x x x4 S57241 Exchanger inspection hatch gasket x x x5 S100052 M4x10 self-locking screw (x20) x x x6 S54754 FURQ65 burner x 6 S57477 FURQ85 burner x x7 7623837 Set of 10 k NTC sensors x x x8 S54755 M6 nut (x20) x x x9 7659755 M4x10 screw (x10) x x x10 S53489 Electrode gasket (x10) x x x11 7692359 Ignition electrode x x x12 7631936 Flue gas flow pipe diameter 100 mm x x x13 7624643 NTC 2x20 k flue gas sensor with gasket x x x14 7624619 Ignition transformer x x x15 S56987 ZP M6x16 screw (x10) x x x16 7616253 Valve with support x x x17 7680596 Exchanger bracket x 17 7673616 Exchanger bracket x x18 7701752 Gasket diameter 100 mm (x5) x x x19 7632708 Earth electric clip (x2) x x x

1222 Gas circuit

Fig42

MW-6000744-01

3

2

5

6

9

4

8

10

7

12

11

1

14

13

13

12 Spare parts

48 Gas 120 ACE 7717202 - v03 - 24062019

Tab28Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 S101543 Silencer x 1 S101520 Silencer x 1 S101578 Silencer x2 S54777 Venturi gasket (x5) x 2 S59215 Gas valve-venturi gasket (x5) x 2 S101593 Gaskets (kit) x3 S101726 Fan RG 1481200-3633 x x 3 S100036 Fan RG 148 1200-3633-010202 x4 S101596 Gas valve VK4115v1386 x 4 S101597 Gas valve VK4115vb1012 x 4 S101510 Gas valve GB-ND 057 XP x5 S54766 Venturi x 5 S57488 Venturi x 5 S101595 Venturi VMS 45900450-010 x6 S59215 Gas valve-venturi gasket (x5) x x 7 S57827 Gas valve unit flange x8 S57828 268x22x25 O-ring (x5) x9 S101631 Diaphragm x10 7616249 Flue gas sensor cap (5x) x x x11 S56155 238x177x2 gasket (x20) x x x12 95760050 C HC M4-12 88 ZN3 screw x x x13 S48512 M5-10 screw (x10) x x x14 S101590 Silencer retaining clip x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 49

1223 Hydraulic circuit

Fig43

MW-6000745-01

1

14

6

9

11

8

12

5

37

9

10

2

4

13

Tab29Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7680598 Complete flow pipe x 1 7670807 Complete flow pipe x x2 7672557 Complete return pipe x x x3 7674076 Complete gas pipe x 3 7680434 Complete gas pipe x 3 7670720 Complete gas pipe x4 7698560 HUBA G38 pressure gauge x x x5 94994712 PVC pipe diameter 16x12 x x x6 7699357 Water deflector diameter 100 mm x x x7 94902073 Drain valve 12 x x x8 94918138 Air vent x x x9 95013064 44x32x2 mm green gasket x x x10 95013060 24x17x2 mm green gasket x x 10 95013062 30x21x12 mm green gasket x11 7692329 Condensate hose x x x13 7706103 Assembled siphon height 160 mm x 13 7706038 Assembled siphon height 250 mm x x14 7103731 Condensate drain pan gasket x x x

12 Spare parts

50 Gas 120 ACE 7717202 - v03 - 24062019

1224 Boiler body

Fig44

MW-6000746-01

2

2

1

6

3

34

5

4

Tab30Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7686377 Assembled frame x 1 7686139 Assembled frame x x2 7679958 117x34 handle diameter 65 mm x x x3 7676037 Wheel x x x4 7688301 Frame lateral gasket x 4 7688008 Frame lateral gasket x x5 7688353 Front panel gasket x 5 7688007 Front panel gasket x x6 7693874 R4-05 front panel lock x x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 51

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

E toimistoestsystemsfi

Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 42: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

726 Checking the non-return valve

1 Remove the air inlet pipe from the venturi2 Unscrew the gland of the gas valve unit3 Disconnect the fan plugs (on the front and rear)4 Remove the screwed-on plug from the gas valve unit5 Remove the ignition electrode plug from the ignition transformer

6 Dismantle the fan7 Remove the fan together with the gas valve unit8 Inspect the non-return valve and replace it in the event of a defect or

damage or if the maintenance kit contains a non-return valve9 Reassemble in the reverse order

CautionRemember to reconnect the fan plugTighten the gland on the gas valve unit with a torque wrench to the firmness of 275 NmTighten the two fan nuts with a torque wrench to the firmness of 38 Nm

Fig38 Disconnecting the fan

AD-3001178-01

1

3

4

2

5

Fig39 Checking the non-return valve

AD-3001181-01

2x

68

7

9

7 Maintenance

42 Gas 120 ACE 7717202 - v03 - 24062019

8 Decommissioning

81 Decommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

To switch off the boiler temporarily or permanently proceed as follows

1 Switch the boiler off2 Cut the electrical power to the boiler3 Close the gas valve on the boiler4 Drain the central heating system or ensure frost protection5 Close the door of the boiler to prevent air circulating inside it6 Remove the pipe connecting the boiler to the chimney and close the

nozzle with a plug

82 Recommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

Should it prove necessary to carry out the recommissioning of the boiler proceed as follows

1 Re-establish electrical power to the boiler2 Fit and check the flue gas pipe3 Fill the siphon with water4 Fill the central heating system5 Open the boiler gas valve6 Start up the boiler

8 Decommissioning

7717202 - v03 - 24062019 Gas 120 ACE 43

9 Disposal and recyclingCautionOnly qualified professionals are permitted to remove and dispose of the boiler in accordance with local and national regulations

If you need to remove the boiler proceed as follows

1 Switch off the boiler2 Cut the power supply to the boiler3 Close the main gas valve4 Close the water mains5 Close the gas valve on the boiler6 Drain the installation7 Remove the airflue gas pipes8 Disconnect all pipes9 Dismantle the boiler

Fig40

MW-3000179-03

9 Disposal and recycling

44 Gas 120 ACE 7717202 - v03 - 24062019

10 Environmental

101 Energy savings

Energy-saving advice

Do not block ventilation outletsDo not cover the radiators Do not hang curtains in front of the radiatorsInstall reflective panels behind the radiators to prevent heat lossesInsulate the pipes in rooms that are not heated (cellars and lofts)Close the radiators in rooms not in useDo not run hot (or cold) water pointlesslyInstall an energy-saving shower head which can save up to 40 energyTake showers rather than baths A bath consumes twice as much water and energy

102 Room thermostat and settings

Various models of room thermostat are available The type of thermostat used and the parameter selected impact total energy consumption

A modulating regulator which may be combined with thermostatic valves is eco-friendly in terms of energy and offers an excellent level of comfort This combination allows you to set the temperature separately for each room However do not install thermostatic radiator valves in the room in which the room thermostat is locatedComplete opening and closing of the thermostatic radiator valves causes undesirable variations in temperature Therefore these must be openedclosed progressivelySet the room thermostat to a temperature of approximately 20degC to reduce heating costs and energy consumptionLower the thermostat setting to approximately 16degC at night or when you are not at home This reduces heating costs and energy consumptionLower the thermostat setting well before airing the roomsSet the water temperature to a lower level in summer than in winter (eg 60degC and 80degC respectively) when an ONOFF thermostatis usedWhen clock thermostats and programmable thermostats are to be set do not forget to take any holidays and days when no one is at home into account

10 Environmental

7717202 - v03 - 24062019 Gas 120 ACE 45

11 Warranty

111 General

We would like to thank you for buying one of our appliances and for your trust in our productIn order to ensure continued safe and efficient operation we recommend that the product is regularly inspected and maintainedYour installer and our service department can assist with this

112 Terms of warranty

The following provisions do not affect the application in favour of the buyer of the legal provisions with regard to hidden defects that are applicable in the buyers countryThis appliance comes with a warranty that covers all manufacturing faults the warranty period will commence on the date of purchase stated on the installers invoiceThe warranty period is stated in our price listAs a manufacturer we can by no means be held liable if the appliance is used incorrectly is poorly maintained or not maintained at all or is not installed correctly (it is your responsibility to ensure that installation is carried out by a qualified installer)In particular we cannot be held liable for material damage intangible losses or physical injury resulting from an installation that does not comply with

Legal or regulatory requirements or provisions laid down by the local authoritiesNational or local regulations and special provisions relating to the installationOur manuals and installation instructions in particular in terms of regular maintenance of the appliances

Our warranty is limited to the replacement or repair of the parts found to be defective by our technical services team excluding labour transfer and transport costsOur warranty does not cover replacement or repair costs for parts that may become defective due to normal wear incorrect usage the intervention of unqualified third parties inadequate or insufficient supervision or maintenance a mains supply that is not appropriate or the use of unsuitable or poor quality fuelSmaller parts such as motors pumps electrical valves etc are guaranteed only if these parts have never been dismantledThe rights established in European Directive 9944EEC implemented by legal decree No 24 of 2 February 2002 and published in Official Journal No 57 of 8 March 2002 remain in force

11 Warranty

46 Gas 120 ACE 7717202 - v03 - 24062019

12 Spare parts

121 General

If inspection or maintenance work bring to light the need to replace a component in the boilerProvide the reference number given in the spare parts list when ordering a spare part

CautionOnly genuine spare parts may be used

122 Spare parts lists

1221 Exchanger

Fig41

MW-6000743-01

811x

7

7

4

2

16

3

10

119

65

1

13

12

18

14

19

15

18

17

Tab27

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

1 7699615 Complete exchanger x 1 7699614 Complete exchanger x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 47

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

2 S101564 Exchanger front plate x x x3 S54731 Exchanger inspection hatch insulation x x x4 S57241 Exchanger inspection hatch gasket x x x5 S100052 M4x10 self-locking screw (x20) x x x6 S54754 FURQ65 burner x 6 S57477 FURQ85 burner x x7 7623837 Set of 10 k NTC sensors x x x8 S54755 M6 nut (x20) x x x9 7659755 M4x10 screw (x10) x x x10 S53489 Electrode gasket (x10) x x x11 7692359 Ignition electrode x x x12 7631936 Flue gas flow pipe diameter 100 mm x x x13 7624643 NTC 2x20 k flue gas sensor with gasket x x x14 7624619 Ignition transformer x x x15 S56987 ZP M6x16 screw (x10) x x x16 7616253 Valve with support x x x17 7680596 Exchanger bracket x 17 7673616 Exchanger bracket x x18 7701752 Gasket diameter 100 mm (x5) x x x19 7632708 Earth electric clip (x2) x x x

1222 Gas circuit

Fig42

MW-6000744-01

3

2

5

6

9

4

8

10

7

12

11

1

14

13

13

12 Spare parts

48 Gas 120 ACE 7717202 - v03 - 24062019

Tab28Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 S101543 Silencer x 1 S101520 Silencer x 1 S101578 Silencer x2 S54777 Venturi gasket (x5) x 2 S59215 Gas valve-venturi gasket (x5) x 2 S101593 Gaskets (kit) x3 S101726 Fan RG 1481200-3633 x x 3 S100036 Fan RG 148 1200-3633-010202 x4 S101596 Gas valve VK4115v1386 x 4 S101597 Gas valve VK4115vb1012 x 4 S101510 Gas valve GB-ND 057 XP x5 S54766 Venturi x 5 S57488 Venturi x 5 S101595 Venturi VMS 45900450-010 x6 S59215 Gas valve-venturi gasket (x5) x x 7 S57827 Gas valve unit flange x8 S57828 268x22x25 O-ring (x5) x9 S101631 Diaphragm x10 7616249 Flue gas sensor cap (5x) x x x11 S56155 238x177x2 gasket (x20) x x x12 95760050 C HC M4-12 88 ZN3 screw x x x13 S48512 M5-10 screw (x10) x x x14 S101590 Silencer retaining clip x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 49

1223 Hydraulic circuit

Fig43

MW-6000745-01

1

14

6

9

11

8

12

5

37

9

10

2

4

13

Tab29Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7680598 Complete flow pipe x 1 7670807 Complete flow pipe x x2 7672557 Complete return pipe x x x3 7674076 Complete gas pipe x 3 7680434 Complete gas pipe x 3 7670720 Complete gas pipe x4 7698560 HUBA G38 pressure gauge x x x5 94994712 PVC pipe diameter 16x12 x x x6 7699357 Water deflector diameter 100 mm x x x7 94902073 Drain valve 12 x x x8 94918138 Air vent x x x9 95013064 44x32x2 mm green gasket x x x10 95013060 24x17x2 mm green gasket x x 10 95013062 30x21x12 mm green gasket x11 7692329 Condensate hose x x x13 7706103 Assembled siphon height 160 mm x 13 7706038 Assembled siphon height 250 mm x x14 7103731 Condensate drain pan gasket x x x

12 Spare parts

50 Gas 120 ACE 7717202 - v03 - 24062019

1224 Boiler body

Fig44

MW-6000746-01

2

2

1

6

3

34

5

4

Tab30Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7686377 Assembled frame x 1 7686139 Assembled frame x x2 7679958 117x34 handle diameter 65 mm x x x3 7676037 Wheel x x x4 7688301 Frame lateral gasket x 4 7688008 Frame lateral gasket x x5 7688353 Front panel gasket x 5 7688007 Front panel gasket x x6 7693874 R4-05 front panel lock x x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 51

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

E toimistoestsystemsfi

Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 43: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

8 Decommissioning

81 Decommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

To switch off the boiler temporarily or permanently proceed as follows

1 Switch the boiler off2 Cut the electrical power to the boiler3 Close the gas valve on the boiler4 Drain the central heating system or ensure frost protection5 Close the door of the boiler to prevent air circulating inside it6 Remove the pipe connecting the boiler to the chimney and close the

nozzle with a plug

82 Recommissioning procedure

CautionOnly qualified professionals are authorised to carry out maintenance work on the boiler and the heating system

Should it prove necessary to carry out the recommissioning of the boiler proceed as follows

1 Re-establish electrical power to the boiler2 Fit and check the flue gas pipe3 Fill the siphon with water4 Fill the central heating system5 Open the boiler gas valve6 Start up the boiler

8 Decommissioning

7717202 - v03 - 24062019 Gas 120 ACE 43

9 Disposal and recyclingCautionOnly qualified professionals are permitted to remove and dispose of the boiler in accordance with local and national regulations

If you need to remove the boiler proceed as follows

1 Switch off the boiler2 Cut the power supply to the boiler3 Close the main gas valve4 Close the water mains5 Close the gas valve on the boiler6 Drain the installation7 Remove the airflue gas pipes8 Disconnect all pipes9 Dismantle the boiler

Fig40

MW-3000179-03

9 Disposal and recycling

44 Gas 120 ACE 7717202 - v03 - 24062019

10 Environmental

101 Energy savings

Energy-saving advice

Do not block ventilation outletsDo not cover the radiators Do not hang curtains in front of the radiatorsInstall reflective panels behind the radiators to prevent heat lossesInsulate the pipes in rooms that are not heated (cellars and lofts)Close the radiators in rooms not in useDo not run hot (or cold) water pointlesslyInstall an energy-saving shower head which can save up to 40 energyTake showers rather than baths A bath consumes twice as much water and energy

102 Room thermostat and settings

Various models of room thermostat are available The type of thermostat used and the parameter selected impact total energy consumption

A modulating regulator which may be combined with thermostatic valves is eco-friendly in terms of energy and offers an excellent level of comfort This combination allows you to set the temperature separately for each room However do not install thermostatic radiator valves in the room in which the room thermostat is locatedComplete opening and closing of the thermostatic radiator valves causes undesirable variations in temperature Therefore these must be openedclosed progressivelySet the room thermostat to a temperature of approximately 20degC to reduce heating costs and energy consumptionLower the thermostat setting to approximately 16degC at night or when you are not at home This reduces heating costs and energy consumptionLower the thermostat setting well before airing the roomsSet the water temperature to a lower level in summer than in winter (eg 60degC and 80degC respectively) when an ONOFF thermostatis usedWhen clock thermostats and programmable thermostats are to be set do not forget to take any holidays and days when no one is at home into account

10 Environmental

7717202 - v03 - 24062019 Gas 120 ACE 45

11 Warranty

111 General

We would like to thank you for buying one of our appliances and for your trust in our productIn order to ensure continued safe and efficient operation we recommend that the product is regularly inspected and maintainedYour installer and our service department can assist with this

112 Terms of warranty

The following provisions do not affect the application in favour of the buyer of the legal provisions with regard to hidden defects that are applicable in the buyers countryThis appliance comes with a warranty that covers all manufacturing faults the warranty period will commence on the date of purchase stated on the installers invoiceThe warranty period is stated in our price listAs a manufacturer we can by no means be held liable if the appliance is used incorrectly is poorly maintained or not maintained at all or is not installed correctly (it is your responsibility to ensure that installation is carried out by a qualified installer)In particular we cannot be held liable for material damage intangible losses or physical injury resulting from an installation that does not comply with

Legal or regulatory requirements or provisions laid down by the local authoritiesNational or local regulations and special provisions relating to the installationOur manuals and installation instructions in particular in terms of regular maintenance of the appliances

Our warranty is limited to the replacement or repair of the parts found to be defective by our technical services team excluding labour transfer and transport costsOur warranty does not cover replacement or repair costs for parts that may become defective due to normal wear incorrect usage the intervention of unqualified third parties inadequate or insufficient supervision or maintenance a mains supply that is not appropriate or the use of unsuitable or poor quality fuelSmaller parts such as motors pumps electrical valves etc are guaranteed only if these parts have never been dismantledThe rights established in European Directive 9944EEC implemented by legal decree No 24 of 2 February 2002 and published in Official Journal No 57 of 8 March 2002 remain in force

11 Warranty

46 Gas 120 ACE 7717202 - v03 - 24062019

12 Spare parts

121 General

If inspection or maintenance work bring to light the need to replace a component in the boilerProvide the reference number given in the spare parts list when ordering a spare part

CautionOnly genuine spare parts may be used

122 Spare parts lists

1221 Exchanger

Fig41

MW-6000743-01

811x

7

7

4

2

16

3

10

119

65

1

13

12

18

14

19

15

18

17

Tab27

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

1 7699615 Complete exchanger x 1 7699614 Complete exchanger x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 47

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

2 S101564 Exchanger front plate x x x3 S54731 Exchanger inspection hatch insulation x x x4 S57241 Exchanger inspection hatch gasket x x x5 S100052 M4x10 self-locking screw (x20) x x x6 S54754 FURQ65 burner x 6 S57477 FURQ85 burner x x7 7623837 Set of 10 k NTC sensors x x x8 S54755 M6 nut (x20) x x x9 7659755 M4x10 screw (x10) x x x10 S53489 Electrode gasket (x10) x x x11 7692359 Ignition electrode x x x12 7631936 Flue gas flow pipe diameter 100 mm x x x13 7624643 NTC 2x20 k flue gas sensor with gasket x x x14 7624619 Ignition transformer x x x15 S56987 ZP M6x16 screw (x10) x x x16 7616253 Valve with support x x x17 7680596 Exchanger bracket x 17 7673616 Exchanger bracket x x18 7701752 Gasket diameter 100 mm (x5) x x x19 7632708 Earth electric clip (x2) x x x

1222 Gas circuit

Fig42

MW-6000744-01

3

2

5

6

9

4

8

10

7

12

11

1

14

13

13

12 Spare parts

48 Gas 120 ACE 7717202 - v03 - 24062019

Tab28Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 S101543 Silencer x 1 S101520 Silencer x 1 S101578 Silencer x2 S54777 Venturi gasket (x5) x 2 S59215 Gas valve-venturi gasket (x5) x 2 S101593 Gaskets (kit) x3 S101726 Fan RG 1481200-3633 x x 3 S100036 Fan RG 148 1200-3633-010202 x4 S101596 Gas valve VK4115v1386 x 4 S101597 Gas valve VK4115vb1012 x 4 S101510 Gas valve GB-ND 057 XP x5 S54766 Venturi x 5 S57488 Venturi x 5 S101595 Venturi VMS 45900450-010 x6 S59215 Gas valve-venturi gasket (x5) x x 7 S57827 Gas valve unit flange x8 S57828 268x22x25 O-ring (x5) x9 S101631 Diaphragm x10 7616249 Flue gas sensor cap (5x) x x x11 S56155 238x177x2 gasket (x20) x x x12 95760050 C HC M4-12 88 ZN3 screw x x x13 S48512 M5-10 screw (x10) x x x14 S101590 Silencer retaining clip x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 49

1223 Hydraulic circuit

Fig43

MW-6000745-01

1

14

6

9

11

8

12

5

37

9

10

2

4

13

Tab29Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7680598 Complete flow pipe x 1 7670807 Complete flow pipe x x2 7672557 Complete return pipe x x x3 7674076 Complete gas pipe x 3 7680434 Complete gas pipe x 3 7670720 Complete gas pipe x4 7698560 HUBA G38 pressure gauge x x x5 94994712 PVC pipe diameter 16x12 x x x6 7699357 Water deflector diameter 100 mm x x x7 94902073 Drain valve 12 x x x8 94918138 Air vent x x x9 95013064 44x32x2 mm green gasket x x x10 95013060 24x17x2 mm green gasket x x 10 95013062 30x21x12 mm green gasket x11 7692329 Condensate hose x x x13 7706103 Assembled siphon height 160 mm x 13 7706038 Assembled siphon height 250 mm x x14 7103731 Condensate drain pan gasket x x x

12 Spare parts

50 Gas 120 ACE 7717202 - v03 - 24062019

1224 Boiler body

Fig44

MW-6000746-01

2

2

1

6

3

34

5

4

Tab30Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7686377 Assembled frame x 1 7686139 Assembled frame x x2 7679958 117x34 handle diameter 65 mm x x x3 7676037 Wheel x x x4 7688301 Frame lateral gasket x 4 7688008 Frame lateral gasket x x5 7688353 Front panel gasket x 5 7688007 Front panel gasket x x6 7693874 R4-05 front panel lock x x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 51

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

E toimistoestsystemsfi

Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 44: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

9 Disposal and recyclingCautionOnly qualified professionals are permitted to remove and dispose of the boiler in accordance with local and national regulations

If you need to remove the boiler proceed as follows

1 Switch off the boiler2 Cut the power supply to the boiler3 Close the main gas valve4 Close the water mains5 Close the gas valve on the boiler6 Drain the installation7 Remove the airflue gas pipes8 Disconnect all pipes9 Dismantle the boiler

Fig40

MW-3000179-03

9 Disposal and recycling

44 Gas 120 ACE 7717202 - v03 - 24062019

10 Environmental

101 Energy savings

Energy-saving advice

Do not block ventilation outletsDo not cover the radiators Do not hang curtains in front of the radiatorsInstall reflective panels behind the radiators to prevent heat lossesInsulate the pipes in rooms that are not heated (cellars and lofts)Close the radiators in rooms not in useDo not run hot (or cold) water pointlesslyInstall an energy-saving shower head which can save up to 40 energyTake showers rather than baths A bath consumes twice as much water and energy

102 Room thermostat and settings

Various models of room thermostat are available The type of thermostat used and the parameter selected impact total energy consumption

A modulating regulator which may be combined with thermostatic valves is eco-friendly in terms of energy and offers an excellent level of comfort This combination allows you to set the temperature separately for each room However do not install thermostatic radiator valves in the room in which the room thermostat is locatedComplete opening and closing of the thermostatic radiator valves causes undesirable variations in temperature Therefore these must be openedclosed progressivelySet the room thermostat to a temperature of approximately 20degC to reduce heating costs and energy consumptionLower the thermostat setting to approximately 16degC at night or when you are not at home This reduces heating costs and energy consumptionLower the thermostat setting well before airing the roomsSet the water temperature to a lower level in summer than in winter (eg 60degC and 80degC respectively) when an ONOFF thermostatis usedWhen clock thermostats and programmable thermostats are to be set do not forget to take any holidays and days when no one is at home into account

10 Environmental

7717202 - v03 - 24062019 Gas 120 ACE 45

11 Warranty

111 General

We would like to thank you for buying one of our appliances and for your trust in our productIn order to ensure continued safe and efficient operation we recommend that the product is regularly inspected and maintainedYour installer and our service department can assist with this

112 Terms of warranty

The following provisions do not affect the application in favour of the buyer of the legal provisions with regard to hidden defects that are applicable in the buyers countryThis appliance comes with a warranty that covers all manufacturing faults the warranty period will commence on the date of purchase stated on the installers invoiceThe warranty period is stated in our price listAs a manufacturer we can by no means be held liable if the appliance is used incorrectly is poorly maintained or not maintained at all or is not installed correctly (it is your responsibility to ensure that installation is carried out by a qualified installer)In particular we cannot be held liable for material damage intangible losses or physical injury resulting from an installation that does not comply with

Legal or regulatory requirements or provisions laid down by the local authoritiesNational or local regulations and special provisions relating to the installationOur manuals and installation instructions in particular in terms of regular maintenance of the appliances

Our warranty is limited to the replacement or repair of the parts found to be defective by our technical services team excluding labour transfer and transport costsOur warranty does not cover replacement or repair costs for parts that may become defective due to normal wear incorrect usage the intervention of unqualified third parties inadequate or insufficient supervision or maintenance a mains supply that is not appropriate or the use of unsuitable or poor quality fuelSmaller parts such as motors pumps electrical valves etc are guaranteed only if these parts have never been dismantledThe rights established in European Directive 9944EEC implemented by legal decree No 24 of 2 February 2002 and published in Official Journal No 57 of 8 March 2002 remain in force

11 Warranty

46 Gas 120 ACE 7717202 - v03 - 24062019

12 Spare parts

121 General

If inspection or maintenance work bring to light the need to replace a component in the boilerProvide the reference number given in the spare parts list when ordering a spare part

CautionOnly genuine spare parts may be used

122 Spare parts lists

1221 Exchanger

Fig41

MW-6000743-01

811x

7

7

4

2

16

3

10

119

65

1

13

12

18

14

19

15

18

17

Tab27

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

1 7699615 Complete exchanger x 1 7699614 Complete exchanger x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 47

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

2 S101564 Exchanger front plate x x x3 S54731 Exchanger inspection hatch insulation x x x4 S57241 Exchanger inspection hatch gasket x x x5 S100052 M4x10 self-locking screw (x20) x x x6 S54754 FURQ65 burner x 6 S57477 FURQ85 burner x x7 7623837 Set of 10 k NTC sensors x x x8 S54755 M6 nut (x20) x x x9 7659755 M4x10 screw (x10) x x x10 S53489 Electrode gasket (x10) x x x11 7692359 Ignition electrode x x x12 7631936 Flue gas flow pipe diameter 100 mm x x x13 7624643 NTC 2x20 k flue gas sensor with gasket x x x14 7624619 Ignition transformer x x x15 S56987 ZP M6x16 screw (x10) x x x16 7616253 Valve with support x x x17 7680596 Exchanger bracket x 17 7673616 Exchanger bracket x x18 7701752 Gasket diameter 100 mm (x5) x x x19 7632708 Earth electric clip (x2) x x x

1222 Gas circuit

Fig42

MW-6000744-01

3

2

5

6

9

4

8

10

7

12

11

1

14

13

13

12 Spare parts

48 Gas 120 ACE 7717202 - v03 - 24062019

Tab28Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 S101543 Silencer x 1 S101520 Silencer x 1 S101578 Silencer x2 S54777 Venturi gasket (x5) x 2 S59215 Gas valve-venturi gasket (x5) x 2 S101593 Gaskets (kit) x3 S101726 Fan RG 1481200-3633 x x 3 S100036 Fan RG 148 1200-3633-010202 x4 S101596 Gas valve VK4115v1386 x 4 S101597 Gas valve VK4115vb1012 x 4 S101510 Gas valve GB-ND 057 XP x5 S54766 Venturi x 5 S57488 Venturi x 5 S101595 Venturi VMS 45900450-010 x6 S59215 Gas valve-venturi gasket (x5) x x 7 S57827 Gas valve unit flange x8 S57828 268x22x25 O-ring (x5) x9 S101631 Diaphragm x10 7616249 Flue gas sensor cap (5x) x x x11 S56155 238x177x2 gasket (x20) x x x12 95760050 C HC M4-12 88 ZN3 screw x x x13 S48512 M5-10 screw (x10) x x x14 S101590 Silencer retaining clip x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 49

1223 Hydraulic circuit

Fig43

MW-6000745-01

1

14

6

9

11

8

12

5

37

9

10

2

4

13

Tab29Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7680598 Complete flow pipe x 1 7670807 Complete flow pipe x x2 7672557 Complete return pipe x x x3 7674076 Complete gas pipe x 3 7680434 Complete gas pipe x 3 7670720 Complete gas pipe x4 7698560 HUBA G38 pressure gauge x x x5 94994712 PVC pipe diameter 16x12 x x x6 7699357 Water deflector diameter 100 mm x x x7 94902073 Drain valve 12 x x x8 94918138 Air vent x x x9 95013064 44x32x2 mm green gasket x x x10 95013060 24x17x2 mm green gasket x x 10 95013062 30x21x12 mm green gasket x11 7692329 Condensate hose x x x13 7706103 Assembled siphon height 160 mm x 13 7706038 Assembled siphon height 250 mm x x14 7103731 Condensate drain pan gasket x x x

12 Spare parts

50 Gas 120 ACE 7717202 - v03 - 24062019

1224 Boiler body

Fig44

MW-6000746-01

2

2

1

6

3

34

5

4

Tab30Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7686377 Assembled frame x 1 7686139 Assembled frame x x2 7679958 117x34 handle diameter 65 mm x x x3 7676037 Wheel x x x4 7688301 Frame lateral gasket x 4 7688008 Frame lateral gasket x x5 7688353 Front panel gasket x 5 7688007 Front panel gasket x x6 7693874 R4-05 front panel lock x x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 51

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

E toimistoestsystemsfi

Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 45: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

10 Environmental

101 Energy savings

Energy-saving advice

Do not block ventilation outletsDo not cover the radiators Do not hang curtains in front of the radiatorsInstall reflective panels behind the radiators to prevent heat lossesInsulate the pipes in rooms that are not heated (cellars and lofts)Close the radiators in rooms not in useDo not run hot (or cold) water pointlesslyInstall an energy-saving shower head which can save up to 40 energyTake showers rather than baths A bath consumes twice as much water and energy

102 Room thermostat and settings

Various models of room thermostat are available The type of thermostat used and the parameter selected impact total energy consumption

A modulating regulator which may be combined with thermostatic valves is eco-friendly in terms of energy and offers an excellent level of comfort This combination allows you to set the temperature separately for each room However do not install thermostatic radiator valves in the room in which the room thermostat is locatedComplete opening and closing of the thermostatic radiator valves causes undesirable variations in temperature Therefore these must be openedclosed progressivelySet the room thermostat to a temperature of approximately 20degC to reduce heating costs and energy consumptionLower the thermostat setting to approximately 16degC at night or when you are not at home This reduces heating costs and energy consumptionLower the thermostat setting well before airing the roomsSet the water temperature to a lower level in summer than in winter (eg 60degC and 80degC respectively) when an ONOFF thermostatis usedWhen clock thermostats and programmable thermostats are to be set do not forget to take any holidays and days when no one is at home into account

10 Environmental

7717202 - v03 - 24062019 Gas 120 ACE 45

11 Warranty

111 General

We would like to thank you for buying one of our appliances and for your trust in our productIn order to ensure continued safe and efficient operation we recommend that the product is regularly inspected and maintainedYour installer and our service department can assist with this

112 Terms of warranty

The following provisions do not affect the application in favour of the buyer of the legal provisions with regard to hidden defects that are applicable in the buyers countryThis appliance comes with a warranty that covers all manufacturing faults the warranty period will commence on the date of purchase stated on the installers invoiceThe warranty period is stated in our price listAs a manufacturer we can by no means be held liable if the appliance is used incorrectly is poorly maintained or not maintained at all or is not installed correctly (it is your responsibility to ensure that installation is carried out by a qualified installer)In particular we cannot be held liable for material damage intangible losses or physical injury resulting from an installation that does not comply with

Legal or regulatory requirements or provisions laid down by the local authoritiesNational or local regulations and special provisions relating to the installationOur manuals and installation instructions in particular in terms of regular maintenance of the appliances

Our warranty is limited to the replacement or repair of the parts found to be defective by our technical services team excluding labour transfer and transport costsOur warranty does not cover replacement or repair costs for parts that may become defective due to normal wear incorrect usage the intervention of unqualified third parties inadequate or insufficient supervision or maintenance a mains supply that is not appropriate or the use of unsuitable or poor quality fuelSmaller parts such as motors pumps electrical valves etc are guaranteed only if these parts have never been dismantledThe rights established in European Directive 9944EEC implemented by legal decree No 24 of 2 February 2002 and published in Official Journal No 57 of 8 March 2002 remain in force

11 Warranty

46 Gas 120 ACE 7717202 - v03 - 24062019

12 Spare parts

121 General

If inspection or maintenance work bring to light the need to replace a component in the boilerProvide the reference number given in the spare parts list when ordering a spare part

CautionOnly genuine spare parts may be used

122 Spare parts lists

1221 Exchanger

Fig41

MW-6000743-01

811x

7

7

4

2

16

3

10

119

65

1

13

12

18

14

19

15

18

17

Tab27

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

1 7699615 Complete exchanger x 1 7699614 Complete exchanger x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 47

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

2 S101564 Exchanger front plate x x x3 S54731 Exchanger inspection hatch insulation x x x4 S57241 Exchanger inspection hatch gasket x x x5 S100052 M4x10 self-locking screw (x20) x x x6 S54754 FURQ65 burner x 6 S57477 FURQ85 burner x x7 7623837 Set of 10 k NTC sensors x x x8 S54755 M6 nut (x20) x x x9 7659755 M4x10 screw (x10) x x x10 S53489 Electrode gasket (x10) x x x11 7692359 Ignition electrode x x x12 7631936 Flue gas flow pipe diameter 100 mm x x x13 7624643 NTC 2x20 k flue gas sensor with gasket x x x14 7624619 Ignition transformer x x x15 S56987 ZP M6x16 screw (x10) x x x16 7616253 Valve with support x x x17 7680596 Exchanger bracket x 17 7673616 Exchanger bracket x x18 7701752 Gasket diameter 100 mm (x5) x x x19 7632708 Earth electric clip (x2) x x x

1222 Gas circuit

Fig42

MW-6000744-01

3

2

5

6

9

4

8

10

7

12

11

1

14

13

13

12 Spare parts

48 Gas 120 ACE 7717202 - v03 - 24062019

Tab28Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 S101543 Silencer x 1 S101520 Silencer x 1 S101578 Silencer x2 S54777 Venturi gasket (x5) x 2 S59215 Gas valve-venturi gasket (x5) x 2 S101593 Gaskets (kit) x3 S101726 Fan RG 1481200-3633 x x 3 S100036 Fan RG 148 1200-3633-010202 x4 S101596 Gas valve VK4115v1386 x 4 S101597 Gas valve VK4115vb1012 x 4 S101510 Gas valve GB-ND 057 XP x5 S54766 Venturi x 5 S57488 Venturi x 5 S101595 Venturi VMS 45900450-010 x6 S59215 Gas valve-venturi gasket (x5) x x 7 S57827 Gas valve unit flange x8 S57828 268x22x25 O-ring (x5) x9 S101631 Diaphragm x10 7616249 Flue gas sensor cap (5x) x x x11 S56155 238x177x2 gasket (x20) x x x12 95760050 C HC M4-12 88 ZN3 screw x x x13 S48512 M5-10 screw (x10) x x x14 S101590 Silencer retaining clip x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 49

1223 Hydraulic circuit

Fig43

MW-6000745-01

1

14

6

9

11

8

12

5

37

9

10

2

4

13

Tab29Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7680598 Complete flow pipe x 1 7670807 Complete flow pipe x x2 7672557 Complete return pipe x x x3 7674076 Complete gas pipe x 3 7680434 Complete gas pipe x 3 7670720 Complete gas pipe x4 7698560 HUBA G38 pressure gauge x x x5 94994712 PVC pipe diameter 16x12 x x x6 7699357 Water deflector diameter 100 mm x x x7 94902073 Drain valve 12 x x x8 94918138 Air vent x x x9 95013064 44x32x2 mm green gasket x x x10 95013060 24x17x2 mm green gasket x x 10 95013062 30x21x12 mm green gasket x11 7692329 Condensate hose x x x13 7706103 Assembled siphon height 160 mm x 13 7706038 Assembled siphon height 250 mm x x14 7103731 Condensate drain pan gasket x x x

12 Spare parts

50 Gas 120 ACE 7717202 - v03 - 24062019

1224 Boiler body

Fig44

MW-6000746-01

2

2

1

6

3

34

5

4

Tab30Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7686377 Assembled frame x 1 7686139 Assembled frame x x2 7679958 117x34 handle diameter 65 mm x x x3 7676037 Wheel x x x4 7688301 Frame lateral gasket x 4 7688008 Frame lateral gasket x x5 7688353 Front panel gasket x 5 7688007 Front panel gasket x x6 7693874 R4-05 front panel lock x x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 51

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

E toimistoestsystemsfi

Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 46: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

11 Warranty

111 General

We would like to thank you for buying one of our appliances and for your trust in our productIn order to ensure continued safe and efficient operation we recommend that the product is regularly inspected and maintainedYour installer and our service department can assist with this

112 Terms of warranty

The following provisions do not affect the application in favour of the buyer of the legal provisions with regard to hidden defects that are applicable in the buyers countryThis appliance comes with a warranty that covers all manufacturing faults the warranty period will commence on the date of purchase stated on the installers invoiceThe warranty period is stated in our price listAs a manufacturer we can by no means be held liable if the appliance is used incorrectly is poorly maintained or not maintained at all or is not installed correctly (it is your responsibility to ensure that installation is carried out by a qualified installer)In particular we cannot be held liable for material damage intangible losses or physical injury resulting from an installation that does not comply with

Legal or regulatory requirements or provisions laid down by the local authoritiesNational or local regulations and special provisions relating to the installationOur manuals and installation instructions in particular in terms of regular maintenance of the appliances

Our warranty is limited to the replacement or repair of the parts found to be defective by our technical services team excluding labour transfer and transport costsOur warranty does not cover replacement or repair costs for parts that may become defective due to normal wear incorrect usage the intervention of unqualified third parties inadequate or insufficient supervision or maintenance a mains supply that is not appropriate or the use of unsuitable or poor quality fuelSmaller parts such as motors pumps electrical valves etc are guaranteed only if these parts have never been dismantledThe rights established in European Directive 9944EEC implemented by legal decree No 24 of 2 February 2002 and published in Official Journal No 57 of 8 March 2002 remain in force

11 Warranty

46 Gas 120 ACE 7717202 - v03 - 24062019

12 Spare parts

121 General

If inspection or maintenance work bring to light the need to replace a component in the boilerProvide the reference number given in the spare parts list when ordering a spare part

CautionOnly genuine spare parts may be used

122 Spare parts lists

1221 Exchanger

Fig41

MW-6000743-01

811x

7

7

4

2

16

3

10

119

65

1

13

12

18

14

19

15

18

17

Tab27

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

1 7699615 Complete exchanger x 1 7699614 Complete exchanger x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 47

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

2 S101564 Exchanger front plate x x x3 S54731 Exchanger inspection hatch insulation x x x4 S57241 Exchanger inspection hatch gasket x x x5 S100052 M4x10 self-locking screw (x20) x x x6 S54754 FURQ65 burner x 6 S57477 FURQ85 burner x x7 7623837 Set of 10 k NTC sensors x x x8 S54755 M6 nut (x20) x x x9 7659755 M4x10 screw (x10) x x x10 S53489 Electrode gasket (x10) x x x11 7692359 Ignition electrode x x x12 7631936 Flue gas flow pipe diameter 100 mm x x x13 7624643 NTC 2x20 k flue gas sensor with gasket x x x14 7624619 Ignition transformer x x x15 S56987 ZP M6x16 screw (x10) x x x16 7616253 Valve with support x x x17 7680596 Exchanger bracket x 17 7673616 Exchanger bracket x x18 7701752 Gasket diameter 100 mm (x5) x x x19 7632708 Earth electric clip (x2) x x x

1222 Gas circuit

Fig42

MW-6000744-01

3

2

5

6

9

4

8

10

7

12

11

1

14

13

13

12 Spare parts

48 Gas 120 ACE 7717202 - v03 - 24062019

Tab28Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 S101543 Silencer x 1 S101520 Silencer x 1 S101578 Silencer x2 S54777 Venturi gasket (x5) x 2 S59215 Gas valve-venturi gasket (x5) x 2 S101593 Gaskets (kit) x3 S101726 Fan RG 1481200-3633 x x 3 S100036 Fan RG 148 1200-3633-010202 x4 S101596 Gas valve VK4115v1386 x 4 S101597 Gas valve VK4115vb1012 x 4 S101510 Gas valve GB-ND 057 XP x5 S54766 Venturi x 5 S57488 Venturi x 5 S101595 Venturi VMS 45900450-010 x6 S59215 Gas valve-venturi gasket (x5) x x 7 S57827 Gas valve unit flange x8 S57828 268x22x25 O-ring (x5) x9 S101631 Diaphragm x10 7616249 Flue gas sensor cap (5x) x x x11 S56155 238x177x2 gasket (x20) x x x12 95760050 C HC M4-12 88 ZN3 screw x x x13 S48512 M5-10 screw (x10) x x x14 S101590 Silencer retaining clip x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 49

1223 Hydraulic circuit

Fig43

MW-6000745-01

1

14

6

9

11

8

12

5

37

9

10

2

4

13

Tab29Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7680598 Complete flow pipe x 1 7670807 Complete flow pipe x x2 7672557 Complete return pipe x x x3 7674076 Complete gas pipe x 3 7680434 Complete gas pipe x 3 7670720 Complete gas pipe x4 7698560 HUBA G38 pressure gauge x x x5 94994712 PVC pipe diameter 16x12 x x x6 7699357 Water deflector diameter 100 mm x x x7 94902073 Drain valve 12 x x x8 94918138 Air vent x x x9 95013064 44x32x2 mm green gasket x x x10 95013060 24x17x2 mm green gasket x x 10 95013062 30x21x12 mm green gasket x11 7692329 Condensate hose x x x13 7706103 Assembled siphon height 160 mm x 13 7706038 Assembled siphon height 250 mm x x14 7103731 Condensate drain pan gasket x x x

12 Spare parts

50 Gas 120 ACE 7717202 - v03 - 24062019

1224 Boiler body

Fig44

MW-6000746-01

2

2

1

6

3

34

5

4

Tab30Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7686377 Assembled frame x 1 7686139 Assembled frame x x2 7679958 117x34 handle diameter 65 mm x x x3 7676037 Wheel x x x4 7688301 Frame lateral gasket x 4 7688008 Frame lateral gasket x x5 7688353 Front panel gasket x 5 7688007 Front panel gasket x x6 7693874 R4-05 front panel lock x x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 51

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

E toimistoestsystemsfi

Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 47: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

12 Spare parts

121 General

If inspection or maintenance work bring to light the need to replace a component in the boilerProvide the reference number given in the spare parts list when ordering a spare part

CautionOnly genuine spare parts may be used

122 Spare parts lists

1221 Exchanger

Fig41

MW-6000743-01

811x

7

7

4

2

16

3

10

119

65

1

13

12

18

14

19

15

18

17

Tab27

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

1 7699615 Complete exchanger x 1 7699614 Complete exchanger x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 47

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

2 S101564 Exchanger front plate x x x3 S54731 Exchanger inspection hatch insulation x x x4 S57241 Exchanger inspection hatch gasket x x x5 S100052 M4x10 self-locking screw (x20) x x x6 S54754 FURQ65 burner x 6 S57477 FURQ85 burner x x7 7623837 Set of 10 k NTC sensors x x x8 S54755 M6 nut (x20) x x x9 7659755 M4x10 screw (x10) x x x10 S53489 Electrode gasket (x10) x x x11 7692359 Ignition electrode x x x12 7631936 Flue gas flow pipe diameter 100 mm x x x13 7624643 NTC 2x20 k flue gas sensor with gasket x x x14 7624619 Ignition transformer x x x15 S56987 ZP M6x16 screw (x10) x x x16 7616253 Valve with support x x x17 7680596 Exchanger bracket x 17 7673616 Exchanger bracket x x18 7701752 Gasket diameter 100 mm (x5) x x x19 7632708 Earth electric clip (x2) x x x

1222 Gas circuit

Fig42

MW-6000744-01

3

2

5

6

9

4

8

10

7

12

11

1

14

13

13

12 Spare parts

48 Gas 120 ACE 7717202 - v03 - 24062019

Tab28Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 S101543 Silencer x 1 S101520 Silencer x 1 S101578 Silencer x2 S54777 Venturi gasket (x5) x 2 S59215 Gas valve-venturi gasket (x5) x 2 S101593 Gaskets (kit) x3 S101726 Fan RG 1481200-3633 x x 3 S100036 Fan RG 148 1200-3633-010202 x4 S101596 Gas valve VK4115v1386 x 4 S101597 Gas valve VK4115vb1012 x 4 S101510 Gas valve GB-ND 057 XP x5 S54766 Venturi x 5 S57488 Venturi x 5 S101595 Venturi VMS 45900450-010 x6 S59215 Gas valve-venturi gasket (x5) x x 7 S57827 Gas valve unit flange x8 S57828 268x22x25 O-ring (x5) x9 S101631 Diaphragm x10 7616249 Flue gas sensor cap (5x) x x x11 S56155 238x177x2 gasket (x20) x x x12 95760050 C HC M4-12 88 ZN3 screw x x x13 S48512 M5-10 screw (x10) x x x14 S101590 Silencer retaining clip x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 49

1223 Hydraulic circuit

Fig43

MW-6000745-01

1

14

6

9

11

8

12

5

37

9

10

2

4

13

Tab29Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7680598 Complete flow pipe x 1 7670807 Complete flow pipe x x2 7672557 Complete return pipe x x x3 7674076 Complete gas pipe x 3 7680434 Complete gas pipe x 3 7670720 Complete gas pipe x4 7698560 HUBA G38 pressure gauge x x x5 94994712 PVC pipe diameter 16x12 x x x6 7699357 Water deflector diameter 100 mm x x x7 94902073 Drain valve 12 x x x8 94918138 Air vent x x x9 95013064 44x32x2 mm green gasket x x x10 95013060 24x17x2 mm green gasket x x 10 95013062 30x21x12 mm green gasket x11 7692329 Condensate hose x x x13 7706103 Assembled siphon height 160 mm x 13 7706038 Assembled siphon height 250 mm x x14 7103731 Condensate drain pan gasket x x x

12 Spare parts

50 Gas 120 ACE 7717202 - v03 - 24062019

1224 Boiler body

Fig44

MW-6000746-01

2

2

1

6

3

34

5

4

Tab30Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7686377 Assembled frame x 1 7686139 Assembled frame x x2 7679958 117x34 handle diameter 65 mm x x x3 7676037 Wheel x x x4 7688301 Frame lateral gasket x 4 7688008 Frame lateral gasket x x5 7688353 Front panel gasket x 5 7688007 Front panel gasket x x6 7693874 R4-05 front panel lock x x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 51

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

E toimistoestsystemsfi

Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 48: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

Markers Reference Description Gas 120 ACE - 65

Gas 120 ACE - 90

Gas 120 ACE - 115

2 S101564 Exchanger front plate x x x3 S54731 Exchanger inspection hatch insulation x x x4 S57241 Exchanger inspection hatch gasket x x x5 S100052 M4x10 self-locking screw (x20) x x x6 S54754 FURQ65 burner x 6 S57477 FURQ85 burner x x7 7623837 Set of 10 k NTC sensors x x x8 S54755 M6 nut (x20) x x x9 7659755 M4x10 screw (x10) x x x10 S53489 Electrode gasket (x10) x x x11 7692359 Ignition electrode x x x12 7631936 Flue gas flow pipe diameter 100 mm x x x13 7624643 NTC 2x20 k flue gas sensor with gasket x x x14 7624619 Ignition transformer x x x15 S56987 ZP M6x16 screw (x10) x x x16 7616253 Valve with support x x x17 7680596 Exchanger bracket x 17 7673616 Exchanger bracket x x18 7701752 Gasket diameter 100 mm (x5) x x x19 7632708 Earth electric clip (x2) x x x

1222 Gas circuit

Fig42

MW-6000744-01

3

2

5

6

9

4

8

10

7

12

11

1

14

13

13

12 Spare parts

48 Gas 120 ACE 7717202 - v03 - 24062019

Tab28Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 S101543 Silencer x 1 S101520 Silencer x 1 S101578 Silencer x2 S54777 Venturi gasket (x5) x 2 S59215 Gas valve-venturi gasket (x5) x 2 S101593 Gaskets (kit) x3 S101726 Fan RG 1481200-3633 x x 3 S100036 Fan RG 148 1200-3633-010202 x4 S101596 Gas valve VK4115v1386 x 4 S101597 Gas valve VK4115vb1012 x 4 S101510 Gas valve GB-ND 057 XP x5 S54766 Venturi x 5 S57488 Venturi x 5 S101595 Venturi VMS 45900450-010 x6 S59215 Gas valve-venturi gasket (x5) x x 7 S57827 Gas valve unit flange x8 S57828 268x22x25 O-ring (x5) x9 S101631 Diaphragm x10 7616249 Flue gas sensor cap (5x) x x x11 S56155 238x177x2 gasket (x20) x x x12 95760050 C HC M4-12 88 ZN3 screw x x x13 S48512 M5-10 screw (x10) x x x14 S101590 Silencer retaining clip x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 49

1223 Hydraulic circuit

Fig43

MW-6000745-01

1

14

6

9

11

8

12

5

37

9

10

2

4

13

Tab29Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7680598 Complete flow pipe x 1 7670807 Complete flow pipe x x2 7672557 Complete return pipe x x x3 7674076 Complete gas pipe x 3 7680434 Complete gas pipe x 3 7670720 Complete gas pipe x4 7698560 HUBA G38 pressure gauge x x x5 94994712 PVC pipe diameter 16x12 x x x6 7699357 Water deflector diameter 100 mm x x x7 94902073 Drain valve 12 x x x8 94918138 Air vent x x x9 95013064 44x32x2 mm green gasket x x x10 95013060 24x17x2 mm green gasket x x 10 95013062 30x21x12 mm green gasket x11 7692329 Condensate hose x x x13 7706103 Assembled siphon height 160 mm x 13 7706038 Assembled siphon height 250 mm x x14 7103731 Condensate drain pan gasket x x x

12 Spare parts

50 Gas 120 ACE 7717202 - v03 - 24062019

1224 Boiler body

Fig44

MW-6000746-01

2

2

1

6

3

34

5

4

Tab30Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7686377 Assembled frame x 1 7686139 Assembled frame x x2 7679958 117x34 handle diameter 65 mm x x x3 7676037 Wheel x x x4 7688301 Frame lateral gasket x 4 7688008 Frame lateral gasket x x5 7688353 Front panel gasket x 5 7688007 Front panel gasket x x6 7693874 R4-05 front panel lock x x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 51

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

E toimistoestsystemsfi

Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 49: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

Tab28Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 S101543 Silencer x 1 S101520 Silencer x 1 S101578 Silencer x2 S54777 Venturi gasket (x5) x 2 S59215 Gas valve-venturi gasket (x5) x 2 S101593 Gaskets (kit) x3 S101726 Fan RG 1481200-3633 x x 3 S100036 Fan RG 148 1200-3633-010202 x4 S101596 Gas valve VK4115v1386 x 4 S101597 Gas valve VK4115vb1012 x 4 S101510 Gas valve GB-ND 057 XP x5 S54766 Venturi x 5 S57488 Venturi x 5 S101595 Venturi VMS 45900450-010 x6 S59215 Gas valve-venturi gasket (x5) x x 7 S57827 Gas valve unit flange x8 S57828 268x22x25 O-ring (x5) x9 S101631 Diaphragm x10 7616249 Flue gas sensor cap (5x) x x x11 S56155 238x177x2 gasket (x20) x x x12 95760050 C HC M4-12 88 ZN3 screw x x x13 S48512 M5-10 screw (x10) x x x14 S101590 Silencer retaining clip x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 49

1223 Hydraulic circuit

Fig43

MW-6000745-01

1

14

6

9

11

8

12

5

37

9

10

2

4

13

Tab29Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7680598 Complete flow pipe x 1 7670807 Complete flow pipe x x2 7672557 Complete return pipe x x x3 7674076 Complete gas pipe x 3 7680434 Complete gas pipe x 3 7670720 Complete gas pipe x4 7698560 HUBA G38 pressure gauge x x x5 94994712 PVC pipe diameter 16x12 x x x6 7699357 Water deflector diameter 100 mm x x x7 94902073 Drain valve 12 x x x8 94918138 Air vent x x x9 95013064 44x32x2 mm green gasket x x x10 95013060 24x17x2 mm green gasket x x 10 95013062 30x21x12 mm green gasket x11 7692329 Condensate hose x x x13 7706103 Assembled siphon height 160 mm x 13 7706038 Assembled siphon height 250 mm x x14 7103731 Condensate drain pan gasket x x x

12 Spare parts

50 Gas 120 ACE 7717202 - v03 - 24062019

1224 Boiler body

Fig44

MW-6000746-01

2

2

1

6

3

34

5

4

Tab30Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7686377 Assembled frame x 1 7686139 Assembled frame x x2 7679958 117x34 handle diameter 65 mm x x x3 7676037 Wheel x x x4 7688301 Frame lateral gasket x 4 7688008 Frame lateral gasket x x5 7688353 Front panel gasket x 5 7688007 Front panel gasket x x6 7693874 R4-05 front panel lock x x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 51

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

E toimistoestsystemsfi

Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 50: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

1223 Hydraulic circuit

Fig43

MW-6000745-01

1

14

6

9

11

8

12

5

37

9

10

2

4

13

Tab29Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7680598 Complete flow pipe x 1 7670807 Complete flow pipe x x2 7672557 Complete return pipe x x x3 7674076 Complete gas pipe x 3 7680434 Complete gas pipe x 3 7670720 Complete gas pipe x4 7698560 HUBA G38 pressure gauge x x x5 94994712 PVC pipe diameter 16x12 x x x6 7699357 Water deflector diameter 100 mm x x x7 94902073 Drain valve 12 x x x8 94918138 Air vent x x x9 95013064 44x32x2 mm green gasket x x x10 95013060 24x17x2 mm green gasket x x 10 95013062 30x21x12 mm green gasket x11 7692329 Condensate hose x x x13 7706103 Assembled siphon height 160 mm x 13 7706038 Assembled siphon height 250 mm x x14 7103731 Condensate drain pan gasket x x x

12 Spare parts

50 Gas 120 ACE 7717202 - v03 - 24062019

1224 Boiler body

Fig44

MW-6000746-01

2

2

1

6

3

34

5

4

Tab30Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7686377 Assembled frame x 1 7686139 Assembled frame x x2 7679958 117x34 handle diameter 65 mm x x x3 7676037 Wheel x x x4 7688301 Frame lateral gasket x 4 7688008 Frame lateral gasket x x5 7688353 Front panel gasket x 5 7688007 Front panel gasket x x6 7693874 R4-05 front panel lock x x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 51

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

E toimistoestsystemsfi

Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 51: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

1224 Boiler body

Fig44

MW-6000746-01

2

2

1

6

3

34

5

4

Tab30Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7686377 Assembled frame x 1 7686139 Assembled frame x x2 7679958 117x34 handle diameter 65 mm x x x3 7676037 Wheel x x x4 7688301 Frame lateral gasket x 4 7688008 Frame lateral gasket x x5 7688353 Front panel gasket x 5 7688007 Front panel gasket x x6 7693874 R4-05 front panel lock x x x

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 51

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

E toimistoestsystemsfi

Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 52: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

1225 Casing

Fig45

MW-6000747-01

2

1

6

5

2

8

7

8

7

4

11

3

9

10

Tab31Markers Reference Description Gas 120

ACE - 65Gas 120 ACE - 90

Gas 120 ACE - 115

1 7701400 Complete front panel x 1 7701417 Complete front panel x x2 S100419 Casing handle x x x3 7701326 Top panel x 3 7701326 Top panel x x4 7701403 Complete front top panel x 4 7701403 Complete front top panel x x5 7701377 Side panel right x 5 7701440 Side panel right x x6 7701378 Side panel left x 6 7701441 Side panel left x x7 7702298 Black plug diameter 159 mm x x x8 7697418 Unlocking guide x x x9 7673627 100150 mm concentric adapter - PPSAluminium x x x10 7700395 100150 mm flue gas outletair supply x x x11 7676213 Cable support x x x

12 Spare parts

52 Gas 120 ACE 7717202 - v03 - 24062019

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

E toimistoestsystemsfi

Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 53: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

1226 Boiler PCB housing

Fig46

MW-6000748-02

1

7

11

3

104

9

8

5

26

Tab32Markers Reference Description1 7673447 PCB unit2 7673548 PCB unit cover3 7616673 CSU-01 configuration key4 7685144 230 V internal cable harness5 7685823 24 V internal cable harness + sensor6 7654253 24 V lighting system7 7697709 CU-GH-08 PCB8 7608040 Traction arrester device (x10)9 7643731 Cable way10 7721882 Ferrite to clip WE 7427122211 7720834 AC electronic filter

12 Spare parts

7717202 - v03 - 24062019 Gas 120 ACE 53

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

E toimistoestsystemsfi

Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 54: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

13 Appendix

131 Package fiche - Boilers

Fig47 Package fiche for boilers indicating the space heating energy efficiency of the package

AD-3000743-01

1

lsquoIrsquo

2

+

3

( - lsquoIrsquo ) x 01 = plusmn

4

(lsquoIIIrsquo x + lsquoIVrsquo x ) x 09 x ( 100) x = +

(1)

A = 095 A = 091

B = 086 C = 083

D - G = 081

5

( - lsquoIrsquo ) x lsquoIIrsquo = +

6

05 x 05 x = -

54

lt30

G F E D C B A A+

A++

A+++

+ (50 x lsquoIIrsquo) =

7

7

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed

in a building as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the

products in relation to building size and characteristics

Boiler and supplementary heat pump installed with low temperature heat emitters at 35degC

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in ) Supplementary heat pump

Tank rating

Collector effi ciency (in

)

Tank volume (in msup3) Collector size (in msup2)

Seasonal space heating energy effi ciency (in ) Supplementary boiler

Class I = 1 Class II = 2 Class III = 15

Class IV = 2 Class V = 3 Class VI = 4

Class VII = 35 Class VIII = 5

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A use 095

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

13 Appendix

54 Gas 120 ACE 7717202 - v03 - 24062019

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

E toimistoestsystemsfi

Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 55: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

I The value of the seasonal space heating energy efficiency of the preferential space heater expressed in

II The factor for weighting the heat output of preferential and supplementary heaters of a package as set out in the following table

III The value of the mathematical expression 294(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

IV The value of the mathematical expression 115(11 Prated) whereby lsquoPratedrsquo is related to the preferential space heater

Tab33 Weighting of boilersPsup (Prated + Psup)(1)(2) II package without hot water storage tank II package with hot water storage tank0 0 001 03 03702 055 07003 075 08504 085 09405 095 09806 098 100ge 07 100 100

(1) The intermediate values are calculated by linear interpolation between the two adjacent values(2) Prated is related to the preferential space heater or combination heater

Tab34 Package efficiencyBrand name - Product name Product A Product B Product C Product DTemperature control X 90 92 95 97Temperature control Y 92 95 97 99

132 Product fiche - Temperature Controls

Tab35 Product fiche for temperature controlsRemeha - Gas 120 ACE HMI T-controlClass IIContribution to space heating energy efficiency 2

133 Product fiche

Tab36 Product fiche for boiler space heaters Gas 120 ACE -

65Gas 120 ACE - 90

Gas 120 ACE - 115

Seasonal space heating energy efficiency class A

(1) (1)

Rated heat output (Prated or Psup) kW 62 84 104Seasonal space heating energy efficiency 94 - -Annual energy consumption GJ 190 - -Sound power level LWA indoors dB 55 61 60

(1) No ErP information needs to be provided for heating boilers above 70 kW

SeeFor specific precautions about assembling installing and maintaining See Safety

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 55

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

E toimistoestsystemsfi

Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 56: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

13 Appendix

56 Gas 120 ACE 7717202 - v03 - 24062019

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

E toimistoestsystemsfi

Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 57: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

13 Appendix

7717202 - v03 - 24062019 Gas 120 ACE 57

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

E toimistoestsystemsfi

Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 58: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

13 Appendix

58 Gas 120 ACE 7717202 - v03 - 24062019

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

E toimistoestsystemsfi

Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 59: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

copy CopyrightAll technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

E toimistoestsystemsfi

Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche
Page 60: Installation and Service Manual - Remeha Commercial...documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve

Remeha BV

Marchantststraat 55

7332 AZ Apeldoorn

PO Box 32

7300 AA Apeldoorn

NL T +31 (0)55 549 6969

F +31 (0)55 549 6496

E remeharemehanl

Uw leverancier Votre fournisseur Ihr LieferantBE

Walter Boumlsch KG

Industrie Nord

6890 Lustenau

AT T +43 5577 81310

F +43 5577 8131250

E infoboeschat

Cipag SA

Zone Industrielle

1070 Puidoux-Gare

CH T +41 21 9266666

F +41 21 9266633

E contactcipagch

Bergen sro

Karlickaacute 937

153 00 Praha 5 - Radotiacuten

CZ T +420 257 912 060

F +420 257 912 061

E infobergencz

Remeha GmbH

Rheiner Strasse 151

48282 Emsdetten

DE T +49 25572 9161 - 0

F +49 25572 9161 - 102

E inforemehade

Scanboiler Varmeteknik AS

Vangvedvaelignget 1

8600 Silkeborg

DK T +45 86 82 63 55

E infoscanboilerdk

Ecotherm Energy SL

Berreteaga Bidea 19

48180 Loiu

ES T +34 94 471 03 33

F +34 94 471 11 52

E inforemehaes

EST Systems Oy

Kujamatintie 16

48720 Kotka

FI T +358 50 554 3068

E toimistoestsystemsfi

Marketbau - Remeha Kft

Gyaacuter u 2

2040 Budaors

HU T +36 23 503 980

F +36 23 503 981

E remeharemehahu

Euro Gas Ltd

Unit 38 Southern Cross Business Park

Wicklow

IE T +353 12868244

F +353 12861729

E saleseurogasie

Revis Srl

Via Trieste 4a

31025 Santa Lucia di Piave (TV)

IT T +39 0438 7019 07

F +39 02 360 285 83

E infore-visit

Remeha SRL

Str Padin Nr 9-13

Scara 5 Ap 53 Judejul Cluj

Cluj-Napoca

RO T +40 74 6170 515

F +40 26 4421 175

E remeharemehacazanro

Green Building

Temerinska 57

21000 Novi Sad

RS T +381 21 47 70 888

F +381 21 47 70 888

E infogreenbuildingrs

RES Enerji Sistemleri AS

Barbaros Bulvari No 522

Besiktas - ISTANBUL

TR T +90 212 356 06 33

F +90 212 275 00 62

E inforesenerjicom

Remeha Commercial UK

Innovations House

3 Oaklands Business Centre

Oaklands Park

RG41 2FD Wokingham

UK T +44 (0)118 978 3434

F +44 (0)118 978 6977

E boilersremehacouk

7717202 - v03 - 24062019

7717202-001-03

  • Contents
  • 1 Safety
    • 11 General safety instructions
    • 12 Recommendations
    • 13 Liabilities
      • 131 Manufacturers liability
      • 132 Installers liability
      • 133 Users liability
          • 2 Symbols used
            • 21 Symbols used in the manual
            • 22 Symbols used on the appliance
              • 3 Technical specifications
                • 31 Homologations
                  • 311 Directives
                  • 312 EC Declaration of Conformity
                  • 313 Gas categories
                  • 314 Certifications
                  • 315 Factory test
                    • 32 Technical data
                      • 321 ErP technical parameters
                      • 322 Circulating pump (not provided)
                        • Circulating pump
                          • 323 Sensor specifications
                            • Outside temperature sensor specifications
                            • Boiler sensor return sensor
                            • Circuit flow sensor domestic hot water sensor and system sensor
                            • Specifications of the boiler flue gas sensor
                                • 33 Dimensions and connections
                                • 34 Electrical diagram
                                  • 341 Electrical diagram of boiler
                                      • 4 Description of the product
                                        • 41 General description
                                        • 42 Operating principle
                                          • 421 Gasair setting
                                          • 422 Settings and safety devices
                                            • 43 Main boiler components
                                            • 44 PCBs
                                              • 441 Description of the CU-GH-08 PCB
                                                • 45 Standard delivery
                                                • 46 Accessories amp options
                                                  • 5 Installation
                                                    • 51 Installation regulations
                                                    • 52 Choice of the location
                                                      • 521 Data plate
                                                      • 522 Space required - Boiler ventilation
                                                      • 523 Ventilation
                                                      • 524 Fitting the outdoor sensor
                                                        • Recommended positions
                                                        • Positions to be avoided
                                                            • 53 Transport
                                                            • 54 Unpacking and preparing the boiler
                                                            • 55 Hydraulic connections
                                                              • 551 Water treatment
                                                              • 552 Flushing new installations and installations less than 6 months old
                                                              • 553 Flushing an existing installation
                                                              • 554 Connecting the heating circuit
                                                              • 555 Connecting the condensate discharge pipe
                                                              • 556 Filling the siphon
                                                                • 56 Gas connection
                                                                  • 561 Gas supply
                                                                    • 57 Air supplyflue gas outlet connections
                                                                      • 571 Classification
                                                                      • 572 Lengths of the airflue gas pipes
                                                                      • 573 Dimensions of flue gas outlet pipe
                                                                      • 574 Connection to the flue gas pipe
                                                                        • Fastening the coaxial pipes
                                                                          • 6 Operation
                                                                            • 61 Settings
                                                                              • 7 Maintenance
                                                                                • 71 General
                                                                                • 72 Specific maintenance operations
                                                                                  • 721 Cleaning the siphon
                                                                                  • 722 Checking the ionisation current
                                                                                  • 723 Replace the ionizationignition electrode
                                                                                  • 724 Servicing the forced flue connection pipes
                                                                                  • 725 Checking the burner and cleaning the heat exchanger
                                                                                  • 726 Checking the non-return valve
                                                                                      • 8 Decommissioning
                                                                                        • 81 Decommissioning procedure
                                                                                        • 82 Recommissioning procedure
                                                                                          • 9 Disposal and recycling
                                                                                          • 10 Environmental
                                                                                            • 101 Energy savings
                                                                                            • 102 Room thermostat and settings
                                                                                              • 11 Warranty
                                                                                                • 111 General
                                                                                                • 112 Terms of warranty
                                                                                                  • 12 Spare parts
                                                                                                    • 121 General
                                                                                                    • 122 Spare parts lists
                                                                                                      • 1221 Exchanger
                                                                                                      • 1222 Gas circuit
                                                                                                      • 1223 Hydraulic circuit
                                                                                                      • 1224 Boiler body
                                                                                                      • 1225 Casing
                                                                                                      • 1226 Boiler PCB housing
                                                                                                          • 13 Appendix
                                                                                                            • 131 Package fiche - Boilers
                                                                                                            • 132 Product fiche - Temperature Controls
                                                                                                            • 133 Product fiche