11/00 - 94858165 - 8666-4118A

Wall-hung gas boilers

CITY 1.24 and 2.24 GNCITY 1.24 and 2.24 B/P

Installation and commissioning manual

ENGLISH

CONTENTS

1. GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31.1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31.2 Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31.3 Technical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2. MAIN DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52.1 Packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.2 Mounting backplate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.3 Installed boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3. SCHEMATICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

4. CONTROL PANEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

5. HYDRAULIC SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .95.1 Circulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .95.2 8 litre expansion tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 5.3 12 litre expansion tank (option) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

6. INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 6.1 Regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 6.2 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

6.2.1 Installing the backplate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .116.2.2 Water and gas connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .116.2.3 Water drainage connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .126.2.4 Installing the boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .126.2.5 230 V electrical power supply connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .126.2.6 Connection of the Easymatic control or a room thermostat (option) . . . . . . . . . . . . . . . . . . .13

6.3 Pump logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .146.4 Fitting the boiler casing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

7. PRESSURE SETTING AND CALIBRATED INJECTOR AND DIAPHRAGM MARKINGS . . . . . . . . . . .15

8. COMMISSIONING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .168.1 Pre-commissioning checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .168.2 Switching on the boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .168.3 Filling the installation with water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .168.4 Igniting the boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .168.5 Air bleed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .178.6 Adjusting the domestic hot water flow rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .178.7 Adjustment of the maximum holding temperature of the DHW exchanger . . . . . . . . . . . . . . . . . . .178.8 Checks and adjustments in service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

8.8.1 Burner pressure check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .188.8.2 Burner safety check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .198.8.3 Safety thermostat check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .198.8.4 Switching off the boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .208.8.5 Anti-overflow safety check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

9. MODIFICATION TO USE DIFFERENT GAS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

9.1 Removing the burner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .219.2 Replacing the injectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .229.3 Replacing the diaphragm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .229.4 Replacing the gas assembly modulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .229.5 Reassembling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .229.6 Adjusting the minimum pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .239.7 “Gas type” label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

10. MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2410.1 Main heat exchanger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2410.2 Burner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2410.3 Domestic hot water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2510.4 Cleaning the ”cold water” filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

11. DRAINING DOWN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

12. ELECTRICAL CIRCUIT DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

13. FAULT CODES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

14. LIST OF SPARES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

15 WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37

2

3

CITY 1.24 wall hung gas boilers are for central hea-ting only. They can be associated with 50, 80 or 150litre storage tanks to produce domestic hot water.

CITY 2.24 boilers provide central heating and instan-taneous domestic hot water.

They use natural gas or butane/propane.

CITY 1.24 GN and CITY 2.24 GN boilers are factoryset for use with natural gas.

CITY 1.24 B/P and CITY 2.24 B/P boilers are factoryset for use with butane/propane.

The boiler output can be varied between 10 and 24kW for central heating and 8 and 24 kW for domestichot water.

These boilers are supplied in 2 packs:- backplate pack: water, gas and drain connections(safety valve, disconnector and domestic hot waterpot bleeder on the 2.24 model).- boiler pack.

Note:An extended height backplate must be used for boi-lers associated with an 80 litre tank.

1.2 Approvals

1. GENERAL

1.1 Description

Boiler 2.24 GN 2.24 B/P 1.24 GN 1.24 B/PCE No. CE-0085 AT 0282

Category II 2E+ 3+

Type B 11 BS

Combustion product removal Flue liner

Ignition Automatic

Gas Natural gas Butane/Propane Natural gas Butane/Propane

CITY boilers conform to the following European direc-tives and standards:

90/396 EEC Gas appliance directivesApplicable standards: EN 297 and EN 625.

73/23 EEC Low voltage directivesApplicable standards: EN 60.335.1

89/336 EEC EMC directivesApplicable standards: EN 50.081.1/EN 50.082.1./EN 55.014

92/42 EEC Efficiency directives�� CE

4

1.3 Technical specifications

BOILER 1.24 2.24

Nominal usable output (central heating and hot water modes) kW 24 24Nominal rated output (central heating and hot water modes) kW 26.4 26.4Combustion efficiency % > 92 > 92Minimum usable output (central heating mode) kW 10 10Minimum rated output (central heating mode) kW 11.5 11.5Minimum usable output (domestic hot water mode) kW - 8Minimum rated output (domestic hot water mode) kW - 9.5Maximum temperature (safety thermostat trips out) °C 105 105Weight of boiler without water, backplate, casing kg 30 35Weight of boiler without water, with backplate and casing kg 42 47Shipping weight kg 47 52

Central heating circuitNominal water flowrate (∆T = 20 K) l/h 1034 1034Available head bar 0.1 0.1Outlet temperature °C 40 - 90 40 - 90Maximum pressure bar 3 3Expansion tank l 8 8Initial tank pressure bar 0.75 0.75Minimum working pressure bar 0.3 0.3

Gas flowrate at nominal outputNatural gas H (G20) m3/h 2.79 2.79Natural gas L (G25) m3/h 2.97 2.97Butane (G30) kg/h 2.08 2.08Propane (G31) kg/h 2.05 2.05

Domestic hot waterSpecific hot water flow rate (∆T = 30 K) l/mn - 11.2Setpoint temperature °C - 40 - 60Maximum cold water pressure bar - 10Minimum operating pressure bar - 0.1Minimum pressure for 11 l/min bar - 1.3

Combustion product circuitConnection ø mm 125 125Minimum draw mbar 0.035 0,035Combustion product flowrate (nominal output) kg/h 69.5 69.5Combustion product temperature (nominal output) °C 114 114

Electrical circuitSupply voltage (50 Hz) V 230 230Output consumption W ≅ 80 ≅ 80

1 mbar = 100 Pa1 daPa ~ 1mm H2O

Serial No.

The serial number is on the information plates on theboiler.

8666N175

miniinformationplate

informationplate

173

20

97,5

630

332

15355555555

1000

540

570

A

C

B

Pack A B C

HA 9HA 10

860 375 95

HA 11 890 389 139

5

2. MAIN DIMENSIONS

2.1 Packages

2.2 Mounting backplate

630

173

27,5 20

332

15355555555

Boiler Backplate pack Boiler pack

CITY 2.24 GN HA 10 HA 3CITY 2.24 B/P HA 10 HA 4CITY 1.24 GN (50)* HA 9 HA 1CITY 1.24 B/P (50)* HA 9 HA 2CITY 1.24 GN (80)* HA 11 HA 1CITY 1.24 B/P (80)* HA 11 HA 2

* CITY 1.24 GN and CITY 1.24 B/P central heating boilers can be used in conjunction with a 50 or 80litre storage tank.

If they are associated with an 80 litre storage tankthey can be mounted on an HA 11 increased height backplate so that the front panel of the boiler can be lined up with that of the storage tank.

8666N073

8666N074

8666N075 8666N076

Standard backplate for 1.24 and 2.24 Increased height backplate for 1.24 / 80L

Backplate pack Boiler pack

Pack Number

Pack dimensions

6

2.3 Installed boiler

450 450300

880

= =

CITY 1.24 with increased height backplate(for lining up with 80 litre domestic hot water stora-ge tank)

8666N078

450 380230

880

= =

CITY 1.24 and 2.24

8666N077

Couplingring

internaldiameter125 mm

Couplingring

internaldiameter125 mm

TAF

TS

S1

1

2

M

S2

S3

1

2

M

3132

42

33

22

23

24

25

26

27

28

30

29

34

44

35

36

37

38

6

1 2 3 4 5

6 66

20

19

181716

15

1413

121110

439

8

7

21

7

3. SCHEMATICS

2.24 and 1.24 boilers

8666N016F

CITY 2.24

CITY 1.24

1. Central heating outlet valve2. Domestic hot water outlet valve3. Gas inlet valve4. Cold water inlet valve:

- water flow open / close- flowrate adjustment- filter (removable from below)

5. Central heating return valve6. Drain screw7. Water flowrate sensor8. Domestic hot water outlet sensor9. Domestic hot water heat

exchanger drain screw10. Domestic hot water heat exchan-

ger maintain temperature sensor11. Domestic hot water heat

exchanger air bleed screw12. Central heating / domestic hot

water changeover valve drive motor13. Central heating / domestic hot

water changeover valve14. Electronic pressure gauge15. Degassing chamber16. Circulator motor17. Burner pressure offtake18. Ionisation sensor19. Expansion tank20. Expansion tank inflation valve21. Automatic bleeder22. Anti-backflow draw cup-out23. Combustion product connector24. Combustion product anti-overflow

sensor25. Main heat exchanger26. Central heating outlet temperature

sensor27. Safety thermostat28. Combustion chamber29. Burner30. Igniter electrodes31. Gas valve modulator32. Gas valve safety valves33. Gas supply pressure offtake34. Modulator gas valve35. Domestic hot water heat

exchanger (2.24 only)36. Central heating circuit safety valve37. Central heating circuit by-pass pipe38. Disconnector42. Igniter43. Domestic hot water flow rate

controller (10 l/min)44. Non return valve* If boiler is connected to domestic hotwater storage tank

Centralheatingoutlet

D.H.W. Gasinlet

D.C.W. Centralheatingreturn

Centralheatingoutlet

Domestic*hot water

storage tankprimary outlet

gasinlet

Domestic*hot water

storage tankprimary return

Centralheatingreturn

8

4. CONTROL PANEL

G IH LKJ M

A B2B1B DC E F

8666N020

A. Temperature display- displays the temperature at the central heatingoutlet or the domestic hot water outlet when wateris drawn off.

B. Domestic hot water heat exchanger tempera-ture button (CITY 2.24 only).This function is factory set to the activated position.This provides maximum user comfort.When the boiler is switched on, indicator B2 is onto show that this function is activated.The function can be deactivated, for example in the event of prolonged absence, by pressing but-ton B (indicator B2 turns off). Disconnection of the output supply does not modi-fy the selected operating mode.

Note:- if indicators B1 and B2 are both turned on, theburner has been ignited to heat the domestic hotwater supply.- B2 flashes when the holding position is activatedby bypassing the Easymatic control.

C. Safety indicator

D. Unlocking button- used to reset the boiler from failsafe mode

E. “clean” button- forces operation of the boiler

• press and hold for 5 seconds (display shows )to force the burner to the P min position

• press again (display shows ) to force the burner to the P max (24 kW) position

F. “Installer” button

G. 3-position switch- off/anti-freeze

- central heating and domestic hot water (winter)

- domestic hot water (summer)

H. “Central heating” on indicator- on when the boiler is ignited to heat the water inthe central heating circuit

I. Central heating temperature control- range from 40 to 90°C (click stop at 75°C)

J. Flame present indicator- on when the burner is ignited

K. Domestic hot water temperature control- range from 40 to 60°C (click stop at 55°C)

L. “Domestic hot water” on indicator- on when the burner is ignited to heat the domes-tic hot water supply

M. Pressure indicator- indicates the pressure in the central heating circuit (0.5 to 2.5 bars)

9

5. HYDRAULIC SPECIFICATIONS

5.1 Circulator

The circulator incorporated in the boiler is equippedwith a 3-speed motor with a output consumption of 80 W supply. It is factory-set on high.

RemarkFor boilers also producing domestic hot water (City2.24 or 1.24 plus storage cylinder), the circulator canif required be set on intermediate. It is neverthelessrecommended, for reasons of comfort, to leave it onhigh.

For installations requiring greater hydraulic perfor-mance it is possible to replace the motor with a moreoutputful one (pack HA 209) with a output consump-tion of 93 W.

PV

MV

GV

PV

MV

GV5

6

4

3

2

1

00 200 400 600 800 1000 1200

8666N079

5.2 8 litre expansion tank

CITY boilers are equipped as standard with an 8 litretank (initial pressure 0.75 bar). The total water volu-me is determined in accordance with the static headof the installation and for an average water tempera-ture of 80°C (flow: 90/return:70).

5.3 12 litre expansion tank

Static head 5 6 7 8 9 10in metres up to

Total water 138 129 120 111 102 92

volume

CITY boilers can optionally be fitted with a 12 litreexpansion tank (initial pressure 0.75 bar) (pack HA208).

1. PV : low speed2. MV : medium speed3. GV : high speed

80 W motor93 W motor (option)

6. INSTALLATION

6.1 Regulations

Installation and maintenance regulations

The appliance must be installed and maintained by aqualified professional in accordance with statutoryrequirements.

Establishments receiving the publicInstallation regulations:

The appliance must be installed and maintained inaccordance with statutory requirements.

Static head 5 6 7 8 9 10in metres up to

Total water213 204 195 186 177 167

volume

Flowrate (l/h)

Hea

d (

mcE

)

10

48 cmmini

55 cmmini

S1

30 c

mm

ini

5 cm

10 cmmini *

S2

8666N090

15 mm mini

15 mm mini

- The connection to the flue must be as short anddirect as possible.- Do not install the boiler over a cooker.

8666N089

- The boiler must be fixed to a solid wall capable ofsupporting the weight of the appliance when filledwith water and associated equipments.

- A 15 mm gap on either side of the boiler is sufficientfor removing and replacing the casing. However, a 50 mm gap is recommended to facilitate maintenance.

The installation must comply with applicable regula-tions.

Thermostatic radiator valves must not be used on allradiators.

The CITY boiler incorporates a by-pass assuring aminimum flow of 200 l/h.

- The boiler must not be installed above a heat sour-ce or a cooker.

- The IPX4D protection index authorises installationin bathrooms, but outside protection level 1 and 2volumes.

Radiators in rooms containing a room thermostatmust not be fitted with thermostatic valves.

Ventilation of the room in which the boiler is ins-talled

Fresh air supplyIn the case of direct fresh air entry, the minimum arearequired is 50 cm2.Vitiated air extractionIf the boiler is installed in a kitchen, for example, vitia-ted air from appliances not connected to an extractorpipe (gas cooker, etc.) can be extracted via the drawcup of the boiler. For this it is sufficient for the top ofthe boiler casing to be at least 1.8 m above the floor.

Note:We would draw your attention to the risk of corrosionof boilers installed or near rooms in which the atmos-phere may be polluted by substances containing chlo-rine or fluorine. Examples are: hairdressing salons,industrial premises (solvents), refrigeration plants, etc.The warranty does not cover such installations.

either side ofthe boiler

S1 and S2 : Minimum 600 cm2 unimpeded area10 cm min * : Distance between front of boilerand inside of closure panel

11

6.2.1 Installing the backplate

See the installation instruction sheet supplied in thebackplate pack.

6.2.2 Water and gas connections

With 8 or 12 litre expansion tanks, the connectionscan be made from below, from above or from the rear.

8666N130

Important notes:

• Before connecting the boiler to an existing installa-tion, the installation must be thoroughly rinsed outusing an appropriate product to prevent sludge rea-ching the heater body of the new boiler.

• If different metals are used, such as copper and alu-minium, a corrosion inhibitor must be used.

6.2 Connections

• Central heating connection

Copper bush for connection to 16/18 mm dia. indoortube or 20/22 mm dia. outdoor tube.

• Domestic hot water connection

Copper bush for connection to 14/16 mm dia. indoortube or 18/20 mm dia. outdoor tube.In hard water areas (hardness >25) we recommend awater softener upstream of the boiler.

• Gas connection

Conform to the applicable provisions and in particulargas installation specification. A shut-off valve mustalways be installed as close as possible to the boiler.

The copper bush is for 16/18 mm dia. indoor coppertube.

Operating pressure20 mbar for H natural gas H (G20)25 mbar for H natural gas L (G25)29 mbar for butane (G30)37 mbar for propane (G31)

8666N081

All nested connections to the gas tube must bemade using sleeves purchased off the shelf.

Tube-cutter Connections

From the rear

From above

From below

Centralheating outlet

ø18

D.H.Wø16

Gasinletø18

D.C.Wø16

Centralheating return

ø18

ø18 od ø16 od ø18 od ø16 od ø18 od

ø20 id ø18 id ø18 id ø20 id

1

3

2

4

12

6.2.3 Water drain connection

8666N087

6.2.4 Installing the boiler

2 Offer up the boiler above the valve bracket so thatit backs onto the backplate.

3 Lower the boiler gently. Fit the 5 seals supplied inthe sachet with the manual.

4 Remove the retaining pins and tighten the nuts.

Remove the plastic plugs from the boilerpipes.

1

6.2.5 230 V electrical main supply connection

CITY boilers are fitted with a 3-core main supplycable approximately 1.5 m long.

For correct electrical installation, the appliance mustbe connected to a socket outlet or a circuit includinga 2-pole switch with an open contact spacing greaterthan 3 mm.

mar

ron

sur p

hase

8666N091 A

Electrical connections must be made by aqualified professional.

Note:When connecting to the mains electrical mainsupply, connect the brown wire to live and theblue wire to neutral.If these connections are reversed the ionisa-tion type flame detector will not operate. Theboiler will then go to the fail-safe mode.

P19

The 32 mm diameter “waste water” draina-ge connection supplied with the backplatemust be fitted only after brazing the coppertubes.It is fixed to the left-hand upright of thebackplate using a 12 mm long 4 mm dia-meter screw.Evacuation to a drain is by means of asyphon.

8666N088 B

brown to live

blue to neutral

grenn/yellow to earth

13

6.2.6 Connection of the Easymatic control or a room thermostat (option)

The options are to be connected at the back of thecontrol panel under the small flap.

- Pivot the panel forwards after unscrewing the 2 fas-tening side screws.

- Pull the small flap towards you and ensure that theconnections are in accordance with the selectedoptions.

• Easymatic communicative remote control (box AD 136)

- see the instructions delivered with the Easymaticremote control.

• Programmable room thermostat (box AD 137)

- remove the resistance from the Room Thermo-stat connector- connect, in any order, terminals 1 and 3 of the thermostat to the terminals of the Room Thermo-stat connector.- see also the instructions delivered with the ther-mostat.

• Non-programmable room thermostat (box AD 140)

- remove the resistance from the Room Thermo-stat connector- connect, in any order, terminals 1 and 4 of the thermostat to the terminals of the Room Thermo-stat connector.- see also the instructions delivered with the ther-mostat.

Note : If a room thermostat with 2 dry-contact wireshas been installed, it may be used.

For this:

- remove the resistance from the Room Thermostatconnector

- connect, in any order, the 2 thermostat wires to theterminals of the Room Thermostat connector.

TAMSB

1 2 3

BUS

TAM SB

BUS

8666N094

Remark:

Connections can be with either a 2 wire telephone cableor an electrical section cable of up to 2 x 1,5 mm2.

14

TAMSB

1 2 3

BUS

1 2 3

6.3 Pump Logic

1. In mode (domestic hot water) or in Easymatic

mode (summer), the pump works when domestic hot water is produced (d.h.w), and cutsoff 30 seconds after the d.h.w has been produced;the inversion valve will remain in the d.h.w. posi-tion.

2. In mode (heating + d.h.w.)

A. Without a Room Thermostat or EasymaticThe pump will work continuously.

B. With a Room Thermostat• Switch in position 1:

Continuous operation of the pump.

• Switch in position 2:- The pump cuts off 15 minutes after startingthe Room Thermostat.- After production of d.h.w., if the Room Ther-mostat is started up, the pump cuts off after

30 seconds and the inversion valve remains inthe d.h.w. position.

• Switch in position 3:- The pump cuts off 30 seconds after startingthe Room Thermostat- After production of d.h.w., if the room ther-mostat is started up, the pump cuts off after

30 seconds and the inversion valve remains inthe d.h.w. position.

C. With an Easymatic:• Switch in position 1 or 2:

Continuous operation of the pump.• Switch in position 3:

- When the room temperature is correct, the pump remains in continuous operation.- When the room temperature is too high, thepump cuts off after 15 minutes.- After the production of d.h.w., if the room temperature is too high the pump cuts off after 30 seconds and the inversion valve remains in the d.h.w. position

3. In mode

The pump is stopped.If need be, when the room temperature falls below10° C, the pump will start up to prevent the boilerfrom freezing.

8666N124A

6.4 Fitting the boiler casing

8666N0938666N092

7. PRESSURE SETTING AND CALIBRATED INJECTOR AND DIAPHRAGM MARKINGS

Equipment

Burner pressure and gas flow rate

* 1013 mbar at 15°C

15

Note : fit the front panel after commissioning the boiler.

CITY 1.24 and 2.24

Output nominal minimum

Burner Nat. gas H mbar 6.5 1.0pressure Nat. gas L mbar 7.9 1.4

Butane mbar 19.1 2.5Propane mbar 24.1 3.4

Flow Nat. gas H m3/h 2.79 1.01

rate* Nat. gas L m3/h 2.97 1.07

Butane kg/h 2.08 0.75

Propane kg/h 2.05 0.74

øCITY 1.24 and 2.24 mm

Burner Natural gas H and L 1.35

injectors Butane / Propane 0.8

Diaphragm Natural gas H and L 5.2

Butane / Propane 4.2

16

8. COMMISSIONING

8.2 Switching on the boiler

Check the 3-position switch G is set to “off/anti-free-ze” and then switch on the boiler by plugging in theplug or operating the isolating switch.

8.3 Filling the installation with water

- Open valves 1-2*-4* and 5.

- Check that the automatic bleeder 21 at the top of theexpansion tank is open.

- Fill the installation to a pressure of 1.5 to 2 bars viavalves 38.1 and 38.2.

- Close valves 38.1 and 38.2 when the installationhas been filled with water.

* CITY with domestic hot water production.

8.4 Igniting the boiler

- Set the switch to the position marked .

- If there is a room thermostat or a communicatingremote controller, set it to call for heat.

- Check on the boiler label that it is set up for the gasin use.

- If not, see chapter 9 “Modification to use a differentgas”.

- Open the gas valve 3.

- Take out the 2 fixing screws at the sides and swingthe control panel forward.

- Check the pressure of the gas supply to the boilerat the pressure offtake on the gas valve (33) againstthe information plate.

- Close the gas pressure offtake screw.

- Check for gas and water leaks.

Return the control panel to its original position andreplace the 2 fixing screws at the sides.

8.1 Pre-commissioning checks

3

33

8666N180

G

8666N096

38.1

38.21

2*

4*5 8666N098 B

Commissioning must be carried out by a qua-lified professional

8666N097

17

4.1

8.5 Air bleed

8.6 Adjusting the domestic hot water flow rate(CITY 2.24 only)

Open the stopper of the automatic bleeder inthe top rear corner of the boiler.

Domestic hot water heat exchanger(CITY 2.24 only)

- Bleed the domestic hot water heat exchangerby unscrewing the bleeder slightly.

- To accelerate bleeding, alternate betweencalling for heat and hot water.

- Tighten the bleeder after bleeding the air.

Central heating installation

- Check that all of the installation has been bledcorrectly.

1

2

8666N106 B

8666N105 A

The maximum domestic hot water flow rate is limitedto 10 l/min by the flow rate controller which is moun-ted on the flow rate detector (item 43 § 3).This maximum flow rate can be reduced in 2 ways:

- 1. by adjusting the screw 4.1 (8 mm Allen key),- 2. by replacing the 10 l/min controller with an

8 l/min controller.

The 8 l/min controller (package HA 218) is suppliedwith fitting instructions.

1

2

8.7 Adjustment of the maximum temperature position of the DHW exchanger : TMM(CITY 2.24 only)

The DHW exchanger, when activated, is maintainedat the projected holding temperature DHW - 5° C orat the maximum TMM.

Adjustment Display

- Press the button for 5 seconds (55°C)

- Press repeatedly to select the desiredmaximum temperature position TMM

To exit the display, wait 5 minutes without pressing anything

AE

18

8.8. Checks and adjustments in service

8.8.1 Burner pressure check

- Unscrew the screw inside the burner pressure offta-ke 17 a few turns.

- Connect a pressure gauge to the pressure offtakeand verify that the pressure corresponds to that indi-cated in chapter 7.

17

8666N104 A

8666N107A

- Remember to close the pressure off-take screw 17 after measuring the pres-sure.

- Check the pressure offtake 17 for gasleaks.

Checking the burner pressure at nominal (max)output:

Force the burner to operate at maximum output by

pressing the button marked E :

- Press and hold down the “clean” button E for

5 seconds. The display A indicates .

- Press button E briefly. The display A indicates .

Check that the measured pressure corresponds tothat indicated in chapter 7.

If there is any significant difference, check that theboiler is equipped for the gas supplied as indicated inthe table in chapter 7.

To revert to normal operation press button E briefly.

A C D

19

8.8.2 Burner safety check

- With the burner lit, cut off the gas supply by closingthe shut-off valve.

- Check the reaction of the safety system: the alarm indicator C should turn on and the display

A should alternately indicate and .

- Open the gas valve and press the reset button D.

8.8.3 Safety thermostat check

8666N108 B

The safety thermostat should shut down the boiler ifthe temperature at the central heating outlet exceeds105°C.

AE

AC D

1 5

- Press the “clean” button E for 5 seconds. The dis-

play A shows .

- Press button E briefly. The display A shows .

- Press button E a third time for 5 seconds. Thisforces the burner to minimum output and the display

A indicates alternately and the original tempe-rature.

- Close the central heating flow and return valves 1 and5 using an 8 mm wrench.

The outlet temperature is no longer limited by thecontrol system and the safety thermostat should shutdown the burner.

When the temperature exceeds 100°C and the safe-ty thermostat has not yet tripped, the display indi-

cates alternately and .

- when the burner is shut off by the safety thermostat:• indicator C turns on

• the display alternately indicates and .

- To restart the burner:• open central heating flow and return valves 1and 5• press button D.

8666N219

8666N111 A

8666N218

If the boiler has not shut down 2 minutesafter shutting the valves, disconnect the boi-ler from the mains electrical output supply.

If the burner is turned off, the boiler cools and short-ly afterwards the burner is ignited again and the risein temperature continues:

20

8.8.5 Anti-overflow safety check

If fumes overflow through the anti-backflow device,the anti-overflow safety device 24 disconnects theelectrical output supply to the valve and the boilergoes to its fail-safe mode. The anti-overflow device must be checked on com-missioning the boiler and during annual maintenance.

Check procedure:- Turn off the boiler by setting the 3-position switch Gto “off/anti-freeze”.- Remove the pipe connecting the boiler to the flue.- Using a sheet of metal (or any other heat-resistantmaterial), block the combustion product outlet of theboiler.- Start the boiler; combustion products are evacuatedin the upper part of the boiler via the openings in theanti-backflow device.- The anti-overflow sensor disconnects the electricaloutput supply from the gas valve within 2 minutes.The burner is turned off.- After completing the check, replace the pipeconnecting the boiler to the flue. The boiler restartsautomatically after about 10 minutes.

24

8666N118

Note: To avoid this time delay it is sufficient to switch offthe mains electrical output supply and switch it onagain.

8.8.4 Switching off the boiler

G

8666N096

Set switch G to “off/anti-freeze”:The boiler goes to the standby mode and the display

indicates

Note: In this operating mode only the boiler is protected against freezing.

Disconnect the electrical output sup-ply and the gas supply from the boiler.

8

5

7

6

1

2

3

4

21

9. MODIFICATION TO USE DIFFERENT GAS

The operations described belowmust be carried out by a qualifiedprofessional.

CITY 2.24 GN and 1.24 GN boilers are equipped touse natural gas. CITY 2.24 B/P and 1.24 B/P boilersare equipped to use butane/propane.The procedure from changing from one gas to theother is as follows:9.1 Removing the burner9.2 Replacing the injectors9.3 Replacing the diaphragm9.4 Replacing the gas assembly modulator9.5 Reassembling9.6 Adjusting the minimum pressure9.7 “Gas type” label

9.1 Removing the burner

8666N177

Remove the front panel from the boiler casing (2screws at the top).

Remove the front plate from the combustionchamber (2 screws at the top + 2 wing-nuts).

Disconnect the 2 igniter electrodes.

Disconnect the wire from the ionisation sensor.

2

3

4

1

Remove the anti-radiation plate by pulling itforwards.

Unscrew the 3/4” nut at the top of the gasvalve.

Unscrew the 4 screws fixing the burner to themanifold. Use a magnetic screwdriver if pos-sible.

Remove the burner, the diaphragm and the 2seals.

8666N178

5

6

7

8

3

2

1

9.5 Reassembling

Reassembly is the reverse procedure to disassembly.

- Connect the igniter electrode.

- Connect the ionisation sensor.

- Replace the anti-radiation plate.

- Replace the combustion chamber side and frontplates.

- Switch on and open the gas supply.

Check for gas leaks.

22

9.3 Replacing the diaphragm

9.4 Replacing the gas assembly modulator

8666N179

9.2 Replacing the injectors

7

8666N201

Replace the injectors and the seals (see chapter 7). When replacing the burner, fit the new diaphragm to thegas assembly between 2 new seals. See chapter 7.

8666N184

Disconnect the two wires from the modulator.

Unscrew the 2 screws retaining the modulator using a Torx No. 20 wrench.

Replace the modulator and the seal, checking that the seal and the spacer seat correctly.

� Modulator with grey cap = natural gas, modulator mark:1.5 - 20 mbar.

� Modulator with yellow cap = butane/propane, modulator mark: 3 - 37 mbar.

Reconnect the 2 wires to the modulator.

2

3

1

23

17

8666N104 A

9.6 Adjusting the minimum pressure

Natural gas H and L, butane and propane.

Adjust the pressure at the burner downstream of thegas assembly. The values to set are indicated inchapter 7. Measure the pressure at the boiler by connecting apressure gauge to pressure offtake 17, as follows:

9.7 “Gas type” label

Affix the label indicating the type of gas for which theboiler is equipped and set up.

1

3

2

5

8666N122

Remove the screw retaining the plastic cover.

Remove the cover.

Verify that the “maximum flowrate” plastic nut isscrewed fully home.

Force operation of the boiler at the minimum out-put setting by pressing the “clean” button E andholding it down for 5 seconds (see section 4).

Adjust the minimum pressure with the brass nut.- Turning the nut clockwise increases the

pressure.- Turning the nut anti-clockwise

reduces the pressure.

After completing the adjustment, replace thecap.

To revert to normal operation, press button E briefly.

1

2

3

4

5

Disconnect the pressure gauge.Screw in the screw of the pressure off-take. Check for gas leaks.

8666N183

6

24

10. MAINTENANCE

4

4

6

30

5

5

3

8666N119 A

10.1 Main heat exchanger

Periodically check the main heat exchanger for soi-ling.If necessary remove the heat exchanger and wash itwith very hot water containing a detergent.

Maintenance operations must be carried out by aqualified professional.

10.2 Burner

Check the condition of the burner annually.Use a dry soft brush to clean the burner, or wash itwith hot water containing a detergent. Rinse tho-roughly.

For instructions on removing the burner, see section9.1.

1

2

8666N176

Remove the boiler casing front panel (2 screwsat the top).

Remove the front plate from the combustionchamber (2 screws at the top + 2 wing nuts).

Remove the anti-radiation plate.

Remove the side plates of the combustionchamber.

Unscrew the 3/4" nuts of the heat exchanger(30 mm wrench).

Remove the main heat exchanger by pulling ittowards you.

2

3

4

1

5

6

Disconnect the electrical output supplyand the gas supply from the boiler. Closethe boiler isolating valves and open thedrain screws.

Note:When refitting the main exchanger:- grease the threads of the connectors- replace the seals- tighten the nuts moderately

25

1

37

4 6

5

If the domestic hot water heat exchanger is affectedby limescale, clean it by connecting a descaling

pump to the two domestic water connectors ➂.Use only products suitable for this purpose.

To obtain access to the domestic water connectors:

Tilt the control panel forward after removing the2 fixing screws at the sides.

Unscrew the two 1/2”nuts on the domestic waterheat exchanger (24 mm wrench).

Unscrew slightly the 3/4” nut on the domestichot water outlet (30 mm wrench).

Pivot the domestic hot water outlet tube towardsthe front.

Unscrew the 3/4" nut on the domestic cold waterinlet pipe (30 mm wrench).

Remove the domestic cold water inlet pipe.

Connect the descaling device to the two 1/2"exchanger connectors.

After descaling, reassembly is the reverse of theabove procedure.Replace the seals with new seals.

10.3 Domestic hot water

Protect the control panel from beingsplashed with descaling product.

8666N182

1

2

3

4

5

6

7

8

Disconnect the electrical output supplyand the gas supply from the boiler.Close the domestic water inlet and outletvalves and open the drain screws.

Turn the tap off (6mm spanner) to avoid any dra-wing off from the domestic circuit (kitchen,bathroom, etc.) and major discharge when thefilter is dismantled.

Unscrew the drain cock after connecting a hose(dimension: 8 mm).

Unscrew the adjustment door-filter-tap with a17mm spanner.

If required, remove the filter and clean it with asoft brush- replace the filter on the filter-door and screw itinto the tap (17mm spanner)- turn off the drain cock- turn on the tap (6mm spanner).

1

3

2

4

8666N293

1

2

3

4

10.4 Cleaning the ”cold water” filter(CITY 2.24 only)

26

11. DRAINING DOWN

To drain down the boiler:

- Close gas valve 3, water valves 1, 2, 5(8 mm wrench) and 4 (6 mm wrench).

- Connect an 8 mm internal diameter hose to drain screw 6.

- Unscrew the drain screw.

6

4*6*

6*

3

5

2*1

6

8666N117 B

* Boiler prepared for domestic hot water supply.

27

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CIT

Y2.

24 w

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06-5

112

M

8806

-511

1

1014

1 2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

J12

J17

2

J4

VIN

VP

VG

M

TE

MP

O

11

11

23

22 L

NA

LI.

230V

/ 50

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J3J2

J18

J1 J2

J6 J8 J10

J7 J8

J1

J11

12

34

56

2

θ °C

θ °C

θ °C

θ °C

2

SC

H

SE

CS

SE

CS

M

PM

NM

TAF

1 1

2 1

2 1

2 1

θ

DB

M

TS

1 2 3

1 2 3 1 2

12

56

34

3 4 5 6

J3J4

J5

SI

TA

12

34

56

CD

CTA

MS

B

J5

J15

J13

8666

N11

0 E

base

d on

8666

.407

4 C

12. ELECTRICAL CIRCUIT DIAGRAMS

28

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sen

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SC

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SE

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hot

wat

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enso

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EC

SM

Dom

estic

hot

wat

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tem

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tion

sens

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Igni

ter

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TAF

Ant

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osta

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TAM

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8806

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2

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1

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1 2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

J12

J17

12

34

56

CD

CS

BJ5

2

J4

VIN

VP

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MP

O

11

11

23

22 L

NA

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/ 50

Hz

J3J2

J18

J1 J2

J6 J8 J10

J7 J8

J1

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12

34

56

2

θ °C

θ °C

SC

H

PM

NM

TAF

1

2 1

2 1

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1 2 3

1 2 3 1 2 3 4 5 6

J3J4

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12

56

34

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12

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J15

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8666

N10

9 E

base

d on

8666

.407

8 C

29

Alarm code MeaningCentral heating outlet temperature sensor fault

Anti-overflow sensor fault

Domestic hot water outlet (CITY 2.24) storage tank (CITY 1.24) sensor fault

Domestic hot water maintain temperature function sensor fault

Storage tank sensor connection on CITY 2.24 (incoherent)

Electronic pressure gauge fault

2. SENSOR alarms

ouou

ou

13. FAULT CODES

In the event of a fault, the display indicates an alarm

message by alternately showing and a codefrom which the type of fault can be determined.

There are two alarm categories:

1. Safety alarms

Alarm code MeaningIgniter fault

Ionisation fault

Spurious flame

Overheating alarm

No water

Combustion product overflow. Display shows combustion product temperature at time of overflow

Card fault

Safety fault display interrupted

à

14. LIST OF SPARESSee following pages

8666N121

8666N121

Spares CITY 1.24 and 2.24

8666-4140 A

DE DIETRICH THERMIQUE • BP 30 • 57, rue de la Gare • F-67580 MERTZWILLER • Tél. : +33 3 88 80 27 00 • Fax : +33 3 88 80 27 99N° IRC : 347 555 559 RCS STRASBOURG

Spare Part Centre • 4, rue d'Oberbronn • F-67110 REICHSHOFFEN • Tel. :+33 3 88 80 26 50 • Fax : +33 3 88 80 26 98

1235

4

6

7

Note: to order a spare part it is essential to give the code number in the list opposite the item number of the part required.

8

11

13

9

66

1214

10

11

8666N133

8666N134

FRAME

ANTI-BACKFLOW DEVICE + COMBUSTION CHAMBER

15

16

18

1719A

25A

26

25

26

19

20

21

16

17

26

19

23

24

22

25A

26

2519A

PIPES – 1 SERVICE

PIPES – 2 SERVICES

8666N135B

8666N136 B

CITY 1.24 and 2.24

2/7

36

38a

39 / 40

38

92

93

91

30 / 31

42

64 65

41

34 / 35

14x

33

32

37

4x

2x

52 63 67

54

47

46

49

45

48

51

50

46

65

57

55 60

61

59

56

6268

- Fermer les vannes départ et entrée eau froi-

de sanitaire .

- raccordé un tuyau flexible ø intérieur 8 mm sur les visde vidange , puis les desserrer.

Couper l'alimentation électrique et l'ali-

mentation en gaz de la chaudière .

03/99 - 948.58.118 - 8666-4106

Kit régulateur de débit d'eau sanitaire

Colis HA 218

CITY 2.24 ET 2.24 FF

Pour monter un régulateur de débit 8 l/mn ou 10 l/mn surune chaudière CITY 2.24 ou 2.24 FF, procéder commesuit :

46

6

32

8666N192

4

6

3

8666N191

2

Blanc : 8 l/mn Bleu : 10 l/mn

69

Montage

Assembly

DOMESTIC HOTWATER HEAT EXCHAN-GER AND 3-WAYVALVE ASSEMBLY

8666N137A

8666N138 C

BURNER

CITY 1.24 and 2.24

From14/01/99

Until13/01/99

3/7

70

71

73

101

102

72

81

83

76

85

77

75

78

87

88

86

79 80

82

BOILER CASING

CONTROL PANEL

8666N140

8666N139

CITY 1.24 and 2.24

4/7

112

113

106

122

129

124

126

110

105

109

108

111

107

108

128

114

116

122

118

117

123

125 121119 121a 120

115

127

124

128

126

BRACKET - 1 SERVICE

BRACKET – 2 SERVICES

8666N141C

8666N142 A

CITY 1.24 and 2.24

5/7

CITY 1.24 and 2.24

FRAME

1 8666-8500 COMPLETE (CPL) FRAME

2 8666-5500 COMPLETE LEFT UPRIGHT

3 8666-5501 COMPLETE RIGHT UPRIGHT

4 8666-5502 COMPLETE CHASSIS SUPPORT

5 8666-5503 COMPLETE TANK SUPPORT

6 8666-5504 COMPLETE PIPE SUPPORT

7 8666-5505 COMPLETE CABLE-CLAMP

ANTI-BACKFLOW DEVICE

8 8666-5569 COMPLETE ANTI-BACKFLOW DEVICE

9 8666-5506 COMPLETE NOZZLE

COMBUSTION CHAMBER

10 8666-5507 COMPLETE COMBUSTION CHAMBER BACK

11 8666-8544 INSULATED COMBUSTION CHAMBER SIDE PLATE

12 8666-8545 INSULATED COMBUSTION CHAMBER FRONT PLATE

13 8666-5508 COMBUSTION CHAMBER INSULATION KIT

14 8666-5509 FRONT PLATE FIXING ROD KIT

PIPES

1 SERVICE

15 8666-5510 COMPLETE CENTRAL HEATING OUTLET PIPE

16 8666-5511 COMPLETE PRIMARY RETURN PIPE

17 8666-5512 CPL CENTRAL HEATING EXCHANGER RETURN PIPE

18 8666-5513 CPL DOMESTIC HOT WATER PRIMARY RETURN PIPE

19 8666-5514 COMPLETE EXPANSION TANK PIPE

19a 8666-5578 COMPLETE EXPANSION TANK PIPE

25 9758-1257 8 LITRE EXPANSION TANK

25a 8666-5579 COMPLETE EXPANSION TANK

2 SERVICES

16 8666-5511 COMPLETE PRIMARY RETURN PIPE

17 8666-5512 CPL CENTRAL HEATING EXCHANGER RETURN PIPE

19 8666-5514 COMPLETE EXPANSION TANK PIPE

19a 8666-5578 COMPLETE EXPANSION TANK PIPE

20 8666-5515 COMPLETE PRIMARY OUTLET PIPE

21 8666-5516 CPL CENTRAL HEATING EXCHANGER OUTLET PIPE

22 8666-5517 COMPLETE LOOP TUBE

23 8666-5518 COMPLETE DOMESTIC COLD WATER PIPE

24 8666-5519 COMPLETE DOMESTIC HOT WATER PIPE

25 9758-1257 8 LITRE EXPANSION TANK

25a 8666-5579 COMPLETE EXPANSION TANK

26 9491-8141 AUTOMATIC AIR BLEEDER + SEAL

BURNER

30 9758-0051 WORGAS NG BURNER

31 9758-0052 WORGAS BP BURNER

32 8666-5520 COMPLETE IGNITER SPARK PLUG SET

33 8666-5521 COMPLETE IONISATION SENSOR

CONVERSION KIT

34 8666-7212 NG CONVERSION KIT

35 8666-7213 BP CONVERSION KIT

GAS VALVE

36 8666-5522 COMPLETE NG VALVE

36 8666-5580 COMPLETE B/P VALVE

37 8666-5523 COMPLETE GAS PIPE

38 8666-5524 COMPLETE VALVE GAS/MANIFOLD PIPE

38a 8666-5581 COMPLETE FLANGE

39 8666-5525 COMPLETE NG DIAPHRAGM

40 8666-5526 COMPLETE BP DIAPHRAGM

41 8666-8019 ANTI-RADIATION PLATE

42 8666-5577 COMPLETE CENTRAL HEATING EXCHANGER

2 SERVICES ONLY

45 8666-5527 COMPLETE DOMESTIC HOT WATER EXCHANGER

46 9490-2000 DRAIN VALVE

47 9491-8134 BLEED SCREW

48 9491-4277 NON-RETURN VALVE

49 8666-5528 DOMESTIC HOT WATER EXCHANGER FIXING KIT

50 8666-5529 CPL DOMESTIC HOT WATER EXCHANGER BASE

51 8666-5530 DOMESTIC HOT WATER EXCHANGER INSULATING KIT

52 8666-5531 DRAIN PIPE

COMPLETE 3-WAY VALVE

54 9513-2296 COMPLETE CIRCULATOR

55 9510-0502 COMPLETE STEPPER MOTOR

56 8666-5541 COMPLETE CIRCULATOR BASE

57 8666-5576 CIRCULATOR SEAL SUB-ASSEMBLY

59 8666-5571 COMPLETE VALVE BODY

60 9750-9052 COMPLETE VALVE

61 8666-5532 COMPLETE 3-WAY VALVE FLANGE

CONTROL AND SAFETY SYSTEM

62 9536-5107 ELECTRONIC PRESSURE GAUGE

63 8666-5533 COMPLETE SAFETY VALVE

64 8666-5534 COMPLETE SAFETY THERMOSTAT

65 9536-2442 SCREW-IN TEMPERATURE SENSOR

Ref. Code No. DESCRIPTION Ref. Code No. DESCRIPTION

6/7

CITY 1.24 and 2.24

66 9536-2443 FUMES SENSOR

2 SERVICES ONLY

67 8666-5535 COMPLETE FLOWRATE DETECTOR

68 9536-2440 CLIP-ON DOMESTIC HOT WATER OUTLET SENSOR

69 8666-7218KIT DOMESTIC HOT WATER FLOW RATE

CONTROLLER (10 L/MN)

BOILER CASING

70 8666-8540 CASING ASSEMBLY FLUE-LINER

71 8666-8549 COMPLETE LEFT SIDE PANEL

72 8666-8550 COMPLETE RIGHT SIDE PANEL

73 8666-8551 FRONT PANEL ASSEMBLY FLUE LINER

8666-5536 BOILER SCREW FASTENERS PACK

CONTROL PANEL

75 8666-8564 COMPLETE 1.24 NG CONTROL PANEL HO

75 8666-8565 COMPLETE 1.24 B/P CONTROL PANEL HO

75 8666-8566 COMPLETE 2.24 NG CONTROL PANEL HO

75 8666-8567 COMPLETE 2.24 B/P CONTROL PANEL HO

76 9752-5362 PRE-ASSEMBLED PANEL

77 9655-9151 FRONT PANEL PLATE

78 8666-5544 COMPLETE CARD SUPPORT

79 8666-5545 COMPLETE REAR COVER

80 9752-5312 CONNECTOR COVER

81 8666-5546 COMPLETE PRE-ASSEMBLED FLAP

82 9655-9150 FLAP PLATE

83 8666-5547 CONTROL BUTTON KIT

8666-5548 PANEL ACCESSORY KIT

85 8806-5512 COMPLETE DISPLAY CARD

86 8806-5511 CPL WALL-MOUNT CENTRAL UNIT CARD

87 8666-5549 COMPLETE CHEM SAFETY CARD

88 9654-7000 4 A FUSE

91 8666-5582 COMPLETE ANSTOSS IGNITER

92 8666-5583 COMPLETE IGNITER SUPPORT

93 8666-5584 COMPLETE IGNITER COVER

8666-4926 ASSEMBLED 2-PIN CONNECTOR

WIRING HARNESSES

8666-4922 MAIN SUPPLY CABLE

8666-4923 PUMP CABLE

8666-4925 IONISATION SENSOR CABLE

8666-4924 UC-CS BUS CONNECTION CABLE

8666-4929 EARTH WIRE

8666-4930 2.24 BASIC HARNESS CH.HO

8666-4932 1.24 BASIC HARNESS CH.HO

8666-4934 HONEYWELL CABLE CONNECTOR

BACKPLATE

101 8666-1517 ASSEMBLE BACKPLATE

102 8666-0543 BACKPLATE HEIGHT EXTENSION

1 SERVICE

105 8666-8506 COMPLETE 1.24 CONNECTOR PANEL

106 8666-5551 UNEQUIPPED CONNECTOR PANEL PLUS FIXINGS

107 8666-5552 COMPLETE CENTRAL HEATING OUTLET VALVE

108 8666-5553 COMPLETE DOMESTIC HOT WATER OUTLET VALVE

109 8666-5554 COMPLETE GAS VALVE

110 8666-5555 CPL CENTRAL HEATING RETURN VALVE

111 8666-5558 COMPLETE BYPASS CONNECTING PIPE

112 8666-5562 161 MM CONNECTING PIPE KIT

113 8666-5575 231 MM CONNECTING PIPE KIT

114 8666-5574 COMPLETE FILLER TUBE

128 8666-5564 COMPLETE EVACUATION CONNECTOR

129 8666-5587 PIECES FOR CONNECTION

2 SERVICES

115 8666-8507 COMPLETE 2.24 CONNECTOR PANEL

116 8666-5551 UNEQUIPPED CONNECTOR PANEL PLUS FIXINGS

117 8666-5552 CPL CENTRAL HEATING OUTLET VALVE

118 8666-5553 CPL DOMESTIC HOT WATER OUTLET VALVE

119 8666-5554 COMPLETE GAS VALVE

120 8666-5555 COMPLETE CENTRAL HEATING RETURN VALVE

121 8666-5556 COMPLETE COLD WATER INLET VALVE

121a 8666-5570 D. C. W. ADJUSTER SCREW + VALVE FILTER

122 8666-5557 COMPLETE DISCONNECTOR

123 8666-5558 COMPLETE BYPASS CONNECTING PIPE

124 8666-5559 CPL DISCONNECTOR DOWNSTREAM CON. PIPE

125 8666-5560 CPL DISCONNECTOR UPSTREAM CONNECTOR PIPE

126 8666-5561 COMPLETE DISCONNECTOR FLOW PIPE

127 8666-5563 COMPLETE 2.24 CONNECTOR PIPE KIT

128 8666-5564 COMPLETE EVACUATION CONNECTOR

SUNDRY

8666-5565 PANEL SEAL PACK

8666-5566 BACKPLATE FIXINGS PACK

8666-5567 BOILER SEALS PACK

9731-0700 O-RING GREASE

Ref. Code No. DESCRIPTION Ref. Code No. DESCRIPTION

11/007/7

37

Thank you for purchasing a DE DIETRICH appliance,and for the confidence in us that your purchasedemonstrates.

We would like to point out to you that the device willretain its original qualities only if it checked and main-tained regularly.

Your installer and the entire DE DIETRICH networkare naturally ready, willing and able to assist you.

Warranty conditions

Your device is warranted against all manufacturingdefects from the date of purchase for a period of 2years.

We shall not be liable as manufacturer in the event ofincorrect use of the device, lack of or insufficient main-tenance of the device or incorrect installation of thedevice (you are responsible for assuring that the boi-ler is installed by a professional installer). In particularwe shall not be liable for damage, losses or injuryconsequent upon installation that does not conform to:

- applicable laws and regulations,- specific requirements relating to the installation,- our manuals and instructions.

Our warranty is limited to exchange or repair of partsagreed to be defective by our technical departmentand excludes labour, travel and transportation costs.

Our warranty does not cover replacement or repair ofparts required because of normal wear and tear, incor-rect use, work carried out by unqualified third parties,lack of or insufficient supervision or maintenance,non-standard electrical output supply and use of inap-propriate or poor quality fuel.The warranty covers sub-assemblies such as motors,pumps, solenoid valves, etc. only if they have neverbeen removed from the boiler.

15. WARRANTY

38

Notes

39

Notes

In the interest of customers, DE DIETRICH THERMIQUE are continuously endeavouring to make improvements in product quality.All the specifications stated in this document are therefore subject to change without notice.

Servicing company :Fitter :

BP 30 - 57, rue de la GareF-67580 MERTZWILLER

+ 33/3 88 80 27 00 - Fax : + 33/3 88 80 27 99N° IRC : 347 555 559 RCS STRASBOURG

AD

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