installer manual - nibe · installer manual lek axc 30 accessories ihb gb 1346-1 231464. table of...

Installer manualLEK

AXC 30Accessories

IHB GB 1346-1231464

Table of Contents1 General 2

Contents 2

Component positions 2

2 Common electrical connection 3Connecting communication 3

Connecting the supply 3

3 Shunt controlled additional heat 4General 4

Pipe connections 4

Outline diagram 5

Electrical connection 6

Program settings 7

Electrical circuit diagram 8

4 Step controlled additional heat 9General 9

Pipe connections 9

Outline diagram 10


Program settings 12


5 Extra climate system 14General 14

Pipe connections 14

Outline diagram 15


Program settings 17


6 Hot water comfort 19General 19

Pipe connections 19

Outline diagram 20


Program settings 22


7 Active cooling (4-pipe) 24General 24

Pipe connections 24

Outline diagram 25


Program settings 27

Wiring diagram 28

8 Connection of several heatpumps 29General 29

Pipe connections 29

Outline diagram 30


Program settings 32


1Table of Contents |AXC 30

This accessory is used to enable connection and controlof (a AXC 30 is required for each of the following ac-cessory functions that is used):Shunt controlled additional heatStep controlled additional heatExtra climate systemHot water comfortActive cooling (4-pipe)Connection of several heat pumps

ContentsCable ties4 x

Heating pipe paste2 x

Insulation tape1 x

Unit box with accessory card1 x

Aluminium tape2 x

Temperature sensor2 x

Component positions

LEK

AA5-X4

AA5-S2

AA5-X2 AA5-X9 X1

FA1

AA5-F1AA5

Electrical componentsMiniature circuit-breaker. 10AFA1Terminal block, power supplyX1Accessory cardAA5Terminal block, sensors and externalblocking

AA5-X2

Terminal block, communicationAA5-X4Terminal block, circulation pump, mixingvalve and auxiliary relay

AA5-X9

DIP switchAA5-S2Fine wire fuse, T4AH250VAA5-F1

Designations in component locations according tostandard IEC 81346-1 and 81346-2.

AXC 30Chapter 1 | General2

1 General

NOTE

All electrical connections must be carried outby an authorised electrician.

Electrical installation and wiring must be car-ried out in accordancewith the stipulations inforce.

The heat pump must not be powered wheninstalling AXC 30.

Electrical circuit diagrams are at the end of the chapterfor each connection option.

Connecting communicationControl moduleSMO 40 contains an accessory card (AA5) which isconnected for communication.

If several accessories are to be connectedor are alreadyinstalled, the following instructions must be followed.

The first external accessory card must be connecteddirectly to terminal blockAA5-X4 in the controlmodule.The following cards must be connected in series withthe previous card.

Use cable type LiYY, EKKX or similar.

1

2

3

4

5

6

7

8

AA5-X4

4

A

B

GND

A

B

GND

A

B

GND

A

B

GND

A

B

GND

5

6

AA5-X4

1

2

3

4

5

6

7

8

AA5-X4

SMO 40

Tillbehörskort 1

Tillbehörskort 2

ON1

23

45

67

8

-X9

-X2

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1

N

L

PE

PE

1

2

3

4

5

6

7

8

2

3

4

5

6

7

8

9234

-X8

-X4

-X10

-X1

AA5-X4

ON1

23

45

67

8

-X9

-X2

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1

N

L

PE

PE

1

2

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5

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2

3

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5

6

7

8

9234

-X8

-X4

-X10

-X1

AA5-X4

EB15

AA5-X4

L N 1 1 0 2 3 4PE

1 2 3 4

LEK

ON

12345678

-X9

-X2

24

20

21

22

23

15

16

17

18

19

10

11

12

13

14

5

6

7

8

9

1

1NLPEPE

12345678

2 3 4 5 6 7 8 9

2

3

4

-X8

-X4

-X10-X1

Connecting the supplyConnect the power supply to terminal block X1 as illus-trated.

3

2

1 N230V 50Hz-X1

LPE

3Chapter 2 | Common electrical connectionAXC 30

2 Common electrical connection

GeneralThis function enables an external additional heater,e.g. anoil boiler, gas boiler or district heatingexchangerto aid with heating.

The indoor module controls a shunt valve and a circu-lation pump (GP10) via the accessory card in AXC 30.If the heat pump does notmanage to keep the correctsupply temperature (BT25), the addition starts. Whenthe boiler temperature of (BT52) has been increasedto about 55 °C, the indoor module transmits a signalto the shunt (QN11) to open from the addition. Theshunt (QN11) adjusts so the true supply temperaturecorresponds with the indoor module's theoretical cal-culated set point value. When the heating demanddrops sufficiently so the additional heat is no longerrequired the shunt (QN11) closes completely. Factoryset minimum run time holding the boiler prepared is12 hours (can be set in menu 5.3.2).

Pipe connectionsThe external circulation pump (GP10) is positioned ac-cording to the outline diagram.

Shunt valveThe shunt valve (QN11) is located on the flow line tothe climate system after the heat pump according tothe outline diagram.

AB

B

AConnect the flow line from theheatpump to the external heat sourcevia the T-pipe to port B on the shuntvalve (closes at reduced signal).Connect the flow line to the climatesystem from the shunt valve to thecommon port AB (always open)Connect the flow line from the external additionalheat to the shunt valve to port A (opens at increasedsignal).

Temperature sensorInstall the boiler sensor (BT52) in a suitable locationin the external addition.External supply temperature sensor (BT25, connectedin the indoor module's control module) must be in-stalled on the supply line to the radiators, after theshunt valve (QN11).

K

Install the temperature sensorswith cable tieswith theheat conductingpaste and aluminium tape. Then insu-late with supplied insulation tape.

NOTE

Sensor and communication cables must notbe placed near power cables.

AXC 30Chapter 3 | Shunt controlled additional heat4

3 Shunt controlled additional heat

Outline diagramExplanation

Shunt controlled additional heat, boilerEM1Accessory card (AXC 30)AA5Temperature sensor, boilerBT52Expansion vessel, closedCM5Oil/gas boilerEM1Safety valve, heating medium sideFL10Mixing valve, additionQN11Heat pump systemEB101, EB102Temperature sensor, returnBT3Temperature sensor, condenser outBT12Heat pumpEB101, EB102Safety valveFL10Charge pumpGP12Particle filterHQ1Tapping valveQM1Shut-off valveQM31 -QM32Shut-off valveQM43Non-return valveRM11

Miscel-laneous

SMO 40AA25Outdoor sensorBT1Temperature sensor, hot water chargingBT6Temperature sensor, hot water, topBT7Temperature sensor, heatingmedium flow,External

BT25

Temperature sensor, heating medium re-turn, External

BT71

Hot water heaterCP10, CP11Buffer vessel, UKVCP20Expansion vessel, closed, brine sideCM1Safety valveFL2Circulationpump,heatingmediumexternalGP10Reversing valve, hot waterQN10Trim valveRN60 - RN63

Designations according to standards 81346-1 and81346-2.

Outline diagram SMO 40 with AXC 30 and shunt controlled additional heat

-AA25-BT71

-AA25-BT25

-CM1

-FL2

-EB101

-QM1

-BT3

-BT12 -QM31

-QM32 -QM43-GP12

-EB101

-HQ1

-AA25

-FL10

-RM11

-BT1-AA25

-CP10

-AA25-BT6

-AA25-BT7

-RN63

-RN62

-CP11

-RN60

-RN61

-QN11

-BT52

-AA25

-CM5

-FL10

-EM1

-EM1

-CP20

-AA25-GP10

-RM11-EB102

-QM1

-BT3

-BT12 -QM31

-QM32 -QM43-GP12

-EB102

-HQ1-FL10

-AA25-QN10

5Chapter 3 | Shunt controlled additional heatAXC 30

Electrical connection

ON1

23

45

67

8

-X9

-X2

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1

N

L

PE

PE

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2

3

4

5

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8

2

3

4

5

6

7

8

9234

-X8

-X4

-X10

-X1

NOTE



SMO40must not bepoweredwhen installingAXC 30.

Connectionof sensors and external blockingUse cable type LiYY, EKKX or similar.

Boiler sensor (BT52)

Connect the boiler sensor to AA5-X2:23-24.

External blocking (optional)

A contact (NO) can be connected to AA5-X2:21-22 toblock the addition.When the contact closes, the addi-tion is blocked.

24 20212223 1516171819 1314

Caution

The relay outputs on the accessory card canhave a max load of 2 A (230 V) in total.

Connection of the circulation pump (GP10)Connect the circulationpump (GP10) toAA5-X9:8 (230V), AA5-X9:7 (N) and X1:3 (PE)

1

2

3

4

5

6

7

8

9

L

N

PE

3

2

1

Connection of the mixing valve motor(QN11)Connect the mixing valve motor (QN11) to AA5-X9:6(230 V, open), AA5-X9:5 (N) and AA5-X9:4 (230 V,close).

1

2

3

4

5

6

7

8

9

Connectionof theauxiliary relay for addition-al heatingConnect the auxiliary relay for switching the additionon and off to AA5-X9:2 (230 V) and AA5-X9:3 (N).

1

2

3

4

L

N

A1 A2

External auxiliary relay

AdditionalHeating


DIP switchThe DIP switch on the accessory card must be set asfollows.

ON1

23

45

67

8

ON1

23

45

67

8

-X9

-X2

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1

N

L

PE

PE

1

2

3

4

5

6

7

8

2

3

4

5

6

7

8

9234

-X8

-X4

-X10

-X1

Program settingsProgram setting of AXC 30 can be performed via thestart guide or directly in the menu system.

Start guideThe start guide appears upon first start-up after heatpump installation, but is also found in menu 5.7.

Menu systemIf you do not make all settings via the start guide orneed to change any of the settings, this can be donein the menu system.

Menu 5.2 - system settings

Activating/deactivating of accessories.

Select: "shunt controlled add. heat".

Menu 5.3.2 - shunt controlled add. heat

Here you can perform the following settings:Select when the addition is to start.Minimum running time.Minimumboiler temperature atwhich the shunt canstart control.Misc. shunt settings.

Menu 5.6 - forced control

Forced control of the different components in indoormodule as well as in the different accessories thatmaybe connected.

EM1-AA5-K1: Activating the relay for additional heat-ing.

EM1-AA5-K2: Signal (close) to mixing valve (QN11).

EM1-AA5-K3: Signal (open) to mixing valve (QN11).

EM1-AA5-K4: Activating the circulation pump (GP10).

Caution

Also see the Installer manual for SMO 40.

7Chapter 3 | Shunt controlled additional heatAXC 30

Electrical circuit diagram


GeneralThis function enables an external additional heater,e.g. an electric boiler, to aid with heating.

With the accessory card in AXC 30 a further three po-tential free relays can be used for addition control,which then gives max 3 linear or 7 binary steps.

The flow through the addition is ensured either by thecharge pump (GP12) or the external circulation pump(GP10).

Pipe connectionsTheextra circulationpump (GP10) is positionedaccord-ing to the outline diagram.

Temperature sensor

K


NOTE


9Chapter 4 | Step controlled additional heatAXC 30

4 Step controlled additional heat


Step controlled additional heatEB1Accessory card in (AXC 30)AA5Expansion vessel, closedCM5External electrical additional heatEB1Safety valve, heating medium sideFL10Shut-off valve, heating medium sideQM42 -QM43Trim valveRN11Heat pump systemEB101, EB102Temperature sensor, returnBT3Temperature sensor, condenser outBT12Heat pumpEB101, EB102Safety valve, heating medium sideFL10Charge pumpGP12Particle filterHQ1Tapping valveQM1Shut-off valveQM31 -QM32Shut-off valveQM43Non-return valveRM11

Miscel-laneous

SMO 40AA25Outdoor sensorBT1Temperature sensor, hot water chargingBT6Temperature, hot water topBT7Temperature sensor, heatingmedium flow,External

BT25


BT71

Hot water heaterCP10 - CP11Buffer vessel, UKVCP20Expansion vessel, closedCM1Safety valveFL2Circulationpump,heatingmediumexternalGP10Reversing valve, hot waterQN10Trim valveRN60 - RN61

Designations according to standards 81346-1 and81346-2.

Outline diagram SMO 40 with AXC 30 and step controlled additional heat

-AA25-BT71

-AA25-BT25

-CM1

-FL2

-EB101

-QM1

-BT3

-BT12 -QM31

-QM32 -QM43-GP12

-AA25-EB101

-HQ1

-AA25

-FL10

-RM11

-BT1-AA25

-CP10

-AA25-BT6

-AA25-BT7

-RN63

-RN62

-CP11

-RN60

-RN61

-CM5 -FL10

-QM42

-QM43 -RN11

-EB1

-EB1

-AA25

-CP20

-AA25-GP10

-RM11-EB102

-QM1

-BT3

-BT12 -QM31

-QM32 -QM43-GP12

-AA25-EB102

-HQ1-FL10

-AA25-QN10

AXC 30Chapter 4 | Step controlled additional heat10


ON1

23

45

67

8

-X9

-X2

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1

N

L

PE

PE

1

2

3

4

5

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8

2

3

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8

9234

-X8

-X4

-X10

-X1

NOTE




Connecting external blockingUse cable type LiYY, EKKX or similar.


A contact (NO) can be connected to AA5-X2:23-24 toblock the addition.When the contact closes, the addi-tion is blocked.

24 20212223 1516171819 1314

Caution


Connection of the circulation pump (GP10)Connect the circulationpump (GP10) toAA5-X9:8 (230V), AA5-X9:7 (N) and X1:3 (PE)

1

2

3

4

5

6

7

8

9

L

N

PE

3

2

1

Connecting additional stepConnect step 1 to AA5-X9:1 and 2.

Connect step 2 to AA5-X9:3 and 4.

Connect step 3 to AA5-X9:5 and 6.

1

2

3

4

5

6

7

8

9

A1 A2

A1 A2

A1 A2

STEG 1

STEG 2

STEG 3


ON1

23

45

67

8

ON1

23

45

67

8

-X9

-X2

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N

L

PE

PE

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2

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8

9234

-X8

-X4

-X10

-X1





Menu 5.2 - system settings


Select: "step controlled add. heat".

Menu 5.3.6 - step controlled add. heatAXC30

Here you can perform the following settings:Select when the addition is to start.Set max permitted number of additional steps.If binary stepping is to be used.


Forced control of thedifferent components in theheatpump as well as in the different accessories that maybe connected.

EB1-AA5-K1: Activating additional step 1.



EB1-AA5-K4: Activating the circulation pump (GP10).

Caution


AXC 30Chapter 4 | Step controlled additional heat12

GeneralThis accessory function is usedwhenSMO40 is installedin houseswith up to four different climate systems thatrequire different flow line temperatures, for example,in cases where the house has both a radiator systemand an under floor heating system.

Caution

Underfloor heating systems are normally maxflow line temperature set between35and45°C.

Check themax temperature for your floorwithyour floor supplier.

Caution

If the roomsensor is used in a roomwithunderfloor heating it should only have an indicatoryfunction, not control of the roomtemperature.

Pipe connectionsGeneralWhen connecting extra climate systems, they must beconnected so that they have a lower working temper-ature than the climate system 1.

Circulation pumpThe extra circulation pump (GP20) is positioned in theextra climate systemaccording to the outline diagram.

Shunt valveThe mixing valve (QN25) is located on the flow lineafter the heat pump/indoor module, before the firstradiator in the climate system 1. The return line fromthe additional climate systemmust be connected tothe shunt valve and to the return line from the heatingsystem 1, see image and outline diagram.

B

A

ABConnect the flow line to the climate sys-tem from the heat pump to port A on theshunt valve (opens at increased signal)Connect the return line from the climatesystem toport B on the shunt valve via theT-pipe to (closes at reduced signal).Connect the flow line to the climate sys-tem to the common port AB on the shuntvalve (always open).

Temperature sensorThe flow temperature sensor (BT2) is installed on thepipe between the circulation pump (GP20) andmix-ing valve (QN25).The return line sensor (BT3) is installed on the pipefrom the extra climate system.

K


NOTE


AXC 30Chapter 5 | Extra climate system14

5 Extra climate system


External additional heatEB1Expansion vessel, closedCM5External electrical additional heatEB1Safety valve, heating medium sideFL10Shut-off valve, heating medium sideQM42 -QM43Trim valveRN11Heat pump systemEB101, EB102Temperature sensor, returnBT3Temperature sensor, condenser outBT12Heat pumpEB101, EB102Safety valve, heating medium sideFL10Charge pumpGP12Particle filterHQ1Tapping valveQM1Shut-off valveQM31 -QM32Shut-off valveQM43Non-return valveRM11Climate system 2EP21Accessory card SMO 40AA5Flow temperature sensor, extra climatesystem

BT2

Return line sensor, extra climate systemBT3Circulation pump, extra climate systemGP20Shunt valveQN25

Miscel-laneous


BT25


BT71



Outline diagram SMO40 med AXC 30 and up to three extra climate systems

-AA25-BT71

-AA25-BT25

-CM1

-FL2-QM1

-BT3

-BT12 -QM31

-QM32 -QM43-GP12

-EB101

-HQ1

-AA25

-FL10

-RM11

-BT1-AA25

-CP10

-AA25-BT6

-AA25-BT7

-RN63

-RN62

-CP11

-RN60

-RN61

-BT3

-BT2

-EP21

-GP20

-QN25

-AA25

-GP20

-BT3

-BT2

-EP23

-QN25

-AA25

-GP20

-BT3

-BT2

-EP22

-QN25

-AA25-CM5 -FL10

-QM42

-QM43-RN11

-EB1

-EB1

-AA25

-CP20

-AA25-GP10

-RM11-EB102

-QM1

-BT3

-BT12 -QM31

-QM32 -QM43-GP12

-EB102

-HQ1-FL10

-AA25-QN10

2013-08-29 /DG

15Chapter 5 | Extra climate systemAXC 30


ON1

23

45

67

8

-X9

-X2

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N

L

PE

PE

1

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3

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8

2

3

4

5

6

7

8

9234

-X8

-X4

-X10

-X1

NOTE




Connection of sensors and external adjust-mentUse cable type LiYY, EKKX or similar.

Flow temperature sensor, extra climate system(BT2)

Connect the flow temperature sensor toAA5-X2:23-24.

Return line sensor, extra climate system (BT3)

Connect the return line sensor to AA5-X2:21-22.

Room temperature sensor, extra climate system(BT50) (optional)

Connect the room temperature sensor to AA5-X2:19-20.

External adjustment (optional)

A potential free switch can be connected to AA5-X2:17-18 for external adjustmentof the climate system.

24 20212223 16171819

Caution


Connection of the circulation pump (GP20)Connect the circulationpump (GP20) toAA5-X9:8 (230V), AA5-X9:7 (N) and X1:3(PE).

1

2

3

4

5

6

7

8

9

L

N

PE

3

2

1

Connection of the mixing valve motor(QN25)Connect the mixing valve motor (QN25) to AA5-X9:6(230 V, open), AA5-X9:5 (N) and AA5-X9:4 (230 V,close).

1

2

3

4

5

6

7

8

9



ON1

23

45

67

8

-X9

-X2

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1

N

L

PE

PE

1

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3

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5

6

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8

2

3

4

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8

9234

-X8

-X4

-X10

-X1

AA5-S2

Climate system

432

ON1

23

45

67

8

ON1

23

45

67

8

ON1

23

45

67

8


Start guideThe start guide appears upon first start-up after heatpump/indoor module installation, but is also found inmenu 5.7.


Menu 5.2.4 - accessories


Select: "climate system 2", "climate system 3" and/or"climate system 4" depending on howmany climatesystems are installed.

Menu 5.1.2 - max flow line temperature

Setting the maximum flow temperature for each cli-mate system.

Menu 5.3.3 - extra climate system

Mixing valve settings for extra installed climate system.

Menu 1.1 - temperature

Setting the indoor temperature.

Menu 1.9.1 - heating curve

Setting the heat curve.

Menu 1.9.2 - external adjustment

Setting external adjustment.

Menu 1.9.3 - min. flow line temp.

Setting theminimumflowtemperature for eachclimatesystem.

Menu 1.9.4 - room sensor settings

Activating and setting the room temperature sensor.


Forced control of thedifferent components in theheatpump as well as in the different accessories that maybe connected. 2 is climate system, EP22, 3 is climatesystem EP23, 4 is climate system EP21.

EP2#-AA5-K1: No function.

EP2#-AA5-K2: Signal (close) to mixing valve (QN25).

EP2#-AA5-K3: Signal (open) to mixing valve (QN25).

EP2#-AA5-K4: Activating the circulation pump (GP20).

Caution

Also see the Installermanual for relevant heatpump/indoor module.

17Chapter 5 | Extra climate systemAXC 30

GeneralThis function allows temporary lux, mixing valve andhot water circulation.

Temporary lux (extra hot water)If an immersion heater is installed in the tank it can bepermitted to produce hot water, at the same time asthe heat pump prioritises heating.

Mixing valveA temperature sensor reads the temperature of theoutgoing hot water to the domestic hot water andadjusts the mixing valve from the water heater untilthe set temperature has been reached.

Hot water circulation (VVC)One pump can be controlled for the circulation of thehot water during selectable periods.

Pipe connectionsMixing valveThe mixing valve (FQ1) is located on the outgoing hotwater line from the water heater according to theoutline diagram.

AB

A

BConnect the incoming cold watervia the T-pipe to the port B on themixing valve (closes at signal).Connect the mixed water to thedomestic hot water taps from themixing valve to the common portAB (always open).Connect the outgoing hot water from the waterheater to themixing valve to port A (opens on signal)

Temperature sensorTemperature sensor, outgoing hot water, (BT70) in-stalled in a suitable place after themixing valve (FQ1).

K


NOTE


19Chapter 6 | Hot water comfortAXC 30

6 Hot water comfort


External additional heatEB1Expansion vessel, closedCM5External electrical additional heatEB1Safety valve, heating medium sideFL10Shut-off valve, heating medium sideQM42 -QM43Trim valveRN11Heat pump systemEB101, EB102Temperature sensor, returnBT3Temperature sensor, condenser outBT12Heat pumpEB101, EB102Safety valve, heating medium sideFL10Charge pumpGP12Particle filterHQ1Tapping valveQM1Shut-off valveQM31 -QM32Shut-off valveQM43Non-return valveRM11Hot water comfortQZ1Accessory card AXC 30AA5

Temperature sensor, outgoing hot waterBT70Additional water heaterEB10Circulation pump, domestic hot water cir-culation

GP11

Non-return valveRM23Trim valveRN20

Miscel-laneous


BT25


BT71


Outline diagram SMO40 with AXC 30 and hot water comfort

-AA25-BT71

-AA25-BT25

-CM1

-FL2

-EB101

-QM1

-BT3

-BT12 -QM31

-QM32 -QM43-GP12

-EB101

-HQ1

-AA25

-FL10

-RM11

-BT1-AA25

-CP10

-AA25-BT6

-AA25-BT7

-RN63

-RN62

-CP11

-RN60

-RN61

-EB10

-QZ1-GP11

-RN20

-RM23

-EB10

-FQ1 -BT70

-AA25

-CM5 -FL10

-QM42

-QM43 -RN11

-EB1

-EB1

-CP20

-AA25-GP10

-RM11-EB102

-QM1

-BT3

-BT12 -QM31

-QM32 -QM43-GP12

-EB102

-HQ1-FL10

-AA25-QN10

AXC 30Chapter 6 | Hot water comfort20


ON1

23

45

67

8

-X9

-X2

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1

N

L

PE

PE

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9234

-X8

-X4

-X10

-X1

NOTE




Connecting sensorsUse cable type LiYY, EKKX or similar.

How water sensor, flow line (BT70)

Connect hot water sensor to AA5-X2:23-24.

24 20212223 1516171819 1314

Caution


Connection of the hot water circulationpump (GP11)Connect the circulationpump (GP11) toAA5-X9:8 (230V), AA5-X9:7 (N) and X1:3 (PE)

1

2

3

4

5

6

7

8

9

L

N

PE

3

2

1

Unit box External

GP11

AA5-X9 X1

Connection of the mixing valve (FQ1)Connect the mixing valve motor (FQ1) to AA5-X9:6(230 V, open), AA5-X9:5 (N) and AA5-X9:4 (230 V,close).

1

2

3

4

5

6

7

8

9

Connecting auxiliary relay for temporary lux(extra hot water)Connect the auxiliary relay for switching the additionon and off to AA5-X9:1 (N) and AA5-X9:2 (230 V).

1

2

3

4

L

N

A2 A1

External auxiliary relay

AdditionalHot water



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Select: "hot water comfort".

Menu 2.9.2 - hot water recirc.

Here you canmake the following settings for hotwatercirculation for up to three periods per day:How long the hot water circulation pump must runper operating instanceHow long the hot water circulation pump must bestationary between operating instances.

Menu 5.3.8 - hot water comfort

Here you can perform the following settings:If an immersion heater is installed in the tank andwhether it can be permitted to charge hot water ifthe compressors in the heat pumpprioritise heating.Whether amixing valve for limiting the temperatureof hot water from the water heater is installed.Various shunt settings and outgoing hot water tem-perature from the tank for the mixing valve.



QZ1-AA5-K1: Activating the relay for extra hot water.

QZ1-AA5-K2: Signal (close) to the mixing valve (FQ1).

QZ1-AA5-K3: Signal (open) to the mixing valve (FQ1).

QZ1-AA5-K4: Activating the circulation pump (GP11).

Caution


AXC 30Chapter 6 | Hot water comfort22

GeneralConnecting this accessory makes it possible to controlproduction of cooling.

The cooling system supplies cooling from the heatpump using a circulation pump (GP12) via a reversingvalve (QN12).

For the installation to work the cooling systemmustflow freely permanently, for example using a volumevessel for cooling.

Operating mode cooling is activated by the temperat-ure of the outdoor sensor (BT1) and any room temper-ature sensors (BT50), room units or separate roomsensors for cooling (BT74) (if two different rooms areto be heated respectively cooled at the same time forexample.)

When cooling is required, the cooling reversing valve(QN12) and the circulationpump (GP13) are activated.

Cooling production is regulated according to thecooling sensor (BT64) anda cooling set point value thatis determined by the selected cooling curve.

Cooling degree minutes are calculated in response tothe value on the external temperature sensor (BT64)for cooling out and the cooling set point value.

As an accessory, cooling reversing valve is required, e.g.VCC22/VCC28.

Pipe connectionsGeneralPipes and other cold surfaces must be insulated withdiffusion-proof material to prevent condensation.

Where the coolingdemand is high, fan convectorswithdrip trays and drain connection are needed.

Reversing valve, cooling/heatingThe reversing valve (QN12) is located in the system onthe supply line from the heat pump

AB

B A

Temperature sensorTemperature sensor (BT64) is mounted on the supplyline to the cooling system at the T-pipe connection tothe volume vessel (CP21).

K


NOTE


AXC 30Chapter 7 | Active cooling (4-pipe)24

7 Active cooling (4-pipe)


Cooling systemEQ1Accessory card in AXC 30AA25-AA5Temperature sensor, flow line coolingBT64Accumulator tank, coolingCP6Cooling circulation pumpGP13Heat pump systemEB101Temperature sensor, returnBT3Temperature sensor, condenser supplyBT12

Charge pumpGP12Heat pumpEB101Safety valve, heating medium sideFL10Particle filterHQ1Tapping valveQM1Shut-off valveQM31-

QM32Shut-off valveQM43Trim valveRM11


Outline diagram SMO40 with AXC 30 and active cooling (4-pipe)

-EB101

-QM1

-BT3

-BT12 -QM31

-QM32 -QM43-GP12

-EB101

-HQ1

-BT1

-AA25

-FL2

-AA25-QN10

-BT50

-GP13

-CP6

-BT64

-EQ1-QN12

-EQ1-AA25

25Chapter 7 | Active cooling (4-pipe)AXC 30


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NOTE





Temperature sensor (BT64)

Connect the sensor to AA5-X2:19-20.

Temperature sensor (roomsensor for cooling, BT74)

Anextra temperature sensor (room sensor for cooling)canbe connected to SMO40 inorder to better determ-ine when it is time to switch between heating andcooling operation.

Connect the temperature sensor to one of the AUXinputs X6:7-19 on terminal block X6which are behindthe front hatch in SMO 40. The actual AUX input is se-lected in menu 5.4. Connect ground to terminal blockX6:GND. Use a 2 core cable of at least 0.5 mm2 cablearea.

Place the temperature sensor in a neutral position inthe room where the set temperature is required. It isimportant that the sensor is not obstructed frommeasuring the correct room temperature by beinglocated, for example, in a recess, between shelves, be-hind a curtain, above or close to a heat source, in adraft fromanexternal door or in direct sunlight. Closedradiator thermostats can also cause problems.

Room sensor (BT50)

To connect the roomsensor (BT50), see the Installationmanual for SMO 40.


A contact can be connected to AA5-X2:21-22 to blockcooling operation. When the contact closes, coolingoperation is blocked.

24 20212223 1516171819 1314

Extern blockering

AA5-X2

BT64

Caution


Connection of the cooling circulation pump(GP13)Connect the circulationpump (GP13) toAA5-X9:6 (230V), AA5-X9:5 (N) and X1:3 (PE)

0 32PE

1

2

3

4

5

6

7

8

9

AXC 30 Externt

AA5-X9

X1

GP13

Connecting the charge pump (GP12)Do not connect charge pump GP12 to the accessorycard. See Installationmanual to connect charge pumpGP12.


Connection of the reversing valve motor(QN12)Connect the motor (QN12) to AA5-X9:2 (signal), AA5-X9:1 (N) and AA5-X10:2 (230 V).

-X10

1

2

3

4

5

6

7

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9

AXC 30 Externt

AA5-X9

AA5-X10

QN12Svart

Blå

Brun


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AA5-S2






Select: "active cooling 4 pipe".

Menu 1.1 - temperature

Setting indoor temperature (room temperature sensoris required).

Menu 1.9.5 - cooling settings

Here you can perform the following settings:Lowest flow line temperature when cooling.Desired flow temperature at an outdoor air temper-ature of +20 and +40 °C.Time between cooling and heating operation andvice versa.Selection of room sensor can control cooling.Howmuch the room temperature may decrease orincrease compared to thedesired temperaturebeforeswitching to heating respectively cooling (requiresroom sensor).Degree minute levels for cooling.

Menu 4.9.2 - auto mode setting

When heat pump operating mode is set to "auto“ itselects when start and stop of additional heat, heatproduction and cooling is permitted, dependent onthe average outdoor temperature.

Select theaverageoutdoor temperatures in thismenu.

You can also set the time over which (filtering time)the average temperature is calculated. If you select 0,the present outdoor temperature is used.



EQ1-AA5-K1: Signal to three way valve (QN12).

EQ1-AA5-K3: Signal cooling circulation pump (GP13).

Caution

Also see the Operating manual for SMO 40.

27Chapter 7 | Active cooling (4-pipe)AXC 30

Wiring diagram


GeneralThis function allows control of up to two extra chargepumpsGP12. Theaccessory is required for chargepumpfor slave - EB10Xwith address 3 or greater. Up to eightslaves can be combined in one system.

The controlmodule controls the chargepumps togeth-er with the relevant slave during heating, hot water,or coolingoperation viaAXC30TypeCPDchargepumpis recommended to use speed control which ensurescorrect delta-t in the different operatingmodes duringthe year. The accessory also enables external blockingof each corresponding slave.

Pipe connectionsThe charge pump (GP12) is positioned in the relevantcharge circuit before joiningwith other charge circuitsor branching off different sub systems via reversingvalve.

29Chapter 8 | Connection of several heat pumpsAXC 30

8 Connection of several heat pumps


Heat pump systemEB101-EB105

Temperature sensorBT3Temperature sensorBT12Heat pumpEB100-

EB105Safety valveFL10Charge pumpGP12Particle filterHQ1

Shut-off valveQM31 -QM32

Shut-off valveQM43Reversing valve, heating/hot waterQN10Non-return valveRM11MiscellaneousAccessory card (AXC 30)AA5Temperature sensorBT1Expansion vessel, closedCM1Safety valveFL2


Outline diagram SMO40 with AXC 30and connecting several heat pumps

-EB105-AA25

-EB105

-QM1

-BT3

-BT12 -QM31

-QM32 -QM43-GP12

-EB105

-HQ1-FL10

-RM11

-CM1

-FL2

-EB101

-QM1

-BT3

-BT12 -QM31

-QM32 -QM43-GP12

-EB101

-HQ1

-AA25

-FL10

-RM11

-BT1

-AA25

-RM11-EB102

-QM1

-BT3

-BT12 -QM31

-QM32 -QM43-GP12

-EB102

-HQ1-FL10

-EB103-AA25

-EB103

-QM1

-BT3

-BT12 -QM31

-QM32 -QM43-GP12

-EB103

-HQ1-FL10

-RM11

-EB104

-QM1

-BT3

-BT12 -QM31

-QM32 -QM43-GP12

-EB104

-HQ1-FL10

-RM11

AXC 30Chapter 8 | Connection of several heat pumps30


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A contact can be connected to AA5-X2:23-24 to blockcooling the accessory function. When the contactcloses, the entire accessory function is blocked.

A further contact can be connected to AA5-X2:17-18to block the accessory function. When the contactcloses, the accessory function EB10Y is blocked.

A further contact can be connected to AA5-X2:15-16to block the accessory function. When the contactcloses, the accessory function EB10X is blocked.

24 20212223 1516171819 1314

Externblockering

AA5-X2

EB10Y-GP12 EB10X-GP12

Caution


Connection of the circulation pump (GP12)Connect the circulation pump (EB10X-GP12) to AA5-X9:4 (230 V), AA5-X9:3 (N) and X1:3 (PE).

Connect the circulation pump (EB10Y-GP12) to AA5-X9:6 (230 V), AA5-X9:5 (N) and X1:3 (PE).

3

2

1

1

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3

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9

PMW

PMW

GND

GND

987654

AXC 30 Externt

EB10Y-GP12

EB10X-GP12AA5-X9

X1

AA5-X2


ON1

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45

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AA5-S2


Program settingsProgram setting ofmulti-installation during operationof several heat pumps can be performed via the startguide or directly in the menu system.



Menu 5.2.2 - installed slavesActivating/deactivating slaves

Menu 5.2.3 - dockingEnter how your system is docked regarding pipes, forexample to pool heating, hot water heating and heat-ing the building.

TIP

Examples of dockingalternatives canbe foundat www.nibe.eu.

This menu has a docking memory which means thatthe control system remembers howaparticular revers-ing valve is dockedandautomatically enters the correctdocking thenext time youuse the same reversing valve.

Master/slave: Select which heat pump the dockingsetting is to be made for (if the heat pump is alone inthe system only master is displayed).

Compressor: Select if your compressor in the heatpump is blocked (factory setting), externally controlledvia soft input or standard (docked for example to poolheating, hotwater charging andheating thebuilding).

Marking frame:Movearound themarking frameusingthe control knob. Use theOKbutton to selectwhat youwant to change and to confirm setting in the optionsbox that appears to the right.

Workspace for docking: The systemdocking is drawnhere.

DescriptionSymbol

Compressor (blocked)

Compressor (externally controlled)

Compressor (standard)

Reversing valves for hot water control.

Thedesignations above the reversing valveindicate where it is electrically connected(EB101 = Slave 1, CL11 = Pool 1 etc.).

DescriptionSymbol

Own hot water charging, only from selec-ted heat pump compressor. Controlled byrelevant heat pump.Pool 1

Pool 2

Heating (heating thebuilding, includes anyextra climate system)

Menu 5.11.1 - EB103Make settings for the installed slaves here.

Menu 5.6 - forced controlForced control of thedifferent components in theheatpump as well as in the different accessories that maybe connected.Compressor speed 3EB103 - GP12 - AA5-K2Charge pump speed 3

Compressor speed 4EB104 - GP12 - AA5-K3Charge pump speed 4

Caution


AXC 30Chapter 8 | Connection of several heat pumps32

AXC 30Chapter 8 |34

35Chapter 8 |AXC 30

AXC 30Chapter 8 |36

NIBE AB Sweden Hannabadsvägen 5Box 14 SE-285 21 [email protected]

231464

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