Nibe AXC 40 Benutzerhandbuch

Installer manual

LEK

AXC 40

Accessories

IHB GB 0935-1

031444

Table of Contents

1 General 2

Contents 2

Component positions 2

2 Common electrical connection 3

Connecting the supply 3

Connecting communication 3

3 Mixing valve controlled additional

heat (oil/gas boiler/district heat-

ing) 4

General 4

Pipe connections 4

Outline diagram 5

Electrical connection 7

Program settings 8

Electrical circuit diagram 9

4 Hot water circulation 10

General 10

Outline diagram 10

Electrical connection 12

Program settings 12

Electrical circuit diagram 13

5 Groundwater pump 14

General 14

Outline diagram 14

Electrical connection 16

Program settings 16

Electrical circuit diagram 17

1Table of Contents |AXC 40

This accessory is used to enable connection and control

of:

႑Mixing valve controlled additional heat

႑Pump for hot water circulation

႑Groundwater pump

Contents

Cable ties4x

Heating pipe paste2x

Insulation tape1x

Kit for accessory card1x

Aluminium tape2x

Temperature sensor2x

Component positions

LEK

AA5-X4

AA5-S2

AA5-X2

AA5-X9

FA1

AA5-F1

AA5

Miniature circuit-breakerFA1

Terminal block, power supplyX1

Accessory cardAA5

Terminal block, sensors and external blockingAA5-X2

Terminal block, communicationAA5-X4

Terminal block, circulation pump, mixing valve and auxiliary relayAA5-X9

DIP switchAA5-S2

Fine-wire fuseAA5-F1

AXC 40Chapter 1 | General2

1 General

NOTE

All electrical connections must be carried out by

an authorised electrician.

Electrical installation and wiring must be carried

out in accordance with the stipulations in force.

F1145/F1245 must not be powered when in-

stalling AXC 40.

Electrical circuit diagrams are at the end of the chapter

for each connection option.

Connecting the supply

Connect the power supply to terminal block X1 as illus-

trated.

230V 50Hz-X1

Connecting communication

The first accessory card must be connected directly to the

heat pump's terminal block AA3-X4. In the event of sev-

eral accessory cards the following cards must be connec-

ted in series with the previous card.

Use cable type LiYY, EKKX or similar.

AA5-X4

GND

AA3-X4

AA5-X4

F1245

AA3-X4

F1145

AA3-X4

Accessory card 1

Accessory card 2

12345678

-X9

-X2

24 20212223 1516171819 1011121314 567891

234

-X8

-X4

-X10

-X1

AA5-X4

12345678

-X9

-X2

24 20212223 1516171819 1011121314 567891

234

-X8

-X4

-X10

-X1

AA5-X4

F1145/F1245

3Chapter 2 | Common electrical connectionAXC 40

2 Common electrical connection

General

This connection enables an external additional heater,

e.g. an oil boiler, to aid with heating.

The heat pump controls a mixing valve and a circulation

pump via AXC 40. If the heat pump does not manage to

keep the correct flow temperature, the addition starts

and the mixing valve (QN11) opens from the addition.

Pipe connections

Temperature sensor

Install the boiler sensor (BT52) in a suitable location

in the external addition.

External flow temperature sensor (BT25) must be in-

stalled on the flow line to the radiators, after the

mixing valve (QN11).

Install the temperature sensors with cable ties with the

heat conducting paste and aluminium tape. Then insulate

with supplied insulation tape.

NOTE

Sensor and communication cables must not be

placed near power cables.

AXC 40Chapter 3 | Mixing valve controlled additional heat (oil/gas boiler/district heating)4

3 Mixing valve controlled additional heat

(oil/gas boiler/district heating)

Outline diagram

Explanation

Heat pumpEB100Temperature sensor, outdoorBT1

Accumulator tank with hot water coilCP1Temperature sensor, hot waterBT6

Expansion vesselCM1,

CM4

External temperature sensor, flow lineBT25

Safety valveFL2Temperature sensor, additionBT52

Shut-off valveQM31,

QM32

External additionEM1

Particle filterHQ1, HQ4Mixing valve, additionQN11

Non-return valveRM1Accessory card, additionAA5

Circulation pump, climate systemGP10Auxiliary relay, additionKA1

Outline diagram F1145 with AXC 40 and external addition

-QM31

-FL2

-QM32

-HQ1

-CM1

-BT1

-EB100

F1145

-QN11

-EM1 -BT52

-CM4

-EM1-KA1

-FL2

-BT25 -GP10

-EM1-AA5

-RM1

-BT6

-CP1

5Chapter 3 | Mixing valve controlled additional heat (oil/gas boiler/district heating)AXC 40

Outline diagram F1245 with AXC 40 and external addition

-BT1

-QM31

-QM32

-HQ1

F1245

-EB100

-FL2

-CM1

-QN11

-EM1 -BT52

-CM4

-EM1-KA1

-FL2

-BT25 -GP10

-RM1

-EM1-AA5

AXC 40Chapter 3 | Mixing valve controlled additional heat (oil/gas boiler/district heating)6

Electrical connection

NOTE

All electrical connections must be carried out by

an authorised electrician.

Electrical installation and wiring must be carried

out in accordance with the stipulations in force.

F1145/F1245 must not be powered when in-

stalling AXC 40.

Connection of sensors and external blocking

Use 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 to

block the addition. When the contact closes, the addition

is blocked.

345678

-X2

24 20212223 1

1819

-X8

BT52

External

blocking

AA5

External flow temperature sensor (BT25)

Connect the flow temperature sensor to AA3-X6:5-6 on

the input card in the heat pump.

AA3-X6

BT25

AA3-X6

F1245

123456789

BT25

AA3-X6

F1145

Caution

The relay outputs on the accessory card can have

a max load of 2 A (230 V) in total.

Connection of the circulation pump (GP10)

Connect the circulation pump (GP10) to AA5-X9:8 (230

V), AA5-X9:7 (N) and X1:3 (PE).

-X9

-X1

-X10

GP20

AA5

7Chapter 3 | Mixing valve controlled additional heat (oil/gas boiler/district heating)AXC 40

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).

-X9

Open

Close QN11

AA5

Connection of the auxiliary relay for addition-

al heating

Connect the auxiliary relay for switching the addition on

and off to AA5-X9:2 (230 V) and AA5-X9:3 (N).

-X9

A1 A2

External auxiliary relay

Additional

Heating

External auxiliary relay

Additional

heat:

AA5

DIP switch

The DIP switch on the accessory card must be set as fol-

lows.

12345678

-X9

-X2

24 20212223 1516171819 1011121314 567891

234

-X8

-X4

-X10

-X1

AA5-S2

Program settings

Program setting of AXC 40 can be performed via the start

guide or directly in the menu system.

Start guide

The start guide appears upon first start-up after heat

pump installation, but is also found in menu 5.7.

Menu system

If you do not make all settings via the start guide or need

to change any of the settings, this can be done in the

menu system.

Menu 5.2 - system settings

Activating/deactivating of accessories.

Menu 5.3.2 - shunt controlled add. heat

Setting minimum running time, minimum boiler temper-

ature for the mixing valve to start control and start value

for the addition as well as mixing valve settings.

Caution

Also see the Installer manual for F1145/F1245.

AXC 40Chapter 3 | Mixing valve controlled additional heat (oil/gas boiler/district heating)8

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