Nibe F1155 Series Bedienungsanleitung

Service manual

LEK

F1155

Ground source heat pump

SEM GB 1716-2

431539

Table of Contents

41 Important information

4Document information

4Safety information

52 The heat pump design

5The heat pump design

103 System description

10Principle of operation

14System diagram

164 Cooling circuit

16Outline diagram

16Compressor control

17Expansion valve

185 Component description

18Compressor (GQ10)

19Other components

22Sensors

23Electronics

266 Troubleshooting

26Alarm list

38Troubleshooting guide

50Function check, relays/components

547 Component replacement

54Basic

57Main components

67Circuit board and electronics

74Temperature sensor

758 Technical specifications

75Dimensions and setting-out coordinates

761x230V

763x230V

773x400V

781x230V, 3x230V and 3x400V

Working range heat pump, compressor opera-

tion

78Diagram, dimensioning compressor speed

80Item register

3Table of Contents |F1155

Document information

This technical manual is a complement to the Installer

handbook for F1155, containing:

■Description of functions and component description.

■Information to facilitate fault-tracing.

■Instructions for replacing components.

■Supplementary technical information.

The document applies to heat pumps with software

version 7740R5.

The heat pump software version can be found in the info

menu (menu 3.1).

Safety information

This manual describes installation and service procedures

for implementation by specialists.

This appliance can be used by children

aged from 8 years and above and per-

sons with reduced physical, sensory or

mental capabilities or lack of experience

and knowledge if they have been given

supervision or instruction concerning use

of the appliance in a safe way and under-

stand the hazards involved. Children shall

not play with the appliance. Cleaning

and user maintenance shall not be made

by children without supervision.

Rights to make any design or technical

modifications are reserved.

©NIBE 2017.

Symbols

NOTE

This symbol indicates danger to person or ma-

chine .

Caution

This symbol indicates important information

about what you should observe when maintain-

ing your installation.

TIP

This symbol indicates tips on how to facilitate

using the product.

Marking

The CE mark is obligatory for most products sold

in the EU, regardless of where they are made.

Classification of enclosure of electro-technical

equipment.

IP21

Danger to person or machine.

Serial number

The serial number can be found at the bottom right of

the front cover and in the info menu (menu 3.1).

Caution

You need the product's (14 digit) serial number

for servicing and support.

F1155Chapter 1 | Important information4

1 Important information

The heat pump design

General

F1155

UB1

EB1

QM34

QM31

UB2

QM32

QM33

XL1

XL6 XL7

XL2XL9

QN10

PF1

PF2

BT2

UB3

AA4

AA4-XJ3

AA4-XJ4

SF1

W130

RA3

View from behind

BF1

5Chapter 2 | The heat pump designF1155

2 The heat pump design

Pipe connections

Connection, heating medium flowXL1

Connection, heating medium returnXL2

Connection, brine inXL6

Connection, brine outXL7

Connection, hot water heaterXL9

HVAC components

Shut-off valve, heating medium flowQM31

Shut off valve, heating medium returnQM32

Shut off valve, brine outQM33

Shut-off valve, brine inQM34

Shuttle valve, climate system/water heaterQN10

Sensors etc.

Flow meter**BF1

Outdoor temperature sensor*BT1

Temperature sensors, heating medium flowBT2

**Only heat pumps with energy meter

* Not illustrated

Electrical components

Display unitAA4

AA4-XJ3 USB socket

AA4-XJ4 Service outlet (No function)

Immersion heaterEB1

SwitchSF1

Network cable for NIBE UplinkW130

Miscellaneous

Rating platePF1

Type plate, cooling sectionPF2

Cable gland, incoming electricityUB1

Cable glandUB2

Cable gland, rear side, sensorUB3

Designations in component locations according to

standard IEC 81346-1 and 81346-2.

F1155Chapter 2 | The heat pump design6

Distribution boxes

F1255

FD1

AA1

FA1

AA3

AA2AA23

Electrical components

Immersion heater cardAA1

Base cardAA2

Input circuit boardAA3

Communication boardAA23

Miniature circuit-breakerFA1

Temperature limiter/Emergency mode thermostatFD1

Designations in component locations according to

standard IEC 81346-1 and 81346-2.

7Chapter 2 | The heat pump designF1155

Cooling section

6 kW

LEK

BT10

AA100

BT3

QM2

GP1

GP2

QM1

BT11

BT12

1x230 V 12 kW

3x230 V 12 kW

LEK

BT10

AA100

BT3

QM2

GP1

GP2

QM1

BT11

BT12

3x400 V 12 kW

LEK

BT11

BT12

AA100

BT10

RF2

BT3

GP2

QM2 QM1

GP1

16 kW

LEK

BT12

RF2

GP1

GP2

QM2

QM1

BT10

AA100

BT11

BT3

6 kW

LEK

EP2

BT14

QA40

BP2

BT15

BP1 EB10

BT17

EP1

GQ10

HS1

XL20

QN1

XL21

RA1

CA1

1x230 V 12 kW

3x230 V 12 kW

LEK

EP2 BT17

QA40

BT15

BP1

BT14

EP1

GQ10

HS1

XL20

QN1

XL21

RA1

CA1 BP2

EB10

3x400 V 12 kW

LEK

EP2

QA40

BT17

BT14

XL21

BT15

BP1

EP1

GQ10

HS1

BP2

XL20

QN1

EB10

3x400 V 16 kW

LEK

EP2

BT14

BT17

QA40

BP2

BT15

BP1

EB10

EP1

GQ10

HS1

XL20

QN1

XL21

F1155Chapter 2 | The heat pump design8

Pipe connections

Service connection, high pressureXL20

Service connection, low pressureXL21

HVAC components

Circulation pumpGP1

Brine pumpGP2

Drainage, climate systemQM1

Draining, brine sideQM2

Sensors etc.

High pressure pressostatBP1

Low pressure pressostatBP2

Temperature sensors, heating medium returnBT3

Temperature sensor, brine inBT10

Temperature sensor, brine outBT11

Temperature sensor, condenser supply lineBT12

Temperature sensor, hot gasBT14

Temperature sensor, fluid pipeBT15

Temperature sensor, suction gasBT17

Electrical components

Joint cardAA100

CapacitorCA1

Compressor heaterEB 10

InverterQA40

ChokeRA1

EMC-filterRF2*

* Only 12 & 16 kW 3X400 V.

Cooling components

EvaporatorEP1

CondenserEP2

CompressorGQ10

Drying filterHS1

Expansion valveQN1

Designations in component locations according to

standard IEC 81346-1 and 81346-2.

9Chapter 2 | The heat pump designF1155

Principle of operation

KBinVBf VBrVV KBut

XL1 XL6 XL9 XL7 XL2

BP2

BT3

BT12 BT10

BT17

BT15 BP1 BT11

BT14

EP1

EP2

GQ10

GP2

QM32

QM33

QW1

GP1

QM31

QM34

QN10

List of components

Pipe connections

Connection, heating medium flowXL 1

Connection, heating medium returnXL 2

Connection, brine inXL 6

Connection, brine outXL 7

Connection, hot water heaterXL 9

Cooling components

EvaporatorEP 1

CondenserEP 2

CompressorGQ 10

Expansion valveQN 1

HVAC components

Circulation pumpGP 1

Brine pumpGP 2

Shut-off valve, heating medium flowQM 31

Shut off valve, heating medium returnQM 32

Shut off valve, brine outQM 33

Shut-off valve, brine inQM 34

Shuttle valve, climate system/water heaterQN 10

F1155Chapter 3 | System description10

3 System description

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