Nibe F1155 Service Manual
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Nibe F1155 Service Manual

Ground source heat pump
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Service manual
F1155
Ground source heat pump
SEM GB 1716-2
431539

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Summary of Contents for Nibe F1155

  • Page 1 Service manual F1155 Ground source heat pump SEM GB 1716-2 431539...

  • Page 3: Table Of Contents

    Main components Circuit board and electronics Temperature sensor 8 Technical specifications Dimensions and setting-out coordinates 1x230V 3x230V 3x400V 1x230V, 3x230V and 3x400V Working range heat pump, compressor opera- tion Diagram, dimensioning compressor speed Item register F1155 Table of Contents |...

  • Page 4: Important Information

    Document information The CE mark is obligatory for most products sold This technical manual is a complement to the Installer in the EU, regardless of where they are made. handbook for F1155, containing: Description of functions and component description. ■ IP21 Classification of enclosure of electro-technical equipment.

  • Page 5: The Heat Pump Design

    2 The heat pump design The heat pump design View from behind General W130 F1155 QN10 AA4-XJ4 AA4-XJ3 QM34 QM31 QM32 QM33 F1155 Chapter 2 | The heat pump design...
  • Page 6 Electrical components Display unit AA4-XJ3 USB socket AA4-XJ4 Service outlet (No function) Immersion heater Switch W130 Network cable for NIBE Uplink Miscellaneous Rating plate Type plate, cooling section Cable gland, incoming electricity Cable gland Cable gland, rear side, sensor Designations in component locations according to standard IEC 81346-1 and 81346-2.
  • Page 7 AA23 F1255 Electrical components Immersion heater card Base card Input circuit board AA23 Communication board Miniature circuit-breaker Temperature limiter/Emergency mode thermostat Designations in component locations according to standard IEC 81346-1 and 81346-2. F1155 Chapter 2 | The heat pump design...
  • Page 8 3x400 V 12 kW BT12 BT10 BT17 GQ10 QA40 AA100 BT14 XL21 XL20 BT15 BT11 EB10 3x400 V 16 kW 16 kW BT12 BT14 BT10 GQ10 BT17 QA40 AA100 XL20 BT11 BT15 XL21 EB10 Chapter 2 | The heat pump design F1155...
  • Page 9 Choke RF2* EMC-filter * Only 12 & 16 kW 3X400 V. Cooling components Evaporator Condenser GQ10 Compressor Drying filter Expansion valve Designations in component locations according to standard IEC 81346-1 and 81346-2. F1155 Chapter 2 | The heat pump design...

  • Page 10: System Description Principle Of Operation

    QM 31 Shut-off valve, heating medium flow QM 32 Shut off valve, heating medium return QM 33 Shut off valve, brine out QM 34 Shut-off valve, brine in QN 10 Shuttle valve, climate system/water heater Chapter 3 | System description F1155...
  • Page 11 Externally on the flow line to the heat- Calculation of DM. Actual value for ad- ing system. ditional shunt. BT50* Room sensor In suitable indoor location. Correction of the indoor temperature. * Externally mounted (not included in outline diagram). F1155 Chapter 3 | System description...
  • Page 12 Actual value for shunt valve, climate system system 8. EP27-BT3 Return line, extra climate On return line from extra climate sys- View system tem 8. AZ1-BT20 Exhaust air In exhaust air in FLM. View. Chapter 3 | System description F1155...
  • Page 13 Name Location Function AZ1-BT21 Extract air In extract air in FLM. Controls defrosting AZ1-BT26 Collector in On incoming collector line in FLM. View. AZ1-BT27 Collector out On outgoing collector line in FLM. View. F1155 Chapter 3 | System description...

  • Page 14: System Diagram

    QN10 switches to the heating system. The heat pump works to a calculated set point value on the supply line. If the compressor cannot meet the whole heating requirement, electric heat is shunted in as ne- cessary. More system principles are on www.nibe.eu. Refer to the Installer manual for description of possible docking alternatives.
  • Page 15 Max system pressure Min. flow (50 Hz) 0.13 0.20 0.36 Nominal flow (50 Hz) 0.18 0.29 0.51 Max. external available pressure at nominal flow (50 Hz) Max/min incoming temperature °C See diagram page 79. F1155 Chapter 3 | System description...

  • Page 16: Cooling Circuit

    < High pressure pressostat Stop with automatic restart: The compressor stops when the pressure is 32 bar, and ■ restarts automatically when the pressure is below 25 bar. Stop with manual restart missing. Chapter 4 | Cooling circuit F1155...

  • Page 17: Expansion Valve

    The compressor stops when the pressure is below 1.5 ■ overheating. bar, and can restart when the pressure is above 3 bar. F1155 superheat The function is blocked for 1 minute after switching between charging type (HW, heating, pool). 6 kW 4 - 8 °C...

  • Page 18: Component Description

    W-V[C-R] W-U[C-S] U-V[S-R] Rotation 0.72 0.72 0.72 Scroll 0.43 0.43 0.43 3 x 400 V Size (kW) Type Resistance range (Ω at 20 °C +/- 10 %) W-V[C-R] W-U[C-S] U-V[S-R] Scroll 5.19 5.19 5.19 Chapter 5 | Component description F1155...

  • Page 19: Other Components

    Actuator motor: 7 VA, 230/24 VAC, 50 Hz, IP 40. Running time approx 8 seconds Max. operating pressure: 1.0 MPa Operating temperature: 5 - 80 °C (90 °C briefly) F1255-6 F1255-16 Ø22 mm Ø28 mm Ø22 mm Ø28 mm F1155 Chapter 5 | Component description...
  • Page 20 UPM2 25-70. Operating voltage 1x230 V, max 63 W Control signal: PWM 0 - 10 V DC (max-min speed) Max flow: 5 m3/h Max lift height: 7 m. G 1 ⁄ ’’ 109,3 G 1 ⁄ ’’ 135,3 Chapter 5 | Component description F1155...
  • Page 21 High pressure switch (BP1) Breaking value: 32 bar Reconnection differential: -7 bar Low pressure switch (BP2) Breaking value: 1.5 bar Reconnection differential: 1.5 bar Compressor heater Output (5-10): 30 W Output (12-17): 40 W F1155 Chapter 5 | Component description...

  • Page 22: Sensors

    12.51 2.399 10.00 2.245 8.045 2.083 6.514 1.916 5.306 1.752 4.348 1.587 3.583 1.426 2.968 1.278 2.467 1.136 2.068 1.007 1.739 0.891 1.469 0.785 1.246 0.691 1.061 0.607 0.908 0.533 0.779 0.469 0.672 0.414 Chapter 5 | Component description F1155...

  • Page 23: Electronics

    1255-12: Im- mersion heater Output Function mersion heater 3 kW (K9) 2 kW PWM1 Control signal HM pump (GP1) 1255-12:Im- mersion heater PWM2 Control signal brine pump (GP2) 3 kW (K9) Reversing valve (QN10) F1155 Chapter 5 | Component description...
  • Page 24 No active communication between Mod- green AA2 Base card. bus 40 and "external control". COM: Irregular flashing indicates communication SYNC No function. Flashes with the inverter. green A steady light means that supply voltage is OK. Chapter 5 | Component description F1155...
  • Page 25 Continuous light during active output. ange PWM2: Or- Continuous light during active output. ange K1 - K4: Or- A steady light means that the relevant relay ange is engaged. Output Function See relevant accessory. F1155 Chapter 5 | Component description...

  • Page 26: Troubleshooting

    The input for the sensor re- Compressor blocked. Defective sensor and its con- BT12 condenser ceives an unreasonably high nections. GP2 switches to manual speed or low value for longer than if auto controlled is selected. two seconds. Chapter 6 | Troubleshooting F1155...
  • Page 27 The input for the sensor re- Shuts off cooling, Closes shunt Defective sensor and its con- EQ1-BT64 cool- ceives an unreasonably high (QN18) for cooling. nections. ing supply or low value for longer than two seconds. F1155 Chapter 6 | Troubleshooting...
  • Page 28 15 seconds. ■ Incorrect ver- The software version of the Compressor is blocked Base board needs replacing sion, PCA Base base board (AA2) is too low (AA2) for inverter communication. Chapter 6 | Troubleshooting F1155...
  • Page 29 - Check that the particle filter is ously for one hour. not blocked. - Open any radiator / under- floor heating thermostats. ■ Poor position of inverter. - Check screws and paste. F1155 Chapter 6 | Troubleshooting...
  • Page 30 ■ Internal compressor wiring. three times within two hours -if compressor runs slowly, if or missing continuously for no, replace inverter. one hour. Chapter 6 | Troubleshooting F1155...
  • Page 31 - Restart the heat pump by missing continuously for one switching it off via its switch hour. Unused function (false and cut the current via the cir- alarm). cuit breaker for example. - Inverter replacement F1155 Chapter 6 | Troubleshooting...
  • Page 32 - Restart the heat pump by missing continuously for one switching it off via its switch hour. Unused function (false and cut the current via the cir- alarm). cuit breaker for example. - Inverter replacement Chapter 6 | Troubleshooting F1155...
  • Page 33 ■ It may require a larger main the current in at least one fuse phase is too high ■ The com- Only information No action pressor's phase has been over- loaded. F1155 Chapter 6 | Troubleshooting...
  • Page 34 - Restart the heat pump by switching it off via its switch and cut the current via the cir- cuit breaker for example. If the fault occurs again, contact ser- vice. Chapter 6 | Troubleshooting F1155...
  • Page 35 ■ Inverter alarm compressor has run temporar- The compressor is stopped. Check main and group fuses type II ily at a lower speed than the and their cable connections. minimum permitted. F1155 Chapter 6 | Troubleshooting...
  • Page 36 III has occurred. Unused function and their cable connections. (false alarm). - Restart the heat pump by switching it off via its switch and cut the current via the cir- cuit breaker for example. Chapter 6 | Troubleshooting F1155...
  • Page 37 Additional heat is externally Additional heat is blocked Check any external connec- blocked via AUX input. tion functions. ■ Blocked Additional heat is externally Compressor is blocked Check any external connec- blocked via AUX input. tion functions. F1155 Chapter 6 | Troubleshooting...

  • Page 38: Troubleshooting Guide

    (AA3)?JSH (See "Data for temperature sensor" section.) Is the output voltage from the card Check wiring and switches. correct? (See "Data for temperature sensor" section.) Defective input circuit board (AA3). Replace. Chapter 6 | Troubleshooting F1155...
  • Page 39 Check wiring and switches. (AA2)? (See section “Electrical wiring diagram in IHB”.) Is the output voltage from the card Check wiring and switches. correct? (See "Data for temperature sensor" section.) Defective base card (AA2). Replace. F1155 Chapter 6 | Troubleshooting...
  • Page 40 Defective joint card (AA100). base board (AA2)? Replace. (See Electrical wiring diagram in IHB) Is the output voltage from the card Check wiring and switches. correct? (See "Data for temperature sensor" section.) Defective base card (AA2). Replace. Chapter 6 | Troubleshooting F1155...
  • Page 41 Alarm 20, 21, 26 – sensor fault Fault-tracing in NIBE FLM Is the actual sensor correctly Action. connected? Is the wiring connector (W4) on the joint card (AA100) correctly Action. connected? Is the wiring connector (W4) on the accessory card (AA5) correctly Action.
  • Page 42 Check wiring and switches. (AA5)? (See "Temperature sensor" section.) Is the output voltage from the card Check wiring and switches. correct? (See "Data for temperature sensor" section.) Defective accessory card (AA5). Replace. Chapter 6 | Troubleshooting F1155...
  • Page 43 -QA40-X4? Does the pressure switch break at the Action. correct pressure? Are the supply temperature sensor (BT2 ) and return line sensor (BT3 ) Action. showing the correct readings? Check cooling circuit. F1155 Chapter 6 | Troubleshooting...
  • Page 44 Is the pressure switch Action. correctly connected? Does the pressure switch Action. break at the correct pressure? Action. Is the refrigerant circuit intact? Lack of heating medium or other fault in the cooling circuit. Check cooling circuit. Chapter 6 | Troubleshooting F1155...
  • Page 45 Can the overheat protection be reset when the temperature is Replace overheating protection. below 80 °C? Is the heating medium flow across Action. the heat pump correct? Check the relay function for the immersion heater. F1155 Chapter 6 | Troubleshooting...
  • Page 46 Is the low pressure switch Action. correctly connected? Are the brine in (BT10) and brine Action. out (BT11) sensors showing the correct reading? Lack of refrigerant or other fault in the cooling circuit. Check cooling circuit. Chapter 6 | Troubleshooting F1155...
  • Page 47 (AA3-X2) and on the display board (AA1-X8)? (see electrical wiring diagram in IHB) Replace the base board (AA2 / AA26). Has the fault been corrected? Replace the display card (AA4). F1155 Chapter 6 | Troubleshooting...
  • Page 48 (AA5-XJ6) (does not apply to alarm 79)? Replace the accessory card (AA5). Has the fault been corrected? Replace the input circuit board (AA3). Has the fault been corrected? Replace the display card (AA4). Chapter 6 | Troubleshooting F1155...
  • Page 49 Pins in connections Is the P W R LED on Replace base board, AA2. communication board AA23 green? Is the I N V LED on Replace communication communication board AA23 board, AA23. green? Replace inverter (QN40)? F1155 Chapter 6 | Troubleshooting...

  • Page 50: Function Check, Relays/Components

    Climate system 3 (ECS 40/41) Output Function 1255-12: Im- 1255-12:Im- mersion heater mersion heater EP22-AA5-K2 Mixing valve, close 2 kW 2 kW 1255-16:Im- EP22-AA5-K3 Mixing valve, open mersion heater EP22-AA5-K4 External circulation pump 2 kW Chapter 6 | Troubleshooting F1155...
  • Page 51 External circulation pump Pool 1 (POOL 40) Output Function CL11-A5-K1 External circulation pump CL11-A5-K3 Pool reversing valve CL11-A5-K4 Pool pump Pool 2 (POOL 40) Output Function CL12-A5-K1 External circulation pump CL12-A5-K3 Pool reversing valve CL12-A5-K4 Pool pump F1155 Chapter 6 | Troubleshooting...
  • Page 52 EQ1-AA5-K2 Shunt valve, (QN18) close EQ1-AA5-K3 Shunt valve, (QN18) open EQ1-AA5-K4 Reversing valve (QN12) Passive cooling 4-pipe (PCS44) Output Function EQ1-AA5-K1 Circulation pump cooling (GP13) EQ1-AA5-K2 Mixing valve (QN18), close EQ1-AA5-K3 Mixing valve (QN18), open Chapter 6 | Troubleshooting F1155...
  • Page 53 10 V DC Fan (GQ10) FLM Fan speed GQ10 PVM2, X2:3-4 LED PWM2 on Board AA2 100 % approx 0 V DC Not lit 50 % approx 5 V DC Half lit approx 10 V DC F1155 Chapter 6 | Troubleshooting...

  • Page 54: Component Replacement

    Cut the current with the circuit breaker before Caution carrying out any servicing. Drain the cooling module according to IHB to F1155 can contain liquids at high temperature facilitate lifting. and under high pressure. When replacing components on F1155 only re- Caution placement parts from NIBE may be used.
  • Page 55 Disconnect the connector (C) from the immersion heater circuit board (AA1) using a screwdriver. Disconnect the connector (D) from the joint circuit board (AA100). Carefully pull out the cooling module. The cooling module is installed in reverse order. F1155 Chapter 7 | Component replacement...
  • Page 56 Removing the cover, input circuit board 1. Unscrew the screws and angle out the cover. 2. Unscrew the screws and angle out the cover. 2. Pull off the cover. 3. Pull off the cover. Chapter 7 | Component replacement F1155...

  • Page 57: Main Components

    54. 3 Slacken off 12 screws. 4 Remove the cover on the cooling module. 5 Slacken off 8 screws. 6 Remove the right/rear side panel on the cooling mod- ule. F1155 Chapter 7 | Component replacement...
  • Page 58 7 Slacken off 7 screws. 8 Remove the left/rear side panel on the cooling mod- ule. 9 Unscrew the ground cable. 10 Disconnect the com- Ground cable pressor supply cables. Supply Chapter 7 | Component replacement F1155...
  • Page 59 12 Drain the cooling circuit and ensure that no refriger- Discharge ant remains before you con- tinue. 13 Disconnect the pipes for suction gas and hot gas. 14 Remove the compressor. Suction gas F1155 Chapter 7 | Component replacement...
  • Page 60 54. 3 Slacken off 12 screws. 4 Remove the cover on the cooling module. 5 Slacken off 8 screws. 6 Remove the right/rear side panel on the cooling mod- ule. Chapter 7 | Component replacement F1155...
  • Page 61 7 Drain the cooling circuit and ensure that no refriger- Bulb ant remains before you con- tinue. 8 Slacken off the bulb for the expansion valve. 9 Disconnect the pipes and remove the valve. Expansion valve (QN1) F1155 Chapter 7 | Component replacement...
  • Page 62 2 Remove the electrical con- nection from its mountings using a screwdriver and pull out the electrical connector. Mountings Screwdriver ( E C S 4041) 3 Disconnect the two cables through the cover in front of (AA2). Cable Chapter 7 | Component replacement F1155...
  • Page 63 3 brown cables from the ter- minal block X3 and X7 on (AA1). 7 Pull out the two bulbs from the immersion heater. 8 Disconnect the immersion heater at the marked coup- lings. 9 Remove the immersion heater. Connections F1155 Chapter 7 | Component replacement...
  • Page 64 Reversing valve (QN10) 1 Drain the heating medium system. 2 Remove the switch on the actuator. 3 Remove the pin and lift up Contact the actuator. 4 Disconnect and remove the three way valve. Connections Chapter 7 | Component replacement F1155...
  • Page 65 5 Drain the heating circuit by Screw 6 Remove the electric switch on the circulation pump. 7 Remove the switch for the control cable on the joint board. AA100 8 Disconnect and remove the circulation pump. Electrical connections Connections F1155 Chapter 7 | Component replacement...
  • Page 66 5 Remove the electric switch on the circulation pump. 6 Remove the switch for the control cable on the joint board. AA100. 7 Disconnect and remove the circulation pump. Electrical switch Connections Electrical switch Chapter 7 | Component replacement F1155...

  • Page 67: Circuit Board And Electronics

    Immersion heater card (AA1) 1 Remove the plastic cover Screw over the electronics box. Cable 2 Disconnect the cables and screws holding the card in position. Screw 3 Remove the immersion heater card (.AA1). F1155 Chapter 7 | Component replacement...
  • Page 68 2 Remove the plastic cover over the electronics box. Cable 3 Disconnect the cables and screws holding the card in position. 4 Remove the base card (AA2). Screw Chapter 7 | Component replacement F1155...
  • Page 69 Input circuit board (AA3) 1 Remove the plastic cover over (AA3. See page 56. 2 Disconnect the cables and screws holding the card in position. 3 Remove the input card (AA3). Screw F1155 Chapter 7 | Component replacement...
  • Page 70 2 Disconnect the network cable from the network socket. 3 Press the catch on the up- per rear side of the display unit towards you. 4 Remove the display unit. Network socket Electrical switch Chapter 7 | Component replacement F1155...
  • Page 71 ?? 2 Slacken off 12 screws. 3 Remove the top cover from the cooling module. 4 Slacken off 9 screws. 5 Remove the left/rear side panel on the cooling mod- ule. F1155 Chapter 7 | Component replacement...
  • Page 72 6 Remove cables and con- nectors. 7 Slacken off 4 screws. 8 Remove the inverter. Screws Inverter Chapter 7 | Component replacement F1155...
  • Page 73 If not, add more paste. 15 Install the inverter se- curely on the aluminium plate (4 screws), tightening the screws diagonally (Torque 4.0 Nm). 16 Wipe off any excess paste. F1155 Chapter 7 | Component replacement...

  • Page 74: Temperature Sensor

    Installer Manual for the specific model. Temperature sensor Mounting Install the temperature sensor with cable ties with the heat conducting paste and aluminium tape. Then insulate with supplied insulation tape. Chapter 7 | Component replacement F1155...

  • Page 75: Technical Specifications

    Dimensions and setting-out coordinates * This dimension applies at 90° angle on the brine pipes (side connection). The dimension can vary approx. ±100 mm in height as the brine pipes partially consist of flexible pipes. F1155 Chapter 8 | Technical specifications...

  • Page 76: 1X230V

    1x230V F1155-6 Electrical data Rated voltage 230V ~ 50Hz Max operating current including 0 – 0.5 kW immersion heater (Recommended fuse rating). 15(16) Max operating current including 1 – 1.5 kW immersion heater (Recommended fuse rating). 20(20) Max operating current including 2 – 2.5 kW immersion heater (Recommended fuse rating).

  • Page 77: 3X400V

    3x400V F1155-6 Electrical data Rated voltage 400V 3N ~ 50Hz Max operating current including 0 kW immersion heater (Recommended fuse rating). 12(16) Max operating current including 0.5 – 6.5 kW immersion heater (Recommended fuse rating). 16(16) Additional power 0.5/1/1.5/2/2.5/3 /3.5/4/4.5/5/5.5/6/6.5...

  • Page 78: 1X230V, 3X230V And 3X400V

    F1155-6 and the entire working range for F1155-12, - F1155-6 Dimensionering kompr. hastighet för F1155-1255 -6 kW. Arbetsområde under 75% för F1155-1255 6kW och för hela arbetsområdet 16 kW. Angiven värmeeffekt Arbetsområde under 75% för F1155-1255 6kW och för hela arbetsområdet 16 kW.
  • Page 79 Cooling mode (Accessory required) Framledningstemp. Värmebärare 35 °C för F1155-1255 -6 kW. Caution Angiven värmeeffekt To dimension heating dump, see the diagram for heating operation. 100% Supply temperature, heating medium 35 °°C F1155-6 Framledningstemp. Värmebärare 35 °C för F1155-1255 -6 kW.

  • Page 80: Item Register

    Extra relay circuit board (AA7), 24 Function check, circulation pumps, 53 Function check, relays/components Function check, circulation pumps, 53 High pressure switch, 16 Immersion heater card (AA1), 23 Inverter (???), 71 Low pressure pressostat, 17 Chapter 9 | Item register F1155...
  • Page 84 WS name: -Gemensamt WS version: a361 WS release date: 2017-04-21 13:53 Publish date: 2017-05-04 14:57 NIBE AB Sweden Hannabadsvägen 5 Box 14 SE-285 21 Markaryd info@nibe.se www.nibe.eu...

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