Nibe F2120 Service Manual
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Nibe F2120 Service Manual

Air/water heat pump
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Service manual
F2120
Air/water heat pump
TEM EN 1726-1
431572

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Summary of Contents for Nibe F2120

  • Page 1 Service manual F2120 Air/water heat pump TEM EN 1726-1 431572...

  • Page 2: Table Of Contents

    Low room temperature High room temperature Ice build-up in the fan, grille and/or fan cone on the outdoor module Large amount of water below F2120 Alarm list 6 Removing the covers Basic 7 Technical data Dimensions and setting-out coordinates...

  • Page 3: Important Information

    Instructions for replacing components. ■ Supplementary technical information. ■ The document applies to F2120 with software versions up to and including 473. Serial number The heat pump software version can be found in the info menu on the indoor module/control module (menu 3.1).

  • Page 4: The Heat Pump Design

    2 The heat pump design General F2120 (1x230V) BT84 BT12 QN34 BT81 BP11 L E K QA40 GQ10 BT14 EB10 XL20 BT17 XL21 BT15 Chapter 2 | The heat pump design F2120...
  • Page 5 F2120 (2x230V) BT84 BT12 QN34 BT81 BP11 L E K QA40 GQ10 BT14 EB10 XL20 BT17 XL21 BT15 F2120 Chapter 2 | The heat pump design...
  • Page 6 F2120 (3x400V) BT84 BT12 QN34 BT81 BP11 L E K QA40 GQ10 BT14 EB10 XL20 BT17 XL21 BT15 Chapter 2 | The heat pump design F2120...
  • Page 7 BT28 D a ta S e ri e .n r. BT16 XL40 71145 3 Art.nr . F2120 Chapter 2 | The heat pump design...
  • Page 8 Pipe connections Miscellaneous Connection, heating medium out of F2120 Type plate Connection, heating medium in to F2120, Serial number XL20 Service connection, high pressure Sign, pipe connections XL21 Service connection, low pressure Cable gland, incoming supply XL40 Connection, drain condensation water trough...

  • Page 9: Distribution Box

    Terminal block, subcooling QN34 Fuse, operating 230V~ Fuse, operating 230V~ Fuse for external heating cable KVR Fuse, fan Fuse, fan Miniature circuit breaker (Replaced with automat- ic protection (FB1) when installing accessory KVR 10.) F2120 Chapter 2 | The heat pump design...

  • Page 10: System Description

    Temperature sensor, evaporator in Non-return valve BT17 Temperature sensor, suction gas Condensation water trough heater BT28 Temperature sensor, ambient Inverter cooler BT81 Temperature sensor, injection Subcooler BT84 Temperature sensor, suction gas evaporator Particle filter Subcooler, cooling operation Chapter 3 | System description F2120...

  • Page 11: System Diagram

    NIBE does not supply all components in this outline diagram. SMO20/40 (AA25) starts and stops the heat pump (F2120) to meet the heat and hot water demand of the installation. At simultaneous heating and hot water demand, the reversing valve (AA25-QN10) switches periodically between the climate system and the water heater/accumulator tank (CP10).
  • Page 12 This installations alternative is suitable for more complex installations with a focus on comfort. SMO20/40 (AA25) starts and stops the heat pump (F2120) to meet the heat and hot water demand of the installation. The heat pump works to a calculated set point value on the supply line. At simultaneous heating and hot water demand, the reversing valve (AA25-QN10) switches periodically between the climate system and the water heat- er/accumulator tank (CP10).
  • Page 13 0.15 0.19 Max flow 0.32 0.44 0.60 0.75 Internal pressure drop at 10 K flow Pressure drop, heating medium side Tryckfall F2120 Pressure drop (kPa) Tryckfall [kPa] -12/-16/-20 0,05 0,1 0,15 0,2 0,25 0,3 0,35 0,4 0,45 0,5 0,55 0,6...

  • Page 14: Component Description

    Compressor is operational, OK Red, steady Alarm Red, flashing Broken circuit on terminal block X4 The inverter’s power LED lights orange continuously when the inverter is powered. (Applies only to F2120-16 and Voltage Inverter size Used in 1x230 V F2120-8...

  • Page 15: The Base Board

    The base board Supply circuit board Fuses, T4 Fuses, T4 Inverter K1 QN2 K2 EB10 LED K1-K4 K3 QN4 K4 KVR10 Fuse Tariff Dip switch S2 Dip switch S1 Reset S3 F2120 Chapter 4 | Component description...
  • Page 16 For cascade operation with SMO for ex- ample, addressing is required. Default has F2120 address Not lit Control board without 1. In a cascade connection all F2120 must have a unique power address. The address is coded in binary. (green)

  • Page 17: Base Board's Contacts

    The function is stopped when S2:1 is entered as OFF when starting the installation. The function requires when starting the installation. The function requires software version 447 or higher in F2120. software version 447 or higher in F2120. Relay Function...

  • Page 18: Electronic Expansion Valve

    Electronic expansion valve QN1 (EEV) Supplier Designation Type Used in Danfoss EEV 034G5010 ETS6-14 F2120-8 F2120-12 EEV 034G5070 ETS6-18 F2120-16 F2120-20 QN34 (EVI) Supplier Designation Type Used in Danfoss EEV 034G5000 ETS6-10 F2120-8 F2120-12 EEV 034G5010 ETS6-14 F2120-16 F2120-20 Other components...

  • Page 19: Sensor Placement

    8.045 2.083 4.69 2.50 6.514 1.916 4.10 2.33 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 F2120 Chapter 4 | Component description...
  • Page 20 2.644 1.80 2.186 1.59 1.817 1.39 1.518 1.22 1.274 1.07 1.075 0.93 0.911 0.81 0.775 0.71 0.662 0.62 0.568 0.54 0.490 0.47 0.4233 0.41 0.367 0.36 0.320 0.32 0.280 0.28 0.245 0.25 0.216 0.22 Chapter 4 | Component description F2120...

  • Page 21: Troubleshooting

    ■ Closed thermostats in several rooms. – Set the thermostats to max in as many rooms as Ensure that the F2120 is connected to the power possible. ■ source and that compressor operation is required. Incorrect settings in indoor module or control module.

  • Page 22: Alarm List

    No harm in acknowledging an alarm. If the cause of the alarm remains, the alarm recurs. the installation. F2120-Alarm The following alarm blocks the outdoor unit. The additional heat is controlled by the indoor module/control module so that the min. permitted supply temperature is achieved.
  • Page 23 Loose cables between inverter and board broken. base board - Defective circuit board for inverter in F2120 - Defective base board in F2120 Recurring safety de- Safety defrost 10 times in a row. - Air flow through evaporator frost - Strong wind against fan...
  • Page 24 3 times within 2 hours. Inverter alarm type II Capacity from inverter temporarily Problem with voltage in to F2120. too high, 3 times within 2 hours. Inverter error Too low incoming voltage temper- Incoming voltage too low (1x230V ature to F2120.
  • Page 25 F2120- Information messages The following information messages can block the outdoor unit. The additional heat is controlled by the indoor module/control module so that the min. permitted supply temperature is achieved. In the event of information messages in the outdoor unit, a red lamp with the text “Error” will flash on the base board, see image above the base board on page 15.
  • Page 26 3 times within 2 hours. Inverter alarm type II Capacity from inverter temporarily Problem with voltage in to F2120. too high, 3 times within 2 hours. Inverter error Too low incoming voltage temper- Incoming voltage too low (1x230V ature to F2120.

  • Page 27: Removing The Covers

    Cut the current with the circuit breaker before carrying out any servicing. F2120 can contain liquids at high temperature and under high pressure. When replacing components on F2120 only re- placement parts from NIBE may be used.

  • Page 28: Technical Data

    7 Technical data Dimensions and setting-out coordinates F2120-8 F2120 Ø52 1055 Ø40 1130 F2120-12, -16, -20 F2120 Ø52 1205 Ø40 1280 Chapter 7 | Technical data F2120...

  • Page 29: Technical Specifications

    0.45 (4.5 bar) Min/Max flow 0.08 / 0.32 0.11 / 0.44 Min/Max HM temp continuous operation °C 26 / 65 Connection heating medium F2120 G1 1/4" external thread Connection heating medium flex pipe G1 external thread F2120 Chapter 7 | Technical data...
  • Page 30 F2120 – 1x230V Dimensions and weight Width 1,130 1,280 Depth Height with stand 1,070 1,165 Weight (excl. packaging) (excl. packaging) Miscellaneous Enclosure class IP24 Colour grey Part No. 064 134 064 136 F2120 – 2x230V Heating Output data according to EN 14511, partial load...
  • Page 31 0.45 (4.5 bar) Min/Max flow 0.08 / 0.32 0.11 / 0.44 Min/Max HM temp continuous operation °C 26 / 65 Connection heating medium F2120 G1 1/4" external thread Connection heating medium flex pipe G1 external thread Dimensions and weight Width 1,130...
  • Page 32 Min flow defrosting (100 % pump speed) 0.27 0.35 0.38 0.48 Min/Max HM temp continuous operation °C 26 / 65 Connection heating medium F2120 G1 1/4" external thread Connection heating medium flex pipe G1 external thread G1 1/4" external thread Dimensions and weight Width...
  • Page 33 F2120 – 3x400V Miscellaneous Enclosure class IP24 Part No. 064 135 064 137 064139 064 141 SCOP & Pdesign F2120 according to EN 14825 F2120 Pdesign SCOP Pdesign SCOP Pdesign SCOP Pdesign SCOP SCOP 35 Average cli- 4.80 4.83 5.05 5.05...

  • Page 34: Accessories

    Not all accessories are available on all markets. Part no. 069 430 Condensation water pipe Condensation water pipe, different lengths. VVM 310 With integrated EMK 310 KVR 10-10 F2120 Part no. 069 084 1 metres Part no. 067 549 VVM320 KVR 10-30 F2120...

  • Page 35: Item Register

    Addressing via multi-heat pump operation, 16 High room temperature, 21 Ice build-up in the fan, grille and/or fan cone, 21 Large amount of water below F2120, 21 Basic actions, 21 Low hot water temperature or no hot water, 21 Low room temperature, 21...
  • Page 40 WS name: -Gemensamt WS version: a400 WS release date: 2017-06-28 14:16 Publish date: 2017-08-02 08:48 NIBE AB Sweden Hannabadsvägen 5 Box 14 SE-285 21 Markaryd info@nibe.se www.nibe.eu...

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