Daikin EGSQH10S18AA9W Service Manual
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Daikin EGSQH10S18AA9W Service Manual

Ground source heat pump
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ESIE13-03
Version 2.0
Service
Manual
Ground source heat pump
EGSQH10S18AA9W

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Summary of Contents for Daikin EGSQH10S18AA9W

  • Page 1 ESIE13-03 Version 2.0 Service Manual Ground source heat pump EGSQH10S18AA9W...
  • Page 2 ESIE13-03 The present publication is drawn up by way of information only and does not constitute an offer binding upon Daikin Europe N.V.. Daikin Europe N.V. has compiled the content of this publication to the best of its knowledge. No express or implied warranty is given for the completeness, accuracy, reliability or fitness for particular purpose of its content and the products and services presented therein.

  • Page 3: Table Of Contents

    Ground source heat pump ESIE13-03 Table of contents Part 1. Introduction ........................9 1. Version log ..............................9 2. Safety precautions ............................9 2.1. Meaning of symbols ............................9 2.2. Warnings ................................. 10 2.3. Cautions ................................11 2.4. Information ..............................12 3. General operation of ground source heat pump ..................13 4.
  • Page 4 Ground source heat pump ESIE13-03 2.26. “LC” – Transmission system abnormality ...................... 28 2.27. “LH” – Converter attention ..........................29 2.28. “L1” – Refrigerant/brine PCB abnormality ..................... 29 2.29. “L4” – Radiation fin temperature abnormality ....................29 2.30. “L5” – Output overcurrent detection ......................30 2.31.
  • Page 5 1.3.1. Required products when servicing the Daikin Altherma GSHP ..............84 1.4. Tools ................................84 1.4.1. Required special tooling when servicing the Daikin Altherma GSHP ............84 2. Unit specific repair procedures ........................85 2.1. Unit specific refrigerant, brine and water procedures ..................85 2.1.1.
  • Page 6 Ground source heat pump ESIE13-03 Part 4. Main tenance ............................149 1. Yearly maintenance intervals and procedures ..................149 2. Maintenance procedures ......................... 149 2.1. Checking fluid pressure of Space Heating and brine circuit ................149 2.2. Checking for brine leakage ........................... 150 2.3.
  • Page 7 Ground source heat pump ESIE13-03 List of figures Required tools for component check .........................54 Required products ..............................84 Required tools ................................84 Removing the front panel ............................85 Refrigerant service ports ............................86 Draining the brine circuit ............................87 Draining the water circuit ............................88 Removing the top panel ............................88 Removing the switch box cover ..........................89 Opening the sound insulation of the heat pump module ...................90 Unlocking the pivoting power input section .......................91...
  • Page 8 Ground source heat pump ESIE13-03 Replacing the refrigerant high pressure sensor - 3 ....................140 Replacing the refrigerant high pressure switch - 1 ....................141 Replacing the refrigerant high pressure switch - 2 ....................141 Replacing the refrigerant high pressure switch - 3 ....................142 Replacing the refrigerant high pressure sensor - 3 ....................

  • Page 9: Part 1. Introduction

    Ground source heat pump ESIE13-03 Part 1. Introduction 1. Version log Part 1. Introduction 1. Version log Version history. Version code Description Date Draft 0.1 Preliminary release 20/12/2013 Version 2.0 Addition of hyperlinks from troubleshooting tables towards check and replacement pro- 13/01/2014 cedures Version 2.0...

  • Page 10: Warnings

    ARNING Make sure installation, testing and applied materials comply with applicable legislation (on top of the instructions described in the Daikin documentation). ARNING Make sure the work site environment is clean and safe to work in. Beware of spilled fluids, like water, oil or other sub- stances.

  • Page 11: Cautions

    Ground source heat pump ESIE13-03 Part 1. Introduction 2. Safety precautions ARNING Always recover the refrigerants. Do NOT release them directly into the environment. Use a vacuum pump to evacuate the installation. Take sufficient precautions in case of refrigerant leakage. If refrigerant gas leaks, ventilate the area immediately. Possible risks: •...

  • Page 12: Information

    Ground source heat pump ESIE13-03 Part 1. Introduction 2. Safety precautions 2.4. Information NFORMATION Make sure refrigerant piping installation complies with applicable legislation. In Europe, EN378 is the applicable stand- ard. NFORMATION Make sure the field piping and connections are not subjected to stress. Page 12 13/05/15 Version 2.0...

  • Page 13: General Operation Of Ground Source Heat Pump

    Ground source heat pump ESIE13-03 Part 1. Introduction 3. General operation of ground source heat pump 3. General operation of ground source heat pump The total ground source heat pump system consists out of 3 loops: brine, refrigerant and water. 2 plate heat exchangers transmit the heat from the brine to the refrigerant and from refrigerant to water, which is then used for space heating or domestic hot water.
  • Page 14 Ground source heat pump ESIE13-03 Part 1. Introduction 3. General operation of ground source heat pump When space heating thermo on is decided: • The brine pump will start operating with a continuous speed. • The inverter water pump will gradually adjust its speed to reach and maintain the required delta T (this is the water temperature difference between the leaving water and entering water (refer to field setting [9-09] in "Field settings"...

  • Page 15: How To Use This Book

    4.1. Interactive information flow This Daikin product Service Manual is intended for professional use only. The actions described hereafter, are only to be performed by qualified and certified persons, taking into account the safety precautions mentioned in this manual and the local regulations as well.

  • Page 16: Parts Of The Book

    4.2. Parts of the book This Daikin product Service Manual is intended for professional use only. The actions described hereafter, are only to be performed by qualified and certified persons, taking into account the safety precautions mentioned in this manual and the local regulations as well.

  • Page 17: Part 2. Troubleshooting

    Ground source heat pump ESIE13-03 Part 2. Troubleshooting 1. Error codes Part 2. Troubleshooting This part contains the following chapters: 1. Error codes .................17 3. Symptom based troubleshooting ..........37 2. Error code based troubleshooting..........20 4. Component checklist..............54 1. Error codes 1.1.

  • Page 18: How To Reset Error Codes

    Ground source heat pump ESIE13-03 Part 2. Troubleshooting 1. Error codes 1.2. How to reset error codes When the problem is solved, you can reset the error by pushing the OK-button unless otherwise mentioned on the screen. NFORMATION For U3 error for example, you need to be in installer mode to reset. 1.3.
  • Page 19 Ground source heat pump ESIE13-03 Part 2. Troubleshooting 1. Error codes To enter "Monitor mode," press the MODE (BS1) <Display of RETURN 2> button when in "Setting mode 1." When SET (BS2) button is pressed, the LED display for RETURN 2 turns ON. <Selection of retry or error item>...

  • Page 20: Error Code Based Troubleshooting

    Ground source heat pump ESIE13-03 Part 2. Troubleshooting 2. Error code based troubleshooting 2. Error code based troubleshooting Overview of error codes: “AA” – Back up heater safety error ..........20 “LH” – Converter attention ..............29 “AH” – Disinfection operation error ..........21 “L1”...

  • Page 21: Ah" - Disinfection Operation Error

    Ground source heat pump ESIE13-03 Part 2. Troubleshooting 2. Error code based troubleshooting 2.2. “AH” – Disinfection operation error Trigger Effect Reset Disinfection setpoint is not reached or not Unit will continue operating. Auto-reset when next disinfection is com- kept for requested time. pleted.

  • Page 22: Cj-02" - User Interface Room Temperature Error

    Ground source heat pump ESIE13-03 Part 2. Troubleshooting 2. Error code based troubleshooting 2.5. “CJ-02” – User interface room temperature error Trigger Effect Reset Room temperature thermistor of user Unit will keep operating. Auto-reset. interface detects an abnormal value (open or short circuit).

  • Page 23: E1" - Refrigerant/Brine Pcb Abnormality

    Ground source heat pump ESIE13-03 Part 2. Troubleshooting 2. Error code based troubleshooting 2.9. “E1” – Refrigerant/brine PCB abnormality Trigger Effect Reset Refrigerant/brine PCB A9P detects EEP- Unit will stop operating. Via user interface. ROM is abnormal. Possible cause Check Corrective action Faulty refrigerant/brine PCB A9P.

  • Page 24: E7" - Brine Flow Error

    Ground source heat pump ESIE13-03 Part 2. Troubleshooting 2. Error code based troubleshooting Refrigerant circuit is clogged (HP - LP Check for possible blockage (blockages > 0,26 MPa). can be checked by measuring the refriger- ant/pipe temperature. Sudden drop in temperature could indicate a blockage (remark: this is not valid for the expansion valve)).

  • Page 25: E9" - Expansion Valve Abnormality

    Ground source heat pump ESIE13-03 Part 2. Troubleshooting 2. Error code based troubleshooting 2.13. “E9” – Expansion valve abnormality Trigger Effect Reset 1. No continuity of expansion valve. Unit will stop operating. Via user interface (power reset might be 2. Minimum expansion valve opening and necessary in case no common power sup- suction superheat <...

  • Page 26: Hc" - Domestic Hot Water Temperature Error

    Ground source heat pump ESIE13-03 Part 2. Troubleshooting 2. Error code based troubleshooting 2.15. “HC” – Domestic hot water temperature error Trigger Effect Reset R5T (A1P) detects abnormal value (open Unit will keep operating. Auto reset when problem is solved. or short circuit).

  • Page 27: H9" - Outdoor Air Thermistor (R1T) Abnormality

    Ground source heat pump ESIE13-03 Part 2. Troubleshooting 2. Error code based troubleshooting 2.19. “H9” – Outdoor air thermistor (R1T) abnormality Trigger Effect Reset Thermistor detects an abnormal value Unit stops operating. Auto-reset when problem is solved. (open or short circuit). Possible cause Check Corrective action...

  • Page 28: J6" - Heat Exchanger Refrigerant Inlet Thermistor (R4T) Abnormality

    Ground source heat pump ESIE13-03 Part 2. Troubleshooting 2. Error code based troubleshooting 2.23. “J6” – Heat exchanger refrigerant inlet thermistor (R4T) abnormality Trigger Effect Reset Heat exchanger refrigerant inlet thermis- Unit stops operating. Auto-reset when problem is solved. tor detects an abnormal value (open or short circuit).

  • Page 29: Lh" - Converter Attention

    Ground source heat pump ESIE13-03 Part 2. Troubleshooting 2. Error code based troubleshooting 2.27. “LH” – Converter attention Trigger Effect Reset Current sensor on refrigerant/brine PCB Unit will continue operating. Auto-reset. A9P is broken. Possible cause Check Corrective action Faulty PCB A9P. Replace PCB A9P (see page 96).

  • Page 30: L5" - Output Overcurrent Detection

    Ground source heat pump ESIE13-03 Part 2. Troubleshooting 2. Error code based troubleshooting 2.30. “L5” – Output overcurrent detection Trigger Effect Reset Inverter PCB detects overcurrent to power Unit will stop operating. Via user interface. transistor. Possible cause Check Corrective action Refrigerant circuit is clogged.

  • Page 31: P1" - Open Phase Or Power Supply Voltage Imbalance

    Ground source heat pump ESIE13-03 Part 2. Troubleshooting 2. Error code based troubleshooting 2.33. “P1” – Open phase or power supply voltage imbalance Trigger Effect Reset Inverter PCB detects incorrect power sup- Unit will stop operating. Auto-return. ply. Possible cause Check Corrective action Power supply is not OK ->...

  • Page 32: U0" - Refrigerant Shortage

    Ground source heat pump ESIE13-03 Part 2. Troubleshooting 2. Error code based troubleshooting Faulty inverter PCB A10P. Check if the correct spare part PCB was Replace inverter PCB A10P (see installed. page 97). Faulty refrigerant/brine main PCB A9P. Check if the correct spare part PCB was Replace refrigerant/brine main PCB A9P installed.

  • Page 33: U2" - Power Supply Voltage Abnormality

    Ground source heat pump ESIE13-03 Part 2. Troubleshooting 2. Error code based troubleshooting 2.39. “U2” – Power supply voltage abnormality Trigger Effect Reset Inverter PCB detects an abnormal power Unit will stop operating. Via user interface. supply (drop or peak). Possible cause Check Corrective action...

  • Page 34: U5-00" - Transmission Error Between User Interface And Hydro Pcb

    Ground source heat pump ESIE13-03 Part 2. Troubleshooting 2. Error code based troubleshooting 2.42. “U5-00” – Transmission error between user interface and hydro PCB Trigger Effect Reset Hydro PCB detects abnormal transmis- Unit will stop operation. Auto-reset. sion to user interface for a certain time. Possible cause Check Corrective action...

  • Page 35: 7H-04" - Water Flow Abnormality During Dhw Operation

    Ground source heat pump ESIE13-03 Part 2. Troubleshooting 2. Error code based troubleshooting Faulty 3-way valve for DHW/SPH M3S. Check 3-way valve for DHW/SPH M3S Replace 3-way valve M3S (see page 125 (see page 79). page 128). Faulty shut off valve. Check shut off valve.

  • Page 36: 8F" - Backup Heater Outlet Water Temperature Error During Domestic Hot Water Operation

    Ground source heat pump ESIE13-03 Part 2. Troubleshooting 2. Error code based troubleshooting 2.46. “8F” – Backup heater outlet water temperature error during domestic hot water operation Trigger Effect Reset R2T (A1P) detects temperature above Unit will stop operating. Via user interface. 75°C during domestic hot water operation.

  • Page 37: Symptom Based Troubleshooting

    3. Symptom based troubleshooting 3. Symptom based troubleshooting By deeply analysing the system's components and logic, Daikin offers enhanced symptom based troubleshooting. To provide the best troubleshooting efficiency, the related root cause categories for each symptom are ranked. The following ranking is used: software control functions, end user related, parameter settings, installation related, component (mechanical or electrical) issues and system design related.
  • Page 38 Ground source heat pump ESIE13-03 Part 2. Troubleshooting 3. Symptom based troubleshooting Possible failures Root cause Check Corrective action Compressor (M1C) frequency This protection control acti- Activation of the protection Based on the diagnosis exe- limited - suction pipe super- vates when suction superheat function can be caused by var- cute one of the following...
  • Page 39 Ground source heat pump ESIE13-03 Part 2. Troubleshooting 3. Symptom based troubleshooting Possible failures Root cause Check Corrective action Brine filter (FI1) (partially) Dirty brine. Check brine filter. • Clean the brine filter (see blocked. page 98). • Check the brine quality. Evaporator (partially) blocked Dirty brine.

  • Page 40: Capacity Shortage - Space Heating

    Ground source heat pump ESIE13-03 Part 2. Troubleshooting 3. Symptom based troubleshooting Possible failures Root cause Check Corrective action Root cause category: system design Brine circuit too small. Incorrect design - brine circuit Check temperature difference Modify the brine system. too small.

  • Page 41: Capacity Shortage - Domestic Hot Water Operation

    Ground source heat pump ESIE13-03 Part 2. Troubleshooting 3. Symptom based troubleshooting Possible failures Root cause Check Corrective action Root cause category: component - electrical 3-way valve blocked. Component failure. Check the 3-way valve(see Replace the 3-way valve (see page 79).

  • Page 42: The System Does Not Start/Operate

    Ground source heat pump ESIE13-03 Part 2. Troubleshooting 3. Symptom based troubleshooting Possible failures Root cause Check Corrective action Root cause category: component - electrical 3-way valve blocked. Component failure. Check the 3-way valve (see Replace the 3-way valve (see page 79).
  • Page 43 Ground source heat pump ESIE13-03 Part 2. Troubleshooting 3. Symptom based troubleshooting Possible failures Root cause Check Corrective action Out of operation range Ambient temperature No action - unit cannot operate when (ambient temperature higher than 35°C. ambient temperature is above 35°C. above 35°C).

  • Page 44: Inaccurate Temperature Control (For Both Domestic Hot Water And Space Heating Operation)

    Ground source heat pump ESIE13-03 Part 2. Troubleshooting 3. Symptom based troubleshooting Possible failures Root cause Check Corrective action Deviation of brine leaving • Component problem. Check thermistor R6T - A9P (see If required replace thermis- (R6T - A9P) thermistor can page 58).

  • Page 45: Water Leakage Or Water Release Via The Water Pressure Relieve Valve

    Ground source heat pump ESIE13-03 Part 2. Troubleshooting 3. Symptom based troubleshooting Possible failures Root cause Check Corrective action Root cause category: component - electrical Leaving water thermistor • Deviation of thermistor Check thermistor R1Tin (see Replace R1T or PCB A1P (see (R1Tin - A1P) deviation (lower temperature page...

  • Page 46: Brine Leakage

    Ground source heat pump ESIE13-03 Part 2. Troubleshooting 3. Symptom based troubleshooting 3.7. Brine leakage Possible failures Root cause Check Corrective action Root cause category: installation Drain connection of brine Bad connection between unit Check the drain connection of Correct the drain connection if safety valve (SV1) leaking.

  • Page 47: Increased Sound Level - Brine Pump

    Ground source heat pump ESIE13-03 Part 2. Troubleshooting 3. Symptom based troubleshooting Possible failures Root cause Check Corrective action Backup heater equilibrium Setting "equilibrium tempera- Check setting [5-01]. Change setting [5-01] to less point was set too high. ture" [5-01] was set too high. quickly allow backup heater operation.

  • Page 48: Increased Sound Level - Water Pump

    Ground source heat pump ESIE13-03 Part 2. Troubleshooting 3. Symptom based troubleshooting 3.10. Increased sound level - water pump Possible failures Root cause Check Corrective action Root cause category: installation Water filter (FI2) blocked. Dirty water. • Check water filter. Clean the water filter (see page 100).

  • Page 49: Tapping Water Related

    Ground source heat pump ESIE13-03 Part 2. Troubleshooting 3. Symptom based troubleshooting 3.12. Tapping water related 3.12.1. High water pressure at tapping point Possible failures Root cause Check Corrective action Root cause category: component - mechanical Safety valve water side (SV2) Component failure.

  • Page 50: Compressor Related

    Ground source heat pump ESIE13-03 Part 2. Troubleshooting 3. Symptom based troubleshooting 3.13. Compressor related 3.13.1. Compressor does not start Possible failures Root cause Check Corrective action Root cause category: software control Compressor (M1C) does not Special software control acti- Normal unit operation - no start because water loop tem- vated - Water loop tempera-...
  • Page 51 Ground source heat pump ESIE13-03 Part 2. Troubleshooting 3. Symptom based troubleshooting Possible failures Root cause Check Corrective action Compressor (M1C) frequency This protection control acti- Activation of the protection Based on the diagnosis exe- limited - suction pipe super- vates when suction superheat function can be caused by var- cute one of the following...

  • Page 52: Pump Related

    Ground source heat pump ESIE13-03 Part 2. Troubleshooting 3. Symptom based troubleshooting 3.14. Pump related 3.14.1. Brine pump behavior Possible failures Root cause Check Corrective action Root cause category: software control Unexpected brine pump Brine pump software control. Brine pump start/stop condi- behavior.

  • Page 53: User Interface (No Or Strange Display)

    Ground source heat pump ESIE13-03 Part 2. Troubleshooting 3. Symptom based troubleshooting 3.15. User interface (no or strange display) Possible failures Root cause Check Corrective action Root cause category: component - electrical Hydro PCB A1P not opera- • No power supply •...

  • Page 54: Component Checklist

    Ground source heat pump ESIE13-03 Part 2. Troubleshooting 4. Component checklist 4. Component checklist Overview of component checklists: Required tools for component check ..........54 Compressor M1C................69 Backup heater E1H, E2H ............... 54 High pressure sensor B1PH ............70 Thermistors R1T, R2T, R3T, R4T, R5T, R6T, R10T ......58 High pressure switch S1PH ............71 Safety valve SV1, SV2 (pressure relief valve)........
  • Page 55 ESIE13-03 Part 2. Troubleshooting 4. Component checklist Preliminary check Switch off the Daikin Altherma GSHP via the user interface. Remove the front panel, refer to "Removing the front panel" on page Remove the switch box cover, refer to "Removing the switch box cover" on page Check circuit breaker F1B;...
  • Page 56 Overall power circuit check Unplug the connector X1H. Power the Daikin Altherma GSHP. Activate “Installer level” on the user interface, refer to “Installer Level Settings” on the user interface are available in the Installer Reference Guide, paragraph To access the most used commands.
  • Page 57 Ground source heat pump ESIE13-03 Part 2. Troubleshooting 4. Component checklist Confirm correct operation of K2M: Between contactor K2M 1 - 3, K2M 3 - 5 and K2M 1 - 5; all voltages must be 400 VAC ±10%. Between contactor K2M 2 - 4, K2M 4 - 6 and K2M 2 - 6; all voltages must be 400 VAC ±10%. If voltage are OK on pins 2 - 4 - 6 but not on pins 1 - 3 - 5, replace K2M.

  • Page 58: Thermistors R1T, R2T, R3T, R4T, R5T, R6T, R10T

    Switch box Unit Check procedure Mechanical check Switch off the Daikin Altherma GSHP via the user interface. Locate the thermistor and check if thermal contact with the piping or ambient is ensured. Electrical check NFORMATION If a thermistor check fails, replace the thermistor.
  • Page 59 Ground source heat pump ESIE13-03 Part 2. Troubleshooting 4. Component checklist NFORMATION All thermistors have a tolerance of 5%. E.g. thermistor R4T (A9P): • Measured temperature with contact thermometer: 23.1°C. • Unplug the sensor and measure the resistance between X12A: 5-6: 21.3 kOhm. •...
  • Page 60 Ground source heat pump ESIE13-03 Part 2. Troubleshooting 4. Component checklist Table 2-2: Thermistor resistance / temperature characteristics Sensor type 1 Sensor type 2 Sensor type 3 T°C kΩ T°C kΩ T°C kΩ 361.7719 3257.371 354.1 265.4704 2429.222 259.7 196.9198 1827.883 192.6 147.5687...

  • Page 61: Safety Valve Sv1, Sv2 (Pressure Relief Valve)

    Mechanical check Switch off the Daikin Altherma GSHP via the user interface. Remove the front panel, refer to the Daikin Altherma ground source heat pump Installer reference guide (EGSQH10S18AA9W). Turn the brine pressure relief valve knob 1 turn and listen if brine exits for a short moment.

  • Page 62: Expansion Vessel Exp1, Exp2

    Using a manometer, measure the pressure at the Schrader valve of the expansion vessel EXP2. For the correct expansion vessel EXP2 pressure, refer to “Changing the pre-pressure of the expansion vessel in the Daikin Altherma ground source heat pump Installer reference guide (EGSQH10S18AA9W).

  • Page 63: Brine Flow Switch S1L

    EXP1 PLIED Check procedure Mechanical check Switch off the Daikin Altherma GSHP via the user interface. Drain the brine circuit, refer to "Draining the brine circuit" on page Loosen the brine flow switch nut. Remove the brine flow switch and check that the paddle can move without applying force.

  • Page 64: Brine Pump M3P

    Remove the front panel, refer to the Daikin Altherma ground source heat pump Installer reference guide (EGSQH10S18AA9W). Remove the switch box cover, refer to the Daikin Altherma ground source heat pump Installer reference guide (EGSQH10S18AA9W). Unplug the connector X18A on the A9P PCB.
  • Page 65 Electrical check NFORMATION Highest speed brine pump speed (3 leds on) should always be enabled. Switch off the Daikin Altherma GSHP via the user interface. Remove the front panel, refer to "Removing the front panel" on page Open the Sound Insulation (Front Side Only), refer to "Opening the sound insulation of the heat pump module (front side only)"...

  • Page 66: Water Pump M1P

    PURGE Check procedure Mechanical check Switch off the Daikin Altherma GSHP via the user interface. Drain the water circuit. Remove the 4 screws that fix the pump motor to the pump house. Separate the pump motor from the pump house.

  • Page 67: Plate Type Heat Exchanger Phe1, Phe2

    Ground source heat pump ESIE13-03 Part 2. Troubleshooting 4. Component checklist LED Status Meaning Diagnostic Cause Corrective action Lights green Pump in operation Pump runs according to its setting Blinks green (fast) PWM model Pump in stand-by Normal operation Blinks red/green Pump in operation Pump will restart after Undervoltage U <...
  • Page 68 "Opening the sound insulation of the heat pump module (front side only)" on page Power the Daikin Altherma GSHP and activate domestic hot water or space heating and wait 15 minutes. Activate “Installer level” on the user interface, refer to “Installer Level Settings” on the user interface are available in the Installer Reference Guide, paragraph 8.1.2 To access the most used commands.

  • Page 69: Compressor M1C

    (*) Depicted is example for com Check procedure Electrical check Switch off the Daikin Altherma GSHP via the user interface. Remove the switch box cover, refer to "Removing the switch box cover" on page Disconnect the connectors U, V and W from PCB A10P.

  • Page 70: High Pressure Sensor B1Ph

    Check procedure Electrical check Switch off the Daikin Altherma GSHP via the user interface. Remove the switch box cover, refer to "Removing the switch box cover" on page Open the Sound Insulation (Front Side Only), refer to "Opening the sound insulation of the heat pump module (front side only)"...

  • Page 71: High Pressure Switch S1Ph

    ESIE13-03 Part 2. Troubleshooting 4. Component checklist Power the Daikin Altherma GSHP. NFORMATION The high pressure sensor connector must be plugged into X17A on PCB A09P. Measure the voltage across connector X17A: pin 1-3; compare the measured voltage with the expected voltage.

  • Page 72: Electronic Expansion Valve K1E

    4. Component checklist Electrical check Switch off the Daikin Altherma GSHP via the user interface. Remove the switch box cover, refer to the Daikin Altherma ground source heat pump Installer reference guide (EGSQH10S18AA9W). Disconnect the connector X111A from PCB A10P.

  • Page 73: Thermal Protector Backup Heater Q1L

    "Replacing the electronic expansion valve K1E body" on page 133. Electrical check Switch off the Daikin Altherma GSHP via the user interface. Remove the switch box cover, refer to "Removing the switch box cover" on page Disconnect the connector X21A from PCB A9P.
  • Page 74 Heat the water and measure the temperature of the water. The thermal protector backup heater Q1L must trip at approximately 92°C. Electrical check Switch off the Daikin Altherma GSHP via the user interface. Remove the switch box cover, refer to "Removing the switch box cover" on page Remove the 2 screws that fix the thermal protector backup heater Q1L.

  • Page 75: Inverter Pcb A10P

    Unit Check procedure Electrical check Switch off the Daikin Altherma GSHP with the field supplied power circuit breaker. Remove the switch box cover, refer to "Removing the switch box cover" on page Disconnect X7Y and connect extension wire compressor (SPP number 5008826) to X7Y and to the Inverter Analyzer (SPP number 1368521).
  • Page 76 Ground source heat pump ESIE13-03 Part 2. Troubleshooting 4. Component checklist Locate the LEDS on inverter PCB A10P: LED status Blink H2P H3P H4P H5P H6P H7P Normal H1P H2P H3P H4P H5P H6P H7P press and hold BS1 LED status (entered monitor mode) for 5 seconds, H1P H2P H3P H4P H5P H6P H7P LED status (after pressing BS2 twice)

  • Page 77: Water Flow Sensor B1L

    Check that the arrow on flow sensor B1L matches the flow direction (arrow must point to the left). Electrical check Switch off the Daikin Altherma GSHP via the user interface. Remove the switch box cover, refer to "Removing the switch box cover" on page Power the Daikin Altherma GSHP.
  • Page 78 Ground source heat pump ESIE13-03 Part 2. Troubleshooting 4. Component checklist If the measured voltage is outside the expected range replace water flow sensor B1L, refer to "Replacing the water flow sensor" on page 104; if the measured voltage does not correspond with the displayed flow on the user interface, replace PCB A1P, refer to "Procedure: replacing the A1P PCB"...

  • Page 79: 3-Way Valve M3S

    TANK FIELD SUPPLIE Check procedure Mechanical check Switch off the Daikin Altherma GSHP via the user interface. Remove the top panel, refer to "Removing the top panel" on page Check that the knob is fully pressed (= motor control). Check that the knob is either in domestic hot water or space heating position but not in an intermediate position.
  • Page 80 Ground source heat pump ESIE13-03 Part 2. Troubleshooting 4. Component checklist Measure the voltage on connector X28A: pin 1-3 on PCB A1P; if no 230 VAC is present: check fuse FU1 on PCB A1P, replace if blown, replace PCB A1P. Measure the voltage on connector X28A: pin 2 and X20A: pin 1 on PCB A1P;...
  • Page 81 Ground source heat pump ESIE13-03 Part 2. Troubleshooting 4. Component checklist DOMESTIC HOT WATER SPACE HEATING 13/05/15 Version 2.0 Page 81...
  • Page 82 Ground source heat pump ESIE13-03 Part 2. Troubleshooting 4. Component checklist Page 82 13/05/15 Version 2.0...

  • Page 83: Part 3. Repair

    Ground source heat pump ESIE13-03 Part 3. Repair 1. General Repair procedures Part 3. Repair Refrigerant handling procedures ............83 Air purge of the space heating circuit..........88 Pipe work procedures ..............83 Draining the domestic hot water tank..........88 Removing the front panel..............85 Removing the top panel ..............

  • Page 84: Products

    1.3. Products 1.3.1. Required products when servicing the Daikin Altherma GSHP Some Daikin Altherma GSHP parts are sealed and must be sealed again after replacement. Only use the same thread sealant (1) whenever required. When replacing R10T it might be necessary to apply some heat sink compound (2).

  • Page 85: Unit Specific Repair Procedures

    2.1. Unit specific refrigerant, brine and water procedures 2.1.1. Removing the front panel Switch off the Daikin Altherma GSHP via the user interface. ARNING The front panel is heavy. Be careful not to jam your fingers when opening the unit.

  • Page 86: Refrigerant Handling

    Recover Vacuum Charge 2.1.2.1 Procedure Switch off the Daikin Altherma GSHP via the user interface. Remove the front panel, "Removing the front panel" on page Open the sound insulation of the heat pump module (front side), refer to "Opening the sound insulation of the heat pump module (front side only)"...

  • Page 87: Air Purge Of The Brine Circuit

    To perform an air purge or the brine circuit, refer to the instructions of the field supplied brine filling equipment. 2.1.5. Draining the water circuit 2.1.5.1 Procedure Switch off the Daikin Altherma GSHP via the user interface. Close the field supplied water shut off valves. Open the sound insulation of the heat pump module, refer to "Opening the sound insulation of the heat pump module (front...

  • Page 88: Air Purge Of The Space Heating Circuit

    2. Water circuit drain valve DR4 2.1.6. Air purge of the space heating circuit To perform an air purge, refer to “9.3 Air purge function on the space heating circuit” in the Daikin Altherma ground source heat pump Installer reference guide.

  • Page 89: Removing The Switch Box Cover

    2. Unit specific repair procedures 2.1.9. Removing the switch box cover ARNING Electrical shock hazard. Remove power from the Daikin Altherma GSHP before removing the switch box cover. Do not touch terminals. Switch off the Daikin Altherma GSHP via the user interface.

  • Page 90: Unlocking The Pivoting Power Input Section

    2. Bracket 2.1.11. Unlocking the pivoting power input section 2.1.11.1 Procedure Switch off the Daikin Altherma GSHP via the user interface. Remove the front panel, refer to "Removing the front panel" on page Loosen and remove the screw (1) that fixes the pivoting power input section (3) at the top.

  • Page 91: Unlocking The Pivoting Power Input Section

    Ground source heat pump ESIE13-03 Part 3. Repair 2. Unit specific repair procedures Figure 11 - Unlocking the pivoting power input section 1. Screw 3. Pivoting power input section 2. Screw 13/05/15 Version 2.0 Page 91...

  • Page 92: Parts Replacement Procedures

    "Draining the domestic hot water tank" on page Drain the brine circuit, refer to "Draining the brine circuit" on page Pull the Daikin Altherma GSHP from the wall to gain access to the rear panel. 2.2.1.2 Procedure Removal Loosen and remove the 8 screws (1) that fix the (lower) rear panel (2).

  • Page 93: Replacing A Pcb In The Switch Box

    Proceed in reverse order. 2.2.2. Replacing a PCB in the switch box ARNING Electrical shock hazard. Remove power from the Daikin Altherma GSHP before removing the switch box cover. Do not touch terminals. 2.2.2.1 Preliminary actions Switch off the Daikin Altherma GSHP with the field supplied circuit breaker.

  • Page 94: Replacing The A1P Pcb

    Ground source heat pump ESIE13-03 Part 3. Repair 2. Unit specific repair procedures Figure 13 - Replacing the A1P PCB 1. X33A 4. Fixation plate 2. X85A 5. A1P PCB 3. Screw 6. PCB support Installation Proceed in reverse order. 2.2.2.3 Procedure: replacing the A4P PCB Removal Unplug the connectors CN2 (3) from the A4P PCB.

  • Page 95: Replacing The A4P Pcb

    Ground source heat pump ESIE13-03 Part 3. Repair 2. Unit specific repair procedures Carefully pull the A4P PCB (4) at the right side and unlatch the 4 pcb supports (5) one by one using a small pliers. Remove the A4 PCB (4). Unplug the jumper wire from connector CN1 (6) on the A4P PCB.

  • Page 96: Replacing The A8P Pcb

    Ground source heat pump ESIE13-03 Part 3. Repair 2. Unit specific repair procedures Figure 15 - Replacing the A8P PCB 1. X80A 4. A8P PCB 2. X801 M 5. PCB support 3. X800 Installation Proceed in reverse order. 2.2.2.5 Procedure: replacing the A9P PCB Removal Unplug all connectors from the A9P PCB (1).

  • Page 97: Replacing The A9P Pcb

    Ground source heat pump ESIE13-03 Part 3. Repair 2. Unit specific repair procedures Figure 16 - Replacing the A9P PCB 1. A9P PCB 3. Frame 2. Screw 4. Catch Installation AUTION Before fixing the A9 PCB, check the PCB frame is locked by the catch. Proceed in reverse order.

  • Page 98: Cleaning The Brine Filter

    ARNING All hazardous waste shall be managed in accordance with federal, state and local regulations. 2.2.3.1 Preliminary actions Switch off the Daikin Altherma GSHP via the user interface. Remove the front panel, refer to "Removing the front panel" on page Remove the top panel, refer to "Removing the top panel"...

  • Page 99: Cleaning The Brine Filter

    Ground source heat pump ESIE13-03 Part 3. Repair 2. Unit specific repair procedures 2.2.3.2 Procedure Removal AUTION Although the brine circuit is partially drained, some brine may be spilled when removing the brine filter. Always wipe off spilled brine. Pull the velcro strip (1) to release the brine filter insulation (2). Tip over the brine filter insulation (2).

  • Page 100: Cleaning The Water Filter

    Figure 19 - Brine filter installation Proceed in reverse order. Fill the brine circuit, refer to “To fill the brine circuit” in the Daikin Altherma ground source heat pump Installer reference guide. Check the brine concentration. 2.2.4. Cleaning the water filter 2.2.4.1 Preliminary actions...

  • Page 101: Cleaning The Water Filter

    Fill the water circuit, refer to “To fill the space heating circuit” in the Daikin Altherma ground source heat pump Installer reference guide. Purge the water circuit, refer to “9.3 Air purge function on the space heating circuit” in the Daikin Altherma ground source heat pump Installer reference guide.

  • Page 102: Replacing The Brine Flow Switch

    2. Unit specific repair procedures 2.2.5. Replacing the brine flow switch 2.2.5.1 Preliminary actions Switch off the Daikin Altherma GSHP via the user interface. Remove the front panel, refer to "Removing the front panel" on page Remove the switch box cover, refer to "Removing the switch box cover"...

  • Page 103: Replacing The Brine Flow Switch

    The brine flow switch paddle must be mounted vertically with the wire exiting at the bottom. NFORMATION Use the pull line (3) to guide the brine flow switch wire (4) from the bottom of the Daikin Altherma GSHP through the grommet (7) next to connector X18A (1) on A10P PCB (2).

  • Page 104: Replacing The Water Flow Sensor

    Fill the water circuit, refer to “To fill the space heating circuit” in the Daikin Altherma ground source heat pump Installer reference guide. Purge the water circuit, refer to “9.3 Air purge function on the space heating circuit” in the Daikin Altherma ground source heat pump Installer reference guide.

  • Page 105: Replacing The Brine Pump

    2. Unit specific repair procedures 2.2.7. Replacing the brine pump 2.2.7.1 Preliminary actions Switch off the Daikin Altherma GSHP via the user interface. Remove the front panel, refer to "Removing the front panel" on page Remove the switch box cover, refer to "Removing the switch box cover"...

  • Page 106: Replacing The Backup Heater

    Make sure to connect the brine pump ground wire and the A9P PCB ground wire to the chassis. If damaged, replace the seals. Proceed in reverse order. Fill the brine circuit, refer to “To fill the brine circuit” in the Daikin Altherma ground source heat pump Installer reference guide. 2.2.8. Replacing the backup heater 2.2.8.1 Preliminary actions Switch off the Daikin Altherma GSHP via the user interface.

  • Page 107: Replacing The Backup Heater - 1

    The backup heater is still connected to the Daikin Altherma GSHP. Remove the backup heater (8), water pump (7), pressure relief valve (5) and the corrugated pipe (2) from the Daikin Altherma GSHP and lay it on a support (9).

  • Page 108: Replacing The Backup Heater - 2

    Fill the water circuit, refer to “To fill the space heating circuit” in the Daikin Altherma ground source heat pump Installer reference guide. Purge the water circuit, refer to “9.3 Air purge function on the space heating circuit” in the Daikin Altherma ground source heat pump Installer reference guide.

  • Page 109: Replacing The Thermal Protector Backup Heater

    2. Unit specific repair procedures 2.2.9. Replacing the thermal protector backup heater 2.2.9.1 Preliminary actions Switch off the Daikin Altherma GSHP via the user interface. Remove the front panel, refer to "Removing the front panel" on page Remove the switch box cover, refer to "Removing the switch box cover"...

  • Page 110: Replacing The Water Pressure Relief Valve

    The backup heater is still connected to the Daikin Altherma GSHP. Remove the backup heater (8), water pump (7), water pressure relief valve (5) and the corrugated pipe (2) from the Daikin Altherma GSHP and lay the assembly on a support (9).

  • Page 111: Replacing The Water Pressure Relief Valve - 1

    Ground source heat pump ESIE13-03 Part 3. Repair 2. Unit specific repair procedures Figure 28 - Replacing the water pressure relief valve - 1 1. Lower nut 6. Clip 2. Corrugated pipe 7. Water pump 3. Seal 8. Backup heater 4.

  • Page 112: Replacing The Water Pressure Relief Valve - 2

    Ground source heat pump ESIE13-03 Part 3. Repair 2. Unit specific repair procedures Figure 29 - Replacing the water pressure relief valve - 2 1. Thermal protector backup heater 7. Nut (water expansion vessel) 2. Backup heater 8. Water pressure relief valve corrugated pipe 3.

  • Page 113: Replacing The Brine Pressure Relief Valve

    Fill the water circuit, refer to “To fill the space heating circuit” in the Daikin Altherma ground source heat pump Installer reference guide. Purge the water circuit, refer to “9.3 Air purge function on the space heating circuit” in the Daikin Altherma ground source heat pump Installer reference guide.

  • Page 114: Replacing The Brine Pressure Relief Valve - 1

    Ground source heat pump ESIE13-03 Part 3. Repair 2. Unit specific repair procedures Figure 31 - Replacing the brine pressure relief valve - 1 1. Insulation 7. Nut (brine expansion vessel) 2. Brine pressure relief valve 8. Nut (drain hose) 3.

  • Page 115: Replacing The Water Pump

    When gluing the water pressure relief valve (3) to the coupling (1), make sure it is in the same angle as in figure 31 on page 114. Proceed in reverse order. Fill the brine circuit, refer to “To fill the brine circuit” in the Daikin Altherma ground source heat pump Installer reference guide. 2.2.12. Replacing the water pump 2.2.12.1 Preliminary actions Switch off the Daikin Altherma GSHP via the user interface.

  • Page 116: Replacing The Water Pump - 1

    Ground source heat pump ESIE13-03 Part 3. Repair 2. Unit specific repair procedures 2.2.12.2 Procedure NFORMATION Note the position of the backup heater, water pump, pressure relief valve and the corrugated pipe. After installation of the backup heater, it must be possible to remove the thermal protector backup heater without removing the backup heater.

  • Page 117: Replacing The Water Pump - 2

    The backup heater (9) is still connected to the Daikin Altherma GSHP. 16. Remove the backup heater (9), water pump (8), water pressure relief valve (6) and the corrugated pipe (3) from the Daikin Altherma GSHP and lay it on a support (10).

  • Page 118: Replacing The Water Pump - 3

    Ground source heat pump ESIE13-03 Part 3. Repair 2. Unit specific repair procedures Figure 35 - Replacing the water pump - 3 1. Pivoting power input section 6. Water pressure relief valve 2. Lower nut 7. Clip 3. Corrugated pipe 8.

  • Page 119: Replacing The Compressor

    Fill the water circuit, refer to “To fill the space heating circuit” in the Daikin Altherma ground source heat pump Installer reference guide. Purge the water circuit, refer to “9.3 Air purge function on the space heating circuit” in the Daikin Altherma ground source heat pump Installer reference guide.
  • Page 120 Ground source heat pump ESIE13-03 Part 3. Repair 2. Unit specific repair procedures 2.2.13.2 Procedure Removal Loosen and remove the 4 screws that fix the bracket on the rear side. Remove the bracket Open the sound insulation at the rear of the heat pump module by pulling the velcro strips From the rear side, pull the velcro strip of the compressor top insulation.

  • Page 121: Replacing The Compressor - 2

    Ground source heat pump ESIE13-03 Part 3. Repair 2. Unit specific repair procedures Figure 39 - Replacing the compressor - 2 1. Velcro strip 3. Compressor 2. Compressor insulation From the rear side, remove the compressor insulation. Remove the compressor wiring cover Unplug the 3 wires from the compressor.

  • Page 122: Replacing The Compressor - 4

    Cut the compressor refrigerant pipes as close to the compressor as possible to be able to re-use the existing copper piping when brazing the new compressor. Cut the compressor input pipe ( ) from the front of the Daikin Altherma GSHP. 10. Cut the compressor output pipe ( ) from the rear of the Daikin Altherma GSHP.

  • Page 123: Replacing The Water Expansion Vessel

    2.2.14. Replacing the water expansion vessel 2.2.14.1 Preliminary actions Switch off the Daikin Altherma GSHP via the user interface. Open the sound insulation of the heat pump module (front side), refer to "Opening the sound insulation of the heat pump module (front side only)"...

  • Page 124: Replacing The Brine Expansion Vessel

    Fill the water circuit, refer to “To fill the space heating circuit” in the Daikin Altherma ground source heat pump Installer reference guide. Purge the water circuit, refer to “9.3 Air purge function on the space heating circuit” in the Daikin Altherma ground source heat pump Installer reference guide.

  • Page 125: Replacing The 3-Way Valve Motor

    If required, adjust the pressure of the brine expansion vessel (4 ). Proceed in reverse order. Fill the brine circuit, refer to “To fill the brine circuit” in the Daikin Altherma ground source heat pump Installer reference guide. 2.2.16. Replacing the 3-way valve motor 2.2.16.1 Preliminary actions...

  • Page 126: Replacing The 3-Way Valve Motor - 2

    Ground source heat pump ESIE13-03 Part 3. Repair 2. Unit specific repair procedures Figure 44 - Replacing the 3-way valve motor - 1 1. X33A 4. Screw 2. X85A 5. Fixation plate 3. A1 PCB Unplug connectors X20A and X28A from the A1P PCB Attach a pull line of approximately 2 meter to the 3-way valve motor wire...

  • Page 127: Replacing The 3-Way Valve Motor - 3

    Ground source heat pump ESIE13-03 Part 3. Repair 2. Unit specific repair procedures 10. Pull the 3-way valve knob to remove it from the 3-way valve motor 11. Loosen the screw Figure 46 - Replacing the 3-way valve motor - 3 1.

  • Page 128: Replacing The 3-Way Valve Body

    2. 3-way valve axle 2.2.17. Replacing the 3-way valve body 2.2.17.1 Preliminary actions Switch off the Daikin Altherma GSHP via the user interface. Remove the front panel, refer to "Removing the front panel" on page Remove the top panel, refer to "Removing the top panel"...

  • Page 129: Replacing The Water Manometer

    Fill the water circuit, refer to “To fill the space heating circuit” in the Daikin Altherma ground source heat pump Installer reference guide. Purge the water circuit, refer to “9.3 Air purge function on the space heating circuit” in the Daikin Altherma ground source heat pump Installer reference guide.

  • Page 130: Replacing The Water Manometer - 1

    2. Unit specific repair procedures Through the opening in the rear of the switch box, move the manometer capillary (3) towards the top of the Daikin Altherma GSHP, while pressing the insulation where the manometer capillary (3) is attached with a tie wrap (4) to allow the nut (2) to pass.

  • Page 131: Replacing The Brine Manometer

    Fill the water circuit, refer to “To fill the space heating circuit” in the Daikin Altherma ground source heat pump Installer reference guide. Purge the water circuit, refer to “9.3 Air purge function on the space heating circuit” in the Daikin Altherma ground source heat pump Installer reference guide.

  • Page 132: Replacing The Brine Manometer

    Through the opening in the rear of the switch box (6), cut the tie wrap (5). Through the opening in the rear of the switch box, move the manometer capillary (3) towards the top of the Daikin Altherma GSHP, while pressing the insulation where the manometer capillary (3) is attached with a tie wrap (4) to allow the capillary nut to pass.

  • Page 133: Replacing The Electronic Expansion Valve K1E Body

    When installing the brine manometer, use a tie wrap to fix the capillary against the insulated pipe to ensure strain relief. Proceed in reverse order. Fill the brine circuit, refer to “To fill the brine circuit” in the Daikin Altherma ground source heat pump Installer reference guide. 2.2.20. Replacing the electronic expansion valve K1E body 2.2.20.1 Preliminary actions Remove the front panel, refer to "Removing the front panel"...

  • Page 134: Replacing The Electronic Expansion Valve K1E Body - 1

    Ground source heat pump ESIE13-03 Part 3. Repair 2. Unit specific repair procedures Figure 53 - Replacing the electronic expansion valve K1E body - 1 1. Expansion valve electromagnet 3. Insulation 2. Tie wraps 4. R4T Use a welding blanket (1) to protect the components that surround the expansion valve body. Place 2 wet cooling clamps (2) on the expansion valve body (3).

  • Page 135: Replacing The Electronic Expansion Valve K1E Electromagnet

    Ground source heat pump ESIE13-03 Part 3. Repair 2. Unit specific repair procedures Figure 54 - Replacing the electronic expansion valve K1E body - 2 1. Welding blanket 3. Expansion valve body 2. Cooling clamp Installation AUTION Use welding blankets to protect the components that surround the expansion valve body. Use 2 cooling clamps to protect the expansion valve during brazing.

  • Page 136: Replacing The Electronic Expansion Valve K1E Electromagnet

    Ground source heat pump ESIE13-03 Part 3. Repair 2. Unit specific repair procedures 2.2.21.2 Procedure Removal NFORMATION The electronic expansion valve electromagnet is replaced together with the electronic expansion valve electromagnet wire. To facilitate the installation of the new electronic expansion valve electromagnet, a pull line must be attached to the electronic expansion valve electromagnet wire before removal.

  • Page 137: Replacing The Refrigerant High Pressure Sensor

    Remove the (lower) rear panel, refer to "Removing the lower rear panel" on page Recover the refrigerant, refer to "Refrigerant Handling" on page Place the brine expansion vessel next to the Daikin Altherma GSHP, refer to "Replacing the brine expansion vessel" on page 124.

  • Page 138: Replacing The Refrigerant High Pressure Sensor - 1

    Ground source heat pump ESIE13-03 Part 3. Repair 2. Unit specific repair procedures 2.2.22.2 Procedure Removal NFORMATION The refrigerant high pressure sensor wire is replaced with the refrigerant high pressure sensor. A pull line must be attached to the refrigerant high pressure sensor wire before removing the wire. Unplug connector X17A (1) from the A9P PCB (2).

  • Page 139: Replacing The Refrigerant High Pressure Sensor - 2

    Ground source heat pump ESIE13-03 Part 3. Repair 2. Unit specific repair procedures Figure 58 - Replacing the refrigerant high pressure sensor - 2 1. Screw 4. Velcro strip 2. Bracket 5. Velcro strip (compressor) 3. Sound insulation From the front side, release the 3 velcro strips on the compressor insulation and open the compressor insulation Figure 59 - Replacing the refrigerant high pressure sensor - 3...

  • Page 140: Replacing The Refrigerant High Pressure Switch

    Ground source heat pump ESIE13-03 Part 3. Repair 2. Unit specific repair procedures 10. Remove the refrigerant high pressure sensor (2). Figure 60 - Replacing the refrigerant high pressure sensor - 3 1. Welding blanket (not illustrated) 3. Cooling clamp (not illustrated) 2.

  • Page 141: Replacing The Refrigerant High Pressure Switch - 1

    Ground source heat pump ESIE13-03 Part 3. Repair 2. Unit specific repair procedures Detach the pull line (4) from the refrigerant high pressure switch wire (3). Figure 61 - Replacing the refrigerant high pressure switch - 1 1. X32A 4. Pull line (not illustrated) 2.

  • Page 142: Replacing The Refrigerant High Pressure Switch - 3

    Ground source heat pump ESIE13-03 Part 3. Repair 2. Unit specific repair procedures Figure 63 - Replacing the refrigerant high pressure switch - 3 1. Velcro strip 3. Compressor 2. Compressor insulation From the rear side, remove the compressor insulation. Use a welding blanket (1) to protect the components that surround the refrigerant high pressure sensor (2).

  • Page 143: Replacing A Thermistor (Except R10T)

    Ground source heat pump ESIE13-03 Part 3. Repair 2. Unit specific repair procedures 2.2.24. Replacing a thermistor (except R10T) 2.2.24.1 Preliminary actions Remove the front panel, refer to "Removing the front panel" on page Remove the switch box cover, refer to "Removing the switch box cover"...

  • Page 144: Replacing A Temperature Sensor - 1

    Ground source heat pump ESIE13-03 Part 3. Repair 2. Unit specific repair procedures Thermistor Processed on PCB Connector: pin Access Information R1T in (outlet water) X5A: 1-2 Access via front of heat pump module, displace water expansion vessel, refer to "Replacing the water expansion vessel"...

  • Page 145: Replacing Temperature Sensor R10T

    Ground source heat pump ESIE13-03 Part 3. Repair 2. Unit specific repair procedures Figure 67 - Replacing a temperature sensor - 2 1. Clip 3. Sensor holder 2. Sensor Installation Proceed in reverse order. 2.2.25. Replacing temperature sensor R10T 2.2.25.1 Preliminary actions Remove the front panel, refer to "Removing the front panel"...

  • Page 146: Replacing Temperature Sensor R10T

    Ground source heat pump ESIE13-03 Part 3. Repair 2. Unit specific repair procedures Figure 68 - Replacing temperature sensor R10T 1. Screw 4. Frame 2. Screw 5. Latch 3. A10P PCB 6. X111A AUTION Do not touch the heat sink. Keep the heat sink compound clean to ensure good thermal contact after re-installation.

  • Page 147: Replacing Temperature Sensor R10T

    Ground source heat pump ESIE13-03 Part 3. Repair 2. Unit specific repair procedures Figure 69 - Replacing temperature sensor R10T 1. Tie wrap 3. R10T 2. Screw 4. Heat sink with heat conductive paste Installation AUTION If required, additional heat conductive paste can be applied to ensure good heat transfer between the heat sink and A10P PCB (part number heat sink compound: 9993008P).
  • Page 148 Ground source heat pump ESIE13-03 Part 3. Repair 2. Unit specific repair procedures Page 148 13/05/15 Version 2.0...

  • Page 149: Part 4. Main

    Ground source heat pump ESIE13-03 Part 4. Maintenance 1. Yearly maintenance intervals and procedures Part 4. Maintenance 1. Yearly maintenance intervals and procedures Following items should be checked on the product at least once a year: • Fluid pressure of Space Heating and brine circuit •...

  • Page 150: Checking For Brine Leakage

    Ground source heat pump ESIE13-03 Part 4. Maintenance 2. Maintenance procedures 2.2. Checking for brine leakage Actions Remarks Carefully check if brine leakage is noticeable around the inside of Because the brine piping might sweat in the compressor depart- the unit, mainly in the compressor department. ment, a small drain pan is mounted.

  • Page 151: Checking The Relief Valve Of The Domestic Hot Water Tank - Field Supply

    Ground source heat pump ESIE13-03 Part 4. Maintenance 2. Maintenance procedures 2.5. Checking the relief valve of the Domestic Hot Water tank - field supply Actions Remarks Open the valve and check the correct operation: Make sure that all taps and air vent are open, otherwise the tank might be sucked vacuum and the water will not move.

  • Page 152: Draining The Domestic Hot Water Tank

    Ground source heat pump ESIE13-03 Part 4. Maintenance 2. Maintenance procedures 2.7. Draining the Domestic Hot Water tank Actions Remarks • Open the front panel. • Make sure that all taps and air vent are open, otherwise the tank might be sucked vacuum and the water will not be fully •...

  • Page 153: Part 5. Appendix

    Ground source heat pump ESIE13-03 Part 5. Appendix 1. Field settings Part 5. Appendix 1. Field settings For more information, refer to table on next pages. 13/05/15 Version 2.0 Page 153...

  • Page 154: Field Settingstable 1 (Software Version Before 1/04/2015)

    Ground source heat pump ESIE13-03 Part 5. Appendix 1. Field settings 1.1. Field settingstable 1 (Software version before 1/04/2015) Figure 70 - Field settings table 1-1 Installer setting at variance with Field settings table Installer setting at variance with Field settings table default value default value Breadcrumb...

  • Page 155: Field Settings Table 1-2

    Ground source heat pump ESIE13-03 Part 5. Appendix 1. Field settings Figure 71 - Field settings table 1-2 Field settings table Installer setting at variance with Field settings table Installer setting at variance with default value default value Breadcrumb Field code Setting name Range, step Date...

  • Page 156: Field Settings Table 1-3

    Ground source heat pump ESIE13-03 Part 5. Appendix 1. Field settings Figure 72 - Field settings table 1-3 Field settings table Installer setting at variance with default value Breadcrumb Field code Setting name Range, step Date Value Default value [9-08] [9-09] What is the desired delta T in heating? 3~10°C, step: 1°C...

  • Page 157: Field Settingstable 2 (Software Version After 1/04/2015; User Interface [6.8.2] Id 4302/4562)

    Ground source heat pump ESIE13-03 Part 5. Appendix 1. Field settings 1.2. Field settingstable 2 (Software version after 1/04/2015; User interface [6.8.2] ID 4302/4562) Figure 73 - Field settings table 2-1 Field settings table Installer setting at variance with Field settings table Installer setting at variance with default value default value...

  • Page 158: Field Settings Table 2-2

    Ground source heat pump ESIE13-03 Part 5. Appendix 1. Field settings Figure 74 - Field settings table 2-2 Installer setting at variance with Field settings table Installer setting at variance with Field settings table default value default value Breadcrumb Field code Setting name Range, step Date...

  • Page 159: Field Settings Table 2-3

    Ground source heat pump ESIE13-03 Part 5. Appendix 1. Field settings Figure 75 - Field settings table 2-3 Field settings table Installer setting at variance with Installer setting at variance with Field settings table default value default value Breadcrumb Field code Setting name Range, step Date...

  • Page 160: Wiring Diagrams

    Ground source heat pump ESIE13-03 Part 5. Appendix 2. Wiring diagrams 2. Wiring diagrams Wiring diagram 1 Figure 76 - Wiring diagram 1 (switchbox layout) muffler pressure gauge BRINE pressure gauge WATER PH1E plate type heat exchanger BRINE REFRIGERANT PH2E plate type heat exchanger REFRIGERANT-WATER air purge check valve...

  • Page 161: Wiring Diagram 2 (Pcb A1P / A2P / A4P / A8P)

    Ground source heat pump ESIE13-03 Part 5. Appendix 2. Wiring diagrams Wiring diagram 2 Figure 77 - Wiring diagram 2 (PCB A1P / A2P / A4P / A8P) 13/05/15 Version 2.0 Page 161...

  • Page 162: Wiring Diagram 3 (Pcb A1P)

    Ground source heat pump ESIE13-03 Part 5. Appendix 2. Wiring diagrams Wiring diagram 3 Figure 78 - Wiring diagram 3 (PCB A1P) WATER PUMP Page 162 13/05/15 Version 2.0...

  • Page 163: Wiring Diagram 4 (Pcb A9P / A10P)

    Ground source heat pump ESIE13-03 Part 5. Appendix 2. Wiring diagrams Wiring diagram 4 Figure 79 - Wiring diagram 4 (PCB A9P / A10P) Supply BRINE PUMP Brine flow switch 13/05/15 Version 2.0 Page 163...

  • Page 164: Piping Diagram

    Ground source heat pump ESIE13-03 Part 5. Appendix 3. Piping diagram 3. Piping diagram Figure 80 - Piping diagram Brine side Refrigerant Water side INSIDE OF UNIT - FACTORY INSTALLED PRESSURE PRESSURE SAFETY GAUGE SAFETY VALVE VALVE To DHW circuit B1PH S1PH BLOW FIELD SUPPLIED...

  • Page 165: Piping Overview

    Ground source heat pump ESIE13-03 Part 5. Appendix 4. Piping overview 4. Piping overview Figure 81 - Piping overview BRINE BRINE LEAVING ENTERING DOMESTIC DOMESTIC COLD WATER HOT WATER WATER WATER LEAVING ENTERING (space heating) (space heating) Legend Expansion vessel water side Drain valve brine (DR1) 17 Flow switch 25 Muffler...

  • Page 166: Thermistors

    Ground source heat pump ESIE13-03 Part 5. Appendix 5. Thermistors 5. Thermistors Figure 82 - Thermistors BRINE BRINE LEAVING ENTERING DOMESTIC DOMESTIC HOT WATER COLD WATER WATER WATER ENTERING LEAVING (space heating) (space heating) Legend R1T IN Outlet water temperature sensor R4T IN Inlet water temperature sensor R2T IN BUH Temperature sensor R4T OUT Two phase sensor...
  • Page 167 In case a problem occurred on the unit which could not be resolved by using the content of this service manual or in case you have a problem which could be resolved but of which the manufacturer should be notified, we advise you to contact your distributor. To facilitate the investigation, additional information is required.
  • Page 168 Application info Application (house, apartment, office, …): New project or refurbishment: Heat emitters (radiators / under floor heating / fan coils / …): Hydraulic layout (simple schematic): Unit / Installation info Model name: Serial number: Installation / commissioning date: Software version hydro PCB: Software version user interface: Software version outdoor PCB: Minimum water volume:...

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