Daikin Split Comfora R32 Service Manual
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Daikin Split Comfora R32 Service Manual

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FTXP20~71L
FTXP20~35M(9)
FTXP50~71M
ATXP20~35L
ATXP20~35M
RXP20~71L
RXP20~71M
ARXP20~35L
ARXP20~35M
Service manual
Split Comfora R32

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Summary of Contents for Daikin Split Comfora R32

  • Page 1 Service manual Split Comfora R32 FTXP20~71L FTXP20~35M(9) FTXP50~71M ATXP20~35L ATXP20~35M RXP20~71L RXP20~71M ARXP20~35L ARXP20~35M...
  • Page 2 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 The following updates have been applied to the Service Manual: • Indoor unit models FTXP20~35M9 added. • Technical data – Wiring diagram: Wiring diagrams for new models added. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 4: Table Of Contents

    High pressure switch............................... 62 2.4.1 Checking procedures ............................62 2.4.2 Repair procedures ............................64 Indoor unit fan motor ..............................65 2.5.1 Checking procedures ............................65 Service manual ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 5 Field information report ..............................156 Service tools ..................................159 Field settings ................................... 160 5.7.1 Field settings: Indoor unit ..........................160 5.7.2 Field settings: Outdoor unit ........................... 162 ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 6: Troubleshooting

    Even if the unit is turned OFF, it consumes electricity. ▪ When the power turns back on after a power break, the previously selected mode will be resumed. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 7: To Perform A Test Run In Winter Season

    ▪ Short circuit. 4 Perform a check of the indoor unit main PCB. See "2.6  Indoor unit main PCB" [  68]. Possible cause: Faulty indoor unit main PCB. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 8: A5-00 - Freeze-Up Protection / Heating Peak Cut Control

    Possible cause: Faulty indoor unit main PCB. INFORMATION If all procedures listed above have been performed and the problem is still present, contact the helpdesk. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 9: A6-00 - Indoor Unit Fan Motor Abnormality

    Possible cause: Faulty indoor unit main PCB. INFORMATION If all procedures listed above have been performed and the problem is still present, contact the helpdesk. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 10: C9-00 - Room Thermistor Abnormality

    Possible cause: Faulty outdoor unit fan motor. 4 Perform a check of the compressor. See "2.2 Compressor" [  44]. Possible cause: Faulty compressor or miswiring of the compressor power supply cable. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 11: E3-00 - Outdoor Unit: Actuation Of High Pressure Switch

    "3.2  Refrigerant circuit" [  123]. Possible cause: Refrigerant overcharge. 5 Check for the presence of non‑condensables and/or humidity in the refrigerant circuit. See "3.2 Refrigerant circuit" [  123]. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 12: E5-00 - Outdoor Unit: Overheat Of Inverter Compressor Motor

    8 Perform a check of the inverter PCB. See "2.7 Inverter PCB" [  73]. Possible cause: Faulty inverter PCB. 9 Check if the refrigerant circuit is correctly charged. See "3.2  Refrigerant circuit" [  123]. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 13: E6-00 - Outdoor Unit: Compressor Startup Defect

    "2.8 Main PCB" [  75]. Possible cause: Faulty main PCB. 8 Perform a check of the inverter PCB. See "2.7 Inverter PCB" [  73]. Possible cause: Faulty inverter PCB. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 14: E7-00 - Outdoor Unit: Malfunction Of Outdoor Unit Fan Motor

    To solve the error code INFORMATION It is recommended to perform the checks in the listed order. 1 Check the outdoor temperature. See "3.3 External factors" [  130]. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 15: Cooling/Heating Switch Abnormality

    Possible cause: Closed stop valve in the refrigerant circuit. 6 Check if the refrigerant circuit is clogged. See "3.2 Refrigerant circuit" [  123]. Possible cause: Clogged refrigerant circuit. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 16: F3-00 - Outdoor Unit: Malfunction Of Discharge Pipe Temperature

    7 Perform a check of the main PCB. See "2.8 Main PCB" [  75]. Possible cause: Faulty main PCB. 8 Perform check refrigerant side thermistors. "2.14 Thermistors" [  110]. Possible cause: Faulty refrigerant side thermistor(s). ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 17: F6-00 - Outdoor Unit: Abnormal High Pressure In Cooling

    Possible cause: Faulty outdoor unit fan motor. INFORMATION If all procedures listed above have been performed and the problem is still present, contact the helpdesk. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 18: F8-00 - System Shutdown Due To Compressor Internal Temperature Abnormality

    3 Check if the power supply is conform with the regulations. See "3.1 Electrical circuit" [  121]. Possible cause: ▪ Faulty or disturbance of the power supply (imbalance >10%), ▪ Power drop, ▪ Short circuit. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 19: H3-00 - Outdoor Unit: Malfunction Of High Pressure Switch

    ▪ Faulty or disturbance of the power supply (imbalance >10%), ▪ Power drop, ▪ Short circuit. INFORMATION If all procedures listed above have been performed and the problem is still present, contact the helpdesk. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 20: H6-00 - Outdoor Unit: Malfunction Of Position Detection Sensor

    ▪ Faulty or disturbance of the power supply (imbalance >10%), ▪ Power drop, ▪ Short circuit. INFORMATION If all procedures listed above have been performed and the problem is still present, contact the helpdesk. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 21: H8-00 - Outdoor Unit: Malfunction Of Compressor Input System

    PCB" [  75]. Possible cause: Faulty main PCB. INFORMATION If all procedures listed above have been performed and the problem is still present, contact the helpdesk. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 22: J3-00 - Outdoor Unit: Malfunction Of Discharge Pipe Thermistor

    1.5.23 L3-00 – Outdoor unit: Electrical box temperature rise problem Trigger Effect Reset Switch box temperature is Unit will stop operating. Manual reset via remote too high. controller. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 23: L4-00 - Outdoor Unit: Malfunction Of Inverter Radiating Fin Temperature Rise

    "2.7 Inverter PCB" [  73]. Possible cause: Faulty inverter PCB. 4 Perform a check of the main PCB. See "2.8 Main PCB" [  75]. Possible cause: Faulty main PCB. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 24: L5-00 - Outdoor Unit: Inverter Instantaneous Overcurrent

    Possible cause: Faulty compressor or miswiring of the compressor power supply cable. 7 Check if the power supply is conform with the regulations. See "3.1 Electrical circuit" [  121]. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 25: P4-00 - Outdoor Unit: Malfunction Of Radiating Fin Temperature Sensor

    1.5.27 U0-00 – Outdoor unit: Shortage of refrigerant Trigger Effect Reset Refrigerant shortage Unit will stop operating. Automatic reset. detected. Power reset via outdoor unit. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 26: U2-00 - Outdoor Unit: Defect Of Power Supply Voltage

    It is recommended to perform the checks in the listed order. 1 Check if the power supply is conform with the regulations. See "3.1 Electrical circuit" [  121]. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 27: U4-00 - Indoor/Outdoor Unit Communication Problem

    Possible cause: Faulty wiring between the outdoor unit and the indoor unit. 3 Perform a check of the main PCB. See "2.8 Main PCB" [  75]. Possible cause: Faulty main PCB. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 28: Indoor Unit, Outdoor Unit Mismatching Problem

    Possible cause: Faulty main PCB. 4 Perform a check of the indoor unit main PCB. See "2.6  Indoor unit main PCB" [  68]. Possible cause: Faulty indoor unit main PCB. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 29 Troubleshooting INFORMATION If all procedures listed above have been performed and the problem is still present, contact the helpdesk. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 30: Symptom Based Troubleshooting

    When the operation lamp is off, there is ▪ A power failure of 2 to 10 cycles stops a power failure. air conditioner operation. Check the power supply. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 31: Operation Starts But The Unit Does Not Cool/Heat

    Check the type of the indoor and Is the indoor unit type compatible with outdoor units. the outdoor unit? Check the air filter. Is the air filter clean? ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 32: Operating Noise And Vibrations

    Check the expansion valve. If a passing sound is heard from the pressure reducing valve, apply sound insulation sheets of putty to reduce the valve noise. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 33: Abnormal High Pressure

    Is the minimum piping length Visual inspection respected? Does air enter the refrigerant system? Conduct refrigerant collection and vacuum drying, and then add proper amount refrigerant. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 34: Abnormal Low Pressure

    Is the check valve (if applicable) Check if there is a temperature clogged? difference before and after check valve. If YES, the check valve is clogged. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 35: Indoor Fan Starts Operating But The Compressor Does Not Operate

    Heating operation cannot be used when the outdoor temperature is 18°C WB or higher. ▪ Cooling operation cannot be used when the outdoor temperature is below –10°C DB. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 36: Operation Starts And The Unit Stops Immediately

    Incorrect charge. ▪ Air in the system. ▪ Water in the system. ▪ Obstruction in the system. Check compressor. ▪ Overcurrent relay. ▪ Protection thermostat. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 37: Unit Discharges White Mist

    This is not a unit error, but a control function to prevent draft to the customer. Check indoor unit PCB Connector connection ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 38: Components

    Result: The measured value must be 46 Ω ± 10%. Is the measured value correct? Action Continue with the next step. Replace the 4‑way valve coil, see "2.1.2 Repair procedures" [  41]. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 39 Is the measured voltage correct? Action Perform a position check of the 4-way valve, see "2.1.1 Checking procedures" [  38]. Perform a check the main PCB, see "2.8 Main PCB" [  75]. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 40 4‑way valve is OK. Return to the troubleshooting of the specific error and continue with the next procedure. Replace the body of the 4‑way valve, "2.1.2 Repair procedures" [  41]. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 41: Repair Procedures

    Prerequisite: If needed, remove any parts to create more space for the removal of the 4‑way valve coil. 1 Remove the screw and remove the 4‑way valve coil from the 4‑way valve body. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 42 5 Supply nitrogen to the refrigerant circuit. The nitrogen pressure MUST NOT exceed 0.02 MPa. 6 Heat the ends of the 4‑way valve pipes using an oxygen acetylene torch and remove the expansion valve pipe ends. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 43 7 Add refrigerant refrigerant circuit, "3.2.2  Repair procedures" [  127]. To install the 4-way valve coil 1 Install the 4‑way valve coil on the 4‑way valve body. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 44: Compressor

    4 Wait for - or create condition to operate the compressor. 5 Listen to the compressor when it tries to operate. Judge if a mechanical lock is present. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 45 4 Check that the compressor wire terminals cover is correctly installed and fixed. Correct as needed. 5 Check the compressor dampers for any damage. Damper ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 46 3 Disconnect the Faston connectors from the compressor wire terminals U, V and W. INFORMATION Note the position of the Faston connectors on the compressor wire terminals to allow correct connection during installation. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 47 PCB. If no continuity, correct as needed, see "5.2 Wiring diagram" [  137]. 6 Connect the Faston connectors to the compressor wire terminals U, V and W ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 48 Wait for at least 10 minutes after the circuit breaker has been turned OFF, to be sure the rectifier voltage is below 10 V DC before proceeding. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 49 ▪ V–ground, ▪ W–ground. Compressor insulation measurements Action are correct? Compressor is OK. Return to troubleshooting of the specific error and continue with the next procedure. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 50: Repair Procedures

    3 Disconnect the Faston connectors from the compressor wire terminals U, V and W. INFORMATION Note the position of the Faston connectors on the compressor wire terminals to allow correct connection during installation. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 51 7 Stop the nitrogen supply when the piping has cooled down. 8 Remove the all the nuts and remove the compressor from the unit. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 52 3 Remove the caps from the compression pipe and suction pipe. CAUTION The oil in the compressor is hygroscopic. Therefore remove the caps from the compressor pipes as late as possible. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 53 7 Connect the Faston connectors to the compressor wire terminals U, V and W Faston connector 8 Install the cover of the compressor wire terminals. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 54: Expansion Valve

    ▪ Coil wires for signs of damage. Replace expansion valve coil as needed. See "2.3.2 Repair procedures" [  57]. 2 Remove the expansion valve coil from the expansion valve body, see "2.3.2 Repair procedures" [  57]. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 55 3 Check the insulation resistance of the coil by measuring the resistance between the pins of each phase (1, 2, 3, 4) and GND on the unit. Result: None of the measurements should be short‑circuit. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 56 The best way to check is to feel the movement of the valve by touching, rather than trying to measure the driving voltage. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 57: Repair Procedures

    It may be needed to turn the expansion valve coil 1/8 turn counter clockwise to unlock it. Make sure to note the correct orientation (position) of the expansion valve coil before removal. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 58 Prerequisite: If needed, remove any parts or insulation to create more space for the removal. 1 Remove the expansion valve motor, see "2.3.2 Repair procedures" [  57]. 2 Remove the putty. Keep for re-use. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 59 2 Supply nitrogen to the refrigerant circuit. The nitrogen pressure MUST NOT exceed 0.02 MPa. 3 Wrap a wet rag around the expansion valve body and solder the refrigerant pipes to the expansion valve body. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 60 About the installation of the expansion valve motor NOTICE Select the correct type. To install the expansion valve motor with clip 1 Install the expansion valve motor on the expansion valve body. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 61 The expansion valve motor is equipped with a metal bracket. Fit the nipples of the metal bracket into the notches of the expansion valve body. CAUTION Make sure to install the expansion valve motor in the correct position (orientation). ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 62: High Pressure Switch

    1 Recuperate the refrigerant from the refrigerant circuit, see "3.2.2  Repair procedures" [  127]. 2 Fill the refrigerant circuit with nitrogen until pressurized just below operating pressure of the high pressure switch. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 63 High pressure switch is OK. Return to the troubleshooting of the specific error and continue with the next procedure. Replace the high pressure switch, see "2.4.2 Repair procedures" [  64]. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 64: Repair Procedures

    2 Supply nitrogen to the refrigerant circuit. The nitrogen pressure MUST NOT exceed 0.02 MPa. 3 Wrap a wet rag around the high pressure switch and solder the high pressure switch pipe to the high pressure switch. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 65: Indoor Unit Fan Motor

    1 Check the friction of the DC fan motor shaft bearing. Is the DC fan motor shaft friction Action normal? Perform an electrical check of the DC fan motor assembly, see "2.5.1 Checking procedures" [  65]. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 66: Repair Procedures

    (if equipped) from the indoor unit PCB. 4 Remove the screw and remove the switch box from the indoor unit. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 67 2 Install the rubber in front of the fan motor. 3 Click the indoor unit fan motor cover on the indoor unit. Indoor unit fan motor cover 4 Put the switch box in place. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 68: Indoor Unit Main Pcb

    1 Turn ON the power of the unit. 2 Measure the voltage between the black and white wires on the PCB. The measured voltage MUST be 16 V DC. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 69 Is the correct spare part for the indoor Action unit PCB installed? Return to "2.6.1 Checking procedures" [  68] of the indoor unit PCB and continue with the next procedure. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 70 1 Measure the continuity of the fuse. If no continuity is measured, the fuse has blown. Fuse Blown fuse on the indoor unit PCB? Action Replace the blown fuse, see "2.6.2 Repair procedures" [  71]. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 71: Repair Procedures

    Prerequisite: Remove the required plate work, see "2.10 Plate work" [  92]. 1 Disconnect all connectors from the indoor unit PCB. 2 Carefully pull the indoor unit PCB from the PCB supports. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 72 Prerequisite: Stop the unit operation via the user interface. Prerequisite: Turn OFF the respective circuit breaker. Prerequisite: Remove the required plate work, see "2.10 Plate work" [  92]. 1 Remove the fuse from the PCB. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 73: Inverter Pcb

    2.7.1 Checking procedures As the inverter PCB is integrated in the main PCB of the unit, see "2.8  Main PCB" [  75] for the other check procedures. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 74 Wait for 3 minutes for the power transistor check operation to start. 6 All LED’s on the Inverter Analyzer must lit. 7 Turn off the respective circuit breaker. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 75: Repair Procedures

    1 Turn ON the power of the unit. 2 Measure the voltage between the black and white wires. Result: The measured voltage MUST be 230 V AC. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 76 To check the HAP LED of the main PCB Prerequisite: First check the power supply to the main PCB, see "2.8.1  Checking procedures" [  75]. 1 Locate the HAP LED on the main PCB. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 77 Correct the wiring as needed. Is the problem solved? Action No further actions required. Return to "2.8.1 Checking procedures" [  75] of the PCB and continue with the next procedure. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 78: Repair Procedures

     137]. 3 Check the continuity of all wires. 4 Replace any damaged or broken wires. Is the problem solved? Action No further actions required. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 79 ALWAYS apply new grease on the PCB heat sink. NOT doing so may cause the PCB to fail due to insufficient cooling. 2 Install the main PCB in the correct location on the PCB supports. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 80 Prerequisite: Remove the required plate work, see "2.10 Plate work" [  92]. 1 Remove the fuse from the PCB. Fuse 2 To install a fuse on the main PCB, see "2.8.2 Repair procedures" [  78]. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 81: Outdoor Unit Fan Motor

     92]. 1 If propeller fan blade touches the bellmounth, check if the fan motor is correctly mounted on its base, see "Repair procedures" [  84]. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 82 Does not rotate or rotates for a short Continue with the next step. time 5 Turn OFF the unit via the user interface. 6 Turn OFF the respective circuit breaker. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 83 Result: 4 pulses MUST be measured. 11 Repeat the previous step and measure the voltage on the DC fan motor connector pins 10-13. Result: 4 pulses MUST be measured. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 84 3 Pull and remove the propeller fan blade assembly from the DC fan motor assembly. INFORMATION Use a pulley remover if the propeller cannot be removed manually. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 85 1 Install the propeller fan blade assembly on the DC fan motor assembly. CAUTION Do NOT install a damaged propeller fan blade assembly. 2 Install and tighten the nut to fix the propeller fan blade assembly. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 86: Class 50~71 Units

    3 Check the friction of the DC fan motor shaft bearing. Is the DC fan motor shaft friction Action normal? Perform an functionality check of the DC fan motor assembly, see "Checking procedures" [  86]. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 87 5 Disconnect the DC fan motor connector S71 and measure the resistance on the connector pins shown below. The measured resistance MUST be: Comm Resistance Comm Resistance 108 kΩ 108 kΩ 1.2 kΩ 1.2 kΩ ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 88 5 Disconnect the DC fan motor connector S71 and measure the resistance on the connector pins shown below. The measured resistance MUST be: Comm Resistance Comm Resistance 108 kΩ 108 kΩ ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 89 Perform a check of the main PCB, see "2.8.1 Checking procedures" [  75]. Replace the DC fan motor, see "Repair procedures" [  90]. Problem solved? After all checking procedures listed above have been performed: ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 90 6 Slightly bend the harness retainers to detach the DC fan motor harness. 7 Remove the 4 screws that fix the DC fan motor assembly. 8 Remove the DC fan motor assembly from the unit. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 91 Is the problem solved? Action No further actions required. Return to "Checking procedures" [  86] of the outdoor unit fan motor and continue with the next procedure. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 92: Plate Work

    Prerequisite: Stop the unit operation via the user interface. Prerequisite: Turn OFF the respective circuit breaker. 1 Loosen and remove the screws that fix the top plate. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 93 This procedure is just an example and may differ on some details for your actual unit. Prerequisite: Remove the front plate, see "2.10 Plate work" [  92]. 1 Untwist the cord and remove the compressor sound insulation. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 94 1 Remove the insulation on the upper side of the switch box. Insulation Main PCB 2 Disconnect all connectors from the main PCB. 3 Disconnect the electrical power supply wiring from the wire terminals. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 95 4 Remove the screws that fix the wire clamp. 5 Remove the wire clamp. 6 Remove the screws that fix the right side plate assembly. 7 Cut the cable tie. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 96 1 Install the switch box on the correct location in the outdoor unit. 2 Install the right side plate assembly on the outdoor unit and fix it using the screws. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 97 NOT apply force, as this may damage the connector or connector pins of the PCB. 6 Fix the wiring to the switch box using a new cable tie. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 98: Indoor Unit

    Main PCB 2.10.2 Indoor unit To open the front panel 1 Hold the front panel by the panel tabs on both sides and open it. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 99 Result: The front panel shaft on 1 side will be disconnected. 3 Disconnect the front panel shaft on the other side in the same manner. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 100 4 We recommend opening the flap before removing the front grille. 5 Place both hands under the centre of the front grille, push it up and then toward you. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 101: Reactor

    Prerequisite: Stop the unit operation via the user interface. Prerequisite: Turn OFF the respective circuit breaker. 1 Remove the required plate work, see "2.10 Plate work" [  92]. 2 Open the compressor insulation. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 102: Repair Procedures

    Prerequisite: Stop the unit operation via the user interface. Prerequisite: Turn OFF the respective circuit breaker. 1 Remove the required plate work, see "2.10 Plate work" [  92]. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 103 3 Install the cover of the compressor wire terminals. Compressor wire terminals cover 4 Install the compressor insulation. Is the problem solved? Action No further actions required. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 104: Swing Flap Motor

    Prerequisite: Stop the unit operation via the user interface. Prerequisite: Turn OFF the respective circuit breaker. Prerequisite: Remove the required plate work, see "2.10 Plate work" [  92]. 1 Remove the cover. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 105 4 Install the cover. Is the problem solved? Action No further actions required. Return to the troubleshooting of the specific error and continue with the next procedure. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 106: Swing Raster Motor

    1 Pull the clip and remove the heat exchanger thermistor from its holder. 2 Remove the screws to disconnect the grounding wires from the heat exchanger. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 107 6 Remove the 2 screws that fix the swing raster motor assembly to the indoor unit. 7 Disconnect the swing raster shaft from the swing raster motor rod. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 108 Swing raster shaft Swing raster motor rod Swing raster motor assembly 4 Connect the swing raster motor rod to the swing raster shaft using soft tools. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 109 12 Connect the grounding wires to the heat exchanger using the screws. Is the problem solved? Action No further actions required. Return to the troubleshooting of the specific error and continue with the next procedure. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 110: Thermistors

    3 Measure the temperature using a contact thermometer. Name Symbol Location (PCB) Connector Type (pins) Air thermistor Main (O/U) S90:1‑2 Heat Main (O/U) S90:3‑4 exchanger thermistor Discharge pipe Main (O/U) S90:5‑6 thermistor ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 111 3.68 41.95 11.06 3.56 5 Disconnect the thermistor connector from the appropriate PCB. 6 Measure the resistance between the appropriate pins of the thermistor connector. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 112 "2.10 Plate work" [  92]. 1 Locate the thermistor that needs to be removed. 2 Cut the tie straps that fix the insulation and the thermistor wire. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 113  137]. ALWAYS replace the complete set of thermistors wired to the same connector. 8 When removing the complete set of thermistors wired to the same connector: ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 114 "5.2 Wiring diagram" [  137]. ALWAYS replace the complete set of thermistors wired to the same connector. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 115: Other Thermistors

    To perform an electrical check of the room thermistor Prerequisite: First perform a mechanical check of the thermistor, see "Checking procedures" [  115]. 1 Locate the thermistor. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 116 –14 139.94 30.06 8.37 2.82 –13 132.28 28.70 8.05 2.72 –12 125.09 27.41 7.75 2.64 –11 118.34 26.18 7.46 2.55 –10 111.99 25.01 7.18 2.47 ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 117 If the measured resistance value matches the resistance determined through the measured temperature, but the temperature for the corresponding thermistor is NOT correct on the user interface display, replace the applicable PCB. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 118 –14 139.94 30.06 8.37 2.82 –13 132.28 28.70 8.05 2.72 –12 125.09 27.41 7.75 2.64 –11 118.34 26.18 7.46 2.55 –10 111.99 25.01 7.18 2.47 ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 119 Thermistor is OK. Return to the troubleshooting of the specific error and continue with the next procedure. Replace the specific PCB, see "2 Components" [  38]. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 120 2 Connect the connector of the room thermistor PCB to the indoor unit PCB. Is the problem solved? Action No further actions required. Return to the troubleshooting of the specific error and continue with the next procedure. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 121: Third Party Components

    Continue with the next step. 5 Check the power supply to the unit, see "3.1.1 Checking procedures" [  121]. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 122: Repair Procedures

    1 Make sure that all wires are firmly and correctly connected, see "5.2  Wiring diagram" [  137]. 2 Check the continuity of all wires. 3 Replace any damaged or broken wires. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 123: Refrigerant Circuit

    Return to the troubleshooting of the specific error and continue with the next procedure. Open the stop valves of the refrigerant circuit, see "3.2.2 Repair procedures" [  127]. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 124 2 The superheated degree of suction gas lowers (or the wet operation is performed). Consequently, the compressor consumes more power and is noisy (before over‑current relay trips). ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 125 3 Low pressure drops to cause the unit not to reach cooling capacity (or heating capacity). ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 126 Prerequisite: Turn OFF the respective circuit breaker. 1 Wait for the refrigerant to reach the outdoor temperature. 2 Connect a manometer to the service port. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 127: Repair Procedures

     92]. 1 Remove the caps. Liquid stop valve Gas stop valve 2 Completely open the stop valves by screwing the stop valve screw counterclockwise. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 128 To recovery pump Low pressure High pressure Vacuum Refrigerant 3 To add refrigerant, see "3.2.2 Repair procedures" [  127]. Is the problem solved? Action No further actions required. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 129 ▪ Use a separate recovery system so that the unit's compressor does NOT have to operate. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 130: External Factors

    Business Portal. INFORMATION If the outdoor temperature is outside the range of operation, the unit may NOT operate or may NOT deliver the required capacity. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 131 Remove the object(s) as needed. Is the problem solved? Action No further actions required. Return to the troubleshooting of the specific error and continue with the next procedure. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 132: Maintenance

    4.3 To clean the air filters ATXP-L + FTXP-L 1 Push the tab at the centre of each air filter, then pull it down. 2 Pull out the air filters. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 133 It is recommended to clean the air filters every 2 weeks. ATXP-M + FTXP-M 6 Push the tab at the centre of each air filter, then pull it down. 7 Pull out the air filters. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 134 Be sure to remove the titanium apatite deodorising and silver particle filters. ▪ It is recommended to clean the air filters every 2 weeks. Is the problem solved? Action No further actions required. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 135 Maintenance Is the problem solved? Action Return to the troubleshooting of the specific error and continue with the next procedure. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 136: Technical Data

    See the installer reference guide on business portal for more information. 5.1.3 Detailed information setting mode: Remote controller See the installer reference guide on business portal for more information. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 137: Wiring Diagram

    RED : Red WHT : White YLW : Yellow Caution When the main power is turned off and then back on again, operation will resume automatically. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 138 Signal receiver Signal receiver Wireless remote control Wireless remote control Horizontal Horizontal Vertical Vertical (2) Notes English Translation Connection Main terminal Field supply Protective earth Rectifier ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 139 LED 1, LED 2 Light‑emitting diode Fan motor Swing flap motor Magnetic relay Room thermistor Suction pipe thermistor S6-S602 Connector Operation switch Varistor Terminal strip Ferrite core ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 140 (3) Legend FG, HE, S6~S900 Connector F1U (FU1) Fuse T1R (L301) Transformer Fan motor Swing flap motor K1R (MR10) Magnetic relay Printed circuit board ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 141 Varistor Terminal strip Ferrite core IPM* Intelligent power module H*P (LED*) Pilot lamp V1R (DB301) Diode bridge H1O (BZ) Buzzer Capacitor SR (WLU) Signal receiver ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 142: Wiring Diagram: Outdoor Unit

    Intelligent power module K30R, K10R, MR4 Magnetic relay Reactor Compressor motor Fan motor Printed circuit board Switching power supply Overload protector Thermistor (air) Thermistor (heat exchanger) ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 143 BLK : Black BLU : Blue BRN : Brown GRN : Green GRY : Grey ORG : Orange RED : Red WHT : White YLW : Yellow ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 144 S2 -S90 Terminal connector Surge arrestor V1 , V2, V3 Varistor X11A Connector Terminal strip Electronic expansion valve Reversing solenoid valve coil Ferrite core Noise filter ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 145: Piping Diagram

    The diagrams shown in this manual may be incorrect due to changes/updates to the unit. Correct diagrams are supplied with the unit and can also be found in the technical data book. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 146 The diagrams shown in this manual may be incorrect due to changes/updates to the unit. Correct diagrams are supplied with the unit and can also be found in the technical data book. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 147 The diagrams shown in this manual may be incorrect due to changes/updates to the unit. Correct diagrams are supplied with the unit and can also be found in the technical data book. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 148: Piping Diagram: Outdoor Unit

    The diagrams shown in this manual may be incorrect due to changes/updates to the unit. Correct diagrams are supplied with the unit and can also be found in the technical data book. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 149 The diagrams shown in this manual may be incorrect due to changes/updates to the unit. Correct diagrams are supplied with the unit and can also be found in the technical data book. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 150 The diagrams shown in this manual may be incorrect due to changes/updates to the unit. Correct diagrams are supplied with the unit and can also be found in the technical data book. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 151 The diagrams shown in this manual may be incorrect due to changes/updates to the unit. Correct diagrams are supplied with the unit and can also be found in the technical data book. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 152 The diagrams shown in this manual may be incorrect due to changes/updates to the unit. Correct diagrams are supplied with the unit and can also be found in the technical data book. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 153: Component Overview

    ATXP-L + FTXP-L Heat exchanger Heat exchanger thermistor R2T Fan motor Swing flap Swing flap motor Room thermistor R1T PCB Switch box Indoor unit PCB ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 154 Heat exchanger thermistor R2T Fan motor Swing flap Swing flap motor Room thermistor R1T PCB Switch box Indoor unit PCB Swing raster motor Swing raster ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 155: Component Overview: Outdoor Unit

    Heat exchanger thermistor R2T Muffler Liquid receiver Accumulator Stop valve with service port (gas) Compressor Stop valve (liquid) Fan motor 4‑way valve coil Main + inverter PCB ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 156: Field Information Report

    Technical data 5.5 Field information report See next page. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 157 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.
  • Page 158 Application information Application (house, apartment, office,…): New project or reimbursement: Heat emitters (radiators / under floor heating / fan coils /…): Hydraulic layout (simple schematic): Unit / Installation information Model name: Serial number: Installation / commissioning date: Software version hydro PCB A1P Software version hydro PCB A5P Software version user interface: Software version outdoor PCB:...

  • Page 159: Service Tools

    3 Click the button Service tools. An overview of the available service tools for the different products is shown. Also additional information on the service tools (instruction, latest software) can be found here. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 160: Field Settings

    ▪ 0 = –2,0°C ▪ 1 = –1,0°C ▪ 2 = 0°C (factory setting) ▪ 3 = +1,0°C ▪ 4 = +2,0°C 10 Press to confirm. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 161 5 Press 6 Select 10. 7 Press to confirm. 8 Press 9 Select 0 (0: fan ON, 1: fan OFF). 10 Press to confirm. ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...

  • Page 162: Field Settings: Outdoor Unit

    ▪ J9: No function for this unit ▪ J11: Protection for error memory overwrite (only to be used during development) ▪ J12: No function for this unit ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71 Service manual Split Comfora R32 ESIE18-01C – 2020.07...
  • Page 164 ESIE18-01C 2020.07 Verantwortung für Energie und Umwelt...

Table of Contents