Related Manuals for Daikin 2MXM50M
Summary of Contents for Daikin 2MXM50M
- Page 1 ESIE16-02B Service Manual RA R32 Split & multi split M-Series Indoor unit Outdoor unit FTXJ-M FTXM-M FTXP-KV FDXM-F RXJ-M RXM-M MXM-M MXM-N...
- Page 2 ESIE16-02B 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
RA R32 Split & multi split M-Series ESIE16-02B Part 1. Introduction ........................9 1.1. Version log ..............................9 1.2. Safety precautions ...........................10 1.2.1. Meaning of symbols ............................. 10 1.2.2. Warnings ..............................10 1.2.3. Cautions ............................... 12 1.2.4. Information ..............................12 1.3. General operation ............................13 1.4. - Page 4 RA R32 Split & multi split M-Series ESIE16-02B 2.2.2.18. “J9-00” – Gas pipe thermistor abnormality .....................33 2.2.2.19. “L1-00” – Outdoor main PCB abnormality ....................34 2.2.2.20. “L3-00” – Switch box temperature abnormality ..................34 2.2.2.21. “L4-00” – Inverter radiating fin temperature abnormality ................35 2.2.2.22.
- Page 5 5.2.2. Outdoor unit ..............................97 5.2.3. Remote controller ............................97 5.3. Wiring diagram ............................98 5.3.1. Indoor unit ..............................98 5.3.2. Outdoor unit ..............................99 5.3.2.1. 2MXM50M ..............................99 5.3.2.2. 3MXM68M ..............................99 5.3.2.3. 4MXM-M ..............................100 5.3.2.4. 5MXM-M ..............................100 5.3.2.5. RXJ20-35M ............................101 5.3.2.6.
- Page 6 RA R32 Split & multi split M-Series ESIE16-02B 5.7. Switch box ............................. 111 5.7.1. Indoor unit ..............................111 5.7.2. Outdoor unit ............................... 111 5.8. Field information report ......................... 112 Page 6 4/04/17 Version 1.1...
- Page 7 Figure 5-4: Dip switch location ..........................95 Figure 5-5: S15 connector location ...........................96 Figure 5-6: Jumper location ............................96 Figure 5-7: Wiring diagram - outdoor unit 2MXM50M ....................99 Figure 5-8: Wiring diagram - outdoor unit 3MXM68M ....................99 Figure 5-9: Wiring diagram - outdoor unit 4MXM-M ....................100 Figure 5-10: Wiring diagram - outdoor unit 2MXM50M ...................100...
- Page 8 RA R32 Split & multi split M-Series ESIE16-02B Figure 5-26: Piping diagram - outdoor unit RXM71M ..................... 109 Figure 5-27: Component overview - outdoor unit ....................110 Page 8 4/04/17 Version 1.0...
-
Page 9: Part 1. Introduction
RA R32 Split & multi split M-Series ESIE16-02B Part 1. Introduction 1.1. Version log Part 1. Introduction This part contains the following chapters: Version log......................................9 Safety precautions....................................10 General operation....................................13 How to use ......................................14 1.1. Version log Version code Description Date ESIE16-02A Document release 21/03/2017... -
Page 10: Safety Precautions
RA R32 Split & multi split M-Series ESIE16-02B Part 1. Introduction 1.2. Safety precautions 1.2. Safety precautions The precautions described in this document cover very important topics, follow them carefully. All activities described in the service manual must be performed by an authorized person. If you are not sure how to install, operate or service the unit, contact your dealer. - Page 11 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 12: Cautions
RA R32 Split & multi split M-Series ESIE16-02B Part 1. Introduction 1.2. Safety precautions ARNING • Only use copper wires. • All field wiring must be performed in accordance with the wiring diagram and installation manual supplied with the product. •... -
Page 13: General Operation
RA R32 Split & multi split M-Series ESIE16-02B Part 1. Introduction 1.3. General operation 1.3. General operation • These split units are used for comfort cooling and are equipped with an inverter. • The rotation speed rps (= rotation per second) of the inverter driven compressor, modulated by the inverter, can be varied according the required capacity in the room. -
Page 14: How To Use
1.4.1. 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 15: Parts Of The Book
1.4.2. 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 16 RA R32 Split & multi split M-Series ESIE16-02B Part 1. Introduction 1.4. How to use Page 16 4/04/17 Version 1.0...
-
Page 17: Part 2. Troubleshooting
RA R32 Split & multi split M-Series ESIE16-02B Part 2. Troubleshooting 2.1. Error codes check Part 2. Troubleshooting This part contains the following chapters: Error codes check ....................................17 Error based troubleshooting .................................20 Symptom based troubleshooting................................42 Component checklist ....................................43 Other capacity range ....................................59 2.1. -
Page 18: Error Codes Via Outdoor Unit Pcb
RA R32 Split & multi split M-Series ESIE16-02B Part 2. Troubleshooting 2.1. Error codes check 2.1.2. Error codes via outdoor unit PCB 2.1.2.1. How to retrieve error codes Troubleshooting via the service display. GREEN GREEN FLASHING: NORMAL FLASHING — OFF: NORMAL ANY STATUS MICRO- MALFUNCTION DETECTION... -
Page 19: History Of Error Codes
RA R32 Split & multi split M-Series ESIE16-02B Part 2. Troubleshooting 2.1. Error codes check 2.1.2.3. History of error codes Not applicable 2.1.2.4. Content of retry Not applicable 4/04/17 Version 1.1 Page 19... -
Page 20: Error Based Troubleshooting
RA R32 Split & multi split M-Series ESIE16-02B Part 2. Troubleshooting 2.2. Error based troubleshooting 2.2. Error based troubleshooting Overview of error codes: Indoor unit......................................21 “A1-00” – PCB abnormality..............................21 “A1-01” – PCB abnormality..............................21 “A5-00” – Freeze-up protection / Heating peak cut control...................... 22 “A6-00”... -
Page 21: Indoor Unit
RA R32 Split & multi split M-Series ESIE16-02B Part 2. Troubleshooting 2.2. Error based troubleshooting 2.2.1. Indoor unit 2.2.1.1. “A1-00” – PCB abnormality Trigger Effect Reset The system cannot set the internal set- Unit will stop operating. Power reset via outdoor unit. tings Possible cause Check... -
Page 22: A5-00" - Freeze-Up Protection / Heating Peak Cut Control
RA R32 Split & multi split M-Series ESIE16-02B Part 2. Troubleshooting 2.2. Error based troubleshooting 2.2.1.3. “A5-00” – Freeze-up protection / Heating peak cut control Trigger Effect Reset • during cooling operation, indoor heat Unit will stop operating. Automatic reset when temperature is exchanger temperature is below 0°C within range. -
Page 23: C4-00" - Liquid Pipe Thermistor For Heat Exchanger Abnormality
RA R32 Split & multi split M-Series ESIE16-02B Part 2. Troubleshooting 2.2. Error based troubleshooting 2.2.1.5. “C4-00” – Liquid pipe thermistor for heat exchanger abnormality Trigger Effect Reset Thermistor input is > 4.96 V or < 0.04 V Unit will stop operating. Power reset via outdoor unit. -
Page 24: Uh-00" - Anti-Icing Function In Other Room(S)
RA R32 Split & multi split M-Series ESIE16-02B Part 2. Troubleshooting 2.2. Error based troubleshooting Possible cause Check Corrective action Faulty suction air thermistor. Check suction air thermistor. Replace suction air thermistor when required. Faulty indoor PCB. Check if error still occurs after turning off Adjust power to the indoor PCB. -
Page 25: Outdoor Unit
RA R32 Split & multi split M-Series ESIE16-02B Part 2. Troubleshooting 2.2. Error based troubleshooting 2.2.2. Outdoor unit 2.2.2.1. “E1-00” – Outdoor unit PCB abnormality Trigger Effect Reset Outdoor main PCB detects that EEPROM Unit will stop operating. Manual reset via user interface. is abnormal. -
Page 26: E5-00" - Compressor Motor Lock Or Overheated
RA R32 Split & multi split M-Series ESIE16-02B Part 2. Troubleshooting 2.2. Error based troubleshooting 2.2.2.3. “E5-00” – Compressor motor lock or overheated Trigger Effect Reset Compressor overload is detected. Unit will stop operating. Automatic reset if the unit runs for 60 sec- onds without error. -
Page 27: E7-00" - Fan Motor Abnormality
RA R32 Split & multi split M-Series ESIE16-02B Part 2. Troubleshooting 2.2. Error based troubleshooting Possible cause Check Corrective action Non condensables in refrigerant. Check for non condensables in refriger- In case of suspicion of non condensables, ant. recover, vacuum and recharge with virgin refrigerant. -
Page 28: E8-00" - Compressor Overcurrent Detection
RA R32 Split & multi split M-Series ESIE16-02B Part 2. Troubleshooting 2.2. Error based troubleshooting 2.2.2.6. “E8-00” – Compressor overcurrent detection Trigger Effect Reset When the compressor is running the cur- Unit will stop operating. Manual reset via user interface. rent exceeds 9.25 A ~ 20 A (depending on the unit) for 2.5 seconds. -
Page 29: F3-00" - Discharge Pipe Temperature Abnormality
RA R32 Split & multi split M-Series ESIE16-02B Part 2. Troubleshooting 2.2. Error based troubleshooting 2.2.2.8. “F3-00” – Discharge pipe temperature abnormality Trigger Effect Reset Discharge temperature is too high: Unit will not stop operating. Automatic reset when temperature drops below C°C. -
Page 30: H0-00" - Compressor Sensor System Abnormality
RA R32 Split & multi split M-Series ESIE16-02B Part 2. Troubleshooting 2.2. Error based troubleshooting Possible cause Check Corrective action Faulty outdoor unit main PCB. Check if the HAP LED is blinking in regu- Restore the power to the outdoor main lar intervals. -
Page 31: H8-00" - Compressor Input (Ct) System Abnormality
RA R32 Split & multi split M-Series ESIE16-02B Part 2. Troubleshooting 2.2. Error based troubleshooting Possible cause Check Corrective action Faulty outdoor inverter PCB. Check outdoor inverter PCB. Restore the power to the outdoor inverter PCB. Check if the HAP LED is blinking in regu- lar intervals. -
Page 32: J3-00" - Discharge Pipe Thermistor Abnormality
RA R32 Split & multi split M-Series ESIE16-02B Part 2. Troubleshooting 2.2. Error based troubleshooting 2.2.2.14. “J3-00” – Discharge pipe thermistor abnormality Trigger Effect Reset Thermistor input voltage is > 4.96 V or Unit will stop operating. Manual reset via user interface. <... -
Page 33: J8-00" - Liquid Pipe Thermistor Abnormality
RA R32 Split & multi split M-Series ESIE16-02B Part 2. Troubleshooting 2.2. Error based troubleshooting More info: Check procedures Replacing procedures "Refrigerant thermistors" on page 56 "Replacing thermistors" on page 87 "Main PCB" on page 53 "Replacing main PCB" on page 84 2.2.2.17. -
Page 34: L1-00" - Outdoor Main Pcb Abnormality
RA R32 Split & multi split M-Series ESIE16-02B Part 2. Troubleshooting 2.2. Error based troubleshooting 2.2.2.19. “L1-00” – Outdoor main PCB abnormality Trigger Effect Reset Outdoor main PCB detects current/volt- Unit will stop operating. Manual reset via user interface. age errors. Power reset via outdoor unit. -
Page 35: L4-00" - Inverter Radiating Fin Temperature Abnormality
RA R32 Split & multi split M-Series ESIE16-02B Part 2. Troubleshooting 2.2. Error based troubleshooting Possible cause Check Corrective action Faulty outdoor inverter PCB. Check outdoor inverter PCB. Restore the power to the outdoor inverter PCB. Check if the HAP LED is blinking in regu- Faulty radiation fin thermistor. -
Page 36: L5-00" - Inverter Instantaneous Overcurrent (Ac Output)
RA R32 Split & multi split M-Series ESIE16-02B Part 2. Troubleshooting 2.2. Error based troubleshooting 2.2.2.22. “L5-00” – Inverter instantaneous overcurrent (AC output) Trigger Effect Reset An output overcurrent is detected by Unit will stop operating. Manual reset via user interface. checking the current that flows in the inverter DC section. - Page 37 RA R32 Split & multi split M-Series ESIE16-02B Part 2. Troubleshooting 2.2. Error based troubleshooting Possible cause Check Corrective action Faulty outdoor unit PCB in which radiating Check if the HAP LED is blinking in regu- Restore the power to the outdoor main fin thermistor is connected.
-
Page 38: System
RA R32 Split & multi split M-Series ESIE16-02B Part 2. Troubleshooting 2.2. Error based troubleshooting 2.2.3. System 2.2.3.1. “U0-00” – Refrigerant shortage Trigger Effect Reset Refrigerant shortage detected. Unit will stop operating. Automatic reset. Power reset via outdoor unit. Possible cause Check Corrective action Faulty air thermistor. -
Page 39: U4-00" - Transmission Abnormality Between Indoor Unit And Outdoor Unit
RA R32 Split & multi split M-Series ESIE16-02B Part 2. Troubleshooting 2.2. Error based troubleshooting Possible cause Check Corrective action Faulty or disturbance of the power supply Check if the power supply is conform with Adjust power supply when required. (imbalance >... -
Page 40: U7-00" - Transmission Outdoor Unit-Outdoor Unit Abnormality
RA R32 Split & multi split M-Series ESIE16-02B Part 2. Troubleshooting 2.2. Error based troubleshooting Possible cause Check Corrective action Wiring abnormality between indoor unit Check wiring between indoor unit and out- Adjust wiring between indoor unit and out- and outdoor unit. door unit. -
Page 41: Uf-00" - Wiring And Piping Mismatch
RA R32 Split & multi split M-Series ESIE16-02B Part 2. Troubleshooting 2.2. Error based troubleshooting Possible cause Check Corrective action Improper combination of indoor unit and Check combination. Adjust installation when required. outdoor unit. Wiring abnormality between indoor unit Check wiring between indoor unit and out- Adjust wiring between indoor unit and out- and outdoor unit. -
Page 42: Symptom Based Troubleshooting
RA R32 Split & multi split M-Series ESIE16-02B Part 2. Troubleshooting 2.3. Symptom based troubleshooting 2.3. Symptom based troubleshooting 2.3.1. Indoor unit Not available yet. 2.3.2. Outdoor unit Not available yet. 2.3.3. System Not applicable. 2.3.4. Others Not applicable. Page 42 4/04/17 Version 1.1... -
Page 43: Component Checklist
RA R32 Split & multi split M-Series ESIE16-02B Part 2. Troubleshooting 2.4. Component checklist 2.4. Component checklist Overview of component checklists: Indoor unit ......................................44 Fan motor ....................................44 Outdoor unit......................................45 4-way valve ....................................45 Compressor....................................47 Electronic expansion valve...............................49 Fan motor ....................................51 High pressure sensor ................................52 Main PCB ....................................53 Pressure sensor ..................................54 Refrigerant thermistors................................56... -
Page 44: Indoor Unit
Mechanical check PRELIMINARY ACTIONS Switch off the Daikin unit via the user interface. Switch off the Daikin unit with the field supplied circuit breaker. Remove casing when required. PROCEDURE Check the state of the rotor, replace the rotor if damaged, deformed, cracked or broken. -
Page 45: Outdoor Unit
"Component checklist" on page 111. Switch on the Daikin unit via the user interface, start cooling/defrost operation. If the temperature after the heat exchanger drops, proceed with next step. If the temperature after the heat exchanger rises, the 4-way valve is stuck in heating position, replace the 4-way valve body (refer to "Replacing 4-way valve body"... - Page 46 RA R32 Split & multi split M-Series ESIE16-02B Part 2. Troubleshooting 2.4. Component checklist Switch off Daikin unit with the field supplied circuit breaker. Remove plate work when required. PROCEDURE Switch on the Daikin unit, start heating operation. ARNING ISK OF When reconnecting a connector to the PCB, do not apply force, as this may damage the connector or connector pins of the PCB.
-
Page 47: Compressor
Remove plate work when required. PROCEDURE Open the compressor insulation. Switch on the Daikin unit and measure the U, V, W inverter voltages. All voltages must be identical, if not, replace the inverter PCB. Switch off the Daikin unit via the user interface. - Page 48 RA R32 Split & multi split M-Series ESIE16-02B Part 2. Troubleshooting 2.4. Component checklist Megger the compressor using 500 or 1000 VDC, the insulation must be higher than 3 MΩ. Replace the compressor if the windings and/or insulation measurements fail (refer to "Replacing compressor"...
-
Page 49: Electronic Expansion Valve
Switch off the Daikin unit via the user interface. Switch off the Daikin unit with the field supplied circuit breaker. Switch on the Daikin unit and listen to the expansion valve assembly, if the expansion valve body does not create a latching sound, continue with the electrical check. - Page 50 RA R32 Split & multi split M-Series ESIE16-02B Part 2. Troubleshooting 2.4. Component checklist Connector pin 2-6: connected Connector pin 3-6: connected Connector pin 4-6: connected Harness 5P Check 6P Connector If one or more of the windings have no continuity, replace the expansion valve coil. Page 50 4/04/17 Version 1.1...
-
Page 51: Fan Motor
111. Check procedure Mechanical check PRELIMINARY ACTIONS Switch off the Daikin unit via the user interface. Switch off the Daikin unit with the field supplied circuit breaker. Remove plate work when required (refer to "Basic removal" on page 68). PROCEDURE Check the state of the propeller, replace the propeller if damaged, deformed, cracked or broken (refer to "Replacing propeller... -
Page 52: High Pressure Sensor
Electrical check PRELIMINARY ACTIONS Switch off the Daikin unit via the user interface. Switch off the Daikin unit with the field supplied circuit breaker. Remove plate work when required. PROCEDURE Connect a pressure gauge to the high pressure service port and read the pressure. -
Page 53: Main Pcb
RA R32 Split & multi split M-Series ESIE16-02B Part 2. Troubleshooting 2.4. Component checklist Outdoor unit PCB Black Measure DC voltage here Microcomputer White A/D input In case no voltage is measured across high pressure sensor connector: pin 1-3; do following checks: NFORMATION If 1 or more checks fail, replace the high pressure sensor. -
Page 54: Pressure Sensor
Electrical check PRELIMINARY ACTIONS Switch off the Daikin unit via the user interface. Switch off the Daikin unit with the field supplied circuit breaker. Remove plate work when required. PROCEDURE Connect a pressure gauge to the high pressure service port and read the pressure. - Page 55 RA R32 Split & multi split M-Series ESIE16-02B Part 2. Troubleshooting 2.4. Component checklist Outdoor unit PCB Black Measure DC voltage here Microcomputer White A/D input In case no voltage is measured across high pressure sensor connector: pin 1-3; do following checks: NFORMATION If 1 or more checks fail, replace the high pressure sensor.
-
Page 56: Refrigerant Thermistors
Mechanical check PRELIMINARY ACTIONS Switch off the Daikin unit via the user interface. Switch off the Daikin unit with the field supplied circuit breaker. 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 57 RA R32 Split & multi split M-Series ESIE16-02B Part 2. Troubleshooting 2.4. Component checklist • The resistance values are defined by below table "Thermistor resistance / temperature characteristics (type 1)": Resistance at 23°C: 21.85 kΩ. Resistance at 24°C: 20.90 kΩ. •...
-
Page 58: System
RA R32 Split & multi split M-Series ESIE16-02B Part 2. Troubleshooting 2.4. Component checklist T °C kΩ T °C kΩ T °C kΩ T °C kΩ T °C kΩ 103.18 37.18 15.10 6.78 3.32 97.73 35.45 14.48 6.53 3.21 92.61 33.81 13.88 6.53... -
Page 59: Other Capacity Range
RA R32 Split & multi split M-Series ESIE16-02B Part 2. Troubleshooting 2.5. Other capacity range 2.5. Other capacity range Not applicable. 4/04/17 Version 1.1 Page 59... - Page 60 RA R32 Split & multi split M-Series ESIE16-02B Part 2. Troubleshooting 2.5. Other capacity range Page 60 4/04/17 Version 1.1...
-
Page 61: Part 3. Repair
3.1.2. Recovery procedure 3.1.2.1. Outdoor unit casing Switch off the Daikin unit via the user interface. Manually open the expansion valve (located on the outdoor unit). Connect the vacuum pump, manifold, recovery unit and refrigerant bottle to the service port as shown below. -
Page 62: Figure 3-1: 1 Service Port At The Stop Valves
RA R32 Split & multi split M-Series ESIE16-02B Part 3. Repair 3.1. Refrigerant repair procedures In case of 1 service port at the stop valves Figure 3-1: 1 service port at the stop valves 1. Vacuum pump 3. To recovery pump 2. -
Page 63: Refrigerant Pump Down
RA R32 Split & multi split M-Series ESIE16-02B Part 3. Repair 3.1. Refrigerant repair procedures Figure 3-2: 3 service ports at the stop valves > 1. Vacuum pump 2. To recovery pump NFORMATION See instruction of the recovery pump supplier how to recover the refrigerant. 3.1.3. -
Page 64: Large Outdoor Unit
Check on manifold if vacuum is reached, close gas stop valve and forced cooling operation. 3.1.3.2. Large outdoor unit Stop all demands for the Daikin unit. Switch OFF / ON the power supply of the outdoor unit. Carry out pump down operation. -
Page 65: Service Tools
3.2. Service tools 3.2. Service tools For an overview of the applicable service tools, please check the Daikin Business Portal: http://www.mydaikin.eu Go to the tab “After-sales support” on the left side and then select “Technical support”. You will then find a button “Service tools” which gives you an overview on which service tool to use for which product. Also additional information on the service tool (instruction, latest software) can be found there. -
Page 66: Unit Specific Repair Procedures
RA R32 Split & multi split M-Series ESIE16-02B Part 3. Repair 3.3. Unit specific repair procedures 3.3. Unit specific repair procedures Overview: Indoor unit......................................67 Outdoor unit......................................68 Basic removal ..................................68 Replacing switch box................................71 Replacing 4-way valve body..............................73 Replacing 4-way valve coil .............................. -
Page 67: Indoor Unit
RA R32 Split & multi split M-Series ESIE16-02B Part 3. Repair 3.3. Unit specific repair procedures 3.3.1. Indoor unit Not applicable. 4/04/17 Version 1.1 Page 67... -
Page 68: Outdoor Unit
3.3.2.1.2 Removing refrigerant connection cover PRELIMINARY ACTIONS Switch off the Daikin unit via the user interface. Switch off the Daikin unit with the field supplied circuit breaker. PROCEDURE Removal Loosen and remove 1 screw (1) that fix the refrigerant connection cover. -
Page 69: Figure 3-4: Removing The Top Plate
1. Screw 3.3.2.1.4 Removing the front plate PRELIMINARY ACTIONS Switch off the Daikin unit via the user interface. Switch off the Daikin unit with the field supplied circuit breaker. PROCEDURE Removal Remove the top plate. Loosen and remove the 8 screws (1) that fix the front plate. -
Page 70: Figure 3-5: Removing The Front Plate
1. Screw 3.3.2.1.5 Removing the compressor sound insulation PRELIMINARY ACTIONS Switch off the Daikin unit via the user interface. Switch off the Daikin unit with the field supplied circuit breaker. PROCEDURE Removal Remove the top plate. Remove the front plate. -
Page 71: Replacing Switch Box
3.3. Unit specific repair procedures 3.3.2.2. Replacing switch box PRELIMINARY ACTIONS Switch off the Daikin unit via the user interface. Switch off the Daikin unit with the field supplied circuit breaker. Remove plate work when required, refer to "Basic removal" on page PROCEDURE Removal Remove the insulation (1). -
Page 72: Figure 3-7: Removing The Switch Box
RA R32 Split & multi split M-Series ESIE16-02B Part 3. Repair 3.3. Unit specific repair procedures Figure 3-7: Removing the switch box 1. Insulation 6. Wire clamp 2. Main PCB 7. Screw 3. Electrical power wiring 8. Right side plate assembly 4. -
Page 73: Replacing 4-Way Valve Body
PROCEDURE Removal Remove any parts that block the way to the 4-way valve. NFORMATION Follow local regulations and Daikin refrigerant repair procedures during the repair of your unit, refer to "Refriger- ant repair procedures" on page AUTION The maximum applied Nitrogen pressure must not exceed 0.02 MPa. - Page 74 RA R32 Split & multi split M-Series ESIE16-02B Part 3. Repair 3.3. Unit specific repair procedures NFORMATION Install the putty on the 4-way valve. Install the compressor sound insulation in the same location. Proceed in reverse order. Page 74 4/04/17 Version 1.1...
-
Page 75: Replacing 4-Way Valve Coil
3.3.2.4. Replacing 4-way valve coil PRELIMINARY ACTIONS Switch off the Daikin unit via the user interface. Switch off the Daikin unit with the field supplied circuit breaker. Remove plate work when required. Remove any part that block the way to the 4-way valve coil. -
Page 76: Replacing Compressor
Remove plate work when required. Remove any part that blocks the way to the compressor. PROCEDURE NFORMATION Follow local regulations and Daikin refrigerant repair procedures during the repair of your unit, refer to "Refriger- ant repair procedures" on page AUTION The maximum applied Nitrogen pressure must not exceed 0.02 MPa. -
Page 77: Figure 3-10: Removing The Compressor
RA R32 Split & multi split M-Series ESIE16-02B Part 3. Repair 3.3. Unit specific repair procedures Figure 3-10: Removing the compressor 1. Screw 6. Nut 2. Partition plate assembly 7. Compressor 3. Terminal cover 8. Putty 4. Compressor wiring 9. Dampers 5. - Page 78 RA R32 Split & multi split M-Series ESIE16-02B Part 3. Repair 3.3. Unit specific repair procedures Installation AUTION The oil in the compressor is hygroscopic. Remove the caps from the compressor piping as late as possible. NFORMATION Before installing a new compressor, determine the cause of the compressor failure and take all required corrective actions.
-
Page 79: Replacing Dc Fan Motor Assembly
3.3.2.6. Replacing DC fan motor assembly PRELIMINARY ACTIONS Switch off the Daikin unit via the user interface. Switch off the Daikin unit with the field supplied circuit breaker. Remove the propeller fan blade assembly, refer to "Replacing propeller fan blade assembly" on page 149. -
Page 80: Figure 3-11: Removing The Dc Fan Motor Assembly
RA R32 Split & multi split M-Series ESIE16-02B Part 3. Repair 3.3. Unit specific repair procedures Figure 3-11: Removing the DC fan motor assembly 1. Insulation 5. Harness retainer 2. Fan motor assembly harness 6. Screw 3. Connector 7. Fan motor assembly 4. -
Page 81: Replacing Expansion Valve Body
Remove plate work when required. Remove any part that block the way to the expansion valve body. PROCEDURE NFORMATION Follow local regulations and Daikin refrigerant repair procedures during the repair of your unit, refer to "Refriger- ant repair procedures" on page AUTION The maximum applied Nitrogen pressure must not exceed 0.02 MPa. -
Page 82: Replacing Expansion Valve Motor
3.3.2.8. Replacing expansion valve motor PRELIMINARY ACTIONS Switch off the Daikin unit via the user interface. Switch off the Daikin unit with the field supplied circuit breaker. Remove plate work when required. Remove any part that block the way to the expansion valve motor. -
Page 83: Figure 3-14: Locking The Expansion Valve Motor
RA R32 Split & multi split M-Series ESIE16-02B Part 3. Repair 3.3. Unit specific repair procedures Figure 3-14: Locking the expansion valve motor 1. Pipe retention clip 3. Expansion valve motor 2. Pipe 4/04/17 Version 1.1 Page 83... -
Page 84: Replacing Main Pcb
3.3. Unit specific repair procedures 3.3.2.9. Replacing main PCB PRELIMINARY ACTIONS Switch off the Daikin unit via the user interface. Switch off the Daikin unit with the field supplied circuit breaker. Remove the switch box, refer to "Replacing switch box" on page PROCEDURE Removal Cut the 2 cable ties (1). -
Page 85: Replacing Propeller Fan Blade Assembly
3.3.2.10. Replacing propeller fan blade assembly PRELIMINARY ACTIONS Switch off the Daikin unit via the user interface. Switch off the Daikin unit with the field supplied circuit breaker. Remove the propeller fan blade assembly, refer to "Replacing propeller fan blade assembly" on page 149. -
Page 86: Figure 3-16: Removing The Dc Fan Motor Assembly
RA R32 Split & multi split M-Series ESIE16-02B Part 3. Repair 3.3. Unit specific repair procedures Figure 3-16: Removing the DC fan motor assembly 1. Insulation 5. Harness retainer 2. Fan motor assembly harness 6. Screw 3. Connector 7. Fan motor assembly 4. -
Page 87: Replacing Thermistors
3.3. Unit specific repair procedures 3.3.2.11. Replacing thermistors PRELIMINARY ACTIONS Switch off the Daikin unit via the user interface. Switch off the Daikin unit with the field supplied circuit breaker. Remove plate work when required, see "Basic removal" on page PROCEDURE... -
Page 88: Setting Test Mode For Inverter Checker
RA R32 Split & multi split M-Series ESIE16-02B Part 3. Repair 3.3. Unit specific repair procedures 3.3.2.12. Setting test mode for inverter checker 3.3.2.12.1 For 2MXM outdoor units Activate power transistor test operation from the indoor unit with the remote controller. ARC466 Series Turn the system on. -
Page 89: Part 4. Maintenance
RA R32 Split & multi split M-Series ESIE16-02B Part 4. Maintenance 4.1. Indoor unit Part 4. Maintenance This part contains the following chapters: Indoor unit ......................................89 Outdoor unit......................................90 4.1. Indoor unit ARNING Before performing any maintenance, power off the unit. NFORMATION After all checks are made, make sure the water and brine circuits are filled properly again and fluid pressures are in line with regulations (±... -
Page 90: Outdoor Unit
RA R32 Split & multi split M-Series ESIE16-02B Part 4. Maintenance 4.2. Outdoor unit 4.2. Outdoor unit 4.2.1. General maintenance outdoor unit Outdoor unit coil Straighten hair fins. Clear coil from dust, leaves, etc. with a fin-comb, or compressed air/N2. Avoid bending or damaging of the Alu fins during the cleaning process. -
Page 91: Part 5. Appendix
RA R32 Split & multi split M-Series ESIE16-02B Part 5. Appendix Part 5. Appendix This part contains the following chapters: Field setting ......................................93 Detailed information setting mode................................97 Wiring diagram .....................................98 Piping diagram ....................................104 Component overview of unit................................110 Product specific information ................................111 Switch box ...................................... - Page 92 RA R32 Split & multi split M-Series ESIE16-02B Part 5. Appendix Page 92 4/04/17 Version 1.1...
-
Page 93: Field Setting
RA R32 Split & multi split M-Series ESIE16-02B Part 5. Appendix 5.1. Field setting 5.1. Field setting 5.1.1. Indoor unit 5.1.1.1. Indoor fan control during thermostat off in cooling Model: FTXM-M, ATXM-M (BMS) / Remote controller: ARC466A33 Software logic change for thermostat OFF is for cooling operation (to increase SEER) (for main stream models FTXM/CTXM). Figure 5-1: How to change fan OFF to ON when in cooling thermo off Temp Temp... -
Page 94: Outdoor Unit
RA R32 Split & multi split M-Series ESIE16-02B Part 5. Appendix 5.1. Field setting 5.1.2. Outdoor unit 5.1.2.1. Facility setting for outdoor split units This function is designed for facilities such as equipment or computer rooms. It is never to be used in a residence or office where people occupy the space. Cutting jumper 6 (J6) on the circuit board will expand the operation range down to -15°C. -
Page 95: Figure 5-4: Dip Switch Location
RA R32 Split & multi split M-Series ESIE16-02B Part 5. Appendix 5.1. Field setting 5.1.2.2.2 Dip switch settings Figure 5-4: Dip switch location 1. Service monitor LEDs 6. Cool/heat selector 2. Connector for D checker 7. J_DP jumper 3. SW4 8. -
Page 96: Remote Controller
RA R32 Split & multi split M-Series ESIE16-02B Part 5. Appendix 5.1. Field setting 5.1.2.2.3 Cool mode lock Use the S15 connector to set the unit to cool only. Short-circuit pins 3 and 5 of the connector S15 to set to only cool (C). The following specifications apply to the connector housing and pins. -
Page 97: Detailed Information Setting Mode
RA R32 Split & multi split M-Series ESIE16-02B Part 5. Appendix 5.2. Detailed information setting mode 5.2. Detailed information setting mode 5.2.1. Indoor unit Not available. 5.2.2. Outdoor unit Not available. 5.2.3. Remote controller Not available. 4/04/17 Version 1.1 Page 97... -
Page 98: Wiring Diagram
RA R32 Split & multi split M-Series ESIE16-02B Part 5. Appendix 5.3. Wiring diagram 5.3. Wiring diagram 5.3.1. Indoor unit Not applicable. Page 98 4/04/17 Version 1.1... -
Page 99: Outdoor Unit
RA R32 Split & multi split M-Series ESIE16-02B Part 5. Appendix 5.3. Wiring diagram 5.3.2. Outdoor unit 5.3.2.1. 2MXM50M Figure 5-7: Wiring diagram - outdoor unit 2MXM50M 5.3.2.2. 3MXM68M Figure 5-8: Wiring diagram - outdoor unit 3MXM68M GRN/YLW Sheet metal Wiring diagram... -
Page 100: 4Mxm-M
BRN: brown Z1C-Z5C Ferrite core GRN: green RED: red Switching power supply 3D100361A 5.3.2.4. 5MXM-M Figure 5-10: Wiring diagram - outdoor unit 2MXM50M GRN/YLW Sheet metal Wiring diagram MS M1C Power supply PCB2 SW2 SW4 SW6 A 1 2 3 4 5... -
Page 101: Rxj20-35M
RA R32 Split & multi split M-Series ESIE16-02B Part 5. Appendix 5.3. Wiring diagram 5.3.2.5. RXJ20-35M Figure 5-11: Wiring diagram - outdoor unit RXJ20-35M Wiring diagram For the power requirements, refer to the nameplate. Field wiring Indoor IPM1 MRM10 MRM20 V150 MR30 W V U... -
Page 102: Rxm42-50M
RA R32 Split & multi split M-Series ESIE16-02B Part 5. Appendix 5.3. Wiring diagram 5.3.2.8. RXM42-50M Figure 5-14: Wiring diagram - outdoor unit RXM42-50M Wiring diagram Field wiring Indoor IPM1 MRM10 ∼ MRM20 ∼ MR30 3.15A 3.15A PCB1 Outdoor MRCW Switching power supply Electronic expansion valve coil X11A... -
Page 103: Rxm71M
RA R32 Split & multi split M-Series ESIE16-02B Part 5. Appendix 5.3. Wiring diagram 5.3.2.10. RXM71M Figure 5-16: Wiring diagram - outdoor unit RXM71M Wiring diagram For the power requirements, refer to the nameplate. Field wiring Indoor IPM1 MRM10 To indoor unit ∼... -
Page 104: Piping Diagram
RA R32 Split & multi split M-Series ESIE16-02B Part 5. Appendix 5.4. Piping diagram 5.4. Piping diagram 5.4.1. Indoor unit Not applicable. 5.4.2. Outdoor unit 5.4.2.1. 2MXM40M Figure 5-17: Piping diagram - outdoor unit 2MXM40M Outdoor air temperature thermistor Heat exchanger Branch pipe Motor-operated valve 7.0CuT... -
Page 105: 3Mxm68M
RA R32 Split & multi split M-Series ESIE16-02B Part 5. Appendix 5.4. Piping diagram 5.4.2.2. 3MXM68M Figure 5-18: Piping diagram - outdoor unit 3MXM68M Electronic expansion valve Heat exchanger Outdoor air temperature thermistor Thermistor (liquid) Filter Refnet header 7.9CuT Room 7.9CuT 6.4CuT 7.9CuT... -
Page 106: 5Mxm-M
RA R32 Split & multi split M-Series ESIE16-02B Part 5. Appendix 5.4. Piping diagram 5.4.2.4. 5MXM-M Figure 5-20: Piping diagram - outdoor unit 2MXM50M Electronic expansion valve Outdoor air temperature thermistor 7.9CuT Thermistor (liquid) Filter Heat exchanger 7.9CuT 7.9CuT 6.4CuT... -
Page 107: Rxj50M
RA R32 Split & multi split M-Series ESIE16-02B Part 5. Appendix 5.4. Piping diagram 5.4.2.6. RXJ50M Figure 5-22: Piping diagram - outdoor unit RXJ50M Heat exchanger 7.9CuT Outdoor air temperature thermistor 7.9CuT 7.9CuT 7.9CuT 7.9CuT Capillary tube 7.9CuT 7.9CuT 4.0CuT 7.9CuT 7.9CuT 7.9CuT... -
Page 108: Rxm42-50M
RA R32 Split & multi split M-Series ESIE16-02B Part 5. Appendix 5.4. Piping diagram 5.4.2.8. RXM42-50M Figure 5-24: Piping diagram - outdoor unit RXM42-50M Heat exchanger 7.9CuT Outdoor air temperature thermistor 7.9CuT 7.9CuT 7.9CuT 7.9CuT Capillary tube 7.9CuT 7.9CuT 4.0CuT 7.9CuT 7.9CuT 7.9CuT... -
Page 109: Rxm71M
RA R32 Split & multi split M-Series ESIE16-02B Part 5. Appendix 5.4. Piping diagram 5.4.2.10. RXM71M Figure 5-26: Piping diagram - outdoor unit RXM71M Refrigerant flow Heat exchanger Outdoor temperature Cooling Thermistor 7.0 CuT Heat exchanger thermistor Heating 7.0 CuT Capillary tube 1 7.0 CuT 4.0 CuT... -
Page 110: Component Overview Of Unit
RA R32 Split & multi split M-Series ESIE16-02B Part 5. Appendix 5.5. Component overview of unit 5.5. Component overview of unit 5.5.1. Indoor unit Not available yet. 5.5.2. Outdoor unit Figure 5-27: Component overview - outdoor unit 1. Thermistor lead wire connector 8. -
Page 111: Product Specific Information
RA R32 Split & multi split M-Series ESIE16-02B Part 5. Appendix 5.6. Product specific information 5.6. Product specific information 5.6.1. Error codes 5.6.1.1. “E7-00” – Fan motor abnormality Unit will automatically reset the error after a continuous run for 60 minutes without any other error code. 5.6.1.2. -
Page 112: Field Information Report
RA R32 Split & multi split M-Series ESIE16-02B Part 5. Appendix 5.8. Field information report 5.8. Field information report See next page. Page 112 4/04/17 Version 1.1... - Page 113 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 114 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 A1P: Software version hydro PCB A5P: Software version user interface: Software version outdoor PCB:...