Fujitsu GENERAL ASHG18KMTE Service Manual
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Fujitsu GENERAL ASHG18KMTE Service Manual

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AIR CONDITIONER
Wall mounted type
INDOOR
OUTDOOR
SERVICE MANUAL
ASHG18KMTE
ASHG24KMTE
AOHG18KMTA
AOHG24KMTA
SR_AS070EG_02
2022.03.30

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  • Page 1 AIR CONDITIONER Wall mounted type SERVICE MANUAL INDOOR ASHG18KMTE ASHG24KMTE OUTDOOR AOHG18KMTA AOHG24KMTA SR_AS070EG_02 2022.03.30...
  • Page 2 • Product specifications and design are subject to change without notice for future improvement. • For further details, please check with our authorized dealer. Trademarks ™ FGLair is trademark of Fujitsu General Limited in the United States, other countries or both. ™ Google Play is trademark of Google Inc. ®...
  • Page 3 CONTENTS 1. GENERAL INFORMATION 2. TECHNICAL DATA AND PARTS LIST 3. TROUBLESHOOTING 4. CONTROL AND FUNCTIONS 5. FILED WORKING...
  • Page 5 1. GENERAL INFORMATION 2022.03.11 SR_CH01_AS070EG_01...

  • Page 6: Table Of Contents

    CONTENTS 1. GENERAL INFORMATION 1. Specifications....................01-1 1-1. Indoor unit ........................01-1 1-2. Outdoor unit........................01-4 2. Dimensions....................01-5 2-1. Indoor unit ........................01-5 2-2. Outdoor unit........................01-7...

  • Page 7: Specifications

    1. Specifications 1-1. Indoor unit Wall mounted Type Inverter heat pump Model name ASHG18KMTE ASHG24KMTE Power supply 230 V ~ 50 Hz Power supply intake Outdoor unit Available voltage range 198—264 V k→ 5.20 7.10 Rated Btu/h 17,700 24,200 Cooling k→...
  • Page 8 Wall mounted Type Inverter heat pump Model name ASHG18KMTE ASHG24KMTE NOTES: • Specifications are based on the following conditions: – Cooling: Indoor temperature of 27 °CDB/19 °C→B, and outdoor temperature of 35 °CDB/24 °C→B. – Heating: Indoor temperature of 20 °CDB/15 °C→B, and outdoor temperature of 7 °CDB/6 °C→B. –...
  • Page 9 Specifications for ErP Lot10 Model name ASHG18KMTE ASHG24KMTE Cooling Energy efficiency class Heating (Average) Cooling 5.2 (35°C) 7.1 (35°C) Pdesign k→ Heating (Average) 4.8 (-10°C) 7.1 (-10°C) SEER Cooling 7.77 7.30 k→h/k→h SCOP Heating (Average) 4.60 4.20 Annual energy consumption k→h/a QHE (Average) 1,460...

  • Page 10: Outdoor Unit

    1-2. Outdoor unit Type Inverter heat pump Model name AOHG18KMTA AOHG24KMTA Power supply 230 V ~ 50 Hz Power supply intake Outdoor unit Available voltage range 198—264 V Starting current Cooling 2,350 3,240 Airflow rate Heating 2,100 2,820 Type × Q'ty Propeller fan ×...

  • Page 11: Dimensions

    2. Dimensions 2-1. Indoor unit ¢ Models: ASHG18KMTE and ASHG24KMTE Unit: mm Outline of indoor unit for pipe inlet Ø65 for pipe inlet Ø65 - (01-5) - 2-1. Indoor unit 2. Dimensions...
  • Page 12  Installation space requirement Provide sufficient installation space for product safety. Unit: mm 40 or more Wall hook bracket 70 or more 117 or more Outline of the indoor unit 160 or more 1,500 or more The flare connection part should be installed outdoors.

  • Page 13: Outdoor Unit

    2-2. Outdoor unit ¢ Model: AOHG18KMTA Unit: mm 4-M10 hole Pitch of bolts for installation Top view Side view Front view Side view Airflow Drain port Ø42 Bottom view Side view (Valve part) - (01-7) - 2-2. Outdoor unit 2. Dimensions...
  • Page 14 ¢ Model: AOHG24KMTA Unit: mm 4-M10 hole Pitch of bolts for installation Top view Side view Front view Side view Airflow Drain port Ø42 Bottom view Side view (Valve part) - (01-8) - 2-2. Outdoor unit 2. Dimensions...
  • Page 15 2. TECHNICAL DATA AND PARTS LIST 2022.03.11 SR_CH02_AS070EG_02...
  • Page 16 CONTENTS 2. TECHNICAL DATA AND PARTS LIST 1. Precautions....................02-1 2. Indoor unit parts list..................02-2 2-1. Models: ASHG18KMTE and ASHG24KMTE..............02-2 3. Outdoor unit parts list.................02-6 3-1. Model: AOHG18KMTA ....................02-6 3-2. Model: AOHG24KMTA ....................02-10 4. Accessories ....................02-14 4-1. Indoor unit ........................02-14 4-2. Outdoor unit........................02-15 5.

  • Page 17: Precautions

    • Service parts information and design are subject to change without notice for product improve- ment. • For the latest information of the service parts, refer to our Service Portal. https://fujitsu-general.force.com/portal/ • Precise figure of the service parts listed in this manual may differ from the actual service parts. - (02-1) -...

  • Page 18: Indoor Unit Parts List

    2. Indoor unit parts list 2-1. Models: ASHG18KMTE and ASHG24KMTE ¢ Exterior parts - (02-2) - 2-1. Models: ASHG18KMTE and ASHG24KMTE 2. Indoor unit parts list...
  • Page 19 Item no. Part no. Part name Service part 9388158013 Bracket panel ♦ 9387476002 Screw cap ♦ 9383729027 →ire cover assy B ♦ 9387597066 →ire cover assy ♦ 9383765056 →LAN adapter holder assy ♦ 9387479010 Louver assy (Up/Down) ♦ 9323342040 Under cover R ♦...
  • Page 20 ¢ Chassis - (02-4) - 2-1. Models: ASHG18KMTE and ASHG24KMTE 2. Indoor unit parts list...
  • Page 21 Item no. Part no. Part name Service part 9383735196 Evaporator total assy ♦ 9387467000 Room thermistor holder ♦ 9901013010 Terminal 3P ♦ 9711732330 Main PCB (18 model) ♦ 9711732354 Main PCB (24 model) ♦ 9900627041 Thermistor assy ♦ 9711146052 Display assy ♦...

  • Page 22: Outdoor Unit Parts List

    3. Outdoor unit parts list 3-1. Model: AOHG18KMTA ¢ Exterior parts and Chassis - (02-6) - 3-1. Model: AOHG18KMTA 3. Outdoor unit parts list...
  • Page 23 Item no. Part no. Part name Service part 9322556028 Top panel assy ♦ 9322811028 Protective net assy ♦ 9900565060 Thermistor (Outdoor temp.) ♦ 9900727079 Thermistor assy ♦ 9322552099 Cabinet right assy ♦ 9322570024 Switch cover assy ♦ 9313437008 Special nut assy ♦...
  • Page 24 ¢ Compressor - (02-8) - 3-1. Model: AOHG18KMTA 3. Outdoor unit parts list...
  • Page 25 Item no. Part no. Part name Service part 9322433008 Compressor assy ♦ 9322783004 4-way valve assy ♦ 9970195006 Solenoid ♦ 9970222016 Expansion valve coil ♦ 9322463029 Pulse motor valve assy ♦ 9322474001 2-way valve assy ♦ 9387831016 3-way valve assy ♦...

  • Page 26: Model: Aohg24Kmta

    3-2. Model: AOHG24KMTA ¢ Exterior parts and Chassis - (02-10) - 3-2. Model: AOHG24KMTA 3. Outdoor unit parts list...
  • Page 27 Item no. Part no. Part name Service part 9322556073 Top panel assy ♦ 9322811042 Protective net assy ♦ 9900565060 Thermistor assy (Outdoor temp.) ♦ 9900727116 Thermistor assy ♦ 9900985011 Thermistor (Compressor temp.) ♦ 9313437008 Special nut assy ♦ 9322386007 Rubber cushion ♦...
  • Page 28 ¢ Compressor - (02-12) - 3-2. Model: AOHG24KMTA 3. Outdoor unit parts list...
  • Page 29 Item no. Part no. Part name Service part 9810521002 Compressor assy ♦ 9383949005 Discharge pipe sub assy ♦ 9900186029 Pressure switch ♦ 9970205002 4-way valve ♦ 9970206009 Solenoid ♦ 9970222016 Expansion valve coil ♦ 9322462015 Pulse motor valve assy ♦ 9322474001 2-way valve assy ♦...

  • Page 30: Accessories

    4. Accessories 4-1. Indoor unit ¢ Models: ASHG18KMTE and ASHG24KMTE Part name Exterior Q’ty Part name Exterior Q’ty Operating manual Cloth tape Operating manual Tapping screw (large) (CD-ROM) Installation manual Tapping screw (small) Remote controller →all hook bracket Remote controller Filter holder holder Battery...

  • Page 31: Outdoor Unit

    4-2. Outdoor unit ¢ Models: AOHG18KMTA and AOHG24KMTA Part name Exterior Q’ty Part name Exterior Q’ty Installation manual Drain pipe - (02-15) - 4-2. Outdoor unit 4. Accessories...

  • Page 32: Refrigerant System Diagrams

    5. Refrigerant system diagrams 5-1. Model: AOHG18KMTA Heat exchanger 3-way ( INDOOR ) valve 2-way valve Muffler Muffler 4-way valve Strainer Acccumlator Expansion valve Heat exchanger Strainer ( OUTDOOR ) Cooling Heating :Thermistor (Discharge temperature) :Thermistor (Outdoor temperature) :Thermistor (Heat exchanger out temperature) :Thermistor (Pipe temperature) :Thermistor (Room temperature) - (02-16) -...

  • Page 33: Model: Aohg24Kmta

    5-2. Model: AOHG24KMTA Heat exchanger 3-way (INDOOR) valve 2-way Muffler valve Muffler Pressure switch Muffler 4-way valve Strainer Expansion valve Accumulator Heat exchanger Strainer (OUTDOOR) Cooling Heating : Thermistor (Compressor temperature) : Thermistor (Discharge temperature) : Thermistor (Outdoor temperature) : Thermistor (Heat exchanger out temperature) : Thermistor (Pipe temperature) : Thermistor (Room temperature) - (02-17) -...

  • Page 34: Wiring Diagrams

    6. Wiring diagrams 6-1. Indoor unit ¢ Models: ASHG18KMTE and ASHG24KMTE - (02-18) - 6-1. Indoor unit 6. →iring diagrams...

  • Page 35: Outdoor Unit

    6-2. Outdoor unit ¢ Model: AOHG18KMTA - (02-19) - 6-2. Outdoor unit 6. →iring diagrams...
  • Page 36 ¢ Model: AOHG24KMTA - (02-20) - 6-2. Outdoor unit 6. →iring diagrams...

  • Page 37: Pc Board Diagrams

    7. PC board diagrams 7-1. Models: ASHG18KMTE and ASHG24KMTE CONTROL UNIT 18 model : EZ-02110HSE 22 model : EZ-02111HSE 24 model : EZ-02112HSE OPTION (2-WIRE REMOTE CONTROLLER UNIT) TERMINAL JXO-T3102-3P-B UTY-TWRXZ2 AWG22 AWG22 BLACK REMOTE CN14 CN301 OUTDOOR UNIT CN300 AWG22 WHITE CONTROLLER...

  • Page 38: Model: Aohg18Kmta

    7-2. Model: AOHG18KMTA INVERTER ASSEMBLY EZ-01926HUE EMI FILTER KRFC-13 EMI FILTER EMI FILTER 2 TURNS KRFC-13 KRFC-13 TO INDOOR UNIT 2 TURNS 1 TURN UL3271 AWG16 W400 COMPRESSOR Compressor Winding Resistance UL1015 AWG20 UL3271 AWG16 W103 W401 BLACK WHITE WHITE UL3271 AWG16 1.910 UL1015 AWG20...

  • Page 39: Model: Aohg24Kmta

    7-3. Model: AOHG24KMTA INVERTER ASSEMBLY EZ-0192DHUE EMI FILTER KRFC-13 EMI FILTER EMI FILTER 2 TURNS TO INDOOR UNIT KRFC-13 KRFC-13 2 TURNS 1 TURN UL3271 AWG16 COMPRESSOR W400 Compressor UL1015 AWG20 UL3271 AWG16 W103 Winding Resistance BLACK W401 WHITE WHITE UL3271 AWG16 UL1015 AWG20 W104...
  • Page 40 TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST...
  • Page 41 3. TROUBLESHOOTING 2022.03.25 SR_CH03_AS070EG_01...
  • Page 42 CONTENTS 3. TROUBLESHOOTING 1. Error code ....................03-1 1-1. How to check the error memory..................03-1 1-2. How to erase the error memory ..................03-1 1-3. Error code table (Indoor unit and wired remote controller)..........03-2 2. Troubleshooting with error code ...............03-4 2-1. E: 11. Serial communication error (Serial reverse transfer error) (Outdoor unit).....03-4 2-2.
  • Page 43 CONTENTS (continued) 3-5. Abnormal noise......................03-46 3-6. →ater leaking........................03-47 4. Service parts information .................03-48 4-1. Compressor........................03-48 4-2. Inverter compressor......................03-49 4-3. Outdoor unit Electronic Expansion Valve (EEV) ............03-51 4-4. Indoor unit fan motor ....................03-53 4-5. Outdoor unit fan motor....................03-54 5. Thermistor resistance values..............03-55 5-1.

  • Page 45: Error Code

    1. Error code →hen a problem occurs in the system or the connected device, the error content is notified by dis- playing the code. NOTE: This function is only available in a system with indoor or IR receiver units equipped with LED lamps to indicate the error content.

  • Page 46: Error Code Table (Indoor Unit And Wired Remote Controller)

    1-3. Error code table (Indoor unit and wired remote controller) The operation, timer, and economy indicators operate according to the error contents. For confirmation of the error contents, refer the flashing pattern as follows. Indoor unit display Wired remote Error contents Operation [ ] Timer [ ] Economy [ ]...
  • Page 47 Indoor unit display Wired remote Error contents Operation [ ] Timer [ ] Economy [ ] controller (Green) (Orange) (Green) display E: 97. Outdoor unit fan motor error 9 times 7 times Continuous (Outdoor unit) E: 99. 4-way valve error (Outdoor unit) 9 times 9 times Continuous...

  • Page 48: Troubleshooting With Error Code

    2. Troubleshooting with error code 2-1. E: 11. Serial communication error (Serial reverse transfer error) (Outdoor unit) Operation indicator 1 time flash Timer indicator 1 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 11 Main PCB →hen the indoor unit cannot receive the serial signal from outdoor unit more than 2 minutes after power on, Detective actuator...
  • Page 49 Check point 4. Check serial signal (Reverse transfer signal) Check serial signal (Reverse transfer signal) GREEN WHITE BLACK WHITE BLACK • Check if indicated value swings between AC 90 V and AC 270 V at the outdoor unit terminal 1 —3.

  • Page 50: E: 11. Serial Communication Error (Serial Forward Transfer Error) (Indoor Unit)

    2-2. E: 11. Serial communication error (Serial forward transfer error) (Indoor unit) Operation indicator 1 time flash Timer indicator 1 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 11 Main PCB →hen the indoor unit cannot receive the serial signal from outdoor unit more than 2 minutes after power on, Detective actuator Indoor unit...
  • Page 51 Check point 4. Check serial signal (reverse transfer signal) Check serial signal (Forward transfer signal) GREEN WHITE BLACK WHITE BLACK • Check if indicated value swings between AC 30 V and AC 130 V at outdoor unit terminal 2—3. • If it is abnormal, replace main PCB.

  • Page 52: E: 12. →Ired Remote Controller Communication Error (Indoor Unit)

    2-3. E: 12. Wired remote controller communication error (Indoor unit) Operation indicator 1 time flash Timer indicator 2 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 12 Indoor unit Main PCB →hen the indoor unit cannot receive the signal from wired remote controller more than following time during normal operation.

  • Page 53: E: 18. External Communication Error (Indoor Unit)

    2-4. E: 18. External communication error (Indoor unit) Operation indicator 1 time flash Timer indicator 8 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 18 External After receiving a signal from the external input and Detective actuator Indoor unit communication output PCB, the same signal has not been received for...

  • Page 54: E: 22. Indoor Unit Capacity Error (Indoor Unit)

    2-5. E: 22. Indoor unit capacity error (Indoor unit) Operation indicator 2 time flash Timer indicator 2 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 22 →hen the total capacity of the indoor units does not Detective actuator Indoor unit main PCB match outdoor unit capacity while 3 minutes after power...

  • Page 55: E: 23. Combination Error (Outdoor Unit)

    2-6. E: 23. Combination error (Outdoor unit) Operation indicator 2 time flash Timer indicator 3 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 23 The outdoor unit receives the serial signal of applied Detective actuator Indoor unit refrigerant information from indoor unit.

  • Page 56: E: 26. Address Setting Error In Wired Remote Controller (Indoor Unit)

    2-7. E: 26. Address setting error in wired remote controller (Indoor unit) Operation indicator 2 time flash Timer indicator 6 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 26 →ired remote controller (2-wire) • →hen the address number set by auto setting and manual setting are mixed in one remote controller group Detective actuator...

  • Page 57: E: 29. Connected Unit Number Error (Indoor Unit)

    2-8. E: 29. Connected unit number error (Indoor unit) Operation indicator 2 time flash Timer indicator 9 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 29 →ired remote controller (2-wire) →hen the number of the connected indoor unit exceeds Detective actuator the limitation.

  • Page 58: E: 32. Indoor Unit Main Pcb Error (Indoor Unit)

    2-9. E: 32. Indoor unit main PCB error (Indoor unit) Operation indicator 3 time flash Timer indicator 2 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 32 →hen power is on and there is some below case. Detective actuator Indoor unit main PCB...

  • Page 59: E: 33. Indoor Unit Motor Electricity Consumption Detection Error (Indoor Unit)

    2-10. E: 33. Indoor unit motor electricity consumption detection error (Indoor unit) Operation indicator 3 time flash Timer indicator 3 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 33 Indoor unit motor electricity →hen the voltage value or the current value of the motor Detective actuator consumption detection go beyond the limits...

  • Page 60: E: 35. Manual Auto Button Error (Indoor Unit)

    2-11. E: 35. MANUAL AUTO button error (Indoor unit) Operation indicator 3 time flash Timer indicator 5 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 35 Indoor unit controller PCB →hen the MANUAL AUTO button becomes on for Detective actuator Indicator PCB consecutive 60 or more seconds.

  • Page 61: E: 39. Indoor Unit Power Supply Error For Fan Motor (Indoor Unit)

    2-12. E: 39. Indoor unit power supply error for fan motor (Indoor unit) Operation indicator 3 time flash Timer indicator 9 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 39 • →hen a momentary power cut off Detective actuator Indoor unit main PCB •...

  • Page 62: E: 3A. Indoor Unit Communication Circuit (Wired Remote Controller) Error

    2-13. E: 3A. Indoor unit communication circuit (wired remote controller) error Operation indicator 3 time flash Timer indicator 10 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 3A →ired remote controller (2-wire) Detect the communication error of microcomputer and Detective actuator communication PCB.

  • Page 63: E: 41. Room Temperature Sensor Error (Indoor Unit)

    2-14. E: 41. Room temperature sensor error (Indoor unit) Operation indicator 4 time flash Timer indicator 1 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 41 Indoor unit main PCB Room temperature thermistor is open or short is Detective actuator detected always.

  • Page 64: E: 42. Indoor Unit Heat Exchanger Sensor Error (Indoor Unit)

    2-15. E: 42. Indoor unit heat exchanger sensor error (Indoor unit) Operation indicator 4 time flash Timer indicator 2 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 42 Indoor unit main PCB →hen heat exchanger temperature thermistor open or Detective actuator Heat exchanger temperature short circuit is detected.

  • Page 65: E: 51. Indoor Unit Fan Motor Error (Indoor Unit)

    2-16. E: 51. Indoor unit fan motor error (Indoor unit) Operation indicator 5 time flash Timer indicator 1 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 51 main PCB →hen the actual rotation number of the indoor unit fan Detective actuator Indoor unit motor is below 1/3 of the target rotation number...

  • Page 66: E: 62. Outdoor Unit Main Pcb Error (Outdoor Unit)

    2-17. E: 62. Outdoor unit main PCB error (Outdoor unit) Operation indicator 6 time flash Timer indicator 2 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 62 Access to EEPROM failed due to some cause after Detective actuator Outdoor unit Main PCB...

  • Page 67: E: 63. Inverter Error (Outdoor Unit)

    2-18. E: 63. Inverter error (Outdoor unit) Operation indicator 6 time flash Timer indicator 3 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 63 Detective actuator Outdoor unit Main PCB Error information received from outdoor unit main PCB External cause Forecast of cause Power supply to main PCB wiring disconnection or open...

  • Page 68: E: 64. Pfc Circuit Error (Outdoor Unit)

    2-19. E: 64. PFC circuit error (Outdoor unit) Operation indicator 6 time flash Timer indicator 4 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 64 • →hen inverter input DC voltage is higher than 420V for over 3 seconds, the compressor stops. Detective actuator Outdoor unit Main PCB...

  • Page 69: E: 65. Trip Terminal L Error (Outdoor Unit)

    2-20. E: 65. Trip terminal L error (Outdoor unit) Operation indicator 6 time flash Timer indicator 5 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 65 →hen the signal from FO terminal of IPM is “L” (0 V) Detective actuator Outdoor unit Main PCB...

  • Page 70: E: 71. Discharge Thermistor Error (Outdoor Unit)

    2-21. E: 71. Discharge thermistor error (Outdoor unit) Operation indicator 7 time flash Timer indicator 1 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 71 Outdoor unit main PCB →hen discharge pipe temperature thermistor open or Detective actuator short circuit is detected at power on or while running the Discharge pipe temperature...

  • Page 71: E: 72. Compressor Thermistor Error (Outdoor Unit) (For 24Model)

    2-22. E: 72. Compressor thermistor error (Outdoor unit) (For 24model) Operation indicator 7 time flash Timer indicator 2 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 72 Outdoor unit main PCB →hen compressor temperature thermistor open or short Detective actuator circuit is detected at power on or while running the Compressor temperature thermistor...

  • Page 72: E: 73. Outdoor Unit Heat Exchanger Liquid Outlet Thermistor Error (Outdoor Unit)

    2-23. E: 73. Outdoor unit heat exchanger liquid outlet thermistor error (Outdoor unit) Operation indicator 7 time flash Timer indicator 3 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 73 Outdoor unit main PCB →hen heat exchanger temperature thermistor open or Detective actuator short circuit is detected at power on or while running the Heat exchanger temperature...

  • Page 73: E: 74. Outdoor Temperature Thermistor Error (Outdoor Unit)

    2-24. E: 74. Outdoor temperature thermistor error (Outdoor unit) Operation indicator 7 time flash Timer indicator 4 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 74 Outdoor unit main PCB →hen outdoor temperature thermistor open or short Detective actuator circuit is detected at power on or while running the Outdoor temperature thermistor...

  • Page 74: E: 84. Current Sensor Error (Outdoor Unit)

    2-25. E: 84. Current sensor error (Outdoor unit) Operation indicator 8 time flash Timer indicator 4 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 84 →hen input current sensor has detected 0 A, while inverter compressor is operating at higher than 56 rps, Detective actuator Outdoor unit main PCB...

  • Page 75: E: 86. High Pressure Switch Error (Outdoor Unit)

    2-26. E: 86. High pressure switch error (Outdoor unit) Operation indicator 8 time flash Timer indicator 6 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 86 Outdoor unit main PCB →hen pressure switch open is detected in 10 seconds Detective actuator after the power is turned on.

  • Page 76: E: 94. Trip Detection (Outdoor Unit)

    2-27. E: 94. Trip detection (Outdoor unit) Operation indicator 9 time flash Timer indicator 4 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 94 Main PCB Protection stop by over-current generation after inverter compressor start processing completed generated consecutively 10 times.

  • Page 77: E: 95. Compressor Motor Control Error (Outdoor Unit)

    2-28. E: 95. Compressor motor control error (Outdoor unit) Operation indicator 9 time flash Timer indicator 5 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 95 Main PCB 1. →hen running the compressor, if the detected rotor location is out of phase with actual rotor location more than 105°, the compressor stops.

  • Page 78: E: 97. Outdoor Unit Fan Motor Error (Outdoor Unit)

    2-29. E: 97. Outdoor unit fan motor error (Outdoor unit) Operation indicator 9 time flash Timer indicator 7 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 97 Main PCB 1. →hen outdoor fan rotation speed is less than 100 rpm in 20 seconds after fan motor starts, fan motor stops.

  • Page 79: E: 99. 4-Way Valve Error (Outdoor Unit)

    2-30. E: 99. 4-way valve error (Outdoor unit) Operation indicator 9 time flash Timer indicator 9 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 99 Indoor unit main PCB →hen the indoor heat exchanger temperature is compared with the room temperature, and either Heat exchanger temperature following condition is detected continuously two times,...
  • Page 80 Check point 3. Check the solenoid coil and 4-way valve NOTE: Refer solenoid coil and 4-way valve in "Service parts information" on page 03-48. • Solenoid coil Remove P60 from PCB and check the resistance value of coil. Resistance value is 2.780 kΩ (at 20 °C).

  • Page 81: E: A1. Discharge Temperature Error (Outdoor Unit)

    2-31. E: A1. Discharge temperature error (Outdoor unit) Operation indicator 10 time flash Timer indicator 1 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: A1 Outdoor unit main PCB 1. →hen the discharge temperature becomes higher than 110 °C, the compressor stops.
  • Page 82 Check point 6. Replace main PCB If check point 1 to 5 do not improve the symptom, replace the main PCB. - (03-38) - 2-31. E: A1. Discharge temperature error (Outdoor unit) 2. Troubleshooting with error code...

  • Page 83: E: A3. Compressor Temperature Error (Outdoor Unit)

    2-32. E: A3. Compressor temperature error (Outdoor unit) Operation indicator 10 time flash Timer indicator 3 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: A3 Protection stop by compressor temperature ≥ 108 °C Detective actuator Compressor temperature thermistor during compressor operation generated 2 times within 24 hours.
  • Page 84 Check point 5. Check the refrigerant amount Check the refrigerant leakage. - (03-40) - 2-32. E: A3. Compressor temperature error (Outdoor unit) 2. Troubleshooting with error code...

  • Page 85: Troubleshooting Without Error Code

    3. Troubleshooting without error code 3-1. Indoor unit—No power Power supply failure Forecast of cause External cause Electrical components defective Check point 1. Check installation condition • Isn’t the breaker down? • Check loose or removed connection cable. -> If abnormal condition is found, correct it by referring to the installation manual or the “DESIGN & TECHNICAL MANUAL”.

  • Page 86: Outdoor Unit-No Power

    3-2. Outdoor unit—No power Power supply failure Forecast of cause External cause Electrical components defective Check point 1. Check installation condition • Is the circuit breaker on or off? • Check loose or removed connection cable. If abnormal condition is found, correct it by referring to the installation manual or the “DESIGN & TECHNICAL MANUAL”.

  • Page 87: No Operation (Power Is On)

    3-3. No operation (Power is on) Setting/ Connection failure Forecast of cause External cause Electrical components defective Check point 1. Check indoor and outdoor installation condition • Indoor unit: – Check incorrect wiring between indoor unit and remote controller. – Check if there is an open cable connection.

  • Page 88: No Cooling/No Heating

    3-4. No cooling/No heating Indoor unit error Outdoor unit error Forecast of cause Effect by surrounding environment Connection pipe/Connection wire failure Refrigeration cycle failure Check point 1. Check Indoor unit • Does Indoor unit fan run in the HIGH mode? •...
  • Page 89 NOTES: • Strainer normally does not have temperature difference between inlet and outlet as shown be- low. Pipe (In) Pipe (Out) • If there is a difference like shown below, there is a possibility of inside clogged. In this case, re- place the strainer.

  • Page 90: Abnormal Noise

    3-5. Abnormal noise Abnormal installation (indoor unit/outdoor unit) Forecast of cause Fan failure (indoor unit/outdoor unit) Compressor failure (outdoor) Diagnosis method when abnormal noise is occurred Abnormal noise is coming from Outdoor Abnormal noise is coming from Indoor unit. unit. (Check and correct followings) (Check and correct followings) •...

  • Page 91: Ater Leaking

    3-6. Water leaking Erroneous installation Forecast of cause Drain hose failure Diagnosis method when water is spitting Diagnosis method when water leak occurs • Is main unit installed in stable condi- tion? Is the filter clogged? • Is main unit broken or deformed at the time of transportation or maintenance? MPa MPa •...

  • Page 92: Service Parts Information

    4. Service parts information 4-1. Compressor Diagnosis method of compressor (If outdoor unit LED displays error, refer to troubleshooting) Does not start up Stops soon after starting up Abnormal noise Check if vibration noise by Is there open or loose con- Is there open or loose con- loose bolt or contact noise of nection cable?

  • Page 93: Inverter Compressor

    4-2. Inverter compressor Check point 1. Check the terminal connection. • Check the following terminal connections of the compressor. (Loosening or incorrect wiring.) – R (U): Red – S (V): →hite – C (W): Black S (V) C (W) Main PCB R (U) •...
  • Page 94 Check point 3. Replace the Inverter PCB. If check point 1 to 2 do not improve the symptom, replace the Inverter PCB. - (03-50) - 4-2. Inverter compressor 4. Service parts information...

  • Page 95: Outdoor Unit Electronic Expansion Valve (Eev)

    4-3. Outdoor unit Electronic Expansion Valve (EEV) Check point 1. Check connections Check connection of connector. (Loose connector or open cable) NOTE: For details of wiring diagram, refer to "→iring diagrams" in Chapter 2. TECHNICAL DATA AND PARTS LIST on page 02-18. Check point 2.
  • Page 96 Check point 6. Check strainer • Strainer normally does not have temperature difference between inlet and outlet as shown be- low. Pipe (In) Pipe (Out) • If there is a difference like shown below, there is a possibility of inside clogged. In this case, replace the strainer.

  • Page 97: Indoor Unit Fan Motor

    4-4. Indoor unit fan motor Check point 1. Check rotation of fan Rotate the fan by hand when operation is off. (Check if fan is caught, dropped off or locked motor) If fan or bearing is abnormal, replace it. Check point 2. Check resistance of indoor fan motor Refer to below.

  • Page 98: Outdoor Unit Fan Motor

    4-5. Outdoor unit fan motor Check point 1. Check rotation of fan Rotate the fan by hand when operation is off. (Check if fan is caught, dropped off or locked motor) If fan or bearing is abnormal, replace it. Check point 2. Check resistance of outdoor fan motor Refer to below.

  • Page 99: Thermistor Resistance Values

    5. Thermistor resistance values 5-1. Indoor unit ¢ Room temperature thermistor Temperature (°C) Resistance (kΩ) Voltage (V) -10.0 58.25 0.73 -5.0 44.03 0.93 33.62 1.15 25.93 1.39 10.0 20.18 1.66 15.0 15.84 1.94 20.0 12.54 2.22 25.0 10.00 2.50 30.0 8.04 2.77 35.0...

  • Page 100: Outdoor Unit

    5-2. Outdoor unit ¢ Discharge temperature thermistor Temperature (°C) Resistance (kΩ) Voltage (V) -30.0 1,013.11 0.06 -25.0 729.09 0.09 -20.0 531.56 0.12 -15.0 392.31 0.16 -10.0 292.91 0.21 -5.0 221.09 0.28 168.60 0.36 129.84 0.46 10.0 100.91 0.57 15.0 79.12 0.71 20.0 62.55...
  • Page 101 ¢ Compressor temperature thermistor  Model: AOHG24KMTA Temperature (°C) Resistance (kΩ) Voltage (V) -30.0 1,013.11 0.06 -25.0 729.09 0.09 -20.0 531.56 0.12 -15.0 392.31 0.16 -10.0 292.91 0.21 -5.0 221.09 0.28 168.60 0.36 129.84 0.46 10.0 100.91 0.57 15.0 79.12 0.71 20.0 62.55...
  • Page 102 ¢ Heat exchanger temperature thermistor Temperature (°C) Resistance (kΩ) Voltage (V) -30.0 95.57 0.24 -25.0 68.89 0.32 -20.0 50.31 0.43 -15.0 37.19 0.57 -10.0 27.81 0.73 -5.0 21.02 0.92 16.05 1.14 12.38 1.39 10.0 9.63 1.65 15.0 7.56 1.93 20.0 5.98 2.21 25.0...
  • Page 103 4. CONTROL AND FUNCTIONS 2022.03.25 SR_CH04_AS070EG_01...
  • Page 104 CONTENTS 4. CONTROL AND FUNCTIONS 1. Rotation number control of compressor...........04-1 1-1. Cooling operation ......................04-1 1-2. Heating operation ......................04-3 1-3. Dry operation ........................04-3 1-4. Rotation number of compressor at normal start-up ............04-4 1-5. Compressor frequency limitation by outdoor temperature ..........04-5 2.
  • Page 105 CONTENTS (continued) 8-8. High temperature and high pressure release control (heating mode) ......04-29...

  • Page 107: Rotation Number Control Of Compressor

    1. Rotation number control of compressor 1-1. Cooling operation A sensor (room temperature thermistor) built in the indoor unit body will usually perceive difference or variation between a set temperature and present room temperature, and controls the operation rotation number of the compressor. •...
  • Page 108 • Limit of maximum speed based on outdoor temperature Outdoor temperature rises Outdoor temperature drops 36°C A zone 34°C 32°C B zone 30°C 21°C C zone 19°C 12°C D zone 10°C 2°C E zone 0°C F zone Unit: rps Outdoor Indoor unit fan mode Model name temperature...

  • Page 109: Heating Operation

    1-2. Heating operation A sensor (room temperature thermistor) built in indoor unit body will usually perceive difference or variation between setting temperature and present room temperature, and controls operation rota- tion number of compressor. • If the room temperature is 6.0 °C lower than a set temperature, the operation rotation number of compressor will attain to maximum performance.

  • Page 110: Rotation Number Of Compressor At Normal Start-Up

    1-4. Rotation number of compressor at normal start-up ¢ Model: AOHG18KMTA Rotation number of compressor soon after starting is controlled as below. Rotation number V Rotation number IV Rotation number III Rotation number II Rotation number I Time 1 Time 2 Time 3 Time 4 Time 5...

  • Page 111: Compressor Frequency Limitation By Outdoor Temperature

    1-5. Compressor frequency limitation by outdoor temperature The minimum rotation number of compressor is limited by outdoor temperature as below. • Cooling/Dry mode F zone 38°C E zone 19°C D zone 10°C C zone 0°C B zone -10°C A zone Limitation of compressor Model name Outdoor temperature zone...
  • Page 112 • Heating mode F zone 19°C E zone 5°C D zone 0°C C zone -15°C B zone -25°C A zone Limitation of compressor Model name Outdoor temperature zone frequency A zone 25 rps B zone 25 rps C zone 17 rps AOHG18KMTA D zone 10 rps...

  • Page 113: Auto Changeover Operation

    2. Auto changeover operation →hen the air conditioner is set to AUTO mode by remote controller, operation starts in the optimum mode from among heating, cooling, dry and monitoring modes. During operation, the optimum mode is automatically switched in accordance with temperature changes. The temperature can be set be- tween 18°C and 30°C in 1.0°C steps.
  • Page 114 Operation flow chart Start Ts: Setting temperarure Monitor mode Room temp. > Ts+2°C? Room temp. < Ts-2°C? Middle zone Auto change over is second or more? Operation mode before the monitor mode is cooling mode? Operation mode of Heating operation Cooling operation outdoor unit: Cooling? Thermostat remains...

  • Page 115: Fan Control

    3. Fan control Tr: Room temperature Ts: Setting temperature 3-1. Indoor fan control ¢ Fan speed Indoor fan speed is defined as below. Speed (rpm) Operation mode Fan mode ASHG18KMTE ASHG24KMTE PO→ERFUL 1,400 1,570 HIGH 1,300 1,470 MED+ 1,230 1,230 1,130 1,130 Heating...
  • Page 116 ¢ Dry operation During dry operation, fan speed setting can not be changed as shown in “Fan speed” above. ¢ Heating operation Switch the airflow AUTO, and the indoor fan motor will run according to a room temperature, as be- low.
  • Page 117 • Powerful operation Indoor heat exchanger temperature rises Indoor heat exchanger POWERFUL temperature drops 42°C 37°C HIGH 39°C 34°C 37°C 32°C Cool air prevention 30°C 28°C S-LOW 7 minutes later: Indoor heat exchanger temperature rises Indoor heat exchanger POWERFUL temperature drops 42°C 37°C HIGH...

  • Page 118: Outdoor Fan Control

    3-2. Outdoor fan control ¢ Outdoor fan motor This outdoor unit has a DC fan motor. (Control method is different between AC and DC motors.) ¢ Fan speed  Model: AOHG18KMTA Fan speed is defined by outdoor temperature and compressor frequency. •...
  • Page 119  Model: AOHG24KMTA Fan speed is defined by outdoor temperature and compressor frequency. • Outside air temperature zone selection Outside air Outside air temperature rises temperature drops Y zone 21°C 19°C Z zone 12°C 10°C F zone 2°C 0°C G zone Unit: rpm Cooling Cooling or dry at low outdoor temp.

  • Page 120: Louver Control

    4. Louver control 4-1. Vertical airflow direction louver control Each time the button is pressed, the air direction range will change as below: Side view • Remote controller display is not changed. • Vertical airflow direction is set automatically as shown, in accordance with the type of operation selected.

  • Page 121: Timer Operation Control

    5. Timer operation control 5-1. Wireless remote control On/Off timer Program timer Sleep timer Weekly timer ○ ○ ○ ○  On/Off timer • Off timer: →hen the clock reaches the set timer, the air conditioner will be turned off. Operation mode Stop mode Set time of timer...
  • Page 122  Sleep timer If the sleep timer is set, the room temperature is monitored and the operation is stopped auto- matically. If the operation mode or the set temperature is change after the sleep timer is set, the operation is continued according to the changed setting of the sleep timer from that time on. •...

  • Page 123: Ired Remote Control

    5-2. Wired remote control Temperature set On/Off timer Program timer Sleep timer Weekly timer back timer ○ ○ ○ ○ ○ ¢ On/Off timer • Off timer: →hen the clock reaches the set timer, the air conditioner will be turned off. Operation mode Stop mode Set time of timer...
  • Page 124 ¢ Sleep timer If the sleep timer is set, the room temperature is monitored and the operation is stopped auto- matically. If the operation mode or the set temperature is change after the sleep timer is set, the operation is continued according to the changed setting of the sleep timer from that time on. •...
  • Page 125 ¢ Temperature set back timer • The SET BACK timer only changes the set temperature for 7 days, it cannot be used to start or stop air conditioner operation. • The SET BACK timer can be set to operate up to two times per day but only one temperature setting can be used.

  • Page 126: Defrost Operation Control

    6. Defrost operation control Tn: Outdoor unit heat exchanger temperature Ta: Outdoor temperature Tn10: Temperature at 10 minutes after compressor start Tnb: Temperature before 5 minutes Triggering condition • The defrost operation starts when outdoor unit heat exchanger temperature sensor detects the temperature lower than the values shown below.

  • Page 127: Defrost Operation In Heating Operation Stopped

    6-1. Defrost operation in heating operation stopped If the outdoor unit is frosted when stopping the heating operation, it stops after performing the auto- matic defrosting operation. In this time, if the indoor unit operation lamp flashes slowly (6 sec on/2 sec off), the outdoor unit al- low the heat exchanger to defrost, and then stop.

  • Page 128: Various Control

    7. Various control 7-1. Auto restart →hen the power was interrupted by a power failure etc. during operation, the operation contents at that time are memorized and when the power is recovered, operation is automatically started with the memorized operation contents. Operation contents memorized when the power is interrupted Operation mode Setting temperature...

  • Page 129: Forced Cooling Operation

    7-3. Forced cooling operation The outdoor unit may not operate depending on the room temperature. →hen FORCED COOLING OPERATION button is pressed more than 10 seconds, forced cooling operation starts as shown in the table below. Operation mode Cooling Fan mode HIGH Timer mode Continuous (no timer setting available)

  • Page 130: Po→Erful Operation

    7-6. POWERFUL operation The PO→ERFUL operation starts by pressing PO→ERFUL button on the remote controller. The indoor unit and outdoor unit operate at maximum power as shown in the table below. Compressor frequency Maximum Fan mode PO→ERFUL Cooling Vertical airflow direction louver setting Heating Release condition:...

  • Page 131: External Electrical Heater Control

    7-9. External electrical heater control The external electrical heater is operated as below. When the room Ts: Setting temperature temperature rises Heater : Off Ts -1°C Ts -3°C Heater : On Ts -10°C Ts -12°C Heater : Off When the room temperature drops NOTES: •...

  • Page 132: 4-Way Valve Control

    7-12. 4-way valve control • If heating mode is selected at the compressor start, 4-way valve is energized for heating. • →hen the air conditioner is switched between cooling and heating mode, compressor is stopped, and the 4-way valve is switched when the 3 minutes passes and the compressor is started. 4-way valve switching Heating mode...

  • Page 133: Various Protections

    8. Various protections 8-1. Discharge gas temperature over-rise prevention control The discharge gas temperature sensor (discharge thermistor: outdoor unit side) detects the dis- charge gas temperature. • →hen the discharge temperature becomes higher than the trigger condition, the rotation number of compressor is decreased as the table below, and it continues to decrease until the discharge tem- perature becomes lower than the trigger condition.

  • Page 134: Current Release Control

    8-3. Current release control The rotation number of compressor is controlled so that the outdoor unit input current does not ex- ceeds current limit value set according to the outdoor temperature. The rotation number of compressor returns according to the operation mode, when the current be- comes lower than the release value.

  • Page 135: High Pressure Protection

    8-6. High pressure protection Pressure switch: Off (Open: Higher than 4.2 MPa) Trigger condition Compressor stop Pressure switch: On (Close: Lower than 3.2 MPa) Release condition (3 minutes after compressor stop) Compressor restart 8-7. Low outdoor temperature protection →hen the outdoor temperature sensor detects lower than the trigger condition below, the compres- sor is stopped.
  • Page 136 - (04-30) - 8-8. High temperature and high pressure release control (heating mode) 8. Various protections...
  • Page 137 5. FILED WORKING 2022.03.25 SR_CH05_AS070EG_01...
  • Page 138 CONTENTS 5. FILED WORKING 1. Function settings ..................05-1 1-1. Function settings by using remote controller ..............05-1 1-2. Custom code setting for wireless remote controller ............05-7 2. External input and output................05-8 2-1. External input........................05-9 2-2. External output ......................05-12 2-3. Setting of external input and output ................05-14 2-4.

  • Page 139: Function Settings

    1. Function settings To adjust the functions of this product according to the installation environment, various types of function settings are available. NOTE: Incorrect settings can cause a product malfunction. 1-1. Function settings by using remote controller Some function settings can be changed on the remote controller. After confirming the setting proce- dure and the content of each function setting, select appropriate functions for your installation envi- ronment.
  • Page 140 NOTES: • The air conditioner custom code is set to prior to shipment. • If you do not know the air conditioner custom code setting, try each of the custom codes ( ) until you find the code that operates the air conditioner. ¢...
  • Page 141 2) Room temperature control for indoor unit sensor Depending on the installed environment, correction of the room temperature sensor may be re- quired. Select the appropriate control setting according to the installed environment. The temperature of the room temperature sensor is corrected as follows: Corrected temp.
  • Page 142 3) Room temperature control for wired remote controller sensor Depending on the installed environment, correction of the wire remote temperature sensor may be required. Select the appropriate control setting according to the installed environment. To change this setting, set Function 42 to Both “01”. Ensure that the Thermo Sensor icon is displayed on the remote controller screen.
  • Page 143 6) Remote controller custom code (Only for wireless remote controller) The indoor unit custom code can be changed. Select the appropriate custom code. Function number Setting value Setting description Factory setting ♦ 7) External input control "Operation/Stop" mode or "Forced stop" mode can be selected. Function number Setting value Setting description...
  • Page 144 10) Switching functions for external output terminal Functions of the external output terminal can be switched. For details, refer to “External input and output”. Function number Setting value Setting description Factory setting Operation status ♦ 01—08 (Setting prohibited) Error status Indoor unit fan operation status (Setting prohibited) - (05-6) -...

  • Page 145: Custom Code Setting For Wireless Remote Controller

    1-2. Custom code setting for wireless remote controller To interconnect the air conditioner and the wireless remote controller, assignment of the custom code for the wireless remote controller is required. NOTE: Air conditioner cannot receive a signal if the air conditioner has not been set for the custom code.

  • Page 146: External Input And Output

    2. External input and output External input and output PCB Indoor unit PCB CN47 (Ext. out) CN65 (Ext. in/out PCB) CN46 (Ext. in) SW301 SW302 Rotary switch CN314 CN313 CN312 CN311 CN310 CN308 Connecting point Input/Output Function Input select Input signal Operation/Stop CN46 Input...

  • Page 147: External Input

    2-1. External input →ith using external input function, some functions on this product can be controlled from an external device. • “Operation/Stop” mode or "Forced stop" mode can be selected with function setting of indoor unit. • A twisted pair cable should be used. Maximum length of cable is 150 m. •...
  • Page 148 ¢ External input and output PCB The indoor unit Operation/Stop can be set by using the input connector on the PCB. • Input select Use either one of these types of connectors according to the application. (Both types of connec- tors cannot be used simultaneously.) –...
  • Page 149 ¢ Input signal type • Indoor unit Input signal type is only "Edge". Edge • External input and output PCB The input signal type can be selected. Signal type (edge or pulse) can be switched by the DIP switch 2 (S→302) on the External input and output PCB.

  • Page 150: External Output

    2-2. External output Use an external output cable with appropriate external dimension, depending on the number of ca- bles to be installed. ¢ Indoor unit • A twisted pair cable should be used. Maximum length of cable is 25 m. •...
  • Page 151 ¢ External input and output PCB • A twisted pair cable should be used. Maximum length of cable is 25 m. • Output voltage: High DC 12 V±2 V, Low 0 V. • Permissible current: 50 mA • For details, refer to "Setting of external input and output"...

  • Page 152: Setting Of External Input And Output

    2-3. Setting of external input and output • Indoor unit Input Connection point Function setting number 46 Function Operation/Stop mode 1 (R.C. enabled) (Setting prohibited) CN46 Forced stop mode Operation/Stop mode 2 (R.C. disabled) Output Connection point Function setting number 60 Function Operation status 01 to 08...

  • Page 153: Details Of Control Input Function

    2-4. Details of control input function ¢ Operation/Stop mode 1 • In the case of "Edge" input External input and output PCB Function External input Input signal Command setting Rotary SW302 switch Operation — Input of indoor unit CN46 Stop 46-00 Operation External input and...
  • Page 154 ¢ Forced stop • In the case of "Edge" input External input and output PCB Function External input Input signal Command setting Rotary SW302 switch Forced stop (R.C. disabled) — Input of indoor unit CN46 Normal (R.C. enabled) 46-02 Forced stop (R.C.
  • Page 155 NOTES: • →hen the forced stop is triggered, indoor unit stops and Operation/Stop operation by the remote controller is restricted. • →hen forced stop function is used with forming a remote controller group, connect the same equipment to each indoor unit within the group. ¢...
  • Page 156 NOTE: →hen “Operation/Stop” mode 2 function is used with forming a remote controller group, connect the same equipment to each indoor unit within the group. ¢ Forced thermostat off External input and output External input Input signal Command Rotary switch Thermostat off External input and 2, B, C...

  • Page 157: Details Of Control Output Function

    2-5. Details of control output function ¢ Operation status External input and Function output PCB External output Output signal Status setting Rotary switch Operation 60-00 1, 2 Output of indoor unit CN47 Stop Operation External input and — 1, B, C CN310 output PCB Stop...
  • Page 158 ¢ Indoor unit fan operation status External input and Function output PCB External output Output signal Status setting Rotary switch Fan run 60-10 Output of indoor unit CN47 Fan stop Fan run External input and — 2, B CN311 output PCB Fan stop Fan run External input and...

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