Fujitsu ASYG07KMCE Service Manual
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Fujitsu ASYG07KMCE Service Manual

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AIR CONDITIONER
Wall mounted type
INDOOR
ASYG07KMCE
ASYG09KMCE
ASYG12KMCE
ASYG14KMCE
OUTDOOR
AOYG07KMCC
AOYG09KMCC
AOYG12KMCC
SERVICE MANUAL
AOYG14KMCC
SR_AS061EF_02
2022.02.03
Table of Contents
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Summary of Contents for Fujitsu ASYG07KMCE

  • Page 1 AIR CONDITIONER Wall mounted type SERVICE MANUAL INDOOR ASYG07KMCE ASYG09KMCE ASYG12KMCE ASYG14KMCE OUTDOOR AOYG07KMCC AOYG14KMCC AOYG09KMCC AOYG12KMCC SR_AS061EF_02 2022.02.03...
  • 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 2022.02.03 SR_CH01_AS061EF_01...
  • Page 6 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 1. Specifications 1-1. Indoor unit Wall mounted Type Inverter heat pump Model name ASYG07KMCE ASYG09KMCE ASYG12KMCE ASYG14KMCE Power supply 230 V ~ 50 Hz Available voltage range 198—264 V 2.00 2.50 3.40 4.20 Rated Btu/h 6,800 8,500 11,600 14,300 Cooling 0.9—3.0...
  • Page 8 Wall mounted Type Inverter heat pump Model name ASYG07KMCE ASYG09KMCE ASYG12KMCE ASYG14KMCE NOTES: • Specifications are based on the following conditions: – Cooling: Indoor temperature of 27 °CDB/19 °CWB, and outdoor temperature of 35 °CDB/24 °CWB. – Heating: Indoor temperature of 20 °CDB/15 °CWB, and outdoor temperature of 7 °CDB/6 °CWB.
  • Page 9 Specifications for Lot10 Model name ASYG07KMCE ASYG09KMCE ASYG12KMCE ASYG14KMCE Cooling Energy efficiency class Heating (Average) Cooling 2.0 (35 °C) 2.5 (35 °C) 3.4 (35 °C) 4.2 (35 °C) Pdesign Heating (Average) 2.3 (-10 °C) 2.4 (-10 °C) 2.5 (-10 °C) 4.0 (-10 °C)
  • Page 10 1-2. Outdoor unit Type Inverter heat pump Model name AOYG07KMCC AOYG09KMCC AOYG12KMCC AOYG14KMCC Power supply 230 V ~ 50 Hz Available voltage range 198—264 V Starting current Cooling 1,650 1,650 1,700 1,680 Airflow rate Heating 1,450 1,450 1,470 1,580 Type × Q'ty Propeller fan ×...
  • Page 11 2. Dimensions 2-1. Indoor unit ¢ Models: ASYG07KMCE, ASYG09KMCE, ASYG12KMCE, and ASYG14KMCE Unit: mm (834) 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 70 or more Wall hook bracket 107 or more 183 or more Outline of the indoor unit 1,500 or more The flare connection part should be installed outdoors.
  • Page 13 2-2. Outdoor unit ¢ Models: AOYG07KMCC, AOYG09KMCC, and AOYG12KMCC 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.
  • Page 14 ¢ Model: AOYG14KMCC 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 2022.02.03 SR_CH02_AS061EF_01...
  • Page 16 CONTENTS 2. TECHNICAL DATA AND PARTS LIST 1. Precautions....................02-1 2. Indoor unit parts list..................02-2 2-1. Models: ASYG07KMCE, ASYG09KMCE, ASYG12KMCE, and ASYG14KMCE ....02-2 3. Outdoor unit parts list.................02-6 3-1. Models: AOYG07KMCC, AOYG09KMCC, and AOYG12KMCC ........02-6 3-2. Model: AOYG14KMCC....................02-10 4. Accessories ....................02-14 4-1.
  • Page 17 • 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 2. Indoor unit parts list 2-1. Models: ASYG07KMCE, ASYG09KMCE, ASYG12KMCE, and ASYG14KMCE ¢ Exterior parts - (02-2) - 2-1. Models: ASYG07KMCE, ASYG09KMCE, ASYG12KMCE, and ASYG14KMCE 2. Indoor unit parts list...
  • Page 19 Under cover L ♦ 9316177017 Drain cap ♦ 9316904002 Drain hose assy ♦ 9318912005 Remote controller holder ♦ 9352446085 Remote controller ♦ — Step motor holder — - (02-3) - 2-1. Models: ASYG07KMCE, ASYG09KMCE, ASYG12KMCE, and ASYG14KMCE 2. Indoor unit parts list...
  • Page 20 ¢ Base, evaporator, and control - (02-4) - 2-1. Models: ASYG07KMCE, ASYG09KMCE, ASYG12KMCE, and ASYG14KMCE 2. Indoor unit parts list...
  • Page 21 Control box — — PCB holder A — — Control cover — — Display case assy — — Motor case — — Motor cover — - (02-5) - 2-1. Models: ASYG07KMCE, ASYG09KMCE, ASYG12KMCE, and ASYG14KMCE 2. Indoor unit parts list...
  • Page 22 3. Outdoor unit parts list 3-1. Models: AOYG07KMCC, AOYG09KMCC, and AOYG12KMCC ¢ Exterior parts and chassis - (02-6) - 3-1. Models: AOYG07KMCC, AOYG09KMCC, and AOYG12KMCC 3. Outdoor unit parts list...
  • Page 23 Item no. Part no. Part name Service part 9322556165 Top panel assy ♦ 9709687079 Main PCB (for 07 model) ♦ 9709687093 Main PCB (for 09 model) ♦ 9709687116 Main PCB (for 12 model) ♦ 9900727062 Thermistor assy ♦ 9900565053 Thermistor assy (outdoor temp) ♦...
  • Page 24 ¢ Compressor - (02-8) - 3-1. Models: AOYG07KMCC, AOYG09KMCC, and AOYG12KMCC 3. Outdoor unit parts list...
  • Page 25 Item no. Part no. Part name Service part 9322423009 Compressor assy (for 07-09 model) ♦ 9322425003 Compressor assy (for 12 model) ♦ 9322392008 4-way valve assy ♦ 9970110153 Solenoid ♦ 9970222009 Expansion valve coil ♦ 9322403001 Pulse motor valve assy ♦...
  • Page 26 3-2. Model: AOYG14KMCC ¢ Exterior parts and Chassis - (02-10) - 3-2. Model: AOYG14KMCC 3. Outdoor unit parts list...
  • Page 27 Item no. Part no. Part name Service part 9322556028 Top panel assy ♦ 9322811011 Protective net assy ♦ 9322552020 Cabinet right assy ♦ 9322570000 Switch cover assy ♦ 9709687130 Main PCB ♦ 9900727062 Thermistor assy ♦ 9900850012 Thermistor (Outdoor temp.) ♦...
  • Page 28 ¢ Compressor - (02-12) - 3-2. Model: AOYG14KMCC 3. Outdoor unit parts list...
  • Page 29 Item no. Part no. Part name Service part 9322427007 Compressor assy ♦ 9322444011 4-way valve assy ♦ 9970110160 Solenoid ♦ 9970095122 Expansion valve coil ♦ 9322463005 Pulse motor valve assy ♦ 9322474001 2-way valve assy ♦ 9322475008 3-way valve assy ♦...
  • Page 30 4. Accessories 4-1. Indoor unit ¢ Models: ASYG07KMCE, ASYG09KMCE, ASYG12KMCE, and ASYG14KMCE 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 Wall hook bracket...
  • Page 31 5. Optional parts 5-1. Controllers Exterior Part name Model name Summary Easy finger touch operation with LCD panel. Backlit LCD enables easy operation in a dark room. Wired remote UTY-RNRYZ* Wire type: Non-polar 2-wire controller Optional communication kit is necessary for installation. High visibility and easy operation.
  • Page 32 5-2. Others Exterior Part name Model name Summary Air cleaning filter can be mounted to Air cleaning filter UTR-FA16-5 the indoor unit. Use to connect with various peripheral External devices and air conditioner PCB. UTY-XWZX connect kit Required when external device is External connected.
  • Page 33 Exterior Part name Model name Summary Air conditioner switching can be External switch UTY-TERX controlled by connecting other external controller sensor switches. - (02-17) - 5-2. Others 5. Optional parts...
  • Page 34 6. Refrigerant system diagrams 6-1. Models: AOYG07KMCC, AOYG09KMCC, and AOYG12KMCC Heat exchanger 3-way (INDOOR) valve 2-way Muffler valve 4-way valve Strainer Expansion valve Heat exchanger Strainer (OUTDOOR) Cooling Heating : Thermistor (Discharge temperature) : Thermistor (Outdoor temperature) : Thermistor (Heat exchanger out temperature) : Thermistor (Room temperature) : Thermistor (Pipe temperature) - (02-18) -...
  • Page 35 6-2. Model: AOYG14KMCC Heat exchanger 3-way (INDOOR) valve 2-way Muffler valve Muffler 4-way valve Strainer Expansion valve Heat exchanger Strainer (OUTDOOR) Cooling Heating : Thermistor (Discharge temperature) : Thermistor (Outdoor temperature) : Thermistor (Heat exchanger out temperature) : Thermistor (Room temperature) : Thermistor (Pipe temperature) - (02-19) - 6-2.
  • Page 36 7. Wiring diagrams 7-1. Indoor unit ¢ Models: ASYG07KMCE, ASYG09KMCE, ASYG12KMCE, and ASYG14KMCE - (02-20) - 7-1. Indoor unit 7. Wiring diagrams...
  • Page 37 7-2. Outdoor unit ¢ Models: AOYG07KMCC, AOYG09KMCC, AOYG12KMCC, and AOYG14KMCC - (02-21) - 7-2. Outdoor unit 7. Wiring diagrams...
  • Page 38 8. PC board diagrams 8-1. Models: ASYG07KMCE, ASYG09KMCE, ASYG12KMCE, and ASYG14KMCE CONTROL UNIT 07 model : EZ-0210FHSE 09 model : EZ-0216HSE 12 model : EZ-0217HSE 14 model : EZ-0218HSE OPTION (2-WIRE REMOTE CONTROLLER UNIT) TERMINAL JXO-T3102-3P-B UTY-TWRXZ2 AWG22 AWG22 BLACK...
  • Page 39 8-2. Models: AOYG07KMCC, AOYG09KMCC, AOYG12KMCC, and AOYG14KMCC INVERTER ASSEMBLY 07, 09, 12 models : EZ-0207HUE 14 model : EZ-0208HUE Compressor Winding Resistance EMI FILTER REACTOR F8CT ( 07, 09, 12 ) 13mH 8A TR-28-16-13 3 TURNS 2.180 UL3271 AWG16 COMPRESSOR W400 UL3271 AWG16 ( 14 )
  • Page 40 - (02-24) - 8-2. Models: AOYG07KMCC, AOYG09KMCC, AOYG12KMCC, and AOYG14KMCC 8. PC board diagrams...
  • Page 41 3. TROUBLESHOOTING 2022.02.03 SR_CH03_AS061EF_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 ...............03-3 2-1. E: 11. Serial communication error (Serial reverse transfer error) (Outdoor unit).....03-3 2-2.
  • Page 43 CONTENTS (continued) 4-5. Outdoor unit fan motor ....................03-49 5. Thermistor resistance values..............03-50 5-1. Indoor unit ........................03-50 5-2. Outdoor unit........................03-51...
  • Page 45 1. Error code When 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 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 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 When the indoor unit cannot receive the serial signal from outdoor unit more than 2 minutes after power on, Detective actuator...
  • Page 48 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 49 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 Indoor unit When the outdoor unit cannot properly receive the serial Detective actuator Fan motor signal from indoor unit for 10 seconds or more.
  • Page 50 Check point 4. Check serial signal (Forward 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 51 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 When the indoor unit cannot receive the signal from Detective actuator Wired remote controller more than 1 minute during Wired remote control...
  • Page 52 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 53 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 When 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 54 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 55 2-7. 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 When power is on and there is some below case. Detective actuator Indoor unit main PCB...
  • Page 56 2-8. 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 When the MANUAL AUTO button becomes on for Detective actuator Indicator PCB consecutive 60 or more seconds.
  • Page 57 2-9. 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 58 2-10. 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 When heat exchanger temperature thermistor open or Detective actuator Heat exchanger temperature short circuit is detected.
  • Page 59 2-11. 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 When the actual rotation number of the indoor unit fan Detective actuator Indoor unit motor is below 1/3 of the target rotation number...
  • Page 60 2-12. E: 5U. Indoor unit error Operation indicator 5 time flash Timer indicator 15 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 5U Check point. Check following error code. E: 11. Serial communication error (Serial reverse transfer error) (Outdoor unit) E: 11.
  • Page 61 2-13. 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 62 2-14. 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 • When inverter input DC voltage is higher than 415 V for over 3 seconds, the compressor stops. Detective actuator Outdoor unit Main PCB...
  • Page 63 2-15. E: 65. IPM error (Outdoor unit) Operation indicator 6 time flash Timer indicator 5 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 65 Main PCB 1. When more than normal operating current to IPM in main PCB flows, the compressor stops.
  • Page 64 Check point 4. Check compressor Check compressor. (Refer to inverter compressor in "Service parts information".) ↓ Check point 5. Replace main PCB If Check point 1 to 4 do not improve the symptom, change main PCB. ↓ - (03-20) - 2-15.
  • Page 65 2-16. 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 When discharge pipe temperature thermistor open or Detective actuator short circuit is detected at power on or while running the Discharge pipe temperature...
  • Page 66 2-17. 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 When heat exchanger temperature thermistor open or Detective actuator short circuit is detected at power on or while running the Heat exchanger temperature...
  • Page 67 2-18. 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 When outdoor temperature thermistor open or short Detective actuator circuit is detected at power on or while running the Outdoor temperature thermistor...
  • Page 68 2-19. 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 When input current sensor has detected 0 A, while inverter compressor is operating at higher than 56 rps, Detective actuator Outdoor unit main PCB...
  • Page 69 2-20. E: 94. Over current error (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 70 2-21. 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. When running the compressor, if the detected rotor location is out of phase with actual rotor location more than 90°, the compressor stops.
  • Page 71 2-22. 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. When outdoor fan rotation speed is less than 100 rpm in 20 seconds after fan motor starts, fan motor stops.
  • Page 72 2-23. 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 When the indoor heat exchanger temperature is compared with the room temperature, and either Heat exchanger temperature following condition is detected continuously two times,...
  • Page 73 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 03-39. • Solenoid coil Remove P60 from PCB and check the resistance value of coil. Resistance value is 1.88 kΩ — 2.29 kΩ...
  • Page 74 2-24. 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 Protection stop by discharge temperature ≥ 110 °C Detective actuator during compressor operation generated 2 times within Discharge temperature thermistor...
  • Page 75 Check point 5. Check the refrigerant amount Check the refrigerant leakage. ↓ Check point 6. Replace main PCB If check point 1 to 5 do not improve the symptom, replace the main PCB. ↓ - (03-31) - 2-24. E: A1. Discharge temperature error (Outdoor unit) 2.
  • Page 76 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 77 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 78 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 79 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 80 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 81 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 82 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? ↓...
  • Page 83 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 84 4-2. Inverter compressor ¢ Models: AOYG07KMCC, AOYG09KMCC, and AOYG12KMCC Check point 1. Check connection • Check terminal connection of compressor (loose or incorrect wiring) W(C) V(S) (BLACK) (WHITE) Main PCB U(R) (RED) • Check terminal connection of main PCB (loose or incorrect wiring) Main PCB W400(U) W401(V) W402(W)
  • Page 85 Check point 3. Replace inverter PCB If check point 1 to 2 do not improve the symptom, replace main PCB. - (03-41) - 4-2. Inverter compressor 4. Service parts information...
  • Page 86 ¢ Model: AOYG14KMCC Check point 1. Check the terminal connection. • Check the following terminal connections of the compressor. (Loosening or incorrect wiring.) – R (U): Red – S (V): White – C (W): Black S (V) C (W) Main PCB R (U) •...
  • Page 87 Check point 3. Replace the Inverter PCB. If check point 1 to 2 do not improve the symptom, replace the Inverter PCB. - (03-43) - 4-2. Inverter compressor 4. Service parts information...
  • Page 88 4-3. Outdoor unit Electronic Expansion Valve (EEV) ¢ Models: AOYG07KMCC, AOYG09KMCC, and AOYG12KMCC Check point 1. Check connections Check connection of connector. (Loose connector or open cable) NOTE: For details of wiring diagram, refer to "Wiring diagrams" in Chapter 2. TECHNICAL DATA AND PARTS LIST on page 02-20.
  • Page 89 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 90 ¢ Model: AOYG14KMCC Check point 1. Check connections Check connection of connector. (Loose connector or open cable) NOTE: For details of wiring diagram, refer to "Wiring diagrams" in Chapter 2. TECHNICAL DATA AND PARTS LIST on page 02-20. Check point 2. Check coil of EEV Remove connector, check each winding resistance of coil.
  • Page 91 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 92 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.
  • Page 93 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.
  • Page 94 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 95 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 96 ¢ Heat exchanger temperature thermistor Temperature (°C) Resistance (kΩ) Voltage (V) -30.0 95.58 0.24 -25.0 68.90 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 97 4. CONTROL AND FUNCTIONS 2022.02.03 SR_CH04_AS061EF_01...

  • Page 98: Table Of Contents

    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 ........................04-4 1-4. Rotation number of compressor at normal start-up ............04-5 1-5. Limitation of compressor rotation number by outdoor temperature.........04-6 2.

  • Page 99: Rotation Number Control Of Compressor

    • Rotation number range of compressor Model name Minimum rotation number Maximum rotation number ASYG07KMCE 14 rps 84 rps ASYG09KMCE 14 rps 90 rps...
  • Page 100 F zone Unit: rps Indoor unit fan mode Outdoor Model name temperature zone HIGH QUIET A zone B zone C zone ASYG07KMCE D zone E zone F zone A zone B zone ASYG09KMCE C zone ASYG12KMCE D zone E zone...

  • Page 101: Heating Operation

    • Rotation number range of compressor Unit: rps Model name Minimum rotation number Maximum rotation number ASYG07KMCE ASYG09KMCE ASYG12KMCE ASYG14KMCE • Limit of maximum speed based on outdoor temperature In heating operation, maximum rotation number is defined by outdoor temperature and fan mode.

  • Page 102: Dry Operation

    Zone is defined by set temperature and room temperature. • Rotation number range of compressor Unit: rps Model name Outdoor temperature zone Operating frequency ASYG07KMCE X zone ASYG09KMCE J zone Y zone ASYG12KMCE X zone...

  • Page 103: Rotation Number Of Compressor At Normal Start-Up

    1-4. Rotation number of compressor at normal start-up ¢ Models: AOYG07KMCC, AOYG09KMCC, AOYG12KMCC, and AOYG14KMCC Rotation number of compressor soon after starting is controlled as below. Rotation number VII Rotation number VI Rotation number V Rotation number IV Rotation number III Rotation number II Rotation number I Time 1...

  • Page 104: Limitation Of Compressor Rotation Number By Outdoor Temperature

    1-5. Limitation of compressor rotation number 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...
  • Page 105 • 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 rotation number A zone 43 rps B zone 43 rps AOYG07KMCC C zone 30 rps AOYG09KMCC D zone...

  • Page 106: Auto Changeover Operation

    2. Auto changeover operation When 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 107 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 108: 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 POWERFUL 1,230 1,270 1,310 1,400 HIGH 1,160 1,200 1,240 1,330 MED+ 1,060 1,060 1,120...
  • Page 109 ¢ Cooling operation Switch the airflow AUTO, and indoor fan motor will run according to room temperature, as below. On the other hand, if switched in HIGH—QUIET, indoor motor will run at a constant airflow of COOL operation modes QUIET, LOW, MED, HIGH as shown in “Fan speed” above. Airflow change over (Cooling: Auto) Tr - Ts ≥...
  • Page 110 ¢ Cool air prevention control (heating mode) The maximum value of the indoor fan speed is set as shown below, based on the detected tempera- ture by the indoor heat exchanger sensor on heating mode. • Normal operation Indoor heat exchanger temperature rises Indoor heat exchanger HIGH...
  • Page 111 • 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 112: 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  Models: AOYG07KMCC and AOYG09KMCC Fan speed is defined by outdoor temperature and compressor frequency. •...
  • Page 113  Model: AOYG12KMCC 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 114  Model: AOYG14KMCC 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 115: 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 116: Swing Operation

    4-3. Swing operation • To select vertical airflow swing operation When the swing signal is received, the vertical airflow direction louver starts to swing. – Swinging range • Cooling mode/dry mode/fan mode (1 to 3): 1 ↔ 4 • Heating mode/fan mode (4 to 6): 3 ↔ 6 –...

  • Page 117: 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: When the clock reaches the set timer, the air conditioner will be turned off. Operation mode Stop mode Set time of timer...
  • Page 118 ¢ 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 119: Wired 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: When the clock reaches the set timer, the air conditioner will be turned off. Operation mode Stop mode Set time of timer...
  • Page 120 ¢ 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 121 ¢ 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 122: 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 123: 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 124: Various Control

    7. Various control 7-1. Auto restart When 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 125: Forced Cooling Operation

    7-3. Forced cooling operation The outdoor unit may not operate depending on the room temperature. When 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 126: Powerful Operation

    7-6. POWERFUL operation The POWERFUL operation starts by pressing POWERFUL 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 POWERFUL Cooling Vertical airflow direction louver setting Heating Release condition:...

  • Page 127: 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 128: Outdoor Unit Low Noise Operation

    7-13. Outdoor unit low noise operation The outdoor unit low noise operation functions by OUTDOOR UNIT LOW NOISE button on the re- mote controller. This operation stops the PFC control, and changes the current value. Current Operation mode Trigger condition Release condition Cooling/Dry mode 1.9 A...

  • Page 129: 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. • When 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 130: 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 131: High Temperature And High Pressure Release Control

    8-6. High temperature and high pressure release control • Heating mode Indoor unit heat exchanger Indoor unit heat exchanger temperature rises temperature drops 63°C Zone A 55°C 53°C Zone B 50°C Zone C Zone D Stable zone Zone E Zone Operation Zone A Compressor is stopped.
  • Page 132 - (04-34) - 8-6. High temperature and high pressure release control 8. Various protections...
  • Page 133 5. FILED WORKING 2022.02.03 SR_CH05_AS061EF_01...
  • Page 134 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 ............05-8 2. External input and output................05-9 2-1. External input........................05-10 2-2. External output ......................05-12 2-3. Combination of external input and output ..............05-14 2-4.

  • Page 135: 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 136 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. - (05-2) - 1-1.
  • Page 137 ¢ Contents of function setting Each function setting listed in this section is adjustable in accordance with the installation environ- ment. NOTE: Setting will not be changed if invalid numbers or setting values are selected.  Function setting list Function no. Functions Filter sign 30/31...
  • Page 138 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 139 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 140 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 141 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) - (05-7) -...

  • Page 142: 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 143: 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 Input External input External output Connector Input select signal Operation/Stop —...

  • Page 144: External Input

    2-1. External input With 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 145 ¢ 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 146: 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 147 ¢ 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 "Combination of external input and output"...

  • Page 148: Combination Of External Input And Output

    2-3. Combination of external input and output By combining the function setting of the indoor unit and rotary switch setting of the External input and output PCB, you can select various combinations of functions. Combination examples of external input and output are as follows: External input Function Rotary...
  • Page 149 ¢ Input signal type External input and output PCB: The input signal type can be selected. Signal type (edge or pulse) can be switched by the DIP switch SW302 on the External input and out- put PCB. The width of pulse must be longer than 200 msec.

  • Page 150: Details Of Function

    2-4. Details of function ¢ Control input function • When function setting is “Operation/Stop” mode 1 – In the case of “Edge” input: Function Rotary SW on External External input Input signal Command setting input and output PCB Off → On Operation External input and 46-00...
  • Page 151 • When function setting is “Forced stop” mode – In the case of “Edge” input: Function Rotary SW on External External input Input signal Command setting input and output PCB Off → On Forced stop External input and 46-02 CN313 output PCB On →...
  • Page 152 • When function setting is “Operation/Stop” mode 2 – In the case of “Edge” input: Function Rotary SW on External External input Input signal Command setting input and output PCB Off → On Operation External input and 46-03 CN313 Stop (R.C. output PCB On →...
  • Page 153 • Forced thermostat off function Rotary SW on Input Function setting / External input External input Command signal and output PCB Thermostat 60-00 Off → On External input and 60-09 CN313 output PCB Normal On → Off 60-10 operation Input Compressor Room temp.
  • Page 154 ¢ Control output function • Operation/Stop status Rotary SW on Output Function setting / External input External output Command signal and output PCB 60-00 / 1 Off → On Operation Output of indoor unit CN47 60-00 / 2 On → Off Stop 60-00 / 1 Off →...
  • Page 155 • Indoor unit fan operation status Rotary SW on Output Function setting / External input External output Command signal and output PCB Off → On Fan run 60-10 / C Output of indoor unit CN47 On → Off Fan stop 60-00 / 2 Off →...

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