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Fujitsu AIRSTAGE AGEG09KVCA Service Manual
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Fujitsu AIRSTAGE AGEG09KVCA Service Manual

Fujitsu AIRSTAGE AGEG09KVCA Service Manual

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AIR CONDITIONER
Floor type
INDOOR
AGEG09KVCA
AGEG12KVCA
AGEG14KVCA
OUTDOOR
AOEG09KVCA
AOEG12KVCA
SERVICE MANUAL
AOEG14KVCA
SR_AG001ES_05
2023.12.18

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Summary of Contents for Fujitsu AIRSTAGE AGEG09KVCA

  • Page 1 AIR CONDITIONER Floor type SERVICE MANUAL INDOOR AGEG09KVCA AGEG12KVCA AGEG14KVCA OUTDOOR AOEG09KVCA AOEG14KVCA AOEG12KVCA SR_AG001ES_05 2023.12.18...
  • 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 LLC. ®...
  • 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 2023.12.18 SR_CH01_AG001ES_03...
  • Page 6 CONTENTS 1. GENERAL INFORMATION 1. Specifications....................01-1 1-1. Indoor unit ........................01-1 1-2. Outdoor unit........................01-3 2. Dimensions....................01-4 2-1. Indoor unit ........................01-4 2-2. Outdoor unit........................01-6...
  • Page 7 1. Specifications 1-1. Indoor unit Floor type Type Inverter heat pump Model name AGEG09KVCA AGEG12KVCA AGEG14KVCA Power supply 230 V ~ 50 Hz Available voltage range 198—264 V k→ 2.50 3.50 4.20 Rated Btu/h 8,500 11,900 14,300 Cooling k→ 0.9—3.5 0.9—4.0 0.9—5.2 Min.—Max.
  • Page 8 Model name AGEG09KVCA AGEG12KVCA AGEG14KVCA Cooling A+++ Energy efficiency class Heating (Average) Cooling 2.5 (35 °C) 3.5 (35 °C) 4.2 (35 °C) Pdesign k→ Heating (Average) 2.6 (-10 °C) 3.5 (-10 °C) 4.2 (-10 °C) SEER Cooling 8.50 8.20 8.10 k→h/k→h SCOP Heating (Average)
  • Page 9 1-2. Outdoor unit Type Inverter heat pump Model name AOEG09KVCA AOEG12KVCA AOEG14KVCA Power supply 230 V ~ 50 Hz Available voltage range 198—264 V Starting current Cooling 1,530 1,530 2,210 Airflow rate Heating 1,510 1,510 2,100 Type × Qty Propeller × 1 Motor output →...
  • Page 10 2. Dimensions 2-1. Indoor unit ¢ Models: AGEG09KVCA, AGEG12KVCA, and AGEG14KVCA Unit: mm Side view Front view - (01-4) - 2-1. Indoor unit 2. Dimensions...
  • Page 11  Installation space Unit: mm 100 or more 80 or more 80 or more 50 or more 150 or below from the floor PROHIBITED Grating WARNING • The appliance shall be installed, operated and stored in a room with a floor area larger than ↓ Minimum room area Amount of refrigerant charge M (kg)
  • Page 12 2-2. Outdoor unit ¢ Models: AOEG09KVCA and AOEG12KVCA 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) - (01-6) - 2-2. Outdoor unit 2.
  • Page 13 ¢ Model: AOEG14KVCA 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 - (01-8) - 2-2. Outdoor unit 2. Dimensions...
  • Page 15 2. TECHNICAL DATA AND PARTS LIST 2023.12.18 SR_CH02_AG001ES_04...
  • Page 16 CONTENTS 2. TECHNICAL DATA AND PARTS LIST 1. Precautions....................02-1 2. Indoor unit parts list..................02-2 2-1. Models: AGEG09KVCA, AGEG12KVCA, and AGEG14KVCA........02-2 3. Outdoor unit parts list.................02-8 3-1. Models: AOEG09KVCA and AOEG12KVCA..............02-8 3-2. Model: AOEG14KVCA....................02-12 4. Accessories ....................02-16 4-1. Indoor unit ........................02-16 4-2.
  • 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: AGEG09KVCA, AGEG12KVCA, and AGEG14KVCA ¢ Exterior parts and chassis - (02-2) - 2-1. Models: AGEG09KVCA, AGEG12KVCA, and AGEG14KVCA 2. Indoor unit parts list...
  • Page 19 Item no. Part no. Part name Service part 9316193024 Base ♦ 9316197015 Base cover A ♦ 9316373013 Base cover B ♦ 9316405011 Base bracket ♦ 9316272019 Bracket panel ♦ 9306628024 Bearing C assy ♦ 9900720087 Terminal (3P) ♦ 9316307025 Terminal cover ♦...
  • Page 20 ¢ Casing - (02-4) - 2-1. Models: AGEG09KVCA, AGEG12KVCA, and AGEG14KVCA 2. Indoor unit parts list...
  • Page 21 Item no. Part no. Part name Service part 9316411012 Casing assy ♦ 9316207011 Top cover ♦ 9315281012 Spacer C ♦ 9316209015 Joint U ♦ 9316210011 Guard holder ♦ 9315282019 Spacer D ♦ 9316208018 L and R louver U ♦ 9316211018 Fan guard ♦...
  • Page 22 ¢ Drain pan - (02-6) - 2-1. Models: AGEG09KVCA, AGEG12KVCA, and AGEG14KVCA 2. Indoor unit parts list...
  • Page 23 Item no. Part no. Part name Service part 9316412057 Drain pan assy ♦ 9316217010 Limit switch cover ♦ 9316218017 Key top ♦ 9316177017 Drain cap ♦ 9316214026 Drain pan U ♦ →ire with connector 9711683007 ♦ (Refrigerant leak detect sensor—P410 on Main PCB) 9901089008 Refrigerant leak detect sensor ♦...
  • Page 24 3. Outdoor unit parts list 3-1. Models: AOEG09KVCA and AOEG12KVCA ¢ Exterior parts and chassis - (02-8) - 3-1. Models: AOEG09KVCA and AOEG12KVCA 3. Outdoor unit parts list...
  • Page 25 Item no. Part no. Part name Service part 9322556028 Top panel assy ♦ 9322811011 Protective net ♦ 9900850012 Thermistor (Outdoor temp.) ♦ 9322553010 Motor bracket assy ♦ 9322552020 Cabinet right assy ♦ 9322570000 Switch cover assy ♦ 9709685426 Main PCB (09 model) ♦...
  • Page 26 ¢ Compressor - (02-10) - 3-1. Models: AOEG09KVCA and AOEG12KVCA 3. Outdoor unit parts list...
  • Page 27 Item no. Part no. Part name Service part 9333840024 4-way valve assy ♦ 9970194023 Solenoid ♦ 9322435002 Muffler ♦ 9970095122 Expansion valve coil ♦ 9322463005 Pulse motor valve assy ♦ 9322474001 2-way valve assy ♦ 9322475008 3-way valve assy ♦ 9324024006 S-insulator B ♦...
  • Page 28 3-2. Model: AOEG14KVCA ¢ Exterior parts and Chassis - (02-12) - 3-2. Model: AOEG14KVCA 3. Outdoor unit parts list...
  • Page 29 Item no. Part no. Part name Service part 9322556066 Top panel assy ♦ 9900565060 Thermistor (Outdoor temp.) ♦ 9322811028 Protective net ♦ 9322552099 Cabinet right assy ♦ 9322570024 Switch cover assy ♦ 9709685389 Main PCB (Service unit) ♦ 9900727079 Thermistor assy ♦...
  • Page 30 ¢ Compressor - (02-14) - 3-2. Model: AOEG14KVCA 3. Outdoor unit parts list...
  • Page 31 Item no. Part no. Part name Service part 9810523006 Compressor assy ♦ 9383129063 4-way valve assy ♦ 9970194023 Solenoid ♦ 9322436009 Muffler ♦ 9970173028 Expansion valve coil ♦ 9322463029 Pulse motor valve assy ♦ 9322474001 2-way valve assy ♦ 9322850010 3-way valve assy ♦...
  • Page 32 4. Accessories 4-1. Indoor unit ¢ Models: AGEG09KVCA, AGEG12KVCA, and AGEG14KVCA Part name Exterior Part name Exterior Operation manual (CD- Operation manual ROM) Installation manual Cloth tape Self-tapping screws →all hook bracket (large) Self-tapping screws Remote controller (small) Battery Air cleaning filters Remote controller holder - (02-16) -...
  • Page 33 4-2. Outdoor unit ¢ Models: AOEG09KVCA, AOEG12KVCA, and AOEG14KVCA Part name Exterior Q’ty Part name Exterior Q’ty Installation manual Drain pipe - (02-17) - 4-2. Outdoor unit 4. Accessories...
  • Page 34 5. Optional parts 5-1. Indoor unit ¢ Controllers Exterior Part name Model name Summary Easy finger touch operation with LCD panel. Backlit LCD enables easy operation in a dark room. →ired Remote UT↔-RNR↔Z* →ire type: Non-polar 2-wire Controller Optional Communication Kit is necessary for installation.
  • Page 35 ¢ Others Exterior Part name Model name Summary Required when external device is External connected. UT↔-↓→Z↓Z5 Connect Kit Communication Use to connect Non-polar 2-core wired UT↔-T→R↓Z3 remote controller. Remotely manage an air conditioning system using mobile devices such as smartphones and tablets. For connection indoor unit with UART interface.
  • Page 36 6. Refrigerant system diagrams 6-1. Models: AOEG09KVCA and AOEG12KVCA Heat exchanger 3-Way ( INDOOR ) valve 2-Way valve Muffler Muffler 4-Way valve Strainer Acccumulator Expansion valve Heat exchanger Strainer ( OUTDOOR ) Cooling Heating : Thermistor (Discharge Temp.) : Thermistor (Outdoor Temp.) : Thermistor (Heat Exchanger Out Temp.) : Thermistor (Room Temp.) : Thermistor (Pipe Temp.)
  • Page 37 6-2. Model: AOEG14KVCA Heat exchanger 3-Way ( INDOOR ) valve Pressure switch 2-Way valve Muffler Muffler 4-Way valve Strainer Expansion valve Heat exchanger Strainer ( OUTDOOR ) Cooling Heating : Thermistor (Discharge Temp.) : Thermistor (Outdoor Temp.) : Thermistor (Heat Exchanger Out Temp.) : Thermistor (Room Temp.) : Thermistor (Pipe Temp.) - (02-21) -...
  • Page 38 7. Wiring diagrams 7-1. Indoor unit ¢ Models: AGEG09KVCA, AGEG12KVCA, and AGEG14KVCA - (02-22) - 7-1. Indoor unit 7. →iring diagrams...
  • Page 39 7-2. Outdoor unit ¢ Models: AOEG09KVCA and AOEG12KVCA ¢ Model: AOEG14KVCA - (02-23) - 7-2. Outdoor unit 7. →iring diagrams...
  • Page 40 8. PC board diagrams 8-1. Models: AGEG09KVCA, AGEG12KVCA, and AGEG14KVCA CONTROL UNIT 09 model : EZ-01915HSE INDICATOR PCB 12 model : EZ-01916HSE K20AE-2000HSE-D0 EMI FILTER 14 model : EZ-01917HSE GRFC-8 2 TURNS P1002 JB20-09HG UL1430 AWG22 BLACK WHITE 3.15A POWER SOURCE WHITE AC250V AC230V...
  • Page 41 8-2. Models: AOEG09KVCA and AOEG12KVCA INVERTER ASSEMBLY 09, 12 models : EZ-020MHUE REACTOR 13mH 8A EMI FILTER KRFC-13 EMI FILTER EMI FILTER 2 TURNS KRFC-13 KRFC-13 TO INDOOR UNIR 2 TURNS 1 TURNE UL3271 AWG16 COMPRESSOR W400 UL1015 AWG20 UL3271 AWG16 W103 Winding Resistance W401...
  • Page 42 8-3. Model: AOEG14KVCA INVERTER ASSEMBLY 14 model : EZ-020KHUE EMI FILTER KRFC-13 EMI FILTER EMI FILTER 2 TURNS TO INDOOR UNIT KRFC-13 KRFC-13 UL3271 2 TURNS 1 TURN AWG16 COMPRESSOR W400 UL1015 UL3271 AWG20 AWG16 W103 Winding Resistance BLACK W401 WHITE WHITE UL3271...
  • Page 43 3. TROUBLESHOOTING 2023.12.18 SR_CH03_AG001ES_03...
  • Page 44 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 45 CONTENTS (continued) 5. Thermistor resistance values..............03-44 5-1. Indoor unit ........................03-44 5-2. Outdoor unit........................03-45...
  • Page 47 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 in- dicator lamps to show the error content.
  • Page 48 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 49 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 50 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 51 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 →hen the outdoor unit cannot properly receive the serial Detective actuator Fan motor signal from indoor unit for 10 seconds or more.
  • Page 52 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 53 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 Detective actuator →ired remote controller more than 1 minute during →ired remote control...
  • Page 54 2-4. 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 55 2-5. 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 56 2-6. 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 57 2-7. 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 58 2-8. E: 45. Refrigerant leakage sensor error (Indoor unit) Operation indicator 4 time flash Timer indicator 5 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 45 →hen refrigerant leakage sensor open, short circuit, or Detective actuator Refrigerant leakage sensor abnormal voltage of drive circuits detected.
  • Page 59 2-9. E: 45. Refrigerant leakage sensor deterioration (Indoor unit) Operation indicator 4 time flash Timer indicator 5 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 45 →hen refrigerant leakage sensor open, short circuit, or Detective actuator Refrigerant leakage sensor abnormal voltage of drive circuits detected.
  • Page 60 2-10. 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 61 2-11. E: 57. Damper (Open/Close) detection limit switch error Operation indicator 5 time flash Timer indicator 7 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 57 Indoor unit main PCB • →hen limit switch were not able to detect the close though the damper close.(Upper air flow) Limit switch Detective actuator...
  • Page 62 2-12. E: 57. Damper (Open/Close) simultaneous detection limit switch error (Indoor unit) Operation indicator 5 time flash Timer indicator 7 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 57 Indoor unit main PCB →hen the limit switch detects open and close at the Detective actuator simultaneous.
  • Page 63 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 64 2-14. 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 65 2-15. E: 73. Outdoor unit heat exchanger 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 66 2-16. 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 67 2-17. 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 68 2-18. 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 69 2-19. 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 90°, the compressor stops.
  • Page 70 2-20. 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 71 2-21. 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 72 Check point 4. Check the solenoid coil and 4-way valve NOTE: Refer solenoid coil and 4-way valve in "Service parts information" on page 03-37. • Solenoid coil Remove CN30 (for 09/12 model) and CN500 (for 14 model) from PCB and check the resistance value of coil.
  • Page 73 2-22. 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 74 Check point 5. Check the refrigerant amount Check the refrigerant leakage. Check point 6. Replace the main PCB If check point 1 to 5 do not improve the symptom, replace the main PCB. - (03-28) - 2-22. E: A1. Discharge temperature error (Outdoor unit) 2.
  • Page 75 2-23. E: A8. Refrigerant leakage sensor error (Indoor unit) Operation indicator 10 time flash Timer indicator 8 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: A8 Detective actuator Refrigerant leakage sensor Forecast of cause Refrigerant leakage Check point 1.
  • 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? MPa MPa •...
  • 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: AOEG09KVCA and AOEG12KVCA Check point 1. Check the terminal connection. • Check the following terminal connections of the compressor. (Loosening or incorrect wiring.) S (V) C (W) R (U): Red S (V): →hite Main PCB C (W): Black R (U) •...
  • Page 85 ¢ Model: AOEG14KVCA Check point 1. Check connection • Check terminal connection of compressor (loose or incorrect wiring) T(W) S(V) (BLACK) (WHITE) Main PCB R(U) (RED) • Check terminal connection of main PCB (loose or incorrect wiring) Main PCB W400(U) W401(V) W402(W) BLACK WHITE...
  • Page 86 4-3. Outdoor unit Electronic Expansion Valve (EEV) ¢ Models: AOEG09KVCA, AOEG12KVCA, and AOEG14KVCA 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 02-22.
  • Page 87 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 88 4-4. Indoor unit fan motor ¢ Models: AGEG09KVCA, AGEG12KVCA, and AGEG14KVCA 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 89 4-5. Outdoor unit fan motor ¢ Models: AOEG09KVCA, AOEG12KVCA, and AOEG14KVCA 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 90 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 91 5-2. Outdoor unit ¢ Discharge temperature thermistor Temperature (°C) Resistance (kΩ) Voltage (V) -30.0 1,000.13 0.06 -25.0 720.28 0.09 -20.0 525.51 0.12 -15.0 388.12 0.16 -10.0 289.97 0.21 -5.0 219.01 0.28 167.12 0.36 128.77 0.46 10.0 100.14 0.57 15.0 78.56 0.71 20.0 62.14...
  • Page 92 ¢ 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 93 4. CONTROL AND FUNCTIONS 2023.12.18 SR_CH04_AG001ES_03...
  • Page 94 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. Compressor frequency limitation by outdoor temperature ..........04-6 2.
  • Page 95 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 96 Unit: rps Outdoor Indoor unit fan mode Model name temperature HIGH QUIET zone A zone B zone AGEG09KVCA C zone D zone AGEG12KVCA E zone F zone A zone B zone C zone AGEG14KVCA D zone E zone F zone - (04-2) - 1-1.
  • Page 97 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 98 1-3. Dry operation The rotation number of compressor shall change according to the temperature, set temperature, and room temperature variation which the room temperature sensor of the indoor unit has detected as shown in the table below. Zone is defined by set temperature and room temperature. •...
  • Page 99 1-4. Rotation number of compressor at normal start-up ¢ Models: AOEG09KVCA and AOEG12KVCA 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 Time 2...
  • Page 100 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 101 • 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 AOEG09KVCA C zone 17 rps AOEG12KVCA D zone...
  • Page 102 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 103 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 104 3. Fan control Tr: Room temperature Ts: Setting temperature 3-1. Indoor fan control ¢ Fan speed Indoor fan speed is defined as below. • Models: AGEG09KVCA and AGEG12KVCA Speed (rpm) Fan mode Operation mode Upper & Lower air flow (Upper/Lower) Upper air flow mode mode PO→ERFUL...
  • Page 105 • Model: AGEG14KVCA Speed (rpm) Fan mode Operation mode Upper & Lower air flow (Upper/Lower) Upper air flow mode mode PO→ERFUL 1,440/1,230 1,440/ — HIGH 1,330/1,120 1,370/ — MED+ 1,100/930 1,130/ — 1,100/930 1,130/ — Heating LO→- 860/730 890/ — QUIET 660/560 680/ —...
  • Page 106 ¢ 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 107 • Powerful operation Indoor heat exchanger temperature rises Indoor heat exchanger POWERFUL temperature drops 42°C 34°C HIGH 39°C 31°C 37°C 29°C Cool air prevention 30°C 24°C S-LOW 7 minutes later: Indoor heat exchanger temperature rises Indoor heat exchanger POWERFUL temperature drops 42°C 34°C HIGH...
  • Page 108 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: AOEG09KVCA Fan speed is defined by outdoor temperature and compressor frequency. •...
  • Page 109  Model: AOEG12KVCA 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 110  Model: AOEG14KVCA 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 111 4. Louver control 4-1. Horizontal louver control Each time the button is pressed, the airflow direction range will change as below: Side view • Remote controller display is not changed. • Up/down airflow direction is set automatically as shown, in accordance with the type of operation selected.
  • Page 112 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 113 ¢ 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 114 5-2. Wired remote control Temperature On/Off timer Program timer Sleep timer Weekly timer Setback 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 115 ¢ 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 116 ¢ Temperature Setback Timer • The temperature setback timer only changes the set temperature for 7 days, it cannot be used to start or stop air conditioner operation. • The temperature setback timer can be set to operate up to two times per day but only one temperature setting can be used.
  • Page 117 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 118 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 119 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 120 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 121 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 Horizontal louver setting Heating Release condition: •...
  • Page 122 7-9. Compressor preheating By preheating the compressor, warm airflow is quickly discharged when the operation is started. • Triggering condition – 30 minutes after compressor stopped. – Outdoor unit heat exchanger temperature (Tn) -2°C -4°C →hen the jumper wire (JM2) is disconnected: 7°C 5°C 7-10.
  • Page 123 7-13. Outdoor unit low noise operation The outdoor unit low noise operation functions by OUTDOOR UNIT LO→ NOISE button on the re- mote controller. This operation stops the PFC control, and changes the current value. • Models: AOEG09KVCA and AOEG12KVCA Current Operation mode Trigger condition...
  • Page 124 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 125 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 126 8-5. 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 8-6. Low outdoor temperature protection →hen the outdoor temperature sensor detects lower than the trigger condition below, the compres- sor is stopped.
  • Page 127 5. FILED WORKING 2023.12.18 SR_CH05_AG001ES_03...
  • Page 128 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 ............05-6...
  • Page 129 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 130 ¢ 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 Remote controller address setting Filter sign...
  • Page 131 2) Filter sign Select appropriate intervals for displaying the filter sign on the indoor unit according to the estimated amount of dust in the air of the room. If the indication is not required, select "No indication" (03). Function number Setting value Setting description Factory setting...
  • Page 132 5) 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 133 8) Cold air prevention This setting is to disable the cold air prevention function during heating operation. →hen disabled, the fan setting will always follow the setting on the remote controller. (Excluding defrost mode) Function number Setting value Setting description Factory setting Enable ♦...
  • Page 134 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.

This manual is also suitable for:

Airstage ageg12kvcaAirstage ageg14kvcaAirstage aoeg09kvcaAirstage aoeg14kvcaAirstage aoeg12kvca