Fujitsu ASBG09CMBA Service Manual
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Fujitsu ASBG09CMBA Service Manual

Fujitsu ASBG09CMBA Service Manual

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AIR CONDITIONER
Wall mounted type
INDOOR
OUTDOOR
SERVICE MANUAL
ASBG09CMBA
ASBG12CMBA
AOBG09CMCA
AOBG12CMCA
SR_AS096EF_02
2023.03.13

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  • Page 1 AIR CONDITIONER Wall mounted type SERVICE MANUAL INDOOR ASBG09CMBA ASBG12CMBA OUTDOOR AOBG09CMCA AOBG12CMCA SR_AS096EF_02 2023.03.13...
  • 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 2023.02.20 SR_CH01_AS095EF_01...
  • Page 6 CONTENTS 1. GENERAL INFORMATION 1. Specifications....................01-1 1-1. Indoor unit ........................01-1 1-2. Outdoor unit........................01-2 2. Dimensions....................01-3 2-1. Indoor unit ........................01-3 2-2. Outdoor unit........................01-5...
  • Page 7 1. Specifications 1-1. Indoor unit Wall mounted Type Inverter, Cooling only Model name ASBG09CMBA ASBG12CMBA Power supply 220 V~ 60 Hz Power supply intake Outdoor unit Available voltage range 198—242 V k→ 2.64 3.52 Rated Btu/h 9,000 12,000 Capacity k→...
  • Page 8 1-2. Outdoor unit Type Inverter, Cooling only Model name AOBG09CMCA AOBG12CMCA Power supply 220 V~ 60 Hz Power supply intake Outdoor unit Available voltage range 198—242 V Starting current Airflow rate 1,740 1,700 Type × Qty Propeller fan × 1 Motor output →...
  • Page 9 2. Dimensions 2-1. Indoor unit ¢ Models: ASBG09CMBA and ASBG12CMBA Unit: mm Outline of indoor unit for pipe inlet Ø65 for pipe inlet Ø65 - (01-3) - 2-1. Indoor unit 2. Dimensions...
  • Page 10  Installation space requirement Provide sufficient installation space for product safety. Unit: mm Outline of unit 25 or more 52 or more 70 or more 130 or more 1,500 or more - (01-4) - 2-1. Indoor unit 2. Dimensions...
  • Page 11 2-2. Outdoor unit ¢ Models: AOBG09CMCA and AOBG12CMCA 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) - (01-5) - 2-2. Outdoor unit 2.
  • Page 12 - (01-6) - 2-2. Outdoor unit 2. Dimensions...
  • Page 13 2. TECHNICAL DATA AND PARTS LIST 2023.02.20 SR_CH02_AS095EF_01...
  • Page 14 CONTENTS 2. TECHNICAL DATA AND PARTS LIST 1. Precautions....................02-1 2. Indoor unit parts list..................02-2 2-1. Models: ASBG09CMBA and ASBG12CMBA ..............02-2 3. Outdoor unit parts list.................02-6 3-1. Models: AOBG09CMCA and AOBG12CMCA ..............02-6 4. Accessories ....................02-12 4-1. Indoor unit ........................02-12 4-2. Outdoor unit........................02-12 5.
  • Page 15 • 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 16 2. Indoor unit parts list 2-1. Models: ASBG09CMBA and ASBG12CMBA ¢ Exterior parts - (02-2) - 2-1. Models: ASBG09CMBA and ASBG12CMBA 2. Indoor unit parts list...
  • Page 17 →ire cover ♦ 9332875010 Air filter ♦ 9317250009 Air cleaning filter assy ♦ ◊: For purchasing, contact our local sales subsidiary. ♦: For purchasing, visit our service portal. - (02-3) - 2-1. Models: ASBG09CMBA and ASBG12CMBA 2. Indoor unit parts list...
  • Page 18 ¢ Chassis - (02-4) - 2-1. Models: ASBG09CMBA and ASBG12CMBA 2. Indoor unit parts list...
  • Page 19 Diffuser assy ♦ 9333353005 Horizontal louver ♦ 9306628024 Bearing C assy ♦ ◊: For purchasing, contact our local sales subsidiary. ♦: For purchasing, visit our service portal. - (02-5) - 2-1. Models: ASBG09CMBA and ASBG12CMBA 2. Indoor unit parts list...
  • Page 20 3. Outdoor unit parts list 3-1. Models: AOBG09CMCA and AOBG12CMCA ¢ Exterior parts and chassis - (02-6) - 3-1. Models: AOBG09CMCA and AOBG12CMCA 3. Outdoor unit parts list...
  • Page 21 Item no. Part no. Part name Service part 9323834781 Heat exchanger unit (09 model) ♦ 9322273024 Condenser total assy (12 model) ♦ 9322811059 Protective net assy ♦ 9322556165 Top panel assy ♦ 9900565053 Thermistor (Outdoor temp.) ♦ 9709688175 Main PCB (09 model) ♦...
  • Page 22 ¢ Compressor (for 09 model) - (02-8) - 3-1. Models: AOBG09CMCA and AOBG12CMCA 3. Outdoor unit parts list...
  • Page 23 Item no. Part no. Part name Service part 9388202006 Compressor assy ♦ 9300347006 Discharge pipe assy ♦ 9970222009 Expansion valve coil ♦ 9322403001 Pulse motor valve assy ♦ 9322472007 2-way valve assy ♦ 9322473004 3-way valve assy ♦ 9300357005 Sound insulator B ♦...
  • Page 24 ¢ Compressor (for 12 model) - (02-10) - 3-1. Models: AOBG09CMCA and AOBG12CMCA 3. Outdoor unit parts list...
  • Page 25 Item no. Part no. Part name Service part 9322425003 Compressor assy ♦ 9970222009 Expansion valve coil ♦ 9322403001 Pulse motor valve assy ♦ 9322472007 2-way valve assy ♦ 9322473004 3-way valve assy ♦ 9300357005 Sound insulator B (09 model) ♦ 9324110006 Sound insulator B (12 model) ♦...
  • Page 26 4. Accessories 4-1. Indoor unit ¢ Models: ASBG09CMBA and ASBG12CMBA Part name Exterior Part name Exterior Self-tapping screw Operation manual (large) Self-tapping screw Installation manual (small) →all hook bracket Filter holder Remote controller Ion deodorization filter Remote controller Apple-catechin filter...
  • Page 27 5. Optional parts 5-1. Indoor unit ¢ Controllers Exterior Part name Model name Summary Large and full-dot liquid crystal screen, wide and large keys easy to press, user-intuitive arrow key. →ired Remote →ire type: Polar 3-wire UT↔-RVN↔M Controller Optional Communication Kit is necessary for installation.
  • Page 28 ¢ Others Exterior Part name Model name Summary Required when external device is connected. External UT↔-↓→Z↓Z5 Connect Kit Use to connect with optional devices and air conditioner PCB. Communication UT↔-↓CB↓Z2 Connecting point: CN2 on Main PCB Remotely manage an air conditioning system using mobile devices such as smartphones and tablets.
  • Page 29 6. Refrigerant system diagrams 6-1. Model: AOBG09CMCA Heat exchanger 3-way 2-way (INDOOR) valve valve Strainer Expansion valve Heat exchanger Strainer (OUTDOOR) : Thermistor (Discharge temperature) : Thermistor (Outdoor temperature) : Thermistor (Pipe temperature) : Thermistor (Pipe temperature) : Thermistor (Room temperature) - (02-15) - 6-1.
  • Page 30 6-2. Model: AOBG12CMCA Heat exchanger 3-way 2-way (INDOOR) valve valve Muffler 4-way valve Strainer Expansion valve Heat exchanger Strainer (OUTDOOR) : Thermistor (Discharge temperature) : Thermistor (Outdoor temperature) : Thermistor (Heat exchanger out temperature) : Thermistor (Pipe temperature) : Thermistor (Room temperature) - (02-16) - 6-2.
  • Page 31 7. Wiring diagrams 7-1. Indoor unit ¢ Models: ASBG09CMBA and ASBG12CMBA - (02-17) - 7-1. Indoor unit 7. →iring diagrams...
  • Page 32 7-2. Outdoor unit ¢ Models: AOBG09CMCA and AOBG12CMCA - (02-18) - 7-2. Outdoor unit 7. →iring diagrams...
  • Page 33 8. PC board diagrams 8-1. Models: ASBG09CMBA and ASBG12CMBA CONTROL UNIT 09 model : EZ-02203WSE 12 model : EZ-02204WSE EARTH TERMINAL OUTDOOR UNIT CN7 DC Fan motor CN4 Thermistor Characteristics. Terminal AC220V Lead wire TERMINAL Pin No. Function of terminal...
  • Page 34 8-2. Models: AOBG09CMCA and AOBG12CMCA CONTROL UNIT 09 model : EZ-022CWUE EZ-022DWUE 12 model : EMI FILTER F8C T 28*13*16-C TR-28-16-13 3 TURNS UL3271 AWG16 Compressor COMPRESSOR W400 Winding Resistance REACTOR 13mH 8A UL3271 AWG16 W401 WHITE WHITE 2.180 EMI FILTER EMI FILTER UL3271 AWG16 TO INDOOR UNIT...
  • Page 35 3. TROUBLESHOOTING 2023.03.13 SR_CH03_AS095EF_01...
  • Page 36 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 37 CONTENTS (continued) 5-1. Indoor unit ........................03-43 5-2. Outdoor unit........................03-44...
  • Page 39 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 40 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 41 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 42 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 43 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 44 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 45 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 46 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 47 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 48 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 49 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 →hen power is on and there is some below case. Detective actuator Indoor unit Main PCB...
  • Page 50 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 →hen the MANUAL AUTO button becomes on for Detective actuator Indicator PCB consecutive 60 or more seconds.
  • Page 51 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 52 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 →hen heat exchanger temperature thermistor open or Detective actuator Heat exchanger temperature short circuit is detected.
  • Page 53 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 →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 54 2-12. 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 55 2-13. 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 415 V for over 3 seconds, the compressor stops. Detective actuator Outdoor unit Main PCB...
  • Page 56 2-14. 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. →hen more than normal operating current to IPM in main PCB flows, the compressor stops.
  • Page 57 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. - (03-19) - 2-14. E: 65. IPM error (Outdoor unit) 2.
  • Page 58 2-15. 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 59 2-16. 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 60 2-17. 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 61 2-18. 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 62 2-19. 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 63 2-20. 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 Inverter PCB 1. →hen running the compressor, if the detected rotor location is out of phase with actual rotor location Main PCB more than 90°, the compressor stops.
  • Page 64 2-21. 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 Inverter PCB 1. →hen outdoor fan rotation speed is less than 100 rpm in 20 seconds after fan motor starts, fan motor Main PCB stops.
  • Page 65 Check point 4. Check output voltage of inverter PCB Check outdoor unit circuit diagram and the voltage. (Measure at inverter PCB side connector) FAN MOTOR BLACK WHITE YELLOW BROWN NOTE: For details of wiring diagram, refer to "→iring diagrams" in Chapter 2. TECHNICAL DATA AND PARTS LIST on page 02-17.
  • Page 66 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 67 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. - (03-29) - 2-22. E: A1. Discharge temperature error (Outdoor unit) 2.
  • Page 68 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 69 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 70 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 71 3-4. No cooling 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? • Is air filter dirty? •...
  • Page 72 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 73 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 74 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 75 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 76 4-2. Inverter compressor 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 77 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 02-17. Check point 2.
  • Page 78 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 79 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 80 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 81 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 82 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 83 ¢ 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 84 - (03-46) - 5-2. Outdoor unit 5. Thermistor resistance values...

  • Page 85: Control And Functions

    4. CONTROL AND FUNCTIONS 2023.03.17 SR_CH04_AS095EF_01...

  • Page 86: Table Of Contents

    CONTENTS 4. CONTROL AND FUNCTIONS 1. Rotation number control of compressor...........04-1 1-1. Cooling operation ......................04-1 1-2. Dry operation ........................04-3 1-3. Compressor rotation number at normal start-up .............04-4 1-4. Compressor rotation number limitation by outdoor temperature........04-5 2. Auto changeover operation................04-7 3. Fan control....................04-8 3-1.

  • Page 87: Rotation Number Control Of Compressor

    • Rotation number range of compressor Unit: rps Model name Minimum frequency Maximum frequency ASBG09CMBA ASBG12CMBA - (04-1) - 1-1. Cooling operation 1. Rotation number control of compressor...
  • Page 88 Unit: rps Outdoor Indoor unit fan mode Model name temperature HIGH QUIET zone A zone B zone C zone ASBG09CMBA D zone E zone F zone A zone B zone C zone ASBG12CMBA D zone E zone F zone - (04-2) - 1-1.

  • Page 89: 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 ↓ zone ASBG09CMBA J zone ↔ zone ↓ zone ASBG12CMBA J zone ↔ zone • Compressor control based on room temperature...

  • Page 90: Compressor Rotation Number At Normal Start-Up

    1-3. Compressor rotation number at normal start-up 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 Time 3 Time 4...

  • Page 91: Compressor Rotation Number Limitation By Outdoor Temperature

    1-4. Compressor rotation number limitation by outdoor temperature ¢ Model: AOBG09CMCA The minimum rotation number of compressor is limited by outdoor temperature as below. Cooling/Dry mode G zone 50°C F zone 38°C E zone 19°C D zone 10°C C zone 0°C B zone -10°C...
  • Page 92 ¢ Model: AOBG12CMCA 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 frequency A zone...

  • Page 93: 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 cooling, dry and monitoring modes. During operation, the optimum mode is auto- matically switched in accordance with temperature changes. The temperature can be set between 18°C and 30°C in 1.0°C steps.

  • Page 94: 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 ASBG09CMBA ASBG12CMBA PO→ERFUL 1,320 1,380 HIGH 1,160 1,320 1,050 1,160 LO→...
  • Page 95 ¢ Moisture return prevention control (cooling and dry mode) Switch the airflow AUTO at cooling mode, and the indoor fan motor will run as shown below. Compressor Indoor fan setting airflow Indoor fan speed S-LOW 30 (sec) - (04-9) - 3-1.

  • Page 96: 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: AOBG09CMCA Fan speed is defined by outdoor temperature and rotation number of the compressor. •...
  • Page 97  Model: AOBG12CMCA 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 -8°C -10°C H zone...

  • Page 98: Louver Control

    4. Louver control 4-1. Horizontal 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 99: 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 100 ¢ 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 101: Ired Remote Control

    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 102 ¢ 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 103: Various Control

    6. Various control 6-1. 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 104: Forced Cooling Operation

    6-3. 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 105: Compressor Preheating

    6-6. Compressor preheating By preheating the compressor, warm airflow is quickly discharged when the operation is started. • Triggering condition – 30 minutes after compressor stopped. – →hen the jumper wire (J600) is disconnected: 7°C 5°C 6-7. Electronic expansion valve control The most proper opening of the electronic expansion valve is calculated and controlled under the present operating condition based on the table below.

  • Page 106: Outdoor Unit Low Noise Operation

    6-10. 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. Current Operation mode Trigger condition Release condition Cooling/Dry mode 1.9 A...

  • Page 107: Various Protections

    7. Various protections 7-1. 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 compressor fre- quency is decreased as the table below, and it continues to decrease until the discharge tempera- ture becomes lower than the trigger condition.

  • Page 108: Current Release Control

    7-3. 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 109: High Temperature And High Pressure Release Control

    7-6. High temperature and high pressure release control The compressor is controlled as follows. ¢ Model: AOBG09CMCA Indoor unit heat exchanger Indoor unit heat exchanger temperature rises temperature drops 63°C 61°C Zone A 59°C Zone B Zone C Stable zone Zone D Zone Operation...
  • Page 110 - (04-24) - 7-6. High temperature and high pressure release control 7. Various protections...

  • Page 111: Filed Working

    5. FILED WORKING 2023.03.13 SR_CH05_AS095EF_01...
  • Page 112 CONTENTS 5. FILED WORKING 1. Function settings (for indoor unit).............05-1 1-1. Function settings by using remote controller ..............05-1 1-2. Custom code setting for wireless remote controller ............05-5 2. External input and output (for indoor unit) ..........05-6 2-1. External input........................05-6 2-2. External output .......................05-8...

  • Page 113: Function Settings (For Indoor Unit)

    1. Function settings (for indoor unit) 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.
  • Page 114 ¢ 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 115 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 116 7) External input control "Operation/Stop" mode or "Forced stop" mode can be selected. Function number Setting value Setting description Factory setting Operation/Stop mode ♦ (Setting prohibited) Forced stop mode 8) Room temperature sensor switching (Aux.) To use the temperature sensor on the wired remote controller only, change the setting to "→ired re- mote controller"...

  • Page 117: 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 118: External Input And Output (For Indoor Unit)

    2. External input and output (for indoor unit) →ith using external input and output functions, this product can be operated inter-connectedly with an external device. Connector Input Output Remarks CNA01 Control input — See external input/output CNB01 — Operation status output settings for details.
  • Page 119 • When function setting is “Forced stop” mode: Input signal Forced stop Command Normal Operation Indoor unit Stop Remote controller Remote control operation invalidity • Optional part: Part name Model name Exterior External input wire External Connect Kit UT↔-↓→Z↓Z5 Communication Kit UT↔-↓CB↓Z2 * For operating the external function, the wall mounted type requires the communication kit in addi- tion to the wire (UT↔-↓→Z↓Z5).

  • Page 120: External Output

    2-2. External output →ith using external output function, operating status of this product can be transmitted to the exter- nal device, and also, this product can be inter-connected with the external device. ¢ Operation status output Air conditioner operation status signal can be output. •...
  • Page 121 ¢ Error status output Air conditioner error status signal can be output. • Circuit diagram example: Indoor unit control PCB Communication kit Connected unit Connector DC 24 V Example: Relay unit Example: Display Relay power supply 10 m* Signal Optional parts Locally purchased –...

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