Fujitsu ASUG09LZAS Service Manual
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Fujitsu ASUG09LZAS Service Manual

Wall mounted type, refrigerant r410a inverter, indoor/outdoor
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AIR CONDITIONER
Wall mounted type
INDOOR
OUTDOOR
SERVICE MANUAL
ASUG09LZAS
ASUG12LZAS
ASUG15LZAS
AOUG09LZAS1
AOUG12LZAS1
AOUG15LZAS1
SR_AS024EF_04
2020.02.25

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Summary of Contents for Fujitsu ASUG09LZAS

  • Page 1 AIR CONDITIONER Wall mounted type SERVICE MANUAL INDOOR ASUG09LZAS ASUG12LZAS ASUG15LZAS OUTDOOR AOUG09LZAS1 AOUG12LZAS1 AOUG15LZAS1 SR_AS024EF_04 2020.02.25...
  • 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 2019.12.20 SR_CH01_AS024EF_01...

  • Page 6: Table Of Contents

    CONTENTS 1. GENERAL INFORMATION 1. Specifications....................01-1 1-1. Indoor unit ........................01-1 1-2. Outdoor unit........................01-3 2. Dimensions....................01-4 2-1. Indoor unit ........................01-4 2-2. Outdoor unit........................01-6...

  • Page 7: Specifications

    1. Specifications 1-1. Indoor unit Wall mounted Type Inverter heat pump Model name ASUG09LZAS ASUG12LZAS ASUG15LZAS Power supply 208/230 V ~ 60 Hz Power supply intake Outdoor unit Available voltage range 187—253 V 2.64 3.52 4.25 Rated Btu/h 9,000 12,000...
  • Page 8 Wall mounted Type Inverter heat pump Model name ASUG09LZAS ASUG12LZAS ASUG15LZAS NOTES: • Specifications are based on the following conditions: – Cooling: Indoor temperature of 80 °FDB (26.67 °CDB) /67 °FWB (19.44 °CWB), and outdoor temperature of 95 °FDB (35 °CDB) / 75 °FWB (23.9 °CWB).

  • Page 9: Outdoor Unit

    1-2. Outdoor unit Type Inverter heat pump Model name AOUG09LZAS1 AOUG12LZAS1 AOUG15LZAS1 Power supply 208/230 V ~ 60 Hz Power supply intake Outdoor unit Available voltage range 187—253 V Starting current Cooling 1,089 (1,850) 1,171 (1,990) 1,218 (2,070) Airflow rate CFM (m Heating 1,089 (1,850)

  • Page 10: Dimensions

    2. Dimensions 2-1. Indoor unit ¢ Models: ASUG09LZAS, ASUG12LZAS, and ASUG15LZAS Unit: in (mm) 38-9/16 (980) 9-7/16 (240) 3-1/16 16-1/4 (413) 15-3/4 (400) 3-9/16 (77) (90) Outline of indoor unit for pipe inlet for pipe inlet Ø 2-9/16 (65) Ø 2-9/16 (65)
  • Page 11  Installation space requirement Provide sufficient installation space for product safety. Unit: in (mm) 2 (40) or more Wall hook bracket 3 (70) or more Outline of the indoor unit 7 (160) or more 5 (117) or more 60 (1,500) or more - (01-5) - 2-1.

  • Page 12: Outdoor Unit

    2-2. Outdoor unit ¢ Models: AOUG09LZAS1, AOUG12LZAS1, and AOUG15LZAS1 Unit: in (mm) 4-M10 hole 22-13/16 (580) 4-5/16 (109) Pitch of bolts for installation Top view 3/4 (19) 31-7/16 (799) 2-11/16 (68) 1/2 (13) 11-7/16 (290) 1-5/16 (33) 1-3/16 (30) Side view Front view Side view Airflow...
  • Page 13 2. TECHNICAL DATA AND PARTS LIST 2020.01.28 SR_CH02_AS024EF_02...
  • Page 14 CONTENTS 2. TECHNICAL DATA AND PARTS LIST 1. Precautions....................02-1 2. Indoor unit parts list..................02-2 2-1. Models: ASUG09LZAS, ASUG12LZAS, and ASUG15LZAS..........02-2 3. Outdoor unit parts list.................02-6 3-1. Models: AOUG09LZAS1, AOUG12LZAS1, and AOUG15LZAS1........02-6 4. Accessories ....................02-10 4-1. Indoor unit ........................02-10 4-2. Outdoor unit........................02-10 5.

  • Page 15: Precautions

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

  • Page 16: Indoor Unit Parts List

    2. Indoor unit parts list 2-1. Models: ASUG09LZAS, ASUG12LZAS, and ASUG15LZAS ¢ Exterior parts and Accessories - (02-2) - 2-1. Models: ASUG09LZAS, ASUG12LZAS, and ASUG15LZAS 2. Indoor unit parts list...
  • Page 17 ♦ 9383730023 Louver spring ♦ 9333608006 Bush ♦ — Front panel — — Panel cover — — Front panel cover — — Front panel B — - (02-3) - 2-1. Models: ASUG09LZAS, ASUG12LZAS, and ASUG15LZAS 2. Indoor unit parts list...
  • Page 18 ¢ Chassis - (02-4) - 2-1. Models: ASUG09LZAS, ASUG12LZAS, and ASUG15LZAS 2. Indoor unit parts list...
  • Page 19 ♦ 9387587029 Base assy ♦ — Control box — — Control cover — — Display case — — Motor case — — Motor cover assy — - (02-5) - 2-1. Models: ASUG09LZAS, ASUG12LZAS, and ASUG15LZAS 2. Indoor unit parts list...

  • Page 20: Outdoor Unit Parts List

    3. Outdoor unit parts list 3-1. Models: AOUG09LZAS1, AOUG12LZAS1, and AOUG15LZAS1 ¢ Exterior parts and chassis - (02-6) - 3-1. Models: AOUG09LZAS1, AOUG12LZAS1, and AOUG15LZAS1 3. Outdoor unit parts list...
  • Page 21 Item no. Part no. Part name Service part 9322556028 Top panel assy ♦ 9377854001 Protective net assy ♦ 9322327000 Thermistor holder ♦ 9322552242 Cabinet right assy ♦ 9384276001 Conduit cover ♦ 9322570062 Switch cover assy ♦ 9383720000 Drain cap assy ♦...
  • Page 22 ¢ Compressor - (02-8) - 3-1. Models: AOUG09LZAS1, AOUG12LZAS1, and AOUG15LZAS1 3. Outdoor unit parts list...
  • Page 23 Item no. Part no. Part name Service part 9810542007 Compressor (for 09-12 model) ♦ 9810541000 Compressor (for 15 model) ♦ 9322446015 4-way valve assy ♦ 9970194023 Solenoid ♦ 9970173028 Expansion valve coil ♦ 9322463029 Pulse motor valve assy ♦ 9322474001 2-way valve assy ♦...

  • Page 24: Accessories

    4. Accessories 4-1. Indoor unit ¢ Models: ASUG09LZAS, ASUG12LZAS, and ASUG15LZAS 4-2. Outdoor unit ¢ Models: AOUG09LZAS1, AOUG12LZAS1, and AOUG15LZAS1 Part name Exterior Q’ty Part name Exterior Q’ty Installation manual Cable tie Drain pipe Drain cap - (02-10) - 4-1. Indoor unit...

  • Page 25: Optional Parts

    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. Wire type: Non-polar 2-wire Optional communication kit is necessary for installation. NOTE: When this remote controller is connected, wireless remote controller cannot be...
  • Page 26 ¢ Others Exterior Part name Model name Summary Required when external device is External connected. UTY-XWZXZ5 connect kit Use to connect with external devices External input and air conditioner PCB. UTY-XCSXZ2 and output PCB Optional External connect kit is necessary for installation. Communication Use to connect Non-polar 2-core wired UTY-TWRXZ2...

  • Page 27: Refrigerant System Diagrams

    6. Refrigerant system diagrams 6-1. Models: AOUG09LZAS1, AOUG12LZAS1, and AOUG15LZAS1 Heat exchanger 3-way (INDOOR) valve 2-way Muffler valve Muffler Strainer 4-way valve Expansion valve Accumulator Heat exchanger Strainer (OUTDOOR) Cooling Heating : Thermistor (Compressor temperature) : Thermistor (Discharge temperature) : Thermistor (Outdoor temperature) : Thermistor (Heat exchanger out temperature) : Thermistor (Room temperature) : Thermistor (Pipe temperature)

  • Page 28: Wiring Diagrams

    7. Wiring diagrams 7-1. Indoor unit ¢ Models: ASUG09LZAS, ASUG12LZAS, and ASUG15LZAS - (02-14) - 7-1. Indoor unit 7. Wiring diagrams...

  • Page 29: Outdoor Unit

    7-2. Outdoor unit ¢ Models: AOUG09LZAS1, AOUG12LZAS1, and AOUG15LZAS1 - (02-15) - 7-2. Outdoor unit 7. Wiring diagrams...
  • Page 30 8. PC board diagrams 8-1. Models: ASUG09LZAS, ASUG12LZAS, and ASUG15LZAS CONTROL UNIT ASUG09LZAS : EZ-0190EHSE ASUG12LZAS : EZ-0190FHSE ASUG15LZAS : EZ-0190GHSE 2-WIRE REMOTE CONTROL UNIT ( OPTION ) UTY-TWRXZ2 UL1007 AWG22 REMOTE CN301 CN300 UL1007 AWG22 WHITE CONTROLLER UL1061 AWG26...
  • Page 31 8-2. Models: AOUG09LZAS1, AOUG12LZAS1, and AOUG15LZAS1 INVERTER ASSEMBLY AOUG09LZAS1 : EZ-0190MHUE AOUG12LZAS1 : EZ-0190PHUE AOUG15LZAS1 : EZ-0190THUE AOUG09LZAH1 : EZ-0190RHUE AOUG12LZAH1 : EZ-0190SHUE AOUG15LZAH1 : EZ-0190WHUE EMI FILTER KRFC-13 EMI FILTER EMI FILTER 2 TURNS KRFC-13 KRFC-13 W400 2 TURNS 1 TURN UL3271 AWG16 TO INDOOR UNIT...
  • Page 32 - (02-18) - 8-2. Models: AOUG09LZAS1, AOUG12LZAS1, and AOUG15LZAS1 8. PC board diagrams...
  • Page 33 3. TROUBLESHOOTING 2020.01.30 SR_CH03_AS024EF_02...
  • Page 34 CONTENTS 3. TROUBLESHOOTING 1. Error code ....................03-1 1-1. Error code table (Indoor unit and wired remote controller)..........03-1 1-2. Error code table (Wireless LAN indicator)...............03-2 1-3. Error code table (Mobile app) ..................03-3 1-4. Error message for wireless LAN control (Mobile app).............03-5 2.
  • Page 35 CONTENTS (continued) 4-4. E: 18. Communication error..................03-55 4-5. E: 18. Wireless LAN adapter non-energized..............03-57 4-6. Wireless LAN adapter Sleep mode (Indoor unit) ............03-58 4-7. Mobile app setting method....................03-59 5. Service parts information .................03-64 5-1. Compressor........................03-64 5-2. Inverter compressor......................03-65 5-3. Outdoor unit Electronic Expansion Valve (EEV) ............03-66 5-4.

  • Page 37: Error Code

    1. Error code 1-1. 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...

  • Page 38: Error Code Table (Wireless Lan Indicator)

    1-2. Error code table (Wireless LAN indicator) • Wireless LAN control system diagram example Indoor unit Internet Controller PCB Cloud Wireless Parts: Mobile app Outdoor unit WLAN adapter (Smart device) router • Name of parts Wireless LAN adapter Wireless LAN label MAC: SSID: AP-WF PIN:...

  • Page 39: Error Code Table (Mobile App)

    1-3. Error code table (Mobile app) • Error display If there is an abnormality on the air conditioning, refer to as follows. When the (error button) on the home screen is tapped, error code and error name is displayed. – For Android Error button Error code Error Name...
  • Page 40 • Error code Error message Error contents Error code 11.1 Serial communication error E: 11. Serial communication error (Serial (Serial Reverse Transfer Error) reverse transfer error) (Outdoor unit) 11.2 11.3 Serial communication error E: 11. Serial communication error (Serial (Serial Forward Transfer Error) forward transfer error) (Indoor unit) 11.4 E: 12.

  • Page 41: Error Message For Wireless Lan Control (Mobile App)

    1-4. Error message for wireless LAN control (Mobile app) • Error display If there is an abnormality on the wireless control system, refer to error messages as follows. The error message disappears after 5 seconds and the normal screen is displayed. For Android For iOS Error message...
  • Page 42 • Error message list – For Android Registration error Error message Cause Solution Wi-Fi must be enabled to set The user has disabled Wi-Fi Enable the Wi-Fi on the smart device. up new device on the smart device. We weren’t able to sign you The smart device and air Connect the mobile device to the same onto null.
  • Page 43 General error Error message Cause Solution No connectivity to Wi-Fi or The smart device has no Connect the mobile device to the internet. the cloud. Please check your internet access. network connection. An error occurred while trying to update your profile. Please try again later.
  • Page 44 Registration error Error message Cause Solution Could not register the device. The router the air conditioner Check if the router connected to the air Make sure the device is is connected to, has no conditioner has internet access. (You can ready for registration.

  • Page 45: Troubleshooting With Error Code

    2. Troubleshooting with error code 2-1. E: 11. Serial communication error (Serial reverse transfer error) (Outdoor unit) Operation indicator 1 time flash Timer indicator 1 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 11 Main PCB When the indoor unit cannot receive the serial signal from outdoor unit more than 2 minutes after power on, Detective actuator...
  • Page 46 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 47: E: 11. Serial Communication Error (Serial Forward Transfer Error) (Indoor Unit)

    2-2. E: 11. Serial communication error (Serial forward transfer error) (Indoor unit) Operation indicator 1 time flash Timer indicator 1 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 11 Main PCB When the outdoor unit cannot receive the serial signal Detective actuator Indoor unit from indoor unit more than 10 seconds.
  • Page 48 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 49: E: 12. Wired Remote Controller Communication Error (Indoor Unit)

    2-3. E: 12. Wired remote controller communication error (Indoor unit) Operation indicator 1 time flash Timer indicator 2 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 12 Indoor unit Main PCB When the indoor unit cannot receive the signal from Detective actuator Wired remote controller more than 1 minute during Wired remote control...

  • Page 50: E: 18. External Communication Error (Indoor Unit)

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

  • Page 51: E: 32. Indoor Unit Main Pcb Error (Indoor Unit)

    2-5. 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 52: E: 35. Manual Auto Button Error (Indoor Unit)

    2-6. 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 30 or more seconds.

  • Page 53: E: 41. Room Temperature Sensor Error (Indoor Unit)

    2-7. 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 54: E: 42. Indoor Unit Heat Exchanger Sensor Error (Indoor Unit)

    2-8. 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 55: E: 51. Indoor Unit Fan Motor Error (Indoor Unit)

    2-9. 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 condition that actual frequency of indoor fan is Detective actuator Indoor unit below 1/3 of target frequency is continued more than 56...

  • Page 56: E: 58. Intake Grille Error (Indoor Unit)

    2-10. E: 58. Intake grille error (Indoor unit) Operation indicator 5 time flash Timer indicator 8 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 58 Indoor unit main PCB When the Micro switch is detected open while running Detective actuator the compressor.

  • Page 57: E: 62. Outdoor Unit Main Pcb Error (Outdoor Unit)

    2-11. 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 58: E: 63. Inverter Error (Outdoor Unit)

    2-12. E: 63. Inverter error (Outdoor unit) Operation indicator 6 time flash Timer indicator 3 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 63 Detective actuator Outdoor unit Inverter PCB Error information received from inverter PCB Forecast of cause External cause Power supply to inverter PCB wiring disconnection or...

  • Page 59: E: 64. Pfc Circuit Error (Outdoor Unit)

    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 • When inverter input DC voltage is higher than 415 V for over 3 seconds, the compressor stops. Detective actuator Outdoor unit Main PCB...

  • Page 60: E: 71. Discharge Thermistor Error (Outdoor Unit)

    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 When discharge pipe temperature thermistor open or Detective actuator short circuit is detected at power on or while running the Discharge pipe temperature...

  • Page 61: E: 73. Outdoor Unit Heat Exchanger Thermistor Error (Outdoor Unit)

    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 When heat exchanger temperature thermistor open or Detective actuator short circuit is detected at power on or while running the Heat exchanger temperature...

  • Page 62: E: 74. Outdoor Temperature Thermistor Error (Outdoor Unit)

    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 When outdoor temperature thermistor open or short Detective actuator circuit is detected at power on or while running the Outdoor temperature thermistor...

  • Page 63: E: 84. Current Sensor Error (Outdoor Unit)

    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 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 64: E: 94. Trip Detection (Outdoor Unit)

    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 65: E: 95. Compressor Motor Control Error (Outdoor Unit)

    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. When running the compressor, if the detected rotor location is out of phase with actual rotor location more than 90°, the compressor stops.

  • Page 66: E: 97. Outdoor Unit Fan Motor Error (Outdoor Unit)

    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. When outdoor fan rotation speed is less than 100 rpm in 20 seconds after fan motor starts, fan motor stops.
  • Page 67 Check point 4. Check output voltage of main PCB Check outdoor unit circuit diagram and the voltage. (Measure at main PCB side con- nector) FAN MOTOR BLACK WHITE YELLOW BROWN NOTE: For details of wiring diagram, refer to "Wiring diagrams" in Chapter 2.

  • Page 68: E: 99. 4-Way Valve Error (Outdoor Unit)

    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 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 69 Check point 3. Check the solenoid coil and 4-way valve • Solenoid coil Remove CN30 from PCB and check the resistance value of coil. Resistance value is 1.88 kΩ — 2.29 kΩ (at 68 °F (20 °C)). → If it is open or abnormal resistance value, replace solenoid coil. •...

  • Page 70: E: A1. Discharge Temperature Error (Outdoor Unit)

    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 ≥ 230 °F Detective actuator (110 °C) during compressor operation generated 2 times Discharge temperature thermistor...
  • Page 71 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. ↓ - (03-35) - 2-22. E: A1. Discharge temperature error (Outdoor unit) 2.

  • Page 72: Troubleshooting Without Error Code

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

  • Page 73: Outdoor Unit-No Power

    3-2. Outdoor unit—No power Power supply failure Forecast of cause External cause Electrical components defective Check point 1. Check installation condition • 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 74: No Operation (Power Is On)

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

  • Page 75: No Cooling/No Heating

    3-4. No cooling/No heating Indoor unit error Outdoor unit error Forecast of cause Effect by surrounding environment Connection pipe/Connection wire failure Refrigeration cycle failure Check point 1. Check Indoor unit • Does Indoor unit fan run in the HIGH mode? •...
  • Page 76 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 77: Abnormal Noise

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

  • Page 78: Water Leaking

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

  • Page 79: Too Warm

    3-7. Too warm House insulation setting has not been changed. Temperature sensing location has not been changed. Forecast of cause Installation location of the wired remote. Function settings have not been changed. Check point 1. Check insulation level of structure of house Is insulation level greater than R-13? →...
  • Page 80 Check point 6. Check the remote controller Hold down the THERMO SENSOR button until the thermo sensor icon is turned off. → If the space is still too warm, go to "Check point 7". ↓ Check point 7. Check function settings Using the table on the right adjust function 31.
  • Page 81 Check point 10. Location of the remote controller Is the mounting location of the wired remote controller affecting the temperature sensing? (Sunlight on the remote, heat source next to the remote) → If no, go to "Check point 12". ↓ Check point 11.
  • Page 82 Check point 9-1. Check function setting Change setting of function 48 (Room temperature sensor switching) to 01. NOTE: For details of function setting number 48, refer to "Function settings " in Chapter 5. FIELD WORKING on page 05-1. ↓ Check point 9-2. Check the effects of function setting change Did this function setting improve temperature control? →...

  • Page 83: Too Cool

    3-8. Too cool House insulation setting has not been changed. Temperature sensing location has not been changed. Forecast of cause Installation location of the wired remote. Function settings have not been changed. Check point 1. Check insulation level of structure of house Is insulation level greater than R-13? →...
  • Page 84 Check point 6. Check the remote controller Hold down the THERMO SENSOR button until the thermo sensor icon is turned off. → If the space is still too cool, go to "Check point 7". ↓ Check point 7. Check function settings Using the table on the right adjust function 30.
  • Page 85 Check point 10. Location of the remote controller Is the mounting location of the wired remote controller affecting the temperature sensing? (Sunlight on the remote, heat source next to the remote) → If no, go to "Check point 12". ↓ Check point 11.
  • Page 86 Check point 9-1. Check function setting Change setting of function 48 (Room temperature sensor switching) to 01. NOTE: For details of function setting number 48, refer to "Function settings " in Chapter 5. FIELD WORKING on page 05-1. ↓ Check point 9-2. Check the effects of function setting change Did this function setting improve temperature control? →...

  • Page 87: Troubleshooting With Error Code (For Wireless Lan Adapter)

    4. Troubleshooting with error code (For wireless LAN adapter) 4-1. E: 18. External communication error between indoor unit and WLAN adapter Operation indicator 1 time flash Timer indicator 8 time flash Indoor unit Economy indicator Continuous flash Indicator Error code E: 18 LED1 (green) Flashing fast...

  • Page 88: Wireless Lan Adapter Error

    4-2. Wireless LAN adapter error Operation indicator No indication Timer indicator No indication Indoor unit Economy indicator No indication Indicator Error code — LED1 (green) Flashing fast Wireless LAN adapter LED2 (orange) Flashing fast Wireless LAN adapter setting When the setting button becomes on for consecutive 60 button seconds or more.

  • Page 89: Network Communication Error Between Wireless Lan Router And Wlan Adapter

    4-3. Network communication error between wireless LAN router and WLAN adapter Operation indicator No indication Timer indicator No indication Indoor unit Economy indicator No indication Indicator Error code — LED1 (green) Wireless LAN adapter LED2 (orange) Flashing fast Wireless LAN router When the not connection between wireless LAN adapter and wireless LAN router.
  • Page 90 Check point 4. Replace wireless LAN adapter. If check point 3 do not improve the symptom, replace the wireless LAN adapter and cancel the reg- istration of air conditioner on the mobile app. After replacing the adapter, perform the pairing on the mobile app. For the method of the mobile app, refer to "Mobile app setting method"...

  • Page 91: E: 18. Communication Error

    4-4. E: 18. Communication error Operation indicator 1 time flash Timer indicator 8 time flash Indoor unit Economy indicator Continuous flash Indicator Error code E: 18 LED1 (green) Flashing fast Wireless LAN adapter LED2 (orange) Flashing fast Wireless LAN router When the external communication error between indoor unit and WLAN adapter and network communication Wireless LAN adapter PCB...
  • Page 92 Check point 3-1. Turn on the power again of air conditioner. If check point 1 to 2 do not improve the symptom, turn on the power of the air conditioner again and wait for 60 seconds. -> When the flashing pattern of the LED 2 (orange) is on, go to "Check point 3-2".

  • Page 93: E: 18. Wireless Lan Adapter Non-Energized

    4-5. E: 18. Wireless LAN adapter non-energized Operation indicator 1 time flash Timer indicator 8 time flash Indoor unit Economy indicator Continuous flash Indicator Error code E: 18 LED1 (green) Wireless LAN adapter LED2 (orange) Indoor unit controller PCB When the voltage (DC 12 V) does not output from the Detective actuator controller PCB.

  • Page 94: Wireless Lan Adapter Sleep Mode (Indoor Unit)

    4-6. Wireless LAN adapter Sleep mode (Indoor unit) Operation indicator No indication Timer indicator No indication Indoor unit Economy indicator No indication Indicator Error code — LED1 (green) Wireless LAN adapter LED2 (orange) When the state in which fly a wireless(SSID) have Detective actuator Sleep mode passed 1 hour.

  • Page 95: Mobile App Setting Method

    4-7. Mobile app setting method ¢ Air conditioner deregistration method When the wireless LAN adapter is replaced, deregistration of all air conditioner is necessary on the mobile app. Launch the mobile app. FGL air Press and hold the registered device name of the air conditioner. If the Unregister button is displayed, tap the button.
  • Page 96 ¢ Air conditioner registration pairing method Choose the following modes to connect the air conditioner to the wireless LAN router. NOTES: • Before starting this setting, wait for 60 seconds or more after the power supply is connected to the air conditioner (via breaker or plug). •...
  • Page 97 Confirm LED 2 is flashing (On/Off at 2 seconds intervals). Then press and hold the setting but- ton on the wireless LAN adapter for 3 seconds. on/off: 2 sec/2 sec on/off: 2 sec/0.5 sec LED 2 lighting will change. (On/Off: 2 sec./2 sec. → 2 sec./0.5 sec.) Confirm both of the LED 1 and 2 are on to proceed.
  • Page 98  Manual mode (For Android) Launch the mobile app. FGL air Sign in with your E-mail address and password following the screen on the mobile app. john@fgl.com Sign in Press the + button to add a new air conditioner. Select manual mode. Button mode Manual mode If both of the LED 1 and 2 are off, push the setting button once.
  • Page 99  Manual mode (For iOS) Launch the mobile app. FGL air Sign in with your E-mail address and password following the screen on the mobile app. john@fgl.com Sign in Press the + button to add a new air conditioner. Select manual mode. Button mode Manual mode If both of the LED 1 and 2 are off, push the setting button once.

  • Page 100: Service Parts Information

    5. Service parts information 5-1. 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 101: Inverter Compressor

    5-2. Inverter compressor Check point 1. Check connection Check terminal connection of compressor. (loose or incorrect wiring) Terminal cover opened T(W) (BLACK) S(V) R(U) (WHITE) (RED) ↓ Check point 2. Check winding resistance Check winding resistance of each terminal. Resistance value: 1.916 Ω at 68 °F (20°C) →...

  • Page 102: Outdoor Unit Electronic Expansion Valve (Eev)

    5-3. 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 "Wiring diagrams" in Chapter 2. TECHNICAL DATA AND PARTS LIST on page 02-14. Check point 2.
  • Page 103 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 104: Indoor Unit Fan Motor

    5-4. 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 105: Outdoor Unit Fan Motor

    5-5. 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 106: Thermistor Resistance Values

    6. Thermistor resistance values 6-1. Indoor unit ¢ Room temperature thermistor Temperature °F (°C) Resistance (kΩ) Voltage (V) 14.0 (-10.0) 58.25 0.73 23.0 (-5.0) 44.03 0.93 32.0 (0.0) 33.62 1.15 41.0 (5.0) 25.93 1.39 50.0 (10.0) 20.18 1.66 59.0 (15.0) 15.84 1.94 68.0 (20.0)

  • Page 107: Outdoor Unit

    6-2. Outdoor unit ¢ Discharge temperature thermistor Temperature °F (°C) Resistance (kΩ) Voltage (V) -22.0 (-30.0) 1,013.11 0.06 -12.0 (-25.0) 729.09 0.09 -4.0 (-20.0) 531.56 0.12 5.0 (-15.0) 392.31 0.16 14.0 (-10.0) 292.91 0.21 23.0 (-5.0) 221.09 0.28 32.0 (0.0) 168.60 0.36 41.0 (5.0)
  • Page 108 ¢ Compressor temperature thermistor Temperature °F (°C) Resistance (kΩ) Voltage (V) -22.0 (-30.0) 1,013.11 0.06 -12.0 (-25.0) 729.09 0.09 -4.0 (-20.0) 531.56 0.12 5.0 (-15.0) 392.31 0.16 14.0 (-10.0) 292.91 0.21 23.0 (-5.0) 221.09 0.28 32.0 (0.0) 168.60 0.36 41.0 (5.0) 129.84 0.46 50.0 (10.0)
  • Page 109 ¢ Heat exchanger temperature thermistor Temperature °F (°C) Resistance (kΩ) Voltage (V) -22.0 (-30.0) 95.58 0.24 -12.0 (-25.0) 68.90 0.32 -4.0 (-20.0) 50.31 0.43 5.0 (-15.0) 37.19 0.57 14.0 (-10.0) 27.81 0.73 23.0 (-5.0) 21.02 0.92 32.0 (0.0) 16.05 1.14 41.0 (5.0) 12.38 1.39...
  • Page 110 - (03-74) - 6-2. Outdoor unit 6. Thermistor resistance values...
  • Page 111 4. CONTROL AND FUNCTIONS 2020.02.26 SR_CH04_AS024EF_01...
  • Page 112 CONTENTS 4. CONTROL AND FUNCTIONS 1. Compressor frequency control..............04-1 1-1. Cooling operation ......................04-1 1-2. Heating operation ......................04-3 1-3. Dry operation ........................04-4 1-4. Compressor frequency at normal start-up ..............04-4 1-5. Compressor frequency limitation by outdoor temperature ..........04-5 2. Auto changeover operation................04-7 3.

  • Page 113: Compressor Frequency Control

    • Compressor frequency range Model name Minimum frequency Maximum frequency ASUG09LZAS 8 rps 58 rps ASUG12LZAS 8 rps 74 rps...
  • Page 114 Unit: rps Outdoor Indoor unit fan mode Model name temperature HIGH QUIET zone A zone B zone C zone ASUG09LZAS D zone E zone F zone A zone B zone C zone ASUG12LZAS D zone E zone F zone A zone...

  • Page 115: Heating Operation

    • Compressor frequency range Unit: rps Model name Minimum frequency Maximum frequency ASUG09LZAS ASUG12LZAS ASUG15LZAS • Limit of maximum speed based on outdoor temperature In heating operation, maximum frequency is defined by outdoor temperature and fan mode. Outdoor...

  • Page 116: Dry Operation

    Zone is defined by set temperature and room temperature. • Compressor frequency range Unit: rps Model name Outdoor temperature zone Operating frequency X zone ASUG09LZAS J zone ASUG12LZAS Y zone X zone ASUG15LZAS J zone Y zone •...

  • Page 117: Compressor Frequency Limitation By Outdoor Temperature

    1-5. Compressor frequency limitation by outdoor temperature The minimum compressor frequency 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...
  • Page 118 • 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 34 rps B zone 34 rps AOUG09LZAS1 C zone 34 rps AOUG12LZAS1 D zone...

  • Page 119: 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 120 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 121: 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 ASUG09LZAS ASUG15LZAS ASUG12LZAS POWERFUL 1,270 1,370 HIGH 1,200 1,300 MED+ 1,050...
  • Page 122 ¢ 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 123 ¢ 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 124 • 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 125: 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: AOUG09LZAS1 Fan speed is defined by outdoor temperature and compressor frequency. •...
  • Page 126  Model: AOUG12LZAS1 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 127  Model: AOUG15LZAS1 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 128: 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 129: 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 130: 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 131 ¢ 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 132: 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 133 ¢ 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 134 ¢ 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 135: 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 136: 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 137: 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 138: 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 139: 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 140: Prevention To Restart For 3 Minutes (3 Minutes St)

    7-9. Prevention to restart for 3 minutes (3 minutes st) When the compressor fails to start for the number of times below, it does not enter operation status for 3 minutes. Retry number Retry set number When the compressor fails to start in the retry set number above, the compressor is stopped. 7-10.

  • Page 141: 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 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 142: Current Release Control

    8-3. Current release control The compressor frequency is controlled so that the outdoor unit input current does not exceeds cur- rent limit value set according to the outdoor temperature. The compressor frequency returns according to the operation mode, when the current becomes low- er than the release value.

  • Page 143: High Temperature And High Pressure Release Control

    8-6. High temperature and high pressure release control The compressor is controlled as follows. ¢ Models: AOUG09LZAS1, AOUG12LZAS1, and AOUG15LZAS1 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...
  • Page 144 - (04-32) - 8-6. High temperature and high pressure release control 8. Various protections...
  • Page 145 5. FILED WORKING 2020.02.03 SR_CH05_AS024EF_01...
  • Page 146 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 ............05-9 1-3. Switching the temperature unit of remote controller............05-10 2. External input and output.................05-11 2-1. External input........................05-12 2-2.

  • Page 147: 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 148 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 149 ¢ 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 150 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 151 4) Room temperature control for wired remote controller sensor NOTE: Before performing this setting, refer to Function 95. 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”.
  • Page 152 7) 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 ♦ 8) External input control "Operation/Stop" mode or "Forced stop" mode can be selected. Function number Setting value Setting description...
  • Page 153 11) Control switching of external heaters Sets the control method for external heater to be used. For details, refer to "External heater output" on page 05-20. Function Factory Setting value Setting description number setting Auxiliary heater control 1 ♦ Auxiliary heater control 2 Heat pump prohibition control Auxiliary heater control by outdoor temperature 1 Auxiliary heater control by outdoor temperature 2...
  • Page 154 14) Outdoor temperature zone boundary temperature B Setting required if changing of the outdoor temperature setting for heat pump only zone is required when auxiliary heater control by outdoor temperature 1 is performed on the indoor unit. For details, refer to "External heater output"...

  • Page 155: 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 156: Switching The Temperature Unit Of Remote Controller

    1-3. Switching the temperature unit of remote controller Displayed temperature unit on the remote controller LCD can be switched between °F (Fahrenheit) and °C (Celsius). To change temperature unit, do as follows: Press the TEMP. (Up) button ( ) for at least 5 seconds to display the current temperature unit. (Factory setting: °F) Press the TEMP.

  • Page 157: External Input And Output

    2. External input and output External input and output PCB SW301 SW302 Rotary switch CN314 CN313 CN312 CN311 CN310 CN308 To CN6 on Indoor unit PCB External input External output Connector Input select Input signal Operation/Stop CN313/ Edge/Pulse Dry contact/ CN314 Forced stop —...

  • Page 158: 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 (22AWG) should be used. Maximum length of cable is 492 ft (150 m). •...

  • Page 159: 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. ¢ External input and output PCB • A twisted pair cable (22AWG) should be used. Maximum length of cable is 82 ft (25 m). •...

  • Page 160: Combination Of External Input And Output

    2-3. Combination of external input and output By combining the function setting of the 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 External input and output PCB...

  • Page 161: 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 162 • 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 163 • 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 164 • Forced thermostat off function Rotary SW on External External input Input signal Command input and output PCB Off → On Thermostat off External input and output PCB CN313 On → Off Normal operation Input Compressor Room temp. Set temp. - (05-18) - 2-4.
  • Page 165 ¢ Control output function • Operation/Stop status Rotary SW on External Output External output Command input and output PCB signal Off → On Operation External input and output PCB CN310 On → Off Stop The output is low when the unit is stopped. Operation Indoor unit Stop...
  • Page 166 • External heater output Rotary SW on External Output External output Command input and output PCB signal Off → On Heater on External input and output PCB CN312 On → Off Heater off - (05-20) - 2-4. Details of function 2.
  • Page 167 • Design and install external heater appropriately with considering its protection. • Inappropriate designing and installation of external heater may cause a fire by emitted heat from the external heater. • Fujitsu General Ltd. is not responsible for inappropriate designing or installation of external heating device. - (05-21) - 2-4.
  • Page 168  Auxiliary heater control 1 Operation Condition Heater on Heater is on as shown in following diagram of heating temperature. • Heater is off as shown in following diagram of heating temperature. • Other than heating mode Heater off • Error occurred •...
  • Page 169  Heat pump prohibition control Perform heating by external heater only. Indoor unit is continuous thermostat off. Operation Condition Heater on Heater is on as shown in following diagram of heating temperature. • Heater is off as shown in following diagram of heating temperature. •...
  • Page 170  Auxiliary heater control by outdoor temperature 1 This control selects heat pump or external heater according to the outdoor temperature. When out- door temperature is high, the heating is performed by using heat pump only. Operation Condition Heater on Heater is on as shown in following diagram of heating temperature.
  • Page 171 • Operation status 46.4°F (8°C) 42.8°F (6°C) Outdoor temperature (Factory setting) -0.4°F (-18°C) -4°F (-20°C) Heat pump Heat pump Combination zone prohibition only zone Outdoor temperature zone * zone Comp. On/Off 12 V Heater * The outdoor temperature zone transition from one to another will stay in that zone for minimum of 30 min. NOTE: In following operations, compressor will be on in heat pump prohibition zone.
  • Page 172  Auxiliary heater control by outdoor temperature 2 This control selects heat pump or external heater according to the outdoor temperature. Even when outdoor temperature is high, the heating is performed by using both of heat pump and external heater. Operation Condition Heater on...
  • Page 173 • Operation status 46.4°F (8°C) 42.8°F (6°C) Outdoor temperature (Factory setting) -0.4°F (-18°C) -4°F (-20°C) Heat pump Combination zone Outdoor temperature zone * prohibition zone Comp. On/Off 12 V Heater * The outdoor temperature zone transition from one to another will stay in that zone for minimum of 30 min. NOTE: In following operations, compressor will be on in heat pump prohibition zone.

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