Fujitsu ADUH09LUAS1 Service Manual
  1. Manuals
  2. Brands
  3. Fujitsu Manuals
  4. Air Conditioner
  5. ADUH09LUAS1
  6. Service manual

Fujitsu ADUH09LUAS1 Service Manual

Hide thumbs Also See for ADUH09LUAS1:
Table of Contents

Advertisement

Quick Links

AIR CONDITIONER
Duct type
INDOOR
OUTDOOR
SERVICE MANUAL
ADUH09LUAS1
ADUH12LUAS1
AOUH09LUAS1
ADUH18LUAS1
AOUH12LUAS1
AOUH18LUAS1
SR_AR030EF_02
2021.04.26

Advertisement

Table of Contents
loading

Related Manuals for Fujitsu ADUH09LUAS1

Summary of Contents for Fujitsu ADUH09LUAS1

  • Page 1 AIR CONDITIONER Duct type SERVICE MANUAL INDOOR ADUH09LUAS1 ADUH18LUAS1 ADUH12LUAS1 OUTDOOR AOUH09LUAS1 AOUH12LUAS1 AOUH18LUAS1 SR_AR030EF_02 2021.04.26...
  • 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 2021.04.02 SR_CH01_AR030EF_01...
  • 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........................01-8...
  • Page 7 1. Specifications 1-1. Indoor unit Duct Type Inverter heat pump Model name ADUH09LUAS1 ADUH12LUAS1 ADUH18LUAS1 Power supply 208/230 V ~ 60 Hz Available voltage range 187—253 V k→ 2.64 3.52 5.02 Rated Btu/h 9,000 12,000 17,100 Cooling k→ 0.90—3.20 0.90—4.00 0.90—5.90...
  • Page 8 Duct Type Inverter heat pump Model name ADUH09LUAS1 ADUH12LUAS1 ADUH18LUAS1 NOTES: • Specifications are based on the following conditions: – Cooling: Indoor temperature of 80 °FDB/67 °F→B(26.67 °CDB/19.44 °C→B), and outdoor temperature of 95 °FDB/75 °F→B (35 °CDB/23.9 °C→B). – Heating: Indoor temperature of 70 °FDB/59 °F→B (21.11 °CDB/15 °C→B), and outdoor temperature of 47 °FDB /43 °F→B (8.33 °CDB/6.11°C→B).
  • Page 9 1-2. Outdoor unit Type Inverter heat pump Model name AOUH09LUAS1 AOUH12LUAS1 AOUH18LUAS1 Power supply 208/230 V ~ 60 Hz Power supply intake Outdoor unit Available voltage range 187—253 V Starting current Cooling 1,171 (1,990) 1,395 (2,370) Airflow rate 906 (1,540) CFM (m Heating 1,089 (1,850)
  • Page 10 2. Dimensions 2-1. Indoor unit ¢ Models: ADUH09LUAS1 and ADUH12LUAS1 Unit: in (mm) 22-5/8 (574) 2 (51) View A Rear view Drain port 3-15/16 (100) x 6 = 23-5/8 (600) 1-7/8 (47) 25-9/16 (650) 2-3/16 (55) 3-1/16 (78) 28-7/8 (734)
  • Page 11 ¢ Model: ADUH18LUAS1 Unit: in (mm) 2 (51) 30-1/2 (774) Rear view View A Drain port 1-7/8 (47) 3-15/16 (100) × 8 = 31-1/2 (800) 2-3/16 (55) 33-7/16 (850) 3-1/16 (78) 36-3/4 (934) 3-7/16 3-1/2 (89) (87) 4-11/16 (119) Top view 2-3/16 6-7/16 (56)
  • Page 12 ¢ Installation space requirement Provide sufficient installation space for product safety. In ceiling-concealed installations: Unit: in (mm) 12 (300) or more Strong and durable ceiling 1 (20) or more Indoor unit Left Right side side 1 (20) or more 16 (400) 6 (150) Service access Ceiling...
  • Page 13 ¢ Maintenance space requirement For future maintenance and service access, provide sufficient maintenance space. NOTE: Do not place any wiring or illumination in the maintenance space, as they will impede ser- vice. Unit: in (mm) Service access Unit Control 12 (300) or more Service space - (01-7) -...
  • Page 14 2-2. Outdoor unit ¢ Models: AOUH09LUAS1 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 Hole...
  • Page 15 ¢ Models: AOUH12LUAS1 and AOUH18LUAS1 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 Hole Hole...
  • Page 16 - (01-10) - 2-2. Outdoor unit 2. Dimensions...
  • Page 17 2. TECHNICAL DATA AND PARTS LIST 2021.04.02 SR_CH02_AR030EF_01...
  • Page 18 CONTENTS 2. TECHNICAL DATA AND PARTS LIST 1. Precautions....................02-1 2. Indoor unit parts list..................02-2 2-1. Models: ADUH09LUAS1 and ADUH12LUAS1 ...............02-2 2-2. Model: ADUH18LUAS1 ....................02-6 3. Outdoor unit parts list................02-10 3-1. Model: AOUH09LUAS1 ....................02-10 3-2. Models: AOUH12LUAS1 and AOUH18LUAS1.............02-14 4. Accessories ....................02-18 4-1.
  • Page 19 • 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 20 2. Indoor unit parts list 2-1. Models: ADUH09LUAS1 and ADUH12LUAS1 ¢ Exterior parts and chassis - (02-2) - 2-1. Models: ADUH09LUAS1 and ADUH12LUAS1 2. Indoor unit parts list...
  • Page 21 →indow panel sub assy ♦ 9380589006 Fan guard (2-fan) ♦ 9379897006 Air filter sub assy ♦ 9379906012 Side panel R sub assy ♦ 9379901161 Drain pan sub assy ♦ - (02-3) - 2-1. Models: ADUH09LUAS1 and ADUH12LUAS1 2. Indoor unit parts list...
  • Page 22 ¢ Fan and PC boards - (02-4) - 2-1. Models: ADUH09LUAS1 and ADUH12LUAS1 2. Indoor unit parts list...
  • Page 23 (CN261 on Main PCB—CN263 on Power supply PCB) →ire with connector — 9710343094 ♦ (CN300 on Main PCB—Terminal 5P [Remote]) →ire with connector — 9710703010 ♦ (CN205 on Power supply PCB—Terminal 3P) - (02-5) - 2-1. Models: ADUH09LUAS1 and ADUH12LUAS1 2. Indoor unit parts list...
  • Page 24 2-2. Model: ADUH18LUAS1 ¢ External parts and chassis - (02-6) - 2-2. Model: ADUH18LUAS1 2. Indoor unit parts list...
  • Page 25 Item no. Part no. Part name Service part 9380598008 Cabinet panel (3-fan) ♦ 9380603016 Main panel (3-fan) ♦ 9380042013 Outlet frame assy ♦ 9380595007 Front panel (3-fan) ♦ 9380682592 Evaporator total assy ♦ 9379576017 Valve cover sub assy ♦ 9379900003 Pipe panel sub assy ♦...
  • Page 26 ¢ Fan and PC boards - (02-8) - 2-2. Model: ADUH18LUAS1 2. Indoor unit parts list...
  • Page 27 Item no. Part no. Part name Service part 9379572019 Casing B ♦ 9379570022 Sirocco fan assy ♦ 9378593039 Float switch sub assy ♦ 9379913003 Drain hose assy ♦ 9378450141 Hose sub assy ♦ 9379914062 Drain pump sub assy ♦ 9711875082 Main PCB ♦...
  • Page 28 3. Outdoor unit parts list 3-1. Model: AOUH09LUAS1 ¢ Exterior parts and chassis - (02-10) - 3-1. Model: AOUH09LUAS1 3. Outdoor unit parts list...
  • Page 29 Item no. Part no. Part name Service part 9323834132 Heat exchanger unit ♦ 9377840004 Protective net ♦ 9322556028 Top panel assy ♦ 9322138002 Thermistor holder ♦ 9900984014 Thermistor (Heat exchanger) ♦ 313728262708 Thermistor spring A ♦ 9300089012 Thermistor spring ♦ 9900935047 Thermistor assy (Discharge temp.) ♦...
  • Page 30 ¢ Compressor - (02-12) - 3-1. Model: AOUH09LUAS1 3. Outdoor unit parts list...
  • Page 31 Item no. Part no. Part name Service part 9323825192 Compressor unit ♦ 9322444011 4-way valve assy ♦ 9970110160 Solenoid ♦ 9970173028 Expansion valve coil ♦ 9322463029 Pulse motor valve assy ♦ 9322474001 2-way valve assy ♦ 9322475008 3-way valve assy ♦...
  • Page 32 3-2. Models: AOUH12LUAS1 and AOUH18LUAS1 ¢ Exterior parts and chassis - (02-14) - 3-2. Models: AOUH12LUAS1 and AOUH18LUAS1 3. Outdoor unit parts list...
  • Page 33 Item no. Part no. Part name Service part 9323834194 Heat exchanger unit (12 model) ♦ 9323834330 Heat exchanger unit (18 model) ♦ 9377854001 Protective net assy ♦ 9322556028 Top panel assy ♦ 9322327000 Thermistor holder ♦ 9900984014 Thermistor (Heat exchanger) ♦...
  • Page 34 ¢ Compressor - (02-16) - 3-2. Models: AOUH12LUAS1 and AOUH18LUAS1 3. Outdoor unit parts list...
  • Page 35 Item no. Part no. Part name Service part 9323825208 Compressor unit (12 model) ♦ 9323825215 Compressor unit (18 model) ♦ 9322446015 4-way valve assy ♦ 9970194023 Solenoid ♦ 9970173028 Expansion valve coil ♦ 9322463029 Pulse motor valve assy ♦ 9322474001 2-way valve assy ♦...
  • Page 36 4. Accessories 4-1. Indoor unit ¢ Models: ADUH09LUAS1, ADUH12LUAS1, and ADUH18LUAS1 Part name Exterior Q’ty Part name Exterior Q’ty Operating manual Cable tie (large) Installation manual Cable tie (medium) Filter (small) Installation template [For 09/12 models] Filter (large) →asher [For 18 models]...
  • Page 37 5. Optional parts 5-1. Indoor unit ¢ Controllers Exterior Part name Model name Summary Easy finger touch operation with LCD Office Fri 10:00AM Mode Set Temp. →ired remote panel. Backlit LCD enables easy Cool 80°F Custom Auto UTY-RNRUZ* Auto 74°F Heat controller operation in a dark room.
  • Page 38 ¢ Others Exterior Part name Model name Summary Thermo-sensor for sensing the Remote sensor UTY-↓SZ↓ temperature of arbitrary place in the unit room. →idth: 683 mm Auto louver UTD-G↓TA-→ For 09 and 12 model grille kit →idth: 883 mm Auto louver UTD-G↓TB-→...
  • Page 39 Model name Summary For connection between indoor unit KN↓ converter UTY-VKS↓ with UART interface and a KN↓ open network. This converter can control Fujitsu Thermostat UTY-TTR↓ General products using a third-party converter thermostat controller. Air conditioner switching can be External switch UTY-TER↓...
  • Page 40 6. Refrigerant system diagrams 6-1. Models: AOUH09LUAS1 Heat exchanger 3-way (INDOOR) valve 2-way Muffler valve Muffler 4-way valve Strainer Expansion valve Heat exchanger Strainer (OUTDOOR) Cooling Heating : Thermistor (Discharge temperature) : Thermistor (Outdoor temperature) : Thermistor (Heat exchanger out temperature) : Thermistor (Heat exchanger middle temperature) : Thermistor (Room temperature) : Thermistor (Pipe temperature)
  • Page 41 6-2. Models: AOUH12LUAS1 and AOUH18LUAS1 Heat exchanger 3-way (INDOOR) valve 2-way Muffler valve Muffler 4-way valve Strainer Expansion valve Accumulator Heat exchanger Strainer (OUTDOOR) Cooling Heating : Thermistor (Compressor temperature) : Thermistor (Discharge temperature) : Thermistor (Outdoor temperature) : Thermistor (Heat exchanger middle temperature) : Thermistor (Heat exchanger out temperature) : Thermistor (Room temperature) : Thermistor (Pipe temperature)
  • Page 42 7. Wiring diagrams 7-1. Indoor unit ¢ Models: ADUH09LUAS1, ADUH12LUAS1, and ADUH18LUAS1 - (02-24) - 7-1. Indoor unit 7. →iring diagrams...
  • Page 43 7-2. Outdoor unit ¢ Model: AOUH09LUAS1 - (02-25) - 7-2. Outdoor unit 7. →iring diagrams...
  • Page 44 ¢ Models: AOUH12LUAS1 and AOUH18LUAS1 - (02-26) - 7-2. Outdoor unit 7. →iring diagrams...
  • Page 45 8. PC board diagrams 8-1. Models: ADUH09LUAS1, ADUH12LUAS1, and ADUH18LUAS1 CONTROL UNIT 09 model : EZ-02016HSE CN8 Thermistor Characteristics. 12 model : EZ-02017HSE Temperature ( 32  ) ( 68  ) ( 86  ) 18 model : EZ-02018HSE Thermistor 33.62 k 12.54 k 8.04 k Thermistor ( Room temp. ) DC5V-1 1.15 V...
  • Page 46 8-2. Models: AOUH09LUAS1 INVERTER ASSEMBLY 09 model : EZ-0200WHUE EMI FILTER TR-28-16-13 3 TURNS UL3271 AWG16 W400 REACTOR UL3271 AWG16 13mH 8A W401 WHITE WHITE COMPRESSOR UL3271 EMI FILTER EMI FILTER AWG16 Winding Resistance GRFC-8 GRFC-8 W402 BLACK BLACK TO INDOOR UNIT 1 TURN 1 TURN UL1015...
  • Page 47 8-3. Models: AOUH12LUAS1 and AOUH18LUAS1 INVERTER ASSEMBLY 12 model : EZ-0200HHUE 18 model : EZ-0200YHUE EMI FILTER KRFC-13 2 TURNS UL3271 AWG16 W400 UL3271 AWG16 W401 WHITE WHITE COMPRESSOR UL3271 EMI FILTER EMI FILTER AWG16 Winding Resistance KRFC-13 KRFC-13 W402 BLACK BLACK TO INDOOR UNIT...
  • Page 48 - (02-30) - 8-3. Models: AOUH12LUAS1 and AOUH18LUAS1 8. PC board diagrams...
  • Page 49 3. TROUBLESHOOTING 2021.04.26 SR_CH03_AR030EF_01...
  • Page 50 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 (→ired 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 51: Table Of Contents

    CONTENTS (continued) 4-1. Compressor........................03-43 4-2. Inverter compressor......................03-44 4-3. Outdoor unit Electronic Expansion Valve (EEV) ............03-47 4-4. Indoor unit fan motor ....................03-49 4-5. Outdoor unit fan motor....................03-50 4-6. IPM on transistor PCB ....................03-52 5. Thermistor resistance values..............03-54 5-1. Indoor unit ........................03-54 5-2.
  • Page 53 1. Error code →hen a problem occurs in the system or the connected device, the error content is notified by dis- playing the code. NOTE: This function is only available in a system with indoor or IR receiver units equipped with LED lamps to indicate the error content.
  • Page 54 1-3. Error code table (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. Wired remote Error contents controller display E: 11. Serial communication error (Serial reverse transfer error) (Outdoor unit) E: 11.

  • Page 55: E: 11. Serial Communication Error (Serial Reverse Transfer Error) (Outdoor Unit)

    2. Troubleshooting with error code 2-1. E: 11. Serial communication error (Serial reverse transfer error) (Outdoor unit) →ired remote Indicator Error code E: 11 controller Main PCB →hen the indoor unit cannot receive the serial signal from outdoor unit more than 2 minutes after power on, Detective actuator Outdoor unit or the indoor unit cannot receive the serial signal more...
  • Page 56 Check point 4. Check serial signal (Reverse transfer signal) Check serial signal (Reverse transfer signal) BLACK WHITE BLACK WHITE • Check if indicated value swings between AC 90 V and AC 270 V at the outdoor unit terminal 1 —3. •...

  • Page 57: E: 11. Serial Communication Error (Serial Forward Transfer Error) (Indoor Unit)

    2-2. E: 11. Serial communication error (Serial forward transfer error) (Indoor unit) →ired remote Indicator Error code E: 11 controller 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. Outdoor unit Main PCB Connection failure...
  • Page 58 Check point 4. Check serial signal (Forward transfer signal) Check serial signal (Forward transfer signal) BLACK WHITE BLACK WHITE • 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. Check point 1-2.

  • Page 59: E: 12. →Ired Remote Controller Communication Error (Indoor Unit)

    2-3. E: 12. Wired remote controller communication error (Indoor unit) →ired remote Indicator Error code E: 12 controller Indoor unit Main PCB →hen the indoor unit cannot receive the signal from wired remote controller more than following time during normal operation. Detective actuator →ired remote control •...

  • Page 60: E: 18. External Communication Error (Indoor Unit)

    2-4. E: 18. External communication error (Indoor unit) →ired remote Indicator Error code E: 18 controller 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 error 15 seconds.

  • Page 61: E: 23. Combination Error (Outdoor Unit)

    2-5. E: 23. Combination error (Outdoor unit) →ired remote Indicator Error code E: 23 controller • The outdoor unit receives the serial signal of applied refrigerant information from indoor unit. Detective actuator Indoor unit (→hen the refrigerant type is R410A) •...

  • Page 62: E: 26. Address Setting Error In Wired Remote Controller (Indoor Unit)

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

  • Page 63: E: 29. Connected Unit Number Error (Indoor Unit)

    2-7. E: 29. Connected unit number error (Indoor unit) →ired remote Indicator Error code E: 29 controller →ired remote controller (2-wire) →hen the number of the connected indoor unit exceeds Detective actuator the limitation. Indoor unit main PCB →rong wiring of indoor unit or remote controller Number of indoor unit or remote controller in remote Forecast of cause controller group...

  • Page 64: E: 32. Indoor Unit Main Pcb Error (Indoor Unit)

    2-8. E: 32. Indoor unit main PCB error (Indoor unit) →ired remote Indicator Error code E: 32 controller →hen power is on and there is some below case. Detective actuator Indoor unit main PCB 1. →hen model information of EEPROM is incorrect. 2.

  • Page 65: E: 33. Indoor Unit Motor Electricity Consumption Detection Error (Indoor Unit)

    2-9. E: 33. Indoor unit motor electricity consumption detection error (Indoor unit) →ired remote Indicator Error code E: 33 controller Indoor unit motor electricity →hen the voltage value or the current value of the motor Detective actuator consumption detection go beyond the limits Fan motor failure Forecast of cause Main PCB failure...

  • Page 66: E: 39. Indoor Unit Power Supply Error For Fan Motor (Indoor Unit)

    2-10. E: 39. Indoor unit power supply error for fan motor (Indoor unit) →ired remote Indicator Error code E: 39 controller • →hen a momentary power cut off Detective actuator Indoor unit main PCB • →hen do not start fan motor External cause Forecast of cause Connector connection failure...
  • Page 67 2-11. E: 3A. Indoor unit communication circuit (wired remote controller) error →ired remote Indicator Error code E: 3A controller →ired remote controller (2-wire) Detect the communication error of microcomputer and Detective actuator communication PCB. Indoor unit controller PCB circuit Communication PCB defective Forecast of cause Indoor unit main PCB defective Check point 1.

  • Page 68: E: 41. Room Temperature Sensor Error (Indoor Unit)

    2-12. E: 41. Room temperature sensor error (Indoor unit) →ired remote Indicator Error code E: 41 controller Indoor unit main PCB Room temperature thermistor is open or short is Detective actuator detected always. Room temperature thermistor Connector failure Forecast of cause Thermistor failure Main PCB failure Check point 1.

  • Page 69: E: 42. Indoor Unit Heat Exchanger Sensor Error (Indoor Unit)

    2-13. E: 42. Indoor unit heat exchanger sensor error (Indoor unit) →ired remote Indicator Error code E: 42 controller Indoor unit main PCB →hen heat exchanger temperature thermistor open or Detective actuator Heat exchanger temperature short circuit is detected. thermistor Connector connection failure Forecast of cause Thermistor failure...

  • Page 70: E: 51. Indoor Unit Fan Motor Error (Indoor Unit)

    2-14. E: 51. Indoor unit fan motor error (Indoor unit) →ired remote Indicator Error code E: 51 controller main PCB →hen the condition that actual frequency of indoor fan is Detective actuator Indoor unit below 1/3 of target frequency is continued more than 56 Fan motor seconds.

  • Page 71: E: 53. Drain Pump Error (Indoor Unit)

    2-15. E: 53. Drain pump error (Indoor unit) →ired remote Indicator Error code E: 53 controller Indoor unit main PCB Detective actuator →hen Float switch is ON for more than 3 minutes. Float switch Float switch failure Shorted connector/wire failure Forecast of cause Main PCB failure Drain pump failure...

  • Page 72: E: 62. Outdoor Unit Main Pcb Error (Outdoor Unit)

    2-16. E: 62. Outdoor unit main PCB error (Outdoor unit) →ired remote Indicator Error code E: 62 controller Access to EEPROM failed due to some cause after Detective actuator Outdoor unit Main PCB outdoor unit started. External cause (Noise, temporary open, voltage drop) Forecast of cause Main PCB failure Check point 1.

  • Page 73: E: 63. Inverter Error (Outdoor Unit)

    2-17. E: 63. Inverter error (Outdoor unit) →ired remote Indicator Error code E: 63 controller 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 open Inverter PCB failure Check point 1.

  • Page 74: E: 64. Pfc Circuit Error (Outdoor Unit)

    2-18. E: 64. PFC circuit error (Outdoor unit) →ired remote Indicator Error code E: 64 controller • →hen inverter input DC voltage is higher than 415 V for over 3 seconds, the compressor stops. Detective actuator Outdoor unit Main PCB •...

  • Page 75: E: 65. Ipm Error (Outdoor Unit)

    2-19. E: 65. IPM error (Outdoor unit) →ired remote Indicator Error code E: 65 controller Main PCB 1. →hen more than normal operating current to IPM in main PCB flows, the compressor stops. 2. After the compressor restarts, if the same operation Detective actuator Outdoor unit is repeated within 40 seconds, the compressor...
  • Page 76 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. - (03-24) - 2-19. E: 65. IPM error (Outdoor unit) 2.

  • Page 77: E: 71. Discharge Thermistor Error (Outdoor Unit)

    2-20. E: 71. Discharge thermistor error (Outdoor unit) →ired remote Indicator Error code E: 71 controller 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 compressor thermistor...

  • Page 78: E: 73. Outdoor Unit Heat Exchanger Thermistor Error (Outdoor Unit)

    2-21. E: 73. Outdoor unit heat exchanger thermistor error (Outdoor unit) →ired remote Indicator Error code E: 73 controller 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 compressor thermistor...

  • Page 79: E: 74. Outdoor Temperature Thermistor Error (Outdoor Unit)

    2-22. E: 74. Outdoor temperature thermistor error (Outdoor unit) →ired remote Indicator Error code E: 74 controller 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 compressor Connector failure...

  • Page 80: E: 84. Current Sensor Error (Outdoor Unit)

    2-23. E: 84. Current sensor error (Outdoor unit) →ired remote Indicator Error code E: 84 controller →hen input current sensor has detected 0 A, while inverter compressor is operating at higher than 56 rps, Detective actuator Outdoor unit main PCB after 1 minute upon starting the compressor.

  • Page 81: E: 94. Trip Detection (Outdoor Unit)

    2-24. E: 94. Trip detection (Outdoor unit) →ired remote Indicator Error code E: 94 controller Main PCB Protection stop by over-current generation after inverter compressor start processing completed generated consecutively 10 times. Detective actuator Outdoor unit Compressor NOTE: The number of generations is reset when the compressor starts up.

  • Page 82: E: 95. Compressor Motor Control Error (Outdoor Unit)

    2-25. E: 95. Compressor motor control error (Outdoor unit) →ired remote Indicator Error code E: 95 controller 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. 2.

  • Page 83: E: 97. Outdoor Unit Fan Motor Error (Outdoor Unit)

    2-26. E: 97. Outdoor unit fan motor error (Outdoor unit) →ired remote Indicator Error code E: 97 controller Main PCB 1. →hen outdoor fan rotation speed is less than 100 rpm in 20 seconds after fan motor starts, fan motor stops.

  • Page 84: E: 99. 4-Way Valve Error (Outdoor Unit)

    2-27. E: 99. 4-way valve error (Outdoor unit) →ired remote Indicator Error code E: 99 controller 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, thermistor the compressor stops.
  • Page 85 Check point 3. Check the solenoid coil and 4-way valve Solenoid coil • Remove P60 from PCB and check the resistance value of coil. Resistance value is about 2.085 kΩ (for 09 model) or 1.97 kΩ (for 12/18 models) (at 68 °F (20 °C)). If it is open or abnormal resistance value, replace solenoid coil.
  • Page 86 2-28. E: A1. Discharge temperature error (Outdoor unit) →ired remote Indicator Error code E: A1 controller Outdoor unit main PCB Protection stop by discharge temperature ≥ 230 °F Detective actuator (110 °C) during compressor operation generated 2 times Discharge temperature thermistor within 24 hours.
  • Page 87 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) - 2-28. E: A1. Discharge temperature error (Outdoor unit) 2.
  • Page 88 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 89 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 90 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 91 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 92 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 93 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 94 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 95: Compressor

    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 96: Inverter Compressor

    4-2. Inverter compressor ¢ Model: AOUH09LUAS1 Check point 1. Check connection • Check terminal connection of compressor (loose or incorrect wiring) C (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)
  • Page 97 Check point 3. Replace inverter PCB If check point 1 to 2 do not improve the symptom, replace main PCB. - (03-45) - 4-2. Inverter compressor 4. Service parts information...
  • Page 98 ¢ Models: AOUH12LUAS1 and AOUH18LUAS1 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 ±8 % Ω...

  • Page 99: Outdoor Unit Electronic Expansion Valve (Eev)

    4-3. Outdoor unit Electronic Expansion Valve (EEV) ¢ Models: AOUH09LUAS1, AOUH12LUAS1, and AOUH18LUAS1 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 02-24.
  • Page 100 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 101: Indoor Unit Fan Motor

    4-4. Indoor unit fan motor ¢ Models: ADUH09LUAS1, ADUH12LUAS1, and ADUH18LUAS1 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.

  • Page 102: Outdoor Unit Fan Motor

    4-5. Outdoor unit fan motor ¢ Model: AOUH09LUAS1 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 103 ¢ Models: AOUH12LUAS1 and AOUH18LUAS1 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 104: Ipm On Transistor Pcb

    4-6. IPM on transistor PCB Check point 1 Disconnect the connection wires between the transistor PCB—capacitor PCB and transistor PCB—inverter PCB. Set the tester to the resistance mode, and measure the resistance between the following termi- nals. TM301 (P)—TM305 (U)/TM304 (V)/TM303 (→) TM302 (N)—TM305 (U)/TM304 (V)/TM303 (→) Judge the result of 2 as follows: Terminal...
  • Page 105 Check point 2 Set tester to the diode mode, and measure the voltage value between the following terminals. Judge the result of 4 as follows: Terminal Tester Tester screen ∞ → → 0.3 to 0.7 V → ∞ → - (03-53) - 4-6.

  • Page 106: Thermistor Resistance Values

    5. Thermistor resistance values 5-1. 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) 25.92 1.39 50.0 (10.0) 20.17 1.66 59.0 (15.0) 15.84 1.94 68.0 (20.0)

  • Page 107: Outdoor Unit

    5-2. 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 - (03-58) - 5-2. Outdoor unit 5. Thermistor resistance values...
  • Page 111 4. CONTROL AND FUNCTIONS 2021.04.26 SR_CH04_AR030EF_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 ..............04-5 1-5. Compressor frequency limitation by outdoor temperature ..........04-6 2. Auto changeover operation................04-8 3.

  • Page 113: Compressor Frequency Control

    However, the maximum frequency is limited in the range shown in the figure below based on the indoor fan mode and the outdoor temperature. • Compressor frequency range Unit: rps Model name Minimum frequency Maximum frequency ADUH09LUAS1 ADUH12LUAS1 ADUH18LUAS1 - (04-1) - 1-1. Cooling operation 1. Compressor frequency control...
  • Page 114 Unit: rps Outdoor Indoor unit fan mode Model name temperature HIGH QUIET zone A zone B zone C zone ADUH09LUAS1 D zone E zone F zone A zone B zone C zone ADUH12LUAS1 D zone E zone F zone A zone...

  • Page 115: Heating Operation

    • Compressor frequency range Unit: rps Model name Minimum frequency Maximum frequency ADUH09LUAS1 ADUH12LUAS1 ADUH18LUAS1 • 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 ↓ zone ADUH09LUAS1 J zone Y zone ↓ zone ADUH12LUAS1 J zone ADUH18LUAS1 Y zone •...

  • Page 117: Compressor Frequency At Normal Start-Up

    1-4. Compressor frequency at normal start-up ¢ Model: AOUH09LUAS1 Compressor frequency soon after starting is controlled as below. Frequency VII Frequency VI Frequency V Frequency IV Frequency III Frequency II Frequency I Time 1 Time 2 Time 3 Time 4 Time 5 Time 6 Time 7...

  • Page 118: 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 100.4°F (38°C) E zone 66.2°F (19°C) D zone 50.0°F (10°C) C zone 32.0°F (0°C) B zone 14.0°F (-10°C) A zone Limitation of compressor...
  • Page 119 • Heating mode F zone 66.2°F (19°C) E zone 41.0°F (5°C) D zone 32.0°F (0°C) C zone 5.0°F (-15°C) B zone -13.0°F (-25°C) A zone Limitation of compressor Model name Outdoor temperature zone frequency A zone 37 rps B zone 37 rps C zone 36 rps...

  • Page 120: Auto Changeover Operation

    2. Auto changeover operation →hen the air conditioner is set to AUTO mode by remote controller, operation starts in the optimum mode from among heating, cooling, dry and monitoring modes. During operation, the optimum mode is automatically switched in accordance with temperature changes. The temperature can be set be- tween 64.4°F (18°C) and 86.0°F (30°C) in 1.8°F (1.0°C) steps.
  • Page 121 Operation flow chart Start Ts: Setting temperarure Monitor mode Room temp. > Ts+3.6°F(2°C)? Room temp. < Ts-3.6°F(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 122: 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 ADUH09LUAS1 ADUH12LUAS1 ADUH18LUAS1 HIGH 1,260 1,340 1,380 1,160 1,240 1,300 Heating LO→...
  • Page 123 ¢ 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 124 ¢ 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) - (04-12) - 3-1.

  • 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: AOUH09LUAS1 Fan speed is defined by outdoor temperature and compressor frequency. •...
  • Page 126  Model: AOUH12LUAS1 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 69.8°F ( 21°C) 66.2 °F Z zone (19°C) 53.6°F ( 12°C) 50.0 °F F zone...
  • Page 127  Model: AOUH18LUAS1 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 69.8°F ( 21°C) 66.2 °F Z zone (19°C) 53.6°F ( 12°C) 50.0 °F F zone...

  • Page 128: Timer Operation Control

    4. Timer operation control 4-1. 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 129 ¢ 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 130: Ired Remote Control

    4-2. Wired remote control Temperature set On/Off timer Program timer Sleep timer Weekly timer back timer ○ ○ ○ ○ ○ ¢ On/Off timer • Off timer: →hen the clock reaches the set timer, the air conditioner will be turned off. Operation mode Stop mode Set time of timer...
  • Page 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 ¢ 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 133: Defrost Operation Control

    5. 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 134: Defrost Operation In Heating Operation Stopped

    – Models: AOUH12LUAS1 and AOUH18LUAS1 • 1st time defrosting after starting operation Compressor integrating Less than 17 min. 17 to 57 min. More than 57 min. operation time Tn ≤ 15.8°F (-9°C) and Condition Does not operate Tn ≤ 23.0°F (-5°C) Tn-Ta ≥...

  • Page 135: 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 136: Compressor Preheating

    6-5. 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) 28.4°F (-2°C) 24.8°F (-4°C) →hen the jumper wire (JM2) is disconnected: 44.6°F (7°C) 41.0°F...

  • Page 137: Drain Pump Control

    6-8. Drain pump control ¢ Drain control for dehumidification operation  During cooling or dry mode • →hen the compressor starts, the drain pump starts simultaneously. • The drain pump operates continuously for 3 minutes after the compressor is turned off. Compressor Drain pump 3 minutes...

  • Page 138: Prevention To Restart For 3 Minutes (3 Minutes St)

     During heating mode or fan mode and when operation is stopped • Triggering condition Drain pump is turned on at the same time that the float switch is turned on. • Operation details →hen the float switch turns on continuously for 3 minutes, "failure indication" operates. There- after, even if the float switch turns off, the "failure indication"...

  • Page 139: Unit Status Monitoring And The Detected Value Indication

    6-11. Unit status monitoring and the detected value indication The wired remote controller can monitor the indoor and outdoor units' status and display the detect- ed result as a relevant ID. For details of the display method, refer to the Chapter of “Display Sensor Values” in the Installation Manual of →ired remote controller (Touch panel).
  • Page 140 Available Sensor ID Sensor ID Item Unit Remarks 0: Off, 1: On Cooling thermostat On/Off (External NOTE: The value is output even if 00: — output) the function setting or rotary switch is not set. 0: Off, 1: On Requested cooling strength On/Off NOTE: The value is output even if 00: —...

  • Page 141: 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 142: Current Release Control

    7-3. 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: Indoor Unit Fan Motor Over Temperature Protection

    7-4. Indoor unit fan motor over temperature protection →hen satisfy the following conditions, the protection works. • After the 90 seconds from the fan operation, detect less than 300 rpm for 10 seconds. • IPM trip protection works. • Current overload protection works. →hen detecting the above condtion, recheck the condition after 6 minutes.

  • Page 144: High Temperature And High Pressure Release Control

    7-7. High temperature and high pressure release control The compressor is controlled as follows. ¢ Models: AOUH09LUAS1, AOUH12LUAS1 and AOUH18LUAS1 • Cooling mode Indoor unit heat exchanger Indoor unit heat exchanger temperature rises temperature drops 141.8°F (61°C) Zone A 140.0°F (60°C) 138.2°F (59°C) Zone B 129.2°F (54°C)
  • Page 145 5. FILED WORKING 2021.04.26 SR_CH05_AR030EF_01...
  • Page 146 CONTENTS 5. FILED WORKING 1. Function settings ..................05-1 1-1. Function settings on indoor unit..................05-1 1-2. Function settings by using remote controller ..............05-3...
  • Page 147 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 on indoor unit By using some components on the PCB, you can change the function settings. Related components on the PCB and the applicable settings: Component Setting content...
  • Page 148 ¢ DIP switch setting • SW101-Switch 1: Drainage function setting Switch 1 Drainage function Factory setting Disabled Enabled ♦ • SW101-Switch 2: Auto louver grille setting →hen Auto louver grille kit (optional parts) is attached, set to “Enabled”. Switch 2 Auto louver grille setting Factory setting Enabled...
  • Page 149 1-2. 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. ¢ Setting procedure by using remote controller Remote controller is not attached for this product.
  • Page 150 2) Static pressure Select the appropriate static pressure according to the installation conditions. Function number Setting value Setting description Factory setting 0 in.→G (0 Pa) 0.04 in.→G (10 Pa) 0.08 in.→G (20 Pa) 0.12 in.→G (30 Pa) 0.16 in.→G (40 Pa) 0.20 in.→G (50 Pa) 0.24 in.→G (60 Pa) 0.28 in.→G (70 Pa)
  • Page 151 4) 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 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) Switching functions for external output terminal Functions of the external output terminal can be switched. For details, refer to “External input and output”. Function number Setting value Setting description Factory setting Operation status ♦ 01—04 Cooling thermostat On Heating operation Operation/Stop 07—08 Cooling thermostat On...
  • Page 154 13) Operating temperature switching of external heaters Sets the temperature conditions when the external heater is ON. For details, refer to “External heater output” in Chapter 0-1. "Details of function" on page 1. Setting description Setting value of function 61: Function Setting Factory...
  • Page 155 15) 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” in Chapter 0-1. "Details of function" on page 1. Function number Setting value Setting description...
  • Page 156 19) Fan delay time Sets the fan delay time when the heater is turned off. Function number Setting value Setting description Factory setting 1 minute ♦ 50 seconds 40 seconds 30 seconds 20) External heater use in defrosting Enables or disables external heater use in defrosting. NOTE: Inappropriate heater selection may cause cold air in defrosting.

This manual is also suitable for:

Aduh12luas1Aduh18luas1Aouh09luas1Aouh12luas1Aouh18luas1

Table of Contents