Fujitsu AR 18LUAD Series Service Instruction
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Fujitsu AR 18LUAD Series Service Instruction

Duct type inverter, refrigerant r410a, indoor/outdoor unit
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SERVICE
INSTRUCTION
R410A
SPLIT TYPE
ROOM AIR CONDITIONER
DUCT
INVERTER
Models Indoor unit Outdoor unit
AR*18LUAD
AR*24LUAN
AR*30LUAN
AR*36LUAN
AR*45LUAN
AR*45LUAK
AR*54LUAK
type
AO*18LMAKL
AO*24LMAKL
AO*30LMAWL
AO*36LMAWL
AO*45LJBYL
AO*45LJAYL
AO*54LJAYL

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Summary of Contents for Fujitsu AR 18LUAD Series

  • Page 1 SPLIT TYPE ROOM AIR CONDITIONER DUCT type INVERTER SERVICE INSTRUCTION Models Indoor unit Outdoor unit AO*18LMAKL AR*18LUAD AO*24LMAKL AR*24LUAN AR*30LUAN AO*30LMAWL AR*36LUAN AO*36LMAWL AR*45LUAN AO*45LJBYL AR*45LUAK AO*45LJAYL AO*54LJAYL AR*54LUAK R410A...

  • Page 2: Table Of Contents

    CONTENTS 1. SPECIFICATIONS SPECIFICATIONS......................01-01 2. DIMENSIONS DIMENSIONS........................02-01 3. REFRIGERANT SYSTEM DIAGRAM REFRIGERANT CIRCUIT....................03-01 4. CIRCUIT DIAGRAM CIRCUIT DIAGRAM......................04-01 5. DESCRIPTION OF EACH CONTROL OPERATION 5-1 COOLING OPERATION.................... 05-01 5-1-1 COOLING CAPACITY CONTROL..............05-01 5-2 HEATING OPERATION..................... 05-02 5-2-1 HEATING CAPACITY CONTROL..............
  • Page 3 6. REFRIGERANT CAUTION -R410A- 6-1 R410A TOOLS......................06-01 6-2 PRECAUTION FOR INSTALLATION................. 06-02 6-3 PRECAUTION FOR SERVICING................06-04 6-4 NEW REFRIGERANT R410A..................06-05 6-5 DEFFERENCE FROM CONVENTIONAL MODEL (R22) AND PRECAUTIONS..06-08 7. TROUBLE SHOOTING 7-1 ERROR DISPLAY...................... 07-01 7-1-1 WIRED REMOTE CONTROLLER DISPLAY............07-01 07-03 7-1-2 OUTDOOR UNIT DISPLAY................
  • Page 4 10. REPLACEMENT PARTS 1 REPLACEMENT PARTS ( For OUTDOOR UNIT )............10-01 1-1 For AOU18/ 24LMAKL.................... 10-01 1-1-1 PARTS LAYOUT DRAWING................10-01 1-1-2 WIRING........................ 10-03 1-1-3 DISASSEMBLY PROCESS................. 10-04 1-2 For AO*30/ 36LMAWL..................... 10-08 1-2-1 PARTS LAYOUT DRAWING................10-08 1-2-2 WIRING........................ 10-10 1-2-3 DISASSEMBLY PROCESS.................

  • Page 5: Specifications

    R410A DUCT type INVERTER 1 . SPECIFICATIONS...

  • Page 6: Dimensions

    1. SPECIFICATIONS DUCTED MODELS TYPE INVERTER HEAT PUMP TYPE INDOOR AR 18LUAD AR 24LUAN MODEL NAME OUTDOOR AO 18LMAKL AO 24LMAKL POWER SOURCE 230V 50Hz AVAILABLE VOLTAGE RANGE 198-264V EUROPAN ENERGY LABEL 5.20 / 5.90 7.10 / 8.00 COOLING RATED / MAX BTU/h 17800 / 20100 24200 / 27300...
  • Page 7 REMOTE CONTROLLER WIRED(AR-3TA1) MATERIAL Steel DRAIN PIPE SIZE Outer diameter 38.0mm / Inner diameter 36.0mm Remote Senser(UTD-RS100) Simple Wired Remocon (Fujitsu:UTB-YPB,General:UTB-GPB) INDOOR Square flange(UTD-SF045T) OPTIONS Round flange(UTD-RF204) Long life filter(UTD-LF25NA) E x ternal cable set(UTD-ECS5A) OUTDOOR Note: Specifications are based on the following conditions.
  • Page 8 DUCTED MODELS TYPE REVERSE CYCLE TYPE INDOOR AR 45LUAN MODEL NAME OUTDOOR AO 45LJBYL POWER SOURCE 230V 50Hz AVAILABLE VOLTAGE RANGE 198-264V 12.5/14.0 COOLING RATED/MAX BTU/h 42700/47800 CAPACITY 14.0/17.0 HEATING RATED/MAX BTU/h 47800/61500 COOLING RATED/MAX 4.45/5.15 INPUT POWER HEATING RATED/MAX 3.95/5.15 COOLING RATED/MAX...
  • Page 9 DUCTED INVERTER MODELS TYPE HEAT PUMP TYPE INDOOR AR 45LUAK AR 54LUAK MODEL NAME OUTDOOR AO 45LJAYL AO 54LJAYL POWER SOURCE 230V 50Hz AVAILABLE VOLTAGE RANGE 198-264V 50Hz 12.5 / 14.0 14.0 / 15.3 COOLING RATED / MAX BTU/h 42700 / 47800 47800 / 52200 CAPACITY 14.0 / 18.0...
  • Page 10 DUCTED INVERTER MODELS TYPE HEAT PUMP TYPE INDOOR ART45LUAK ART54LUAK MODEL NAME OUTDOOR AOT45LJAYL AOT54LJAYL POWER SOURCE 240V 50Hz AVAILABLE VOLTAGE RANGE 198-264V 50Hz 12.5 / 14.0 14.5 / 15.3 COOLING RATED / MAX BTU/h 42700 / 47800 49500 / 52200 CAPACITY 14.0 / 18.0 16.0 / 20.0...

  • Page 11: Dimensions

    R410A DUCT type INVERTER 2 . DIMENSIONS...
  • Page 12 2. DIMENSIONS MODEL : AR*18LUAD / AO*18LMAKL (Unit : mm) 85 75 Refrigerant piping flare connection (Gas) Refrigerant piping flare connection (Liquid) Drain piping connection (Drain pipe : I.D. Ø 21.5 O.D. Ø 26.0) (Unit : mm) Top view Front view Side view 02-01...
  • Page 13 MODEL : AR*24LUAN / AO*24LMAKL (Unit : mm) 80 80 Front view 1177 80 80 P125x3=375 P125x3=375 1015 1135 Side view (L) Side view (R) Top view Refrigerant piping flare connection (Gas) Refrigerant piping flare connection (Liquid) Drain piping connection (Drain pipe : I.D 36 O.D Drain piping connection with cap.
  • Page 14 MODEL : AR*30/ 36LUAN / AO*30/ 36LMAWL (Unit : mm) 80 80 Front view 1177 80 80 P125x3=375 P125x3=375 1015 1135 Side view (L) Side view (R) Top view Refrigerant piping flare connection (Gas) Refrigerant piping flare connection (Liquid) Drain piping connection (Drain pipe : I.D 36 O.D Drain piping connection with cap.
  • Page 15 MODEL : AR*45LUAN / AO*45LJBYL (Unit : mm) 80 80 Front view 1177 80 80 P125x3=375 P125x3=375 1015 1135 Side view (L) Side view (R) Top view Refrigerant piping flare connection (Gas) Refrigerant piping flare connection (Liquid) Drain piping connection (Drain pipe : I.D 36 O.D Drain piping connection with cap.
  • Page 16 MODEL : AR*45/ 54LUAK / AO*45/ 54LJAYL (Unit : mm) Rear view 1080 1000 Side view (R) P120x2=240 P120x5=600 1050 Side view (L) Top view Refrigerant piping flare connection (Liquid) Refrigerant piping flare connection (Gas) Drain piping connection (Drain pipe : I.D.Ø23.4 O.D.Ø25.4) Drain piping connection (Drain pipe : I.D.Ø23.4 O.D.Ø25.4) Front view (Unit : mm)

  • Page 17: Refrigerant System Diagram

    R410A DUCT type INVERTER 3 . REFRIGERANT SYSTEM DIAGRAM...

  • Page 18: Refrigerant Circuit

    3. REFRIGERANT CIRCUIT MODEL : AR*18LUAD / AO*18LMAKL Outdoor Unit Indoor Unit Refrigerant Pipe Ø12.7mm(1/2") MUFFLER HIGH PRESSURE SWITCH 4-Way valve CONDENSER EVAPOLATOR ACCUMULATOR COMPRESSOR EXPANSION STRAINER VALVE THERMISTOR(DISCHARGE TEMP.) Refrigerant Pipe THERMISTOR(ROOM TEMP.) THERMISTOR(OUTDOOR TEMP.) Ø6.35mm(1/4") THERMISTOR(PIPE TEMP.) THERMISTOR(PIPE TEMP.) COOL HEAT MODEL : AR*24LUAN / AO*24LMAKL...
  • Page 19 MODEL : AR*30/ 36LUAN / AO*30/ 36LMAWL Outdoor Unit Indoor Unit PRESSURE Refrigerant Pipe CHECK VALVE Ø15.88mm(5/8") HIGH PRESSURE SWITCH Charging Valve 4-Way valve ACCUMULATOR CONDENSER EVAPOLATOR COMPRESSOR EXPANSION VALVE STRAINER STRAINER Refrigerant Pipe Ø9.52mm(3/8") Charging Valve THERMISTOR(DISCHARGE TEMP.) THERMISTOR(ROOM TEMP.) THERMISTOR(OUTDOOR TEMP.) THERMISTOR(PIPE TEMP.) THERMISTOR(PIPE TEMP.)
  • Page 20 MODEL : AR*45L/ 54L / AO*45L/ 54L Outdoor Unit Indoor Unit PRESSURE Refrigerant Pipe CHECK VALVE Ø15.88mm(5/8") HIGH PRESSURE SWITCH Charging Valve MUFFLER 4-Way valve ACCUMULATOR CONDENSER EVAPOLATOR STRAINER COMPRESSOR EXPANSION VALVE STRAINER STRAINER Refrigerant Pipe Ø9.52mm(3/8") Charging Valve THERMISTOR(DISCHARGE TEMP.) THERMISTOR(ROOM TEMP.) THERMISTOR(OUTDOOR TEMP.) THERMISTOR(PIPE TEMP.)

  • Page 21: Circuit Diagram

    R410A DUCT type INVERTER 4 . CIRCUIT DIAGRAM...
  • Page 22 4. CIRCUIT DIAGRAM MODEL : AR 18L THERMISTOR (PIPE TEMP.) GRAY GRAY THERMISTOR (ROOM TEMP.) BLACK BLACK (DRAIN PUMP) CN10 (HEATER) CN11 (FRESH AIR) FAN MOTOR CN13 CAPACITOR CN15 (DISPLAY) (FLOAT SW) WHITE WHITE BLACK WHITE CN17 BLACK MOTOR WHITE PINK CN14 (HA)
  • Page 23 MODEL : AR 24L/ 30L/ 36L/ 45LUAN TRANSFORMER GRAY GRAY GRAY GRAY GRAY GRAY E101 CN103 CN104 GRAY GRAY POWER PCB GRAY CN109 CN107 CN108 GRAY 6 5 4 3 2 1 GRAY 6 5 4 3 2 1 GRAY Use T 3.15A 250V GRAY Fuse on F101...
  • Page 24 MODEL : AR 45L/ 54LUAK TRANSFORMER GRAY GRAY GRAY GRAY 1 2 3 GRAY 1 2 3 GRAY CN104 CN103 GRAY GRAY POWER PCB GRAY CN109 GRAY CN117 GRAY GRAY 1 2 3 4 GRAY GRAY GRAY GRAY CN101 MAIN PCB W105 BLACK CN14...
  • Page 25 MODEL : AO*18L/ 24LMAKL ACTIVE WHITE FILTER CHOKE MODULE COIL WHITE CN11 1 2 3 4 5 6 CAPACITOR 1 2 3 4 W10 W11 TM104 TM105 CN407 COMPRESSOR COMPRESSOR PRESSURE SW TM305 CN37 WHITE TM304 COMPRESSOR FUSE THERMAL SW F2 T 3.15A 250V BLACK TM303...
  • Page 26 MODEL : AO*30/ 36LMAWL EMI FILTER CONNECTOR CN21 CN22 CN23 CN26 CN25 HIGH PRESSURE SW W305 CN37 COMPRESSOR BLACK SOLENOID WHITE WHITE CN30 FUSE BLACK COIL W304 F4 T 5A 250V BLACK BLACK W303 BLACK PRINTED FAN MOTOR CN800 BROWN WHITE CIRCUIT ACTIVE...
  • Page 27 MODEL : AO*45L/ 54L EMI FILTER CONNECTOR CN21 CN22 CN23 CN26 CN25 HIGH PRESSURE SW W305 CN37 COMPRESSOR BLACK SOLENOID WHITE WHITE CN30 COIL FUSE BLACK W304 F4 T 5A 250V F2 T 3.15A 250V BLACK BLACK W303 BLACK PRINTED CN800 FAN MOTOR 1 BROWN...

  • Page 28: Description Of Each Control Operation

    R410A DUCT type INVERTER 5 . DESCRIPTION OF EACH CONTROL OPERATION...

  • Page 29: Cooling Operation

    5-1. COOLING OPERATION 5-1-1 COOLING CAPACITY CONTROL A sensor (room temperature thermistor) built in the indoor unit will usually perceive difference or variation between a set temperature and present room temperature, and controls the operation frequency of the compressor. * If the room temperature is 2 degC higher than a set temperature, the compressor operation frequency will attain to maximum performance.

  • Page 30: Heating Operation

    5-2. HEATING OPERATION 5-2-1 HEATING CAPACITY CONTROL A sensor (room temperature thermistor) built in the indoor unit will usually perceive difference or variation between a set temperature and present room temperature, and controls the operation frequency of the compressor. * If the room temperature is lower 3 degC than a set temperature, the compressor operation frequency will attain to maximum performance.

  • Page 31: Dry Operation

    5-3. DRY OPERATION 5-3-1 INDOOR UNIT CONTROL The compressor rotation frequency shall change according to set temperature and room temperature variation which the room temperature sensor of the indoor unit has detected as shown in the Table 3. ( Table 3 : Compressor frequency ) Operating frequency AR*18LUAD 19Hz...

  • Page 32: Auto Changeover Operation

    5-4. AUTO CHANGEOVER OPERATION When the air conditioner is set to the AUTO mode by remote control, operation starts in the optimum mode from among the HEATING, COOLING and MONITORING modes. During operation, the optimum mode is automatically swiched in accordance with temperature changes. The temperature can be set between 18°C and 30°C in 1 degC steps.

  • Page 33: Indoor Fan Control

    5-5. INDOOR FAN CONTROL 1. Fan speed ( Table 5 : Indoor Fan Speed ) AR*18LUAD AR*24LUAN Operation mode Air flow mode Speed (rpm) Operation mode Air flow mode Speed (rpm) Heating 1040 Heating Cooling Cooling S-Lo S-Lo AR*30LUAN AR*36LUAN Operation mode Air flow mode Speed (rpm)
  • Page 34 4. HEATING OPERATION When the airflow is set to [AUTO], the indoor fan ( Fig.6 : Airflow change - over ( Heating : AUTO ) ) motor operates [MED] mode. Indoor heat exchanger Then the indoor fan motor will run according temperature to a room temperature, as shown in Figure 6.

  • Page 35: Outdoor Fan Control

    5-6. OUTDOOR FAN CONTROL 1. Outdoor Fan Motor Following table shows the fan speed of the outdoor unit. ( Table 6 : Fan speed of the outdoor unit ) Cooling Heating AR*18LUAD 780/ 400 rpm 780/ 400 rpm AR*24LUAN AR*30LUAN 900/ 780/ 400/ 250/ 170 rpm 850/ 780/ 400/ 250/ 170 rpm AR*36LUAN...

  • Page 36: Compressor Control

    5-7. COMPRESSOR CONTROL 1. OPERATION FREQUENCY RANGE The operation frequency of the compressor is different based on the operation mode as shown in Table 7. (Table 7 : Compressor Operation Frequency Range) Cooling Heating AR*18LUAD 15Hz 52Hz 15Hz 62Hz 19Hz AR*24LUAN 15Hz 75Hz...
  • Page 37 2-2. For AR*30/ 36/ 45LUAN/ AR*45/ 54LUAK The compressor frequency soon after the start-up is controlled as shown in Figure 9. (Fig.9 : Compressor Control at Start-up) Frequency Hold Frequency Time A Time B Time C Time D Time E For AR*30/ 36LUAN 1 Discharge pipe temp.

  • Page 38: Timer Operation Control

    5-8. TIMER OPERATION CONTROL 5-8-1 Wired Remote Controller AR-3TA1 ON / TIMER OFF / TIMER WEEKLY TIMER TEMPERATURE SET BACK TIMER 1. ON / OFF TIMER OFF timer : When the clock reaches the set time, the air conditioner will be turned off. Operation mode Stop mode Set time of timer...
  • Page 39 2-2. DAY OFF setting The DAY OFF setting is only available for days for which weekly settings already exist. If the operating time carries over to the next day (during a next day setting), the effective DAY OFF range will be set as shown below. Normal DAY OFF Operation mode...

  • Page 40: Electronic Expansion Valve Control

    5-9. ELECTRONIC EXPANSION VALVE CONTROL The most proper opening of the electronic expansion valve is calculated and controlled under the present operating condition based on the following values. The compressor frequency, the temperatures detected by the discharge temperature sensor and the outdoor temperature sensor. The pulse range of the electronic expansion valve control is between 50 to 480 pulses.

  • Page 41: Pump Down (For Ar*30/ 36/ 45Luan/ 45/ 54Luak)

    5-14. PUMP DOWN ( For AR*30/ 36/ 45LUAN/ 45/ 54LUAK) Perform the following procedures to collect the refrigerant when moving the indoor unit or the outdoor unit. When the product is stopped: 1. Press the PUMP DOWN switch (SW2) on the outdoor unit. (The LED on the outdoor unit circuit board flickers every 1second.) 2.

  • Page 42: Defrost Operation Control

    5-18. DEFROST OPERATION CONTROL 1. CONDITION OF STARTING THE DEFROST OPERATION 1-1. For AR*18LUAD/ 24LUAN The defrost operation starts when the outdoor heat exchanger temperature sensor detects the temperature lower than the values shown in Table 9-1. (Table 9-1 : Condition of starting Defrost Operation) Compressor integrating operation :40min and over Compressor integrating...
  • Page 43 3. Defrost Flow Chart 3-1. For AR*18LUAD/ 24LUAN The defrosting shall proceed by the integrating operation time as follows. Heating operation start : Compressor ON (Not defrosted for 6 or 10 minutes) Compressor integrating operation: 40 minutes and over Outdoor heat exchanger temperarure: Below -8°C Defrost start Defrost Indicator: [Operation lamp]...
  • Page 44 3-2. AR*30/ 36/ 45LUAN/ 45/ 54LUAK The defrosting shall proceed by the integrating operation time and outdoor heat exchanger temperature as follows. Heating operation start : Compressor ON (Not defrosted for 6 or 10 minutes) AR*45LUAN AR*45/ 54LUAK AR*30/ 36LUAN Compressor integrating Compressor integrating operation:...

  • Page 45: Energy Save Function

    5-19. ENERGY SAVE FUNCTION 1. During Cooling / Dry operation: The thermostat temperature setting increases by 1 degC as soon as the ENERGY SAVE button is pressed, and then increases by 1 degC after 1 hour later. Afterwards, energy consumption is saved by continuing to cool or dry at a thermostat temperature of 2 degC higher than setting temperature.

  • Page 46: Various Protections

    5-20. VARIOUS PROTECTIONS 1. DISCHARGE GAS TEMPERATURE OVER RISE PREVENTION CONTROL The discharge gas thermosensor (discharge thermistor : Outdoor side) will detect discharge gas temperature. When the discharge temperature becomes higher than Temperature ,the compressor frequency is decreased 10 Hz, and it continues to decrease the frequency for 10 Hz every 120 seconds until the temperature becomes lower than Temperature .
  • Page 47 2-2. For AR*30/ 36/ 45LUAN/ 45/ 54LUAK The compressor frequency is controlled so that the outdoor unit input current does not exceeds the current limit value that was set up with the outdoor temperature. The compressor frequency returns to the designated frequency of the indoor unit at the time when the frequency becomes lower than the release value.
  • Page 48 3. ANTI-FREEZING CONTROL (Cooling mode) The compressor frequency decreases on cooling mode when the indoor heat exchanger temperature sensor detects the temperature lower than 3°C. Then, the anti-freezing control is released when it becomes higher than 6°C. (Fig.12 : Anti-freezing Protection Operation / Release Temperature) Indoor heat exchange temperature The compressor frequency is...

  • Page 49: Refrigerant Caution -R410A

    R410A DUCT type INVERTER 6 . REFRIGERANT CAUTION -R410A-...

  • Page 50: R410A Tools

    6. REFRIGERANT CAUTION -R410A- 6-1. R410A TOOLS This air conditioner used R410A. TOOLS AND EQUIPMENT (R410A) For installation and servicing, it is necessary to prepare the tools and machines that are different from the previous Pressure control and Gas charging refrigerant.

  • Page 51: Precaution For Installation

    6-2. PRECAUTION FOR INSTALLATION Precaution for installation Pipe diameter, recommended material and wall thickness Nominal diameter 1/4" 3/8" 1/2" 5/8" 3/4" 7/8" 1" 1 1/8" 1 1/4" 1 3/8" 1 1/2" (in) Outside diameter 6.35 9.52 12.70 15.88 19.05 22.22 25.40 28.58 31.75 34.92...
  • Page 52 Be careful not to mix moisture and contamination into the pipe Moisture contamination in the pipe is a cause of trouble. Air purge Always use a vacuum pump to purge air. Refrigerant charge Don't charge from the phase side. Do it always from the liquid phase side.

  • Page 53: Precaution For Servicing

    6-3. PRECAUTION FOR SERVICING Feature 1 Refrigerant oil is different from before. Precaution on Tools Refrigerant oil for Different point from New Refrigerant previous one Use the gauge manifold and charge hose Synthetic oil Absorbent character for New Refrigerant(HFC), which shall is high.

  • Page 54: New Refrigerant R410A

    6-4. NEW REFRIGERANT R410A What is HFC ? Phase-out schedule of HCFC according to Montreal protocol (HCFC consumption of 1989) + 100% = (CFC consumption of 1989) x 2.8% total abolition only service use started control 0.5% 1996 2000 2004 2010 2015 2020...
  • Page 55 Ozone Layer depleting mechanism sunbeam Ozone CFCl What is CFC and HCFC? CFC : Chloro-Fluoro-Carbon High ODP( ozone depletion potential ) chemical compound, including chlorine. (ODP:0.6-1.0) For example : R12 (for refrigerator and car air-conditioner) HCFC : Hydro-Chloro-Fluoro-Carbon Low ODP chemical compound, including chlorine and hydrogen. (ODP:0.02-01) For example : R22 (for air-conditioner) : Hydro-Fluoro-Carbon...
  • Page 56 Summary of R407C and R410A characteristics R410A R407C higher system similar pressure as R22 performance (possible to design Advantage Near-Azeotropic large equipment) refrigerant 1.6 times higher Zeotropic refrigerant pressure than R22 Disadvantage (handle with care) (difficult to design against pressure resistance) Large Air-Conditioners Suitable for Small Air-Conditioners...

  • Page 57: Defference From Conventional Model (R22) And Precautions

    6-5. DEFFERENCE FROM CONVENTIONAL MODEL (R22) AND PRECAUTIONS • Use new synthetic oils such as ester because HFC series refrigerant has less solubility with mineral oils conventionally used for R22. • As these new synthetic oils are easily influenced by moisture and dusts, they must be treated more care- fully than the conventional lubricating oils.

  • Page 58: Trouble Shooting

    R410A DUCT type INVERTER 7 . TROUBLE SHOOTING...

  • Page 59: Error Display

    7. TROUBLESHOOTING 7-1 ERROR DISPLAY 7-1-1 WIRED REMOTE CONTROLLER DISPLAY 1. SELF - DIAGNOSIS When the error indication "E:EE" is displayed, inspection of the air conditioning system is necessary. Please consult authoilzed servise personnel. Run [Self-Diagnosis] if [E:EE] flashes on the clock display of the remote controller. Display Error code SU MO TU WE TH FR SA...
  • Page 60 2. ERROR CODE HISTORY DISPLAY Up to 16 memorized error codes may be displayed for the indoor unit connected to the remote controller. 1. Stop the air conditioner operation. 2. Press the SET TEMPERATURE buttons and the START/STOP button simultaneously for 5 seconds or more to start the self-diagnosis.

  • Page 61: Outdoor Unit Display

    7-1-2 OUTDOOR UNIT DISPLAY 1. ERROR DISPLAY For AR*18LUAD/ 24LUAN (AO*18/ 24LMAKL) Display Trouble LED Flashing Error contents priority shooting Pattern Outdoor communication signal error 1 time flash (Forward transfer signal error) Outdoor discharge pipe temperature sensor error 2 times blink Outdoor heat exchanger temperature sensor error 3 times blink Outdoor temperature sensor error...

  • Page 62: Trouble Shooting With Error Code

    7-2 TROUBLE SHOOTING WITH ERROR CODE Trouble shooting 1 Indicate or Display: INDOOR UNIT Error Method: Outdoor Unit : No indication Communication Error ERROR CODE : E : 00 (Indoor unit Remote control) Detective details: Detective Actuators: When the indoor unit cannot receive the signal from Wired Remote Indoor unit controller PCB circuit more than 10seconds after power ON, or the indoor unit cannot receive Wired Remote Control...
  • Page 63 Indicate or Display: Indicate or Display: Trouble shooting 2 OUTDOOR UNIT Error Method: Outdoor Unit : No indication Communication Error ERROR CODE : E : 01 (Serial Reverse Transfer Error) Detective details: Detective Actuators: When the indoor unit cannot receive the serial signal from Outdoor unit Outdoor Unit Main PCB Circuit more than 10seconds.
  • Page 64 Indicate or Display: Trouble shooting 3 INDOOR UNIT Error Method: Outdoor Unit : No indication INDOOR UNIT ERROR CODE : E : 02 / 03 Room Temperature Sensor Error Detective details: Detective Actuators: Indoor Unit Controller PCB Circuit When Room Temperature Thermistor open or short-circuit is detected at power ON.
  • Page 65 Indicate or Display: Trouble shooting 4 INDOOR UNIT Error Method: Outdoor Unit : No indication INDOOR UNIT Indoor Heat Exchanger Temperature ERROR CODE : E : 04 / 05 Sensor Error Detective Actuators: Detective details: Indoor Unit Controller PCB Circuit When Heat Exchanger Temperature Thermistor open or short-circuit is detected at power ON.
  • Page 66 Indicate or Display: Trouble shooting 5 OUTDOOR UNIT Error Method: Outdoor Unit : LED 3 times blink Outdoor Heat Exchanger Temperature ERROR CODE : E : 06 Sensor Error Detective Actuators: Detective details: Outdoor Unit Main PCB Circuit When Heat Exchanger Temperature Thermistor open or short-circuit is Heat Exchanger Temperature Thermistor detected at power ON or while running the compressor.
  • Page 67 Indicate or Display: Trouble shooting 7 OUTDOOR UNIT Error Method: INDOOR UNIT Outdoor Unit : LED 4 times blink Outdoor Temperature Sensor Error ERROR CODE : E : 0A Detective Actuators: Detective details: Outdoor Unit Main PCB Circuit When Outdoor Temperature Thermistor open or short-circuit is detected at power ON or while running the compressor.
  • Page 68 Indicate or Display: Trouble shooting 8 OUTDOOR UNIT Error Method: INDOOR UNIT Outdoor Unit : LED 2 times blink Outdoor Discharge Pipe Temperature ERROR CODE : E : 0C Sensor Error Detective details: Detective Actuators: When Discharge Pipe Temperature Thermistor open or short-circuit Outdoor Unit Main PCB Circuit is detected at power ON or while running the compressor.
  • Page 69 Trouble shooting 9 Indicate or Display: Indicate or Display: INDOOR UNIT Error Method: Outdoor Unit : No indication Indoor EEPROM abnormal ERROR CODE : E : 11 (Model No.) Detective details: Detective Actuators: Indoor Unit Controller PCB circuit When the model information being read from EEPROM has an apparent error.
  • Page 70 Indicate or Display: Trouble shooting 10 INDOOR UNIT Error Method: Outdoor Unit : No indication Indoor Fan Motor abnormal ERROR CODE : E : 12 Detective Actuators: Detective details: Indoor Unit Controller PCB Circuit When the condition that actual frequency of Indoor Fan is Indoor Fan Motor below 1/3 of target frequency is continued more than 56 seconds.
  • Page 71 Indicate or Display: Trouble shooting 11 Indicate or Display: INDOOR UNIT Error Method: Outdoor Unit : LED 1 time blink Outdoor Communication Signal Error ERROR CODE : E : 13 (Forward Transfer Signal Error) Detective details: Detective Actuators: Indoor Unit Controller PCB Circuit When the outdoor unit cannot receive the serial signal from Indoor unit more than 10seconds.
  • Page 72 (For AR*30L/36L/ 45L/ 54L) Indicate or Display: Trouble shooting 12 OUTDOOR UNIT Error Method: Outdoor Unit : LED 7 times blink ERROR CODE : E : 15 Compressor Temperature Sensor Error Detective Actuators: Detective details: When Compressor Temperature Thermistor open or short-circuit is Outdoor Unit Main PCB Circuit detected at power ON or while running the compressor.
  • Page 73 Indicate or Display: Trouble shooting 13 Outdoor Unit : LED 8 times blink (For AR*18L/ 24L) OUTDOOR UNIT Error Method: INDOOR UNIT 9 times blink (For AR*30L/ 36L/ 45L/ 54L) Pressure Switch Error ERROR CODE : E : 16 Detective details: Detective Actuators: Outdoor Unit Main PCB Circuit When pressure switch open is detected in 10 seconds...
  • Page 74 Indicate or Display: Trouble shooting 14 Outdoor Unit : LED 10 times blink (For AR*18L/ 24L) OUTDOOR UNIT Error Method: 12 times blink (For AR*30L/ 36L/ 45L/ 54L) IPM error (Permanent Stop) ERROR CODE : E : 17 Detective details: Detective Actuators: When more than normal operating current to IPM in Main PCB flows, Outdoor Unit Main PCB Circuit...
  • Page 75 Indicate or Display: Trouble shooting 15 Outdoor Unit : LED 11 times blink (For AR*18L/ 24L) OUTDOOR UNIT Error Method: No indication (For AR*30L/ 36L/ 45L/ 54L) CT error ERROR CODE : E : 18 Detective details: Detective Actuators: Outdoor Unit Main PCB Circuit When Input Current Sensor has detected lower than 0.5A Outdoor Unit Filter PCB Circuit while Inverter Compressor is operating at higher than 56Hz,...
  • Page 76 Indicate or Display: Trouble shooting 16 OUTDOOR UNIT Error Method: INDOOR UNIT Outdoor Unit : No indication ERROR CODE : E : 19 Active Filter Module (AFM) error Detective details: Detective Actuators: Outdoor Unit Main PCB Circuit When inverter input DC voltage is higher than 467V or Active Filter Module lower than 237V.
  • Page 77 Indicate or Display: Trouble shooting 17 Indicate or Display: OUTDOOR UNIT Error Method: Outdoor Unit : LED 12 times blink (For AR*18L/ 24L) 13 times blink (For AR*30L/ 36L/ 45L/ 54L) Compressor rotor location cannot detect (Permanent Stop) ERROR CODE : E : 1A Detective details: Detective Actuators: While running the compressor, if the detected rotor location is out of...
  • Page 78 (For AR*30L/36L/ 45L/ 54L) Indicate or Display: Trouble shooting 18 OUTDOOR UNIT Error Method: Outdoor Unit : LED 15 (Fan motor 1) times blink 16 (Fan motor 2) times blink Outdoor Unit Fan Motor Error ERROR CODE : E : 1b Detective Actuators: Detective details: When outdoor fan rotation speed is less than 100rpm in 20 seconds...
  • Page 79 Indicate or Display: Trouble shooting 19 OUTDOOR UNIT Error Method: Outdoor Unit : LED 8 times blink ERROR CODE : No indication Heat Sink Temperature Sensor Error Detective details: Detective Actuators: When Heat Sink Temperature Thermistor open or short-circuit is Outdoor Unit Main PCB Circuit detected at power ON or while running the compressor.
  • Page 80 Indicate or Display: Trouble shooting 20 OUTDOOR UNIT Error Method: Outdoor Unit : LED 13 times blink (For AR*18L/ 24L) 14 times blink (For AR*30L/ 36L/ 45L/ 54L) Compressor Start-up error (Permanent Stop) ERROR CODE : No indication Detective Actuators: Detective details: On start-up the compressor, when detected rotor position is out of phase Outdoor Unit Main PCB Circuit...

  • Page 81: Trouble Shooting With No Error Code

    7-3 TROUBLE SHOOTING WITH NO ERROR CODE Forecast of Cause: Trouble shooting 21 1. Power Supply failure 2. External cause Indoor Unit - No Power 3. Electrical Components defective Check Point 1 : Check Installation Condition Isn’t the breaker down? Check loose or removed connection cable.
  • Page 82 Forecast of Cause: Trouble shooting 22 1. Power Supply failure 2. External cause Outdoor Unit - No Power 3. 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 Installation Manual or Data &...
  • Page 83 Forecast of Cause: Trouble shooting 23 1. Setting/ Connection failure 2. External cause No Operation (Power is ON) 3. Electrical Component defective Check Point 1 : Check indoor and outdoor installation condition Indoor Unit - Check incorrect wiring between Indoor Unit - Remote Control, or terminals between Indoor Units. Or, check if there is an open cable connection.
  • Page 84 Forecast of Cause: Trouble shooting 24 1. Indoor Unit error 2. Outdoor Unit error No Cooling / No Heating 3. Effect by Surrounding environment 4. Connection Pipe / Connection Wire failure 5. Refrigeration cycle failure Check Point 1 : Check Indoor Unit Does Indoor Unit FAN run on HIGH FAN? Is Air Filter dirty? Is Heat Exchanger clogged?
  • Page 85 Forecast of Cause : Trouble shooting 25 1. Abnormal installation (Indoor/ Outdoor) 2. Fan failure(Indoor/ Outdoor) Abnormal Noise 3. Compressor failure (Outdoor) Diagnosis method when Abnormal Noise is occurred Abnormal noise is coming from Indoor Unit. Abnormal noise is coming from Outdoor Unit. (Check and correct followings) (Check and correct followings) Is Main Unit installed in stable condition?

  • Page 86: Service Parts Information

    7-4 SERVICE PARTS INFORMATION SERVICE PARTS INFORMATION 1 Compressor Diagnosis method of Compressor ( If Outdoor Unit LED displays Error, refer to Trouble shooting ) Abnormal noise Stops soon after starting up Does not start up Check if vibration noise by Is there open or loose connection Is there open or loose connection loose bolt or contact noise...
  • Page 87 SERVICE PARTS INFORMATION 2 Inverter Compressor Check Point 1 : Check Connection Check terminal connection of Compressor Check connection of Main PCB (loose or incorrect wiring) (Loose or incorrect wiring) Terminal cover opened (RED) (RED) W304 MAIN PCB (TM304) W305 W303 (TM303) (TM305)
  • Page 88 SERVICE PARTS INFORMATION 3 Active Filter Module Check Point 1 : Check Open or Short-circuit and Diode (D1) Remove connector, check the open or short-circuit and the diode in the module Check the open or short-circuit Terminal Resistance value Tester(+) Tester(-) 360k 720k...
  • Page 89 SERVICE PARTS INFORMATION 4 Outdoor unit Electronic Expansion Valve ( EEV ) Check Point 1 : Check Connections Check connection of connector (CN27) ( Loose connector or open cable ) EXPANSION VALVE COIL BROWN BLUE CN27 ORANGE YELLOW WHITE Check Point 2 : Check Coil of EEV Check Point 3 : Check Voltage from Main PCB.
  • Page 90 SERVICE PARTS INFORMATION 5 Indoor Unit Fan Motor Check Point : AR*18LUAD/ AR*24/ 30/ 36/ 45LUAN Check each winding resistance of the motor If Resistance value is abnormal, replace motor. AR*18LUAD BLUE Read Wire Resistance value VIOLET White Red 90.3 PINK Black Thermal protector...
  • Page 91 SERVICE PARTS INFORMATION 6 Outdoor Unit Fan Motor Check Point : AR*18LUAD/ 24LUAN (AO*18/ 24LMAKL) Check each winding resistance of the motor If Resistance value is abnormal, replace motor. BLUE Read Wire Resistance value Thermal protector 150°C 54.7 White - Red Red - Black 96.3 (AC)

  • Page 92: Appending Data

    R410A DUCT type INVERTER 8 . APPENDING DATA...

  • Page 93: Capacity Table

    8. APPENDING DATA 8-1. CAPACITY TABLE MODEL : AR*18LUAD/ AO*18LMAKL COOLING 17.3 Indoor temperature 18°CDB 21°CDB 23°CDB 26°CDB 27°CDB 29°CDB 30°CDB 32°CDB 12°CWB 15°CWB 16°CWB 18°CWB 19°CWB 21°CWB 22°CWB 23°CWB (°CDB) 3.63 3.05 0.30 3.70 2.88 0.31 3.77 3.05 0.31 3.88 3.17 0.32...
  • Page 94 MODEL : AR*24LUAN/ AO*24LMAKL COOLING 24.8 Indoor temperature 18°CDB 21°CDB 23°CDB 26°CDB 27°CDB 29°CDB 30°CDB 32°CDB 12°CWB 15°CWB 16°CWB 18°CWB 19°CWB 21°CWB 22°CWB 23°CWB (°CDB) 4.92 4.28 0.45 5.02 4.04 0.46 5.12 4.27 0.46 5.26 4.44 0.47 5.33 4.41 0.47 5.44 4.33 0.48...
  • Page 95 MODEL : AR*36LUAN/ AO*36LMAWL COOLING Indoor temperature 21°CDB 23°CDB 26°CDB 27°CDB 29°CDB 30°CDB 32°CDB 15°CWB 16°CWB 18°CWB 19°CWB 21°CWB 22°CWB 23°CWB (°CDB) 10.91 8.62 1.93 11.18 9.34 1.95 11.72 9.96 1.99 12.01 9.90 2.01 12.58 9.75 2.04 12.87 9.67 2.06 13.14 10.34 2.07 9.83...
  • Page 96 MODEL : AR*45LUAK/ AO*45LJAYL COOLING Indoor temperature 21 °CDB 23 °CDB 26 °CDB 27 °CDB 29 °CDB 30 °CDB 32 °CDB 15 °CWB 16 °CWB 18 °CWB 19 °CWB 21 °CWB 22 °CWB 23 °CWB ( °CDB) 13.30 10.85 2.45 13.65 11.82 2.46 14.35 12.67...

  • Page 97: Operation Range

    8-2. OPERATION RANGE MODEL : AR*18LUAD/ 24LUAN / AO*18/ 24LMAKL Operation Range Mode Indoor humidity Outdoor temperature Indoor temperature Cooling About 80% or less 0 to 43°C 18 to 32°C Heating 30°C or less -10 to 24°C MODEL : AR*30/ 36LUAN / AO*30/ 36LMAWL Operation Range Mode Indoor humidity Outdoor temperature...

  • Page 98: Electric Characteristics

    8-3. ELECTRIC CHARACTERISTICS Indoor unit AR*18LUAD AR*24LUAN Model Name Outdoor unit AO*18LMAKL AO*24LMAKL Power Supply Mode Cooling Heating Cooling Heating Rated Value Current 11.1 10.6 Input 1.70 1.90 2.53 2.43 Max Operating Current 12.5 12.5 12.5 12.5 Starting Current Main Fuse (Circuit breaker) Current *1) Wiring Spec Power Cable...
  • Page 99 Indoor unit AR*45LUAN Model Name Outdoor unit AO*45LJBYL Power Supply Mode Cooling Heating 17.3 Rated Value 19.5 Current 3.95 4.45 Input 22.6 22.5 Max Operating Current Starting Current Main Fuse (Circuit breaker) Current *1) Wiring Spec Power Cable *2)Limited wiring length 0.150 Input Indoor Fan Motor...

  • Page 100: Safety Device

    8-4. SAFETY DEVICE OUTDOOR UNIT PROTECTION FORM AO*18LMAKL AO*24LMAKL FUSE (SIDE OF POWER SUPPLY TERMINAL) 25A 250V FUSE (SIDE OF INDOOR UNIT) 3.15A 250V 5.0A 250V FUSE ON MAIN PCB 150°C ± 5°C OFF FAN MOTOR PROTECTOR THERMAL PROTECTOR OFF 120 ± 5°C THERMAL SWITCH ON 85 ±...
  • Page 101 INDOOR UNIT PROTECTION FORM AR*18LUAD AR*24LUAN PCB FUSE 3.15A 250V FAN MOTOR PROTECTION 150 ± 5°C OFF THERMAL PROTECTOR PROTECTION FORM AR*30LUAN AR*36LUAN PCB FUSE 3.15A 250V FAN MOTOR PROTECTION THERMAL PROTECTOR 150 ± 5°C OFF PROTECTION FORM AR*45LUAN PCB FUSE 3.15A 250V FAN MOTOR PROTECTION THERMAL PROTECTOR...

  • Page 102: Function Setting

    8-5. FUNCTION SETTING 8-5-1 INDOOR UNIT (AR*18LUAD) INDOOR UNIT Auto restart validity/invalidity SW 1 Room temperature correct coefficient Room temperature correct coefficient DIP SW Forbidden SW 4 High(Low) static pressure function setting Fan delay setting Rotary SW Indoor unit number setting SW 2 Forbidden Jumper Wire...
  • Page 103 DIP SWITCH SETTING 1-1.Auto restart setting Auto restart function can be selected by turning this switch ON/OFF. AUTO RESTART SETTING Factory setting) SW 1-1 SW state Invalidity Validity 1-2.Room temperature correct coefficient of heating. Decide the heating temperature correct coefficient vale of heating. TEMPERATURE CORRECTION Factory setting) SW state...
  • Page 104 This switch can be used when group control system. Set the indoor unit address in the 0,1-15 order. Factory setting) SW 2 SW state Single 1 - 15 Indoor unit address 1-1.JM 1, 2, 3 setting forbidden Factory setting) JM 1, 2, 3 JM state Connect Forbidden...

  • Page 105: Indoor Unit (Ar*24Luan)

    8-5-2 INDOOR UNIT (AR*24LUAN) INDOOR UNIT Low static pressure function setting Forbidden SW 1 Forbidden DIP SW Forbidden Room temperature correct coefficient of heating External input setting SW 2 Auto restart validity/invalidity Rotary SW SW 3 Indoor unit number setting Room temperature correct coefficient of cooling Jumper Wire Commercial mode setting...
  • Page 106 DIP SWITCH SETTING 1-1 Low static pressure function setting In case of installing in low static , you can minimize air flow and noise. Factory setting) SW1-1 SW state Normal Low static pressure 1-2 Dip SW 1-2,1-3,1-4 setting forbidden Factory setting) SW1-2 SW1-3 SW1-4...
  • Page 107 Room temperature correct coefficient of cooling Decide the cooling temperature correct coefficient value of cooling. Cool temperature corrction Factory setting) JM state Connect 0 deg Disconnect + 2 deg Commercial mode setting "Hot start" can be canceled,fan operates continously when indoor unit is ON on every mode. When you select "FAN:AUTO"mode fan goes in "HIGH"...

  • Page 108: Indoor Unit (Ar*30/ 36/ 45Luan)

    8-5-3 INDOOR UNIT (AR*30/ 36/ 45LUAN) INDOOR UNIT Low static pressure function setting SW 1 Forbidden DIP SW Room temperature correct coefficient of heating SW 2 External input select Auto restart validity/invalidity Rotary SW SW 3 Indoor unit number setting JM1 Room temperature correct coefficient of cooling Jumper Wire JM2 Commercial mode setting...
  • Page 109 1. SW1 setting 1-1 Low static pressure function setting In case of installing in low static , you can minimize air flow and noise. Factory setting) SW1-1 SW state Normal Low static pressure 1-2 Dip SW 1-2,1-3,1-4 setting forbidden Factory setting) SW1-2 SW1-3 SW1-4...
  • Page 110 Room temperature correct coefficient of cooling. Decide the cooling temperature correct coefficient value of cooling. Cool temperature corrction Factory setting) JM state Connect 0 deg Disconnect + 2 deg Commercial mode setting "Hot start" can be canceled,fan operates continously when indoor unit is ON on every mode. When you select "FAN:AUTO"mode fan goes in "HIGH".

  • Page 111: Indoor Unit (Ar*45/ 54Luak)

    8-5-4 INDOOR UNIT (AR*45/ 54LUAK) INDOOR UNIT SW 1 Forbidden DIP SW Room temperature correct coefficient of heating SW 2 External input select Auto restart validity/invalidity Rotary SW SW 3 Indoor unit number setting JM1 Forbidden Jumper Wire JM2 Commercial mode setting JM3 Fan delay setting Duct type Indoor unit control circuit board POWER PCB...
  • Page 112 1. SW1 setting 1-1 Dip SW 1-1,1-2,1-3,1-4 setting forbidden Factory setting) SW1-1 SW1-2 SW1-3 SW1-4 2. SW2 setting 2-1 Room temperature correct coefficient of heating. Decide the heating temperature correct coefficient vale of heating. Heat temperature corrction Factory setting) SW2-1 SW state Ceiling setting (+4 °C ) Room setting ( 0 °C )
  • Page 113 JM1 setting forbidden Factory setting) SW state Connect Forbidden Disconnect Commercial mode setting "Hot start" can be canceled,fan operates continously when indoor unit is ON on every mode. When you select "FAN:AUTO"mode fan goes in "HIGH" Factory setting) SW state Connect Residencial Disconnect...

  • Page 114: Outdoor Unit (Ao*30/ 36Lmawl/ 45/ 54Lj*Yl)

    8-5-5 OUTDOOR UNIT ( AO*30/ 36LMAWL/ AO*45/ 54LJ*YL ) OUTDOOR UNIT Change current capacity DIP SW 1 No use (OFF) PUSH SW Pump down switch Outdoor unit control circuit board DIP SW 1 PUSH SW 08-22...
  • Page 115 Current capacity setting For AO*30/ 36LMAWL DIP-SW CURRENT (MAX.) 18.0A 15.0A 13.5A 12.0A *1=36000BTU model's factory setting (AO*36LMAWL) *2=30000BTU model's factory setting (AO*30LMAWL) For AO*45/ 54LJ*YL DIP-SW CURRENT (MAX.) 23.5A 20.0A 18.0A 15.5A *1=54000BTU model's factory setting (AO*54LJAYL) *2=45000BTU model's factory setting (AO*45LJ*YL) SW2 setting Press the this push-button switch, and "PUMP DOWN OPERATION"...

  • Page 116: Wired Remote Controller

    8-5-6 WIRED REMOTE CONTROLLER Wired remote controller Dual remote controller setting Group control setting DIP SW Model setting Auto changeover setting Memory backup setting SWITCH POSITION Wired remote controller Front case (back side) DIP Switch 08-24...
  • Page 117 1. SW setting 1-1 Dual remote controller setting Set the remote controller DIP switch No.1 and 2 according to the following table. Factory setting) Number of Master unit Slave unit remote DIP-SW DIP-SW DIP-SW DIP-SW controller No.1 No.2 No.1 No.2 1 (Normal) 2 (Dual) 1-2 Group control setting...

  • Page 118: Installation Manual

    R410A DUCT type INVERTER 9 . INSTALLATION MANUAL...
  • Page 119 STANDARD PARTS INDOOR UNIT • Install the hangers to the unit (4 places). 5. SERVICE HOLE DIMENSIONS 3. DRILLING HOLES FOR BOLTS AND IN- Duct Type CAUTION Open a service hole with the dimensions shown. STALLING THE BOLTS INSTALLATION The following installation parts are furnished. Use them as required. Hanger •...
  • Page 120 REMOTE CONTROLLER C.Indoor unit/remote controller setting INSTALLING DRAIN 1. INDOOR UNIT SIDE 2. Floor standing concealed/ceiling 2. ROUTING THE REMOTE CONTROLLER WIRES 4. SETTING THE ROOM TEMPERATURE DE- ELECTRICAL WIRING (room temperature sensor selection) (1) Remove the control box cover from the control box. concealed select switch (1) Install the remote controller wires to the terminals on the top of TECTION LOCATION...
  • Page 121 For authorized service personnel only. INSTALLATION Slide the unit in the arrow direction and fasten it. • Cut the drain hose insulation at a position approximately 30mm Refrigerant CAUTION from the end with cutters, etc. Hanging bolt M10 WARNING Special nut A PROCEDURE (Obtained locally) •...
  • Page 122 2. BENDING PIPES 3. CONNECTION PIPES 4. HEAT INSULATION ON THE PIPE 1. CONNECTION DIAGRAMS (1) Remove the control box cover and install each connection CONNECTING THE ELECTRICAL WIRING wire. The pipes are shaped by your hands. Be careful not to collapse Indoor unit side JOINTS (INDOOR SIDE ONLY) Remote controller...
  • Page 123 CONNECTING PIPE REQUIREMENT INSTALLATION 4. INSTALLING THE DRAIN PIPES Refrigerant OUTDOOR UNIT CAUTION Install the drain pipes according to the measurements given in Duct Type PROCEDURE R410A CAUTION Fasten the unit securely with special nuts A and B. the following figure. INSTALLATION The maximum lengths of this product are shown in the following table.
  • Page 124 6. GAS LEAKAGE INSPECTION (2) Valve cover removal. (5) Power supply cord and connection cord should be fixed with CONNECTING THE PIPE CAUTION POWER ELECTRICAL WIRING • Remove the one mounting screw. cable clip as shown in the figure. • Remove the valve cover by sliding upward. Fill in a gap at the entrance of the cords with insulation (seal).
  • Page 125 STANDARD ACCESSORIES CONNECTION PIPE REQUIREMENT INSTALLATION PROCEDURE CONNECTING THE PIPING 3. CONNECTION SPLIT TYPE AIR CONDITIONER 2. OUTDOOR UNIT CONNECTION CORD AND (1) Install the outdoor unit wall cap (supplied with the optional installation The following accessories are supplied with the outdoor unit. Use them as PIPE CONNECTION PREPARATIONS CAUTION set or procured at the site) to the wall hole pipe.
  • Page 126 ELECTRICAL WIRING 1. CONNECTION DIAGRAM Fig. 12 POWER Fig. 9 WARNING Connection cord WARNING (1) Before starting work, check that power is not being sup- (1) The rated voltage of this product is 220-240 V A.C. plied to indoor unit and the outdoor unit. 50 Hz.
  • Page 127 ELECTRICAL REQUIREMENT INSTALLATION PROCEDURE CONNECTING THE PIPE 2. BENDING PIPES (4) When the flare nut is tightened properly by your hand, use a torque SPLIT TYPE AIR CONDITIONER wrench to finally tighten it. The pipes are shaped by your hands. Be careful not to collapse them. •...
  • Page 128 ELECTRICAL WIRING 1. CONNECTION DIAGRAMS (2) Valve cover removal. (5) Power supply cord and connection cord should be fixed with cable • Remove the one mounting screw. clip as shown in the figure. • Remove the valve cover by sliding upward. Power supply Fill in a gap at the entrance of the cords with insulation (seal).
  • Page 129 R410A DUCT type INVERTER 10 . REPLACEMENT PARTS...
  • Page 130 1. REPLACEMENT PARTS (For OUTDOOR UNIT) 1-1 For AO*18/ 24LMAKL 1-1-1 PARTS LAYOUT DRAWING Active Filter Module Main PCB Heat Exchanger Accumulator Fan motor 4-way valve Solenoid PTC Thermistor Pressure SW Thermistor (Discharge temp.) Coil (Expansion valve)& Expansion valve Compressor 10-01...
  • Page 131 Thermo Holder& Thermistor (Outdoor Temp.) 2-way valve (Liquid) Thermistor 3-way valve (Heat exchanger temp.) (Gas) 10-02...
  • Page 132 1-1-2 WIRING (For AO*18/ 24LMAKL) Compressor wire CLAMP Solenoid wire Fan motor wire Fan capacitor wire BIND Thermistor (Discharge temp.) Thermistor (Compressor temp.) Thermistor (Heat exchanger temp.) Thermistor (Outdoor temp.) ENLARGED DETAIL PTC Thermistor Coil (Expansion valve) Pressure SW BIND (Thermistor (Outdoor temp.)) BIND (Thermistor (Heat exchanger temp.))
  • Page 133 1-1-3 DISASSEMBLY PROCESS (For AO*18/ 24LMAKL) 1. TOP PANEL removal Remove the 5 mounting screws. Remove the TOP PANEL upward. TOP PANEL REAR VIEW 2. CONTROL BOX COVER removal Remove the 3 mounting screws. Remove the CONTROL BOX COVER and TERMINAL COVER. CONTROL BOX COVER TERMINAL COVER 10-04...
  • Page 134 3. MAIN PCB removal Remove the 4 mounting screws. Remove the connectors and cords. (Refer to VIEW -A,-B) Remove the MAIN PCB. Active Filter Module SCREW Twist 3 times or more Fan motor Thermistor Pressure SW (Heat sink) (Red) Solenoid (Black) (White) White...
  • Page 135 4. FRONT PANEL removal Remove the 4 mounting screws. Remove the FRONT PANEL by sliding upward. Hook (2 places) Replaceable Component Compressor Accumulator Solenoid Thermistor (Discharge temp.) Thermistor (Outdoor temp.) PTC Thermistor Pressure SW Coil (Expansion valve) FRONT PANEL Hook Fan motor &...
  • Page 136 6. RIGHT PANEL removal Remove the 9 mounting screws. Hook Hook Hook Remove the RIGHT PANEL by sliding upward. RIGHT PANEL Replaceable Component Thermistor (Heat exchanger temp.) 10-07...
  • Page 137 1-2 For AO*30/ 36LMAWL 1-2-1 PARTS LAYOUT DRAWING Active Filter Module Heat Exchanger Thermistor (Heat sink) Main PCB Fan motor Filter PCB 4-way valve Accumulator Solenoid Thermistor (Compressor temp.) Compressor Choke coil Thermistor (Discharge temp.) VIEW - A 10-08...
  • Page 138 Thermo Holder& Thermistor (Outdoor Temp.) Check valve Pressure SW Coil (Expansion valve)& Expansion valve 3-way valve (Liquid) Thermistor (Heat exchanger temp.) 3-way valve (Gas) 10-09...
  • Page 139 1-2-2 WIRING (For AO*30/ 36LMAWL) CLAMP & BIND Thermistor (Discharge temp.) wire Thermistor (Outdoor temp.) wire Thermistor (Compressor temp.) wire Thermistor (Heat exchanger temp.) wire Coil (Expansion valve) wire Pressure SW wire CLAMP (Compressor wire) CLAMP (Fan motor wire) CLAMP (Solenoid wire) BIND (Compressor wire...
  • Page 140 1-2-3 DISASSEMBLY PROCESS (For AO*30/ 36LMAWL) 1. SERVICE PANEL removal Remove the 2 mounting screws. Remove the SERVICE PANEL by sliding downward. Replaceable Component Compressor Accumulator 4-way valve Solenoid Thermistor (Compressor temp.) Thermistor (Discharge temp.) Hook Thermistor (Outdoor temp.) (3 places) Thermistor (Heat exchanger temp.) Pressure SW Coil (Expansion valve)
  • Page 141 3. INVERTER BOX removal Remove the 5 mounting screws. Remove the connectors and cords. (Refer to VIEW -C,-D) Remove the INVERTER BOX upward. REAR VIEW FRONT VIEW Remove power supply & Remove the connectors Remove the connectors Connection cord. Terminal VIEW - C Choke coil VIEW - D...
  • Page 142 Remove the 1 mounting screw. Remove the INVERTER BOX COVER upward. INVERTER BOX COVER Hook (2 places) Remove the connector and cords. Twist W6 and W7 Twist W4 and W5 4 times or more. 2 times or more. CN1 (Black/Brown/Red) W7 (White) W5 (White) W4 (Black)
  • Page 143 Remove the connector and cords. Twist 4 times or more 2 turn the Wire this way " - " (Black) " L2 " (Brown) Thermistor (Heat sink) " + " (Red) " L1 " (White) CN407 " P " (Yellow) "...
  • Page 144 Remove the 6 mounting screws. Remove the INVERTER BOX A upward. INVERTER BOX A REAR VIEW LEFT SIDE VIEW Filter PCB Main PCB Remove the 2 mounting screws. Remove the 1 mounting screw. Remove the Filter PCB upward. Remove the Main PCB upward. Hook (3 places) Hook (2 places) Main PCB...
  • Page 145 1-2-4 ASSEMBLY PROCESS of INVERTER UNIT (For AO*30/ 36LMAWL) 1. FILTER PCB As shown in Fig.1, assemble FILTER PCB to INVERTER BOX A. As shown in Fig.2, pull out the wires of FILTER PCB. Hook (2 places) Screw (2 places) INVERTER BOX A FILTER PCB Fig.1...
  • Page 146 As shown in Fig.4, pull out the wires. W16 (Red) W17 (Black) Thermistor (Heat sink) W303 (Black) W304 (White) W305 (Red) CN407 Fig. 4 As shown in Fig.5, pull out the wires and fix them. Hook (2 places) W12 (Yellow) W13 (Blue) W17 (Black) W16 (Red)
  • Page 147 As shown in Fig.6, pull out the wires. W200 (Red) Fig. 6 As shown in Fig.7, pull out the wires. W200 (Red) HYIC1 CN1 wire with connector Fig. 7 Don't come in contact with HYIC1. DETAIL - A 10-18...
  • Page 148 As shown in Fig.8, connect wires. CN34 (Yellow) CN1 (White) Fig. 8 As shown in Fig.9, connect wires. W21 (Orange) W22 (Orange) PTC Thermistor Through this hole. TM101 (Black line) TM102 (White line) Fig. 9 10-19...
  • Page 149 As shown in Fig.10, fix the wire to INVERTER BOX A. Pull out the wire Hook (3 places) Thermistor (Heat sink) through this opening CN407 Fig. 10 As shown in the figures, set wire with connector and bind it to INVERTER BOX A. Bind wire to INVERTER BOX A.
  • Page 150 1-3 For AO*45LJ*YL/ 54LJAYL 1-3-1 PARTS LAYOUT DRAWING Active Filter Module Thermistor (Heat sink) Heat Exchanger D,Power (Bridge) Main PCB Filter PCB Fan motor Choke coil 4-way valve Thermistor (Discharge temp.) Solenoid Accumulator Thermistor (Compressor temp.) Compressor 10-21...
  • Page 151 Thermo Holder& Thermistor (Outdoor Temp.) Pressure SW Check valve Coil (Expansion valve)& Expansion valve 3-way valve (Liquid) 3-way valve (Gas) Thermistor (Heat exchanger temp.) 10-22...
  • Page 152 1-3-2 WIRING (For AO*45LJ*YL/ 54LJAYL) CLAMP (Compressor wire) BIND Don't use this (Thermistor (Discharge temp.)) CABLE CLIP. (Thermistor (Compressor temp.)) (Thermistor (Heat exchanger temp.)) (Coil (Expansion valve)) CLAMP (Compressor wire) CLAMP & BIND Thermistor (Discharge temp.) wire Thermistor (Outdoor temp.) wire Thermistor (Compressor temp.) wire Thermistor (Heat exchanger temp.) wire Coil (Expansion valve) wire...
  • Page 153 Thermistor(Outdoor temp.) Coil (Expansion valve) CLAMP with U PIPE (Thermistor (Heat exchanger temp.)) (Coil (Expansion valve)) Thermistor (Heat exchanger temp.) ENLARGED DETAIL 10-24...
  • Page 154 1-3-3 DISASSEMBLY PROCESS (AO*45LJ*YL/ 54LJAYL) 1. SERVICE PANEL removal Remove the 2 mounting screws. Remove the SERVICE PANEL by sliding downward. Hook (3 places) Replaceable Component Compressor Accumulator 4-way valve Solenoid Thermistor (Compressor temp.) Thermistor (Discharge temp.) Thermistor (Outdoor temp.) Thermistor (Heat exchanger temp.) Pressure SW Coil (Expansion valve)
  • Page 155 2. TOP PANEL removal Remove the 7 mounting screws. Remove the TOP PANEL upward. FRONT VIEW REAR VIEW 10-26...
  • Page 156 3. INVERTER BOX removal Remove the 4 mounting screws. Remove the connectors and cords. (Refer to VIEW -C,-D) Remove the INVERTER BOX upward. REAR VIEW FRONT VIEW Remove power supply & Remove the connectors Remove the connectors Connection cord. Terminal VIEW - C Choke coil VIEW - D...
  • Page 157 Remove the 1 mounting screw. Remove the INVERTER BOX COVER upward. INVERTER BOX COVER Hook (2 places) Remove the connector and cords. Twist W6 and W7 2 times or more. W1 (Black) W6 (Black) W7 (White) W2 (White) W200 (Red) VIEW - E 10-28...
  • Page 158 Remove the connector and cords. " " (White) D,Power (Bridge) " " (Gray) " L2 " (Brown) " - " (Black) " L1 " (White) " + " (Red) Thermistor (Heat sink) CN407 BIND " P " (Yellow) " N1 " (Blue) "P"...
  • Page 159 Remove the 6 mounting screws. Remove the INVERTER BOX A upward. INVERTER BOX A REAR VIEW LEFT SIDE VIEW Filter PCB Main PCB Remove the 2 mounting screws. Remove the 1 mounting screw. Remove the Filter PCB upward. Remove the Main PCB upward. Hook (3 places) Hook (2 places) Main PCB...
  • Page 160 1-3-4 ASSEMBLY PROCESS of INVERTER UNIT (For AO*45LJ*YL/ 54LJAYL) 1. FILTER PCB As shown in Fig.1, assemble FILTER PCB to INVERTER BOX A. As shown in Fig.2, pull out the wires of FILTER PCB. Hook (2 places) Screw (2 places) INVERTER BOX A FILTER PCB Fig.1...
  • Page 161 As shown in Fig.4, pull out the wires. Thermistor (Heat sink) CN407 W303 (Black) W304 (White) W305 (Red) Fig. 4 As shown in Fig.5, pull out the wires and fix them. W303 (Black) W304 (White) Hook (2 places) W305 (Red) W107 (White) W108 (Violet) CN407...
  • Page 162 As shown in Fig.6, pull out the wires. W200 (Red) CN1 wire with connector Fig. 6 HYIC1 Don't come in contact with HYIC1. VIEW - A As shown in Fig.7, connect wires. CN34 (Yellow) CN1 (White) Fig. 7 10-33...
  • Page 163 As shown in Fig.8, connect wires. W108 (Violet) W107 (White) Gray line Make White line on Black line Twist 5 times or more. Through this hole. TM101 (Black line) TM102 (White line) Fig. 8 10-34...
  • Page 164 As shown in Fig.9, fix the wire to INVERTER BOX A. Pull out the wire Hook (3 places) through this opening Thermistor (Heat sink) CN407 Fig. 9 As shown in the figures, set wire with connector and bind it to INVERTER BOX A. Bind wire to INVERTER BOX A.
  • Page 165 2. REPLACEMENT PARTS (For INDOOR UNIT) 2-1 PARTS LAYOUT DRAWING (For AR*18LUAD) 1. CONTROL BOX COVER removal Remove the 4 mounting screws. Remove the CONTROL BOX COVER. CONTROL BOX COVER 2. Wiring and Parts layout Thermistor (Heat Exchanger temp.) CN17 (Remocon) Capacitor,Plastic Terminal Main PCB...
  • Page 166 3. COVER (CABINET) removal Remove the 4 mounting screws. Remove the COVER (CABINET). COVER (CABINET) 4. DRAIN PAN removal Remove the 4 mounting screws. Remove the DRAIN PAN. DRAIN PAN 10-37...
  • Page 167 5. THERMISTOR removal Remove the Thermistor (Heat Exchanger temp.). Thermistor (Heat Exchanger temp.) Thermistor spring Detail View Remove the 1 mounting screw. Remove the Thermistor (Room temp.). Thermistor (Room temp.) 10-38...
  • Page 168 6. CASING & SIROCCO FAN removal Remove the 2 Hex socket screws. Remove the 8 mounting screws. Remove the CASING and SIROCCO FAN. CASING SIROCCO FAN CASING SIROCCO FAN ROTATION MARK HANG ON MOTOR SHAFT SIROCCO FAN HEX SOCKET SCREW 10-39...
  • Page 169 7. FAN MOTOR removal Remove the 4 mounting bolts. Remove the FAN MOTOR. BRACKET (MOTOR) RUBBER (VIBRATION PROOF) RUBBER (VIBRATION PROOF) FAN MOTOR 10-40...
  • Page 170 2-2 PARTS LAYOUT DRAWING (For AR*24/ 30/ 36/ 45LUAN) 1. CONTROL BOX COVER removal Remove the 2 mounting screws. Remove the CONTROL BOX COVER. CONTROL BOX COVER 2. INTAKE COVER removal Remove the 10 mounting screws. Remove the INTAKE COVER. INTAKE COVER 10-41...
  • Page 171 3. MAIN PANEL removal Remove the 11 mounting screws. Remove the MAIN PANEL. MAIN PANEL 4. DRAIN PAN removal Remove the 2 mounting screws. Remove the DRAIN PAN. DRAIN PAN EVA ASSY 10-42...
  • Page 172 5. CASING A removal Remove the 8 mounting screws. Remove the CASING A. HOOK VIEW A 10-43...
  • Page 173 6. FAN MOTOR removal Remove the 2 mounting screws. Remove the RFM(MOTOR BAND). RFM(MOTOR BAND) Remove the 2 mounting bolts. Remove the MOTOR BAND A and B. HOOK(4 places) MOTOR BAND B MOTOR BAND A Remove the FAN MOTOR. 10-44...
  • Page 174 7. Wiring and Parts layout Remocon Thermistor(Room temp.) CABLE CLIP WIRE ASSY (FAN MOTOR) Main PCB CABLE CLIP Filter PCB VIEW B CN107 BIND CAPACITOR For AR*30/ 36/ 45LUAN WHITE Thermistor(Room temp.) BLACK VIEW C CN101 CN113 Thermistor CN116 (Room temp.) CN105 10-45...
  • Page 175 (Remocon) CN103 CN108 CN104 (Capacitor) 10-46...
  • Page 176 2-3 PARTS LAYOUT DRAWING (For AR*45/ 54LUAK) 1. CONTROL BOX COVER removal Remove the 2 mounting screws. Remove the CONTROL BOX COVER. CONTROL BOX COVER 2. DRAIN PAN(SAFETY) removal Remove the 4 mounting screws. Remove the DRAIN PAN(SAFETY). DRAIN PAN(SAFETY) 10-47...
  • Page 177 3. DRAIN PAN removal Remove the 2 mounting screws. Remove the DRAIN PAN. DRAIN PAN 4. THERMISTOR removal Remove the Thermistor (Heat Exchanger temp.). Thermistor spring Thermistor (Heat Exchanger temp.) Detail View 10-48...
  • Page 178 6. CASING & SIROCCO FAN removal Remove the 8 mounting screws. TURN SECTION A-A / B-B 10-49...
  • Page 179 Remove the 2 mounting screws. Remove the CASING ASSY. CASING ASSY Driver Remove the 8 mounting screws. Remove the SIROCCO FAN. CASING A CASING B SIROCCO FAN VIEW A 10-50...
  • Page 180 7. FAN MOTOR removal Remove the 4 mounting nuts. Remove the BRACKET(MOTOR). Remove the FAN MOTOR. BRACKET(MOTOR) FAN MOTOR STOPPER BRACKET(MOTOR) STOPPER SECTION D-D 10-51...
  • Page 181 8. Wiring and Parts layout CAPACITOR BLACK WHITE BIND Filter PCB CN101 CABLE CLIP W105 CN113 CN116 CN103 Main PCB CN105 CN104 BIND BLUE WHITE BLACK BLACK WHITE CN117 10-52...
  • Page 182 1116,Suenaga,Takatsu-ku,Kawasaki 213-8502,Japan June. 2006 Printed in Japan...

This manual is also suitable for:

Ar 24luan seriesAr 30luan seriesAr 36luan seriesAr 45luan seriesAr 45luak seriesAr 54luak series ... Show all

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