AirStage J series Service Manual
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AirStage J series Service Manual

Multi air conditioning system for buildings variable refrigerant flow system
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R410A
SERIES
Variable Refrigerant Flow System
Multi Air Conditioning System for Buildings
Model : AO54U
AO54F
HEAT PUMP & COOLING ONLY TYPE

SERVICE MANUAL

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  • Page 1: Service Manual

    R410A SERIES Variable Refrigerant Flow System Multi Air Conditioning System for Buildings Model : AO54U AO54F HEAT PUMP & COOLING ONLY TYPE SERVICE MANUAL...

  • Page 2: Table Of Contents

    CONTENTS 1. TEST RUN 1-1 PRE SETTING ..........................01-01 1-1-1 CUSTOM CODE SETTING ......................01-01 1-1-2 ADDRESS SETTING ........................01-02 1-2 CHECK ITEM ............................ 01-04 1-2-1 CHECK ITEM BEFORE TEST RUN ....................01-04 1-2-2 CHECK ITEM DURRING TEST RUN ..................... 01-05 1-3 TEST RUN METHOD ........................
  • Page 3 CONTENTS 3. INVERTER CONTROL 3-1 INVERTER CONTROL ........................03-01 3-1-1 WHAT IS INVERTER? ........................03-01 3-1-2 INVERTER BLOCK OF OUTDOOR UNIT ..................03-01 3-1-3 BASIC CIRCUIT OF 3 PHASE INVERTER ..................03-02 3-1-4 PWM CONTROL ..........................03-02 3-2 CIRCUIT DISCRIPTION ........................
  • Page 4 CONTENTS 5. INDOOR UNIT OPERATION CONTROL 5-1 FAN CONTROL ..........................05-01 5-1-1 FAN SPEED SETTING ........................05-01 5-1-2 "AUTO" POSITION ......................... 05-01 5-2 MASTER CONTROL ........................05-02 5-2-1 OPERATION MODE CONTROL ....................05-02 5-2-2 AUTO CHANGEOVER ........................05-02 5-2-3 "COOL" POSITION .........................
  • Page 5 CONTENTS 7. INSTALLATION 7-1 ADDITIONAL CHARGE ........................ 07-01 7-2 EXAMPLES OF SYSTEM SETTING ..................07-02 7-3 PRECAUTIONS FOR INSTALLATION ..................07-08 7-4 PUMP DOWN METHOD ........................ 07-10 7-4-1 PROCEDURE OF THE PUMP DOWN ................... 07-10 7-4-2 A FLOW CHART OF PUMP DOWN ....................

  • Page 6: Test Run

    R410A SERIES 1 . TEST RUN...

  • Page 7: Pre Setting

    1. TEST RUN 1-1 PRE SETTING 1-1-1 CUSTOM CODE SETTING Code change Confusion Indoor unit Remote controller When changing the custom code, follow the instruction below Selecting the custom code prevents the indoor unit mix-up. (Up to 4 codes can be set) CUSTOM CODE SETTING FOR INDOOR UNIT AU TYPE AS 7-14 TYPE...

  • Page 8: Address Setting

    1-1-2 ADDRESS SETTING 1. Switching selection of address setting mode. (1) Press and hold 3 sec the "MANUAL AUTO" button (2) Press the ACL button, while pressing the of Receiver unit. FAN CONTROL and SET TEMP (+) button. Pi Pi Pi Sound OPERATION FAN CONTROL...
  • Page 9 (5) Press the START/STOP button and make sure the (6) Indoor unit is displayed address number. beeping sound is heard. OPERATION TIMER (RED) (GREEN) continuously Flashing times of PiPi address numbers PiPiPi (Example) ADDRESS : 03 OPERATION LAMP (RED) TIMER LAMP (GREEN) 4.

  • Page 12: Check Item

    Check item Checking Method Standard After operating the indoor unit, Check operation sound and Outdoor unit LED 3 : flushing the compressor operates? the LED of outdoor unit PCB. High pressure and low pressure Confirm with a pressure gauge Cooling : Low pressure 101.5 to 130.5 psi (approx.) ( 0.7 to 0.9 MPa ) are normal? Heating : High pressure 319.1 to 391.6 psi (approx.)

  • Page 13: Test Run Method

    1-3 TEST RUN METHOD Always turn on the power 4 hours prior to the start of the operation in order to ensure compressor protection. 1-3-1 TEST RUN FROM OUTDOOR PC BOARD By setting DIP SW1-1 and SW1-2 on control PC board of outdoor unit, cooling test run for all the indoor units in the same refrigerant system can be performed.

  • Page 14: Test Run Control

    3) Simple remote controller Stop the indoor and outdoor units. Push the remote controller button and button simultaneously for more than three seconds. The air conditioner will start to conduct a test run and " " will display on the temperature display. setting button does not have function but all other buttons, However the displays and protection functions will operate.

  • Page 15: Function Of Printed Circuit Board

    R410A SERIES 2 . FUNCTION OF PRINTED CIRCUIT BOARD...

  • Page 16: Pcb Layouts

    2. FUNCTION OF PRINTED CIRCUIT BOARD 2-1 PCB LAYOUTS 2-1-1 INDOOR UNIT CONTROL CIRCUIT BOARD Indoor unit Forbidden Forbidden SW 1 Room temp correct coefficient of heating 1 Room temp correct coefficient of heating 2 Room temp correct coefficient of cooling Forbidden SW 2 Forbidden...
  • Page 17 (COMPACT WALL MOUNTED TYPE) Indoor unit Forbidden(Indoor unit fan speed switch 1) Forbidden(Indoor unit fan speed switch 2) SW 1 Forbidden(Indoor unit model code) Forbidden(Indoor unit model code) DIP SW Forbidden Forbidden SW 2 Auto restart validity / invalidity Forbidden JM 1 Jumper Wireless remote controller custom code...

  • Page 18: Outdoor Unit Control Circuit Board

    2-1-2 OUTDOOR UNIT CONTROL CIRCUIT BOARD Outdoor unit Test run (Cooling) Test run (Heating) SW 1 Pump down operation Forced oil recovery operation Silent operation mode Forbidden SW 2 Electric current selector switch 1 Electric current selector switch 2 Forbidden Forbidden SW 3 Forbidden...
  • Page 19 CN52 EX,IN-2 (GREEN) CN48 EX,IN-1 EX,OUT-2 (YELLOW) (BLUE) CN50 LED4 LED1 EX,OUT-1 LED2 LED5 (BLACK) LED6 LED3 CN49 Switching Transformer SW201 02-04...

  • Page 20: Wired, Simple Remote Controller

    2-1-3 WIRED, SIMPLE REMOTE CONTROLLER Wired remote controller Factory setting 1 Dual remote controller setting 2 Dual remote controller setting 3 Forbidden DIP SW 4 Model setting 5 Auto changeover setting 6 Memory backup setting Simple remote controller Factory setting 1 Dual remote controller setting 2 Dual remote controller setting 3 Forbidden...

  • Page 21: Group Remote Controller

    2-1-4 GROUP REMOTE CONTROLLER Group remote controller Factory setting Memory backup setting DIP SW Forbidden Front case (back side) DIP SW 02-06...

  • Page 22: External Switch Controller

    2-1-5 EXTERNAL SWITCH CONTROLLER Factory External switch controller setting MODE setting Delay-time setting : Set to ON for switching operation mode in 1 minute after contact. SW 1 Forbidden SW 2 Operation mode setting of parameter setting 1 (P1) DIP SW SW 3 Setting contact input of SW1 at MODE 0 Operation conditions :...

  • Page 23: Microprocessor Function List

    2-2 MICROPROCESSOR FUNCTION LIST 2-2-1 INDOOR UNIT Compact Thin Large Compact Static INDOOR UNIT TYPE Cassette Cassette Cassette Duct Pressure Duct MODEL CODE 20 (22) AC IN TH. FUSE FAN CAPA FAN MOTOR D. PUMP CN10 SP-M (U,D) CN11 SP-M (R,L) CN12 HEATER CN13 DISPLAY CN14 E.E.VALVE...
  • Page 24 INDOOR UNIT TYPE Wall Mounted MODEL CODE TH. FUSE FAN MOTOR FAN MOTOR D. PUMP DIFFUSER/SP-M(U,D) SP-M(L/R) DISPLAY-1 DISPLAY-2 CN10 F. BACK CN11 TEST CN12 E.E.VALVE CN13 REMOCON CN14 FLOAT CN15 NETWORK CN16 R.-TH CN17 P-TH CN19 FLASH CN20 HEATER CN21 EX.
  • Page 25 INDOOR UNIT TYPE Compact Wall Mounted MODEL CODE POWER-PWB FAN F. BACK E. E. VALVE SP MOTOR(U,D) DISPLAY ROOM TH. PIPE TH. TEST FLASH CN10 EX. IN CN11 EX. OUT CN12 COMMUNICATION-PWB CN101 MAIN-PWB CN102 FAN MOTOR CN103 TRANS-P CN104 TRANS-S CN105 TH.

  • Page 26: Outdoor Unit

    2-2-2 OUTDOOR UNIT OUTDOOR UNIT TYPE AO54UJA AO54FJA AC IN FAN MOTOR1 S.V.1 S.V.2 4W.V.1 CRANK CASE HEATER BASE HEATER CN10 DC IN CN11 CN12 POWER RELAY CN13 ACTIVE P.M. CN14 IPM-DRIVE CN15 IPM-POWER1 CN16 IPM-POWER2 CN17 E.E.V.1 CN19 PRESSURE SWITCH Hi CN20 PRESSURE SWITCH Lo CN21...

  • Page 27: Function And Setting Of Each Switch

    2-3 FUNCTION AND SETTING OF EACH SWITCH 2-3-1 INDOOR UNIT 2-2-2 DIP-SW FUNCTION (INDOOR UNIT) (1) SW1 setting 1-1 DIP SW 1-1 and SW 1-2 setting forbidden Factory setting) SW1-1 SW1-2 1-2 Room temperature correct coefficient of heating. Decide the heating temperature correct coefficient value for room temperature thermistor. The overall room temperature increases when a larger coefficient value is used.
  • Page 28 2-4 Auto restart validity / invalidity. Control the auto restart function by turning this switch ON/OFF. Factory setting) AUTO RESTART SETTING SW2-4 Auto restart Invalidity Validity SW3 setting (Never change at the site) 3-1 Indoor unit fan speed switch This switch can select fan speed corresponding to each model. Cassette type AU20 AU30...
  • Page 29 (3) SW4 setting (Never change at the site) Indoor unit model code. This switch for changing the model code information of indoor unit PCB. INDOOR UNIT MODEL CODE MODEL CODE 25(24) 20(22) Type SW4-1 SW4-2 SW4-3 SW4-4 (4) SW5 setting 5-1 Wireless remote controller custom code switch Decid the custom code and restrict the type of infrared control signal, in order to prevent mixing of multiple indoor unit signals.
  • Page 30 Input Connector Indoor unit type Output Remarks Wall mounted CN21 CONTROL INPUT (OPERATION / STOP) CN27 Other types See 2-4-1 OPERATION DISPLAY CN22 (DC12V) for details ERROR DISPLAY CN23 All types (DC12V) INDOOR UNIT FAN CN24 STATUS DISPLY(DC12V) 02-15...
  • Page 31 SWITCH FUNCTION (COMPACT WALL MOUNTED TYPE) (1) SW1 setting (Never change at the site) 1-1 Fan speed setting switch The fan speed corresponding to each model is set with the switch. AS12 AS14 SW1-1 SW1-2 1-2 Model code setting switch The model code infomation corresponding to each model is provided with the switch.
  • Page 32 Connector Input Output Remarks CONTROL INPUT See 2-4-1 CN10 (OPERATION / STOP) Edge select for details OPERATION DISPLAY CN11 (DC12V) Wireless remote controller custom code switch Limit the type of infrared control signal which the indoor unit is controlled,in order to prevent misoperation of the unit due to the signal from other wirless remote controller.

  • Page 33: Outdoor Unit

    2-3-2 OUTDOOR UNIT (1) SW1 setting 1-1 Test run ( cooling & Heating ) All the indoor units connected to the outdoor unit can be test-operated by DIP switch setting. SELECTOR SWITCH FOR TEST RUN AND NORMAL OPERATION Factory setting) SW1-1 Test Run Remarks...
  • Page 34 2-3 Electric current selector switch 1 and 2 Upper limit of electric current is set by DIP switches 2-3 and 2-4 according to the current limit. Depending on the local power supply condition ,the breaker capacity can be selected in 4 steps. Factory setting) SW2-3 SW2-4...
  • Page 35 (6) SW6 setting 6-1 Pipe length switch SW setting can provide the operation to supplement the loss created by the pipe length. Factory setting) SW 6-1 SW 6-2 Recommended Range of L (m) PIPE LENGTH < = 7.5 < L Standard <...
  • Page 36 (8) SW8 setting 8-1 System type switch 3 and 4 Refrigerant system type can be set by DIP switches 8-1 and 8-2 Refrigerant system type Factory setting) SW8-1 SW8-2 System type VRF type Forbidden Forbidden Forbidden 8-2 SW 8-3 and 8-4 DIP SW 8-3 and 8-4 setting Forbidden SW8-3 SW8-4...

  • Page 37: Dip-Sw Function (Wired, Simple Remote Controller)

    2-3-3 DIP-SW FUNCTION (WIRED, SIMPLE REMOTE CONTROLLER) Always set the DIP SW before turning the power on. DIP SWITCH SETTING (1) Dual remote controller setting Two separate remote controllers can be used to operate the same indoor unit. Set the DIP SW 1,2 according to the following table. Indoor unit .

  • Page 38: Dip-Sw Function (Group Remote Controller)

    2-3-4 DIP-SW FUNCTION (GROUP REMOTE CONTROLLER) Set DIP switch to ON to enable the memory backup. 1-1 Memory backup setting If batteries are not used, all of the settings stored in memory will be deleted if there is a power failure. Factory setting) Memory backup Invalidity...

  • Page 39: Dip-Sw Function (External Switch Controller)

    2-3-5 DIP-SW FUNCTION (EXTERNAL SWITCH CONTROLLER) External input cord Remote controller cord WIRING DIAGRAM SW 1 SW 2 INDOOR UNIT EXTERNAL SWITCH CONTROLLER Note: Note: EXTERNAL SWITCH About DIP Switch of the controller SW1, SW2 for connect input Please refer to 2-1-9 'External Switch (SW2 only when it is necessary) Controller Circuit Board' (1) SW1 setting...
  • Page 40 (2) SW2, SW3 setting 2-1 Operation mode setting Set DIP SW2 and 3 for P1, according to the following table. SW2-3 SW2-4 SW2-5 SW2-6 Set temperature SW2-1 SW2-2 Operation Not applicable Not applicable °C *2*3 °C *2*3 SET BACK °C °C SW3-1 SW3-2...
  • Page 41 (3) SW4, SW5 setting 3-1 Operation mode setting Set DIP SW4 and 5 for P2, according to the following table. SW4-3 SW4-4 SW4-5 SW4-6 Set temperature SW4-1 SW4-2 Operation Not applicable Not applicable °C *2*3 °C *2*3 SET BACK °C °C SW5-1 SW5-2...

  • Page 42: External Input & Output

    2-4 EXTERNAL INPUT & OUTPUT 2-4-1 INDOOR UNIT (1) Control input (Operation/Stop) Indoor unit can be operated or stopped by using CN27 of indoor unit PCB Requirement for control input: Resistance 500 (ohm) (Switch : ON) Resistance 100 (kilo-ohm) (Switch : OFF) A twisted pair cable [22AWG, wire length 25m] should be used.
  • Page 43 (2) Output Requirement for output: A twisted pair cable [22AWG, wire length 25m] should be used. Connector Output Status 2.0V ( 15mA) Operation CN22 (WHITE) 2.0V Stop 2.0V ( 15mA) Error CN23 (WHITE) 2.0V Normal 2.0V ( 15mA) Fan run CN24 (WHITE) 2.0V...

  • Page 44: Indoor Unit (Compact Wall Mounted)

    2-4-2 INDOOR UNIT (COMPACT WALL MOUNTED) (1) Control input (Operation/Stop) Indoor unit can be operated or stopped by using the connector CN10(RED) on indoor unit PCB. CONNECTOR INPUT SIGNAL COMMAND Ch 1 1 CN 10 Operation (RED) CN10 (RED) Stop <...

  • Page 45: Outdoor Unit

    2-4-3 OUTDOOR UNIT (1) Input Heat and Cool switch (Heat pump type only) "Cooling priority" or "Heating priority" can be selected by this input. CONNECTOR INPUT STATUS REMARKS SIGNAL Remote Controller priority CN50 (YELLOW) External input priority Cooling priority CN50 need to CN52 be "ON".

  • Page 46: Group Remote Controller Converter

    2-4-4 GROUP REMOTE CONTROLLER CONVERTER (1) Control input Input select 7 Segment Input select External input function invalidity Edge Pulse Refer to the next page for setting operation. In the case of "Edge" input Connector Input Signal Command All ON CN451 All OFF CN 1...
  • Page 47 In the case of "pulse" input Connector Input signal Command All ON CN451 All OFF < Operation > When it inputs GND short signal of 200ms or more to terminal 1, it transfers this operation signal to all indoor units on this network.
  • Page 48 (1) Group remote controller converter (How to set operation) Setting of external input function selection. It is necessary to set a initial parameter setting on the PCB of thegroup remote converter. An external input setting is invalid on factory setting. It set up to use the button on the main PCB. At first, connect indoor unit, Group remote converter and Group remotecontroller.
  • Page 49 Select the input method of an external input with the key "UP" or "DOWN" setting. Set value External input function External input function invalidity Edge input Pulse input Push "SET" button. When the "SET" button is pushed, all digits of 7 segment (monitor lamp) blinks once. Push "MODE"...

  • Page 50: Inverter Control

    R410A SERIES 3 . INVERTER CONTROL...

  • Page 51: Inverter Control

    3. INVERTER CONTROL 3-1 INVERTER CONTROL 3-1-1 WHAT IS INVERTER "Inverter" is the word used against "Converter", and it is the equipment to change DC to AC. Converter (Transformer) : To transform AC to DC (Rectifier) Inverter (Reverse Transformer) : To transform DC to AC As a generic term, the equipment that varies the output (Frequency or Voltage) is normally called as Inverter.

  • Page 52: Basic Circuit Of 3 Phase Inverter

    3-1-3 BASIC CIRCUIT OF 3 PHASE INVERTER time MOTOR U – V V – W By changing the ON-OFF cycle of the switch, the By changing the ON-OFF cycle of the switch, the rotation of the motor can be varied at the desired rotation of the motor can be varied at the desired W –...

  • Page 53: Circuit Discription

    3-2 CIRCUIT DISCRIPTION 3-2-1 POWER SUPPLY CIRCUIT Varistor When an abnormal voltage is applied between the terminal of varistor (VA101), it shorts out and the circuit protection is carried out. Surge Absorber The surge absorber is a protection part as same as varistor for the electronic parts of outdoor unit against abnormal voltage such as lightening and it discharges the lightening surge.

  • Page 54: Choke Coil

    3-2-5 CHOKE COIL It conditions the current waveform and removes the noise. 3-2-6 ACTIVE FILTER MODULE The input current is corrected by the microcomputer inside the module and the boosting chopper circuit, and the waveform with 100% of power factor is supplied to the output. It improves the power factor, and controls the power supply harmonic wave current.

  • Page 55: Dc Motor (Dc Inverter)

    3-2-9 DC MOTOR (DC INVERTER) The rotor of DC compressor motor is made of permanent magnet, and it creates the revolving magnetic field by applying the voltage that is obtained by PAM control to the stator winding. And the pull and repulsion between the rotating magnetic field and the permanent magnet creates the force toward the same direction of the rotating magnetic field, and the rotor rotates.

  • Page 56: Outdoor Unit Operation Control

    R410A SERIES 4 . OUTDOOR UNIT OPERATION CONTROL...

  • Page 57: Operation

    4. OUTDOOR UNIT OPERATION OPERATION CONTROL 4-1 OPERATION 4-1-1 INPUT / OUTPUT LIST Input / output parts or kind of detail Control range Discharge temperature sensor 1 Thermistor Measure range: 30 130°C Heat exchanger liquid temperature sensor 1 Thermistor Measure range: -30 70°C Heat exchanger temperature sensor (Middle) Thermistor...

  • Page 58: Operation / Stop Condition

    4-1-2 OPERATION / STOP CONDITION Compressor operation condition When cooling requirement capacity of the indoor units in the same refrigerant system is input, the compressor operates. But in the following case, the compressor operates in accordance with operation of each mode. During 3 minute restart prevention operation During deicing operation Failure (except for a part)

  • Page 59: Compressor Operation

    4-2 COMPRESSOR OPERATION 4-2-1 CAPACITY CONTROL COOLING The rotation speed of the compressor is decided basing on the sum of the required refrigerant amount from the connected indoor units. HEATING The rotation speed of the compressor is decided by detecting the indoor heat exchanger mid temperature of the connected indoor units which is running on heating mode, so that the temperature reaches to the target temperature.

  • Page 60: Fan Control

    4-3 FAN CONTROL 4-3-1 COOLING OPERATION The fan speed selection during the cooling operation is performed by the heat exchanger mid temperature value TH When operating on cooling mode from the halt condition, it operates with "initial fan speed" or the fan speed memorized.

  • Page 61: Expansion Valve Control

    4-4 EXPANSION VALVE CONTROL (1) Initialization When power in turned on When the operation mode becomes off (2) Number of pulse at the stop operation 500 pulses (3) Operation Control During the operation, the electronic expansion valve detects the discharge gas temperature value and is automatically controlled by the feed back control so that it is kept at the target value.

  • Page 62: Special Operation

    4-6 SPECIAL OPERATION 4-6-1 PRESSURE BALANCE CONTROL The pressure balance operation is performed to balance the pressure inside the refrigerant circuit during from cooling to Heating or Stopping, or from Heating to Cooling or Stopping. It keeps open SV1 and SV2 for 3 minutes. 4-6-2 OIL RECOVERY OPERATION 1) Purpose of the operation The amount of refrigerant lubricant oil which has been transported to the indoor units and the connection pipe with the...

  • Page 63: Crank Case Heater Operation

    4-6-4 CRANK CASE HEATER OPERATION The crank case heater keeps the compressor temperature at or higher than the ambient temperature while stopping, and it protect the compressor from starting up failure due to the refrigerant being stayed inside the compressor. Starting condition : When the detection temperature of the heat exchanger middle temperature thermistor becomes lower than 38°C after 3 minutes of turning on the power (Compressor has not started up after the power on).

  • Page 64: Protective Function

    4-7 PROTECTIVE FUNCTION 4-7-1 PROTECTIVE FUNCTION LIST Protective Function List Protective Function Detect Parts Condition of Protection Detective Function Start: 108°C more. Compressor speed is decreased by 10Hz/120 sec Discharge temp Discharge temp thermistor Release: 100°C less (120sec) until it becomes lower than 108°C. protection 1 Start: 103°C more.

  • Page 65: Indoor Unit Operation Control

    R410A SERIES 5 . INDOOR UNIT OPERATION CONTROL...

  • Page 66: Fan Control

    5. INDOOR UNIT OPERATION CONTROL 5-1 FAN CONTROL 5-1-1 FAN SPEED SETTING Fan speed setting Press the FAN CONTROL button to set the fan speed. AUTO HIGH 5-1-2 "AUTO" POSITION Fan speed zone 1) COOLING OPERATION 3°C Hi zone The fan speed is determined automatically in accordance 2°C with the condition "(T (corrected room temperature) - T...

  • Page 67: Master Control

    5-2 MASTER CONTROL 5-2-1 OPERATION MODE CONTROL Each operation mode is controlled as below. (1) Stop mode Indoor fan motor : OFF Electric expansion valve : Stop pulse Drain pump : Turns ON-OFF by the drain pump control function (2) Cool, Fan, Heat and Dry Mode Cool Heat Indoor fan motor...

  • Page 68: Cool" Position

    5-2-3 "COOL" POSITION When using the cooling mode, set the temperature to a value lower than the current room temperature, otherwise the indoor unit will not start the cooling operation and only the fan will rotate. An example for COOLING TEMPERATURE CONTROL time chart (Manual setting) Ts + 0.5 C •...

  • Page 69: Louver Control

    5-3 LOUVER CONTROL 5-3-1 ADJUSTING THE DIRECTION OF AIR CIRCULATION Instructions relating to heating ( ) are applicable only to heat pump type outdoor unit. Begin air conditioner operation before performing this procedure. Vertical Air Direction Adjustment This instructions are applicable to "CASSETTE TYPE", "WALL MOUNTED TYPE"...

  • Page 70: Swing Operation

    Use the air direction adjustments within the ranges shown above. The vertical airflow direction is set automatically as shown, in accordance with the type of operation selected. During Cooling mode : Horizontal flow During Heating mode : Downward flow During AUTO mode operation, for the first minute after beginning operation, airflow will be horizontal the air direction cannot be adjusted during this period.
  • Page 71 To Stop Vertical airflow SWING Operation Air swing range (Cassete type) Press the VERTICAL SWING button for more than two seconds once and again. Air flow direction set Range of swing The remote controller's VERTICAL SWING lamp **and indoor unit's SWING indicator lamp (VERTICAL SWING) will go out. Airflow direction will return to the setting before swing was begun.

  • Page 72: Electronic Expansion Valve Control

    5-4 ELECTRONIC EXPANSION VALVE CONTROL (1) Initialization When the power is turned ON. When the power is OFF after the certain period. (2) Operation Control When indoor unit stopping EEV Condition Outdoor unit Condition Fully closed Cooling Fully closed Heating Slightly open When starting up (Cooling)

  • Page 73: Function

    5-6 FUNCTION 5-6-1 AUTO RESTART When the power supply to the indoor unit shut down and comes back again, the indoor unit is operated at the previous condition before the shut down. It DIP-SW 2-4 of the indoor unit is OFF, auto restart does not function. 5-6-2 ICING PROTECTION CONTROL The icing of the indoor heat exchanger is prevented during the cooling and dry mode operation.

  • Page 74: Timer Control

    5-7 TIMER CONTROL 5-7-1 WIRELESS REMOTE CONTROLLER UTB - There are following 4 kinds of timer modes are available. ON Timer : OFF Timer : PROGRAM Timer : SLEEP Timer : Timer reset : 1. ON / OFF TIMER Instructions relating to heating are applicable to "HEAT PUMP MODELS". The timer functions cannot be used when this controller is used together with the remote controller (Wired type).
  • Page 75 Sleep timer The sleep timer function automatically corrects the temperature thermostat setting according to the time setting to prevent excessive cooling and heating while sieeping. Cooling operation / dry operation Heating operation When the sleep timer is set, the set temperature When the sleep timer is set, the set temperature automatically rises 1 C every hour.The set sutomatically drops 1...

  • Page 76: Wired Remote Controller

    5-7-2 WIRED REMOTE CONTROLLER UTB - ON / TIMER OFF / TIMER WEEKLY TIMER TEMPERATURE SET BACK TIMER 1. ON / OFF TIMER Instructions related to heating are applicable to "HEAT PUMP MODELS". The timer function may not be available because of initial setting. To set the ON / OFF timer Press the TIMER MODE button to MO TU WE TH FR SA...
  • Page 77 To start/cancel the WEEKLY timer operation To start To cancel SU MO TU WE TH FR SA DELETE CLOCK ADJUST 3 6 9 12 15 18 21 Press the DELETE button to cancel the timer mode. 3 6 9 12 15 18 21 When the weekly timer is selected, the The timer mode can also be timer starts automatically.

  • Page 78: Temperature Set Back Timer

    3. TEMPERATURE SET BACK TIMER Instructions related to heating are applicable to "HEAT PUMP MODELS". The timer function may not be available because of initial setting. To set the temperature SET BACK timer SET BACK SU MO TU WE TH FR SA If there is no existing SET BACK tempera- ture setting, "- -"...

  • Page 79: Group Remote Controller

    5-7-3 GROUP REMOTE CONTROLLER UTB - YDA WEEKLY TIMER 1. WEEKLY TIMER Instructions related to heating are applicable to "HEAT PUMP MODELS". The timer function is not available depending on the initial setting. Different schedules can be set for each day of the week. Four timers can be set for each day.
  • Page 80 Operating setting No display No setting No display No setting AUTO COOL HEAT If all of the selected indoor units are COOLING ONLY MODELS, there is a possibility that HEAT cannot be selected. If all of the selected indoor units are HEAT PUMP MODELS or if HEAT PUMP MOD- ELS are selected with COOLING ONLY MODELS, there is a possibility that AUTO or FAN cannot be selected.

  • Page 81: Trouble Shooting

    R410A SERIES 6 . TROUBLE SHOOTING...

  • Page 82: Indoor Unit

    6. TROUBLESHOOTING 6-1 INDOOR UNIT OPERATION LAMP (Red) TIMER LAMP (Green) 3rd LAMP (Orange) MANUAL AUTO bottom Operation can be checked by lighting and flashing of the LED (OPERATION, TIMER, 3rd) of the receiver unit display section. Perform judgment in accordance with the following. TEST RUN When the air conditioner is operating in test run mode, the OPERATION and TIMER lamps flash slowly at the same time.

  • Page 83: Abnormal Operation Display

    6-1-2 ABNORMAL OPERATION DISPLAY RECEIVER UNIT LED DISPLAY Please refer the flashing pattern as follows. OPERATION LED TIMER LED 3rd LED TROUBLE CONTENTS (RED) (GREEN) (ORANGE) SHOOTING Continuous flash Continuous flash Model information error Continuous flash Continuous flash Continuous flash Power supply frequency error Continuous flash 4 times flash...

  • Page 84: Outdoor Unit

    6-2 OUTDOOR UNIT 6-2-1 NORMAL OPERATION DISPLAY Display Type LED 1 LED 2 LED 3 LED 4 LED 5 LED 6 Not operating Cooling operation Heating operation Compressor frequency 20 to 30Hz Compressor frequency 31 to 40Hz Compressor frequency 41 to 50Hz Compressor frequency 51 to 60Hz Compressor frequency 61 to 70Hz Compressor frequency 71 to 80Hz...

  • Page 85: Abnormal Operation Display

    6-2-2 ABNORMAL OPERATION DISPLAY TROUBL Display type LED 1 LED 2 LED 3 LED 4 LED 5 LED 6 SHOOTING Discharge temperature error High-pressure error Low-pressure error Pump down error (High-pressure error) Pump down error (Discharge temperature error) (10) Pump down error (Other) (11) Discharge temperature thermistor error Heat exchanger liquid temperature thermistor error...

  • Page 86: Remote Controller

    6-3 REMOTE CONTROLLER Error code displayed on wired or simple remote controller Error Code Error contents 6-3-1 WIRED REMOTE CONTROLLER No error Model information abnormal When the error indication " " is displayed, inspection of the air conditioning system is Power supply frequency abnormal necessary.

  • Page 87: Simple Remote Controller

    6-3-2 SIMPLE REMOTE CONTROLLER Error code displayed on wired or simple remote controller Error Code Error contents No error When the error indication " " is displayed, inspection of the air conditioning system is Model information abnormal necessary. Please consult authoilzed servise personnel. Power supply frequency abnormal Run [Self-Diagnosis] if flashes on the clock display of the remote controller.

  • Page 88: Group Remote Controller

    6-3-3 GROUP REMOTE CONTROLLER When the error indication " " is displayed, inspection of the air conditioning system is necessary. Please consult authoilzed servise personnel. Run [Self-Diagnosis] if [E : ] flashes on the clock display of the remote controller. SELF-DIAGNOSIS (1) The air conditioning system must be inspected if "E : "...
  • Page 89 Error code displayed on group remote controller Error Group remote controller error Outdoor unit error Indoor unit error Code Convertor error No error No error No error Model information abnormal Model information abnormal Microcomputer communication error Microcomputer communication error Microcomputer communication error Power supply frequency abnormal Power supply frequency abnormal Parallel communication error...

  • Page 90: Network Converter

    6-4 NETWORK CONVERTER The red LED (D110) in Main PCB blinks for approx. 3 seconds during the initializing when the power is turned on or reset (initialized). When the initializing is successfully compeleted, LED (D110) lights up, and the greed LED (D111, D113, D114) also light up. Error code of Network Converter is indicated with 4 digits on 7 segment LED (D118, D119) in Main PCB.

  • Page 91: Trouble Shooting

    6-5 TROUBLE SHOOTING 6-5-1 TROUBLE SHOOTING WITH ERROR CODE (INDOOR UNIT) Indicate or Display: Indicate or Display: Trouble shooting 1 Indoor Unit : Operation LED Flash Flash, Timer LED Flash Flash INDOOR UNIT INDOOR UNIT Error Method: Error Method: 3rd LED Outdoor Unit : LED1 Flash,...
  • Page 92 Indicate or Display: Indicate or Display: Trouble shooting 2 Indoor Unit : Operation LED Flash Flash, Timer LED Flash Flash INDOOR UNIT INDOOR UNIT Error Method: Error Method: 3rd LED Flash Flash POWER SUPPLY FREQUENCY Outdoor Unit : LED1 Flash, LED6 1 8TIMES Blink (Indoor Unit address) ERROR...
  • Page 93 Indicate or Display: Indicate or Display: Trouble shooting 3 Indoor Unit : Operation LED Flash Flash, Timer LED Times Blink Times Blink INDOOR UNIT INDOOR UNIT Error Method: Error Method: 3rd LED Times Blink Times Blink INDOOR UNIT EEPROM ACCESS Outdoor Unit : LED1 Flash,...
  • Page 94 Indicate or Display: Indicate or Display: Trouble shooting 4 Indoor Unit : Operation LED 2 Times Blink 2 Times Blink, Timer LED Flash Flash INDOOR UNIT INDOOR UNIT Error Method: Error Method: 3rd LED ROOM TEMPERATURE THERMISTOR Outdoor Unit : LED1 Flash, LED6...
  • Page 95 Indicate or Display: Indicate or Display: Trouble shooting 5 Indoor Unit : Operation LED 3 Times Blink, Timer LED Flash Flash INDOOR UNIT INDOOR UNIT Error Method: Error Method: 3rd LED 1time Blink HEAT EXCHANGER (Inlet) Outdoor Unit : LED1 Flash, LED6 1 8TIMES Blink (Indoor Unit address)
  • Page 96 Indicate or Display: Indicate or Display: Trouble shooting 6 Indoor Unit : Operation LED 3 Times Blink, Timer LED Flash Flash INDOOR UNIT INDOOR UNIT Error Method: Error Method: 3rd LED 2time Blink HEAT EXCHANGER (Middle) Outdoor Unit : LED1 Flash, LED6 1 8TIMES Blink (Indoor Unit address)
  • Page 97 Indicate or Display: Indicate or Display: Trouble shooting 7 Indoor Unit : Operation LED4 Times Blink 4 Times Blink, Timer LED Flash Flash INDOOR UNIT INDOOR UNIT Error Method: Error Method: 3rd LED Outdoor Unit : LED1 Flash, LED6 1 8TIMES Blink (Indoor Unit address) DRAIN ERROR ERROR CODE : E:11...
  • Page 98 Indicate or Display: Indicate or Display: Trouble shooting 8 Indoor Unit : Operation LED 5 Times Blink 5 Times Blink, Timer LED Flash Flash INDOOR UNIT INDOOR UNIT Error Method: Error Method: 3rd LED 1Time Blink 1Time Blink STANDARD WIRED REMOTE CONTROLLER Outdoor Unit : LED1 Flash,...
  • Page 99 Indicate or Display: Indicate or Display: Trouble shooting 10 Indoor Unit : Operation LED 6 Times Blink 6 Times Blink, Timer LED Flash Flash INDOOR UNIT INDOOR UNIT Error Method: Error Method: 3rd LED Outdoor Unit : LED1 Flash, LED6 1 8TIMES Blink (Indoor Unit address) INDOOR FAN ERROR ERROR CODE :...
  • Page 100 Indicate or Display: Indicate or Display: Trouble shooting 11 Indoor Unit : Operation LED Flash Flash, Timer LED Times Blink Times Blink INDOOR UNIT INDOOR UNIT Error Method: Error Method: 3rd LED Times Blink Times Blink Outdoor Unit : LED1 Flash, LED6 1 8TIMES Blink (Indoor Unit address)

  • Page 101: Trouble Shooting With Error Code (Outdoor Unit)

    6-5-2 TROUBLE SHOOTING WITH ERROR CODE (OUTDOOR UNIT) Indicate or Display: Indicate or Display: Trouble shooting 12 Indoor Unit : Operation LED Flash Flash, Timer LED 3 Times Blink 3 Times Blink OUTDOOR UNIT OUTDOOR UNIT Error Method: Error Method: 3rd LED 3 Times Blink 3 Times Blink...
  • Page 102 Indicate or Display: Indicate or Display: Trouble shooting 13 Indoor Unit : Operation LED Flash Flash, Timer LED 3 Times Blink 3 Times Blink OUTDOOR UNIT OUTDOOR UNIT Error Method: Error Method: 3rd LED 3 Times Blink 3 Times Blink 4 Times Outdoor Unit : LED1...
  • Page 103 Indicate or Display: Indicate or Display: Trouble shooting 14 Indoor Unit : Operation LED Flash Flash, Timer LED 3 Times Blink 3 Times Blink OUTDOOR UNIT OUTDOOR UNIT Error Method: Error Method: 3rd LED 3 Times Blink 3 Times Blink Outdoor Unit : LED1 Flash...
  • Page 104 Indicate or Display: Indicate or Display: Trouble shooting 15 Indoor Unit : Operation LED Flash Flash, Timer LED 3 Times Blink 3 Times Blink OUTDOOR UNIT OUTDOOR UNIT Error Method: Error Method: 3rd LED 3 Times Blink 3 Times Blink PUMP DOWN ERROR Outdoor Unit : LED1...
  • Page 105 Indicate or Display: Indicate or Display: Trouble shooting 16 Indoor Unit : Operation LED Flash Flash, Timer LED 3 Times Blink 3 Times Blink OUTDOOR UNIT OUTDOOR UNIT Error Method: Error Method: 3rd LED 3 Times Blink 3 Times Blink PUMP DOWN ERROR Outdoor Unit : LED1...
  • Page 106 Indicate or Display: Indicate or Display: Trouble shooting 17 Indoor Unit : Operation LED Flash Flash, Timer LED 3 Times Blink 3 Times Blink OUTDOOR UNIT OUTDOOR UNIT Error Method: Error Method: 3rd LED 3 Times Blink 3 Times Blink PUMP DOWN ERROR Outdoor Unit : LED1...
  • Page 107 Indicate or Display: Indicate or Display: Trouble shooting 18 Indoor Unit : Operation LED Flash Flash, Timer LED 3 Times Blink 3 Times Blink OUTDOOR UNIT OUTDOOR UNIT Error Method: Error Method: 3rd LED 3 Times Blink 3 Times Blink DISCHARGE TEMPERATURE Outdoor Unit : LED1...
  • Page 108 Indicate or Display: Indicate or Display: Trouble shooting 19 Indoor Unit : Operation LED Flash Flash, Timer LED 3 Times Blink 3 Times Blink OUTDOOR UNIT OUTDOOR UNIT Error Method: Error Method: 3rd LED 3 Times Blink 3 Times Blink HEAT EXCHANGER TEMPERATURE Outdoor Unit : LED1...
  • Page 109 Indicate or Display: Indicate or Display: Trouble shooting 20 Indoor Unit : Operation LED Flash Flash, Timer LED 3 Times Blink 3 Times Blink OUTDOOR UNIT OUTDOOR UNIT Error Method: Error Method: 3rd LED 3 Times Blink 3 Times Blink HEAT EXCHANGER TEMPERATURE Outdoor Unit : LED1...
  • Page 110 Indicate or Display: Indicate or Display: Trouble shooting 21 Indoor Unit : Operation LED Flash Flash, Timer LED 3 Times Blink 3 Times Blink OUTDOOR UNIT OUTDOOR UNIT Error Method: Error Method: 3rd LED 3 Times Blink 3 Times Blink SUNCTION TEMPERATURE Outdoor Unit : LED1...
  • Page 111 Indicate or Display: Indicate or Display: Trouble shooting 22 Indoor Unit : Operation LED Flash Flash, Timer LED 3 Times Blink 3 Times Blink OUTDOOR UNIT OUTDOOR UNIT Error Method: Error Method: 3rd LED 3 Times Blink 3 Times Blink OUTDOOR TEMPERATURE Outdoor Unit : LED1...
  • Page 112 Indicate or Display: Indicate or Display: Trouble shooting 23 Indoor Unit : Operation LED Flash Flash, Timer LED 3 Times Blink 3 Times Blink OUTDOOR UNIT OUTDOOR UNIT Error Method: Error Method: 3rd LED 3 Times Blink 3 Times Blink Outdoor Unit : LED1 Flash...
  • Page 113 Indicate or Display: Indicate or Display: Trouble shooting 25 Indoor Unit : Operation LED Flash Flash, Timer LED 3 Times Blink 3 Times Blink OUTDOOR UNIT OUTDOOR UNIT Error Method: Error Method: 3rd LED 3 Times Blink 3 Times Blink COMPRESSOR ROTOR LOCATION Outdoor Unit : LED1...
  • Page 114 Indicate or Display: Indicate or Display: Trouble shooting 26 Indoor Unit : Operation LED Flash Flash, Timer LED 3 Times Blink 3 Times Blink OUTDOOR UNIT OUTDOOR UNIT Error Method: Error Method: 3rd LED 3 Times Blink 3 Times Blink Outdoor Unit : LED1 Flash...
  • Page 115 Indicate or Display: Indicate or Display: Trouble shooting 27 Indoor Unit : Operation LED Flash Flash, Timer LED 3 Times Blink 3 Times Blink OUTDOOR UNIT OUTDOOR UNIT Error Method: Error Method: 3rd LED 3 Times Blink 3 Times Blink Outdoor Unit : LED1 Flash...
  • Page 116 Indicate or Display: Indicate or Display: Trouble shooting 28 Indoor Unit : Operation LED Flash Flash, Timer LED 3 Times Blink 3 Times Blink OUTDOOR UNIT OUTDOOR UNIT Error Method: Error Method: 3rd LED 3 Times Blink 3 Times Blink Outdoor Unit : LED1 Flash...
  • Page 117 Indicate or Display: Indicate or Display: Trouble shooting 29 Indoor Unit : Operation LED Flash Flash, Timer LED 3 Times Blink 3 Times Blink OUTDOOR UNIT OUTDOOR UNIT Error Method: Error Method: 3rd LED 3 Times Blink 3 Times Blink POWER SOUCE FREQUENCY Outdoor Unit : LED1...
  • Page 118 Indicate or Display: Indicate or Display: Trouble shooting 30 Indoor Unit : Operation LED Flash Flash, Timer LED 3 Times Blink 3 Times Blink OUTDOOR UNIT OUTDOOR UNIT Error Method: Error Method: 3rd LED 3 Times Blink 3 Times Blink Outdoor Unit : LED1 Flash...
  • Page 119 Indicate or Display: Indicate or Display: Trouble shooting 31 Indoor Unit : Operation LED Flash Flash, Timer LED 3 Times Blink 3 Times Blink OUTDOOR UNIT OUTDOOR UNIT Error Method: Error Method: 3rd LED 3 Times Blink 3 Times Blink Microcomputers MICROCOMPUTERS COMMUNICA- Outdoor Unit :...
  • Page 120 Indicate or Display: Indicate or Display: Trouble shooting 32 Indoor Unit : Operation LED Flash Flash, Timer LED 3 Times Blink 3 Times Blink OUTDOOR UNIT OUTDOOR UNIT Error Method: Error Method: 3rd LED 3 Times Blink 3 Times Blink NET WORK COMMUNICATION Outdoor Unit : LED1...
  • Page 121 Check Point : Check the wiring of connector / terminal Filter PCB Filter PCB Filter PCB Main Filter Communi- Communi- Communi- cation PCB cation PCB cation PCB Communication Controller PCB Controller PCB Controller PCB OUTDOOR UNIT INDOOR UNIT INDOOR UNIT INDOOR UNIT 1.Check the wiring of Out door Unit Power PCB CN201 (Communication connector) 2.Check the wiring of Outdoor Unit Power PCB TM 203 (RED), and check FUSE (F202)

  • Page 122: Trouble Shooting For Optional Parts

    6-5-3 TROUBLE SHOOTING FOR OPTIONAL PARTS External Switch Controller (UTR-YESA) Error Contents : Symptom : No operation & LED does not light up. Power Supply Error Condition : 1. No power supply. Voltage error between red and black terminals of External Switch Controller. (Normal voltage: 12V plus minus 10%) 2.
  • Page 123 Error Contents : Symptom : LED repeats flashing 0.5sec ON & 1.0sec OFF. Transmission Error Condition : Normal communication with Indoor unit has been suspended for longer than 1 minute. Cause 1 : DIP switch setting defective Cause 3 : Ext. Switch Controller is defective. p Check setting of DIP-SW1-4, 1-5, 1-6.
  • Page 124 Group Remote Controller (UTB-YDB) Symptom : Error Contents : Error Code display [ 1F ] Communication Error OPERATION LED is flashing. Details : Condition of occurrence : When the signal is cut off for more than 90 seconds from the registered Indoor unit (including Slave unit) and Outdoor unit. Release condition : 1.
  • Page 125 Symptom : Error Contents : Error Code display [ 1C ] Connection Error OPERATION LED is flashing. Details : Condition of occurrence : The valid signal has not been received from the converter more than 90 seconds after the communication line became valid. Release condition : Valid signal is received from Converter.
  • Page 126 Symptom : Error Contents : Error Code display [ 1d ] System Error OPERATION LED is flashing. Details : Condition of occurrence : 1. Only the slave unit is registered. (Main unit is not registered.) 2. Indoor unit which is not existing was registered. Release condition : Registered contents have been changed by SELECT key, DAY key, Timer Mode key (DELETE key).
  • Page 127 Network converter (UTR-YGCA) Error indication of 7 segment may occur at the same time in each PCB. If errors have occurred in multiple number of PCBs at the same time, each PCB's error is indicated in interval of every 3 seconds. CONDITION INDICATION CAUSE...
  • Page 128 CONDITION INDICATION CAUSE MEASURE "8C" is continuously indi- 7 seg : OFF 1) Connection error of re- 1) Check connection of Remote Controller Cable. mote controller cable 2) Check if Remote Contoller Cable is incorrectly connected to the remote con- cated on the indicator of 2) RC PCB failure or Re- troller terminal of Converter.

  • Page 129: Trouble Shooting With No Error Code

    6-5-4 TROUBLE SHOOTING WITH NO ERROR CODE Forecast of Cause Forecast of Cause: 1. INDOOR UNIT NO POWER 1.Relation of installation construction 2. Relation of Indoor unit Filter PCB 1)Use of specified material 1)Wiring of connection cable 2)Check the power supply 2)Check power supply 3)Check Fuse of Indoor unit filter PCB 4)Check varistor of Indoor unit filter PCB...
  • Page 130 Forecast of Cause Forecast of Cause: 2. OUTDOOR UNIT NO POWER 1. Relation of installation construction 3. Check the parts around Filter PCB 1) Use of specified material 1) Check Power Relay 2) Check the power supply 2) Check Diode Bridge 3) Check Active Filter Module 2.
  • Page 131 3. INDOOR UNIT DOES NOT Forecast of Cause Forecast of Cause: 1.Check Remote controller / Address 4.Check EEV-KIT OPERATE 1)Check Wireless Remote controller 5.Relation of outdoor unit 2)Check Wired / Simple remote controller 1)Check EEV1 2.Check operating Condition 3. Relation of Indoor unit 1)Check Fan motor 2)Check each thermistor Check Point 1-1 : Incase of Wireless Remote Controller...
  • Page 132 Preliminary Check Preliminary Check : 4. NOT COOLING OR 1.Check Environmental cause 3.Check Indoor unit (Indoor unit Test operation) NOT HEATING 1)Check the Air Flow route 1)Check Indoor unit Fan / Fan motor 2)Check the relationship between 2)Check each Thermistor Capacity and Installation location 3)Check address setting 2.Check Outdoor unit...
  • Page 133 Estimated details Estimated details : 5. WATER LEAKAGE 1.Piping 1.Piping 2. Check Unit 2. Check Unit 1)Installation of insulation material 1)Installation of insulation material 1)Check inclination of the unit installation. 1)Check inclination of the unit installation. at each piping connection. at each piping connection.
  • Page 134 Estimated details Estimated details : 6. ABNORMAL SOUND IS 1.EV 1.EV – – KIT (Open excessively) KIT (Open excessively) 4. Normal Function 4. Normal Function HEARD FROM INDOOR UNIT 2.Installed piping 2.Installed piping 1) Refrigerant flow sound 1) Refrigerant flow sound 3.Indoor unit 3.Indoor unit 2) Defrost operation...

  • Page 135: Cases Such As These Are Normal

    6-6 CASES SUCH AS THESE ARE NORMAL Operation not trouble From the standpoint of control, the following operations are incorporated for air conditioner operation and protection. They do not indicate trouble. REMOTE OPERATION DESCRIPTION INDOOR UNIT INDICATION Indicates that the power came on normally when The red and green lamps flash power was applied (at power failure recovery).

  • Page 136: Service Parts Information

    6-7 SERVICE PARTS INFORMATION SERVICE PARTS INFORMATION 1 SERVICE PARTS INFORMATION 1 9705256026 (Filter PCB) P/No. Current transformer Check Point 1: Check connector of CT Check Point 2: Resistance value of CT Check the connection of connector CN202,CN11 Check the terminal resistance of CT Current transformer Filter PCB Filter PCB...
  • Page 137 SERVICE SERVICE PARTS PARTS INFORMATION 2 INFORMATION 2 9900262013 (Power Relay) P/No. Main Relay Check Point 1: Check the circuit connection and Coil in relay Check the connection of each terminal Resistance Value : 120 (About) PWB ASSY If it is 0 (OPEN),replace Diode block. CN12 Check Point 2: Check relay operation during normal operation 1.
  • Page 138 SERVICE PARTS INFORMATION 4 9707278019 (Active Filter Module) P/No. 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(+)
  • Page 139 SERVICE SERVICE PARTS PARTS INFORMATION 5 INFORMATION 5 9705253032 (TR ASSY) P/No. TR ASSY Check Point 1: Check Circuit connection Check the connection to each terminal. TR PCB ASSY CN301 (IPM DRIVE) W301 (3)ORANGE Lo DC15V W302 (2)RED GND (1)BROWN DC+5.0V W303 DC5V CN302 (IPM POWER)
  • Page 140 SERVICE SERVICE PARTS PARTS INFORMATION 6 INFORMATION 6 9372716014 (Compressor ASSY) P/No. Compressor ASSY Check Point 1: Check Circuit connection Check the connection to each terminal. TR PCB ASSY Terminal cover opened Terminal cover opened (RED) (RED) W301 W302 W303 (WHITE) (WHITE) (BLACK)
  • Page 141 SERVICE SERVICE PARTS INFORMATION 7 PARTS INFORMATION 7 9601705017 (Motor induct ) P/No. FAN Motor Outdoor unit Check Point 1: Check Circuit connection Check wiring of connectors between Control PCB CN2 - Joint Connector - Fan motor Check FAN capacitor connect (Yellow / Black) DC12V Control signal Check Point 2: Check Open / Short of circuit...
  • Page 142 9900186012 (Hi pressure SW) P/No. SERVICE SERVICE PARTS PARTS INFORMATION 8 INFORMATION 8 Pressure SW 9900187019 (Lo pressure SW) P/No. Check Point 1: Check Circuit connection Check the connects CN19, CN20, and each terminal connection at SW side (inside the insulation material) Remove the connector and check continuity between terminals.
  • Page 143 9900188023 (VALVE) P/No. SERVICE SERVICE PARTS INFORMATION 9 PARTS INFORMATION 9 9900189174 (Solenoid COIL 1) P/No. 9900189181 (Solenoid COIL 2) P/No. Check Point 1: Check Circuit connection Check Connectors CN4,CN5. Also check if cable is broken. DC12V Control signal Control signal Check Point 2: Check Solenoid coil Check Point 3: Check voltage of Solenoid coil During normal operation, the voltage between 1- 2 of...
  • Page 144 9900170028 (VALVE) SEVICE SEVICE PARTS PARTS INFORMATION 10 INFORMATION 10 P/No. EEV1 Outdoor unit 9900190026 (Electric COIL) P/No. Check Point 1: Check Circuit connection Check Point 2: Check Solenoid coil Check wiring of connector CN17. Remove CN17 and check the resistance value of coil in the motor.
  • Page 145 PARTS PARTS INFORMATION 11 INFORMATION 11 Option Parts. UTR-EV2A, UTR-EV3 Check Point 1: Check Circuit connection Check Point 2: Check Solenoid Coil Remove CN14 and check the resistance value of coil in Check the connection of connector CN14 the motor Read Wire Resistance Value DC12V...
  • Page 146 9970035012 (4WAY VALVE) P/No. SEVICE SEVICE PARTS PARTS INFORMATION 12 INFORMATION 12 4WAY VALVE 9900191016 (Solenoid COIL) P/No. Check Point 1: Check Circuit connection Check Point 2: Check Solenoid Coil Remove CN6 from PCB and check the resistance value Check the connection of connector CN 6 of coil Resistance Value 1.6K...
  • Page 147 SEVICE SEVICE PARTS INFORMATION 13 PARTS INFORMATION 13 Duct Type Indoor FAN Motor Check Point Check Point AR 7 , 9 AR 7 , 9 P/No. 9601722014 P/No. 9601722014 Check each winding resistance of Motor Read Wire Resistance value(20 Low(Blue) White - Red 764.3 8% Med(Violet)
  • Page 148 SEVICE SEVICE PARTS PARTS INFORMATION 14 INFORMATION 14 Cassette Type Indoor unit FAN Motor Check Point Check Point AU 7 , 9 AU 7 , 9 P/No. 9601040040 P/No. 9601040040 Check each winding resistance of Motor Read Wire Resistance value(20 Low(Blue) Med(Violet) White - Red...
  • Page 149 SEVICE SEVICE PARTS PARTS INFORMATION 15 INFORMATION 15 Wall Mounted type Indoor unit FAN Motor Check Point Check Point AS 7 9601172017 9601172017 Check each winding resistance of Motor Read wire Resistance value (20 ) Black - Yellow 138 8% (Yellow) White - Yellow 136 8%...

  • Page 150: Installation

    R410A SERIES 7 . INSTALLATION...

  • Page 151: Additional Charge

    7. INSTALLATION 7-1 ADDITIONAL CHARGE (1) Pipe length When adding refrigerant, follow the formula below. Add the refrigerant according to the result. 3/8 (9.52) 1/4 (6.35) Liquid pipe [in(mm)] Additional refrigerant 0.06 0.02 (kg/m) The amount of additional charge C(kg) Total length Total length of 3/8"...

  • Page 152: Examples Of System Setting

    7-2 EXAMPLES OF SYSTEM SETTING (1) Refrigerant system Outdoor unit EV kit Indoor Indoor Indoor Indoor Indoor Indoor Indoor Indoor unit unit unit unit unit unit unit unit System configuration Total capacity Example 1 ARU7 ARU7 ARU7 ARU7 ARU7 ARU7 ARU7 ARU7 2.15...
  • Page 153 Pipe length Maximum allowable length (actual pipe length) Refrigerant system 1 a + b + h 25.2m a + b + i 30.0m a + b + j 30.0m a + b + k 25.1m Between outdoor unit and the farthest indoor unit a + c + d 30.3m a + c + e...
  • Page 154 Outdoor unit EV kit Indoor Indoor Indoor Indoor unit unit unit unit System configuration Total capacity Example 1 ARU12 ARU12 ARU18 ARU18 17.6 Capacity BTU/h 14,000 14,000 19,100 19,100 66200 Example 2 ARU18 ARU18 ARU25 ARU25 7.05 7.05 24.7 Capacity BTU/h 19,100 19,100 24,100 24,100 86400 Total capacity of indoor unit (1 refrigerant system)

  • Page 155: Additional Refrigerant

    Maximum allowable length (actual pipe length) Refrigerant system 2 a + b 35.3m a + c 30.1m Between outdoor unit and the farthest indoor unit a + d 30.1m a + e 35.3m Total pipe length 115m a + b + c + d + e 70.5m Between outdoor unit and the 1st branch kit 20.1m...

  • Page 156: System Configuration

    Outdoor unit EV kit Indoor Indoor Indoor Indoor Indoor Indoor unit unit unit unit unit unit System configuration Total capacity Example 1 ARU12 ARU18 ARU9 ARU9 ARU9 ARU9 20.0 Capacity BTU/h 11,900 18,100 9,600 9,600 9,600 9,600 68,400 Example 2 ARU18 ARU18 ARU14 ARU14 ARU14 ARU14 26.6 Capacity...
  • Page 157 Pipe length Maximum allowable length (actual pipe length) Refrigerant system 3 a + b + f 40.1m a + b + g 35.2m a + b + h 35.2m Between outdoor unit and the farthest indoor unit a + b + I 40.1m a + c + d 22.1m...

  • Page 158: Precautions For Installation

    7-3 PRECAUTIONS FOR INSTALLATION 1. Preparing pipes Diameter and thickness of copper pipes is shown below. (1) Use the designated size ( diameter & thickness ) of refrigerant pipes. Nominal Outer diameter Thickness (2) Those pipes purchased locally may contain dust diameter (inch) (mm) (mm)
  • Page 159 4. Tightness test (1) After completing all piping connection, always carry out an air tight test to check and confirm that there is no gas leakage. Charge the piping with nitrogen to within the sealing test pressure (600psi , 4.15 MPa). After 24 hours, check that the pressure has not fallen.

  • Page 160: Pump Down Method

    7-4 PUMP DOWN METHOD 7-4-1 PROCEDURE OF THE PUMP DOWN Refer to the following pump down procedure. (1) Stop the indoor and outdoor units. (2) Close the liquid pipe valve using Hexagon wrench. (3) Select Dip SW 1-3 in the outdoor unit PC board from OFF to ON, so that the pump down operation starts automatically in 40 seconds.

  • Page 161: Refrigerant Caution -R410A

    R410A SERIES 8 . REFRIGERANT CAUTION -R410A-...

  • Page 162: R410A Tools

    8. REFRIGERANT CAUTION -R410A- 8-1 R410A TOOLS This air conditioner used R410A. TOOLS AND EQUIPMENT (R410A) For installation and servicing, it is necessary to prepare the Pressure control and tools and machines that are different from the previous Gas charging Circuit switching refrigerant.

  • Page 163: Precaution For Installation

    8-2 PRECAUTION FOR INSTALLATION Precaution for installation Pipe diameter, recommended material and wall thickness Nominal diameter (in.) Outside diameter 6.35 9.52 12.70 15.88 19.05 (mm) Material ASTM B280; JIS H3300 C1220T-O or equivalent Wall thickness in. (mm) 1) : Allowable tensile stress (33 N/mm at 125°C).
  • Page 164 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 165: Precautions For Servicing

    8-3 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 166: New Refrigerant R410A

    8-4 NEW REFRIGERANT R410A 8-4-1 WHAT IS HFC? Phase-out schedule of HCFC according to Montreal protocol 100% = (HCFC consumption of 1989) + (CFC consumption of 1989) x 2.8% total abolition only service use started control 0.5% 1996 2000 2004 2010 2015 2020...
  • Page 167 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 168: Designed Pressure Of R410A Refrigerant

    Summary of R407C and R410A characteristics R410A R407C Similar pressure as R22 Higher system 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) 8-4-2 DESIGNED PRESSURE OF R410A REFRIGERANT Relation between R410A condensing temperature and saturated pressure.

  • Page 169: Heat Exchanger

    8-5 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 170: Appending Data

    R410A SERIES 9 . APPENDING DATA...

  • Page 171: Refrigerant Pipe System Diagram

    9. APPENDING 9-1 REFRIGERANT PIPE SYSTEM DIAGRAM MODEL : AO54UJ 09-01...
  • Page 172 MODEL : AO54FJ 09-02...

  • Page 173: Characteristics Of Sensors

    9-2 CHARACTERISTICS OF SENSORS 9-2-1 THERMISTOR Thermistor resistance values <Indoor unit side> 1) Room temperature thermistor (TH Room tempera- 12.5 17.5 22.5 27.5 ture ( C) Resistance value 33.6 29.5 25.9 22.8 20.2 17.9 15.8 14.1 12.5 11.2 10.0 (k ) Room tempera- 32.5 37.5...
  • Page 174 Thermistor resistance values <Outdoor unit side> 1) Outdoor heat exchanger outlet and middle thermistor (TH ) and suction temperature thermistor(TH Pipe tempera- -7.5 -5.0 -2.5 ture ( C) Resistance value 384.8 182.8 92.3 49.2 27.5 24.0 20.9 18.3 16.1 14.1 12.4 11.0 (k )

  • Page 175: Pressure Sensor

    9-2-2 PRESSURE SENSOR (1) Pressure Switch 1 High Pressure Side Pressure Circuit OFF(Open) 4.2 0.1 Mpa Circuit ON (Short) 3.2 0.15 Mpa When the high pressure inside the system rises excessively the circuit is cut off and the abnormal protection functions. ( Normally the circuit is shorted ) (2) Pressure Switch 2 Low Pressure Side...

  • Page 176: Wiring Diagram

    9-3 WIRING DIAGRAM 9-3-1 INDOOR UNIT COMPACT DUCT TYPE 09-06...
  • Page 177 LOW STATIC PRESSURE DUCT TYPE 09-07...
  • Page 178 09-08...
  • Page 179 09-09...
  • Page 180 09-10...
  • Page 181 09-11...
  • Page 182 09-12...
  • Page 183 09-13...

  • Page 184: Outdoor Unit

    9-3-2 OUTDOOR UNIT MODEL : AO54U 09-14...
  • Page 185 MODEL : AO54F 09-15...

  • Page 186: Model Designation

    9-4 MODEL DESIGNATION 9-4-1 OUTDOOR UNIT The number of TYPE CAPACITY MODEL NAME connectable indoor unit 15.2 kW AO 54UJBMR 1 to 8 Heat pump type AO 54FJBMR 15.2 kW 1 to 8 Cooling only type TYPE MARKET REGION MODEL CODE FUNCTION TYPE COMPRESSOR MODEL CHANGE...

  • Page 187: Indoor Unit

    9-4-2 INDOOR UNIT 8 types, 28models ranging from 2.15kW to 14.1kW. Type Cassette Duct Wall Cassette Duct Wall Capacity mounted (compact) (compact) mounted (compact) (kW) Model code 14.1 12.7 10.5 8.80 7.05 6.90 6.00 5.70 5.30 4.00 3.60 2.80 2.15 Type Refrigerant type Model...

  • Page 188: Disassembly Illustration & Parts List

    R410A SERIES 10 . DISASSEMBLY ILLUSTRATION & PARTS LIST...

  • Page 189: Outdoor Unit

    10. DISASSEMBLY ILLUSTRATION & PARTS LIST 10-1 OUTDOOR UNIT MODEL : AO*54UJBMR AO*54FJBMR 10-01...
  • Page 190 MODEL : AOY54UJBMR 10-02...
  • Page 191 MODEL : AOY54FJBMR 10-03...
  • Page 192 MODEL : AO*54UJBMR AO*54FJBMR 10-04...

  • Page 193: Parts List

    PARTS LIST Parts No. Parts No. Ref No. Description AO*54UJBMR Q'ty Ref No. Description AO*54UJBMR Q'ty 1 DRAIN CAP 313166024302 51 COMP PLATE 9372275016 2 AUXILIARY PIPE ASSY 9374162017 52 3-WAY VALVE ASSY 9372205082 3 DRAIN ASSY 9303029015 53 BOLT 0700145148 4 ACCESSORY SUB ASSY 9372773024...
  • Page 194 PARTS LIST Parts No. Parts No. Ref No. Description AO*54FJBMR Q'ty Ref No. Description AO*54FJBMR Q'ty 2 AUXILIARY PIPE ASSY 9374162017 51 COMP COVER C 9372736012 4 ACCESSORY SUB ASSY 9373583011 52 COMP COVER B 9372735015 5 CAB L SA 9372769027 53 COMP COVER D 9372737019...

  • Page 195: Indoor Unit

    10-2 INDOOR UNIT Models : AU 7UFAAR AU 9UFAAR AU 12UFAAR AU 14UFAAR AU 18UFAAR 235-1 464-1 10-07...
  • Page 196 Models : AU 7UFAAR AU 9UFAAR AU 12UFAAR AU 14UFAAR AU 18UFAAR 815-2 815-1 234-2 982-1 10-08...
  • Page 197 Models : UYG-UDYD-W 876-2 711-2 711-1 10-09...
  • Page 198 Models : AU 7UFAAR P A R T S L I S T AU 9UFAAR When you order parts, please make a photocopy of this page and fill the number of the parts in the "Order" column. INDOOR UNIT Parts No. Parts No.
  • Page 199 Models : AU 12UFAAR P A R T S L I S T AU 14UFAAR AU 18UFAAR When you order parts, please make a photocopy of this page and fill the number of the parts in the "Order" column. INDOOR UNIT Parts No.
  • Page 200 Models : UTG-UDYD-W GRILL FOR CEILING RECESSED TYPE ROOM AIR CONDITIONER Parts No. Parts No. Description Description UTG-UDYD-W Q'ty UTG-UDYD-W Q'ty FILTER 9359632009 PANEL 9359619017 165 MOTOR COVER 9359623014 LOUVER 9359624011 226 MOTOR GEAR 9359629009 INTAKE GRILLE 9370126006 385 INDICATOR PCB ASSY 9702224011 711-1 FILTER HOLDER-A 9359634003...
  • Page 201 Model : AU 20UFARR AU 25UFARR AU 30UFARR 184-1 999-1 184-1 235-1 10-13...
  • Page 202 Model : AU 20UFARR AU 25UFARR AU 30UFARR 481-1 10-14...
  • Page 203 Model : AU 20UFARR AU 25UFARR AU 30UFARR 10-15...
  • Page 204 Models : AU 20UFARR AU 25UFARR AU 30UFARR P A R T S L I S T When you order parts, please make a photocopy of this page and fill the number of the parts in the "Order" column. INDOOR UNIT Ref No.
  • Page 205 Model : AU 36UFASR AU 45UFASR AU 54UFASR 184-1 235-1 *235 337-1 146-1 146-2 61-1 61-1 10-17...
  • Page 206 Model : AU 36UFASR AU 45UFASR AU 54UFASR 481-1 10-18...
  • Page 207 Model : AU 36UFASR AU 45UFASR AU 54UFASR 10-19...
  • Page 208 Model : AU 36UFASR AU 45UFASR AU 54UFASR PARTS LIST Description Parts No. Description Parts No. Q'ty No. Q'ty FAN CAPACITOR 9900230029 *482 PUMP UNIT 9703125010 DECORATION PLATE 9365652008 HOOK 9362736008 61-1 WIND GUIDE BOARD 9373444015 GRILLE HINGE WIRE 9362754002 RUBBER(VIBRATION PROOF) 9362783002 *488 RUBBER CAP...
  • Page 209 Models : AR 7UFABR AR 9UFABR 235-1 588-1 588-2 RECEIVER UNIT RECEIVER UNIT ASSY 9372954010 RECEIVER UNIT SA 9372950012 HOLDER(PCB) 9372449011 9705798021 INDICATOR PCB ASSY BRACKET(HOLDER) 9373078012 HOOK METAL B 9373080015 HLD CVR 9373079019 FACE PNL(FRT) 9373278016 10-21...
  • Page 210 Models : AR 7UFABR AR 9UFABR 10-22...
  • Page 211 Models : AR 12UFADR AR 14UFADR AR 18UFADR AR 22UFADR 234-9 For AR14 235-1 588-1 588-2 980-1 RECEIVER UNIT RECEIVER UNIT ASSY 9372954010 RECEIVER UNIT SA 9372950012 HOLDER(PCB) 9372449011 INDICATOR PCB ASSY 9705798021 BRACKET(HOLDER) 9373078012 HOOK METAL B 9373080015 HLD CVR 9373079019 9373278016 FACE PNL(FRT)
  • Page 212 Models : AR 12UFADR AR 14UFADR AR 18UFADR AR 22UFADR 10-24...
  • Page 213 Models : AR 7UFABR AR 9UFABR AR 12UFADR AR 14UFADR AR 18UFADR AR 22UFADR 185-1 982-2 982-2 982-1 982-1 10-25...
  • Page 214 Models : AR 7UFABR P A R T S L I S T AR 9UFABR When you order parts, please make a photocopy of this page and fill the number of the parts in the "Order" column. INDOOR UNIT Parts No. Parts No.
  • Page 215 Models : AR 12UFADR P A R T S L I S T AR 14UFADR When you order parts, please make a photocopy of this page and fill the number of the parts in the "Order" column. INDOOR UNIT Parts No. Parts No.
  • Page 216 Models : AR 18UFADR P A R T S L I S T AR 22UFADR When you order parts, please make a photocopy of this page and fill the number of the parts in the "Order" column. INDOOR UNIT Parts No. Parts No.
  • Page 217 Model : AR 25UFAAR AR 30UFAAR RECEIVER UNIT RECEIVER UNIT ASSY 9372954010 RECEIVER UNIT SA 9372950012 HOLDER(PCB) 9372449011 INDICATOR PCB ASSY 9705798021 BRACKET(HOLDER) 9373078012 HOOK METAL B 9373080015 HLD CVR 9373079019 FACE PNL(FRT) 9373278016 10-29...
  • Page 218 Model : AR 25UFAAR AR 30UFAAR 10-30...
  • Page 219 Model : AR 25UFAAR AR 30UFAAR 10-31...
  • Page 220 Models : AR 25UFAAR AR 30UFAAR P A R T S L I S T When you order parts, please make a photocopy of this page INDOOR UNIT and fill the number of the parts in the "Order" column. Parts No. Parts No.
  • Page 221 Model : AR 36UFAAR AR 45UFAAR RECEIVER UNIT RECEIVER UNIT ASSY 9372954010 RECEIVER UNIT SA 9372950012 HOLDER(PCB) 9372449011 INDICATOR PCB ASSY 9705798021 BRACKET(HOLDER) 9373078012 HOOK METAL B 9373080015 HLD CVR 9373079019 FACE PNL(FRT) 9373278016 10-33...
  • Page 222 Model : AR 36UFAAR AR 45UFAAR 409/51 10-34...
  • Page 223 Model : AR 36UFAAR AR 45UFAAR 236-1 10-35...
  • Page 224 Model : AR 36UFAAR AR 45UFAAR PARTS LIST Parts No. Parts No. Description Description Q'ty No. Q'ty AR 36UFAAR AR 45UFAAR AR 36UFAAR AR 45UFAAR EVAPORATOR ASSY 9373865018 9373865018 *743 REMOCON HOLDER CASE 9305642014 9305642014 FAN CAPACITOR 9700468042 9700468042 DRAIN CAP 9356541007 9356541007 SIROCCO FAN ASSY...
  • Page 225 Models : AS 7UFADR AS 9UFADR AS 12UFADR AS 14UFADR 10-37...
  • Page 226 10-38...
  • Page 227 D I S A S S E M B L Y I L L U S T R A T I O N Models : AS 18UFAJR AS 24UFAJR 473-1 574-2 163-2 564-2 160-1 855-2 574-1 855-1 178-1 338-1 338-2 69-1 178-1 963-1...
  • Page 228 Models : AS 18UFAJR AS 24UFAJR 10-40...
  • Page 229 Models : AS 18UFAJR AS 24UFAJR 10-41...
  • Page 230 Models : AS 18UFAJR AS 24UFAJR 10-42...
  • Page 231 Models: AS 7UFADR AS 9UFADR P A R T S L I S T AS 12UFADR AS 14UFADR When you order parts, please make a photocopy of this page and fill the number of the parts in the "Order" column. INDOOR UNIT Ref.
  • Page 232 ASY18UFAJR Models : ASY24UFAJR P A R T S L I S T When you order parts, please make a photocopy of this page INDOOR UNIT and fill the number of the parts in the "Order" column. Part No. Ord. Part No.
  • Page 233 Model : AS30UFAJR 61-1 236-2 236-1 473-1 574-2 146-1 160-1 855-2 574-1 855-1 178-1 338-2 338-1 69-1 178-1 69-2 876-1 R8923 R8971 876-1 10-45...
  • Page 234 Model : AS30UFAJR 10-46...
  • Page 235 Model : AS30UFAJR 10-47...
  • Page 236 Models : AS30UFAJR PARTS LIST Parts No. Parts No. Discription Discription AS 30UFAJR Q'ty No. AS 30UFAJR Q'ty FAN CAPACITOR 9704305060 MOTOR BASE 9368555009 WATER SEAL PLATE 9369684005 DISPLAY COVER 9368564001 DECORATION PLATE F. 9368757014 COUPLING PIPE AS 9371333014 61-1 AIR FILTER 9373613015 735-1...
  • Page 237 SERIES 1116, Suenaga, Takatsu-ku, Kawasaki 213-8502, Japan Product specifications are subject to change without notice. " " is a worldwide trademark of FUJITSU GENERAL LIMITED. © Copyright 2002 Fujitsu General Limited. All rights reserved. Printed in Japan 2006.04.27...

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