Fujitsu Airstage V series Service Manual
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Fujitsu Airstage V series Service Manual

Multi air conditioning system for buildings
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Variable Refrigerant Flow System
Multi Air Conditioning System for Buildings

SERVICE MANUAL

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Summary of Contents for Fujitsu Airstage V series

  • Page 1: Service Manual

    Variable Refrigerant Flow System Multi Air Conditioning System for Buildings SERVICE MANUAL...

  • Page 2: Table Of Contents

    CONTENTS 1. TEST RUN 1-1 CHECK ITEMS BEFORE TEST RUN................. 01-01 1-2 TEST RUN METHOD....................01-03 1-2-1 Procedure......................01-03 1-2-2 Test Run From Outdoor PC Board............... 01-04 1-2-3 Test Run From Remote Controller............... 01-04 1-3 TEST RUN CONTROL....................01-06 2. FUNCTION OF PRINTED CIRCUIT BOARD 2-1 PCB LAYOUTS......................

  • Page 3: Table Of Contents

    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 (General Consideration).............. 03-02 3-2 CIRCUIT DESCRIPTION.................... 03-03 3-2-1 Filter PCB......................03-03 3-2-2 Current Transformer....................

  • Page 4: Table Of Contents

    CONTENTS 5. INDOOR UNIT OPERATION 5-1 FAN CONTROL......................05-01 05-01 5-1-1 Fan Speed Setting....................5-1-2 "AUTO" Position....................05-01 5-2 MASTER CONTROL....................05-02 05-02 5-2-1 Operation Mode Control..................5-2-2 Auto Changeover....................05-02 5-2-3 "COOL" Position....................05-03 5-2-4 "HEAT" Position....................05-03 05-03 5-2-4 "FAN"...
  • Page 5 CONTENTS 7. APPENDING DATA 7-1 REFRIGERANT PIPE SYSTEM DIAGRAM............... 07-01 7-2 CHARACTERISTICS OF SENSORS................. 07-05 07-05 7-2-1 Pressure Sensor..................7-3 WIRING DIAGRAM..................... 07-08 07-08 7-3-1 Indoor Unit...................... 7-3-2 Outdoor Unit....................07-21 7-4 OUTDOOR INTERNAL LAYOUT................07-25 7-5 MODEL DESIGNATION....................07-30 8.
  • Page 6 1 . TEST RUN...

  • Page 7: Check Items Before Test Run

    1. TEST RUN 1-1 CHECK ITEMS BEFORE TEST RUN Before test run, check the following items. Outdoor Outdoor Outdoor 50Hz unit unit unit 220-240V (Slave 2) (Slave 1) (Master) 50Hz 380-415V Indoor Indoor unit unit Wired remote controller 50Hz 220-240V Transmission line Central remote controller...
  • Page 8 Check Section check item Description Standard field Pipe heat insulating Use the Pipe heat insulating material Others DESIGN&TECHNICAL DATA material as per specifications. 6-2-5 SELECTION OF PIPE HEAT INSULATIONG MATERIAL Drain water does not collects in the middle of drain hose. Drain Indoor unit INSTALLATION MANUAL...

  • Page 9: Test Run Method

    1-2 TEST RUN METHOD 1-2-1 Procedure Turn Power On check Procedure Check item field 1. Turn on Supply power to the crankcase heater for 12 hours prior to outdoor unit power the start of operation if the outdoor temperature is lower than 20 There are not instrument anomalies.

  • Page 10: Test Run From Outdoor Pc Board

    1-2-2 Test Run From Outdoor PC Board All the indoor units connected to the outdoor unit can be test-operated by DIP switch setting. (Only for master unit) SW1-1 SW1-2 Test Run Remarks Normal operation SW1-1/SW1-2: OFF/ON or ON/OFF OFF/OFF Cooling test run SW1-1/SW1-2: OFF/OFF or ON/ON ON/OFF...

  • Page 11: Simple Remote Controller

    3. Simple remote controller UTB-YPB / GPB / TPB 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. However the setting button does not have function but all other buttons, displays and protection functions will operate.

  • Page 12: Test Run Control

    1-3 TEST RUN CONTROL 1. When the test run signal is transmitted from standard wired, wireless remote controller, simple remote controller and central remote controller. (1) The test run operation starts and the electric expansion valve is controlled to a maximum flow, regardless of the temperature condition.
  • Page 13 2 . FUNCTION OF PRINTED CIRCUIT BOARD...

  • Page 14: Pcb Layouts

    2. FUNCTION OF PRINTED CIRCUIT BOARD 2-1 PCB LAYOUTS 2-1-1 Indoor Unit Control Circuit Board 1 Forbidden Forbidden SW 1 3 Room temp correct coefficient of heating 1 4 Room temp correct coefficient of heating 2 1 Room temp correct coefficient of cooling Forbidden SW 2 3 Refrigerant type...
  • Page 15 2.COMPACT WALL MOUNTED TYPE 1 Forbidden (Indoor unit fan speed switch 1) 2 Forbidden (Indoor unit fan speed switch 2) SW 1 3 Forbidden 4 External input select edge / pulse 1 Forbidden (Indoor unit model code) 2 Forbidden (Indoor unit model code) SW 2 3 Forbidden 4 Auto restart validity / invalidity...

  • Page 16: Outdoor Unit Control Circuit Board

    2-1-2 Outdoor Unit Control Circuit Board 1 Test run (Cooling) 2 Test run (Heatling) SW 1 3 Pump down operation Forbidden 1 Silent operation mode 2 Snow falling protection fan mode SW 2 3 Sequential start shift switch 1 4 Sequential start shift switch 2 1 Outdoor unit capacity switch 1 2 Outdoor unit capacity switch 2 SW 3...

  • Page 17: Wired, Simple Remote Controller Circuit Board

    2-1-3 WIRED, SIMPLE REMOTE CONTROLLER CIRCUIT BOARD Wired remote controller MODEL : UTB - UB Front case (back side) DIP Switch Simple remote controller MODEL : UTB - PB MODEL : UTB - RA DIP switch DIP switch Wired, simple remote controller Dual remote controller setting Group control setting DIP SW...

  • Page 18: Central Remote Controller Circuit Board

    2-1-4 Central Remote Controller Circuit Board DIP SW2 DIP SW3 SWITCH 42 Central remote controller External input validity / invalidity External input select edge / pulse Filter sign indication ON / OFF Temperature display C / F SW 2 RC operation prohibit function validity/invalidity Forbidden DIP SW Forbidden...

  • Page 19: Network Convertor Circuit Board

    2-1-5 Network Convertor Circuit Board Network convertor (UTR-YRDA) Indoor unit control method SW 103 Number of connected indoor units DIP SW Forbidden SW 107 Wired remote controller validity / invalidity External input validity / invalidity SW 108 External input select edge / pulse Auto changeover validity / invalidity SW 109 Auto restart validity / invalidity...
  • Page 20 Item Type Details Forbidden Push switch Push switch Service pin It is used for the commissioning. Push switch Forbidden It is used for the initial setting. Push switch Set button It is used for the initial setting. The CPU will be reset. CPU reset Push switch Forbidden...

  • Page 21: Signal Amplifier Circuit Board

    2-1-6 Signal Amplifier Circuit Board Item Type Details Forbidden Push switch Push switch Forbidden It is used for the initial setting. Push switch Mode button It is used for the initial setting. Push switch Set button It is used for the initial setting. The CPU will be reset. Reset button Push switch Forbidden...

  • Page 22: Group Remote Controller Circuit Board

    2-1-7 Group Remote Controller Circuit Board Group remote controller (UTB-YDA / GDA) Front case (back side) DIP SW Group remote controller Memory backup setting DIP SW Forbidden 02-09...

  • Page 23: External Switch Controller Circuit Board

    2-1-8 External Switch Controller Circuit Board External switch controller (UTR-YESA) Connector SW 2 SW 1 DIP SW 3 Common DIP SW 2 Earth DIP SW 4 3. Black DIP SW 5 2. White 1. Red DIP SW 1 External switch controller MODE setting DIP SW SW 1...

  • Page 24: Microprocessor Function List

    2-2 MICROPROCESSOR FUNCTION LIST 2-2-1 Indoor Unit High Pressure Duct Cassette Duct Ceiling Duct Ceiling (compact) INDOOR UNIT TYPE Duct Floor Silent Silent 36/45/60 Compact Standard 25 (24) MODEL CODE AC IN TH. FUSE FAN CAPA FAN MOTOR D. PUMP S.
  • Page 25 Big Wall Ceiling INDOOR UNIT TYPE Mounted Wall 25 (24) MODEL CODE TH. FUSE FAN MOTOR FAN MOTOR D. PUMP S. VALVE DIFFUSER/SP (U,D) SP-M (R/L) DISPLAY-1 DISPLAY-2 CN10 F. BACK CN11 TEST CN12 E.E.VALVE CN13 REMOCON CN14 FLOAT. SW CN15 NETWORK CN16...
  • Page 26 Compact Wall Mounted INDOOR UNIT TYPE (E chassis) MODEL CODE FLASH_R/W TEST TH-FUSE SP-MOTOR DISPLAY FAN MOTOR REMOCON EX. OUTPUT EX. IN CN10 R-TH CN11 P-TH CN12 P-TH CN13 E .E .VALVE CN14 S. VALVE CN15 COMMUNICATION CN16 NETWORK CN17 COMMUNICATION-PWB CN18 (S-TH)

  • Page 27: Outdoor Unit

    2-2-2 Outdoor Unit OUTDOOR UNIT TYPE AJ 126LBTF AJ A90/72LBTF AJ 126UBTF AJ A90/72UBTF AC IN FAN.1 FAN.2 CRANK CASE HEATER 1 CRANK CASE HEATER 2 CRANK CASE HEATER 3 S.V.1 S.V.2 CN10 S.V.3 CN11 S.V.4 CN12 S.V.5 CN13 S.V.6 CN14 CN15 BASE HEATER...

  • Page 28: Function And Setting Of Each Switch

    2-3 FUNCTION AND SETTING OF EACH SWITCH 2-3-1 Indoor Unit SW1 setting DIP-SW1-1, SW1-2 setting forbidden SW1-1 SW1-2 Room temperature correct coefficient of heating. Set the heating correct coefficient value for setting temperature. Indoor unit will be continued to operate until reaching to "Set Temperature"...

  • Page 29: Indoor Unit

    SW3 setting (Never change at the site) Indoor unit fan speed switch This switch can select fan speed corresponding to each model. Compact Cassette Type AUXB07 AUXB09 AUXB12 AUXB14 AUXB18 SW 3-1 SW 3-2 SW 3-3 Cassette Type AU*A20 AU*A25 AU*A30 AU*A36 AU*A45...
  • Page 30 External input select edge / pulse This switch is used to select the format of external input command as shown in the table below. Factory setting) External input select SW3-4 Edge Pulse SW4 setting (Never change at the site) Indoor unit model code This switch for changing the model code information of indoor unit PCB.
  • Page 31 SW6,7 setting Indoor unit address switch Sets the indoor unit addresses. Please see "6-5-3 address setting" for type A indoor unit address conversion table. INDOOR UNIT ADDRESS SWITCH (Factory setting SW 6: 0 SW 7: 0) Rotary SW Description Remarks Indoor unit Indoor unit address address SW 1...
  • Page 32 2-3-2 Indoor Unit ( COMPACT WALL MOUNTED TYPE ) * COMFORT MODEL SW1 setting Fan speed setting switch (Never change at the site) The fan speed corresponding to each model is set with the switch. AS*E07 AS*E09 AS*E12 AS*E14 SW1-1 SW1-2 DIP-SW 1-3 setting forbidden Factory setting)
  • Page 33 SW3 setting Wireless remote controller custom code switch Decide the custom code and restrict the type of infrared control signal, in order to prevent mixing of multiple indoor unit signals. Remote controller custom code switch Factory setting) SW3-1 SW3-2 Custom code Type A 1.
  • Page 34 SW5 setting Refrigerant circuit address By combined with Rotary SW7 ,the refrigerant circuit address (0-99) can be set. Please refer "6-5-3 ADDRESS SETTING" for refrigerant address conversion table. Factory setting) Refrigerant SW5-1 SW5-2 SW5-3 Remarks circuit address 0 - 15 16 - 31 32 - 47 Set with Rotary...
  • Page 35 2-3-3 Outdoor Unit Master unit Slave unit Test run (Cooling) Test run (Heating) (For heat pump type) SW 1 Pump down operation Forbidden Silent operation mode Snow falling protection fan mode SW 2 Sequential start shift switch 1 Sequential start shift switch 2 Outdoor unit capacity switch 1 Outdoor unit capacity switch 2 SW 3...
  • Page 36 SW1 setting Test run ( cooling & Heating ) ( Only for master unit ) All the indoor units connected to the outdoor unit can be test-operated by DIP switch setting. Factory setting) SELECTOR SWITCH FOR TEST RUN AND NORMAL OPERATION SW1-1 SW1-2 Test Run...
  • Page 37 SW3 setting Outdoor unit capacity switch (Setting for each unit. Never change at the site) Set the Dip SW to correspond to the outdoor unit capacity. Factory setting) SW3-1 SW3-2 Capacity range 8 HP 10 HP 14 HP Forbidden Outdoor unit address switch (Setting for each unit) Set the Dip SW to correspond to the outdoor unit address.
  • Page 38 SW5 setting Cooling Capacity shift SW ( Only for master unit ) This setting makes it possible to vary the outflow air temperature with in the range of about 2 degrees, by which 15% capacity increase and energy saving operation are realized. COOLING CAPACITY SHIFT SW ( Factory setting) SW 5-1...
  • Page 39 SW10 setting Dip SW 10-1, 10-2, 10-3, 10-4 setting forbidden Factory setting) SW10-1 SW10-2 SW10-3 SW10-4 SW8,9 setting Set the refrigerant circuit address See "6-5 system setting" for detail. Rotary SW Description Remarks Refrigerant circuit Refrigerant circuit address (the first digit) address 1 Refrigerant circuit Refrigerant circuit address (the second digit)

  • Page 40: Wired, Simple Remote Controller

    2-3-4 Wired, Simple Remote Controller Indoor unit SW1 setting Remote controller cable 1 2 3 Dual remote controller setting When ground wire is necessary Set the remote controller DIP switch No.1 and 2 according to the following table. Factory setting) 1 2 3 1 2 3 Number of...

  • Page 41: Central Remote Controller

    2-3-5 Central Remote Controller SW2 SETTING External input validity / invalidity For validity / invalidity the external input function. Factory setting) SW2-1 External input function Invalidity Validity External input select edge / pulse Select the external input command function. Factory setting) SW2-2 External input select Edge...
  • Page 42 SW2-6 2-7 setting forbidden. SW 2-6 SW 2-7 Memory backup setting When installing the central remote controller, this switch must be set to ON. (factory setting : OFF) Factory setting) SW2-8 Memory backup setting At the time of shipment, the battery is turned off to avoid electricity consumption. Be sure to set this switch to ON.

  • Page 43: Network Convertor

    2-3-6 Network Convertor Table 1. Compatible indoor units J-series Wireless RC model Big multi Simultaneous model Individual model Single split type Wired RC model Wireless RC model Window type The following indoor unit models may be controlled from a network convertor. However, the indoor unit cannot be controlled if a wired remote controller cannot be connected to it.
  • Page 44 2. DIP- SW103 (5, 6, 7, 8) Setting the number of connected indoor units Set the number of connected indoor units as shown in Table 4. Factory setting) Table 4 Connected indoor units setting Number of Number of Number of DIP-SW 103 DIP-SW 103 DIP-SW 103...

  • Page 45: Signal Amplifier

    2-3-7 Signal Amplifier Turn on the power for the signal am- While holding down the set button Press the set button (SW4) to dis- plifier. (SW4), press and release the reset play the current address. The ad- button (SW7) to enter the address dress is set to A1 at the factory.

  • Page 46: External Switch Controller

    2-3-9 External Switch Controller 1. DIP SW SETTING (1) MODE setting. Sets the mode. Factory setting) SW1-1 SW1-2 MODE setting Detail MODE 0 This MODE sets to P1 operation mode if SW1 has a contact input of DIP-SW3-5. This MODE sets to P2 operation mode if SW2 has a contact input of DIP-SW5-5. MODE 1 This MODE sets to P1 operation mode if a contact of SW1 is switched ON OFF.
  • Page 47 (5) Operation mode setting Operation mode setting of parameter setting 1(P1) SW2-1 SW2-2 Operation SW2-3 SW2-4 SW2-5 SW2-6 Set temperature invalidity invalidity *2*3 *2*3 SET BACK SW3-1 SW3-2 Operation mode invalidity COOL HEAT *2*3 Not setting SW3-3 SW3-4 Fan speed invalidity HIGH *1 Setting of SETBACK turns back the operation state to that of before switching...
  • Page 48 (8) Operation mode setting Operation mode setting of parameter setting 2(P2) SW4-1 SW4-2 Operation SW4-3 SW4-4 SW4-5 SW4-6 Set temperature invalidity invalidity *2*3 *2*3 SET BACK SW5-1 SW5-2 Operation mode invalidity COOL HEAT *2*3 Not setting SW5-3 SW5-4 Fan speed invalidity HIGH *1 Setting of SETBACK turns back the operation state to that of before switching...
  • Page 49 2-4 EXTERNAL INPUT & OUTPUT 2-4-1 Indoor Unit 1. Control input (Operation/Stop) Indoor unit can be operated or stopped by using the connector CN27(RED) on indoor unit PCB. Resistance < 500(ohm) ( Switch : ON ) Resistance > 100(Kilo-ohm) ( Switch : OFF ) A twisted-pair cable(AWG22) should be used maximum length of cable is 25m.
  • Page 50 2. Output CONNECTOR OUT VOLTAGE STATUS Operation CN22 Stop Error CN23 Normal Fan run CN24 Fan stop (1) Operation display Indoor Operation unit Operation CN 22 Stop Indicator (WHITE) CN 22 (2) Error display Error Indoor unit Error CN 23 Normal Indicator (WHITE)

  • Page 51: Indoor Unit (Compact Wall Mounted)

    2-4-2 Indoor Unit (COMPACT WALL MOUNTED) CONTROL INPUT (Operation / Stop) Indoor unit can be operated or stopped by using the connector CN9 (RED) ON indoor unit PCB. < = Open circuit voltage : 5.25 (V). < = Short circuit current : 0.6 (mA).
  • Page 52 OUTPUT CONNECTOR STATUS OUTPUT VOLTAGE Operation (WHITE) Stop Output voltage : Hi DC12V + 2V Permissible current : 15mA Operation display The output for CN8 is ON when the indoor unit is operating. The output is off when the unit is stopped. Indoor Operation CN 8...
  • Page 53 2-4-3 Outdoor Unit 1. Input Heat and Cool switch (Heat pump and Master unit only) "Cooling priority" or "Heating priority" can be selected by this input. INPUT CONNECTOR STATUS REMARKS SIGNAL Remote Controller priority CN50 (YELLOW) External input priority Cooling priority CN52 CN50 need to (GREEN)

  • Page 54: Central Remote Controller / Pc Controller

    2-4-4 Central Remote Controller / PC Controller 1. Input (1) Control input (All on / All off) Indoor units which stored into Central R.C. or PC controller can be operated or stopped by this input. Input select Central remote controller DipSW2-1 DipSW2-2 Input select...
  • Page 55 2. Output (1) Operation display This output indicates the indoor unit's "Operate" or "Stop" status. OUTPUT CONNECTOR STATUS SIGNAL open All of indoor units "OFF" (WHITE) short At least one more indoor units "ON" Indoor ON /OFF Unit Indicator short (WHITE) Error Indicator...
  • Page 56 2-4-5 Network Convertor The connector positions and pin number of network convertor (UTR-YSSA) for external input and output are shown in the right figure. D129 *UTR-YRDA doesn't provide the function of external Input/Output. SW107 SW108 SW109 SW103 3 2 1 .
  • Page 57 2. Output (1) Operation display (EXT OUT1) This output indicates the indoor unit's "Operation" or "Stop" status. OUTPUT CONNECTOR STATUS SIGNAL Indoor units "Stop" Open CN108 (BLACK) Short Indoor units "Operation" Operation Indoor Unit ON /OFF Stop Indicator CN108 Short CN108 (BLK) (BLK)
  • Page 58 3 . INVERTER CONTROL...

  • Page 59: Inverter Control

    3. DC INVERTER CONTROL METHOD 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 60: Basic Circuit Of 3 Phase Inverter

    3-1-3 Basic Circuit of 3 Phase Inverter U - V MOTOR V - W W - U 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 frequency.

  • Page 61: Filter Pcb

    3-2 CIRCUIT DISCRIPTION 3-2-1 Filter PCB 1. Varistor When an abnormal voltage is applied between the terminal of varistor (VA101), it shorts out and the circuit protection is carried out. 2. Noise Filter A lot of different kinds of pulse noise come out of inverter since it Controls transistors by switching. Noise filter protects these noises to come out of inverter by absorbing the noise with the coil and bypassing the high harmonic frequency with capacitor.
  • Page 62 4 . OUTDOOR UNIT OPERATION CONTROL...

  • Page 63: Input / Output List

    4. OUTDOOR UNIT 4-1 INPUT / OUTPUT LIST Input / output or kind of detail Control range Discharge pressure sensor Pressure sensor Measure range 0.0 to 5.0MPa Suction pressure sensor Pressure sensor Measure range 0.0 to 5.0MPa Discharge temperature sensor 1 Themistor Measure range 10 to 130 Discharge temperature sensor 2...

  • Page 64: Compressor Operation

    4-2 COMPRESSOR OPERATION 4-2-1 Operation / Stop Condition (1) Compressor operation condition When cooling requirement capacity or heating requirement capacity from either 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) (Refer to 6-2-4)

  • Page 65: Frequency Range Of Start,Stop,And Operation

    4-2-3 Frequency range of start, stop, and operation (For DC inverter scroll compressor) On stop mode : 0 Hz On operating mode : 30 - 94Hz Frequency limit of after starting : After starting, frequency of 60sec. the compressor makes the shift to the target frequency after holding 60Hz in operation frequency for a while.

  • Page 66: Compressor Sequence Operation

    4-2-5 Compressor Sequence Operation (1) Starting and stop control of the outdoor unit is performed by starting sequence and stop sequence of the compressor. (Example: Three 14HP outdoor units are connected.) But the following conditions shall be fulfilled. (1-1) DC inverter scroll compressor is not placed in the sequence. (1-2) If the DC inverter scroll compressor is in operation, the constant speed scroll compressor that starts first and stops last has to be the one in the master unit.

  • Page 67: Fan Control

    (2) In order to enhance reliability and endurance of system, it is monitoring accumulating time of each compressor operating in the same refrigerant system. And when accumulating time of operating is over predetermined time, the compressor is stopped and the rest of stopped compressor is started. Thus, operating time of each compressor is averaged(Rotation operation).

  • Page 68: Snow Falling Protection Fan Mode

    4-3-3 Snow falling protection fan mode When turning on DipSW2-2(Snow falling protection fan mode) and the outdoor unit is stopping and Tout is below 5 , fan control enters Snow falling protection fan mode. When the outdoor unit starts the operation or Tout is above 7 fan control exits Snow falling protection fan mode.

  • Page 69: Oil Balance Operation

    4-5-2 Oil balance operation (1) Purpose of the operation Divide the oil equally between the outdoor units. When only one outdoor unit is connected : Oil balance operation does not operate. (2) Starting conditions Accumulated time of compressor operation 20 min. After oil recovery and defrost operation, when discharge SH is15 or more.

  • Page 70: Pre-Heat Operation

    4-5-3 Pre-heat operation When all compressors in the unit are turned off for 30 min. and regardless of outside temperature, crank case heater turns ON automatically. Crank case heater turns OFF again when any kind of outside temperature or one of compressor in the unit starts operation.

  • Page 71: Defrost Operation Control

    4-5-4 Defrost operation control (1) Starting condition of defrost operation Accumulated heating time has passed 40min and 20min after oil recovery operation, and then when it meets either of following conditions. Accumulated heating time is reset to zero by "cooling operation" and "end of defrost operation". Condition 1) Accumulated time of TH4(Heat exchanger temperature sensor value) -2degC is over 195min.

  • Page 72: Protective Function

    4-6 PROTECTIVE FUNCTION 4-6-1 Protective Function List < Cooling mode > Protective Function Operating Condition Operation Detect Parts > = Discharge Temp Discharge Temp Start: After 3 min startup, keep DISTH 100 or when the accumulated The signal that opens the EEV Protection 1 is sent to the indoor unit Thermistor...
  • Page 73 < Heating mode > EEV2 increases 30Pulse/30sec. > = Start: DISTH 107 Discharge Temp Discharge Temp Protection 2 Thermistor < = Release: DISTH 100 > = Discharge Temp Discharge Temp The compressor stops. Start: DISTH 120 Protection Stop Thermistor (more than 3 minutes) <...
  • Page 74 5 . INDOOR UNIT OPERATION...
  • Page 75 5. INDOOR UNIT OPERATION 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 The fan speed is determined automatically in accordance Hi zone with the condition "(T (corrected room temperature) - T...

  • Page 76: 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, Dry and Heat Mode Cool HEAT Indoor fan motor...
  • Page 77 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 78: Louver Control

    5-3 LOUVER CONTROL (1) ADJUSTING THE DIRECTION OF AIR CIRCULATION Instructions relating to heating ( ) are applicable only to heat pump type DAY OFF CLOCK ADJUST ENERGY THERMO SET BACK SAVE SENSOR outdoor unit. Begin air conditioner operation before performing this procedure. DELETE Vertical Air Direction Adjustment This instructions are applicable to "LARGE CEILING TYPE",...
  • Page 79 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 80 To Stop Vertical airflow SWING Operation Press the VERTICAL SWING button for more than two seconds once and again. 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. Air swing range (Expect for compact wall mounted type indoor unit) Instructions relating to "the indoor unit's indicator lamp"...

  • Page 81: Electronic Expansion Valve Control

    5-4 ELECTRONIC EXPANSION VALVE CONTROL 1. Initialization When the power is turned ON. When it has passed the limited time since the last initialization. 2. Operation Control When indoor unit stopping Outdoor unit Condition EEV Condition Fully closed Cooling Fully closed Heating Slightly open When starting up...

  • Page 82: Function

    5-6 FUNCTION 5-6-1 Auto Restart The air conditioner restarts with the previous setting operation. 5-6-2 Icing Protection Control The icing of the indoor heat exchanger is prevented during the cooling and dry mode operation. (1) Starting Condition Compressor is operation more than 3 minutes. When "Heat exchanger inlet temperature "...

  • Page 83: Timer Control

    5-7 TIMER CONTROL 5-7-1 Wireless Remote Controller There are following 4 kinds of timer modes are available. ON Timer OFF Timer PROGRAM Timer SLEEP Timer 1. ON / OFF TIMER Instructions relating to heating are applicable only to "HEAT & COOL MODEL" (Reverse Cycle). The timer functions cannot be used when this controller is used together with the remote controller (Wired type).
  • Page 84 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 85: Group Remote Controller

    5-7-2 Group Remote Controller UTB - YDA/GDA WEEKLY TIMER 1. WEEKLY TIMER Instructions related to heating are applicable to "HEAT PUMP MODELS" and "HEAT RECOVERY MODELS" only. The timer function is not available depending on the initial setting. The timer can be set up on different schedule for every day of the week. The timer can be set up 4 times in a day.
  • Page 86 Operation setting display no setting display AUTO COOL HEAT no setting * If the "ALL indoor unit" is selected and all of the indoor units are "COOLING ONLY MODEL", it can't be selected. * If the "ALL" is selected and all of the indoor units were mixture of "HEAT PUMP MODEL"...

  • Page 87: Wired Remote Controller

    5-7-3 Wired Remote Controller UTB - ON / OFF TIMER WEEKLY TIMER TEMPERATURE SET BACK TIMER 1. ON / OFF TIMER Instructions related to heating are applicable to "HEAT PUMP MODELS" and "HEAT RECOVERY MODELS" only. The timer function is not available depending on the model. To set the ON / OFF timer Press the TIMER MODE button to MO TU WE TH FR SA...
  • Page 88 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 3 6 9 12 15 18 21 the timer mode.

  • Page 89: Temperature Set Back Timer

    3. TEMPERATURE SET BACK TIMER Instructions related to heating are applicable to HEAT PUMP MODELS and HEAT RECOVERY MODELS only. The timer function is not available depending on the model. 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 90 6 . TROUBLE SHOOTING...

  • Page 91: Normal Operation

    6. TROUBLESHOOTING 6-1 NORMAL OPERATION 6-1-1 Indoor Unit Display Indication type Indication Lamp Flashing Pattern Operation Continuous lighting Operation LED Anti freeze * Continuous lighting(lowered light) Timer Timer LED Continuous lighting Vertical Swing Vertical Swing LED Continuous lighting Horizontal Swing Horizontal Swing LED Continuous lighting Power Failure *...

  • Page 92: Outdoor Unit Display

    6-1-2 OUTDOOR UNIT DISPLAY Indication type LED Flashing Pattern Idling(stop) * LED1 Continuous Lighting Cooling mode Flashes 1 time LED2 Heating mode Flashes 2 times Compressor 1 Output Flashes 1 time Compressor 2 Output Flashes 2 times Compressor 3 Output Flashes 3 times Compressors 1,2 Output LED3...

  • Page 93: Operation Not Trouble

    6-1-3 Operation Not Trouble Following conditions of Indoor unit are not defects. Operation Description Operation LED is flashing If a power is cut off during the operation by such as power failure, Operation LED and Timer LED flashes alternately. During a test operation, Operation LED and Timer LED repeat flashing at the same time.

  • Page 94: Abnormal Operation

    6-2 ABNORMAL OPERATION 6-2-1 Indoor Unit Display Please refer the flashing pattern as follows. Vertical Horizontal Trouble Error Contents Operation LED Timer LED Swing LED Swing LED shooting Model Information Error Continuous flash Continuous flash Continuous Continuous Power Freq. Error Continuous flash Continuous flash flash...

  • Page 95: Remote Controller

    6-2-2 Remote Controller << SIMPLE REMOTE CONTROLLER >> Run [Self-Diagnosis] if [EE] flashes on the display of the remote controller. The error of the indoor unit is displayed. Stop the air conditioner operation. Press the button and the button at the same time for more than 5 seconds to start the self-diagnosis.
  • Page 96 6-2-3 Outdoor Unit Display Please refer to “TROUBLE LEVEL OF SYSTEM” for Outdoor unit condition of following errors. Please refer to previous page for flashing pattern. Trouble Error Contents LED Flashing Pattern shooting Compressor 1 Error 1 time flash Compressor 2 Error 2 times flash Compressor 3 Error 3 times flash...

  • Page 97: Trouble Level Of System

    6-2-4 TROUBLE LEVEL OF SYSTEM << System Condition when Outdoor Unit Error is occurred >> Trouble Level Outdoor unit System Error Flag Error Flag It is not indicated on Indoor Unit. It is indicated on Indoor Unit. It is indicated on Peripheral Unit. It is also indicated on Peripheral It operates continuously.

  • Page 98: Trouble Shooting

    6-3 TROUBLE SHOOTING 6-3-1 How to Trouble Shoot From the Symptom Symptom Check method Details Check power supply Isn’t the breaker down? (Refer to Trouble shooting 49, 50) Check system Is this model possible to connect the subject indoor unit, outdoor unit, and remote control? (Refer to Installation Manual, D&T Manual) Check setting up and Address set up of indoor and outdoor correct?

  • Page 99: Trouble Shooting With Error Code (Indoor Unit)

    6-3-2 Trouble shooting with error code (INDOOR UNIT) Indicate or Display: Trouble shooting 1 Indoor Unit : Operation LED Flash, Timer LED Flash INDOOR UNIT Error Method: Swing LED OFF Outdoor Unit : LED1 Flash, LED6 1Time Blink Model Information Error ERROR CODE : E : 02 Detective details: Detective Actuators:...
  • Page 100 Indicate or Display: Trouble shooting 2 Indoor Unit : Operation LED Flash, Timer LED Flash INDOOR UNIT Error Method: Swing LED Flash Outdoor Unit : LED1 Flash, LED6 1Time Blink Power Frequency Abnormal ERROR CODE : E : 04 Detective Actuators: Detective details: When 5 continuous failures occurred at Power frequency test.
  • Page 101 Indicate or Display: Trouble shooting 3 Indoor Unit : Operation LED Flash, Timer LED 4 Times Blink INDOOR UNIT Error Method: Swing LED 1 Time Blink Outdoor Unit : LED1 Flash, LED6 1Time Blink EEPROM Access Abnormal ERROR CODE : E: 06 Detective details: Detective Actuators: Indoor Unit Controller PCB Circuit...
  • Page 102 Indicate or Display: Trouble shooting 4 Indoor Unit : Operation LED 2 Times Blink, Timer LED Flash INDOOR UNIT Error Method: Swing LED OFF Outdoor Unit : LED1 Flash, LED6 1Time Blink Indoor Temperature sensor error ERROR CODE : E : 09 Detective details: Detective Actuators: Indoor Unit Controller PCB Circuit...
  • Page 103 Indicate or Display: Trouble shooting 5 Indoor Unit : Operation LED 3 Times Blink, Timer LED Flash INDOOR UNIT Error Method: Swing LED 1 Time Blink Outdoor Unit : LED1 Flash, LED6 1Time Blink Heat Exchanger Inlet Sensor Error ERROR CODE : E : 0b Detective Actuators: Detective details: Indoor Unit Controller PCB Circuit...
  • Page 104 Indicate or Display: Trouble shooting 6 Indoor Unit : Operation LED 3 Times Blink, Timer LED Flash INDOOR UNIT Error Method: Swing LED 2 Times Blink Outdoor Unit : LED1 Flash, LED6 1Time Blink Heat Exchanger Middle Sensor Error ERROR CODE : E : 0A Detective Actuators: Detective details: Indoor Unit Controller PCB Circuit...
  • Page 105 Indicate or Display: Trouble shooting 7 Indoor Unit : Operation LED 4 Times Blink, Timer LED Flash INDOOR UNIT Error Method: Swing LED OFF Outdoor Unit : LED1 Flash, LED6 1Time Blink Water Drain Abnormal ERROR CODE : E : 11 Detective details: Detective Actuators: Indoor Unit Controller PCB Circuit...
  • Page 106 Indicate or Display: Trouble shooting 8 Indoor Unit : Operation LED 6 Times Blink, Timer LED Flash INDOOR UNIT Error Method: Swing LED OFF Outdoor Unit : LED1 Flash, LED6 1Time Blink Indoor Unit Fan Motor Abnormal ERROR CODE : E : 13 Detective details: Detective Actuators: When Indoor fan control is either phase control or DC control and rotation feed...
  • Page 107 Indicate or Display: Trouble shooting 9 Indoor Unit : Operation LED 5 Times Blink, Timer LED Flash INDOOR UNIT Error Method: Swing LED 1 Time Blink Outdoor Unit : LED1 Flash, LED6 1Time Blink Standard Wired Remote Error ERROR CODE : E : 18 Detective Actuators: Detective details: Indoor unit controller PCB circuit...
  • Page 108 Indicate or Display: Trouble shooting 11 Indoor Unit : Operation LED Flash, Timer LED 6 Times Blink INDOOR UNIT Error Method: Swing LED OFF Communication Error between Outdoor Unit : LED1 Flash, LED6 1Time Blink Controller PCB and Transmission PCB ERROR CODE : E : 21 Detective Actuators: Detective details:...
  • Page 109 Indicate or Display: Trouble shooting 12 Indoor Unit : Operation LED Flash, Timer LED 5 Times Blink INDOOR UNIT Error Method: Swing LED 1 Time Blink Outdoor Unit : LED1 Flash, LED6 1Time Blink Network Communication Error ERROR CODE : E : 1F Detective Actuators: Detective details: Indoor unit Controller PCB circuit...
  • Page 110 Indicate or Display: Trouble shooting 12-A Indoor Unit : No display INDOOR UNIT Error Method: Outdoor Unit : LED1 Flash, LED6 3Time Blink Indoor unit number shortage error ERROR CODE : No display Detective Actuators: Detective details: Indoor unit Controller PCB circuit When the indoor unit number decreases for 3 minutes from Indoor unit Communication PCB the number memorized in the outdoor units memory.

  • Page 111: Trouble Shooting With Error Code (Outdoor Unit)

    6-3-3 Trouble Shooting With Error Code (OUTDOOR UNIT) Trouble shooting 13 Indicate or Display: OUTDOOR UNIT Error Method: Outdoor Unit : LED1 Flash, LED2 1 Time Blink Compressor 1 Abnormal Indoor Unit : Operation LED Flash, Timer LED 3 Time Blinks, Swing LED 3 Time Blinks ERROR CODE : E : 32 (Inverter Compressor)
  • Page 112 Trouble shooting 13 Indicate or Display: OUTDOOR UNIT Error Method: Outdoor Unit : LED1 Flash, LED2 1 Time Blink Compressor 1 Abnormal Indoor Unit : Operation LED Flash, Timer LED 3 Time Blinks, Swing LED 3 Time Blinks ERROR CODE : E : 32 (Constant Speed) Detective Actuators: Detective details:...
  • Page 113 [ CHECK 2 ] Forecast of Cause : 1. Valve is close 2. EEV, Solenoid Valve failure 3. Gas Leak, less 4. Discharge Thermistor failure 5. Outdoor Fan Operation failure 6. Outdoor Heat Exchanger clogged < Cooling mode > < Heating mode > Check Point 1 : Check if Gas Valve is open Check Point 1 : Check if Liquid Valve is open p If it is not open, open it and check the operation.
  • Page 114 Trouble shooting 14 Indicate or Display: OUTDOOR UNIT Error Method: Outdoor Unit : LED1 Flash, LED2 2 Time Blink Compressor 2 Abnormal Indoor Unit : Operation LED Flash, Timer LED 3 Time Blinks, Swing LED 3 Time Blinks ERROR CODE : E : 32 (Constant Speed) Detective Actuators: Detective details:...
  • Page 115 [ CHECK 2 ] Forecast of Cause : 1. Valve is close 2. EEV, Solenoid Valve failure 3. Gas Leak, less 4. Discharge Thermistor failure 5. Outdoor Fan Operation failure 6. Outdoor Heat Exchanger clogged < Cooling mode > < Heating mode > Check Point 1 : Check if Gas Valve is open Check Point 1 : Check if Liquid Valve is open p If it is not open, open it and check the operation.
  • Page 116 Trouble shooting 15 Indicate or Display: OUTDOOR UNIT Error Method: Outdoor Unit : LED1 Flash, LED2 3 Time Blink Compressor 3 Abnormal Indoor Unit : Operation LED Flash, Timer LED 3 Time Blinks, Swing LED 3 Time Blinks ERROR CODE : E : 32 (Constant Speed) Detective Actuators: Detective details:...
  • Page 117 [ CHECK 2 ] Forecast of Cause : 1. Valve is close 2. EEV, Solenoid Valve failure 3. Gas Leak, less 4. Discharge Thermistor failure 5. Outdoor Fan Operation failure 6. Outdoor Heat Exchanger clogged < Cooling mode > < Heating mode > Check Point 1 : Check if Gas Valve is open Check Point 1 : Check if Liquid Valve is open p If it is not open, open it and check the operation.
  • Page 118 Indicate or Display: Trouble shooting 16 Outdoor Unit : LED1 Flash, LED2 4 Times Blink OUTDOOR UNIT Error Method: Indoor Unit : Operation LED Lighted Continuously (Normal Operation) Discharge Temperature 1 Error ERROR CODE : E : 32 Detective details: Detective Actuators: Within 60 minutes of detecting Compressor 1 Discharge temperature at higher Outdoor Unit Controller PCB circuit...
  • Page 119 Indicate or Display: Trouble shooting 17 Outdoor Unit : LED1 Flash, LED2 5 Times Blink OUTDOOR UNIT Error Method: Indoor Unit : Operation LED Lighted Continuously (Normal Operation) Discharge Temperature 2 Error (No error display) ERROR CODE : E : 00 Detective details: Detective Actuators: Within 60 minutes of detecting Compressor 2 Discharge temperature at higher...
  • Page 120 Indicate or Display: Trouble shooting 18 Outdoor Unit : LED1 Flash, LED2 6 Times Blink OUTDOOR UNIT Error Method: Indoor Unit : Operation LED Lighted Continuously (Normal Operation) Discharge Temperature 3 Error (No error display) ERROR CODE : E : 00 Detective details: Detective Actuators: Within 60 minutes of detecting Compressor 3 Discharge temperature at higher...
  • Page 121 Indicate or Display: Trouble shooting 19 Outdoor Unit : LED1 Flash, LED2 7 Times Blink OUTDOOR UNIT Error Method: Indoor Unit : Operation LED Lighted Continuously (Normal operation) High Pressure Error (No error display) ERROR CODE : E : 00 Detective details: Detective Actuators: When Discharge pressure of higher than 4.1 Mpa is detected 3 times...
  • Page 122 Indicate or Display: Trouble shooting 20 Outdoor Unit : LED1 Flash, LED2 8 Times Blink OUTDOOR UNIT Error Method: Indoor Unit : Operation LED Flash, Timer LED 3 Times Blink Swing LED 3 Times Blink Low Pressure Error ERROR CODE : E : 32 Detective details: Detective Actuators: Low pressure is continued 0.1Mpa or less for 10 minutes and detects it 5 times...
  • Page 123 Indicate or Display: Trouble shooting 21 Outdoor Unit : LED1 Flash, LED2 9 Times Blink OUTDOOR UNIT Error Method: Indoor Unit : Operation LED Lighted Continuously (Normal Operation) Pump Down Error (No error display) ERROR CODE : E : 00 Detective details: Pump-down has continued for over 10 minutes.
  • Page 124 Indicate or Display: Trouble shooting 22 Outdoor Unit : LED1 Flash, LED3 1 Time Blink OUTDOOR UNIT Error Method: Indoor Unit : Operation LED Lighted Continuously (Normal Operation) Discharge Temp. Sensor 1 Error ERROR CODE : E : 00 (No error display) Detective Actuators: Detective details: Outdoor Unit Controller PCB circuit...
  • Page 125 Indicate or Display: Trouble shooting 23 Outdoor Unit : LED1 Flash, LED3 2 Time Blink OUTDOOR UNIT Error Method: Indoor Unit : Operation LED Lighted Continuously (Normal Operation) Discharge Temp. Sensor 2 Error (No error display) ERROR CODE : E : 00 Detective Actuators: Detective details: Outdoor Unit Controller PCB circuit...
  • Page 126 Indicate or Display: Trouble shooting 24 Outdoor Unit : LED1 Flash, LED3 3 Time Blink OUTDOOR UNIT Error Method: Indoor Unit : Operation LED Lighted Continuously (Normal Operation) Discharge Temp. Sensor 3 Error (No error display) ERROR CODE : E : 00 Detective Actuators: Detective details: Outdoor Unit Controller PCB circuit...
  • Page 127 Indicate or Display: Trouble shooting 25 Outdoor Unit : LED1 Flash, LED3 4 Times Blink OUTDOOR UNIT Error Method: Indoor Unit : Operation LED Flash, Timer LED 3 Times Blink Swing LED 3 Times Blink Heat Ex. Liquid Temp. Sensor Error ERROR CODE : E : 32 Detective Actuators: Detective details:...
  • Page 128 Trouble shooting 26 Indicate or Display: OUTDOOR UNIT Error Method: Outdoor Unit : LED1 Flash, LED3 5 Times Blink RCV Liquid Surface Sensor 1 Indoor Unit : Operation LED Lighted Continuously (Normal Operation) (No error display) ERROR CODE : E : 00 (Lower Limit) Error Detective Actuators: Detective details:...
  • Page 129 Trouble shooting 27 Indicate or Display: OUTDOOR UNIT Error Method: Outdoor Unit : LED1 Flash, LED3 6 Times Blink RCV Liquid Surface Sensor 2 Indoor Unit : Operation LED Lighted Continuously (Normal Operation) ERROR CODE : E : 00 (No error display) (Middle Limit) Error Detective Actuators: Detective details:...
  • Page 130 Trouble shooting 28 Indicate or Display: OUTDOOR UNIT Error Method: Outdoor Unit : LED1 Flash, LED3 7 Times Blink RCV Liquid Surface Sensor 3 Indoor Unit : Operation LED Lighted Continuously (Normal Operation) ERROR CODE : E : 00 (No error display) (Higher Limit) Error Detective Actuators: Detective details:...
  • Page 131 Trouble shooting 29-1 Indicate or Display: OUTDOOR UNIT Error Method: Outdoor Unit : LED1 Flash, LED3 8 Times Blink SC Heat Exchanger Outlet Temp Indoor Unit : Operation LED Lighted Continuously (Normal Operation) ERROR CODE : E : 00 (No error display) Sensor Error Detective Actuators: Detective details:...
  • Page 132 Indicate or Display: Trouble shooting 30 Outdoor Unit : LED1 Flash, LED3 9 Times Blink OUTDOOR UNIT Error Method: Indoor Unit : Operation LED Lighted Continuously (Normal Operation) Liquid Pipe Temp. Sensor 1 Error (No error display) ERROR CODE : E : 00 Detective Actuators: Detective details: Outdoor Unit Controller PCB circuit...
  • Page 133 Indicate or Display: Trouble shooting 31 Outdoor Unit : LED1 Flash, LED3 10 Times Blink OUTDOOR UNIT Error Method: Indoor Unit : Operation LED Lighted Continuously (Normal Operation) Liquid Pipe Temp. Sensor 2 Error (No error display) ERROR CODE : E : 00 Detective Actuators: Detective details: Outdoor Unit Controller PCB circuit...
  • Page 134 Indicate or Display: Trouble shooting 32 Outdoor Unit : LED1 Flash, LED3 11 Times Blink OUTDOOR UNIT Error Method: Indoor Unit : Operation LED Blink, Timer LED 3 Time Blinks, Suction Gas Temp. Sensor Error ERROR CODE : E : 32 Swing LED 3 Time Blinks Detective Actuators: Detective details:...
  • Page 135 Indicate or Display: Trouble shooting 33 Outdoor Unit : LED1 Flash, LED3 12 Times Blink OUTDOOR UNIT Error Method: Indoor Unit : Operation LED Blink, Timer LED 3 Time Blinks, Outdoor Temperature Sensor Error ERROR CODE : E : 32 Swing LED 3 Time Blinks Detective details: Detective Actuators:...
  • Page 136 Indicate or Display: Trouble shooting 34 Outdoor Unit : LED1 Flash, LED4 1 Time Blink OUTDOOR UNIT Error Method: Indoor Unit : Operation LED Flash, Timer LED 3 Times Blink Swing LED 3 Times Blink Discharge Pressure Sensor Error ERROR CODE : E : 32 Detective details: Detective Actuators: When Sensor Detection Voltage is detected at lower than 0.8V for 30 seconds,...
  • Page 137 Trouble shooting 36 Indicate or Display: OUTDOOR UNIT Error Method: Outdoor Unit : LED1 Flash, LED4 4 Times Blink Current Sensor Error Indoor Unit : Operation LED Blink, Timer LED 3Time Blinks, Swing LED 3Time Blinks, ERROR CODE : E : 32 (only for Master Unit) Detective Actuators: Detective details:...
  • Page 138 Indicate or Display: Trouble shooting 37 Outdoor Unit : LED1 Flash, LED5 1 Time Blink OUTDOOR UNIT Error Method: Indoor Unit : Operation LED Flash, Timer LED 3 Times Blink Swing LED 3 Times Blink Reverse Phase/Missing Phase Error ERROR CODE : E : 32 Detective Actuators: Detective details: When Reverse Protection Circuit (Relay) detects the reverse phase input, or a...
  • Page 139 Indicate or Display: Trouble shooting 38 Outdoor Unit : LED1 Flash, LED5 2 Times Blink OUTDOOR UNIT Error Method: Indoor Unit : Operation LED Blink, Timer LED 3Time Blinks, Inverter Error (Only for Main Unit) Swing LED 3Time Blinks, ERROR CODE : E : 32 Detective Actuators: Detective details: Outdoor Unit Controller PCB circuit...
  • Page 140 Indicate or Display: Trouble shooting 39 Outdoor Unit : LED1 Flash, LED5 3 Times Blink OUTDOOR UNIT Error Method: Indoor Unit : Operation LED Lighted Continuously (Normal Operation) EEPROM Access Error ERROR CODE : E : 00 (No error display) Detective Actuators: Detective details: Upon Outdoor Unit is started up, Access to EEPROM has been failed due to...
  • Page 141 Trouble shooting 40 Indicate or Display: OUTDOOR UNIT Error Method: Outdoor Unit : LED1 Flash, LED5 4 Times Blink Inverter Start-up Current Error Indoor Unit : Operation LED Blink, Timer LED 3Time Blinks, Swing LED 3Time Blinks, ERROR CODE : E : 32 (Only for Main Unit) Detective details: Detective Actuators:...
  • Page 142 Trouble shooting 41 Indicate or Display: OUTDOOR UNIT Error Method: Outdoor Unit : LED1 Flash, LED5 5 Times Blink Inverter Normal Current Error Indoor Unit : Operation LED Blink, Timer LED 3Time Blinks, Swing LED 3Time Blinks, ERROR CODE : E : 32 (Only for Main Unit) Detective details: Detective Actuators:...
  • Page 143 Trouble shooting 42 Indicate or Display: OUTDOOR UNIT Error Method: Outdoor Unit : LED1 Flash, LED5 6 Times Blink Inverter Communication Error Indoor Unit : Operation LED Blink, Timer LED 3Time Blinks, Swing LED 3Time Blinks, ERROR CODE : E : 32 (Only for Main Unit) Detective details: Detective Actuators:...
  • Page 144 Indicate or Display: Trouble shooting 43 Outdoor Unit : LED1 Flash, LED5 7 Times Blink OUTDOOR UNIT Error Method: Indoor Unit : Operation LED Flash, Timer LED 3 Times Blink Swing LED 3 Times Blink Parallel Communication Error ERROR CODE : E : 32 Detective Actuators: Detective details: Outdoor Unit Controller PCB circuit...
  • Page 145 Indicate or Display: Trouble shooting 44 Outdoor Unit : LED1 Flash, LED5 8 Times Blink OUTDOOR UNIT Error Method: Indoor Unit : Operation LED Flash, Timer LED 3 Times Blink Communication Error between Swing LED 3 Times Blink Outdoor Units ERROR CODE : E : 32 Detective details: In case of Main Unit : When the number of connected Slave Unit does not...
  • Page 146 Indicate or Display: Trouble shooting 45 Outdoor Unit : LED1 Flash, LED5 9 Times Blink OUTDOOR UNIT Error Method: Indoor Unit : Operation LED Flash, Timer LED 3 Times Blink Network Communication Error Swing LED 3 Times Blink (Only for Main Unit) ERROR CODE : E : 32 Detective details: Detective Actuators:...
  • Page 147 Indicate or Display: Trouble shooting 46 Outdoor Unit : LED1 Flash, LED5 10 Times Blink OUTDOOR UNIT Error Method: Indoor Unit : Operation LED Flash, Timer LED 3 Times Blink Main/Slave Unit Setting Error Swing LED 3 Times Blink (Only for Slave Unit) ERROR CODE : E : 32 Detective Actuators: Detective details:...
  • Page 148 Indicate or Display: Trouble shooting 48 Outdoor Unit : LED1 Flash, LED2 ~ 6 Lighted Continuously OUTDOOR UNIT Error Method: Indoor Unit : Operation LED Flash, Timer LED 3 Times Blink Swing LED 3 Times Blink Initial Setting Error ERROR CODE : E : 32 Detective details: In case of Main Unit : At the time of power ON, when the number of connected Detective Actuators:...
  • Page 149 Indicate or Display: Trouble shooting 49 Outdoor Unit : LED1 Flash, LED2 10 Time Blink OUTDOOR UNIT Error Method: Indoor Unit : Operation LED Flash, Timer LED 3 Time Blinks, 4-way valve Error Swing LED 3 Time Blinks ERROR CODE : E : 32 Detective details: Detective Actuators: Upon changing operation from other than heating to heating, and when the...
  • Page 150 Trouble shooting 50 Indicate or Display: OUTDOOR UNIT Error Method: Outdoor Unit : LED1 Flash, LED2 11 Times Blink All Compressors Abnormal of Indoor Unit : Operation LED Flash, Timer LED 3 Time Blinks, Swing LED 3 Time Blinks ERROR CODE : E : 32 1 unit.

  • Page 151: Trouble Shooting With No Error Code

    6-3-4 Trouble Shooting With NO Error Code Trouble shooting 51 Forecast of Cause : Indoor Unit - No Power 1. Power Supply failure 2. Outside cause 3. Electrical Component defective Check Point 1 : Check Installation Condition p Isn’t the breaker down? p Check loose or removed connection cable.
  • Page 152 Trouble shooting 52 Forecast of Cause : Outdoor Unit - No Power 1. Power Supply failure 2. Outside cause 3. Electrical Components defective Check Point 1 : Check Installation Condition p Isn’t the breaker down? p Check loose or removed connection cable. >>If abnormal condition is found, correct it by referring to Installation Manual or Data &...
  • Page 153 Trouble shooting 53 Forecast of Cause : 1. Setting/Connection failure 2. Outside cause No Operation (Power is ON) 3. Electrical Component defective Check Point 1 : Check indoor and outdoor installation condition p 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 154 Trouble shooting 54 Forecast of Cause : 1. Indoor Unit error 2. Outdoor Unit error 3. Effect by Surrounding environment No Cooling or No Heating 4. Connection Pipe / Connection Wire failure 5. Refrigeration cycle failure Check Point 1 : Check Indoor Unit p Does Indoor Unit FAN run on HIGH FAN? p Is Air Filter dirty? p Is Heat Exchanger clogged?

  • Page 155: Abnormal Noise

    Trouble shooting 55 Forecast of Cause : 1. Abnormal installation (Indoor/Outdoor) 2. Fan failure(Indoor/Outdoor) Abnormal Noise 3. EEV failure (Indoor) 4. 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) p Is Main Unit installed in stable condition?

  • Page 156: Trouble Shooting For Optional Parts

    6-3-5 Trouble Shooting for Optional Parts 1. External Switch Controller (UTR-YESA) Trouble shooting 57 Error Contents : Symptom : Power Supply Error No operation & LED does not light up. Condition : 1. No power supply. Voltage error between red and black terminals of External Switch Controller. (Normal voltage: 12V plus minus 10%) 2.
  • Page 157 Trouble shooting 59 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.
  • Page 158 2. Signal Amplifier (UTR-YRPC) Trouble shooting 61 Error Contents : Symptom : No display Power Supply Error Details : Condition of occurrence : Normal power is not supplied. 7 segment indicator is defective. Release condition : Normal power is supplied. 7 segment indicator is normal. Cause 1 : Power supply cable installation is defective or open.
  • Page 159 Trouble shooting 63 Symptom : Error Contents : Error display [ _1 ] Address Setting Error No operation. Details : Condition of occurrence : Address is not set at Signal Amplifier. Release condition : Address setting mode is started up, and desired address has been set up. Cause 1 : External noise Cause 2 : Address is not set at Signal Amplifier.
  • Page 160 Trouble shooting 66 Symptom : Error Contents : Error display [ D9 (Flashing or Lighting) ] Communication Error B No operation. Details : Condition of occurrence : Communication error between CPU and Network Driver IC (CH_B side). Network Driver IC is defective. Release condition : Communication is normal between CPU and Network Driver IC (CH_B side).
  • Page 161 3. Network Convertor (UTR-YRDA) 1. When connecting a group remote controller to a network convertor Trouble shooting 68 Symptom : Error Contents : Error Code display [ 05 ] PCB Error 1 All the control items do not operate. Details : Condition of occurrence : Synchronization of Network Device was not normally done.
  • Page 162 Trouble shooting 70 Error Contents : Symptom : Communication Error Error Code display [ 18 ] Control/Display from Group Remote is not available. with Group Remote Controller Details : Condition of occurrence : The communication between Group Remote and Network Convertor was not normally performed. Release condition : When the communication between Group Remote and Network Convertor resumes normal operation.

  • Page 163: Communication Error

    Trouble shooting 71 Error Contents : Symptom : Communication Error Error Code display [ 1F ] Control/Display from VRF system is not available. Other controls are left as they are. with VRF system Details : Condition of occurrence : The communication between VRF system and Network Convertor was not performed normally. When indefinite signal is input from VRF system.
  • Page 164 Trouble shooting 72 Symptom : Error Contents : Error Code display [ 21 ] Software Error All the control items do not operate. Details : Condition of occurrence : Micon program performed an abnormal control. Release condition : Micon has been reset, and the control of Network Convertor became normal. Cause 1 : External noise p Check continuation of error.
  • Page 165 3. Network Convertor (UTR-YRDA) 2. When connecting a single split type indoor unit to a network convertor Trouble shooting 73 Symptom : Error Contents : Error Code display [ 05 ] PCB Error 1 All the control items do not operate. Details : Condition of occurrence : Synchronization of Network Device was not normally done.
  • Page 166 Trouble shooting 75 Error Contents : Symptom : Communication Error Error Code display [ 18 ] Control/Display from Standard Remote is not available. Other controls are left as they are. with Standard Remote Controller Details : Condition of occurrence : The communication between Standard Remote and Network Convertor was not normally performed. Release condition : When the communication between Standard Remote and Network Convertor resumes normal operation.
  • Page 167 Trouble shooting 76 Error Contents : Symptom : Communication Error Error Code display [ 1C ] All the control items do not operate. with Indoor Unit Details : Condition of occurrence : The communication between Indoor unit and Network Convertor was not performed normally. Release condition : When the communication with Indoor unit is resumed normally.
  • Page 168 Trouble shooting 77 Error Contents : Symptom : Communication Error Error Code display [ 1F ] Control/Display from VRF system is not available. Other controls are left as they are. with VRF system Details : Condition of occurrence : The communication between VRF system and Network Convertor was not performed normally. When indefinite signal is input from VRF system.
  • Page 169 Trouble shooting 78 Symptom : Error Contents : Error Code display [ 21 ] Software Error All the control items do not operate. Details : Condition of occurrence : Micon program performed an abnormal control. Release condition : Micon has been reset, and the control of Network Convertor became normal. Cause 1 : External noise p Check continuation of error.
  • Page 170 4. Group Remote Controller (UTB-YDA / GDA) Trouble shooting 80 Symptom : Error Contents : Error Code display [ 03 ] PCB Error OPERATION LED is flashing. Details : Condition of occurrence : When EEPROM can not be written, or the control port does not operate. Release condition : Power is reset.

  • Page 171: Address Setting Error

    Trouble shooting 81 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 Convertor.
  • Page 172 Trouble shooting 83 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. 3.
  • Page 173 5. PC Controller (UTR-YOTB) / Service Tool (UTR-YSTC) / Web Monitoring Tool (UTR-YMSA) (Referred to as "Service Tool" hereafter) Trouble shooting 85 Symptom : Error Contents : 1 or more units (but not all) are not detected after Scan. Unit not Detected 1 or more units (but not all) are not listed in the system list after Scan.

  • Page 174: Service Information

    6-4 SERVICE INFORMATION SERVICE INFORMATION Backup operation Details : Backup operation is the operating method of replacing compressor while the system is running. Compressor can be replaced without stopping the system. But the backup operation may not be able to continue if total capacity of indoor units in operation is less than 60000BTU.
  • Page 175 1-2. Backup operation when compressor of the slave unit 1 is defective. [Procedure] (Example: Three outdoor units are connected.) 1. Stop the operation, and turn off the power of all outdoor units. 2. Fully close the 3-way valve (Liquid, Gas, and Oil) of the slave unit 1. 3.

  • Page 176: Heating Backup Operation

    6-4-2 Heating backup operation 1. Method of backup operation 1-1. Backup operation when compressor of the master unit is defective. [Procedure] (Example: Three outdoor units are connected.) 1. Stop the operation, and turn off the power of all outdoor units. 2.
  • Page 177 1-2. Backup operation when compressor of the slave unit 1 is defective. [Procedure] (Example: Three outdoor units are connected.) 1. Stop the operation, and turn off the power of all outdoor units. 2. Fully close the 3-way valve (Liquid, Gas, and Oil) of the slave unit 1. 3.

  • Page 178: Work Procedure After The Backup Operation

    6-4-3 Work procedure after the backup operation 1. Refrigerant shortage at the backup operation When excessive refrigerant accumulates in the defective outdoor unit during the backup operation, it becomes refrigerant shortage operation. Method of judging refrigerant shortage from Service tool (or Web monitoring tool) is as follows. The meaning of the sign TH4, 5, 6, 7, 11, 12 : Outdoor unit thermistor SV3 : Solenoid valve for liquid level detection...

  • Page 179: Service Parts Information

    6-5 SERVICE PARTS INFORMATION SERVICE PARTS INFORMATION 1 Compressor Diagnosis method of Compressor (If Outdoor Unit LED displays Error, refer to Trouble shooting 13 to 48) Abnormal noise Does not start up Stops soon after starting up Check power supply Check power supply voltage,open Is any Indoor Unit in operation? voltage,open fuse.
  • Page 180 SERVICE PARTS INFORMATION 2 Constant Speed Compressor Check Point 1 : Check Connection p Check terminal connection of Compressor (loose or incorrect wiring) p Check connection of magnet relay (Loose or incorrect wiring) Terminal cover opened (RED) terminal BLACK WHITE (WHITE) Magnetic relay (BLACK)
  • Page 181 SERVICE PARTS INFORMATION 3 Inverter Compressor Check Point 1 : Check Connection p Check terminal connection of Compressor (loose or incorrect wiring) p Check connection of Inverter PCB (Loose or incorrect wiring) Terminal cover opened (RED) TB-V INVERTER PWB TB-U TB-W (WHITE) (BLACK)
  • Page 182 Check Voltage at Filter PCB SERVICE PARTS INFORMATION 4 (1) Is Voltage from terminal normal? Inverter PCB >> If AC380V does not appear between Noise Filter PCB each terminal of LI1,LI2,LI3, check if terminal connection is loose. (2) Is Voltage to Inverter PCB appearing at the connector? Diagnose Inverter PCB and Filter PCB >>...
  • Page 183 SERVICE PARTS INFORMATION 5 Indoor Unit Electronic Expansion Valve (EEV) Check Point 1 : Check Connections Check Connectors (Loose connector or open cable of CN14 for Duct type.) Duct Check Point 2 : Check Coil of EEV Check Point 3 : Check Noise at start up Remove connector, check each winding resistance of Coil.
  • Page 184 SERVICE PARTS INFORMATION 6 Outdoor Unit Electronic Expansion Valve (EEV1) Check Point 1 : Check Connections p Check connection of connector (CN29) (Loose connector or open cable) Check Point 2 : Check Coil of EEV1 Check Point 3 : Check Noise at start up p Remove connector, check each winding resistance of Coil.
  • Page 185 SERVICE PARTS INFORMATION 7 Outdoor Unit Electronic Expansion Valve (EEV2) Check Point 1 : Check Connections p Check connection of connector (CN30) (Loose connector or open cable) Check Point 2 : Check Coil of EEV2 Check Point 3 : Check Noise at start up p Remove connector, check each winding resistance of Coil.

  • Page 186: Protection Function

    SERVICE PARTS INFORMATION 8 Outdoor Unit Solenoid Valve (SV1,SV2,SV3,SV6,SV7, SV8 ,SV8-2,SV8 -3) Check Point 1 : Check connections Check Point 2 : Check Solenoid Coil p Check connection of connector. (Loose connector or open cable) p Remove connector and check if coil is open. (Normal resistance value of each coil: 1495 ±...

  • Page 187: Normal Operation

    SERVICE PARTS INFORMATION 9 Outdoor Unit Solenoid Valve (SV4,SV5) Check Point 1 : Check connections Check Point 2 : Check Solenoid Coil p Check connection of connector. (Loose connector or open cable) p Remove connector and check if coil is open. >>Normal resistance value of each coil: 1324 ±...
  • Page 188 SEVICE SEVICE PARTS PARTS INFORMATION 12 INFORMATION 10 4WAY VALVE 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 14 of coil Resistance Value 1.6K If it is Open or abnormal resistance value, replace...
  • Page 189 SERVICE PARTS INFORMATION 11 Indoor Unit Fan Motor Check Point : ABYA12 / 14LATF p Check each winding resistance of the motor If Resistance value is abnormal, replace motor. Read Wire Resistance value(20 ° C) Low(Blue) White - Red 252 ± 8% Med(Violet) - Black 337 ±...
  • Page 190 Check Point : ABYA30 / 36 / 45 / 54LATF p Check each winding resistance of the motor If Resistance value is abnormal, replace motor. Read Wire Resistance value(20°C) Thermal protector 22.8 ± 10% 120°C 31.9 ± 10% (AC) Check Point : AUXB07 / 09LATF p Check each winding resistance of the motor If Resistance value is abnormal, replace motor.
  • Page 191 Check Point : AUXB18LATF p Check each winding resistance of the motor If Resistance value is abnormal, replace motor. Read Wire Resistance value(20 ° C) Low(Blue) White - Red 446 ± 8% Med(Violet) - Black 552 ± 8% Thermal protector Hi(Red) - Violet 117 ±...
  • Page 192 Check Point : ARXB07 / 09LALF p Check each winding resistance of the motor If Resistance value is abnormal, replace motor. Read Wire Resistance value(20°C) White - Red 86.7 ± 8% - Black 57.7 ± 8% - Pink 15.7 ± 8% Pink - Violet 15.7 ±...
  • Page 193 Check Point : ARXB25 / 30LATF p Check each winding resistance of the motor If Resistance value is abnormal, replace motor. Read Wire Resistance value(20 ° C) Super low(Blue) Low(Violet) White - Red 44.8 ± 8% Med(Pink) - Black 37.3 ± 8% Thermal protector Hi(Red) - Pink...
  • Page 194 Check Point : ARXA36 / 45LATF p Check each winding resistance of the motor If Resistance value is abnormal, replace motor. Read Wire Resistance value(20°C) Super low(Blue) Low(Violet) White - Red 19.7 ± 8% Med(Pink) - Black 13.0 ± 8% Thermal protector Hi(Red) - Pink...
  • Page 195 Check Point : ARXC90LATF p Check each winding resistance of the motor If Resistance value is abnormal, replace motor. Read Wire Resistance value(20 ° C) 26.1 ± 8% U(Red) V(White) 26.1 ± 8% V(White) W(Black) 26.1 ± 8% W(Black) U(Red) Check Point : ASYA18 / 24 / 30LATF p Check each winding resistance of the motor If Resistance value is abnormal, replace motor.
  • Page 196 SERVICE PARTS INFORMATION 12 Outdoor Unit Fan Motor Check Point : AJ*126L / AJ*126U Check each winding resistance of the motor If Resistance value is abnormal, replace motor. BLUE Read Wire Resistance value 82.0 Blue - Red WHITE Red - White 38.5 YELLOW 22.0...
  • Page 197 SERVICE PARTS INFORMATION 13 Resistor, Cement Check Point 1 : Appearance check No fissures, breaks, damage, etc. at the body and terminals section? Check Point 2 : Electric check 1. Surge prevention resistor (connected to power relay) Set the tester to the "Resistance" mode, and measure the resistance value between the terminals. (No polarity) Judge the result of as follows:...
  • Page 198 SERVICE PARTS INFORMATION 15 Diode Bridge (Mounted on Transistor PCB) Check Point 1 : Appearance check No fissures, breaks, damage, etc. at body and terminal section? Is the rear of the body coated with silicone grease? Are there no abnormalities at threaded parts (stripped threads, deformation, damage, etc.) ? Check Point 2 : Electric check In the 3-phase diode bridge single part state, set the tester to the "Resistance"...
  • Page 199 7 . APPENDING DATA (UNIT)

  • Page 200: Refrigerant Pipe System Diagram

    7. APPENDING 7-1 REFRIGERANT PIPE SYSTEM DIAGRAM MODELS : AJ A72LBTF , A90LBTF , A72UBTF , AJ A90UBTF Indoor unit1 TH21 FAN21 EEV21 TH22 LIQUID LINE HEX21 TH23 GAS LINE Indoor unit2 TH21 FAN21 EEV21 TH22 : Check valve HEX21 : Capillary TH23 : Strainer...
  • Page 201 A72UBTF , AJ A90UBTF MODELS : AJ A90LBTF , A72LBTF , MARK DESCRIPTION CMP 1 Compressor 1(Master: Inverter type / Slave: Constant speed type) CMP 2 Compressor 2(Constant speed type) Heat exchanger FAN 1 Fan 1 FAN 2 Fan 2 Accumulator Receiver tanker Oil separator...
  • Page 202 MODELS : AJ 126LBTF , AJ 126UBTF Indoor unit1 TH21 FAN21 EEV21 TH22 LIQUID LINE HEX21 TH23 GAS LINE Indoor unit2 TH21 FAN21 EEV21 TH22 : Check valve HEX21 : Capillary TH23 : Strainer : 3-way valve : Service port : Pressure regulation valve Master unit AJ 126L...
  • Page 203 MODELS : AJ 126LBTF , AJ 126UBTF MARK DESCRIPTION CMP 1 Compressor 1(Master: Inverter type / Slave: Constant speed type) CMP 2 Compressor 2(Constant speed type) CMP 3 Compressor 3(Constant speed type) Heat exchanger FAN 1 Fan 1 FAN 2 Fan 2 Accumulator Receiver tanker...

  • Page 204: Characteristics Of Sensors

    7-2 CHARACTERISTICS OF SENSORS 7-2-1 Pressure Sensor 1. Characteristics of pressure sensor Pressure Output voltage of the pressure sensors ( HP,LP ) Pressure 0.30 0.60 0.80 0.90 1.00 1.20 0.00 0.10 0.20 0.40 0.50 0.70 1.40 (MPa) Output 1.00 1.08 1.16 1.24 1.32...
  • Page 205 Thermistor resistance values (1) Heat exchanger thermistor ( TH4 ) RCV liquid surface detecting thermistor ( TH5 , TH6 , TH7 ) Sub-cool heat exchanger thermistor ( TH8, TH13 ) Liquid temperature thermistor ( TH9 , TH10 ) Suction temperature thermistor (TH11 ) Pipe tempera- -7.5...
  • Page 206 Thermistor resistance values (1) Room temperature thermistor ( TH21 ) 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 42.5 47.5...

  • Page 207: Wiring Diagram

    7-3 WIRING DIAGRAM 7-3-1 Indoor Unit COMPACT CASSETTE TYPE 07-08...
  • Page 208 07-09...
  • Page 209 07-10...
  • Page 210 COMPACT DUCT TYPE 07-11...
  • Page 211 LOW STATIC PRESSURE DUCT TYPE 07-12...

  • Page 212: Duct Type

    DUCT TYPE 07-13...
  • Page 213 HIGH STATIC PRESSURE DUCT TYPE 07-14...
  • Page 214 07-15...
  • Page 215 FLOOR / CEILING TYPE 07-16...
  • Page 216 CEILING TYPE 07-17...
  • Page 217 COMPACT WALL MOUNTED TYPE (Comfort model) 07-18...
  • Page 218 WALL MOUNTED TYPE 07-19...
  • Page 219 CEILING WALL TYPE 07-20...
  • Page 220 7-3-2 Outdoor Unit MODELS : AJ A72LBTF, AJ A90LBTF 07-21...
  • Page 221 MODEL : AJ 126LBTF 07-22...
  • Page 222 MODELS : AJ A72UBTF , AJ A90UBTF 07-23...
  • Page 223 MODEL : AJ 126UBTF 07-24...

  • Page 224: Outdoor Internal Layout

    7-4 OUTDOOR INTERNAL LAYOUT OUTDOOR UNIT INTERNAL LAYOUT PROPELLER FAN FAN MOTOR ASSY-OUTER CONTROL BOX(INVERTER) ( For AJ*126LBTF/ AJ*A90LBTF AJ*A72LBTF ) CONDENSER CHECK JOINT 3WAY VALVE (GAS) COMPRESSOR COMPRESSOR CONTROL BOX 3WAY VALVE (OIL) 3WAY VALVE FRONT VIEW (LIQUID) 07-25...
  • Page 225 AJ*126LBTF EEV2 EEV1 ACCUMULATOR RECIEVER TANK OIL SEPARATOR AJ*126UBTF EEV1 EEV2 ACCUMULATOR RECIEVER TANK OIL SEPARATOR AJ*A90LBTF , AJ*A72LBTF EEV1 EEV2 ACCUMULATOR RECIEVER TANK OIL SEPARATOR AJ*A90UBTF , AJ*A72UBTF EEV1 EEV2 ACCUMULATOR RECIEVER TANK OIL SEPARATOR REAR VIEW 07-26...
  • Page 226 AJ*126LBTF COMPRESSOR 1 SV8-3 SV8-2 COMPRESSOR 3 COMPRESSOR 2 AJ*126UBTF COMPRESSOR 1 SV8-3 SV8-2 COMPRESSOR 3 COMPRESSOR 2 AJ*A90LBTF , AJ*A72LBTF COMPRESSOR 1 SV8-2 COMPRESSOR 2 AJ*A90UBTF , AJ*A72UBTF SV8-2 COMPRESSOR 2 COMPRESSOR 1 DIAGRAMMATIC PERSPECTIVE VIEW 07-27...
  • Page 227 CONTROL BOX( INVERTER ) LAYOUT ( For AJ*126LBTF/ AJ*A90LBTF/ AJ*A72LBTF ) REACTOR ASSY RESISTOR,CEMENT RESISTOR,CEMENT INVERTER PCB ASSY CAPACITOR(INVERTER) FILTER PCB ASSY FUSE CONTROL BOX LAYOUT ( For AJ*126LATF ) COMMUNICATION PWB CAPACITOR ( FAN MOTOR ) MAGNETIC RELAY ( For COMPRESSOR 3) CONTROLLER PCB ASSY MAGNETIC RELAY ( For COMPRESSOR 2)
  • Page 228 CONTROL BOX LAYOUT ( For AJ*126UBTF ) COMMUNICATION PWB CAPACITOR ( FAN MOTOR ) MAGNETIC RELAY ( For COMPRESSOR 3) CONTROLLER PCB ASSY MAGNETIC RELAY ( For COMPRESSOR 2) MAGNETIC RELAY ( For COMPRESSOR 1) SW10 LED4 LED1 SW9 SW8 LED2 LED5 LED3...

  • Page 229: Model Designation

    F : V SERIES AJ : OUTDOOR UNIT G : GENERAL L : MASTER A : (2006.11 ~ 2008.8) (INVERTER) Y : FUJITSU 126 : (40.0) (R410A) B : (2008.9 ~ ) A90 : (28.0) A72 : (22.4) U : SLAVE...
  • Page 230 8. DISASSEMBLY ILLUSTRATION & PARTS LIST...
  • Page 231 8. DISASSEMBLY ILLUSTRATION & PARTS LIST 8-1 OUTDOOR UNIT Model : AJ*126LBTF Manual (Specifications) Manual (Installation) Declaration of Conformity 08-01...
  • Page 232 Model : AJ*126LBTF 08-02...
  • Page 233 Model : AJ*126LBTF 08-03...
  • Page 234 Model : AJ*126LBTF 320 322 416 415 414 336 337 419 418 417 304 300 08-04...
  • Page 235 AJ*126LBTF AJ*126LBTF FAN COVER 9377941015 100 CONTROL BOX 9373932017 BELL MOUTH 9361721005 101 CONTROLLER PCB ASSY 9705653023 EMBLEM (FUJITSU) 9371388014 102 COMMUNICATION PCB 9704424044 SIDE PANEL- L ASSY 9362940023 103 PWB UNIT (CT) 9705702011 SIDE PANEL- R ASSY 9362941037 104 CAPACITOR (FAN MOTOR)
  • Page 236 Model : AJ*126LBTF Part No. Part No. Description Description AJ*126LBTF AJ*126LBTF 200 COMPRESSOR ASSY (INVERTER) 9374248018 310 BYPASS A ASSY 9374957019 201 COMPRESSOR ASSY 9374250011 311 SOLENOID VALVE SV1,2 9970038013 202 BELT HEATER C 240V 25W 9361140073 312 SOLENOID VALVE SV3,5 9970040016 203 BELT HEATER B 240V 35W 9361140196...
  • Page 237 Model : AJ*126UBTF Manual (Specifications) Manual (Installation) Declaration of Conformity 08-07...
  • Page 238 Model : AJ*126UBTF 08-08...
  • Page 239 Model : AJ*126UBTF 320 322 416 415 336 337 419 418 417 304 302 285 288 289 08-09...
  • Page 240 Part No. AJ*126UBTF AJ*126UBTF FAN COVER 9377941015 CONTROL BOX 9373932017 BELL MOUTH 9361721005 CONTROLLER PCB ASSY 9705653023 EMBLEM (FUJITSU) 9371388014 COMMUNICATION PCB 9704424044 SIDE PANEL- L ASSY 9362940023 CAPACITOR (FAN MOTOR) 9900269180 SIDE PANEL- R ASSY 9362941037 MAGNETIC RELAY 9900116019...
  • Page 241 Model : AJ*126UBTF Description Part No. Description Part No. AJ*126UBTF AJ*126UBTF 201 COMPRESSOR ASSY 9374250011 310 BYPASS A ASSY 9374957019 202 BELT HEATER A 240V 35W 9361140189 311 SOLENOID VALVE SV1,2 9970038013 312 SOLENOID VALVE SV3,5 9970040016 203 BELT HEATER B 240V 35W 9361140196 313 CHECK VALVE 9312268009...
  • Page 242 Model : AJ*A90LBTF AJ*A72LBTF Manual (Specifications) Manual (Installation) Declaration of Conformity 08-12...
  • Page 243 Model : AJ*A90LBTF AJ*A72LBTF 08-13...
  • Page 244 Model : AJ*A90LBTF AJ*A72LBTF 08-14...
  • Page 245 Model : AJ*A90LBTF 320 322 416 415 414 AJ*A72LBTF 336 337 418 417 304 300 08-15...
  • Page 246 AJ*A72LBTF AJ*A72LBTF FAN COVER 9377941015 100 CONTROL BOX 9373932017 BELL MOUTH 9361721005 101 CONTROLLER PCB ASSY 9705653023 EMBLEM (FUJITSU) 9371388014 102 COMMUNICATION PCB 9704424044 SIDE PANEL- L ASSY 9362940023 103 PWB UNIT (CT) 9705702011 SIDE PANEL- R ASSY 9362941037 104 CAPACITOR (FAN MOTOR)
  • Page 247 Model : AJ*A90LBTF AJ*A72LBTF Part No. Part No. Description Description AJ*A90LBTF AJ*A90LBTF AJ*A72LBTF AJ*A72LBTF 200 COMPRESSOR ASSY (INVERTER) 9374248018 310 BYPASS A ASSY 9374957019 201 COMPRESSOR ASSY 9374250011 311 SOLENOID VALVE SV1,2 9970038013 202 BELT HEATER C 240V 25W 9361140073 312 SOLENOID VALVE SV3,5 9970040016 204 BELT HEATER C 240V 35W...
  • Page 248 Model : AJ*A90UBTF AJ*A72UBTF Manual (Specifications) Manual (Installation) Declaration of Conformity 08-18...
  • Page 249 Model : AJ*A90UBTF AJ*A72UBTF 08-19...
  • Page 250 Model : AJ*A90UBTF 320 322 416 415 AJ*A72UBTF 336 337 418 417 304 302 285 288 289 08-20...
  • Page 251 FAN COVER 9377941015 9377941015 CONTROL BOX 9373932017 9373932017 BELL MOUTH 9361721005 9361721005 CONTROLLER PCB ASSY 9705653023 9705653023 EMBLEM (FUJITSU) 9371388014 9371388014 COMMUNICATION PCB 9704424044 9704424044 SIDE PANEL- L ASSY 9362940023 9362940023 CAPACITOR (FAN MOTOR) 9900269180 9900269180 SIDE PANEL- R ASSY...
  • Page 252 Model : AJ*A90UBTF AJ*A72UBTF Description Part No. Description Part No. AJ*A90UBTF AJ*A72UBTF No. AJ*A90UBTF AJ*A72UBTF 201 COMPRESSOR ASSY 9374250011 9374251018 310 BYPASS A ASSY 9374957019 9374957019 203 BELT HEATER B 240V 35W 9361140196 9361140196 311 SOLENOID VALVE SV1,2 9970038013 9970038013 312 SOLENOID VALVE SV3,5 9970040016 9970040016...
  • Page 253 8-2 INDOOR UNIT MODELS : AUXB07, AUXB09, AUXB12 AUXB14, AUXB18 Parts No. Description Q'ty AUXB07 AUXB09 AUXB12 AUXB14 AUXB18 1 TOP COVER PLATE 9359642015 9359642015 9359642015 9359642015 9359642015 2 CABINET A ASSY 9359643005 9359643005 9359643005 9359643005 9359643005 3 CABINET B 9359645009 9359645009 9359645009...
  • Page 254 MODELS : AUXB07, AUXB09, AUXB12 AUXB14, AUXB18 61 63 64 65 66 67 60 69 70 Parts No. Description Q'ty AUXB07 AUXB09 AUXB12 AUXB14 AUXB18 INSULATION (INSIDE BOX) SUB ASSY 9370761016 9370761016 9370761016 9370761016 9370761016 EVAPORATOR ASSY 9375640019 9375640019 9375640019 9375640019 9375640019 DISTRIBUTOR ASSY...
  • Page 255 MODELS : AUXB07, AUXB09, AUXB12 AUXB14, AUXB18 Parts No. Description Q'ty AUXB07 AUXB09 AUXB12 AUXB14 AUXB18 DRAIN PAN SUB ASSY 9370122015 9370122015 9370122015 9370122015 9370122015 CONTROL BOX COVER 9370084009 9370084009 9370084009 9370084009 9370084009 COVER 9370085006 9370085006 9370085006 9370085006 9370085006 WIRE COVER 9377818010 9377818010 9377818010...
  • Page 256 MODELS : AUXB07, AUXB09, AUXB12 AUXB14, AUXB18 Parts No. Description Q'ty AUXB07 AUXB09 AUXB12 AUXB14 AUXB18 100 CONTROLLER PCB ASSY 9707514018 9707514018 9707514018 9707514018 9707514018 101 COMMUNICATION PCB 9704424044 9704424044 9704424044 9704424044 9704424044 102 FILTER PCB ASSY 9704799074 9704799074 9704799074 9704799074 9704799074 103 CAPACITOR...
  • Page 257 MODELS : UTG-UD*D-W Parts No. Parts No. Description Q'ty Description Q'ty UTG-UD*D-W UTG-UD*D-W 1 MOTOR COVER 9359623014 11 INDICATOR PCB ASSY 9705891012 2 MOTOR GEAR 9359629009 12 DECORATION PLATE-A 9360039019 13 PANEL 9359619017 3 STEP MOTOR 9900362027 4 CAM GEAR 9359628002 20 INTAKE GRILLE 9370126006...
  • Page 258 MODELS : AU*A20, AU*A25, AU*A30 Parts No. Description Q'ty AU*A20 AU*A25 AU*A30 1 TOP COVER PLATE ASSY 9362806022 9362806022 9362806022 2 CABINET A ASSY 9362807012 9362807012 9362807012 3 CABINET B ASSY 9362808019 9362808019 9362808019 4 CABINET C 9362791007 9362791007 9362791007 5 CABINET D 9362792004 9362792004...
  • Page 259 MODELS : AU*A20, AU*A25, AU*A30 36 39 40 41 Parts No. Description Q'ty AU*A20 AU*A25 AU*A30 30 EVAPORATOR SUB ASSY 9362817295 9362817295 9362817295 31 EVA HOLDER ASSY 9362802024 9362802024 9362802024 32 REINFORCEMENT (EVA)-A 9362749008 9362749008 9362749008 33 REINFORCEMENT (EVA)-B 9362750004 9362750004 9362750004 34 WIND GUIDE BOARD...
  • Page 260 MODELS : AU*A20, AU*A25, AU*A30 Parts No. Description Q'ty AU*A20 AU*A25 AU*A30 70 LOUVER SUPPORT HOLDER 9362799003 9362799003 9362799003 71 LOUVER SUPPORTER 9362770019 9362770019 9362770019 72 JOINT SHAFT 9362771009 9362771009 9362771009 73 JOINT-A 9362773003 9362773003 9362773003 74 JOINT GEAR 9362772006 9362772006 9362772006 75 PANEL FRAME HOLDER...
  • Page 261 MODELS : AU*A20, AU*A25, AU*A30 Parts No. Description Q'ty AU*A20 AU*A25 AU*A30 90 FILTER 9362766005 9362766005 9362766005 91 INSULATION (GRILLE)A 9362780001 9362780001 9362780001 92 INSULATION (GRILLE)B 9362781008 9362781008 9362781008 93 GRILLE HOOK HOLDER 9362782005 9362782005 9362782005 94 RFM (GRILLE)A 9362738002 9362738002 9362738002 95 RFM (GRILLE)B...
  • Page 262 MODELS : AU*A20, AU*A25, AU*A30 Parts No. Description Q'ty AU*A20 AU*A25 AU*A30 200 CONTROLLER PCB ASSY 9707514025 9707514025 9707514025 201 COMMUNICATION PCB 9704424044 9704424044 9704424044 202 FILTER PCB ASSY 9704799081 9704799081 9704799081 203 CAPACITOR 9900270216 9900270216 9900270216 204 TERMINAL 4P 9306488093 9306488093 9306488093...
  • Page 263 MODELS : AU*A36, AU*A45, AU*A54 Parts No. Description Q'ty AU*A36 AU*A45 AU*A54 1 TOP COVER PLATE ASSY 9362806015 9362806015 9362806015 2 CABINET A ASSY 9362800013 9362800013 9362800013 3 CABINET B ASSY 9362801010 9362801010 9362801010 4 CABINET C 9362733007 9362733007 9362733007 5 CABINET D 9362734004 9362734004...
  • Page 264 MODELS : AU*A36, AU*A45, AU*A54 Parts No. Description Q'ty AU*A36 AU*A45 AU*A54 30 EVAPORATOR SUB ASSY 9362817301 9362817325 9362817325 31 EVA HOLDER ASSY 9362802017 9362802017 9362802017 32 REINFORCEMENT (EVA)-A 9362749008 9362749008 9362749008 33 REINFORCEMENT (EVA)-B 9362750004 9362750004 9362750004 34 WIND GUIDE BOARD 9373444015 9373444015 9373444015...
  • Page 265 MODELS : AU*A36, AU*A45, AU*A54 Parts No. Description Q'ty AU*A36 AU*A45 AU*A54 70 LOUVER SUPPORT HOLDER 9362799003 9362799003 9362799003 71 LOUVER SUPPORTER 9362770019 9362770019 9362770019 72 JOINT SHAFT 9362771009 9362771009 9362771009 73 JOINT-A 9362773003 9362773003 9362773003 74 JOINT GEAR 9362772006 9362772006 9362772006 75 PANEL FRAME HOLDER...
  • Page 266 MODELS : AU*A36, AU*A45, AU*A54 Parts No. Description Q'ty AU*A36 AU*A45 AU*A54 90 FILTER 9362766005 9362766005 9362766005 91 INSULATION (GRILLE)A 9362780001 9362780001 9362780001 92 INSULATION (GRILLE)B 9362781008 9362781008 9362781008 93 GRILLE HOOK HOLDER 9362782005 9362782005 9362782005 94 RFM (GRILLE)A 9362738002 9362738002 9362738002 95 RFM (GRILLE)B...
  • Page 267 MODELS : AU*A36, AU*A45, AU*A54 Parts No. Description Q'ty AU*A36 AU*A45 AU*A54 200 CONTROLLER PCB ASSY 9707514032 9707514032 9707514032 201 COMMUNICATION PCB 9704424044 9704424044 9704424044 202 FILTER PCB ASSY 9704799081 9704799081 9704799081 203 CAPACITOR 9900270162 9900270162 9900270162 204 TERMINAL 4P 9306488093 9306488093 9306488093...
  • Page 268 MODELS : ARXB07, ARXB09 Parts No. Description Q'ty ARXB07 ARXB09 1 SIDE PANEL RIGHT SUB ASSY 9364505015 9364505015 2 SIDE PANEL LEFT SUB ASSY 9364506012 9364506012 3 FRONT PANEL SUB ASSY 9364508016 9364508016 4 PIPING COVER SUB ASSY 9364501031 9364501031 5 CABINET COVER SUB ASSY 9364503011 9364503011...
  • Page 269 MODELS : ARXB07, ARXB09 Parts No. Description Q'ty ARXB07 ARXB09 18 TOP PANEL SUB ASSY 9364507019 9364507019 19 PANEL ASSY (MOTOR) 9363193008 9363193008 20 CASING ASSY 9363322002 9363322002 21 BRACKET (MOTOR) ASSY 9358591000 9358591000 22 SIROCCO FAN ASSY 9385258006 9385258006 23 RUBBER (VIBRATION PROOF) 9385102002 9385102002...
  • Page 270 MODELS : ARXB12, ARXB14 ARXB18 Parts No. Description Q'ty ARXB12 ARXB14 ARXB18 1 SIDE PANEL RIGHT SUB ASSY 9364505022 9364505022 9364505022 2 SIDE PANEL LEFT SUB ASSY 9364506029 9364506029 9364506029 3 FRONT PANEL SUB ASSY 9364508023 9364508023 9364508023 4 PIPING COVER SUB ASSY 9364501031 9364501031 9364501031...
  • Page 271 MODELS : ARXB12, ARXB14 ARXB18 Parts No. Description Q'ty ARXB12 ARXB14 ARXB18 18 TOP PANEL SUB ASSY 9364507026 9364507026 9364507026 19 PANEL ASSY (MOTOR) 9363401004 9363401004 9363401004 20 CASING ASSY 9363322002 9363322002 9363322002 21 BRACKET (MOTOR) ASSY 9358591000 9358591000 9358591000 22 SIROCCO FAN ASSY 9385258006 9385258006...
  • Page 272 MODELS : ARXB07, ARXB09, ARXB12 ARXB14, ARXB18 Parts No. Description Q'ty ARXB07 ARXB09 ARXB12 ARXB14 ARXB18 100 CONTROL BOX COVER 9363201000 9363201000 9363201000 9363201000 9363201000 101 CONTROL BOX 9375240028 9375240028 9375240028 9375240028 9375240028 102 ONE-TOUCH BUSH 9374407019 9374407019 9374407019 9374407019 9374407019 103 CLAMP NK-4N 313714328805...
  • Page 273 MODELS : ARXB25, ARXB30, ARXB36, ARXB45 ARXA25, ARXA30, ARXA36, ARXA45 13-1 Parts No. Description Q'ty ARXB25 ARXB30 ARXB36 ARXB45 ARXA25 ARXA30 ARXA36 ARXA45 1 BRACKET (PIPE) SUB ASSY 9374514014 9374514014 9374514014 9374514014 9374514014 9374514014 9374514014 9374514014 2 CABINET R SUB ASSY 9374508013 9374508013 9374508013...
  • Page 274 MODELS : ARXB25, ARXB30, ARXB36, ARXB45 ARXA25, ARXA30, ARXA36, ARXA45 Parts No. Description Q'ty ARXB25 ARXB30 ARXB36 ARXB45 ARXA25 ARXA30 ARXA36 ARXA45 17 BASE SUB ASSY 9374504015 9374504015 9374504015 9374504015 9374504015 9374504015 9374504015 9374504015 18 BRACKET (EVA) R 9374207015 9374207015 9374207015 9374207015 9374207015...
  • Page 275 MODELS : ARXB25, ARXB30, ARXB36, ARXB45 ARXA25, ARXA30, ARXA36, ARXA45 Parts No. Description Q'ty ARXB25 ARXB30 ARXB36 ARXB45 ARXA25 ARXA30 ARXA36 ARXA45 100 CONTROL COVER B 9374222018 9374222018 9374222018 9374222018 9374222018 9374222018 9374222018 9374222018 101 CONTROL COVER A SUB ASSY 9374516018 9374516018 9374516018...
  • Page 276 MODELS : ARXC36, ARXC45 ARXC60 Parts No. Description Q'ty ARXC36 ARXC45 ARXC60 1 PLATE TOP SA 9372576014 9372576014 9372576014 2 KIT(PANEL LEFT SA) 9372581018 9372581018 9372581018 3 PANEL RUGHT SA 9372580011 9372580011 9372580011 4 KIT(PANEL MAINTE SA) 9372583012 9372583012 9372583012 5 DRAIN PAN SA 9372579015 9372579015...
  • Page 277 MODELS : ARXC45, ARXC60 MODELS : ARXC36 Parts No. Description Q'ty ARXC36 ARXC45 ARXC60 7 CASING A 9372057018 9372057018 9372057018 8 CASING B 9372058015 9372058015 9372058015 9 SIROCCO FAN 9372059012 9372059012 9372059012 10 MOTOR INDUCTION 9601689027 9601688013 9601688013 11 BRACKET MTR B 9372039007 9372039007 12 BRACKET(MOTOR)
  • Page 278 MODELS : ARXC36, ARXC45 ARXC60 Parts No. Description Q'ty ARXC36 ARXC45 ARXC60 EVAPORATOR TOTAL ASSY 9372584088 9372584088 9372584095 - EVAPORATOR ASSY 9373875017 9373875017 9372585030 21 DISTRIBUTOR ASSY 9373873167 9373873167 9371325286 22 COUPLING PIPE ASSY 9373873174 9373873174 9373038337 23 THERMISTOR (PIPE-MID) 9703297014 9703297014 9703297014...
  • Page 279 MODELS : ARXC36, ARXC45 ARXC60 Parts No. Description Q'ty ARXC36 ARXC45 ARXC60 100 CONTROL BOX AS 9374854028 9374854028 9374854028 101 ONE-TOUCH BUSH 9364788005 9364788005 9364788005 102 ONE-TOUCH BUSH 9374407019 9374407019 9374407019 103 CLAMP(CORD) C 9359677000 9359677000 9359677000 104 CLAMP(CORD) 9356857009 9356857009 9356857009 105 TERMINAL 5P...
  • Page 280 MODELS : ARXC90 Parts No. Description Q'ty ARXC90 1 TOP PLATE SA 9364679013 2 LEFT PANEL SA 9364687018 3 SIDE PANEL L SA 9364685014 4 RIGHT PANEL SA 9364686011 5 SIDE PANEL R SA 9364684017 6 BEAM SA 9364683010 7 HOOK METAL 9364669007 8 KIT(PANEL FRONT SA) 9371359014...
  • Page 281 MODELS : ARXC90 Parts No. Description Q'ty ARXC90 11 KIT(CASING AS) 9371381015 12 KIT(BELL MOUTH SA) 9371382012 13 SIROCCO FAN L 9364665047 14 SIROCCO FAN R 9364665030 15 MOTOR INDUCTION 9601004004 16 PLATE MOTOR ASSY 9364632001 17 BRACKET(MOTOR) ASSY 9364630007 18 PANEL FAN ASSY 9364628004 08-51...
  • Page 282 MODELS : ARXC90 Parts No. Description Q'ty ARXC90 EVAPORATOR TOTAL ASSY 9365149058 - EVAPORATOR ASSY 9370825022 20 DISTRIBUTOR ASSY 9371325293 21 COUPLING PIPE ASSY 9373038344 22 HOOK METAL 9364669007 23 KIT (REAR PANEL SA) 9371383026 24 BRACKET (THERMOSTAT) 9367369010 25 MENTE PANEL SA 9364691015 26 THERMISTOR(ROOM) 9703299056...
  • Page 283 MODELS : ARXC90 Parts No. Description Q'ty ARXC90 100 CONTROL BOX 9375022013 101 PLATE(BOX) A 9375023027 102 PLATE(BOX) B 9375023034 103 CONTROL BOX COVER 9365186008 104 ONE-TOUCH BUSH 9374407019 105 CLAMP(CORD) B 9356858006 106 CLAMP(CORD) 9356857009 TERMINAL 3P 9363276046 108 TERMINAL 5P 9703874017 109 TERMINAL 2P 9703873027...
  • Page 284 MODELS : AB*A12, AB*A14 AB*A18, AB*A24 Parts No. Description Q'ty AB*A12 AB*A14 AB*A18 AB*A24 1 TOP COVER 9358534014 9358534014 9358534014 9358534014 2 COSMETIC PANEL L 9358536018 9358536018 9358536018 9358536018 3 HANGER L 9358596005 9358596005 9358596005 9358596005 4 BOLT 0700190018 0700190018 0700190018 0700190018 5 ARM...
  • Page 285 MODELS : AB*A12, AB*A14 AB*A18, AB*A24 Parts No. Description Q'ty AB*A12 AB*A14 AB*A18 AB*A24 8 WIRE (DRAIN PAN) 9358598009 9358598009 9358598009 9358598009 9 DRAIN PAN SUB ASSY 9359052029 9359052029 9359052029 9359052029 10 DRAIN HOSE ASSY 9359242000 9359242000 9359242000 9359242000 11 KIT (SEPARATE WALL B SUB ASSY 9373448013 9373448013 9373448013...
  • Page 286 MODELS : AB*A12, AB*A14 AB*A18, AB*A24 Parts No. Description Q'ty AB*A12 AB*A14 AB*A18 AB*A24 20 CASING COVER 9358544006 9358544006 9358544006 9358544006 21 CASING 9358543009 9358543009 9358543009 9358543009 22 SIROCCO FAN ASSY 9358621004 9358621004 9358621004 9358621004 23 PROTECTOR 9359282006 9359282006 9359282006 9359282006 24 BRACKET (MOTOR) 9358594001...
  • Page 288 MODELS : AB*A12, AB*A14 AB*A18, AB*A24 Parts No. Description Q'ty AB*A12 AB*A14 AB*A18 AB*A24 EVAPORATOR TOTAL ASSY 9359051220 9359051220 9359051237 9359051237 - EVAPORATOR ASSY 9362513029 9362513029 9362513036 9362513036 39 DEW PROOF PLATE 9372673010 9372673010 9372673010 9372673010 40 BRACKET A (EVA) L 9372668016 9372668016 9372668016...
  • Page 290 MODELS : AB*A12, AB*A14 AB*A18, AB*A24 Parts No. Description Q'ty AB*A12 AB*A14 AB*A18 AB*A24 100 CONTROL BOX COVER 9359097006 9359097006 9359097006 9359097006 101 CONTROL BOX 9358600016 9358600016 9358600016 9358600016 102 TERMINAL 7P 9703403040 9703403040 9703403040 9703403040 103 CLAMP (CORD) C 9359677000 9359677000 9359677000...
  • Page 291 MODELS : AB*A30, AB*A36, AB*A45, AB*A54 13 14 15 16 Parts No. Description Q'ty AB*A30 AB*A36 AB*A45 AB*A54 1 BASE ASSY 9359680000 9359680000 9359680000 9359680000 2 PANEL -L 9359685005 9359685005 9359685005 9359685005 3 PANEL -R 9359683001 9359683001 9359683001 9359683001 4 HANGER BRACKET 9359742005 9359742005 9359742005...
  • Page 292 MODELS : AB*A30, AB*A36, AB*A45, AB*A54 Parts No. Description Q'ty AB*A30 AB*A36 AB*A45 AB*A54 40 TOP COVER 9359737001 9359737001 9359737001 9359737001 41 LOUVER ROD 9359725008 9359725008 9359725008 9359725008 42 MOTOR ROD 9359723004 9359723004 9359723004 9359723004 43 LOUVER STOPPER 9359724001 9359724001 9359724001 9359724001 44 LOUVER LINK...
  • Page 293 MODELS : AB*A36, AB*A45, AB*A54 MODEL : AB*A30 Parts No. Description Q'ty AB*A30 AB*A36 AB*A45 AB*A54 58 DISTRIBUTOR ASSY 9373764038 9373764021 9373764021 9373764021 59 COUPLING PIPE ASSY 9373038351 9371661025 9371661025 9371661025 65 THERMISTOR (PIPE) 9900220020 9900220020 9900220020 9900220020 66 THERMISTOR (PIPE) 9703297106 9703297106 9703297106...
  • Page 294 MODELS : AB*A30, AB*A36, AB*A45, AB*A54 Parts No. Description Q'ty AB*A30 AB*A36 AB*A45 AB*A54 41 LOUVER ROD 9359725008 9359725008 9359725008 9359725008 42 MOTOR ROD 9359723004 9359723004 9359723004 9359723004 43 LOUVER STOPPER 9359724001 9359724001 9359724001 9359724001 44 LOUVER LINK 9359726005 9359726005 9359726005 9359726005 45 LOUVER SPRING...
  • Page 295 MODELS : AB*A30, AB*A36, AB*A45, AB*A54 Parts No. Description Q'ty AB*A30 AB*A36 AB*A45 AB*A54 2 PANEL -L 9359685005 9359685005 9359685005 9359685005 3 PANEL -R 9359683001 9359683001 9359683001 9359683001 9359731009 9359731009 9359731009 9359731009 51 FLAP ASSY 52 BUSHING 9359733003 9359733003 9359733003 9359733003 53 MOTOR BASE 9359727002...
  • Page 296 9359736004 9359736004 9359736004 PCB HOLDER 90 INDICATOR PCB ASSY 9705891029 9705891029 9705891029 9705891029 91 RECEIVER COVER 9359714002 9359714002 9359714002 9359714002 92 BADGE "FUJITSU" 9359735014 9359735014 9359735014 9359735014 BADGE "GENERAL" 9359735021 9359735021 9359735021 9359735021 100 CONTROLLER PCB ASSY 9707514056 9707514056 9707514056...
  • Page 297 MODELS : AS*E07, AS*E09 AS*E12, AS*E14 Parts No. Description Q'ty AS*E07 AS*E09 AS*E12 AS*E14 1 BRACKET PANEL ASSY 9312752027 9312752027 9312752027 9312752027 2 PANEL (FRONT) 9309999053 9309999053 9309999053 9309999053 3 WIRE CLAMPER 9311946014 9311946014 9311946014 9311946014 4 CLAMPER (GRILLE) 9306755010 9306755010 9306755010 9306755010...
  • Page 298 MODELS : AS*E07, AS*E09 AS*E12, AS*E14 Note: Since the thermistors of 12, 13, and 17 are directly mounted to controller PCB, please place order by the controller PCB. Soldering is required when the order of thermistor is placed individually. Parts No. Description Q'ty AS*E07...
  • Page 299 MODELS : AS*E07, AS*E09 AS*E12, AS*E14 Parts No. Description Q'ty AS*E07 AS*E09 AS*E12 AS*E14 100 BOX (SWITCH) SUB ASSY 9312374021 9312374021 9312374021 9312374021 101 MOTOR CUSHION N 9312979011 9312979011 9312979011 9312979011 102 MOTOR DC BRUSHLESS 9602109012 9602109012 9602109012 9602109012 103 MOTOR CUSHION NR 9313168018 9313168018 9313168018...
  • Page 300 MODELS : AS*A18, AS*A24 AS*A30 Parts No. Description Q'ty AS*A18 AS*A24 AS*A30 1 FIXING PLATE 9368579005 9368579005 9368579005 2 FRONT PANEL 9368540012 9368540012 9368540012 3 CONTROL BOX COVER 9368611002 9368611002 9368611002 4 SCREW COVER 9368576011 9368576011 9368576011 5 AIR FILTER 9373613015 9373613015 9373613015...
  • Page 301 MODELS : AS*A18, AS*A24 AS*A30 Parts No. Description Q'ty AS*A18 AS*A24 AS*A30 WATER SEAL PLATE SA 9378055018 9378055018 9378055018 9 WATER SEAL PLATE 9369684005 9369684005 9369684005 10 KIT(EVA SUP R SA) 9371167015 9371167015 9371167015 11 MOTOR INDUCTION 9601388012 9601388012 9601388012 12 RUBBER (MOTOR) 9368575007 9368575007...
  • Page 302 MODELS : AS*A18, AS*A24 AS*A30 Parts No. Description Q'ty AS*A18 AS*A24 AS*A30 34 LINK HOLDER 9368563004 9368563004 9368563004 35 LOUVER SPRING 9368613006 9368613006 9368613006 36 LOUVER LINK 9368562007 9368562007 9368562007 37 MOTOR STEP 9900139032 9900139032 9900139032 38 FLAP SPRING 9368612009 9368612009 9368612009 39 SECTOR GEAR...
  • Page 303 MODELS : AS*A18, AS*A24 MODELS : AS*A30 Parts No. Description Q'ty AS*A18 AS*A24 AS*A30 44 KIT (EVA SUP L SA) 9371165011 9371165011 9371165011 45 KIT(EVA BRKT SA) 9371166018 9371166018 9371166018 EVAPORATOR TOTAL ASSY 9369202223 9369202223 - EVAPORATOR ASSY 9372102015 9368576011 47 EVAPORATOR TOTAL ASSY 9369202230 - EVAPORATOR A ASSY...
  • Page 304 MODELS : AS*A18, AS*A24 AS*A30 Parts No. Description Q'ty AS*A18 AS*A24 AS*A30 100 CONTROL BOX COVER R 9369631009 9369631009 9369631009 101 CONTROL BOX 9368543006 9368543006 9368543006 102 EARTH PLATE 9368580001 9368580001 9368580001 103 TERMINAL PLATE 9374875016 9374875016 9374875016 104 TERMINAL 4P 9306488086 9306488086 9306488086...
  • Page 305 MODELS : AW*A07, AW*A09, AW*A12, AW*A14 AW*A18, AW*A24, AW*A30 Parts No. Description Q'ty AW*A07 AW*A09 AW*A12 AW*A14 AW*A18 AW*A24 AW*A30 1 FIXING PLATE 9367987009 9367987009 9367987009 9367987009 9367987009 9367987009 9367987009 2 PIPE BRACKET 9367844005 9367844005 9367844005 9367844005 9367844005 9367844005 9367844005 3 KIT (INTAKE CVR SUB ASSY) 9371163017 9371163017...
  • Page 306 MODELS : AW*A07, AW*A09, AW*A12, AW*A14 AW*A18, AW*A24, AW*A30 Parts No. Description Q'ty AW*A07 AW*A09 AW*A12 AW*A14 AW*A18 AW*A24 AW*A30 12 WIRE COVER 9377817013 9377817013 9377817013 9377817013 9377817013 9377817013 9377817013 13 EVA SUPPORT R 9367684007 9367684007 9367684007 9367684007 9367684007 9367684007 9367684007 14 RUBBER (MOTOR) 9367676002...
  • Page 307 MODELS : AW*A07, AW*A09, AW*A12, AW*A14 AW*A18, AW*A24, AW*A30 Parts No. Description Q'ty AW*A07 AW*A09 AW*A12 AW*A14 AW*A18 AW*A24 AW*A30 31 LINK ARM 9367694006 9367694006 9367694006 9367694006 9367694006 9367694006 9367694006 32 GEAR B 9367692002 9367692002 9367692002 9367692002 9367692002 9367692002 9367692002 33 LINK 9367693009 9367693009...
  • Page 308 MODELS : AW*A07, AW*A09, AW*A12, AW*A14 AW*A18, AW*A24, AW*A30 Parts No. Description Q'ty AW*A07 AW*A09 AW*A12 AW*A14 AW*A18 AW*A24 AW*A30 38 LOUVER SPRING 9369030000 9369030000 9369030000 9369030000 9369030000 9369030000 9369030000 39 LOUVER ROD 9367698004 9367698004 9367698004 9367698004 9367698004 9367698004 9367698004 40 LOUVER LINK 9367697007 9367697007...
  • Page 309 MODELS : AW*A07, AW*A09 MODELS : AW*A12, AW*A14 AW*A18, AW*A24 MODELS : AW*A30 Parts No. Description Q'ty AW*A07 AW*A09 AW*A12 AW*A14 AW*A18 AW*A24 AW*A30 47 KIT (FILTER GUIDE) 9371130019 9371130019 9371130019 9371130019 9371130019 9371130019 9371130019 48 THERMISTOR GUARD 9377815019 9377815019 9377815019 9377815019 9377815019...
  • Page 310 MODELS : AW*A07, AW*A09, AW*A12, AW*A14 AW*A18, AW*A24, AW*A30 Parts No. Description Q'ty AW*A07 AW*A09 AW*A12 AW*A14 AW*A18 AW*A24 AW*A30 100 CONTROL BOX 9367663002 9367663002 9367663002 9367663002 9367663002 9367663002 9367663002 101 EARTH PLATE 9368017002 9368017002 9368017002 9368017002 9368017002 9368017002 9368017002 102 RECEIVER PCB 9705907010 9705907010...
  • Page 311 8-3 STANDARD ACCESSORIES MODELS : AUXB07, AUXB09, AUXB12, AUXB14, AUXB18 Parts No. Parts No. Name and Shape Q'ty Application AUXB07 AUXB12 AUXB18 AUXB09 AUXB14 Manual (Operation) O P E R A T IO 9369313028 9369313028 9369313028 Manual (Installation) IN S T A L L A 9371022031 9371022031...
  • Page 312 MODELS : AU*A20, AU*A25, AU*A30, AU*A36, AU*A45, AU*A54 Parts No. Parts No. Name and Shape Q'ty Application AU*A20 AU*A30 AU*A45 AU*A25 AU*A36 AU*A54 Manual (Operation) O P E R A T IO 9369313028 9369313028 9369313028 Manual (Installation) IN S T A L L A 9371022024 9371022024...
  • Page 313 MODELS : ARXB07, ARXB09, ARXB12, ARXB14, ARXB18 Parts No. Parts No. Name and Shape Q'ty Application ARXB07 ARXB12 ARXB18 ARXB09 ARXB14 Manual (Operation) O P E R A T IO 9374343027 9374343027 9374343027 Manual (Installation) IN S T A L L A 9374342020 9374342020 9374342020...
  • Page 314 MODELS : ARXB25, ARXB30, ARXB36, ARXB45 ARXA25, ARXA30, ARXA36, ARXA45 Parts No. Parts No. Name and Shape Q'ty Application ARXB25 ARXB30 ARXB36 ARXB45 ARXA25 ARXA30 ARXA36 ARXA45 Manual (Operation) O P E R A T IO 9373384021 9373384021 9373384021 9373384021 Manual (Installation) IN S T A L L A...
  • Page 315 MODELS : ARXC36, ARXC45, ARXC60 Parts No. Parts No. Name and Shape Q'ty Application ARXC36 ARXC45 ARXC60 Manual (Operation) O P E R A T IO 9373384021 9373384021 9373384021 Manual (Installation) IN S T A L L A 9373870029 9373870029 9373870029 T IO N Coupler heat...
  • Page 316 MODELS : ARXC90 Parts No. Parts No. Name and Shape Q'ty Application ARXC90 Manual (Operation) O P E R A T IO 9373384021 Manual (Installation) IN S T A L L A 9365748053 T IO N Coupler heat Insulation For indoor unit (Large) 9350716029 installation...
  • Page 317 MODELS : AB*A12, AB*A14, AB*A18, AB*A24 Parts No. Parts No. Name and Shape Q'ty Application AB*A12 AB*A14 AB*A18 AB*A24 Manual (Operation) O P E R A T IO 9369308024 9369308024 9369308024 9369308024 Manual (Installation) IN S T A L L A 9367701032 9367701032 9367701032...
  • Page 318 MODELS : AB*A30, AB*A36, AB*A45, AB*A54 Parts No. Parts No. Name and Shape Q'ty Application AB*A30 AB*A36 AB*A45 AB*A54 Manual (Operation) O P E R A T IO 9369308024 9369308024 9369308024 9369308024 Manual (Installation) IN S T A L L A 9367702039 9367702039 9367702039...
  • Page 319 MODELS : AS*E07, AS*E09, AS*E12, AS*E14 Parts No. Parts No. Name and Shape Q'ty Application AS*E07 AS*E09 AS*E12 AS*E14 Manual (Operation) O P E R A T IO 9377772015 9377772015 9377772015 9377772015 Manual (Installation) IN S T A L L A 9377773012 9377773012 9377773012...
  • Page 320 MODELS : AS*A18, AS*A24, AS*A30 Parts No. Parts No. Name and Shape Q'ty Application AS*A18 AS*A24 AS*A30 Manual (Operation) O P E R A T IO 9371056029 9371056029 9371056029 Manual (Installation) IN S T A L L A 9371057026 9371057026 9371057026 T IO N Adapter B...
  • Page 321 MODELS : AW*A07, AW*A09, AW*A12, AW*A14 AW*A18, AW*A24, AW*A30 Parts No. Parts No. Name and Shape Q'ty Application AW*A07 AW*A12 AW*A18 AW*A30 AW*A09 AW*A14 AW*A24 Manual (Operation) O P E R A T IO 9371039022 9371039022 9371039022 9371039022 Manual (Installation) IN S T A L L A 9371040028...
  • Page 322 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 2004 Fujitsu General Limited. All rights reserved. Printed in Japan 2011.10.11...

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