Fujitsu AirStage AB12 Service Manual Download Page 25

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4-1 PCB LAYOUTS

4. FUNCTION OF PRINTED CIRCUIT BOARD

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INDOOR UNIT CONTROL CIRCUIT BOARD

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OUTDOOR UNIT CONTROL CIRCUIT BOARD

LED1
LED2
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LED6

EXT.
INPUT1

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INPUT2

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Summary of Contents for AirStage AB12

Page 1: ...Multi Air Conditioning System for Buildings VRF FREELY SELECTABLE MULTI TYPE SYSTEM SERVICE MANUAL CONFIDENTIAL ...

Page 2: ...Multi Air Conditioning System for Buildings VRF FREELY SELECTABLE MULTI TYPE SYSTEM SERVICE MANUAL 2 ...

Page 3: ...CONSTRUCTION CONDITIONS MODEL CONSTRUCTION COMPRESSOR OPERATION CONTROL PUMP DOWN CONTROL PROTECTION FUNCTION OIL RECOVERY CONTROL OIL RETURN CONTROL DEFROSTING CONTROL FOUR WAY VALVE 5 CONTROL SOLENOID VALVE 2 CONTROL CIRCULATING SAVE AMOUNT CONTROL FOUR WAY VALVE 1 CONTROL EXPANSION VALVE 1 2 CONTROL OUTDOOR FAN MOTOR CONTROL HEAT EXCHANGER CAPACITY CONTROL 3 MINUTES RESTART PREVENTION 3 MIN ST ...

Page 4: ...LOUVER CONTROL 6 4 ELECTRONIC EXPANSION VALVE CONTROL 6 5 AUTO RESTART 6 6 DRAIN PUMP OPERATION 6 7 59 64 88 89 90 91 88 24 84 10 DISASSEMBLY ILLUSTRATION 11 PARTS LIST 4 64 64 71 74 65 69 69 70 74 75 83 8 1 1 8 1 2 8 2 1 NORMAL OPERATING DISPLAY ABNORMAL OPERATION DISPLAY 8 2 2 REMOTE CONTROL UNIT 8 3 8 4 OTHERS 8 5 8 5 1 CHARACTERISTICS OF THERMISTOR PRESSURE SENSOR 8 5 2 8 5 3 ELECTRIC EXPANSIO...

Page 5: ...APACITY RANGE 380 415V 50Hz 380 415V 50Hz 1 380 1 300 650 Compact size Serial installation possible 2002 kw Model code 45 36 30 25 24 60 54 20 18 14 12 9 7 12 7 10 5 8 8 7 05 6 8 17 0 14 1 5 7 5 3 4 05 3 6 2 8 2 15 Type Capacity Cassette compact Cassette Duct Duct Duct Duct High Static Pressure Ceiling Floor Ceiling Wall mounted Wall mounted 1 OUTLINE OF SYSTEM 1 1 MODEL CONSTRUCTION 5 ...

Page 6: ...A4A 4 UTF Y54A1A 1 Type Model Total model code of connectable indoor unit Heat pump Heat recovery UTR HD906A 3 6 UTR HD908A 7 8 UTR HD906R 3 6 UTR HD908R 7 8 Type Model Connectable indoor units Cooling only Heat pump Heat recovery RB REFRIGERANT BRANCH UNIT SEPARATION TUBE Above units are required during heat recovery operation HEADER Cooling only 6 ...

Page 7: ...k 200m total pipe length a g i 100m a b f 100m actual pipe length Difference in height between outdoor unit and indoor units H1 maximum 50m Difference in height between adjacent indoor units H2 maximum 15m g i 40m b f 40m actual pipe length a b c d e f g h i 200m total pipe length a d c b H1 H2 e Outdoor unit Indoor unit Indoor unit Indoor unit Indoor unit H1 a b c d e f H2 g h i j k Outdoor unit ...

Page 8: ...mm Total model code of Gas Pipe Liquid Pipe Separation Kit indoor unit Less than 30 15 88 9 53 UTR BP54A 31 or more to 60 19 05 9 53 61 or more 28 58 12 7 UTR BP90A unit mm Model code of indoor unit Gas Pipe Liquid Pipe 7 9 9 53 6 35 12 14 12 7 6 35 18 20 24 25 15 88 6 35 36 45 54 60 19 05 9 53 30 15 88 9 53 PIPE SIZE COOLING ONLY HEAT PUMP MODEL 8 18 Cassette compact only ...

Page 9: ...door unit and indoor units H1 maximum 50m Difference in height between adjacent indoor units H2 maximum 15m Difference in height between RB unit and indoor unit H3 5m or less b c d e f 40m actual pipe length 10m actual pipe length a b c d e f g h i j k 200m total pipe length a g i 100m a b f 100m actual pipe length Difference in height between outdoor unit and indoor units H1 maximum 50m Differenc...

Page 10: ...19 05 12 7 unit mm Total model code of Suction Discharge Liquid Pipe Separation Kit indoor unit Gas Pipe Gas Pipe Less than 30 15 88 12 7 9 53 UTR BP54R 31 or more to 60 19 05 15 88 9 53 61 or more 28 58 19 05 12 7 UTR BP90R unit mm Model code of indoor unit Gas Pipe Liquid Pipe 7 9 9 53 6 35 12 14 12 7 6 35 18 20 24 25 15 88 6 35 36 45 54 60 19 05 9 53 30 15 88 9 53 HEAT RECOVERY MODEL 10 ...

Page 11: ...rant to all connected Indoor unit Add refrigerant to the corresponding type as shown in the Table for every connected Indoor unit to the refrigerant system Example When AR30 x2 and AU18 x2 are connected to the refrigerant system Additional charge of system type is 1 0 kg x2 0 65 kg x2 3 3 kg Model Model code AS AU AB AR 7 9 0 65 12 0 65 14 0 9 0 65 18 0 65 0 65 0 7 24 25 0 9 0 8 20 1 0 1 0 30 0 9 ...

Page 12: ...d the unit Do not bundle the transmission cable with other wires Total wiring length maximum 2000m 1 2 3 However when wiring exceeds 500m in length a signal amplifier option is required Use the shielded wire specified and always ground however one side only If not transmit receive with a transmission line is not only impossible normally but malfunction may occur 4 10m cable attached Use the shield...

Page 13: ...t 3 6 SW 8 SW 7 Setting example 63 2 SW 5 Refrigerant circuit address Refrigerant circuit address Indoor unit address Remote controller address Number of indoor unit connection Remote controller switch 2 DIP SW1 1 DIP SW1 2 DIP SW1 4 0 SW 9 Setting example 0 0 99 0 99 0 15 0 15 ON OFF ON OFF combi nation INDOOR UNIT CONTROL METHOD DSW1 4 OFF ON METHOD Master Slave REMARKS Allocate remote control a...

Page 14: ...8 INDOOR UNIT SW8 SW7 Refrigerant circuit address Rotary Switch setting OUTDOOR UNIT SW9 SW8 INDOOR UNIT SW8 SW7 0 1 3 2 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 0 1 3 2 4 5 6 7 8 10 11 12 13 14 15 9 0 1 3 2 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 7...

Page 15: ...roller Wireless remote controller 2 SETTING EXAMPLE Rotary sw9 8 9 8 Refrigeration circuit address Rotary sw8 7 8 7 5 9 Rotary sw5 Rotary sw9 63 9 8 0 9 8 8 7 5 9 8 7 5 9 8 7 5 9 8 7 5 9 8 7 5 9 8 7 5 9 8 7 5 9 8 7 5 9 8 7 5 9 8 7 5 9 8 7 5 9 8 7 5 9 8 7 5 9 8 7 5 9 8 7 5 9 8 7 5 9 0 0 0 0 0 0 0 1 0 0 0 1 Instructions for setting up the address 1 The refrigerant system address of the indoor and ou...

Page 16: ...ing No 0 Setting by rotary SW5 Indoor unit PCB Address setting No 0 Setting by rotary SW7 8 Indoor unit PCB Address setting No 0 Refrigerant circuit address Outdoor unit Refrigerant circuit address Indoor unit 0 0 0 Remote controller address Indoor unit 0 00 0 01 1 02 2 0 03 3 0 04 0 0 05 0 Setting by rotary SW9 Indoor unit PCB Address setting No 0 99 99 15 15 1 1 1 0 1 2 2 2 2 0 1 2 16 ...

Page 17: ...No indoor unit connection 1 2 4 Setting by DIP SW 1 2 Remote controller PCB Remote controller switch 1 Setting by DIP SW 1 1 Remote controller unit PCB OFF Master Slave ON ON OFF ON 17 ...

Page 18: ...P SW 1 4 Remote controller unit PCB Remote controller Master Slave Master Slave Central remote controller address Central remote controller Max 16 00 01 02 03 Set central remote controller address first to conduct the initial setting of it 18 ...

Page 19: ...e power supplies connected 1 2 Power supply for the indoor unit and outdoor unit is separated Is the spec for the power supply cable correct Is the RB unit cable connected Is the length of the transmission line under the limit Is the spec for the transmission cable correct non polar 2 core 0 75 1 25mm Is the transmission cable connected to all units 2 Are the addresses set Ex Refrigerant circuit a...

Page 20: ...procedure for the test operation If the test operation is to be done for cooling operation set DIP switch SW 1 1 to on If the test operation is to be done for heating set DIP switch SW1 2 to on 1 Standard wired remote controller For test running when the remote controller FAN CONTROL button and MASTER CONTROL button are pressed simulta neously for more than three seconds when the air conditioner i...

Page 21: ...al and perform operation check Check that there are no abnormal sounds or vibration sounds during test running 2 Standard wireless remote controller Press the remote control unit test run button while the air condi tioner is running At the end of test running press the remote control unit start stop button Operation can be checked by lighting and flashing of the display section OPERATION and TIMER...

Page 22: ... and de icing prevention has priority over item 1 3 After 60 minutes passes the test run stops 2 When the test run signal is transmitted from the outdoor unit 1 Whether state of the indoor unit operates or stops test run will be made in accordance with the operation mode of the indoor unit which belongs to the same refrigerant system 2 Test running initializationis shown below Air Flow Hi Hi RoomT...

Page 23: ...Strainer Pressure sensor Dryer Solenoid valve Thermistor TH D Discharge thermistor TH Hi H E inlet thermistor TH HM H E middle thermistor TH HO H E outlet thermistor TH OA Outlet air thermistor HP High pressure MP Middle pressure LP Low pressure Pressure switch HP High pressure LP Low pressure Power accumulation unit Heat exchanger INDOOR UNIT A INDOOR UNIT B INDOOR UNIT C TH HO TH HM TH HI TH OA ...

Page 24: ...ge thermistor TH Hi H E inlet thermistor TH HM H E middle thermistor TH HO H E outlet thermistor TH OA Outlet air thermistor HP High pressure MP Middle pressure LP Low pressure Pressure switch HP High pressure LP Low pressure Power accumulation unit Heat exchanger INDOOR UNIT A INDOOR UNIT B INDOOR UNIT C TH HO TH HM TH HI TH OA EEV TH HO TH HM TH HI TH OA EEV TH HO TH HM TH HI TH OA EEV BV1 BV2 B...

Page 25: ... CN34 CN33 CN32 CN52 CN53 CN45 CN24 CN25 CN26 CN4 CN3 CN28 CN44 CN22 CN2 CN35 CN29 CN30 CN31 CN1 CN43 CN42 CN48 CN49 CN50 CN21 CN20 CN19 CN18 CN17 CN14 CN13 CN11 CN9 CN7 CN12 CN10 CN8 CN6 CN5 CN26 JM1 3 CN51 4 1 PCB LAYOUTS 4 FUNCTION OF PRINTED CIRCUIT BOARD INDOOR UNIT CONTROL CIRCUIT BOARD OUTDOOR UNIT CONTROL CIRCUIT BOARD LED1 LED2 LED3 LED4 LED5 LED6 EXT INPUT1 EXT INPUT2 25 ...

Page 26: ...M AUXILIARY HEATER CN12 AUXILIARY HEATER OUTPUT EXTERNAL OUTPUT INDICATOR DISPLAY OUTPUT SP MOTOR DRIVE CIRCUIT ACTUATOR DRIVE CIRCUIT FILTER CIRCUIT RECTIFICATION SMOOTHING CIRCUIT DC DC CONVERTER 5V 12V 14V POWER DETECTION CIRCUIT TEMPERATURE DETECTION CIRCUIT FAN ROTATION READ CIRCUIT SWITCH READ CIRCUIT FLOAT SWITCH INPUT CIRCUIT TEST INPUT CIRCUIT EXTERNAL INPUT CIRCUIT COMMUNICATION CIRCUIT ...

Page 27: ... CN27 COMPRESSOR CN24 26 COMPRESSOR CN24 26 OUTDOOR UNIT FILTER CIRCUIT RECTIFICATION SMOOTHING CIRCUIT DC DC CONVERTER 5V 12V 14V POWER DETECTION CIRCUIT ST MOTOR DRIVE CIRCUIT PRESSURE DETECTION CIRCUIT SWITCH READ CIRCUIT TEST INPUT CIRCUIT COMMUNICATION CIRCUIT FLASH WRITE CIRCUIT RESET CIRCUIT OSCILLATOR CIRCUIT COMMUNICATION POWER DETECTION CIRCUIT TEMPERATURE DETECTION CIRCUIT OIL SENSOR RE...

Page 28: ...VALVE CN15 FLOAT SW CN16 FAN FEEDBACK CN17 WIRED REMOTE CONTROLLER CN18 TEST CN19 R TH CN20 P TH CN21 S TH CN22 EXT OUTPUT CN23 EXT INPUT CN24 FLASH MAIN CN25 FLASH SUB CN26 COMMUNICATE SW1 FUNCTION 1 SW2 FUNCTION 2 SW3 FUNCTION 3 SW4 FUNCTION 4 SW5 INDOOR UNIT ADDRESS 1 SW6 INDOOR UNIT ADDRESS 2 SW7 REFRIGERANT ADDRESS 1 SW8 REFRIGERANT ADDRESS 2 SW9 REMOTE CONT ROLLER ADDRESS SW10 MANUAL AUTO 4 ...

Page 29: ...CN26 COMP 3 CN27 TH 1 CN28 FLASH W R S CN29 E E V 1 CN30 E E V 2 CN31 E E V 3 CN32 P SEN L CN33 P SEN M CN34 P SEN H CN35 TEST CN42 P SW H CN43 P SW L CN44 FLASH W R M CN45 TH 2 CN48 EXT OUTPUT CN49 EXT INPUT2 CN50 EXT INPUT1 CN51 COMMUNICATION PWB CN52 OIL LV HI CN53 OIL LV LO SW1 SW2 SW3 SW4 OUTDOOR UNIT OUTDOOR UNIT TYPE SW5 SW6 SW7 SW8 SW9 FUNCTION 1 FUNCTION 1 FUNCTION 1 FUNCTION 1 FUNCTION 1...

Page 30: ...cide room temp correct coefficient value of cooling 1 INDOOR UNIT 2 1 SW1 1 SW1 2 High ceiling 2 HIGH HIGH HIGH ON ON ON OFF OFF OFF MED MED MED MED LOW LOW LOW S LOW S LOW S LOW S LOW LOW 2 3 4 5 6 ROOM TEMP CORRECT COEFFICIENT OF HEATING Coefficient value OFF ON 2 deg SW1 3 SW1 4 0 deg OFF ON OFF 2 deg OFF 4 deg ON ON 2 DIP SWITCH 2 ROOM TEMP CORRECT COEFFICIENT OF COOLING Coefficient value 0 de...

Page 31: ...door unit setting INDOOR UNIT FAN SPEED TABLE 0 1 3 OFF OFF ON SW3 1 SW3 2 2 4 7 5 OFF OFF ON ON ON OFF OFF OFF ON OFF OFF ON ON ON ON OFF ON 6 ON ON OFF Table No SW3 3 OFF INDOOR FAN MOTOR SPEED LARGE CEILING 0 1 3 AB30 750 Not used Models Hi 2 4 7 5 900 1000 850 AB36 750 500 500 1000 1100 AB45 850 500 6 1150 1250 AB54 1000 500 Table No Me Lo S Lo 600 Rotating speed of the indoor fan motor is the...

Page 32: ... unit model switch Indoor unit model capacity data is set with SW4 1 4 1 4 DIP SWITCH 4 INDOOR UNIT MODEL SWITCH 90 OFF ON SW4 1 SW4 2 OFF Type SW4 3 ON 60 ON OFF ON ON 54 OFF OFF ON ON 45 ON OFF OFF ON 36 OFF OFF OFF ON 30 ON ON ON OFF 25 OFF ON ON OFF 20 ON ON OFF OFF 18 OFF ON OFF OFF 14 ON OFF ON OFF 12 OFF OFF ON OFF 9 ON OFF OFF OFF 7 OFF OFF OFF OFF SW4 4 Capacity Not used Rotating speed of...

Page 33: ...jumper lead combinations which are shown below Once set other infrared signal is not accepted 1 5 JUMPER REMOTE CONTROLLER CUSTOM CODE SELECTION Custom code Type A Primary setting JP1 JP2 Type C Type B Type D Not used JP3 2 Connect Disconnect Connect Disconnect Connect Connect Disconnect Disconnect 33 ...

Page 34: ...OPERATION FAN MODE SW Release SW2 1 ON Operate OFF 1 Snow falling protection fan mode SW When the compressor is stopped snow falling protection fan mode is set with SW2 2 SNOW FALLING PROTECTION FAN MODE SW Snow falling protection fan mode Release SW2 2 ON Operate OFF 2 Initial setting Initial setting SW1 2 SW1 1 Test Run Remarks OFF OFF Normal operation OFF ON Cooling test run OFF ON and operated...

Page 35: ...se Heater Setting SW SW5 3 ON Invalidity OFF BASE HEATER SETTING SW Validity Remarks 6 DIP SWITCH6 SETTING IS FORBIDDEN System type switch 1 2 7 DIP SWITCH7 1 ON ON OFF OFF SW7 1 Model selection SW7 2 ON OFF OFF ON Cannot Set Heat Recovery Heat Pump Cooling Only Model change in Heat recovery Heat pump type Cooling only type are made with SW7 1 2 SYSTEM TYPE SWITCH 1 2 8 External input terminal 1 2...

Page 36: ...ve OFF COOLING ONLY HEAT PUMP SWITCH Operation system Heat pump SW2 1 ON Cooling only OFF Auto change over validity invalidity Auto change over validity invalidity is set with SW2 2 2 FINAL REMOTE CONTROLLER SWITCH Terminator NO SW1 1 ON YES OFF Indoor unit connection This is switched according to No of connected indoor unit 2 No INDOOR UNIT CONNECTION SWITCH Number of indoor unit One unit connect...

Page 37: ...nce Used for indication of the refrigerant system indoor unit address and error history 4 MAINTENANCE SWITCH Mode Normal mode SW2 4 ON Maintenance mode OFF SW2 5 setting is forbidden 5 Battery backup switch When installing turn the SW2 6 ON 6 37 ...

Page 38: ...nvalidity the wired and wireless remote controller operation prohibit function Factory setting Factory setting Factory setting CENTRAL REMOTE CONTROLLER 1 3 2 4 DIP SW2 6 2 7 setting forbidden DIP SW2 8 setting SRAM Battery SW2 8 ON OFF DIP SW 2 6 OFF DIP SW 2 7 OFF When installing the control remote controller this switch must be set to ON OFF ON At the time of shipment the battery is turned off ...

Page 39: ...Y ANTI FREEZE CENTRAL DAY OFF DEFROST TEST 1 2 14 1 START STOP button Pressed to start and stop operation 13 Vertical swing lamp 2 Operation lamp Lights during operation and when the timer is on 3 Energy save button Turns the energy efficient mode on and off 4 Day off button Temporary cancellation of one day timer 5 Energy save lamp Lights up when the unit is in the energy save mode 6 Zone button ...

Page 40: ...eep timer button Press to select sleep timer 5 Signal transmitter 6 Timer button Press to select the timer mode OFF TIMER ON TIMER PROGRAM TIMER TIMER RESET 7 Fan control button 8 Battery compartment lid 9 Air flow direction button 16 17 Clock display 20 Master control display 19 Set temperature display 21 Fan speed display 12 Timer set indicator 22 Temperature set indicator 18 Timer mode display ...

Page 41: ...TI FREEZE COOL FAN DRY HEAT AUTO FIXED DEFROST ON OFF ON OFF 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 x100 ZONE CENTRAL CONTROL SETTING MONIT...

Page 42: ... Time button 12 Day off button 24 Timer copy button 25 Timer mode button 26 Clock adjust button 27 Day button 28 Timer delete button 29 Memory operation button 30 Central button 31 All Group button 32 Select 100 button 33 34 Day of the week display 35 Status display 37 Central control display 38 Filter reset display Zone display 39 Temperature display 40 Master control display 43 Energy save displ...

Page 43: ...tion High pressure protection Compressor stop condition When all the indoor units in no cooling requirement capacity or heating requirement capacity all the compressors are stopped But in the following case the compressor operates in accordance with operation of each mode Defrosting Oil recovery 5 1 2 COMPRESSOR OUTPUT PATTERN The output pattern of a compressor is defined as shown below OUTPUT PAT...

Page 44: ...ils compressor 2 is substituted for compressor 1 b When compressor 2 4 HP fails compressor 3 is substituted for compressor 2 c When compressor 3 6 HP fails compressor 1 and 2 are substituted for compressor 3 x The compressor is stopped by a protection function or abnormal operation The figures show the compressor capacity HP that permits system operation COMPRESSOR RECOVERY OPERATION ORDINARY OPER...

Page 45: ...l pulse Control pulse EEV1 0 pulse 0 pulse Control pulse Control pulse Control pulse Control pulse Cooling 2HP Cooling 4HP Cooling 6HP Cooling 8HP Cooling 10HP Cooling 12HP EEV2 2 4 6 2 Heating mainly heating Pattern 1 2 3 4 5 6 ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON OFF OFF ON OFF ON OFF ON OFF OFF ON ON Remarks 4WV2 4WV3 4WV4 SV7 SV8 Control pulse Control pulse 0 pulse Control ...

Page 46: ...the overload protection operation during heating operation is performed Fan Speed The outdoor fan motor has the following five steps of speed in addition to Stop Intermittent output 1 Stop FAN 1 Stop FAN 2 for 50 sec 2 Lo Stop is repeated for 20 sec 3 The intermittent output is always started from Stop Stop of 50 sec 4 The Stop Stop of 50 sec at the intermittent output is not a Stop of the outdoor...

Page 47: ...nit is changed from the same capacity operating mode to another operating mode the fan operates in accordance with fan speed at the start of that mode d Oil recovery fan control The fan control in the cooling mode is performed at the time of oil recovery 18 C 18 C 15 C 15 C 10 C 10 C Fan Speed Switching a Fan Control of cooling mode and cooling principal mode The fan motor is operated at fan speed...

Page 48: ...tion Defrosting finish The expansion valves have the following four states CONTROL STOP Power is not yet supplied to the outdoor unit so the expansion valve does not operate STAND BY Power is supplied to the outdoor unit and the expansion valve is initialized but automatic control of the expansion valve has not been performed WATCHING The compressor is turned off while the expansion valve is contr...

Page 49: ...ns off for 5 seconds Thereafter 4 way valve 1 turns on and 3 seconds later the compressor starts However except in the following cases Defrosting defrosting end Oil recovery in progress oil recovery end 2 Restarting 4 way valve switching Four wave valve 1 is set according to the operation modes as shown below 1 4 way valve 1 delayed switching control compatible 3 4 way valve 1 setting by operation...

Page 50: ...requirement capacity practically capacity by the difference is bypassed as a circulating save amount Compressor s actual capacity Compressor s requirement capacity Start condition In case of the operating mode of Cooling or Heating End condition In case of only one compressor 2 HP compressor operation In case of the operating mode other than Cooling or Heating 5 6 CIRCULATING SAVE AMOUNT CONTROL 5...

Page 51: ...between compressor s actual capacity fixed by a compressor and compressor s requirement capacity obtained by cooling or heating requirement capacity from the indoor unit is saved bypassed as a circulating save amount the electromagnetic valve 2 is controlled 5 7 SOLENOID VALVE 2 CONTROL 51 ...

Page 52: ...ways OFF 4 Way valve 5 setting by the operating mode a 4 Way valve 5 setting by the operating mode OPERATING MODE Same performance 4 WAY VALVE 5 CONDITIONS OFF OFF ON OFF b Delay switching When the operating mode is changed to Stop the 4 way valve 5 maintains a start of the operating mode before changing and when the operating mode is other than Stop before three minutes pass it follows the above ...

Page 53: ...sting end condition 2 Defrosting start restrictions 3 Defrosting end condition When any of the following conditions is satisfied defrosting ends Outdoor unit operation mode was switched to other than Heating 20 minutes or longer have elapsed since defrosting stopped Integration of compressor operation time after start of defrosting has exceeded 15 minutes The following error was generated Errors e...

Page 54: ...ompressor turns on and controls oil return 1 The integrated operating time of each compressor has reached 15 minutes or greater 2 Each compressor is stopped When oil return starts the integrated operating time for each compressor is reset 4 Central oil return control When any of the following conditions is satisfied the central oil return solenoid valve SV6 turns on and central oil return control ...

Page 55: ...ng is not performed However the first oil recovery operation after the power is turned on is performed when the integrated operating time in the 1 or more compressors operating state has exceeded 1 hour Compressor 1 ON OFF Indoor Fan 5 11 OIL RECOVERY CONTROL OFF OFF OFF ON ON ON Compressor 2 Compressor 3 A mins 1 min Oil recovery start Oil recovery end When oil recovery error not generated A 4 6 ...

Page 56: ...rosting control starts 2 When 1 minute has elapsed after SV1 and SV2 were turned on and the discharge pressure sensor PH detected value is 3 34MPa or greater compressors 1 2 and 3 are stopped SV1 and SV2 ON and compressors 1 2 and 3 stop are reset and high pressure protection operation is ended by any of the following conditions 1 High pressure SW HP turned on 2 Oil recovery control starts 3 Defro...

Page 57: ...ROL 1 If the following condition was satisfied the pump down control starts When the operation mode is stopped and pump down DIP SW turns OFF ON 2 Pump down flow chart Operation mode STOP Stand by Electronic expansion valve 1 2 500 pulse Compressor 1 3 ON Compressor 1 3 OFF Error DIP SW ON 30sec DIP SW OFF DIP SW ON DIP SW OFF 57 ...

Page 58: ...ases When pump down DIP SW is turned ON OFF When the discharge pressure sensor detects more than 3Mpa Starts receiving pump down signal RB unit 1900 pulse Electric expansion valve Discharge valve ON Suction valve ON Bypass valve ON Indoor fan motor Hi No Yes Finish receiving defrost signal Indoor fan motor OFF Operation stops RB unit Discharge valve OFF Suction valve ON 58 ...

Page 59: ...r Features Set different operating times for each day of the week Set one or two operating spans one or two ON times and one The timer function is designed to bring your room to a comfortable temperature by the set time as a result the unit automatically begins operation before the set time so that the room reaches the desired temperature by the time set on the timer Favorite temperature timer The...

Page 60: ...ime you can set is 5 minutes after the ON time The latest OFF time is 23 55 on the subsequent day 7 Press the SET button This registers the first OFF time for the day completing the WEEKLY 1 settings for that day The display switches to WEEKLY 2 and the day s second ON time begins flashing 8 Repeat the operations described in Steps 4 to 7 to set the sec ond ON and OFF times for the day the WEEKLY ...

Page 61: ...r conditioner will start Otherwise the air conditioner will remain off The day display is replaced by the temperature display The upper time display now shows the current time and the lower time display shows the next scheduled ON or OFF time To Stop Weekly Timer Operation To stop weekly timer while leaving the air conditioner running Press the TIMER MODE button to select NONSTOP OFF TIMER or ON T...

Page 62: ...thing will happen when you press the SET button To proceed press the SET TIME button and enter an appropriate setting When an attempt is made to set only the OFF time Nothing will happen when you press the SET TIME button Press the SET button and amend the entry for the ON time ON and OFF times cannot be set to the same value The OFF time cannot be set earlier than the ON time The WEEKLY 2 setting...

Page 63: ...ST SET TIME TEMP DAY FAN CONTROL MASTER CONTROL 2 1 AUTO DEFROST TEST SET DAY OFF 2 3 TIMER DAY WEEKLY AUTO ON OFF 2 1 AUTO DEFROST TEST TIMER DAY WEEKLY AUTO ON OFF 2 1 AUTO DEFROST TEST Be sure to select an ON time the upper time display Example Clearing the WEEKLY 1 ON OFF times for day 4 Thursday Example Changing the WEEKLY 2 ON setting for day 5 Friday from 14 00 to 15 30 WEEKLY 1 ON WEEKLY 1...

Page 64: ... 2min 2min 2min Tn C The indoor fan operates at the air flow set in the FAN CONTROL mode 4 FAN OPERATION The fan operates continuously with Lo mode 1 COOLING OPERATION Air flow mode is set automatically in accordance with the condition Room temp Set temp as shown at the right Expansion valve Indoor fan motor ON OFF OPEN CLOSE ON ON ON ON ON ON ON ON 30s 30s 5s 3min 120s 5s 3min Indoor fan motor op...

Page 65: ...nit discharge valve OFF RB unit suction valve OFF RB unit by pass valve OFF Electric expansion valve Drain pump Stop pulse Turns ON OFF by the drain pump control function 6 3 1 OPERATION MODE CONTROL 6 3 MASTER CONTROL ON Heat recovery type 6 3 2 AUTO AUTO CHANOVER POSITION Cool or Dry Heat Fan or Start Automatic Operation Signal reception Shunt controller Suction valve OFF Bypass valve ON Electro...

Page 66: ...c expansion Valve Rated electronic expansion valve pulse NO 90 sec mask 6 mins timer set 6 mins timer reset Demand capacity 0 6 mins mask Note4 Cooling operation Shunt controller Suction valve OFF Bypass valve ON Electronic expansion Valve 40 pulses Indoor fan motor S LO Demand capacity signal transmission Shunt controller Bypass valve ON Electronic expansion Valve 40 pulses Indoor fan motor S LO ...

Page 67: ...ration is performed in accordance with Room temperature control to be described later 4 When Refrigerant circulation stopped by Cooling or Heating Room temperature adjustment continues for 6 minutes or more the room temperature monitoring of 2 above is performed 5 In the state of room temperature watching stated in the above 4 the indoor unit fan motor shall be S LO C C C 6 When Set temperature wa...

Page 68: ...ture is less than the set temperature Ts 2 C at the start of operation or changing into AUTO or after the room temperature reaches the condition Room temp Set temp Ts 2 C the unit is changed into the DRY mode Room Temp Set Temp Ts 2 C Yes Yes Yes Room temp control 3 min ST Protection Room temperature control NO Operation flow chart START Room temp Ts 2 C Room temp Ts 1 C Room temp Ts 2 C COOLING O...

Page 69: ...et the temperature higher than the current room temperature If it is set to a lower temperature heating will not start 2 For about 3 5 minutes after the start of heating the fan will operate very slowly and then switch to the selected fan setting This period allows the indoor unit s heat exchanger to warm up before emitting warm air 3 During defrosting the OPERATION indicator lamp flashes 3 sec ON...

Page 70: ...osition the fan operates alone to circulate air The room temperature will not be changed 2 Operates at the air flow set in the FAN CONTROL mode 3 When only the FAN mode is being used setting to AUTO is equivalent to set it at MED 70 ...

Page 71: ...rection flap or RIGHT LEFT air direction louvers Attempting to move them manually could result in improper operation in this case stop oper ation and restart The flaps should begin to operate properly again During use of the Cooling mode do not set the UP DOWN air direction flap in the 4 position for long periods of time since water vapor may condense near the outlet port and drops of water may dr...

Page 72: ...ration 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 MASTER CONTROL FAN CONTROL TIMER MODE TEMP DAY SET TIME CLOCK ADJUST START STOP SET DAY OFF ZONE ENERGY SAVE 2 SWING OPERATION Instructions relating to the i...

Page 73: ... TYPE Press the HORIZONTAL SWING button for more than two seconds The remote controller s HORIZONTAL SWING lamp orange and indoor unit s SWING indicator lamp HORIZONTAL SWING orange will light up In this mode the RIGHT LEFT air direction louvers will swing automatically to direct the airflow both right and left To Stop Horizontal airflow SWING Operation Press the HORIZONTAL SWING button for more t...

Page 74: ... reset later the timer display flashes on 3 sec off 1 sec 1 When refrigerant circulation starts the drain pump starts simultaneously 2 The drain pump operates continuously for 3 minutes after the refrigerant circulation stopped 3 When the refrigerant circulation stops by the Indoor heat exchanger de icing function the drain pump is turned off in 1 hour after the compressor stops 4 When the water l...

Page 75: ...7 WIRING DIAGRAMS MODELS AB12 AB14 AB18 AB24 RB UNIT For Heat Recovery only 7 1 UNIVERSAL FLOOR CEILING TYPE 75 ...

Page 76: ...MODELS AB30 AB36 AB45 AB54 RB UNIT For Heat Recovery only 7 2 LARGE CEILING TYPE 76 ...

Page 77: ...MODELS AR7 AR9 AR12 AR14 AR18 RB UNIT For Heat Recovery only 7 3 COMPACT DUCT TYPE 77 ...

Page 78: ...MODELS AR25 AR30 AR36 AR45 RB UNIT For Heat Recovery only 7 4 LOW STATIC PRESSURE DUCT TYPE 78 ...

Page 79: ...MODELS AR36H AR45H AR60H RB For Heat Recovery only UNIT 7 5 HIGH STATIC PRESSURE DUCT TYPE 79 ...

Page 80: ...MODELS AU7 AU9 AU12 AU14 AU18 RB UNIT For Heat Recovery only 7 6 COMPACT CASSETTE TYPE 80 ...

Page 81: ...MODELS AU20 AU25 AU30 AU36 AU45 AU54 RB UNIT For Heat Recovery only 7 7 NEW CASSETTE TYPE 81 ...

Page 82: ...MODELS 7 8 WALL MOUNTED TYPE AS14 20 24 30 82 ...

Page 83: ...MODEL AOY90 7 9 OUTDOOR UNIT 83 ...

Page 84: ...ATION FACTOR INDICATOR LAMP FLASH TIME SEC Operation lamp red Timer lamp green Operation lamp red Timer lamp green Timer lamp green Operation lamp red Test operation Power failure 1 Auto restart enable DIP SW 2 4 OFF 2 Auto restart disable DIP SW 2 4 ON Defrost operation 3 Heating operation Note Display lamps light on the front panel of the indoor unit 1 The power is failed during timer operation ...

Page 85: ...exchanger outlet temperature thermistor error PCB fault Drain error Float switch operation The float switch operates and if there is no recovery within 3 minutes Inside of the hose stuffed drain pump float switch and PCB fault Serial communication error between air conditioner unit and wired remote controller PCB fault When the indoor fan motor rotation is differ from the required rotation on the ...

Page 86: ... TIMER LAMP LAMP SWING OPERATION LAMP TIMER LAMP SWING LAMP OPERATION LAMP TIMER LAMP SWING LAMP Drain error Float switch operation The float switch oper ates and if there is no Five quick flashes repeated 0 1 sec ON OFF repeated Serial commu nication error between air conditioner unit and wired remote controller Six quick flashes repeated 0 1 sec ON OFF repeated Indoor fan error 0 1 sec ON OFF re...

Page 87: ...or display Error contents OPERATION LAMP TIMER LAMP LAMP SWING Three quick flashes repeated 0 1 sec ON OFF repeated Outdoor unit error Three quick flashes repeated 0 1 sec 0 1 sec 0 5 sec 0 5 sec 5 sec 87 ...

Page 88: ...ge capacity STEP3 Heat exchanger usage capacity STEP4 Heat exchanger usage capacity STEP5 Heat exchanger usage capacity STEP6 Oil recovery Defrosting Test operation High pressure Medium pressure by pass High pressure Low pressure by pass Display Method Lighted continuously 0 5sec ON 0 5sec OFF flashing Flashing times 1 2 3 4 5 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 1 2 8 2 OUTDOOR UNIT 8 2 1 NORMAL OPERATI...

Page 89: ... 3 4 6 7 1 Power frequency faulty Communication error Node setting error 2 8 9 Compressor1 error Compressor2 error Compressor3 error Discharge temprature1 error Discharge temprature2 error Discharge temprature3 error High pressure error Low pressure error Pump down error Discharge temperature thermistor1 error Discharge temperature thermistor2 error Discharge temperature thermistor3 error Heat exc...

Page 90: ...Y SAVE MASTER CONTROL FAN CONTROL TIMER MODE TEMP DAY SET TIME CLOCK ADJUST START STOP SET DAY OFF ZONE ENERGY SAVE COOL CLOCK C NON STOP When EE EE blinks at the current time display there is an error inside the air conditioner If the SET TIME button and SET TEMP DAY button are pressed simultaneously for more than three seconds the self diagnosis check will start and the error contents will be di...

Page 91: ...n addition to removing noise sources 2 Replace indoor unit control PC board Model information not memorized or erased for some reason 1 Effect of extraneous noise 2 Indoor unit control PC board faulty Model data error 03 Microcomputer error 1 Generation condition Indoor unit control PC board detected frequency outside operating 2 Corresponding operation 1 Relevant indoor unit stopped not started 2...

Page 92: ...ition Thermistor detection value other than short or open 0A Indoor unit heat exchanger ther mistor error middle error 1 Check for loose or dislodged heat exchanger thermistor middle connector 2 Check resistance of heat exchanger thermistor middle If abnormal replace thermistor 1 Connector connection faulty 2 Heat exchanger thermistor middle faulty 2 Check resistance of heat exchanger thermistor i...

Page 93: ...reater relative to target speed 2 Corresponding operation Indoor fan stopped error display to indoor unit LED error output to communication bus line 3 Reset condition Reset by turning power off 13 Indoor unit fan error 1 Check for loose or dislodged blower temperature thermistor connector 2 Check resistance of blower temperature thermistor If abnormal replace thermistor 1 Connector connection faul...

Page 94: ...Transmission error 20 Node setting error 1 When power turned OFF then turned back ON 1 If error not generated again PC board is normal Therefore remove noise sources near outdoor unit 2 If error generated again check following in addition to removing noise sources 2 Check if communication line connected to each indoor unit Check for open communication line and loose wiring 3 Check insertion of ind...

Page 95: ...oor unit communication PC board Error generated at outdoor unit in same refrigerant system 21 Parallel commu nication error 1 When power turned off then turned back on 1 If error not generated again PC board is normal Therefore remove noise sources near indoor unit 2 If error generated again check following in addition to removing noise sources 2 Check indoor communication PC board insertion 3 Rep...

Page 96: ...del information not memorized or erased for some reason 1 Effect of extraneous noise 2 Outdoor unit control PC board faulty Model data error 03 Communication error 1 Generation condition Outdoor unit control PC board detected frequency outside of rating 2 Corresponding operation 1 All compressors stopped not started 2 Error display to outdoor unit LED and error output to communication bus line 3 R...

Page 97: ...oad operation Check High pressure error Motor protector reset at 61 C 9 C 8 Check compressor If faulty replace compressor 1 Discharge temperature sensor THD1 faulty 3 Outdoor unit control PC board faulty 4 Magnetic contactor 1 faulty 5 Refrigerant level low 6 After 2 hours 30 minutes have elapsed since error was displayed error detection is performed again and error is not displayed 7 Compressor m...

Page 98: ... error occurred at one or more of three compressors Error reset by turning power off 2 Compressor power relay 2 faulty 0A Compressor 3 error 1 Check for loose or dislodged discharge temperature sensor THD3 sensor wiring and check sensor resistance If abnormal replace sensor 2 Check compressor power relay 3 If abnormal replace power relay 3 Check CN34 compressor 3 12V voltage output on outdoor unit...

Page 99: ... thermistor 1 Connector contact faulty 1 Generation condition Thermistor short or open detected 2 Corresponding operation 1 Compressor 2 stop 2 Error display to outdoor unit LED and error output to communication bus line 3 Reset condition Thermistor detection value other than short or open Compressor continues to operate for 5 minutes or longer and detection is performed during operation 2 Dischar...

Page 100: ...dition Thermistor short or open detected 2 Corresponding operation 1 All Compressors stopped For suction temperature thermistor error compressors not stopped 2 Error display to outdoor unit LED and error output to communication bus line For suction temperature thermistor error error display to outdoor unit LED only 3 Reset condition Thermistor detection value other than short or open 1 Check for l...

Page 101: ... Tester Check if output voltage is present between pins 3 and 4 of CN52 and CN53 1 time in 10 secs Needle deflects Voltage output 1 time in 10 seconds 250msec 3 Check output voltage 1 0 0 1V between connectors 3 and 4 of OIL LV SEN H connected to CN52 and OIL LV SEN L connected to CN53 in tester diode mode If output voltage is abnormal replace oil sensor Connect tester plus terminal to 3 and minus...

Page 102: ...all indoor units 3 Check indoor units power supply 4 Check insertion of indoor unit communication PC board and outdoor unit communication PC board 5 1 If communication error generated after outdoor unit circuit board error generated replace PC boards in following order and check operation 1 Outdoor unit communication PC board 2 Outdoor unit control PC board 2 If some indoor units in same refrigera...

Page 103: ...loose or dislodged discharge temperature sensor THD1 wiring and check THD1 resistance If abnormal replace sensor 4 Check operation and coil resistance of following electronic expansion valve If abnormal replace electronic expansion valve Coil resistance measurement points Red white red orange brown yellow brown blue 1 Outdoor unit electronic expansion valve EEV1 and EEV2 Coil resistance 192 19 ohm...

Page 104: ...loose or dislodged discharge temperature sensor THD2 wiring and check THD2 resistance If abnormal replace sensor 4 Check operation and coil resistance of following electronic expansion valve If abnormal replace electronic expansion valve Coil resistance measurement points Red white red orange brown yellow brown blue 1 Outdoor unit electronic expansion valve EEV1 and EEV2 Coil resistance 192 19 ohm...

Page 105: ...loose or dislodged discharge temperature sensor THD3 wiring and check THD3 resistance If abnormal replace sensor 4 Check operation and coil resistance of following electronic expansion valve If abnormal replace electronic expansion valve Coil resistance measurement points Red white red orange brown yellow brown blue 1 Outdoor unit electronic expansion valve EEV1 and EEV2 Coil resistance 192 19 ohm...

Page 106: ...If pressure SW faulty replace SW 2 Outdoor unit short cycle 3 Outdoor heat exchanger dirty or clogged with foreign matter 4 Outdoor fan motor faulty 5 Pressure SW faulty 6 Remove obstruction 7 Clean filter 8 Check indoor fan motor operation If fan motor faulty replace motor 9 Check operation and coil resistance of following electronic expansion valve If faulty replace electronic expansion valve Co...

Page 107: ...c expansion valve If faulty replace electronic expansion valve Coil resistance measurement points Red white red orange brown yellow brown blue 1 Outdoor unit electronic expansion valve EEV1 and EEV2 Coil resistance 192 19 ohms 2 Indoor units electronic expansion valve EEV Coil resistance 150 15 ohms 8 Check operation of following solenoid valves If operation faulty replace solenoid valve Cooling o...

Page 108: ...ain PC board is normal Therefore remove noise sources near outdoor unit 2 If error generated again check following in addition to removing noise sources 1 Affect of extraneous noise See indoor unit troubleshooting Indoor unit faulty 2 Check outdoor unit communication PC board insertion 2 Outdoor unit communication PC board insertion faulty Node setting error 1 Generation condition Outdoor unit com...

Page 109: ... 1 After reset key on transmission adapter control PC board pressed or power turned on again 1 If error not generated again PC board is normal Therefore remove noise sources near communication adapter 2 If error generated again perform following in addition to removing noise sources 2 Transmission adapter control PC board faulty 2 Replace transmission adapter control PC board 1 Generation conditio...

Page 110: ...ion Communication between transmission adapter control PC board and transmission adapter communication PC board not performed normally 2 Corresponding operation 1 Error display Only error code display operation is possible Other operations are ineffective 1 Effect of extraneous noise 1 After RESET key on transmission adapter control PC board pressed or power turned on again 1 If error not generate...

Page 111: ...pter control board pressed or power turned on again 1 If error not generated again PC board is normal Therefore remove noise sources near central remote controller 2 If error generated again check following in addition to removing noise sources 1 Effect of extraneous noise ERROR CODE Connection error 2 Communication line between transmission adapter and control panel connection faulty or line open...

Page 112: ...lowing order and check operation 1 2 Transmission adapter communication board Transmission adapter control board 3 Control panel PC board 3 PC board faulty 3 Replace PC boards in following order and check operation 1 2 3 Transmission adapter communication Transmission adapter control PC board Control panel PC board 1F Transmission error 1 Generation condition Communication between indoor unit and ...

Page 113: ...automatically check following 2 Corresponding operation Error display Only error code display operation is possible Other operations are ineffective 1 2 After ACL key pressed or power turned on again 1 If error not generated again PC board is normal Therefore remove noise sources near control panel 2 If error generated again check follow ing in addition to removing noise sources 2 Power off or pow...

Page 114: ...s will indicate a value near zero Communication faulty between indoor unit and remote controller wired Open circuit When 1 2 2 3 and 3 1 at the indoor unit terminal board Remote Control are shorted the resistance across red white white black and black red does not indicate a value near zero Remote control group control interior communication line faulty Open circuit Check the wiring color and wiri...

Page 115: ...ery operation is performed every 6 hours without regard to the operating state of at a 3 seconds ON 1 second OFF cycle Check the resistance value of the capacitor If normal the resistance will show a value of several hundred kilohms Indoor fan capacitor faulty Indoor fan motor faulty Indoor unit thermistor faulty AB30 54 large ceiling suspended type are error display Others are normal display Chec...

Page 116: ...title Check method Error state check method Remarks cation error Error display Communi cation error Cause Check each outdoor unit power supply terminal board Power voltage and T N 220 240V Outdoor unit is leaking shorted Circuit to which a voltage is applied when energized is leaking electricity Trip the outdoor unit circuit breaker immediately after setting the circuit breaker to ON The resistanc...

Page 117: ... unit control PCB CN6 across terminals 2 4 but the indoor unit discharge temperature does not become cool Outdoor unit electronic expansion valve EEV1 EEV2 opening 1 Fully closed state Not opened When a voltage AC220V is applied to the coil of the heat exchange 4 way valve 4WV2 4WV3 4WV4 and to the heat exchange solenoid valve SV7 SV8 corresponding to the electronic expansion valve the electronic ...

Page 118: ...Error display Outdoor unit error Error display Communi cation error Error display Outdoor unit error Normal after power reset Indoor outdoor unit communication line faulty When communication terminal board Trans Mission terminals 1 2 of one indoor unit was shorted the resistance across communication terminal board Trans Mission terminals 1 2 of all the indoor units does not indicate a value near z...

Page 119: ...When EEV1 and 2 are fully closed during the cooling operation the high pressure may rise abnormally and the gas may become insufficient and both the high pressure and low pressure may drop Indoor unit makes an abnormal sound Ball valve opening faulty Turn the knob of the liquid pipe discharge pipe and suction pipe clockwise When the ball valve is fully open the knob of the liquid pipe and discharg...

Page 120: ...rror display Outdoor unit error Error display Reverse phase error Error display Outdoor unit error Compressor faulty The compressor operates normally but the high pressure does not rise Reverse phase The compressor wiring is red R white S and black T Error display Communi cation error Error display Communi cation error Error display Communi cation error Normal after power reset Outdoor unit commun...

Page 121: ...r than relevant indoor unit does not perform heating Indoor unit electronic expansion valve opening faulty Full open open excessively Heating operation When the relevant indoor unit performs the heating operation or another indoor unit performs the heating operation the indoor unit discharge temperature does not become high and the high pressure becomes low Indoor unit electronic expansion valve o...

Page 122: ...CB Cannot be specified No display or error display Cannot be specified Cannot be specified Indoor unit fan is not operating System does not cool heat Outdoor control PCB faulty The symptom has many branches depending on the error contents and there is no effective check method When the PCB or connection wiring is faulty operation can often be restored by replacing the PCB Normal display Normal dis...

Page 123: ...ng switching motor check the voltage across the CN11 terminals 1 2 Discharge temperature is high Liquid injection solenoid valve SV1 faulty When a voltage AC220V is applied to CN7 the liquid injection solenoid valve outlet pipe is not cold When SV1 is faulty the discharge gas temperature may rise and a discharge temperature error may be generated Coil resistance 1200 1500 High pressure gas bypass ...

Page 124: ...12 5 91 0 15 80 3 17 5 71 0 20 62 9 22 5 55 9 25 49 7 27 5 44 3 30 39 6 Room tempera ture C Resistance value k 32 5 35 4 35 31 7 37 5 28 5 40 25 6 42 5 23 1 45 20 8 47 5 18 8 50 17 1 52 5 55 57 5 60 15 5 14 1 12 8 11 6 3 Indoor heat exchanger outlet temperature thermistor Room tempera ture C Resistance value k 50 384 8 40 182 8 30 92 3 20 49 2 10 27 5 5 20 9 0 16 1 2 5 14 1 5 12 4 7 5 11 0 10 9 7 ...

Page 125: ... C Resistance value k 40 2183 30 1076 20 561 10 307 0 176 5 0 135 10 105 12 5 92 4 15 81 8 17 5 72 6 20 64 5 22 5 57 5 25 51 3 Pipe tempera ture C Resistance value k 27 5 45 8 30 41 1 32 5 36 9 35 33 1 37 5 29 8 40 26 9 50 18 1 60 12 5 70 8 8 80 6 3 90 4 6 100 3 4 120 2 0 Pipe tempera ture C Resistance value k 140 1 2 161 0 8 180 0 5 3 Outdoor temperature thermistor Pipe tempera ture C Resistance ...

Page 126: ...ked The discharge valve will be ON during heating operation the suction valve will be ON during cooling operation and the bypass valve will be ON during stopping 8 5 5 OTHERS 1 Solving the problem is nesessary since following can be occured Gas leakage capacity declining cause by gas shortage Dirt from the filter and the EEV Capacity declining by mis setting of the indoor unit capacity Unfit of th...

Page 127: ...open 12 OFF OFF OFF ON ON open open 2 Heating operation Heat exchange 4 way valve in the energized mode capacity HP 4WV2 4WV3 4WV4 SV7 SV8 EEV1 EEV2 CN18 CN19 CN20 CN13 CN14 CN29 CN30 2 ON ON ON ON OFF open enclosed 4 ON ON ON OFF ON open enclosed 6 ON ON ON OFF OFF enclosed open 8 ON ON ON ON OFF open open 10 ON ON ON OFF ON open open 12 ON ON ON ON ON open open Electromagnetic valve in Electroni...

Page 128: ... C O M P 2 C O M P 3 C O M P 1 C O N T R O L B O X F R O N T O U T D O O RU N I TC O N T R O LB O X I N T E R N A LL A Y O U T P O W E RR E L A Y3C A P A C I T O R1 O U T D O O R P C B P O W E R R E L A Y2 C O M M U N I C A T I O N P O W E RR E L A Y1 P C B C A P A C I T O R2 M A G N E T I C R E L A Y1 M A G N E T I C M A G N E T I C P O W E R T R A N SM I S S I O N R E L A Y3 R E L A Y2 T E R M I...

Page 129: ...fic gravity of its vapor is larger than that of air and should it leak in an air tight room it may stay at a low level and cause oxy gen starvation accident cause a poisonous gas to occur so be sure to handle it only in a well ventilated area SELECTION OF REFRIGERANT As there is no appropriate mono constituent refriger ant to replace R22 which has been used for conven tional air conditioners the m...

Page 130: ...the refrigerant model when replacing minutes after opening the cap when replacing COMPRESSOR Use better grade of material for sliding parts for securing good lubrication of sliding part as HFC refrigerant does not contain chloride Review insulating materials Increase pressure resistance strength CAUTION During storage due care must be taken so that foreign matters such as dust and water do not ent...

Page 131: ...ncreased CAUTION Complete welding within one hour after the package of dryer is opened PRESSURE SWITCH Adopt for some models for better reliability CAUTION Check if the valve is suitable for the refrigerant model when replacing OTHER PIPING Review the water contaminants controlling level Review thickness of pipes CAUTION During storage due care must be taken so that foreign matters such as dust an...

Page 132: ... from forming in the pipe silver alloy brazing work by turning the air out of the pipe and preventing the inside combustion Safety charger Fig 4 13 It is always compulsory to change the liquid because R407C is a mixed refrigerant and there is some fear that a mixing ratio changes In order to avoid the refrigerant from returning to the compressor in a liquid state the refrigerant can be charged ins...

Page 133: ...nt and charge the spec ified amount of new refrigerant 2 Never use the existing refrigerant piping The existing piping used for R22 cannot be used for the cycle of HFC series refrigerant as the conventional min eral oils are adhering to the piping Due to the deteriorated mineral oils compressor may be damaged Therefore basically use a brand new piping However in case of the existing piping buried ...

Page 134: ...Models AOY90TPAMF 134 10 DISASSEMBLY ILLUSTRATION ...

Page 135: ...Models AOY90TPAMF 135 ...

Page 136: ...Models AOY90TPAMF 136 829 5 829 8 595 678 187 344 621 829 13 829 1 596 16 2 16 1 149 1 163 2 181 4 149 344 2 829 14 737 829 7 829 9 344 2 343 4 163 2 181 4 163 2 181 4 ...

Page 137: ...Models AOY90TPAMF 137 ...

Page 138: ... 138 910 1 760 295 3 469 468 484 167 267 674 468 108 273 457 295 2 295 1 760 1 457 6 457 7 568 2 212 486 568 1 327 2 154 29 327 1 450 1 457 5 457 4 167 1 ...

Page 139: ...139 464 468 674 272 457 7 457 6 154 368 457 186 108 469 468 267 909 1 760 2 760 910 1 295 5 295 6 295 3 295 2 295 4 295 1 167 2 327 4 564 5 167 1 267 3 98 155 212 155 568 1 568 2 457 4 457 5 327 3 167 3 ...

Page 140: ...Models ABY12TFAMF ABY14TFAMF 509 653 2 173 365 1 870 1 365 2 365 2 653 2 365 1 870 1 580 422 508 174 923 ABY18TFAMF ABY24TFAMF 140 ...

Page 141: ...Models ABY12TFAMF ABY14TFAMF 470 870 2 764 577 439 160 127 196 1 574 2 418 124 553 588 2 138 187 124 574 1 552 588 1 68 108 68 578 ABY18TFAMF ABY24TFAMF 141 ...

Page 142: ...Models ABY12TFAMF ABY14TFAMF 755 653 1 581 338 67 56 56 164 109 126 ABY18TFAMF ABY24TFAMF 142 ...

Page 143: ...Models ABY12TFAMF ABY14TFAMF 416 8 1 417 385 868 771 488 472 443 473 ABY18TFAMF ABY24TFAMF 143 ...

Page 144: ...146 772 329 147 OPTIONAL PARTS 146 772 OPTIONAL PARTS 234 1 431 147 329 735 144 Models ABY12TFAMF ABY14TFAMF ABY18TFAMF ABY24TFAMF ABY18TFAMF ABY24TFAMF ...

Page 145: ...Models ABY12TFAMF ABY14TFAMF 514 731 2 187 34 236 824 3 628 187 629 875 815 381 36 2 234 625 381 195 223 982 422 628 ABY18TFAMF ABY24TFAMF 599 145 ...

Page 146: ...Models ABY12TFAMF ABY14TFAMF 684 876 2 558 555 554 520 407 408 503 876 1 521 505 505 505 505 500 506 361 2 361 2 361 2 361 2 361 3 361 3 361 3 3 3 3 3 502 321 320 361 ABY18TFAMF ABY24TFAMF 146 ...

Page 147: ...Models ABY12TFAMF ABY14TFAMF 509 653 2 173 365 1 870 1 365 2 365 2 653 2 365 1 870 1 580 422 508 174 923 ABY18TFAMF ABY24TFAMF 140 ...

Page 148: ...Models ABY12TFAMF ABY14TFAMF 470 870 2 764 577 439 160 127 196 1 574 2 418 124 553 588 2 138 187 124 574 1 552 588 1 68 108 68 578 ABY18TFAMF ABY24TFAMF 141 ...

Page 149: ...Models ABY12TFAMF ABY14TFAMF 755 653 1 581 338 67 56 56 164 109 126 ABY18TFAMF ABY24TFAMF 142 ...

Page 150: ...Models ABY12TFAMF ABY14TFAMF 416 8 1 417 385 868 771 488 472 443 473 ABY18TFAMF ABY24TFAMF 143 ...

Page 151: ...146 772 329 147 OPTIONAL PARTS 146 772 OPTIONAL PARTS 234 1 431 147 329 735 144 Models ABY12TFAMF ABY14TFAMF ABY18TFAMF ABY24TFAMF ABY18TFAMF ABY24TFAMF ...

Page 152: ...Models ABY12TFAMF ABY14TFAMF 514 731 2 187 34 236 824 3 628 187 629 875 815 381 36 2 234 625 381 195 223 982 422 628 ABY18TFAMF ABY24TFAMF 599 145 ...

Page 153: ...Models ABY12TFAMF ABY14TFAMF 684 876 2 558 555 554 520 407 408 503 876 1 521 505 505 505 505 500 506 361 2 361 2 361 2 361 2 361 3 361 3 361 3 3 3 3 3 502 321 320 361 ABY18TFAMF ABY24TFAMF 146 ...

Page 154: ...2 345 1 761 387 174 181 403 122 286 384 56 755 223 379 109 108 74 448 345 2 8 386 174 383 762 286 122 403 876 1 684 138 752 435 505 3 228 229 580 408 407 506 240 1 361 321 146 396 160 63 868 472 388 164 126 338 2 338 1 434 ABY54TFAMF 234 1 147 ...

Page 155: ...Models ABY30TFAMF ABY36TFAMF ABY45TFAMF 407 876 1 505 408 435 434 506 3 ABY54TFAMF 148 ...

Page 156: ...Models ABY30TFAMF ABY36TFAMF ABY45TFAMF 387 160 91 91 91 321 386 361 ABY54TFAMF 149 ...

Page 157: ...Models ABY30TFAMF ABY36TFAMF ABY45TFAMF 63 876 2 385 868 763 227 321 387 436 424 684 438 ABY54TFAMF 150 ...

Page 158: ...Models ABY30TFAMF ABY36TFAMF ABY45TFAMF ABY54TFAMF 195 253 2 34 253 4 253 5 253 6 253 7 234 185 1 599 236 1 187 472 625 381 4 380 186 233 287 982 2 982 1 815 1 875 253 1 253 2 448 151 ...

Page 159: ...484 127 798 835 836 482 834 196 470 965 967 2 164 465 478 797 479 138 147 232 160 411 146 395 474 476 3 476 2 476 1 475 399 475 469 468 457 488 301 430 234 411 964 Models AUY 7TFAMF AUY 9TFAMF AUY12TFAMF AUY14TFAMF AUY18TFAMF 163 21 184 1 918 234 431 152 ...

Page 160: ...34 824 3 381 628 381 381 628 815 381 236 875 989 1 989 2 287 185 514 223 Model AUY 7 TFAMF AUY 9 TFAMF AUY 12 TFAMF AUY 14 TFAMF AUY 18 TFAMF 153 ...

Page 161: ...417 876 2 416 392 417 226 165 694 691 690 705 690 692 385 763 705 692 690 196 392 690 692 700 758 691 777 710 776 711 2 711 1 93 776 416 Models AUY 7TFAMF AUY 9TFAMF AUY12TFAMF AUY14TFAMF AUY18TFAMF 154 ...

Page 162: ...Models AUY20TFAMF AUY25TFAMF AUY30TFAMF AUY36TFAMF AUY45TFAMF AUY54TFAMF 155 ...

Page 163: ...Models AUY20TFAMF AUY25TFAMF AUY30TFAMF AUY36TFAMF AUY45TFAMF AUY54TFAMF 918 918 918 163 2 184 1 652 1 235 431 147 232 156 ...

Page 164: ...Models AUY25TLAMA AUY30TLAMA AUY36TLAMA AUY45TLAMA 157 ...

Page 165: ...Models ARY25TLAMA ARY30TLAMA ARY36TLAMA ARY45TLAMA 75 195 1 64 173 108 958 959 160 764 146 235 735 957 184 1 329 4 394 74 955 173 324 924 69 158 ...

Page 166: ...Models ARY25TLAMA ARY30TLAMA ARY36TLAMA ARY45TLAMA 57 56 109 67 338 164 67 57 56 126 109 234 143 138 108 159 ...

Page 167: ...Models ARY25TFAMF ARY30TFAMF ARY36TFAMF ARY45TFAMF 160 ...

Page 168: ...Model ARY7TFAMF ARY9TFAMF 431 234 918 588 1 163 2 184 1 161 146 567 762 174 63 174 244 381 4 625 762 174 287 74 464 588 2 232 196 2 147 160 ...

Page 169: ... 162 Model ARY7TFAMF ARY9TFAMF ...

Page 170: ...Model ARY7TFAMF ARY9TFAMF 163 875 ...

Page 171: ...Model ARY12TFAMF ARY14TFAMF ARY18TFAMF 164 431 918 918 163 2 184 1 147 ...

Page 172: ...Model ARY12TFAMF ARY14TFAMF ARY18TFAMF 165 ...

Page 173: ...Model ARY12TFAMF ARY14TFAMF ARY18TFAMF 166 ...

Page 174: ...275 108 160 253 255 146 924 173 468 254 255 234 238 514 277 495 287 173 273 238 324 625 195 69 185 1 64 431 918 Model ARY36TFAMF ARY45TFAMF ARY60TFAMF 652 1 163 2 184 1 167 ...

Page 175: ...422 126 477 109 477 477 109 164 422 10 75 45 117 3 338 1 338 2 56 2 477 56 1 Model ARY36TFAMF ARY45TFAMF ARY60TFAMF 168 ...

Page 176: ...824 5 195 381 236 875 824 846 430 628 823 223 466 422 982 1 982 2 34 815 77 270 Model ARY36TFBMF ARY45TFBMF ARY60TFBMF 169 ...

Page 177: ...MF ARY30TFAMF 170 34 686 223 815 685 685 385 273 759 776 976 850 761 93 146 394 679 925 767 1 67 2 164 67 2 325 109 122 652 1 184 1 326 122 958 91 320 321 755 683 756 960 127 251 684 876 2 876 1 69 762 108 401 767 2 963 777 63 ...

Page 178: ...Model ASY20TFAMF ASY24TFAMF ARY30TFAMF 171 684 558 554 555 559 557 556 91 320 361 960 321 876 2 ...

Page 179: ...Model ASY20TFAMF ASY24TFAMF ARY30TFAMF 172 91 876 1 407 1 407 2 407 3 69 ...

Page 180: ...829 13 JOINT PIPE M 9365017005 CAPACITOR ELEC 0301192589 829 2 JOINT PIPE SUB COOL 9365858004 CAPACITOR ELEC 0301196822 LABEL R407C 9362389006 CAPACITOR PLASTIC 0300304099 LED 0000813259 CAPACITOR PLASTIC 0301052098 381 2 LOCKING SPACER 0600035020 178 2 CAPILLARY HLD RUBBER 313394274808 381 3 LOCKING SPACER 0600118051 CERAMIC RESONETOR 9701261031 791 MAGNETIC RELAY 9363277005 519 2 CHECK VALVE 935...

Page 181: ...5009 167 SEPARATE WALL R 9361696006 164 SEPARATE WALL UPPER 9361693005 762 SIDE PANEL L PAINTED 9361705029 761 SIDE PANEL R PAINTED 9361706026 599 SIGNAL PCB ASSY 9703728013 108 SLEEVE A 9364085005 SOCKET PWB 0500296033 343 1 SOLENOID 9703888014 343 2 SOLENOID 9703888021 343 3 SOLENOID 9703888038 343 4 SOLENOID 9703888045 343 5 SOLENOID 9703888052 457 SOLENOID 9703889011 457 1 SOLENOID 9703889028 ...

Page 182: ...851005 760 2 INSULATION PIPE H 9365853009 568 1 JNT WIRE SLN VLV A 9365848005 9365848005 568 2 JNT WIRE SLN VLV A 9365849019 9365849019 564 5 LIQUID PIPE ASSY 9362182003 MANUAL INSTALLATION 9366247012 468 NUT A M8 9356998009 9356998009 PACKING CASE CARTON 9301094015 9301094015 674 PROJECTION BOLT 9356901023 9356901023 273 REAR PANEL 9362191005 273 REAR PANEL 9362721004 295 1 REDUCER A 9364430003 9...

Page 183: ... 313361271706 313361271706 313361271706 313361271706 313361271706 313361271706 195 CLAMP 313361275805 313361275805 313361275805 313361275805 313361275805 313361275805 313361275805 313361275805 196 2 CLAMP 313035356905 313035356905 313035356905 313035356905 313035356905 313035356905 313035356905 313035356905 196 1 CLAMP 312300787605 312300787605 312300787605 312300787605 312300787605 312300787605 3...

Page 184: ...9699002 9359699002 731 2 HPLDER GUIDE RAIL 0600241018 0600241018 0600241018 0600241018 181 HOLE COVER 9359691006 9359691006 9359691006 9359691006 HYBRID IC 0100335019 0100335019 0100335019 0100335019 0100335019 0100335019 0100335019 0100335019 IC 0100462104 0100462104 0100462104 0100462104 0100462104 0100462104 0100462104 0100462104 IC 0101461120 0101461120 0101461120 0101461120 0101461120 0101461...

Page 185: ...359859000 9359859000 PACKING PAD TOP L 9359857006 9359857006 9359857006 9359857006 PACKING PAD TOP R 9359855002 9359855002 9359855002 9359855002 771 PANEL ASSY 9359076018 9359076018 9359076018 9359076018 386 PANEL L 9359685005 9359685005 9359685005 9359685005 387 PANEL R 9359683001 9359683001 9359683001 9359683001 868 PCB HOLDER 9358547007 9358547007 9358547007 9358547007 868 PCB HOLDER 9359736004...

Page 186: ...3015 9701393015 TEMPLATE 9359107002 9359107002 9359107002 9359107002 TEMPLATE 9360022004 9360022004 9360022004 9360022004 815 TERMINAL 7P 9703403040 9703403040 9703403040 9703403040 9703403040 9703403040 9703403040 9703403040 253 TERMISTOR PIPE 9704054012 9704054012 9704054012 9704054012 652 1 THERM HOLDER PIPE 313806262805 313806262805 313806262805 313806262805 313806262805 313806262805 313806262...

Page 187: ... 9359823018 9359823018 9359823018 9359823018 897 COUPLING PIPE A ASSY 9366207009 898 COUPLING PIPE B ASSY 9363155006 835 CUSHION RUBBER PUMP 9362777001 9362777001 9362777001 835 CUSHION A FOR PUMP 9352211003 9352211003 9352211003 9352211003 9352211003 836 CUSHION B FOR PUMP 9356084016 9356084016 9356084016 9356084016 9356084016 DECORATION PLATE 9365652008 9365652008 9365652008 DIODE 0000353120 000...

Page 188: ... MOTOR HOLDER 9362765008 9362765008 9362765008 NETWORK CR ABSORBER 0301241072 0301241072 0301241072 0301241072 0301241072 0301241072 0301241072 0301241072 568 NOISE INSULATION 9363143003 9363143003 9363143003 232 OUTLET PIPE EVA ASSY 9366171003 9366171003 9366171003 9366171003 9366171003 232 OUTLET PIPE EVA ASSY 9366217008 9366217008 PACKING CASE BOTTOM 9359984009 9359984009 9359984009 9359984009 ...

Page 189: ...00450016 9700450016 9700450016 9700450016 9700450016 9700450016 SWITCH ROTARY 9701694013 9701694013 9701694013 9701694013 9701694013 9701694013 9701694013 9701694013 SWITCH SLIDE 9701393015 9701393015 9701393015 9701393015 9701393015 9701393015 9701393015 9701393015 TEMPLATE 9360256003 9360256003 9360256003 9360256003 9360256003 TEMPLATE 9363173000 9363173000 9363173000 541 TERMINAL PLATE 93636420...

Page 190: ...6221067 DIODE 0000625036 0000625036 0000625036 PACKING INNER TOP 9360318015 9360318015 9360318015 DIODE 0000746519 0000746519 0000746519 PACKING PAD A 9365611005 9365611005 9365611005 DIODE 0000906500 0000906500 0000906500 PACKING PAD ANGLE 9363267006 9363267006 9363267006 DIODE MINIMOLD 0000684019 0000684019 0000684019 PACKING PAD B 9365612002 9365612002 9365612002 DIODE POWER 0000208024 00002080...

Page 191: ... 815 TERMINAL 4P 9306488055 9306488055 9306488055 652 1 THERM HOLDER PIPE 313806262805 313806262805 313806262805 918 THERMISTOR ASSY 9703756016 9703756016 9703756016 234 THERMISTOR ASSY ROOM 9703299025 9703299025 9703299025 235 THERMISTOR ASSY ROOM 9703299094 9703299094 9703299094 163 2 184 1 THERMO SPRING A 313728262708 313728262708 313728262708 462 TOP COVER PLATE 9362806015 9362806015 936280601...

Page 192: ...L B 9356560008 9356560008 9356560008 9356560008 956 CONTROL BOX METAL F 9356900002 9356900002 9356900002 9356900002 236 CONTROLLER PCB ASSY 9701042135 9701042135 9701042135 9701042135 236 CONTROLLER PCB ASSY 9701042142 236 CONTROLLER PCB ASSY 9701042159 9701042159 9701042159 625 CORD BUSHING 9359240006 9359240006 9359240006 9359240006 982 1 CORD CLAMP 9356857009 9356857009 9356857009 9356857009 98...

Page 193: ...56537000 9356537000 924 INTAKE SEAL PLATE 9356553000 9356553000 9356553000 9356553000 JOINT PIPE C 9366949008 9366949008 9366949008 9366949008 772 JOINT PIPE A 9302812014 9302812014 326 JOINT 3 WAY 9359419006 9359419006 9359419006 LABEL R407C 9362409001 9362409001 9362409001 9362409001 9362409001 9362409001 9362409001 9362409001 LED 0000813259 0000813259 0000813259 0000813259 0000813259 0000813259...

Page 194: ...55004 909 STRAINER A 9365457009 9365457009 9365457009 909 STRAINER C 9365443002 997 STRAINER D 9365450000 9365450000 996 STRAINER G 9365455005 9365455005 9365455005 9365455005 9365455005 996 STRAINER H 9365452004 9365452004 9365452004 9365452004 567 SUPPORT PLATE EVA 9363323009 9363323009 455 SUPPORT PLT EVA 9363404005 9363404005 SWITCH PUSH 9700450016 9700450016 9700450016 9700450016 9700450016 9...

Page 195: ...LTER 0400197119 0400197119 0400197119 924 SEAL PLATE 9361347007 9361347007 9361347007 629 2 EMI FILTER 0400406396 0400406396 0400406396 599 SIGNAL PCB ASSY 9703728013 9703728013 9703728013 77 EMI FILTER 9702126018 9702126018 9702126018 56 2 SIROCCO FAN L 9361636002 9361636002 9361636002 146 EVAPORATOR ASSY 9361436008 9361436008 9361436008 56 1 SIROCCO FAN R 9361635005 9361635005 9361635005 825 EXP...

Page 196: ... 9357956015 685 COVER TERMINAL 9357955001 9357955001 9357955001 9357955001 326 CROSS FLOW FAN L ASY 9357919003 9357919003 9357919003 325 CROSS FLOW FAN R ASY 9357918006 9357918006 9357918006 141 1 CUSHION BASE L 9366864011 9366864011 9366864011 9366864011 141 2 CUSHION BASE R 9366864028 9366864028 9366864028 9366864028 CUSHION BRKT PANEL A 9361152014 9361152014 9361152014 9361152014 268 1 CUSHION ...

Page 197: ... INSULATION CASING F 9365778005 9365778005 9365778005 9365778005 268 INSULATION CASING H 9358703007 9358703007 9358703007 9358703007 478 4 INSULATION DRAIN H 9358793008 9358793008 9358793008 478 5 INSULATION HINGE F 9364423005 9364423005 9364423005 9364423005 478 6 INSULATION HINGE J 9364425009 9364425009 9364425009 9364425009 759 INSULATION HINGE X 9364424002 9364424002 9364424002 9364424002 158 ...

Page 198: ... 9365443002 9365443002 9365443002 SWITCH PUSH 9700450016 9700450016 9700450016 9700450016 SWITCH ROTARY 9701694013 9701694013 9701694013 9701694013 SWITCH SLIDE 9701393015 9701393015 9701393015 9701393015 TERMINAL 9704243010 9704243010 9704243010 9704243010 652 1 THERM HOLDER PIPE 313806262805 313806262805 313806262805 313806262805 918 THERMISTOR ASSY 9703756016 9703756016 9703756016 9703756016 91...

Page 199: ...1116 Suenaga Takatsu ku Kawasaki 213 8502 Japan Jan 2002 Printed in Japan ...

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