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Exploded View and Replacement Parts List

• Replacement Parts List

AB-H1208VA0

559010

FAN ASSEMBLY, PROPELLER

5901A10029A

435312

GRILLE ASSEMBLY, DISCHARGE

3531A20211F

546810

MOTOR ASSEMBLY, OUTDOOR

4681A10014H

549610

MOUNT ASSEMBLY, MOTOR

4960A10022A

649950

CONTROL BOX ASSEMBLY

4995A10163A

668711

PCB ASSEMBLY

6871A20583W

566001-2

SWITCH, MAGNET

6600B000041

W6920

RELAY

3A00261C

W0CZZ

CAPACITOR

3A00988G

10 µF, 450VAC

554032-1

CONDENSER ASSEMBLY

5403A20160A

PCM

554032-2

CONDENSER ASSEMBLY

5403A20160B

PCM

554032-3

CONDENSER ASSEMBLY

5403A20159A

PCM

554032-4

CONDENSER ASSEMBLY

6711A20127B

PCM

554032-1

CONDENSER ASSEMBLY

5403A20160G

GOLD

554032-2

CONDENSER ASSEMBLY

5403A20160H

GOLD

554032-3

CONDENSER ASSEMBLY

5403A20159G

GOLD

554032-4

CONDENSER ASSEMBLY

5403A20159H

GOLD

554160-1

COMPRESSOR 2520UBBY2BA

AR081YAB

554160-2

COMPRESSOR

2520UBDY2AB

AR073YAB

548490

ACCUMULATOR

4849A10038A

552203-1

VALVE, SERVICE

MJX30447401

Ø 28

552203-2

VALVE, SERVICE

5220A20035A

Ø 15.88

552116

TUBE ASSEMBLY, REVERSING

5211A12308C

552200

VALVE, EXPANSION BODY

5220A90013A

552201-1

VALVE, CHECK

3A01020H

552201-2

VALVE, CHECK

3A01020L

552204

VALVE,SOLENOID

5220A90002H

561410

COIL ASSEMBLY,REVERSING VALVE

6141A20010R

561411-1

COIL ASSEMBLY,EXPANSION

6141A20011W

561411-2

COIL ASSEMBLY, SOLENOID

6141A20031L

561411-3

COIL ASSEMBLY, SOLENOID

6141A20031M

566000

SWITCH, PRESSURE

3A02524L

HIGH PRESSURE

263230-1

THERMISTOR

6323A20020P

CONDENSER, AMBIENT TEMP.

263230-2

THERMISTOR

6323A20020Q

COMP-A DISCHARGE,SUCTION

263230-3

THERMISTOR

6323A20020R

COMP-B DISCHARGE

LOCATION

No.

DESCRIPTION

PART No.

AB-H1208VA0

REMARK

Содержание AB-H1208VA0

Страница 1: ...LG Large Duct Type Air Conditioner SERVICE MANUAL MODELS AB H1208VA0 ...

Страница 2: ...y A Changwon R 410A B Duct Type of Air Conditioner Model Type 8 380 415V 50Hz 3Ø Electric Standard Volts Freq Phase 2 Contents Model Number Nomenclature Model Number Nomenclature 2 General Data 3 Dimensions 5 Wiring Diagram 6 Troubleshooting Guide 7 Features of Controller 24 Exploded View and Replacement Parts List 28 ...

Страница 3: ...on interunit cable indoor to outdoor No x mm2 Model AB H1208VA0 B120AH SV0 Indoor unit type Ducted Type 3 380 415 50 34 3 117 000 32 8 112 000 38 1 130 000 2 05 BLDC Sirocco fan 1 491 x 1 105 97 90 3 708 3 426 3 179 20 Direct drive 3R x 24C x 17 1 600 x 720 x 800 63 0 x 28 3 x 31 5 130 287 prefilter 53 51 49 15 88 5 8 28 58 11 8 34 28 10 Thermistor R410A LEV Single 4 x 1 25 2 x 1 25 Note 1 Capacit...

Страница 4: ...osting method Capacitor µF V ac Fan Drive Discharge direction Side Top Air flow rate x No of fan CMM CFM Sound level Sound pressure at 1m dB A 3 Piping connections Liquid Ø mm inch Gas Ø mm inch Max piping length Indoor unit Outdoor unit m Max elevation Indoor unit Outdoor unit m 1 280 x 1 520 x 730 50 4 x 59 8 x 28 7 300 661 1 Scroll 1 x AR073YAB 1 x AR081YAB PSC 2 325 x 2 FVC68D PVE 8 000 282 2 ...

Страница 5: ...0 900 bolt hole 1280 190 700 bolt hole 730 690 670 1555 63 1444 48 100 Air inlet Air inlet Air outlet Service Panel Knockout hole Knockout hole For the control wiring the power supply refrigerant connecting pipe For the control wiring the power supply refrigerant connecting pipe 1 Indoor Unit 2 Outdoor Unit ...

Страница 6: ...case Heater U BK Compressor A BK RD W U V WH BK Crankcase Heater 1 2 A2 4 6 3 5 RD BK WH CN_COM CN_POWER CN_3PHASE 6 5 A2 2 4 1 3 WH RD BK CN_COMP 3854A20684A GN YL BL BLUE YL YELLOW BR BROWN GN YL GREEN YELLOW WH WHITE BK BLACK RD RED NOTE Air Thermistor Thermistor 1 Thermistor Compressor DischargePipe Suction Pipe Compressor Thermistor 2 Compressor DischargePipe CN_TH1 CN_TH3 CN_TH2 Outdoor Moto...

Страница 7: ...ooting Guide DC Link Volt Voltage Input R S T N Current Detector PWM ENABLE SMPS Magnet On Off Output Error Indicator Communication Parts On_board Rewrite EEPROM DC Link Volt Detector Communication LED IPM U V W Output Hall Sensor Input ...

Страница 8: ... 8 Troubleshooting Guide Input Current Detection 3 Input EMC Noise Filter IPM Motor Drive IC Hall sensor Input AC DC converter DC Link Detection SMPS Input Voltage Detection ...

Страница 9: ... Float switch Open Off 5 Communication Indoor Outdoor Communication Poorly Off 6 Outlet pipe sensor Open Short Off 7 Different mode operation Different mode operation Off 9 EEPROM check sum Check sum mismatching Off 10 BLDC motor fan lock Motor not operation Off 15 Communication indoor Fan Communication Poorly Off Contents Indoor Status Case of error Outdoor Error Error Code 24 High Pressure Switc...

Страница 10: ...malfunction Over Current Off 22 CT 2 Max Current 2time 2time Current is 6AÆ Off 23 DC Link Low Volt 2time 3time DC Link volt Is 280V Off 40 CT Circuit 4time CT Circuit malfunction 20AÆ Off 52 Communication Error 5time 2time Communication Poorly Off 60 EEPROM Check Sum Error 6time Check sum mismatching Off Contents Outdoor Status LED01G Red LED02G Green Case of error 2 Times 1 Sec 1 Time 2 Sec LED0...

Страница 11: ... abnormal connection of Hall sensor The abnormal connection of U V W Mechanical Locking of Fan Miss connection The abnormal connection of Hall sensor The abnormal connection of U V W Instant Overcurrent RMS current 20AÆ Peak current 24AÆ Poor insulation of Fan Overload Mechanical Locking of Fan Check the overload condition Mechanical Locking of Fan Check the drop of power source Check the power so...

Страница 12: ...frigerant charge Malfunction of compressor Replacement of compressor Check of cold warm air cir culation for smooth flow Dirty indoor coil heat exchanger Malfunction of fan Clogging of air filter Obstruction at air outlet Countermeasure against above trouble Check clogging in refrigera tion circuit Repair clogging in refrigera tion circuit In general possible trouble is classified in two causes Th...

Страница 13: ...or insulation Ω Replacement of fan motor Improper electric heater Replacement of electric heater Regular but fails to start Replacement of compressor Electric heater is not energized Loose terminal connection Improper wiring Irregular motor resistance Ω Irregular motor insulation Ω Replacement of compressor Drop of power voltage Compressor only fails to start Check power source Check control switc...

Страница 14: ...a tester in case that the same power source is supplied to other equip ment except the unit what and where troubled can be discovered by checking the operation of other equipment Measure it with a tester Make short circuit then measure it with tester Check it with the eyes or tester Repair a switch box and relative instrument Replacement of fuse Request a power supplier to repair Check the power s...

Страница 15: ...LAINTS HOW TO CHECK REMEDY Magnetic switch for compressor motor Compressor motor High pressure switch Option part Electric circuit Defective contact magnetic coil troubled Troubled over heated layer short Troubled or defective contact or operating Defective connection or disconnection of the circuit for compressor Check it with the eyes on with a tester Check how it is insulated Check it with a te...

Страница 16: ... event that difference between the saturating temperature corresponding to high pressure and the temperature of air discharged from the outdoor coil is more than 15 C incondensable gas may be blended Check it with a pressure gauge Confirm the wind blowing out upward Check it with eyes Wash it by means of something like chemical washing Extract air by vacuum pump then replenish charge the refrigera...

Страница 17: ...lear the foreign bodies Cleaning 4 All the functions are performed as specified but very noisy and vibrant WHAT TROUBLED COMPLAINTS HOW TO CHECK REMEDY Compressor Blower Screws Electric troubles Magnetic contactor Others Checking Checking Checking Checking Improper installation Checking Replace the compressor Repair or replace it Clear the foreign bodies Correct Repair and clean or replace it Corr...

Страница 18: ...the D01D D05D R05C on the main PCB NO YES Is the output voltage of IC01A 7036 on the main PCB DC5V NO 1 Exchange IC01D 7812 on the main PCB 2 Check the D01D D05D R05C on the main PCB 1 Exchange IC01A 7036 on the main PCB Is the output voltage of transformer AC24V AC13V 1 Exchange OSC 2 Check the pattern around OSC on the main PCB Is the input voltage of remote controller DC12V YES NO YES Is the po...

Страница 19: ...he power supply YES YES Is there OSC vibration on the remote controller PCB NO 1 Check or exchange IC01D 7812 on the MAIN PCB 1 Exchange OSC 2 Check the pattern around OSC on the remote controller PCB Is any key on the remote controller keeping pressed 1 Check Keys 2 Repair or exchange Key Is there trouble in the remote controller PCB ASS Y NO YES NO Are there trouble in LCD parts YES 1 Check crac...

Страница 20: ... PCB DC0V Is the magnetic contactor for compressor OK 1 Check Compressor and Capacitor for Compressor NOTE 3ø model has not capacitor for compressor YES NO 1 Set flowing Set Temp Room Temp NO NO YES Is the voltage between 1PIN of CN COMP and NEUTRAL 220V NO 1 Check or exchange IC02D 2 Check 3 minutes time delay 1 Check or exchange RY4 Set Temp Room Temp 1 Check the wiring of Magnetic contactor 2 E...

Страница 21: ... PCB 5V Is the magnetic contactor for heater OK Check or exchange E Heater 1 Set following Set temp Room temp 1 Check or exchange IC01D IC02D on the MAIN PCB Is the voltage between 1PIN of CN6 and NEUTRAL 220V 1 Check or exchange RY13 Set temp Room temp 1 Check the wiring of Magnetic contactor 2 Exchange Magnetic contactor YES YES NO YES YES NO YES NO NO NO YES NO Possible trouble 6 No heater oper...

Страница 22: ... Is the magnetic contactor for humidifier OK Check the humidifier 1 Press humidifier Key 1 Check or exchange IC02D on the MAIN PCB Is the voltage between 1PIN of CN5 and NEUTRAL 220V 1 Check or exchange RY3 Is the HUMID LCD ON 1 Check the wiring or Magnetic contactor 2 Exchange Magnetic contactor YES YES NO YES YES NO NO NO YES NO Possible trouble 7 No humidifier operation performed ...

Страница 23: ... on the main PCB 1 Check or exchange RY10 1 Check the wiring of Power relay 2 Exchange Power relay YES YES YES NO NO NO YES NO Is the compressor operating 1 Check wiring for outdoor motor and magnetic contactor 2 Check outdoor motor capacitor Is it cooling operation 1 Press power ON OFF button 2 Select cooling operation 1 Set following Set temp Room temp 2 Wait if the unit has operating with 3 min...

Страница 24: ... 24 Features of Controller 1 Circuit Diagram of Indoor PCB ...

Страница 25: ... 25 2 Circuit Diagram of BLDC Driver ...

Страница 26: ... 26 3 Circuit Diagram of Outdoor PCB ...

Страница 27: ...48 CH54 CH02 CH03 Cause of error OPEN SHORT of Room Temp sen sor OPEN SHORT of Indoor Pipe sensor Communication Error between indoor PCB and Remote controller Communication Error between indoor PCB out door PCB High Pressure Switch Trip Remark Sensing condition of error Method of SVC ...

Страница 28: ...Replacement Parts List 267110 344170 1 354210 152302 330870 344170 2 349610 359012 342800 349600 336610 249951 658740 268714 1 566001 1 W6200 WOFZZ 268714 2 263230 4 263230 5 263230 6 1 Indoor Unit Exploded View AB H1208VA0 ...

Страница 29: ...6711A20127B 249951 CONTROL BOX ASSEMBLY INDOOR 4995A20526A 268714 1 PCB ASSEMBLY 6871A00012A Main PCB 268714 2 PCB ASSEMBLY 6871A10222A BLDC Motor 658740 REACTOR 5874A90003H 566001 1 MAGNETIC CONTACTOR 6600B000039 WOFZZ FUSE 0FZZA90001M 15A 600V W6200 FILTER CIRC EMC 6200J000125 263230 4 THERMISTOR ASSEMBLY 6323A30004L RETURN AIR SENSOR 263230 5 THERMISTOR ASSEMBLY 6323AQ3226Y PIPE EVA OUT TEMP SE...

Страница 30: ... 1 554032 3 554032 2 554032 4 549610 546810 548490 554160 2 552116 566000 552204 561410 552201 1 552203 2 552203 1 552200 554160 1 561411 1 561411 2 561411 3 668711 W6920 W0CZZ 566001 649950 552201 2 263230 2 263230 3 263230 1 2 Outdoor Unit Exploded View AB H1208VA0 ...

Страница 31: ...ONDENSER ASSEMBLY 5403A20159G GOLD 554032 4 CONDENSER ASSEMBLY 5403A20159H GOLD 554160 1 COMPRESSOR 2520UBBY2BA AR081YAB 554160 2 COMPRESSOR 2520UBDY2AB AR073YAB 548490 ACCUMULATOR 4849A10038A 552203 1 VALVE SERVICE MJX30447401 Ø 28 552203 2 VALVE SERVICE 5220A20035A Ø 15 88 552116 TUBE ASSEMBLY REVERSING 5211A12308C 552200 VALVE EXPANSION BODY 5220A90013A 552201 1 VALVE CHECK 3A01020H 552201 2 VA...

Страница 32: ...P No 3828A20845A June 2006 Printed in Korea ...

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