LG LK-0329AH Service Manual Download Page 1 | Manualshive

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Single Packaged
Air Conditioner

SERVICE MANUAL

MODELS: LK-0329CH/AH, LK-0329AHF

LK-0429CH/AH, LK-0429AHF
LK-0529CH/AH, LK-0529AHF

LK-SM-101

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Summary of Contents for LK-0329AH

Page 1: ...Single Packaged Air Conditioner SERVICE MANUAL MODELS LK 0329CH AH LK 0329AHF LK 0429CH AH LK 0429AHF LK 0529CH AH LK 0529AHF LK SM 101 ...

Page 2: ...Contents Model Number Nomenclature 3 General Data 4 Dimensions 5 Refrigerant Circuit Diagram 6 Wiring Diagram 7 Troubleshooting Guide 8 Features of Controller 14 Exploded View and Replacement Parts List 15 ...

Page 3: ...2 9 C H Development Sequence LG Single Package Air Conditioner H Horizontal Flow C Cooling Only A Gold Fin Cooling Only 2 220V 60Hz 1Ø 03 3 ton 04 4 ton 05 5 ton Nominal cooling capacity Model Number Nomenclature ...

Page 4: ... 400 Face area sq ft 10 72 10 72 10 72 m2 1 00 1 00 1 00 Indoor Coil Type High efficiency High efficiency High efficiency Tube size O D inch 3 8 3 8 3 8 mm 9 52 9 52 9 52 Row FPI 2R 18FPI 3R 18FPI 3R 18FPI Lengh inch 21 5 8 21 5 8 21 5 8 mm 550 550 550 Face area sq ft 4 51 4 51 4 51 m2 0 42 0 42 0 42 Outdoor Fan Type Propeller Propeller Propeller No Used Diameter in 1EA 22 1EA 22 1EA 22 Drive Type...

Page 5: ...hole A B CLEARANCE 34 CLEARANCE 48 HORIZONTAL CLEARANCE 34 1 5 Dia hole power wires 1 5 Dia hole other purpose CLEARANCE 18 D C Unit Inch mm Unit Inch mm A 289 16 725 B 3211 16 830 C 433 8 1102 D 2011 16 525 E 27 8 73 A 133 16 335 B 11 2 38 C 91 2 242 D 3 4 19 E 55 8 143 F 241 4 622 G 119 16 294 H 91 16 230 ...

Page 6: ...rcuit Diagram S OUTDOOR COIL INDOOR COIL REFRIGERANT FLOW PRESSURE PORT SV Bypass Cycle option DISCHARGE LINE SUCTION LINE LOW PRESSURE SWITCH PRESSURE PORT D CAPILLARY TUBE LK 0329CH AH F LK 0429CH AH F LK 0529CH AH F ...

Page 7: ...T BLACK BLUE BLUE BLACK RED RED a b P NO 3854A30047S c L R C G Y1 W1 N 1 2 3 Fan Comp Heater LG S THERMOSTAT 3 4 5 6 YL WH WH L1 L2 L1 L2 4 6 1 0 T2 T2 1Ø 208 230V 60Hz POWER SUPPLY L N 1Ø 208 230V 60Hz POWER SUPPLY 1Ø 208 230V 60Hz POWER SUPPLY USING ELECTRIC HEATER TERMINAL BLOCK MAGNETIC CONTACT For E heater A B T1 L1 L2 T2 MAGNETIC CONTACT For comp A B T1 L1 L2 4 0 1 6 T2 CAPACITOR H C F COMP ...

Page 8: ...rigerant 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 The...

Page 9: ...sulation 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 Capacitor check Replacement of capacitor Compressor only fails to start Ch...

Page 10: ...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 source Use a ...

Page 11: ...MEDY 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 tester Check it with a t...

Page 12: ...hat 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 refrigerant Read ...

Page 13: ...s 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 Correct it Liquid refriger...

Page 14: ...01M JQ1a 12V Magnetic Relay AC220V 60Hz R02M 47K IC01M KA393 D04D 1 0 D02D D05D C02D 104 C04D 104 IC01D 7812 C01D 470uF 25V D03D D02D D05D 1SR139 600 3 8 1 2 4 C01M 3 3uF IC2 C7 IC1 C1 CN1 CN2 D1 D2 D3 D4 D5 C4 RY1 R5 R8 R9 R6 D6 C6 C8 R7 D7 R3 R2 C2 R4 R1 R10 PCB 2Q01062A C3 C5 Q1 Q2 IC3 CN3 1 Timer PCB Circuit Diagram 2 Timer PCB ASSY ...

Page 15: ... 15 Exploded View and Replacement Parts List 269140 W0CZZ 261704 W0CZZ W6920 566001 249950 1 LK 0329CH AH F 0429CH AH F 0529CH AH F Exploded View ...

Page 16: ... 16 Exploded View and Replacement Parts List 559010 554160 346810 546810 554031 552111 354210 359012 330870 ...

Page 17: ...MBLY BENT 5403A10019A 5403A10019B 5403A10019B 554160 COMPRESSOR 5416A10002B 5416A10002B 5416A10002B 559010 FAN ASSEMBLY PROPELLER 5901A10010A 5901A10010A 5901A10010A 566000 SWITCH ASSEMBLY PRESSURE 6601A20007C 6601A20007C 6601A20007C Low pressure S W 566001 SWITCH MAGNET 2A00771F 2A00771F 2A00771F W6920 RELAY 6920AP3194B 6920AP3194B 6920AP3194B 738281 MANUAL SERVICE 3828A20220B 3828A20220B 3828A20...

Page 18: ...81A20057B 354210 EVAPORATOR ASSEMBLY FIRST 5421A10002S 5421A10002S 5421A10002S 359012 FAN ASSEMBLY BLOWER 2A00578V 2A00578V 2A00578V 546810 MOTOR ASSEMBLY OUTDOOR 4681A20039B 4681A20039B 4681A20039B 552111 TUBE ASSEMBLY CAPILLARY 5211A10250A 5211A10250A 5211A10250A FOR NORMAL PRODUCT 5211A10250D 5211A10250D 5211A10250D FOR BYPASS CYCLE 554031 CONDENSER ASSEMBLY BENT 5403A10019A 5403A10019B 5403A10...

Page 19: ...1A20057C 4681A20057C 4681A20057C 354210 EVAPORATOR ASSEMBLY FIRST 5421A10002T 5421A10002T 5421A10002T 359012 FAN ASSEMBLY BLOWER 2A00578V 2A00578V 2A00578V 546810 MOTOR ASSEMBLY OUTDOOR 4681A20039B 4681A20039B 4681A20039B 552111 TUBE ASSEMBLY CAPILLARY 5211A10268A 5211A10268A 5211A10268A FOR NORMAL PRODUCT 5211A10268B 5211A10268B 5211A10268B FORTHEPRODUCTWITHBYPASSCYCLE 554031 CONDENSER ASSEMBLY B...

Page 20: ...P No 3828A20220B December 2004 Printed in Korea ...

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