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Table of Contents
Related Manuals for LG LN-0320CC/AC(F)
Summary of Contents for LG LN-0320CC/AC(F)
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Page 1: Service Manual
Ducted(Central) Split Air Conditioner SERVICE MANUAL MODELS: 3RT: LN-0320CC/AC(F) LN-0321CC/AC(F) LN-C0362SA0 LN-C0362TA0 4RT: LN-0420CC/AC(F) LN-0421CC/AC(F) LN-04B0CC/AC(F) LN-C0482SA0 LN-C0482TA0 LN-C048BTA0 5RT: LN-0520CC/AC(F) LN-0521CC/AC(F) LN-05B0CC/AC(F) LN-C0602SA0 LN-C0602TA0 LN-C060BTA0... -
Page 2: Table Of Contents
Contents General Data ......................... 3 Dimensions ........................... 6 Wiring Diagram ........................7 Troubleshooting Guide ...................... 11 Features of Controller ......................17 Exploded View and Replacement Parts List ..............18 Specification of Components.................... 28 — 2 —... -
Page 3: General Data
General Data Table-1 Nominal ton (Ton) LN-0320CC/AC(F) LN-0321CC/AC(F) LN-0420CC/AC(F) LN-0421CC/AC(F) Models LN-C0362SA0 LN-C048TA0 35,000 35,000 48,000 47,000 Capacity ARI Net Cooling Capacity (BTU/hr) 8,820 8,820 12,096 11,845 (Kcal/h) 220V,1PH 220V,1PH 220V,1PH 220V,1PH Electrical Data Voltage (V,PH) 20.2 20.2 31.7 M.C.A(with standard motor) Cooling (Amps) 4,000... - Page 4 General Data Table-2 Nominal ton (Ton) LN-04B0CC/AC(F) LN-0520CC/AC(F) LN-0521CC/AC(F) LN-05B0CC/AC(F) Models LN-C048BTA0 LN-C0602TA0 LN-C060BTA0 Capacity ARI Net Cooling Capacity (BTU/hr) 48,000 58,000 58,000 60,000 12,097 14,616 14,616 15,121 (Kcal/h) 220V,3PH 220V,1PH 220V,1PH 220V,3PH Electrical Data Voltage (V,PH) M.C.A(with standard motor) Cooling (Amps) 26.1...
- Page 5 General Data Table-3 Nominal ton (Ton) Models LN-C0482SA0 LN-C0602SA0 Capacity ARI Net Cooling Capacity (BTU/hr) 47,000 58,000 (Kcal/h) 11,845 14,617 Electrical Data Voltage (V,PH) 220V 220V,1PH M.C.A(with standard motor) Cooling (Amps) 31.7 41.1 Power Input Cooling (Watt) 4,200 6,000 Performance Air Circulation Nominal CFM 1,600 1,800...
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Page 6: Dimensions
Dimensions LN-0320CC/AC(F), LN-0420CC/AC(F), LN-0520CC/AC(F) 1. Indoor unit Unit Dimensions Unit: inch(mm) MODEL Condensate 18.5 (470) 23.6 (600) Drain-Horizontal 18.9 (480) 19.7 (500) 3/4" NPT-Female 39.9 (1014) 44.7 (1135) 3.3 (84) 5.4 (136) Suction line Suction line Suction line 11.9 (303) 13.0 (329) 5.6 (142) 7.1 (181) -
Page 7: Wiring Diagram
LN-0520CC/AC(F), LN-0420CC/AC(F) DIAGRAM WIRING BK: BLACK OR: ORANGE YL:YELLOW FACTORY WIRING OPTIONAL WIRING BR: BROWN RD: RED WH: WHITE (w ith LG 's TH ER M OS TAT) FIELD WIRING NOTES BL: BLUE GN/YL: GREEN/YELLOW AC 24V OUTDOOR UNIT INDOOR UNIT 1Ø... - Page 8 Wiring Diagram LN-0320CC/AC(F), LN-0321CC/AC(F), LN-C0362SA0 DIAGRAM WIRING BK: BLACK OR: ORANGE YL:YELLOW FACTORY WIRING OPTIONAL WIRING BR: BROWN RD: RED WH: WHITE ( w i t h L G ' s T H E R MO S TAT ) FIELD WIRING NOTES BL: BLUE GN/YL: GREEN/YELLOW...
- Page 9 Wiring Diagram LN-04B0CC/AC(F), LN-05B0CC/AC(F), LN-C048BTA0, LN-C060BTA0 FACTORY WIRING BK:BLACK OR:ORANGE YL:YELLOW OPTIONAL WIRING BR:BROWN RD:RED WH:WHITE DIAGRAM WIRING AC 24V FIELD WIRING BL:BLUE GN/YL:GREEN/YELLOW NOTES OUTDOOR UNIT INDOOR UNIT Comp TRANS 3Ø 220V, 60Hz TIME DELAY P.C.B GN/YL Heater POWER SUPPLY GN/YL R S T ELECTRO-MECHANICAL...
- Page 10 YL:YELLOW FACTORY WIRING BK:BLACK OR:ORANGE DIAGRAM WIRING BR:BROWN RD:RED WH:WHITE OPTIONAL WIRING AC 24V FIELD WIRING BL:BLUE GN/YL:GREEN/YELLOW NOTES (with LG's THERMOSTAT) OUTDOOR UNIT INDOOR UNIT 1Ø 220V,60Hz Comp TRANS POWER SUPPLY GN/YL Heater GN/YL ELECTRO-MECHANICAL THERMOSTAR PILLAR TERMINAL TERMINAL...
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Page 11: Troubleshooting Guide
Troubleshooting Guide In general, possible trouble is classified in two causes. The one is called Starting Failure which is caused from an electrical defect, and the other is Ineffective Air Conditioning caused by a defect in the refrigeration circuit and improper application. Unit runs but ineffective cooling Ineffective Cooling or Heating Check of cold (warm) air cir-... - Page 12 Troubleshooting Guide Fails to Start Check power source. Check of circuit breaker and fuse. Check control switch Check control switch. setting. Compressor only fails to Fan only fails to start. start. Electric heater is not energized Improper wiring. Drop of power voltage. Loose terminal connection.
- Page 13 Troubleshooting Guide PACKAGE AIR CONDITIONER VOLTAGE LIMITS NAME PLATE RATING MINIMUM MAXIMUM 220 V 187 V 253 V 1. No cooling and heating operation performed 1) Both the blower and the compressor do not work WHAT TROUBLED COMPLAINTS HOW TO CHECK REMEDY Other parts except the •...
- Page 14 Troubleshooting Guide 3) Only outdoor fan does not work WHAT TROUBLED COMPLAINTS HOW TO CHECK REMEDY Motor • Over-heated Check how it is insulated. Repair or replace it. • Wire short Electric Wiring Cut off of wiring Check it with a tester. Rewiring or repair.
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Page 15: The Units Discontinue After The Operation Started
Troubleshooting Guide 2. The Units discontinue after the operation started WHAT TROUBLED COMPLAINTS HOW TO CHECK REMEDY Wash it by means of Coil is dirty *1 Checking Outdoor coil something like chemical washing. Extract air by vacuum In-condensable gas Air intruded into the In the event that pump, then replenish refrigerant pipe line *1... -
Page 16: The Unit Is Working, But Not Cooling And Heating Sufficiently
Troubleshooting Guide 3. The unit is working, but not cooling and heating sufficiently (Both blower and compressor are working) WHAT TROUBLED COMPLAINTS HOW TO CHECK REMEDY Load Heat load increased. Much Cooling or Heating Do necessary disposal load Window or door has many respectively. -
Page 17: Features Of Controller
Features of Controller 1. Timer PCB Circuit Diagram R06M DO1M R03M R01M Q01M AC220V 1N4148 220K KRC107K 60Hz RY01M JQ1a-12V C01M R02M 3.3uF IC01M KA393 D02D~D05D 1SR139-600 INR14D471 IC01D Magnetic D04D D02D Relay 7812 D05D D03D C04D C01D 470uF C02D RY01M JQ1a-12V TRANS... -
Page 18: Exploded View And Replacement Parts List
Exploded View and Replacement Parts List 1. Indoor Unit • Exploded View: LN-0320CC/AC(F), LN-0321CC/AC(F), LN-0420CC/AC(F), LN-0421CC/AC(F), LN-04B0CC/AC(F), LN-0520CC/AC(F), LN-0521CC/AC(F), LN-05B0CC/AC(F), LN-C0362SA0, LN-C0362TA0, LN-C0482SA0, LN-C0482TA0, LN-C048BTA0, LN-C0602SA0, LN-C0602TA0, LN-C060BTA0 269140 249951 W6920 261704 W0CZZ 266140 354212-2 354212-1 552111 330860-1 330860-2 359012 346810 267110 152302... - Page 19 Exploded View and Replacement Parts List • Replacement Parts List LN-0520CC/AC(F) LOCATION No. DESCRIPTION LN-0520CC LN-0520AC(F) REMARK 152302 FILTER(MECH),A/C 5230A20003J 5230A20003J 249951 CONTROL BOX ASSEMBLY,INDOOR 4995A10044E ACF.AWGGLPS 249951 CONTROL BOX ASSEMBLY,INDOOR 4995A10044A 4995A10044A 261704 TRANSFORMER,POWER 6170A10001H ACF.AWGGLPS 261704 TRANSFORMER,POWER 6171AQ2138G 6171AQ2138G 266140 CONTROL,DEFROST...
- Page 20 Exploded View and Replacement Parts List LN-0321CC/AC(F), LN-C0362SA0 LN-0321CC, LOCATION No. DESCRIPTION LN-0321AC(F) REMARK LN-C0362SA0 152302 FILTER(MECH),A/C 5230A20003K 5230A20003K 249951 CONTROL BOX ASSEMBLY,INDOOR 4995A20146C 4995A20146D 261704 TRANSFORMER,POWER 6170A10001G 6170A10001H 266140 CONTROL,DEFROST 6614A30001J 6614A30001J 267110 REMOTE CONTROLLER ASSEMBLY 6711A20063A 6711A20063A Option 269140 TIMER 3Q01017C...
- Page 21 Exploded View and Replacement Parts List LN-C0482SA0, LN-C0602SA0 LOCATION No. DESCRIPTION LN-C0482SA0 LN-C0602SA0 REMARK 152302 FILTER(MECH),A/C 5230A20003J 5230A20003J 249951 CONTROL BOX ASSEMBLY,INDOOR 4995A10044E 4995A10044E 261704 TRANSFORMER,POWER 6170A10001H 6170A10001H 266140 CONTROL,DEFROST 6614A30001J 6614A30001J 267110 REMOTE CONTROLLER ASSEMBLY 6711A20063A 6711A20063A Option 330860-1 DRAIN PAN 3086A10006A 3086A10006A...
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Page 22: Exploded View And Replacement Parts List
Exploded View and Replacement Parts List 2. Outdoor Unit • Exploded View [3RT SIDE DISCHARGE MODELS] — 22 —... - Page 23 Exploded View and Replacement Parts List • Exploded View [4RT, 5RT TOP DISCHARGE MODELS] — 23 —...
- Page 24 Exploded View and Replacement Parts List • Exploded View [4RT, 5RT SIDE DISCHARGE MODELS] — 24 —...
- Page 25 Exploded View and Replacement Parts List • Replacement Parts List LN-0520CC/AC(F) LOCATION No. DESCRIPTION LN-0520CC LN-0520AC(F) REMARK 546810 MOTOR ASSEMBLY,OUTDOOR 4681A20039A 4681A20039A 552203-1 VALVE,SERVICE 2A00499E 2A00499E 552203-2 VALVE,SERVICE 2H01890A 2H01890A 554031-1 CONDENSER ASSEMBLY,BENT 5403A10001B 5403A20057F 554031-2 CONDENSER ASSEMBLY,BENT 5403A10001D 5403A20057H 554160 COMPRESSOR SET 2A01094E...
- Page 26 Exploded View and Replacement Parts List LN-0321CC/AC(F), LN-C0362SA0 LN-0321CC, LOCATION No. DESCRIPTION LN-0321AC(F) REMARK LN-C0362SA0 546810 MOTOR ASSEMBLY,OUTDOOR 4681A20013R 4681A20013R 552203-1 VALVE,SERVICE 2A00392F 2A00392F 552203-2 VALVE,SERVICE 2A00393A 2A00393A 554031 CONDENSER ASSEMBLY,BENT 5403A20022V 5403A20066D 554160 COMPRESSOR SET 2520UFHK2AA 2520UFHK2AA 559010 FAN ASSEMBLY,PROPELLER 1A00195B 1A00195B 566001...
- Page 27 Exploded View and Replacement Parts List LN-C0482SA0, LN-C0602SA0 LOCATION No. DESCRIPTION LN-C0482SA0 LN-C0602SA0 REMARK 546810 MOTOR ASSEMBLY,OUTDOOR 4681A20008J 4681A20008J 552203-1 VALVE,SERVICE 2A00499A 2A00499A 552203-2 VALVE,SERVICE 2A01198C 2A01198C 554032 CONDENSER ASSEMBLY,BENT 5403A20125A 5403A20125A 554160 COMPRESSOR SET 2520UFJK1AA 2520UNDK2AA 559010 FAN ASSEMBLY,PROPELLER 1A00195B 1A00195B 566001...
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Page 28: Specification Of Components
Specification of components LN-0320CC/AC(F) LN-0321CC/AC(F) LN-0420CC/AC(F) LN-04B0CC/AC(F) LN-C0362SA0 LN-C048BTA0 2A01169A 2A01169A 5417A20009A 2A01094E Comp P/No. SQ036KAA SQ036KAA AVD5548EXN CRN5-0500-PFV MODEL NAME 19.2 34.3 QUANTITY 4681A20022H 4681A20022H 4681A20022H 4681A20022G INDOOR MOTOR P/No. 347 W 347 W 347 W 3475W OUTPUT 15mm 15mm 15mm 15mm... - Page 29 Specification of components LN-0421CC/AC(F) LN-0521CC/AC(F) LN-05B0CC/AC(F) LN-0520CC/AC(F) LN-C0482TA0 LN-C0602TA0 LN-C060BTA0 2520UFJK1AA 5417A20008Q 2A01094E 5417A20008N Comp P/No. MODEL NAME SQ042KAA H23A463DBLA CRN5-0500-PFV H23A623DBLA 12.6 34.3 QUANTITY INDOOR MOTOR P/No. 4681A20057B 4681A20022H 4681A20057B 4681A20022G OUTPUT 347 W 347 W 347 W 345 W 15mm 15mm 15mm...
- Page 30 Specification of components LN-C0482SA0 LN-C0602SA0 2520UFJK1AA 2520UFJK2AA Comp P/No. MODEL NAME SQ042KAA SR061KAA QUANTITY INDOOR MOTOR P/No. 4681A20008J 4681A20008J OUTPUT 347 W 347 W 15mm 15mm SHAFT DIA 995 (Hi) 995 (Hi) QUANTITY 4681A20039B 4681A20039B OUTDOOR MOTOR P/No. 90 W 90 W OUTPUT SHAFT DIA...
- Page 31 January, 2005 P/No.: 3828A20220D Printed in Korea...