Single Packaged Air Conditioner SERVICE MANUAL
Contents
1. Diameter O D 560mm 560mm 560mm INDOOR BLOWER P No 2A00578V 2A00578V 2A00578V Diameter Width 280 mm x 280 mm 280 mm x 280 mm 280 mm x 280 mm LOW PRESSURE SWITCH P No 6600A20004D 6600A20004D 6600A20004D Spec OFF 2 0kgf cm ON 3 5kgf cm OFF 2 0kgf cm ON 3 5kgf cm OFF 2 0kgf cm ON 3 5kgf cm Rated volt AC 24 AC 24 AC 24 Maker SAGINOMIYA SAGINOMIYA SAGINOMIYA CAPACITOR for COMP P No 6120AR2194K 6120AR2359U 0CZZA10001A Spec 45uF 400VAC 60UF 400VAC 55uF 400VAG CAPACITOR for IDM P No 0CZZA20001B 0CZZA20001B 0CZZA20001B Spec 15uF 450VAC 15uF 450VAC 15uF 450VAC CAPACITOR for ODM P No 6120AR2194K 6120AR2359U 0CZZA10001A Spec 6uF 400VAC 6uF 400VAC 6uF 400VAC CAPILLARY TUBE P No 3E92334G 3E92334M 3H02633K Spec ID 1 4 x L1200 mm ID 1 4 x L1000 mm ID 1 4 x L750 mm Q ty 5 8 8 TRANSFORMER P No 6170A10001E 6170A10001E 6170A10001E Spec AC220V 450mA AC220V 450mA AC220V 450mA CONTACTOR for COMP P No 2A00771F 2A00771F 2A00771F Spec 40A 24V CONTROL 40A 24V CONTROL 40A 24V CONTROL RELAY for IDM P No 6920AP3194B 6920AP3194B 6920AP3194B Spec AC 24V 25A AC 24V 25A AC 24V 25A R2. LG Single Packaged Air Conditioner Q m PV IAN J MODELS LK 0329CH AH LK 0429CH AH LK 0529CH AH Contents Model Number Nomenclature 3 General Data a spa dieit pedibus stir 4 Dimensions a a uka 5 Refrigerant Circuit Diagram ssssssssssssssssssssssssaa 6 Wiring DIE GRAIN ie bareboat apd tet ahi 7 Troubleshooting tA eua d ole ata is 8 Features of Controller 14 Exploded View and Replacement Parts List 15 Specification of Components 18 Model Number Nomenclature LK 0529CH H Horizontal Flow C Cooling Only A Gold Fin Cooling Only Development Sequence 2 220V 60Hz 19 Nominal cooling capacity 05 5 10 03 3 ton 04 4 ton LG Single Package Air Conditioner General Data Table 1 Nominal ton Ton 3 4 5 Models LK 0329CH AH LK 0429CH AH LK 0529CH AH Capacity ARI Net Cooling Capacity BTU hr 35 000 47 000 57 000 Kcal h 8 821 11 845 14 364 Electrical Data Voltage V PH 208 230V 1PH 208 230V 1PH 208 230V 1PH M C A with standard motor Cooling Amps 29 31 48
3. Power Input Cooling Watt 3 740 4 350 6 000 Performance Air Circulation Nominal CFM CFM 1 050 1 590 1 750 SEER Cooling BTU hr W 10 0 11 0 10 0 Sound Rating Cooling dB A 8 8 4 8 4 Features LG Electronic Thermostat Option Option Option Time Delay Safety Function Y Y Y Cooling Operation Mode Y Y Y Heating Operation Mode with E Heater Y Y Y Soft Dry Operation s Timer Setting 24 Hour on off Auto restart mode Humidifier function a E E Test function 5 x Self Diagnosis Function 5 Filter type x Compressor Type Scroll Scroll Scroll Quantity 1 1 1 Outdoor Coil Type High efficiency High efficiency High efficiency Tube size O D inch 9 32 9 32 9 32 mm 7 00 7 00 7 00 Row FPI 1R 18FPI 2RA8FPI 2RA8FPI Lengh inch 55 1 8 55 1 8 55 1 8 mm 1 400 1 400 1 400 Face area sq ft 10 72 10 72 10 72 m 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 2RA8FPI SR 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 m 0 42 0 42 0 42 Outdoor Fan Type Propeller Propeller Propeller No Used Diameter in 1EA 22 1EA 22 1EA 22 Drive Type Direct Direct Direct CFM 3 500 3 500 3 500 No Motor Motor output H 1 0 33 1 0 33 1 0 33 Motor RPM 1 060 1 060 1 060 Indoor Fan Type Centrifugal Blower Fan Centrifugal Blower Fan Centrifugal Blower Fan No Used 1EA 1EA 1EA Diameter W
4. CHECK REMEDY Outdoor coil Coil is dirty 1 Checking Wash it by means of something like chemical washing In condensable gas blended Air intruded into the refrigerant pipe line 1 In the 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 Extract air by vacuum pump then replenish charge the refrigerant High pressure switch Option part Improper adjustment Check it with a pressure gauge Read just it to normal operating pressure Note Don t alternate the specified adjusting pressure If the adjusted pressure exceed the specified range it will cause a great accident Refrigerant A shortage of refrigerant amount 2 Check pressure Replenish the refrigerant Repair the spot where it is leaked Outdoor Fan Reverse rotation of fan Obstacle Air short circuit 1 Confirm the wind blowing out upward Check it with eyes If reversed connect interchanged wires to each terminal Power wirings Note Use an appropriate measuring instrument for readjustment 1 High pressure switch moves 2 Low pressure switch moves 12 Troubleshooting Guide 3 The unit is working but not cooling and heating sufficiently Both blower and compressor are working W
5. Motor Capacitor Over heated Wiring short Defected Check it with tester Check it with a tester Repair or replace it Replace it Electric wiring Cut OFF of wiring Short circuited on operation Check it with a tester Rewiring or Repair 10 Troubleshooting Guide 3 Only outdoor fan does not work Short circuited on operation 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 4 Only compressor does not work WHAT TROUBLED COMPLAINTS HOW TO CHECK REMEDY Magnetic switch for compressor motor Defective contact magnetic coil troubled Check it with the eyes on with a tester Repair or replace it Compressor motor Troubled over heated layer short Check how it is insulated Replace or repair the compressor High pressure switch Option part Troubled or defective contact or operating Check it with a tester Replace it if neces sary Electric circuit Defective connection or disconnection of the circuit for compressor Check it with a tester Rewiring or push reset button 11 Troubleshooting Guide 2 The Units discontinue after the operation started WHAT TROUBLED COMPLAINTS HOW TO
6. 0060B 4995A10060A 4995A10060A 4995A10060E 4995A10060E R 261704 TRANSFORMER POWER 6170A10001E 6170A10001F 6170A10001E 6170A10001F 6170A10001E 6170A10001F R 268716 TIMER 3Q010117C 3Q010117C 3Q010117C 3Q010117C 3Q010117C 3Q010117C R 346810 MOTOR ASSY INDOOR 4681A20057C 4681A20057C 4681A20057B 4681A20057B 4681A20057B 4681A20057B R 354210 EVAPORATOR ASSY FIRST 5421A10002T 5421A10002T 54214100028 5421A10002S 54214100028 5421A10002 R 359012 FAN ASSY BLOWER 2A00578V 2A00578V 2A00578V 2A00578V 2A00578V 2A00578V R 546810 MOTOR ASSY OUTDOOR 4681A20039B 4681A20039B 4681A20039B 4681A20039B 4681A20039B 4681A20039B R 554031 CONDENSER ASSY BENT 5403A10021A 5403A10021B 5403A10019A 5403A10019B 5403A10019A 5403A10019B R 554160 COMPRESSOR ASSY FINAL 2520UFDK1AA 2520UFDK1AA 2520UFJK1AA 2520UFJK1AA 5416A10002B 5416A10002B R 559010 FAN ASSY PROPELLER 5901A10010A 5901 10010 5901A10010A 5901A10010A 5901A10010A 5901 100104 R 566000 SWITCH PRESSURE 6600A20004D 6600A20004D 6600A20004D 6600A20004D 6600A20004D 6600A20004D R 666000 SWITCH MAGNET 2A00771F 2A00771F 2A00771F 2A00771F 2A00771F 2A00771F R 669200 RELAY 6920AP3194B 6920AP3194B 6920AP3194B 6920AP3194B 6920AP3194B 6920AP3194B R WOCZZ 1 CAPACITOR DRAWING 0CZ2A20001B 0CZZA20001B 0CZZA20001B 0CZZA20001B 0CZZA20001B 0CZZA20001B R WOCZZ 2 CAPACITOR DRAW
7. Correct it 13 Features of Controller 1 Timer PCB Circuit Diagram AC220V D02D D05D 1SR139 600 Magnetic Relay JQ1a 12V 2 Timer PCB ASSY 14 Exploded View and Replacement Parts List 1 LK 0329CH AH 0429CH AH 0529CH AH Exploded View 15 Exploded View and Replacement Parts List Exploded View and Replacement Parts List Replacement Parts List LOCATION PINO NO LK 0329CH LK 0329AH LK 0429CH LK 0429AH LK 0529CH LK 0529AH 249950 CONTROL BOX ASSY SINGLE 4995A10060B 4995A1
8. ELAY for ODM P No 2A00771F 2A00771F 2A00771F Spec RLA RATED LOAD AMPERE LOCKED ROTOR AMPERE 40A 24V CONTROL 40A 24V CONTROL 40A 24V CONTROL IDM INDOOR MOTOR ODM OUTDOOR MOTOR 18 May 2002 P No 3828A20220B Printed in Korea
9. HAT TROUBLED COMPLAINTS HOW TO CHECK REMEDY Load Much Cooling or Heating Heat load increased Do necessary disposal load Window or door has many respectively cracks or gaps Air flow Obstacle disturbs Intake Checking Correct it of uniform airflow Short air volume Reverse rotation of Checking Correct it blower Refrigerant Shortage in the charged Coil inlet pipe is frosted Recharge it refrigerant Repair the leakage spot Air passage Improper or foreign bodies Checking Correct or clear the foreign bodies Air filter Clogged with dust Checking Cleaning 4 All the functions are performed as specified but very noisy and vibrant WHAT TROUBLED COMPLAINTS HOW TO CHECK REMEDY Compressor Liquid refrigerant flooding Check for refrigerant over charge back from the evaporator e Check to see if the intake air temperature is extremely cold Check for insufficient air flow quantity Faulty Discharge valve Checking Replace the and suction valve compressor Blower Fan broken Checking Repair or replace it Foreign matters intruded PEAR UE D en bodies Screws Looseness or fail off of Checking Correct screws Electric troubles Defective contact Checking Repair and clean or Magnetic contactor Defective contact point replace it Rusting and foreign mat ters in the iron core con tact face Defective con tact of the operating switch Others Improper installation Checking
10. ING 6120AR2194K 6120AR2194K 6120AR2359U 6120AR2359U OCZZA10001A 0CZZA10001A R 5211A10268A 521110250A 5211A10270A R dig 5211A10268B WITH TROPICAL CYCLE 5211A10268B WITH TROPICAL CYCLE R 330870 DRAIN PAN ASSY 3087A10017A R 3828A20228A SPANISH WITH NOM R 3828A20228B ENGLISH R 738290 OWNERS MANUAL 3828A20228C SPANISH ENGLISH R 3828A20228G ENGLISH ARABIC R 3828A20228L SPANISH FOR MIRAGEL R 738281 SERVICE MANUAL 3828A20220B 3828A20220B 3828A20220B 3828A20220B 3828A20220B 3828A20220B R REMOTE CONTROLLER 267110 ASSEMBLY 6711A20063A OPTION PART R REMOTE CONTROLLER 267110 ASSEMBLY WIRELESS 6711420041 R OPTION PART R 17 Specification of Components LK 0329CH AH LK 0429CH AH LK 0529CH AH P No 2520UFJK1AA 5416A10002B Model name SQ032KAA SQ042KAA H20R583ABCA RLA 14 0 17 1 28 LRA 74 102 165 Q ty 1 1 1 INDOOR MOTOR P No 4681A20057C 4681A20057B 4681A20057B Output 0 5Hp 0 5Hp 0 5Hp Shaft Dia 15 mm 15 15 RPM 840 Hi 1 020 Hi 1 090 Hi OUTDOOR MOTOR P No 4681A20039B 4681A20039B 4681A20039B Output 0 33 Hp 0 33 Hp 0 33 Hp Shaft Dia 15 mm 15 mm 15 mm RPM 1 050 1 050 1 050 Q ty 1 1 1 OUTDOOR FAN P No 5901 10010 5901A10010A 5901A10010A
11. NT OF WIRE BL AND CONNECT THERMISTER ON THE EVAPORATOR OPTION BL MAGNETIC CONTACT For comp MAGNETIC CONTACT For E heater THERMISTER POWER RELAY For Imotor OPTION LOW PRESSUTRE S W Q o ELECTRIC HEATER FOR EVA ELECTRO THERMOSTAT MECHANICAL THERMOSTAT MECHANICAL a b 3RT 4RT BLACK BLUE RED 5RT BLUE BLACK RED P NO 3854A30047S 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 Y Y Y Check of cold warm air cir culation for smooth flow Check heat load increase in cooling operation Check of outdoor coil heat exchanger amp the fan operation Unexpected residue Check gas leakage I Dirty indoor coil heat exchanger Repair gas leak Added electrical utencil Malfunction of fan Check of inside gas Clogging of air filter Replacement unit if the
12. idth in 11 11 11 11 11 11 Drive Type Motor Step Direct 3 Direct 3 Direct 3 No motors 1EA 1 1 Motor output standard oversized 0 5Hp N A 0 75Hp N A 0 75Hp N A Motor rpm Standard oversized 840N A 1 020 N A 1 090 N A Drain Connection Size in 3 4 3 4 3 4 Refrigerant kg 1 7 2 2 2 3 Refrigerant Charge Ibs 3 75 4 85 5 07 Type R 22 R 22 R 22 Refrigerant Control Capillary Tube Capillary Tube Capillary Tube Dimensions Indoor unit WxHxD inch 43 3 8 28 9 16 32 11 16 43 3 8 28 9 16 32 11 16 43 3 8 28 9 16 32 11 16 mm 1102 725 830 1102 725 830 1102 725 830 Weight Net kg 110 120 140 Ibs 242 5 264 6 308 6 Dimensions LK 0329CH AH LK 0429CH AH LK 0529CH AH Unit Inch mm 289 16 725 3211 830 4330 1102 2011 16 525 MIO O m gt 21 8 73 Unit Inch mm 133 16 335 11 2 38 91 2 242 3 19 55 s 143 24 1 4 622 119119 294 TO nm OO wv gt 91 16 230 CLEARANCE 34 E Center line of hole 1 5 Dia hole power wires CLEARANCE 18 CLEARANCE 48 HORIZONTAL CLEARANCE 34 gt 1 5 Dia hole other purpose Refrigerant Circuit Diagram LK 0329CH AH LK 0429CH AH LK 0529CH AH PRESSURE LOW PRESSURE PORT SWITCH OUTDOOR INDOOR COIL COIL TUBE REFRIGERANT FLOW Wiri
13. ng Diagram LK 0329CH AH LK 0429CH AH LK 0529CH AH DIAGRAM WIRING WITH LG S THERMOSTAT 19 208 230V 60Hz 1 208 230V 60Hz POWER SUPPLY POWER SUPPLY USING ELECTRIC HEATER FACTORY WIRING BK BLACK OR ORANGE YL YELLOW OPTIONAL WIRING BR BROWN RD RED l FIELD WIRING BL BLUE WH WHITE T B TERMINAL BLOCK TERMI BL FUSE 250V 10A BL CUT X POINT OF WIRE LOW PRESSUTRE MAGNETIC CONTACT For comp MAGNETIC CONTACT For E heater THERMISTER FOR EVA OPTION AND CONNECT THERMISTER WIRE ON THE EVAPORATOR OPTION POWER RELAY For motor ELECTRIC HEATER LG S THERMOSTAT R C G 1 w1 moner a o sRTaRT BLACK sue RED 5RT BLUE BLACK 850 P NO 3854A30047S DIAGRAM WIRING WITH LOCALLY PURCHASED THERMOSTAT 12 208 230V 60Hz 1 208 230V 60Hz POWER SUPPLY POWER SUPPLY NOTES vA x FACTORY WIRING BK BLACK OR ORANGE YL YELLOW N ELECTRIC USING HEATER OPTIONAL WIRING BR BROWN RD RED 1 tii FIELD WIRING BL BLUE WH WHITE T B TERMINAL BLOCK TERMINAL 8 TIME DELAY P C B FUSE 250V 10A CUT X POI
14. pressure I unit is beyond repair Adjust refrigerant Y gt charge Obstruction at air outlet Countermeasure against above trouble Y Malfunction of compressor Check clogging in refrigera tion circuit Y Replacement of tempera ure i erence o compressor inlet amp outlet air Repair clogging in refrigera COOLING 7 10 C tion circuit HEATING 15 17 C Troubleshooting Guide Fails to Start Y Check power source Check control switch setting Check of circuit breaker and fuse Check control switch Compressor only fails to Fan only fails to start start Electric heater is not energized Y Improper wiring Drop of power voltage lt gt Loose terminal connection lt Defect of fan motor Improper wiring lt it Defect of compressor capacitor I capacitor T Irregular motor resistance 2 Capacitor check Irregular motor insulation 2 Replacement of capacitor lt Y Replacement of fan motor Y Improper electric heater Irregular motor resistance Q Regular but fails to start Y Y Replacement of elec
15. tric Irregular motor insulation heater y Replacement of compressor Replacement of compressor Troubleshooting Guide PACKAGE AIR CONDITIONER VOLTAGE LIMITS NAME PLATE RATING MINIMUM MAXIMUM 208 230V 187V 253V 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 unit Electric supply interrupted Defective power wiring Cut off power fuse Measure power supply with 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 Repair a switch box and relative instrument Replacement of fuse Request a power supplier to repair Too low voltage Measure it with a tester Check the power source Use a thick cable if nec essary Magnetic switch for com pressor amp fan motor Control point is on condi tion of OFF due to trou ble Make short circuit then measure it with tester Replace it if necessary Operating switch Troubled or defective contactor 2 Only Indoor blowers do not work Check it with the eyes or tester Repair or replace it WHAT TROUBLED COMPLAINTS HOW TO CHECK REMEDY
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