LG LT-B2421CL Service Manual Download Page 12

Page: 12 / 86

• HEAT PUMP

–12–

INDOOR UNIT

OUTDOOR UNIT

HEAT
EXCHANGER

COMPRESSOR

GAS SIDE

LIQUID SIDE

COOLING

HEATING

REVERSING
VALVE

CHECK VALVE

CAPILLARY TUBE

• Rated performance for refrigerant line length of: 5m
• If 24K or 28K Model is installed at a distance of 15m, 500g of refrigerant

should be added ....................................................(15-5)x50g

MODEL

24K, 28K, 30K BTU 5/8"

3/8"

36K BTU

3/4"

3/8"

GAS

LIQUID

Elevation B(m)

Length A(m)

* Additional

refrigerant

(g/m)

Pipe Size

Rated

Max.

Summary of Contents for LT-B2421CL

Page 1: ...te Air Conditioner SERVICE MANUAL MODELS LT B2461CL LT B2461HL LT B2861CL LT B2861HL LT B2421CL LT B2421HL LT B2821CL LT B2821HL LT B3021CL LT B3021HL LT B3681CL LT B3681HL LT B3621CL LT B3621HL LT B3661CL LT B3661HL ...

Page 2: ...cle Diagram 11 Wiring Diagram 13 Operation Details 19 Installation of Indoor Outdoor Unit 22 Test Running 34 3 way Valve 36 Cycle Troubleshooting Guide 41 Electronic Parts Troubleshooting Guide 42 Electronic Control Device 46 Schematic Diagram 47 Exploded View and Replacement Parts List 49 2 ...

Page 3: ...previous operation mode after power supply The setting temperature and desired operation mode are automatically set by fuzzy rule Both the indoor and outdoor fan stops during defrosting Hot start after defrost ends The indoor fan stops until the evaporator piping temperature will be reached at 28 C Indoor Unit Operation ON OFF by Remote controller Sensing the Room Temperature Room temperature cont...

Page 4: ...mer Cooling model only Heating model only Low Med High Cooling Operation Mode Heating Operation Mode Auto Operation Mode Soft Dry Operation Mode Fan Operation Mode HI MED LO Program Holiday SET CLR Min Hour Week Timer Cancel Timer Cancel High 39 C LOW 11 C Fan Operates without cooling heating Cooling Heating Down to 18 C Up to 30 C Down to 16 C Up to 30 C ...

Page 5: ...nosis Air Circulation m3 min Dimensions W H D mm W A LT B2421CL 24 000 6 048 3 5 17 50 2 700 12 5 8 89 60 2 000 24 000 6 048 24 000 6 048 3 5 17 50 2 700 2 400 12 5 10 5 8 89 61 1 870 28 000 7 056 4 0 19 52 2 850 12 8 9 82 60 2 150 30 000 7 560 4 3 19 52 2 850 12 8 10 53 60 2 150 30 000 7 560 30 000 7 560 4 3 19 52 2 850 2 750 12 8 12 3 10 53 65 2 400 28 000 7 056 28 000 7 056 4 0 19 52 2 850 2 75...

Page 6: ...ation Soft Dry Fan Speed Indoor Timer Self Diagnosis Air Circulation m3 min Dimensions W H D mm W A LT B2461CL LT B2461HL LT B2861CL LT B2861HL 24 000 6 048 3 5 17 50 2 800 13 5 8 57 60 1 900 24 000 6 048 24 000 6 048 3 5 17 50 2 800 2 500 14 13 8 57 61 1 870 28 000 7 056 4 0 19 52 2 850 13 4 9 82 60 2 100 28 000 7 056 28 000 7 056 4 0 19 52 2 850 2 650 13 4 12 6 9 82 65 2 400 Service Valve Connec...

Page 7: ... Circulation m3 min Dimensions W H D mm W A LT B3681CL 36 000 9 072 5 0 22 58 4 300 7 5 80 3 150 36 000 9 072 36 000 9 072 5 0 22 58 4 300 4 100 7 5 7 0 81 3 150 36 000 9 072 5 0 22 58 4 400 22 80 3 150 36 000 9 072 36 000 9 072 5 0 22 58 4 400 4 100 22 21 81 3 150 36 000 9 072 36 000 9 072 5 0 22 58 4 000 3 800 18 17 81 3 000 36 000 9 072 5 0 22 58 4 000 18 80 3 150 LT B3681HL LT B3661CL LT B3661...

Page 8: ...Dimensions Indoor Unit 910 910 298 707 800 600 113 650 75 100 145 423 910 255 298 30 328 30 800 840 840 423 910 8 ...

Page 9: ...5 L3 MODEL DIM W mm 870 870 H mm 655 800 D mm 320 320 L1 mm 370 370 L2 mm 25 25 L3 mm 340 340 L4 mm 630 775 L5 mm 25 25 L6 mm 546 546 L7 mm 162 162 L8 mm 162 162 L9 mm 54 54 L10 mm 74 5 74 5 L11 mm 79 79 LT B2421CL HL LT B2461CL HL LT B2861CL LT B2821CL LT B3021CL LT B2861HL LT B2821HL LTB3021HL ...

Page 10: ...10 Outdoor Unit LT B3621CL HL B3661CL HL B3681CL HL 320 790 385 72 482 4 ø12Hole 249 71 145 500 145 10 334 354 10 265 440 925 965 130 40 80 292 5 5 3 1 2 4 Air intake vent Air intake vent Air intake vent ...

Page 11: ...of 15m 500g of refrigerant should be added 15 5 x50g MODEL 24K 28K 30KBTU 5 8 3 8 5 20 36KBTU 3 4 3 8 5 25 GAS LIQUID 5 15 50 5 20 70 Elevation B m Length A m Additional refrigerant g m Pipe Size Rated Rated Max Max INDOOR UNIT OUTDOOR UNIT HEAT EXCHANGER EVAPORATOR HEAT EXCHANGER CONDENSER COMPRESSOR GAS SIDE LIQUID SIDE CAPILLARY TUBE 11 ...

Page 12: ... CAPILLARY TUBE CAPILLARY TUBE Rated performance for refrigerant line length of 5m If 24K or 28K Model is installed at a distance of 15m 500g of refrigerant should be added 15 5 x50g MODEL 24K 28K 30KBTU 5 8 3 8 5 20 36KBTU 3 4 3 8 5 25 GAS LIQUID 5 15 50 5 20 70 Elevation B m Length A m Additional refrigerant g m Pipe Size Rated Rated Max Max ...

Page 13: ...Wiring Diagram 1 Indoor Unit 1 COOLING ONLY 2 HEAT PUMP 13 ...

Page 14: ...tor HIGH PRESSURE S W GN YL L1 L2 L3 GN YL TO INDOOR POWER INPUT 1 N 2 L 3 N 4 L 5 6 7 8 TERMINAL BLOCK 3854A90002G GN YL BK COMP MOTOR R S C BL BR BR BR BR BL BL WH BL FUSE 5A FUSE 5A BL RD P T C OPTION BR YL OR BK BK BK BK RD REVERSING COIL BK BK YL BL POWER RELAY 8 4 1 6 2 0 Capacitor Capacitor HIGH PRESSURE S W GN YL L1 L2 L3 GN YL TO INDOOR POWER INPUT 1 N 2 L 3 N 4 L 5 6 7 8 TERMINAL BLOCK 3...

Page 15: ... TERMINAL BLOCK RUN CAPACITOR FOR FMo TM CM MAIN TERMINAL BLOCK COMPRESSOR F1 FMo FUSE 250V 5A OUTDOOR FAN MOTOR P NO 3854A30042P RD RED WH WHITE YL YELLOW WIRING OF FIELD CONNECTING WIRE TM 3Ø 380 415V POWER SUPPLY BK 52C 1 3 5 31 2 4 6 32 B A BK WH BK WH RD BK BK RD BL BK WH T1 T3 T2 CM WH WH BL BK R S T N Co OR YL BL BK OR YL BL BK Co FMo1 FMo2 GN YL 3 N 4 L 5 6 7 F1 ...

Page 16: ...N MOTOR F1 DP CH1 THMO 52F2 FUSE 250V 5A DEICER PCB CRANK CASE HEATER FOR CM THEMOSTAT FOR COOLING RELAY FOR FMO CONTROL P NO 3854A30042H RD RED WH WHITE YL YELLOW WIRING OF FIELD CONNECTING WIRE TM 3Ø 380 415V POWER SUPPLY BK 63H2 52C 1 3 5 31 2 4 6 32 B A BK WH BK TNS NO C TH NC D P WH T B1 BK WH WH RD BK WH BK BK RD BL BK BK WH T1 T3 T2 CH1 CM YL WH WH BL BK R S T N Co OR YL BL BK OR YL BL BK C...

Page 17: ...R FMo TM CM CR MAIN TERMINAL BLOCK COMPRESSOR RUN CAPACITOR FOR CM F1 FMo FUSE 250V 5A OUTDOOR FAN MOTOR P NO 3854A30042N RD RED WH WHITE YL YELLOW WIRING OF FIELD CONNECTING WIRE TM POWER SUPPLY BK Cr 52C BK BK L1 T1 L2 T2 B A WH BK WH BK WH BL BK BK RD R C S CM WH WH GN YL WH BL BK 1 N 2 L Co OR YL BL BK OR YL BL BK Co FMo1 FMo2 THMO C H L GN YL TO INDOOR 3 N 4 L 5 6 7 F1 ...

Page 18: ...Mo OUTDOOR FAN MOTOR F1 DP CH1 THMO 52F2 FUSE 250V 5A DEICER PCB CRANK CASE HEATER FOR CM THEMOSTAT FOR COOLING RELAY FOR FMO CONTROL P NO 3854A30042L RD RED WH WHITE YL YELLOW WIRING OF FIELD CONNECTING WIRE TM POWER SUPPLY BK 63H2 Cr 52C CH1 BK BK BK BK L1 T1 L2 T2 B A WH BK TNS NO C TH NC D P WH T B1 BK WH WH BK WH BL BK BK RD R C S CM YL WH WH GN YL WH BL BK 1 N 2 L Co OR YL BL BK OR YL BL BK ...

Page 19: ... louver up and down automatically 3 Air Filter Checking Control Filter will display in the remote controller display when an air filter is polluted Then clean the air filter for refer ence to Owners Manual 4 Soft Dry Operation The indoor fan speed is automatically set to the low so the shift of the indoor fan speed is impossible because of already being set to the best speed for Dry Operation by M...

Page 20: ... C the fan operates at low speed for 10sec after 10sec it operates at seleted fan speed 20 6 Heating Mode Operation Except Cooling Model The unit will operate according to the setting by the remote controller and the operation diagram is shown as following Hot Start Low Selecting Fan Speed minimum 3min Selecting fan speed minimum 10sec 1min A A minimum 1min minimum 10sec B 7 Hot Start Control The ...

Page 21: ...ON ON OFF OFF COMPRESSOR 4 WAY VALVE INDOOR FAN 6 C ON 12 C OFF The outdoor piping Temp ON More than 10 min running of compressor More than 45 minutes of heating operation 5sec HOT START ON 9 Self Diagnosis Function CH will flash in the remote controller display when a problem occurs Then please contact your dealer Correct the accident point as shown in the table below before restarting operation ...

Page 22: ... spaces indicated by arrows from the wall ceiling or other obstacles The indoor unit must keep the maintenance space 2 Outdoor unit If an awning is built over the unit to prevent direct sunlight or rain exposure be careful that heat radiation from the condenser is not restricted There should not be any animals or plants which could be affected by hot air discharged Ensure the spaces indicated by a...

Page 23: ...at it draws oily steam which should not flow into the suction of the air conditioner Make enough distance from a cooking room to install the air conditioner in such a place where it may not suck in oily steam 2 Avoid installing air conditioner in such circumstances where cutting oil mist or iron powder is in sus pension in factories etc 3 Avoid places where inflammable gas is generated flows in is...

Page 24: ...ng the direction of drain hose Drill the hole for anchor bolt on the wall Level gauge Unit mm Ceiling 800 Unit size 800 Unit size 720 Hanging bolt 60 60 840 Ceiling opening 840 Ceiling opening 624 Hanging bolt 108 108 600 120 120 Ceiling board This air conditioner uses a drain pump Horizontly install the unit using a level gauge During the installation care must be taken not to damage electric wir...

Page 25: ...tallation Although the room temperature sensor is in the indoor unit the remote control box should be installed in such places away from direct sunlight and high humidity Installation of the remote control box Select places that are not splashed with water Select control position after receiving customer approval The room temperature sensor of the thermostat for temperature control is built in the...

Page 26: ...g a screw driver etc Front case The lower part Face of wall Under plate Screw accessory WIRED REMOTE CONTROL INSTALLATION REMOTE CONTROL PREPARATION OPTION DISASSEMBLING ELECTRICAL WIRING HOW TO MOUNT ONTO A WALL HOW TO INSERT BATTERIES Do not use rechargeable bat teries such batteries differ from standard dry cells in shape dimensions and per formance Romove the batteries from the remote controll...

Page 27: ...m GN YL NORMAL CROSS SECTIONAL AREA 0 75mm Remote control cord Control box cover Control box cover fitting screw 4 units Air inlet side view Wire taking inlet Indoor Power wires Terminal Block of Indoor Unit 3 N 4 L 5 6 7 S R T 3 N N 4 L 5 6 7 8 Terminal Block of Outdoor Unit Power Cord Terminal Block of Indoor Unit 3 N 4 L 5 6 7 S R T 3 N N 4 L 5 6 7 8 Terminal Block of Outdoor Unit Power Cord Te...

Page 28: ...uit Breaker Use circuit breaker or time delay fuse ELECTRICAL WIRING GROUP CONTROL OPTIONAL It operates maximum 16 Units by only one Wired Remote Controller and each Unit starts sequentially to prevent over current Use Only One Wired Remote Controller with several air conditioners max 16 Units Sequential starting to prevent overcurrent You can use a group control after connecting the brown and yel...

Page 29: ...Putting nut on Remove flare nuts attached to indoor and out door units than put them on pipe tube having completed burr removal Not possible to put them on after flaring work 4 Flaring work Carry out flaring work using flaring tool as shown below Firmly hold copper tube in a bar or die as indicat ed dimension in the table above 5 Check Compare the flared work with figure below If flare is noted to...

Page 30: ...ere is gas leakage in indoor and outdoor connection After completing the piping connection execute vacu um drying for the connecting piping and the indoor unit The vacuum drying must be carried out using the ser vice ports of both the liquid and gas side valves Use two wrenches and tighten with regular torque Outdoor unit Liquid side Flare connection Flare connection Gas side Indoor unit Union Pip...

Page 31: ...l 4 screws 5 Connect the louver motor connector 6 After tightening these screws install the air inlet grille including the air filter Decorative panel fixing screws hexagon M5 screws Temporally fitting at 2 places Tightening about 10mm Decorative panel Louver motor connector Install the panel after making sure that the piping side of the unit body matches the piping indication of the decorative pa...

Page 32: ...rain Pump Drain pan Flexible drain hose accessory Main drain pipe Glue the joint Drain port Drain hose connection Use the clip accessory Maintenance drain port Upward routing not allowed Pipe clamp Indoor unit CAUTION Piping material Polyvinyl chloride pipe VP 25 and pipe fittings The air conditioner uses a drain pump to drain water Use the following procedure to test the drain pump operation Conn...

Page 33: ...al drain hose the end of the drain outlet should keep distance from the ground Do not dip it into water and fix it on the wall to avoid swinging in the wind 2 Tape the Pipings drain hose and Connecting Cable from bottom to top 3 Form the pipings gathered by taping along the exterior wall and fix it onto the wall by saddle or equivalent In case of the Outdoor unit being installed below position of ...

Page 34: ... 18 minutes later automatically The test run is started by pressing the room temperature checking button and down timer button for 3 sec onds at the same time To cancel the test run press any button After completing work be sure to measure and record trial run properties and store measured data etc Measuring items are room temperature outside temperature suction temperature blow out temperature wi...

Page 35: ...se from vibrations to which the unit is subjected during the course of transportation Check them and make sure that they are all tightly fastened If they are loose it could give rise to burn out of the wires 4 Specification of power source 5 Confirm that electrical capacity is sufficient 6 Be sure that the starting voltage is maintained at more than 90 percent of the rated voltage marked on the na...

Page 36: ... hose Open the low pressure valve on the charge set slightly to air purge from the charge hose 5 Set the liquid side valve to the closed position 6 Operate the air conditioner in cooling mode and stop it when the gauge indicates 1kg cm2 g 7 Immediately set the 3 way valve to the closed position Do this quickly so that the gauge ends up indicating 3 to 5kg cm2 g 8 Disconnect the charge set and moun...

Page 37: ...lare nut on liquid side valve 4 Check for gas leakage Check the flare connections for gas leakage 5 Discharge the refrigerant Close the valve on the gas cylinder and discharge the refrigerant until the gauge indicates 3 to 5 kg cm2 g 6 Disconnect the charge set and the gas cylinder and set the 2 way and 3 way valves to the open position Be sure to use a hexagonal wrench to operate the valve stems ...

Page 38: ...scharge the refrigerant until the gauge indicates 0 kg cm2 G If there is no air in the refrigerant cycle the pressure when the air conditioner is not running is higher than 1 kg cm2 G discharge the refrigerant until the gauge indicates 0 5 to 1 kg cm2 G if this is the case it will not be necessary to apply a evacuatin Discharge the refrigerant gradually if it is discharged too suddenly the refrige...

Page 39: ...4 mmHg or less 3 Close the valve Lo side on the charge set turn off the vacuum pump and confirm that the gauge needle does not move approxima tely 5 minutes after turning off the vacuum pump 4 Disconnect the charge hose from the vacuum pump Vacuum pump oil If the vacuum pump oil becomes dirty or depleted replenish as needed Lo Open Open Vacuum pump 2 Way valve Outdoor unit Liquid side Indoor unit ...

Page 40: ... 150g each time while operating the air conditioner in the cooling cycle however one time is not sufficient wait approximately 1 minute and then repeat the procedure pumping down pin 4 Immediately disconnect the charge hose from the 3 way valve s service port Stopping partway will allow the gas to be discharged If the system has been charged with liquid refrigerant while operating the air conditio...

Page 41: ...room air humidity When the room air humidity is relativery higher temperature difference is smaller When the room air humidity is relatively lower temperature difference is larger 2 Check temperature and pressure of refrigeration cycle Notice 1 The suction pressure is usually 4 5 6 0 kg cm2 G at normal condition 2 The temperature can be measured by attaching the thermometer to the low pressure tub...

Page 42: ...he FUSE and the wiring diagram Is the output voltage of IC01D DC12V Is the PIN 31 32 of MICOM DC5V Exchange MICOM YES NO Check the main P C B pattern NO NO Check the D02D D05D NO YES Exchange the transformer Is shorted the transformer output NO YES Is the output voltage of IC02D DC5V NO Exchange IC01D Exchange IC02D Is the output voltage of transformer about AC14V Check the 5V P C B pattern ...

Page 43: ...door fan does not operate 43 NO NO Is it the HOT START mode Is IC01M operated normally Check the fan motor and connector CN MOTOR YES Is the each Relay any problem YES NO YES It is normal operation Exchange IC01M Exchange Relay ...

Page 44: ...DC12V Check the step motor and connector CN AC2 AC1 Check the main P C B DC12V pattern NO Exchange IC01M NO YES YES YES Is the LCD operated normally Is the terminal of wired Remocon T2 DC12V Is the pin 31 32 of Micom DC 5V Change the wired Remocon Check the wired Remocon PCB and DC 12V pattern NO NO Check the parts of communication Connector CN Remo and terminals of wired Remocon exactly ...

Page 45: ...ng YES YES NO YES Is it Heating Mode Does the temperature set all right Change IC01M NO NO Adjust operation mode Adjust set temperature Is IC01M operated normally YES Check the connector CN OUT CN AC1 2 Check RY 4Way NO Is 4way valve operated ...

Page 46: ... 46 Electronic control device MAIN P C B ASM ...

Page 47: ...Schematic Diagram 47 ...

Page 48: ...K R03L 10K 4 7uF C02L 102 A6 A1 COM0 COM2 COM3 COM1 A0 A5 A2 A3 A4 A7 R01K 1K 5V SEG19 COM1 COM0 COM0 A19 COM1 1 3 2 SEG6 SEG1 71 COM0 COM1 COM2 COM3 SEG0 73 74 75 72 SEG2 SEG3 SEG4 SEG5 66 68 69 70 67 SEG7 64 65 SEG8 60 61 63 62 57 59 58 SEG12 P93 SEG11 SEG10 SEG9 SEG15 P90 SEG14 P91 SEG13 P92 50 53 54 56 55 51 52 SEG19 P64 SEG17 P66 SEG18 P65 SEG16 P67 SEG20 P63 SEG21 P62 SEG22 P61 47 49 48 44 4...

Page 49: ...Exploded View and Replacement Parts List 1 Indoor Unit 49 130411 352118 35511A 354212 266012 330870 249951 268714 158591 263230 ...

Page 50: ... 50 130911 3 130911 1 130911 2 152302 146812 267110 2 140570 359011 346810 135312 137213 267110 1 ...

Page 51: ...R 152302 5231AP2884A FILTER MECH A C R 158591 5859A20001A PUMP ASSY WATER R 249951 4995A20137E CONTROL BOX ASSY INDOOR R 268714 6871A10008J PWB PCB ASSY MAIN R 263230 6323AQ3226B THERMISTOR ASSY R 266012 6601A20001A SWITCH ASSY FLOAT R 267110 1 6711A10002J REMOTE CONTROLLER ASSY R 267110 2 6711A20041A REMOTE CONTROLLER ASSY R OPTION 330870 3087AP1369A DRAIN PAN ASSY R 346810 4681A20006D MOTOR ASSY...

Page 52: ...R 152302 5231AP2884A FILTER MECH A C R 158591 5859A20001A PUMP ASSY WATER R 249951 4995A20137F CONTROL BOX ASSY INDOOR R 268714 6871A10008H PWB PCB ASSY MAIN R 263230 6323AQ3226B THERMISTOR ASSY R 266012 6601A20001A SWITCH ASSY FLOAT R 267110 1 6711A10002H REMOTE CONTROLLER ASSY R 267110 2 6711A20041B REMOTE CONTROLLER ASSY R OPTION 330870 3087AP1369A DRAIN PAN ASSY R 346810 4681A20006D MOTOR ASSY...

Page 53: ...R 152302 5231AP2884A FILTER MECH A C R 158591 5859A20001A PUMP ASSY WATER R 249951 4995A20137C CONTROL BOX ASSY INDOOR R 268714 6871A10008J PWB PCB ASSY MAIN R 263230 6323AQ3226B THERMISTOR ASSY R 266012 6601A20001A SWITCH ASSY FLOAT R 267110 1 6711A10002G REMOTE CONTROLLER ASSY R 267110 2 6711A20041A REMOTE CONTROLLER ASSY R OPTION 330870 3087AP1369A DRAIN PAN ASSY R 346810 4681A20006B MOTOR ASSY...

Page 54: ...R 152302 5231AP2884A FILTER MECH A C R 158591 5859A20001A PUMP ASSY WATER R 249951 4995A20137D CONTROL BOX ASSY INDOOR R 268714 6871A10008H PWB PCB ASSY MAIN R 263230 6323AQ3226B THERMISTOR ASSY R 266012 6601A20001A SWITCH ASSY FLOAT R 267110 1 6711A10002F REMOTE CONTROLLER ASSY R 267110 2 6711A20041B REMOTE CONTROLLER ASSY R OPTION 330870 3087AP1369A DRAIN PAN ASSY R 346810 4681A20006B MOTOR ASSY...

Page 55: ...R 152302 5231AP2884A FILTER MECH A C R 158591 5859A20001A PUMP ASSY WATER R 249951 4995A20137E CONTROL BOX ASSY INDOOR R 268714 6871A10008J PWB PCB ASSY MAIN R 263230 6323AQ3226B THERMISTOR ASSY R 266012 6601A20001A SWITCH ASSY FLOAT R 267110 1 6711A10002G REMOTE CONTROLLER ASSY R 267110 2 6711A20041A REMOTE CONTROLLER ASSY R OPTION 330870 3087AP1369A DRAIN PAN ASSY R 346810 4681A20006A MOTOR ASSY...

Page 56: ...R 152302 5231AP2884A FILTER MECH A C R 158591 5859A20001A PUMP ASSY WATER R 249951 4995A20137D CONTROL BOX ASSY INDOOR R 268714 6871A10008H PWB PCB ASSY MAIN R 263230 6323AQ3226B THERMISTOR ASSY R 266012 6601A20001A SWITCH ASSY FLOAT R 267110 1 6711A10002F REMOTE CONTROLLER ASSY R 267110 2 6711A20041B REMOTE CONTROLLER ASSY R OPTION 330870 3087AP1369A DRAIN PAN ASSY R 346810 4681A20006A MOTOR ASSY...

Page 57: ...R 152302 5231AP2884A FILTER MECH A C R 158591 5859A20001A PUMP ASSY WATER R 249951 4995A20137C CONTROL BOX ASSY INDOOR R 268714 6871A10008J PWB PCB ASSY MAIN R 263230 6323AQ3226B THERMISTOR ASSY R 266012 6601A20001A SWITCH ASSY FLOAT R 267110 1 6711A10002G REMOTE CONTROLLER ASSY R 267110 2 6711A20041A REMOTE CONTROLLER ASSY R OPTION 330870 3087AP1369A DRAIN PAN ASSY R 346810 4681A20006C MOTOR ASSY...

Page 58: ...R 152302 5231AP2884A FILTER MECH A C R 158591 5859A20001A PUMP ASSY WATER R 249951 4995A20137D CONTROL BOX ASSY INDOOR R 268714 6871A10008H PWB PCB ASSY MAIN R 263230 6323AQ3226B THERMISTOR ASSY R 266012 6601A20001A SWITCH ASSY FLOAT R 267110 1 6711A10002F REMOTE CONTROLLER ASSY R 267110 2 6711A20041B REMOTE CONTROLLER ASSY R OPTION 330870 3087AP1369A DRAIN PAN ASSY R 346810 4681A20006C MOTOR ASSY...

Page 59: ...R 152302 5231AP2884A FILTER MECH A C R 158591 5859A20001A PUMP ASSY WATER R 249951 4995A20137E CONTROL BOX ASSY INDOOR R 268714 6871A10008J PWB PCB ASSY MAIN R 263230 6323AQ3226B THERMISTOR ASSY R 266012 6601A20001A SWITCH ASSY FLOAT R 267110 1 6711A10002J REMOTE CONTROLLER ASSY R 267110 2 6711A20041A REMOTE CONTROLLER ASSY R OPTION 330870 3087AP1369A DRAIN PAN ASSY R 346810 4681A20006A MOTOR ASSY...

Page 60: ...R 152302 5231AP2884A FILTER MECH A C R 158591 5859A20001A PUMP ASSY WATER R 249951 4995A20137D CONTROL BOX ASSY INDOOR R 268714 6871A10008H PWB PCB ASSY MAIN R 263230 6323AQ3226B THERMISTOR ASSY R 266012 6601A20001A SWITCH ASSY FLOAT R 267110 1 6711A10002H REMOTE CONTROLLER ASSY R 267110 2 6711A20041B REMOTE CONTROLLER ASSY R OPTION 330870 3087AP1369A DRAIN PAN ASSY R 346810 4681A20006A MOTOR ASSY...

Page 61: ...R 152302 5231AP2884A FILTER MECH A C R 158591 5859A20001A PUMP ASSY WATER R 249951 4995A20137C CONTROL BOX ASSY INDOOR R 268714 6871A10008J PWB PCB ASSY MAIN R 263230 6323AQ3226B THERMISTOR ASSY R 266012 6601A20001A SWITCH ASSY FLOAT R 267110 1 6711A10002J REMOTE CONTROLLER ASSY R 267110 2 6711A20041A REMOTE CONTROLLER ASSY R OPTION 330870 3087AP1369A DRAIN PAN ASSY R 346810 4681A20006G MOTOR ASSY...

Page 62: ...R 152302 5231AP2884A FILTER MECH A C R 158591 5859A20001A PUMP ASSY WATER R 249951 4995A20137D CONTROL BOX ASSY INDOOR R 268714 6871A10008H PWB PCB ASSY MAIN R 263230 6323AQ3226B THERMISTOR ASSY R 266012 6601A20001A SWITCH ASSY FLOAT R 267110 1 6711A10002H REMOTE CONTROLLER ASSY R 267110 2 6711A20041B REMOTE CONTROLLER ASSY R OPTION 330870 3087AP1369A DRAIN PAN ASSY R 346810 4681A20006G MOTOR ASSY...

Page 63: ...R 152302 5231AP2884A FILTER MECH A C R 158591 5859A20001A PUMP ASSY WATER R 249951 4995A20137C CONTROL BOX ASSY INDOOR R 268714 6871A10008J PWB PCB ASSY MAIN R 263230 6323AQ3226B THERMISTOR ASSY R 266012 6601A20001A SWITCH ASSY FLOAT R 267110 1 6711A10002G REMOTE CONTROLLER ASSY R 267110 2 6711A20041A REMOTE CONTROLLER ASSY R OPTION 330870 3087AP1369A DRAIN PAN ASSY R 346810 4681A20006F MOTOR ASSY...

Page 64: ...R 152302 5231AP2884A FILTER MECH A C R 158591 5859A20001A PUMP ASSY WATER R 249951 4995A20137D CONTROL BOX ASSY INDOOR R 268714 6871A10008H PWB PCB ASSY MAIN R 263230 6323AQ3226B THERMISTOR ASSY R 266012 6601A20001A SWITCH ASSY FLOAT R 267110 1 6711A10002F REMOTE CONTROLLER ASSY R 267110 2 6711A20041B REMOTE CONTROLLER ASSY R OPTION 330870 3087AP1369A DRAIN PAN ASSY R 346810 4681A20006F MOTOR ASSY...

Page 65: ...R 152302 5231AP2884A FILTER MECH A C R 158591 5859A20001A PUMP ASSY WATER R 249951 4995A20137C CONTROL BOX ASSY INDOOR R 268714 6871A10008J PWB PCB ASSY MAIN R 263230 6323AQ3226B THERMISTOR ASSY R 266012 6601A20001A SWITCH ASSY FLOAT R 267110 1 6711A10002G REMOTE CONTROLLER ASSY R 267110 2 6711A20041A REMOTE CONTROLLER ASSY R OPTION 330870 3087AP1369A DRAIN PAN ASSY R 346810 4681A20006F MOTOR ASSY...

Page 66: ...R 152302 5231AP2884A FILTER MECH A C R 158591 5859A20001A PUMP ASSY WATER R 249951 4995A20137D CONTROL BOX ASSY INDOOR R 268714 6871A10008H PWB PCB ASSY MAIN R 263230 6323AQ3226B THERMISTOR ASSY R 266012 6601A20001A SWITCH ASSY FLOAT R 267110 1 6711A10002F REMOTE CONTROLLER ASSY R 267110 2 6711A20041B REMOTE CONTROLLER ASSY R OPTION 330870 3087AP1369A DRAIN PAN ASSY R 346810 4681A20006F MOTOR ASSY...

Page 67: ...1 MODEL LT B2461CL B2461HL B2861CL B2421CL B2421HL B2821CL B3021CL 67 435512 546810 268711 554031 554160 552203 1 552201 649950 552202 566000 W0CZZ 552203 2 447910 550140 559010 552560 430410 437212 437210 349499 135301 ...

Page 68: ...721A20005G PANEL ASSY FRONT OUTDOOR R 447910 2H02110A BARRIER ASSY OUTDOOR R 546810 4681A20008J MOTOR ASSY OUTDOOR R 550140 4H01765A ISOLATOR COMP R 552203 1 2A00392E VALVE SERVICE R 552203 2 2A00393C VALVE SERVICE R 552560 5257AR3648A MUFFLER R 554031 5402AR2347K CONDENSER ASSY BENT R 554160 2A00713A COMPRESSOR ASSY FINAL R 559010 1A00195B FAN ASSY PROPELLER R 649950 4995A20025H CONTROL BOX ASSY ...

Page 69: ...SY OUTDOOR R 546810 4681A20008J MOTOR ASSY OUTDOOR R 550140 4H01765A ISOLATOR COMP R 552201 3A01020H VALVE CHECK R 552202 3A02027A VALVE REVERSING R 552203 1 2A00392E VALVE SERVICE R 552203 2 2A00393Q VALVE SERVICE R 552560 3A02035E MUFFLER R 554031 5402AR2347B CONDENSER ASSY BENT R 554160 2A00713A COMPRESSOR ASSY FINAL R 559010 1A00195B FAN ASSY PROPELLER R 566000 3A01100A SWITCH PRESSURE R 64995...

Page 70: ...0 3721A20005G PANEL ASSY FRONT OUTDOOR R 447910 2H02110A BARRIER ASSY OUTDOOR R 546810 4680AP2135M MOTOR ASSY AC R 550140 4A01334A ISOLATOR COMP R 552203 1 2A00392F VALVE SERVICE R 552203 2 2A00393A VALVE SERVICE R 552560 3A02035G MUFFLER R 554031 5402AR2347K CONDENSER ASSY BENT R 554160 2A00713D COMPRESSOR R 559010 1A00195B FAN ASSY PROPELLER R 649950 4995A20025L CONTROL BOX ASSY OUTDOOR R W0CZZ ...

Page 71: ...810 4680AP2135M MOTOR ASSY OUTDOOR R 550140 4H01765A ISOLATOR COMP R 552201 3A01020H VALVE CHECK R 552202 3A02027A VALVE REVERSING R 552203 1 2A00392E VALVE SERVICE R 552203 2 2A00393Q VALVE SERVICE R 552560 3A02035E MUFFLER R 554031 5402AR2347B CONDENSER ASSY BENT R 554160 2A00713D COMPRESSOR ASSY FINAL R 559010 1A00195B FAN ASSY PROPELLER R 566000 3A02524A SWITCH PRESSURE R 649950 4995A20025E CO...

Page 72: ...0 3721A20005A PANEL ASSY FRONT OUTDOOR R 447910 2H02110A BARRIER ASSY OUTDOOR R 546810 4681A20008J MOTOR ASSY OUTDOOR R 550140 4H01765A ISOLATOR COMP R 552203 1 2A00392F VALVE SERVICE R 552203 2 2A00393A VALVE SERVICE R 552560 5257AR3648A MUFFLER R 554031 5402AR2347K CONDENSER ASSY BENT R 554160 2A01032B COMPRESSOR ASSY R 559010 1A00195B FAN ASSY PROPELLER R 649950 4995A20025G CONTROL BOX ASSY OUT...

Page 73: ...0 3721A20005G PANEL ASSY FRONT OUTDOOR R 447910 2H02110A BARRIER ASSY OUTDOOR R 546810 4680AP2135M MOTOR ASSY AC R 550140 4A01334A ISOLATOR COMP R 552203 1 2A00392F VALVE SERVICE R 552203 2 2A00393A VALVE SERVICE R 552560 3A02035G MUFFLER R 554031 5403AP2041C CONDENSER ASSY BENT R 554160 2A01032A COMPRESSOR R 559010 1A00195B FAN ASSY PROPELLER R 649950 4995A20025L CONTROL BOX ASSY OUTDOOR R W0CZZ ...

Page 74: ...0 3721A20005A PANEL ASSY FRONT OUTDOOR R 447910 2H02110A BARRIER ASSY OUTDOOR R 546810 4681A20008J MOTOR ASSY OUTDOOR R 550140 4H01765A ISOLATOR COMP R 552203 1 2A00392F VALVE SERVICE R 552203 2 2A00393A VALVE SERVICE R 552560 5257AR3648A MUFFLER R 554031 5402AR2347K CONDENSER ASSY BENT R 554160 2A01032B COMPRESSOR ASSY R 559010 1A00195B FAN ASSY PROPELLER R 649950 4995A20025G CONTROL BOX ASSY OUT...

Page 75: ...10 349499 135301 435512 546810 268711 263230 552201 554160 552560 2 552560 1 552203 1 552203 2 137213 2 447910 137213 1 554031 559010 552202 W0CZZ 649950 566000 2 2 Outdoor Unit MODEL LT B2861HL B2821HL B3021HL ...

Page 76: ...041K PANEL ASSY FRONT SUB R 447910 2A01043A BARRIER ASSY OUTDOOR R 546810 2H02113R MOTOR ASSY AC R 550140 4H01765A ISOLATOR COMP R 552201 3A01020A VALVE CHECK R 552202 3A02027B VALVE REVERSING R 552203 1 2A00392E VALVE SERVICE R 552203 2 2A00393Q VALVE SERVICE R 552560 1 3A90082A MUFFLER R 552560 2 4A00232B MUFFLER R 554031 6140AP2096B CONDENSER ASSY BENT R 554160 2A01032B COMPRESSOR R 559010 1A00...

Page 77: ...041K PANEL ASSY FRONT SUB R 447910 2A01043A BARRIER ASSY OUTDOOR R 546810 2H02113T MOTOR ASSY AC R 550140 4H01765A ISOLATOR COMP R 552201 3A01020A VALVE CHECK R 552202 3A02027B VALVE REVERSING R 552203 1 2A00392E VALVE SERVICE R 552203 2 2A00393Q VALVE SERVICE R 552560 1 3A02035A MUFFLER R 552560 2 4A00232B MUFFLER R 554031 6140AP2096B CONDENSER ASSY BENT R 554160 2A01032A COMPRESSOR R 559010 1A00...

Page 78: ... 447910 2A01043A BARRIER ASSY OUTDOOR R 546810 2H02113R MOTOR ASSY AC R 550140 4H01765A ISOLATOR COMP R 552201 3A01020A VALVE CHECK R 552202 3A02027B VALVE REVERSING R 552203 1 2A00392E VALVE SERVICE R 552203 2 2A00393Q VALVE SERVICE R 552560 1 3A90082A MUFFLER R 552560 2 4A00232B MUFFLER R 554031 6140AP2096B CONDENSER ASSY BENT R 554160 2A01032B COMPRESSOR R 559010 1A00195A FAN ASSY PROPELLER R 5...

Page 79: ...t MODEL LT B3621CL B3621HL B3661CL B3661HL B3681CL B3681HL 552203 2 566000 552203 1 437210 135301 435512 2 546810 554160 649950 554031 3 554031 2 554031 1 552202 447910 522201 137213 435512 1 559010 W0CZZ 1 W0CZZ 2 263230 ...

Page 80: ...437210 3A00426X PANEL ASSY FRONT SUB R 447910 4761A90001A BARRIER ASSY OUTDOOR R 546810 2H00430J MOTOR ASSY AC R 552203 1 2A00393A VALVE SERVICE R 552203 2 2A00499A VALVE SERVICE R 554031 1 5403A20007C CONDENSER ASSY R 554031 2 5403A20006C CONDENSER ASSY BENT R 554031 3 5403A20006D CONDENSER ASSY BENT R 554160 2A01196B COMPRESSOR ASSY FINAL R 559010 1H00156B FAN ASSY PROPELLER R 649950 4995A20003N...

Page 81: ...SSY OUTDOOR R 546810 2H00430J MOTOR ASSY AC R 552201 3A01020H VALVE CHECK R 552202 3A02027B VALVE REVERSING R 552203 1 2A00393A VALVE SERVICE R 552203 2 2A00499A VALVE SERVICE R 554031 1 5403A20007D CONDENSER ASSY R 554031 2 5403A20006A CONDENSER ASSY BENT R 554031 3 5403A20006E CONDENSER ASSY BENT R 554160 2A01196B COMPRESSOR ASSY FINAL R 559010 1H00156B FAN ASSY PROPELLER R 566000 3A01100A SWITC...

Page 82: ...OR R 437210 3A00426X PANEL ASSY FRONT SUB R 447910 4761A90001A BARRIER ASSY OUTDOOR R 546810 2H00430X MOTOR ASSY AC R 552203 1 2A00393A VALVE SERVICE R 552203 2 2A00499A VALVE SERVICE R 554031 1 5403A20007E CONDENSER ASSY BENT R 554031 2 5403A20006A CONDENSER ASSY R 554031 3 5403A20006F CONDENSER ASSY R 554160 2A01196C COMPRESSOR ASSY FINAL R 559010 1H00156B FAN ASSY PROPELLER R 649950 4995A20003L...

Page 83: ... ASSY OUTDOOR R 546810 2H00430X MOTOR ASSY AC R 552201 3A01020H VALVE CHECK R 552202 3A02027B VALVE REVERSING R 552203 1 2A00393A VALVE SERVICE R 552203 2 2A00499A VALVE SERVICE R 554031 1 5403A20007E CONDENSER ASSY BENT R 554031 2 5403A20006A CONDENSER ASSY R 554031 3 5403A20006F CONDENSER ASSY R 554160 2A01196C COMPRESSOR ASSY FINAL R 559010 1H00156B FAN ASSY PROPELLER R 566000 3A02524A SWITCH P...

Page 84: ... 437210 3A00426X PANEL ASSY FRONT SUB R 447910 4761A90001A BARRIER ASSY OUTDOOR R 546810 2H00430X MOTOR ASSY AC R 552203 1 2A00393A VALVE SERVICE R 552203 2 2A00499A VALVE SERVICE R 554031 1 5403A20007C CONDENSER ASSY R 554031 2 5403A20006C CONDENSER ASSY BENT R 554031 3 5403A20006D CONDENSER ASSY BENT R 554160 5417A90001B COMPRESSOR ASSY FINAL R 559010 1H00156B FAN ASSY PROPELLER R 649950 4995A20...

Page 85: ... OUTDOOR R 546810 2H00430X MOTOR ASSY AC R 552201 3A01020H VALVE CHECK R 552202 3A02027B VALVE REVERSING R 552203 1 2A00393A VALVE SERVICE R 552203 2 2A00499A VALVE SERVICE R 554031 1 5403A20007D CONDENSER ASSY R 554031 2 5403A20006A CONDENSER ASSY BENT R 554031 3 5403A20006E CONDENSER ASSY BENT R 554160 5417A90001B COMPRESSOR ASSY FINAL R 559010 1H00156B FAN ASSY PROPELLER R 566000 6600AG3057A SW...

Page 86: ...P No 3828A30023K December 2000 Printed in Korea P No 3828A20023K December 2000 Printed in Korea ...

Search results

Summary of Contents for LT-B2421CL

Reviews:

Brands by name

Popular brands

LG LT-B2421CL, Service Manual

Search results

Summary of Contents for LT-B2421CL

Reviews:

Brands by name

Popular brands