Lg Lc1200, Lc1000 Service Manual

Universal Air Conditioner

SVC MANUAL(Exploded View)

MODEL : LC6000, LC8000, LC1000, LC1200 LEA0610ACL, LEA0810ACL LEA1010ACL, LEA1210ACL

CAUTION

Before Servicing the unit, read the safety precautions in General SVC manual. Only for authorized service personnel.

Internal Use Only

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LGE Internal Use Only

1. PREFACE

1.1 SAFETY PRECAUTIONS................................2

1.2 INSULATION RESISTANCE TEST .................2

1.3 SPECIFICATIONS...........................................3

1.4 FEATURES......................................................4

1.5 CONTROL LOCATIONS .................................4

DISASSEMBLY INSTRUCTIONS

2.1 MECHANICAL PARTS ....................................5

2.1.1 FRONT GRILLE .....................................5

2.1.2 CABINET ................................................5

2.1.3 CONTROL BOX .....................................5

2.2 AIR HANDLING PARTS ..................................6

2.2.1 AIR GUIDE AND TURBO FAN...............6

2.2.2 FAN ........................................................6

2.2.3 SHROUD ................................................7

2.3 ELECTRICAL PARTS......................................7

2.3.1 OVERLOAD PROTECTOR ....................7

2.3.2 COMPRESSOR......................................7

2.3.3 CAPACITOR...........................................8

2.3.4 POWER CORD ......................................8

2.3.5 THERMOSTAT.......................................8

2.3.6 ROTARY SWITCH .................................8

2.3.7 MOTOR ..................................................9

2.4 REFRIGERATION CYCLE ..............................9

2.4.1 CONDENSER.........................................9

2.4.2 EVAPORATOR.......................................9

2.4.3 CAPILLARY TUBE ...............................10

INSTALLATION

3.1 HOW TO INSTALL THE UNIT.......................12

3.2 CHECKING INSTALLATION .........................12

3.3 HOW TO DRAIN............................................12

3.4 WINDOW REQUIREMENTS .........................13

3.5 INSTALLATION KITS CONTENTS ...............13

3.6

HORIZONTAL SLIDING WINDOW INSTALLATION

.....14

3.7 CASEMENT WINDOW INSTALLATION .......15

TROUBLESHOOTING GUIDE

4.1 OUTSIDE DIMENSIONS ...............................16

4.2 PIPING SYSTEM...........................................16

4.3 TROUBLESHOOTING GUIDE ......................17

5. SCHEMATIC DIAGRAM

5.1 CIRCUIT DIAGRAM ......................................21

5.2 CIRCUIT DIAGRAM ......................................22

6. EXPLODED VIEW ..................................23

1. PREFACE

This SERVICE MANUAL provides various service information, including the mechanical and electrical parts etc. This room air conditioner was manufactured and assembled under a strict quality control system. The refrigerant is charged at the factory. Be sure to read the safety precautions prior to servicing the unit.

1.1 SAFETY PRECAUTIONS

1. When servicing the unit, set the ROTARY SWITCH or POWER SWITCH to OFF and unplug the power cord.

2. Observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or damaged by the short circuit.

3. After servicing the unit, make an insulation resistance test to protect the customer from being exposed to shock hazards.

1.2

INSULATION RESISTANCE TEST

1. Unplug the power cord and connect a jumper between 2 pins (black and white).

2. The grounding conductor (green) is to be open.

3. Measure the resistance value with an ohm meter between the jumpered lead and each exposed metallic part on the equipment at all the positions (except OFF) of the ROTARY SWITCH.

4. The value should be over 1MΩ.

CONTENTS

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LGE Internal Use Only

POWER SUPPLY

COOLING CAPACITY (Btu/h)

INPUT (W)

RUNNING CURRENT (A)

E.E.R (BTU/W.h)

INDOOR (°C)

OUTDOOR (°C)

REFRIGERANT (R-22) CHARGE

EVAPORATOR

CONDENSER

FAN, INDOOR

FAN, OUTDOOR

FAN SPEEDS, FAN/COOLING

FAN MOTOR

OPERATION CONTROL

ROOM TEMP. CONTROL

AIR DIRECTION CONTROL

CONSTRUCTION

PROTECTOR

COMPRESSOR

FAN MOTOR

POWER CORD

DRAIN SYSTEM

NET WEIGHT (lbs/kg)

OUTSIDE DIMENSION (inch)

(W x H x D) (mm)

115V, 60Hz

6,000 8,000 10,000 12,000

630 840 1,050 1,260

5.8 7.7 9.6 11.5

9.5

26.7(DB)* 19.4(WB)**

35(DB)* 23.9(WB)**

280g(9.9 oz) 460g(16.2 oz) 640g(22.6 oz) 670g(23.6 oz)

2 ROW 16 STACKS, SLIT FIN TYPE 3 ROW 16 STACKS, SLIT FIN TYPE

1 ROW 23 STACKS, 2 ROW 23 STACKS,

3 ROW 23 STACKS, SLIT FIN TYPE

SLIT FIN TYPE LOUVER FIN TYPE

TURBO FAN

AXIAL FAN

2/3

6 POLES

ROTARY SWITCH

THERMOSTAT

VERTICAL LOUVER (RIGHT & LEFT)

HORIZONTAL LOUVER (UP & DOWN)

TOP-DOWN CHASSIS

OVERLOAD PROTECTOR

INTERNAL THERMAL PROTECTOR

3 WIRE WITH GROUNDING

ATTACHMENT PLUG (CORD-CONNECTED TYPE)

DRAIN PIPE SPLASHED BY FAN SLINGER

57/26 66/30 77/35 79/36

141/

x 20

x 23

368 x 521 x 607

LC6000

LEA0610ACL

LC8000

LEA0810ACL

LC1000

LEA1010ACL

HBLG1000C

LC1200

LEA1210ACL

MODELS

ITEMS

OPERATING

CONDITION

1.3 SPECIFICATIONS

1.3.1 FOR LC6000/LC8000/LC1000/LC1200/LEA0610ACL/LEA0810ACL/LEA1010ACL/ LEA1210ACL/HBLG1000C

* DB:Dry Bulb **

WB:Wet Bulb

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LGE Internal Use Only

1.4 FEATURES

• Designed for COOLING ONLY.

• Powerful and whispering cooling.

• Simple installation and service.

• Low air-intake, top cooled-air discharge.

1.5 CONTROL LOCATIONS

1.5.1 COOLING ONLY MODEL

• VENTILATION

The ventilation lever must be in the CLOSE position in order to maintain the best cooling conditions. When a fresh air is necessary in the room, set the ventilation lever OPEN position. The damper is opened and room air is exhausted.

• TEMP

Thermostat will automatically control the temperature of the room. Select a higher number for a cooler temperature in the room. The temperature is selected by moving the knob to the desired position. The 5 or 6 position is a normal setting for average conditions.

• MODE

- Turns air conditioner off.

- Med speed fan operation without cooling.

- Low speed fan operation without cooling.

- Cooling with high speed fan operation.

- Cooling with med speed fan operation.

- Cooling with low speed fan operation.

• Built-in adjustable THERMOSTAT

• Washable one-touch filter

• Compact size

• Reliable and efficient rotary compressor is equipped.

VENTCLOSE

OPEN

Inlet Grille

NOTE!

Before using the air conditioner secure the front grille with two screws enclosed with the owner’s manual.

1. Open the inlet grille downward and remove the air filter.

2. Fasten the front grille with screws.

3. Reinstall the air filter.

4. Close the inlet grille.

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LGE Internal Use Only

2.1 MECHANICAL PARTS

2.1.1 FRONT GRILLE

1. Open the inlet grille downward and remove the air filter.

2. Remove the screws which fasten the front grille.(See Figure 1)

3. Pull the front grille from the right side.

4. Remove the front grille.(There are 4 hooks.)

5. Re-install the components by referring to the removal procedure, above.

2.1.2 CABINET

1. After disassembling the FRONT GRILLE, remove the 6 screws which fasten the cabinet at both sides.(See Figure 2)

2. Remove the 4 screws which fasten the cabinet at back.

3. Remove the cabinet.

4. Re-install the components by referring to the removal procedure, above.

2.1.3 CONTROL BOX

1. Remove the front grille. (Refer to section 2.1.1)

2. Remove the cabinet. (Refer to section 2.1.2)

3. Remove the 1 screw which fasten the power cord. (See Figure 3)

4. Disconnect the grounding screw from the evaporator channel.

5. Remove the 2 screws which fasten the control box.(See Figure 3)

6. Remove the housing which connects motor wire in the control box.

7. Remove three leads which connect compressor.

8. Discharge the capacitor by placing a 20,000 ohm resistor across the capacitor terminals.

9. Raise the control box upward completely.

10. Re-install the components by referring to the removal procedure, above. (Refer to the circuit diagram found on pages 21~22 in this manual and on the control box.)

Inlet Grille

2. DISASSEMBLY INSTRUCTIONS

— Before the following disassembly, set POWER SWITCH to OFF and disconnect the power cord.

Figure 1

Figure 3

Figure 2

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LGE Internal Use Only

2.2 AIR HANDLING PARTS

2.2.1 AIR GUIDE AND TURBO FAN

1. Remove the front grille. (Refer to section 2.1.1)

2. Remove the cabinet. (Refer to section 2.1.2)

3. Remove the control box. (Refer to section 2.1.3)

4. Remove the 4 screws which fasten the brace.

5. Remove the brace.

6. Remove the 2 screws which fasten the upper air guide. (See Figure 4)

7. Remove the upper air guide.

8. Remove the 2 screws which fasten the evaporator.

9. Move the evaporator forward and pulling it upward slightly. (See Figure 5)

10. Remove orifice by pulling two taps.

11. Remove the clamp with a hand plier which

secures the turbo fan.

12. Remove the turbo fan. (See Figure 6)

13. Remove the motor. (Refer to section 2.3.7)

14. Remove the 2 screws which fasten the lower air

guide from the base pan.

15. Remove the 2 screws which fasten the motor

mount from the base pan.

16. Remove the 2 screws which fasten the lower air

guide and motor mount.

17. Move the lower air guide backward and pull out

from the base pan. (Move the lower air giude carefully.)

18. Re-install the components by referring to the

removal procedure, above.

2.2.2 FAN

1. Remove the cabinet. (Refer to section 2.1.2)

2. Remove the brace (Refer to section 2.2.1)

3. Remove 6 screws which fasten the condenser.

4. Move the condenser to the right carefully.

5. Remove the clamp with a hand plier which secures the

fan.

6. Remove the fan. (See Figure 7)

7. Re-install by referring to the removal procedure.

Figure 4

Figure 5

Figure 6

Figure 7

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LGE Internal Use Only

2.2.3 SHROUD

1. Remove the fan. (Refer to section 2.2.2)

2. Remove the shroud. (See Figure 8)

3. Re-install the components by referring to the removal procedure, above.

2.3 ELECTRICAL PARTS

2.3.1 OVERLOAD PROTECTOR

1. Remove the cabinet. (Refer to section 2.1.2)

2. Remove the nut which fastens the terminal cover.

3. Remove the terminal cover. (See Figure 9)

4. Remove all the leads from the overload protector.

5. Remove the overload protector.

6. Re-install the components by referring to the removal procedure, above.

2.3.2 COMPRESSOR

1. Remove the cabinet. (Refer to section 2.1.2)

2. Discharge the refrigerant system using a Freon

Recovery System. If there is no valve to attach the recovery system, install one (such as a WATCO A-1) before venting the FreonTM. Leave the valve in place after servicing the system.

3. Remove the overload protector. (Refer to section

2.3.1)

4. After purging the unit completely, unbraze the suction and discharge tubes at the compressor connections.

5. Remove the 3 nuts and the 3 washers which fasten the compressor.

6. Remove the compressor. (See Figure 10)

7. Re-install the components by referring to the removal procedure, above.

Figure 8

Figure 9

Figure 10

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LGE Internal Use Only

2.3.3 CAPACITOR

1. Remove the cabinet. (Refer to section 2.1.2)

2. Remove the screw and the clamp which fastens the capacitor.

3. Disconnect all the leads of capacitor terminals.

4. Re-install the components by referring to the removal procedure, above. (See Figure 11)

2.3.4 POWER CORD

1. Remove the cabinet. (Refer to section 2.1.2)

2. Disconnect the grounding screw from the control box.

3. Disconnect the 2 receptacles.

4. Remove a screw which fastens the clip cord. (See Figure 12)

5. Remove the power cord.

6. Re-install the component by referring to the above removal procedure, above. (Use only one ground-marked hole for ground connection.)

7. If the supply cord of this appliance is damaged, it must be replaced by the special cord. (The special cord means the cord which has the same specification marked on the supply cord attached at the unit.)

2.3.5 THERMOSTAT

1. Remove the cabinet. (Refer to section 2.1.2)

2. Remove the 2 screws which fasten the thermostat.

3. Disconnect 2 leads of thermostat terminals.

4. Remove the thermostat.

5. Re-install the components by refering to the above removal procedure. (See Figure 13)

2.3.6 ROTARY SWITCH

1. Remove the cabinet. (Refer to section 2.1.2)

2. Remove the 2 screws which fasten the rotary switch.

3. Disconnect all the leads of the rotary switch terminals.

4. Remove the rotary switch.

5. Re-install the components by referring to the above removal procedure. (See Figure 14)

Figure 11

Figure 12

Figure 13

Figure 14

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