LG LS-K1820CL Manuel utilisateur

Room Air Conditioner

SVC MANUAL(Exploded View)

CAUTION

Before Servicing the unit, read the safety precautions in General SVC manual.

Only for authorized service personnel.

Internal Use Only

http://biz.lgservice.com

MODEL :

LS-K1820CL/CM/HL/HM

LS-K1822CL/CM/HL

LS-K1860CL/CM/CN/HL/HM/HN

LS-K1861CL/HL/HM

LS-K1862CL/HL/HM

LS-K1865HL/HM/HN

LS-K1866HL

LS-K2460CL/CM/CN/HL/HM/HN

LS-K2462CL/HL

LS-K2420CL/CM/HL/HM

LS-K2422CL/CM/HL

LS-K2621

LS-K2661CL/HL/HM

LS-K2662CL/HL/HM

LS-K1863DL

LS-K1865EL

LS-K1866EL

LS-K2422AL

- 2 -

Only for training and service purposes LGE Internal Use Only

Contents

Functions .................................................................................................................................3

Product Specifications ..........................................................................................................5

Dimensions............................................................................................................................12

Refrigeration Cycle Diagram................................................................................................14

Pipe Length and the Elevation .............................................................................................16

Wiring Diagram......................................................................................................................17

Operation Details ..................................................................................................................21

Display Function ...................................................................................................................29

Self-diagnosis Function........................................................................................................29

Installation .............................................................................................................................30

Operation ...............................................................................................................................43

Disassembly of the parts (Indoor Unit) ...............................................................................45

2-way, 3-way Valve.................................................................................................................51

Cycle Troubleshooting Guide...............................................................................................58

Electronic Parts Troubleshooting Guide.............................................................................59

Electronic Control Device.....................................................................................................65

Schematic Diagram ...............................................................................................................67

Exploded View.......................................................................................................................69

- 3 -

Only for training and service purposes LGE Internal Use Only

Functions

• Room temperature sensor. (THERMISTOR)

• Maintains the room temperature in accordance with the Setting Temp.

• Indoor fan is delayed for 5 sec at the starting.

• Restarting is inhibited for approx. 3 minutes.

• High, Med, Low

--- Lights up in operation

--- Lights up in Sleep Mode

--- Lights up in Timer Mode

--- Lights up in Deice Mode (for Heating Model)

OUTDOOR --- Lights up in compressor operation (for Cooling Model)

• Intermittent operation of fan at low speed.

• The fan is switched to low(Cooling), med(Heating) speed.

• The unit will be stopped after 1, 2, 3, 4, 5, 6, 7 hours.

• The fan is switched to intermittent or irregular operation

•

The fan speed is automatically switched from high to low speed.

• The louver can be set at the desired position or swing

up and down automatically.

Indoor Unit

Operation ON/OFF by Remote controller

Sensing the Room Temperature

Room temperature control

Starting Current Control

Time Delay Safety Control

Indoor Fan Speed Control

Operation indication Lamps (LED)

Soft Dry Operation Mode

• Both the indoor and outdoor fan

stops during deicing.

• The indoor fan stops until the

evaporator piping temperature will be

reached at 28°C.

Sleep Mode Auto Control

Natural Air Control by CHAOS Logic

Airflow Direction Control

Deice (defrost) control (Heating)

Hot-start Control (Heating)

- 4 -

Only for training and service purposes LGE Internal Use Only

Healthy Dehumidification Operation Mode.

( )

Remote Controller

Operation ON/OFF

Reset

Operation Mode Selection

Temperature Setting

Timer Selection

Timer Setting

JET COOL

Timer Cancel

Sleep Operation

Airflow Direction Control

(Cooling

model only) (Heating

model only)

TEMPERATURE LOW HIGH

Cooling Operation Mode.( )

Heating Operation Mode.( )

Auto Operation Mode.( )

Fan Operation Mode

Horizontal Airflow Direction Control Button(Option)

Room, Temperature Display

Setting the Time or Timer

PLASMA(Option)/NEGATIVE ION(Option)

ON OFF

SET

PLASMA

CANCEL

Fan Speed Selection

(Low) (Med) (High) (CHAOS)

: (High:39°C Low:11°C)

: OFF, ON, OFF ON

: Cancel Sleep Mode, Timer ON or Timer OFF

: 1, 2, 3, 4, 5, 6, 7, Off Timer

: Fan Operates without cooling or heating.

Cooling Down to 18°C

Up to 30°CHeating Down to 16°C

Up to 30°C

- 5 -

Only for training and service purposes LGE Internal Use Only

Product Specifications

Cooling Capacity BTU/h(kcal/h)

Heating Capacity BTU/h(kcal/h)

Moisture Removal l/h

Power Source Ø, V, Hz

Air Circulation m3/min

Noise Level dB(A)±3

Input W

Runnig Current

Starting Current

E.E.R. BTU/h-W

C.O.P W/W

Motor Output W

Net. Weight kg

Refrigerant(R-22) g

Airflow Direction Control (Up & Down)

Airflow Direction Control (Right & Left)

Negative lon

Air Purifying Filter

Deicer

Hot Start

Chaos Wind

Micom Dry

Timer

Self Diagnosis

Remocon type

Service valve

Sleeping Operation

Drain Hose

Connecting Cable

Power Cord

18,000(4,536)

5,274

2.5

1Ø, 220-240V, 50Hz

1,900

8.8

9.5

1,080 x 314 x 181

870 x 655 x 320

820

YES

NO(OPTION)

YES

24hr ON/OFF

YES

L.C.D Wireless

1/4"(6.35)

1/2"(12.7)

YES

1.5mm

18,000(4,536)

5,274

19,000(4,788)

5,564

2.5

1Ø, 220-240V, 50Hz

1,950

8.7

9.2

2.86

1,080 x 314 x 181

870 x 655 x 320

1,270

YES

NO(OPTION)

YES

24hr ON/OFF

YES

L.C.D Wireless

1/4"(6.35)

1/2"(12.7)

YES

1.5, 0.75mm

1.5mm

18,000(4,536)

5,274

2.5

1Ø, 220V, 60Hz

1,900

8.9

9.47

1,080 x 314 x 181

870 x 655 x 320

870

YES

24hr ON/OFF

YES

L.C.D Wireless

1/4"(6.35)

5/8"(15.88)

YES

1.5mm

18,000(4,536)

5,274

19,000(4,788)

5,564

2.5

1Ø, 220V, 60Hz

1,800

1,900

8.5

8.9

10.0

2.93

1,080 x 314 x 181

870 x 655 x 320

1,360

YES

24hr ON/OFF

YES

L.C.D Wireless

1/4"(6.35)

5/8"(15.88)

YES

1.5, 0.75mm

1.5mm

18,000(4,536)

5,274

2.5

1Ø, 220~240V, 50Hz

1,610

7.0

9.5

1,080 x 314 x 181

870 x 655 x 320

800

YES

24hr ON/OFF

YES

L.C.D Wireless

1/2"(12.7)

5/8"(15.88)

YES

1.5mm

Model Name

Unit

Indoor

Outdoor

Indoor

Outdoor

Cooling

Heating

Cooling

Heating

Cooling

Heating

Cooling

Heating

Indoor

Outdoor

Indoor

Outdoor

Indoor

Outdoor

Liquid

Gas

Dimensions

(W x H x D)

Item

LS-

K1860CL/CM/CN

LS-

K1860HL/HM/HN

LS-

K1820CL/CM/CN

LS-

K1820HL/HM/HN LS-K1863DL

- 6 -

Only for training and service purposes LGE Internal Use Only

Cooling Capacity BTU/h(kcal/h)

Heating Capacity BTU/h(kcal/h)

Moisture Removal l/h

Power Source Ø, V, Hz

Air Circulation m3/min

Noise Level dB(A)±3

Input W

Runnig Current

Starting Current

E.E.R. BTU/h-W

C.O.P W/W

Motor Output W

Net. Weight kg

Refrigerant(R-22) g

Airflow Direction Control (Up & Down)

Airflow Direction Control (Right & Left)

Negative lon

Air Purifying Filter

Plasma Filter

Deicer

Hot Start

Chaos Wind

Micom Dry

Timer

Self Diagnosis

Remocon type

Service valve

Sleeping Operation

Drain Hose

Connecting Cable

Power Cord

18,000(4,536)

5,274

2.5

1Ø, 220-240V, 50Hz

1,900

8.8

9.5

1,080 x 314 x 181

870 x 655 x 320

820

YES

24hr ON/OFF

YES

L.C.D Wireless

1/4"(6.35)

1/2"(12.7)

YES

1.5mm2

18,000(4,536)

5,274

19,000(4,788)

5,564

2.5

1Ø, 220-240V, 50Hz

1,950

8.7

9.2

2.86

1,080 x 314 x 181

870 x 655 x 320

1,270

YES

24hr ON/OFF

YES

L.C.D Wireless

1/4"(6.35)

1/2"(12.7)

YES

1.5, 0.75mm2

1.5mm2

18,000(4,536)

5,274

19,000(4,788)

5,564

2.5

1Ø, 220-240V, 50Hz

1,950

9.2

2.86

1,080 x 314 x 181

870 x 655 x 320

1,470

YES

NO(OPTION)

YES

24hr ON/OFF

YES

L.C.D Wireless

1/4"(6.35)

1/2"(12.7)

YES

1.5, 0.75mm2

1.5mm2

18,000(4,536)

5,274

19,000(4,788)

5,564

2.5

1Ø, 220-240V, 50Hz

1,950

9.2

2.86

1,080 x 314 x 181

870 x 655 x 320

1,470

YES

NO(OPTION)

YES

24hr ON/OFF

YES

L.C.D Wireless

1/4"(6.35)

1/2"(12.7)

YES

1.5, 0.75mm2

1.5mm2

Model Name

Unit

Indoor

Outdoor

Indoor

Outdoor

Cooling

Heating

Cooling

Heating

Cooling

Heating

Cooling

Heating

Indoor

Outdoor

Indoor

Outdoor

Indoor

Outdoor

Liquid

Gas

Dimensions

(W x H x D)

Item

LS-

K1861CL/CM/CN

LS-

K1865HL/HM/HN

LS-

K1866HL/HM/HN

LS-

K1861HL/HM/HN

- 7 -

Only for training and service purposes LGE Internal Use Only

Cooling Capacity BTU/h(kcal/h)

Heating Capacity BTU/h(kcal/h)

Moisture Removal l/h

Power Source Ø, V, Hz

Air Circulation m3/min

Noise Level dB(A)

Input W

Runnig Current

Starting Current

E.E.R. BTU/h-W

C.O.P W/W

Motor Output W

Net. Weight kg

Refrigerant(R-22) g

Airflow Direction Control (Up & Down)

Airflow Direction Control (Right & Left)

Negative lon

Air Purifying Filter

Deicer

Hot Start

Chaos Wind

Micom Dry

Timer

Self Diagnosis

Remocon type

Service valve

Sleeping Operation

Drain Hose

Connecting Cable

Power Cord

24,000(6,048)

7,032

2.5

1Ø, 220-240V, 50Hz

2,470

11.3

9.7

1,080 x 314x 181

870 x 655 x 320

1,520

YES

NO(OPTION)

YES

24hr ON/OFF

YES

L.C.D Wireless

3/8"(9.52)

5/8"(15.88)

YES

2.5mm2

24,000(6,048)

7,032

24,000(6,040)

7,032

2.5

1Ø, 220-240V, 50Hz

2,670

2,610

12.2

11.9

9.0

2.635

1,080 x 314 x 181

870 x 655 x 320

1,300

YES

NO(OPTION)

YES

24hr ON/OFF

YES

L.C.D Wireless

3/8"(9.52)

5/8"(15.88)

YES

2.5, 0.75mm2

2.5mm2

24,000(6,048)

7,032

3.5

1Ø, 220V, 60Hz

15.5

42±3

54±3

2,100

9.8

10.5

1,080 x 314 x 181

870 x 655 x 320

1,580

YES

NO(OPTION)

YES

24hr ON/OFF

YES

L.C.D Wireless

1/4"(6.35)

5/8"(15.88)

YES

2.5mm2

24,000(6,048)

7,032

24,000(6,048)

7,032

3.5

1Ø, 220V, 60Hz

44±3

55±3

2,525

12.0

9.5

2.78

1,080 x 314 x 181

870 x 655 x 320

1,610

YES

NO(OPTION)

YES

24hr ON/OFF

YES

L.C.D Wireless

1/4"(6.35)

5/8"(15.88)

YES

2.5, 0.75mm2

2.5mm2

Model Name

Unit

Indoor

Outdoor

Indoor

Outdoor

Cooling

Heating

Cooling

Heating

Cooling

Heating

Cooling

Heating

Indoor

Outdoor

Indoor

Outdoor

Indoor

Outdoor

Liquid

Gas

Dimensions

(W x H x D)

Item

LS-

K2460CL/CM/CN

LS-

K2460HL/HM/HN

LS-

K2420CL/CM/CN

LS-

K2420HL/HM/HN

- 8 -

Only for training and service purposes LGE Internal Use Only

Cooling Capacity BTU/h(kcal/h)

Heating Capacity BTU/h(kcal/h)

Moisture Removal l/h

Power Source Ø, V, Hz

Air Circulation m3/min

Noise Level dB(A)

Input W

Runnig Current

Starting Current

E.E.R. BTU/h-W

C.O.P W/W

Motor Output W

Net. Weight kg

Refrigerant(R-22) g

Airflow Direction Control (Up & Down)

Airflow Direction Control (Right & Left)

Negative lon

Air Purifying Filter

Deicer

Hot Start

Chaos Wind

Micom Dry

Timer

Self Diagnosis

Remocon type

Service valve

Sleeping Operation

Drain Hose

Connecting Cable

Power Cord

26,000

7,032

2.5

1Ø, 220-240V, 50Hz

2,470

11.3

9.7

1,080 x 314 x 181

870 x 655 x 320

1,520

YES

24hr ON/OFF

YES

L.C.D Wireless

3/8"(9.52)

5/8"(15.88)

YES

2.5mm2

26,000

7,032

24,000(6,040)

7,032

2.5

1Ø, 220-240V, 50Hz

2,670

2,610

12.2

11.9

9.0

2.635

1,080 x 314 x 181

870 x 655 x 320

1,300

YES

24hr ON/OFF

YES

L.C.D Wireless

3/8"(9.52)

5/8"(15.88)

YES

2.5, 0.75mm2

2.5mm2

26,000

7,032

3.5

1Ø, 220V, 60Hz

15.5

42±3

54±3

2,100

9.8

10.5

1,080 x 314 x 181

870 x 655 x 320

1,580

YES

24hr ON/OFF

YES

L.C.D Wireless

1/4"(6.35)

5/8"(15.88)

YES

2.5mm2

26,000

7,032

24,000(6,048)

7,032

3.5

1Ø, 220V, 60Hz

44±3

55±3

2,525

12.0

9.5

2.78

1,080 x 314 x 181

870 x 655 x 320

1,610

YES

24hr ON/OFF

YES

L.C.D Wireless

1/4"(6.35)

5/8"(15.88)

YES

2.5, 0.75mm2

2.5mm2

Model Name

Unit

Indoor

Outdoor

Indoor

Outdoor

Cooling

Heating

Cooling

Heating

Cooling

Heating

Cooling

Heating

Indoor

Outdoor

Indoor

Outdoor

Indoor

Outdoor

Liquid

Gas

Dimensions

(W x H x D)

Item

LS-

K2661CL/CM/CN

LS-

K2661HL/HM/HN

LS-

K2621CL/CM/CN

LS-

K2621HL/HM/HN

- 9 -

Only for training and service purposes LGE Internal Use Only

Cooling Capacity BTU/h(kcal/h)

Heating Capacity BTU/h(kcal/h)

Moisture Removal l/h

Power Source Ø, V, Hz

Air Circulation m3/min

Noise Level dB(A)±3

Input W

Runnig Current

Starting Current

E.E.R. BTU/h-W

C.O.P W/W

Motor Output W

Net. Weight kg

Refrigerant(R-22) g

Airflow Direction Control (Up & Down)

Airflow Direction Control (Right & Left)

Negative lon

Air Purifying Filter

Plasma Filter

Soft Start

Deicer

Hot Start

Chaos Wind

Micom Dry

Timer

Self Diagnosis

Remocon type

Service valve

Sleeping Operation

Drain Hose

Connecting Cable

Power Cord

18,000(4,536)

5,274

2.5

1Ø, 220-240V, 50Hz

1,900

8.8

9.5

1,080 x 314 x 181

870 x 655 x 320

820

YES

24hr ON/OFF

YES

L.C.D Wireless

1/4"(6.35)

1/2"(12.7)

YES

1.5mm2

18,000(4,536)

5,274

19,000(4,788)

5,564

2.5

1Ø, 220-240V, 50Hz

1,950

8.7

9.2

2.86

1,080 x 314 x 181

870 x 655 x 320

1,270

YES

24hr ON/OFF

YES

L.C.D Wireless

1/4"(6.35)

1/2"(12.7)

YES

1.5, 0.75mm2

1.5mm2

24,000(6,048)

7,032

2.5

1Ø, 220-240V, 50Hz

2,470

11.3

9.7

1,080 x 314 x 181

870 x 655 x 320

1,520

YES

24hr ON/OFF

YES

L.C.D Wireless

3/8"(9.52)

5/8"(15.88)

YES

2.5mm2

24,000(6,048)

7,032

24,000(6,048)

7,032

2.5

1Ø, 220-240V, 50Hz

2,670

2,610

12.2

11.9

9.0

2.635

1,080 x 314 x 181

870 x 655 x 320

1,550

YES

24hr ON/OFF

YES

L.C.D Wireless

3/8"(9.52)

5/8"(15.88)

YES

2.5, 0.75mm2

2.5mm2

Model Name

Unit

Indoor

Outdoor

Indoor

Outdoor

Cooling

Heating

Cooling

Heating

Cooling

Heating

Cooling

Heating

Indoor

Outdoor

Indoor

Outdoor

Indoor

Outdoor

Liquid

Gas

Dimensions

(W x H x D)

Item

LS-

K1862CL/CM/CN

LS-

K1862HL/HM/HN

LS-

K2462CL/CM/CN

LS-

K2462HL/HM/CN

- 10 -

Only for training and service purposes LGE Internal Use Only

Cooling Capacity BTU/h(kcal/h)

Heating Capacity BTU/h(kcal/h)

Moisture Removal l/h

Power Source Ø, V, Hz

Air Circulation m3/min

Noise Level dB(A)

Input W

Runnig Current

Starting Current

E.E.R. BTU/h-W

C.O.P W/W

Motor Output W

Net. Weight kg

Refrigerant(R-22) g

Airflow Direction Control (Up & Down)

Airflow Direction Control (Right & Left)

Negative lon

Air Purifying Filter

Deicer

Hot Start

Chaos Wind

Micom Dry

Timer

Self Diagnosis

Remocon type

Service valve

Sleeping Operation

Drain Hose

Connecting Cable

Power Cord

24,000(6,048)

7,032

3.5

1Ø, 220V, 60Hz

15.5

42±3

54±3

2,100

9.8

10.5

1,080 x 314 x 181

870 x 655 x 320

1,580

YES

24hr ON/OFF

YES

L.C.D Wireless

1/4"(6.35)

5/8"(15.88)

YES

2.5mm2

24,000(6,048)

7,032

24,000(6,048)

7,032

3.5

1Ø, 220V, 60Hz

44±3

55±3

2,525

12.0

9.5

2.78

1,080 x 314 x 181

870 x 655 x 320

1,610

YES

24hr ON/OFF

YES

L.C.D Wireless

1/4"(6.35)

5/8"(15.88)

YES

2.5, 0.75mm2

2.5mm2

18,000(4,536)

5,274

2.5

1Ø, 220V, 60Hz

1,900

8.9

9.47

1,080 x 314 x 181

870 x 655 x 320

870

YES

24hr ON/OFF

YES

L.C.D Wireless

1/4"(6.35)

5/8"(15.88)

YES

1.5mm2

18,000(4,536)

5,274

19,000(4,788)

5,564

2.5

1Ø, 220V, 60Hz

1,800

1,900

8.5

8.9

10.0

2.93

1,080 x 314 x 181

870 x 655 x 320

1,360

YES

24hr ON/OFF

YES

L.C.D Wireless

1/4"(6.35)

5/8"(15.88)

YES

1.5, 0.75mm2

1.5mm2

Model Name

Unit

Indoor

Outdoor

Indoor

Outdoor

Cooling

Heating

Cooling

Heating

Cooling

Heating

Cooling

Heating

Indoor

Outdoor

Indoor

Outdoor

Indoor

Outdoor

Liquid

Gas

Dimensions

(W x H x D)

Item

LS-

K2422CL/CM/CN

LS-

K2422HL/HM/HN

LS-

K1822CL/CM/CN

LS-

K1822HL/HM/HN

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