LG LS-B0760CM/B0760HM Manuel utilisateur

Room Air Conditioner

SERVICE MANUAL

MODEL : LS-B0760CM/B0760HM

LS-B0960CM/B0960HM

LS-B0962CM/B0962HM

LS-B0962CD/B0962HD

LS-B0960CD/B0960HD

LS-C1260CM/C1260HM

LS-C1260CD/C1260HD

LS-C1120CM/C1420CM

LS-C1420CN

CAUTION

BEFORE SERVICING THE UNIT,

READ THE "SAFETY PRECAUTIONS" IN THIS MANUAL.

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

Product Specifications (Cooling Only) ...................................................................................... 5

Product Specifications (Cooling & Heating).............................................................................. 6

Dimensions................................................................................................................................... 7

Maximum Length of Pipe and Freon Extra Charge................................................................... 9

Refrigeration Cycle Diagram..................................................................................................... 10

Wiring Diagram .......................................................................................................................... 11

Operation Details ....................................................................................................................... 13

Display Function........................................................................................................................ 20

Self-diagnosis Function ............................................................................................................ 20

Installation.................................................................................................................................. 21

Operation.................................................................................................................................... 39

Disassembly of the parts(Indoor Unit)..................................................................................... 41

2-way, 3-way Valve ..................................................................................................................... 44

Cycle Troubleshooting Guide ................................................................................................... 51

Electronic Parts Troubleshooting Guide.................................................................................. 52

Electronic Control Device ......................................................................................................... 56

Schematic Diagram.................................................................................................................... 59

Exploded View & Replacement Parts List ............................................................................... 61

- 2 -

Contents

- 3 -

Functions

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

Sleep Mode Auto Control

Auto Air Control by CHAOS Logic

Airflow Direction Control

AUTO Wind

Deice(defrost) control(Heating)

Hot-start Control(Heating)

• Room temperature sensor(THERMISTOR).

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

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

• Restarting is inhibited for approx. 3 minutes.

• High, Med, Low, Chaos or Auto

• Intermittent operation of fan at low speed

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

and down, right and left (not on all models) automatically.

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

• Both the indoor and outdoor fan stops

during deicing.

• Hot start after deice ends.

• The indoor fan stops until the

evaporator piping temperature will be

reached at 28°C.

• 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.

--- Lights up in Operation

--- Lights up in Sleep Mode

--- Lights up in Timer Mode

--- Lights up in Deice Mode or Hot Start Mode (only Heating Model)

--- Lights during in compressor running (for Cooling Model)

OUT

DOOR

- 4 -

TEMPERATURETEMPERATURE LOWLOW HIGHHIGH

Remote Controller

Operation ON/OFF

(Cooling model only) (Heatling model only)

Cooling Operation Mode ( )

Soft Dry Operation Mode ( )

(Low) (Med)

(High)

(AUTO WIND)

(CHAOS)

: High: 39°C LOW : 11°C

Down to 18°C

Up to 30°C,

Cooling

: 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.

Auto Operation Mode ( )

Heating Operation Mode ( )

Operation Mode Selection

Fan Speed Selection

Room, Temperature Display

Temperature Setting

Setting the Time or timer

Timer Selection

Timer Setting

Timer Cancel

Sleep Operation

Airflow Direction Control

Fan Operation Mode

Reset

Down to 16°C

Up to 30°C,

Heating

Cooling 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 A

E.E.R. BTU/h-W

Motor Output W

Net. Weight kg

Refrigerant(R-22) g

Airflow Direction Control (Up & Down)

Remocon type

Service valve

Sleeping Operation

Drain Hose

Connecting Cable

Power Cord

- 5 -

Product Specifications (Cooling Only)

7,300(1,840) 8,700(2,190) 8,700(2,190) 11,000(2,770) 12,000(3,020) 14,000(3,528)

1.0 1.2 1.2 1.2 1.7 1.7

1Ø, 220-240V, 50Hz

1Ø, 220V~,60Hz

1Ø, 220-240V,50Hz

1Ø, 220V~,60Hz

4.85 5.3 5.3 8.5 10.2 9.5

25 25 25 25 25 25

36±339±338±339±341±341±3

47±349±349±349±350±350±3

755 920 920 1,050 1,140 1,270

3.2 4.0 4.0 4.9 5.0 5.9

9.7 9.5 9.5 10.5 10.5 11

7 1010101515

25 25 25 25 25 25

810 x 220.5 x 152 900 x 290 x 183

660 x 540 x 260 801 x 555 x 262

6.5 6.5 6.5 10 10 10

27 27 27 33 33 35

540 670 690 1,080 840 980

OOOOOO

L.C.D Wireless

1/4"(6.35) 1/4"(6.35)

3 /8"(9.52) 3/8"(9.52) 1/2"(12.7)

OOOOOO

O OOOO

1.0mm2

Model Name

Unit

Indoor

Outdoor

Indoor

Outdoor

Indoor

Outdoor

Indoor

Outdoor

Indoor

Outdoor

Liquid

Gas

Dimensions

(W x H x D)

Item

LS-B0760CM LS-B0960CD

LS-B0960CM LS-B0962CD

LS-B0962CM LS-C1120CM LS-C1260CD

LS-C1260CM LS-C1420CM

LS-C1420CN

- 6 -

Product Specifications (Cooling & Heating)

Cooling Capacity

Heating Capacity

Moisture Removal ℓ/h

Power Source Ø, V, Hz

Air Circulation m3/min

Noise Level dB(A)

Input W

Runnig 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)

Remocon Type

Service Valve

Sleeping Operation

Drain Hose

Connecting Cable

Power Cord

7,000(1,764) 8,500(2,142) 8,500(2,142) 12,000(3,020)

7,500(1,890) 9,500(2,394) 9,500(2,394) 12,500(3,150)

1.0 1.2 1.2 1.7

1Ø, 220-240V, 50Hz

4.85 5.3 5.6 10.2

25 25 25 25

36±339±340±141±3

47±349±350±151±3

760 940 895 1,250

780 1,030 950 1,100

3.2 4.1 3.8 5.5

3.3 4.4 4.1 4.8

9.2 9.0 9.5 9.6

2.82 2.7 2.76 3.3

710 10 15

25 25 25 25

810 x 220.5 x 152

900 x 290 x 183

660 x 540 x 260

810 x 555 x 262

6.5 6.5 6.5 10

30 30 30 35

590 690 720 810

OOOO

L.C.D Wireless

1/4"(6.35)

3/8"(9.52) 1/2"(12.7)

OOOO

1.0mm2

Model Name

Unit

Indoor

Outdoor

Indoor

Outdoor

Cooling

Heating

Cooling

Heating

Cooling

Heating Indoor

Outdoor

Indoor

Outdoor

Indoor

Outdoor

Liquid

Gas

Dimensions

(W x H x D)

Item

LS-B0760HM LS-B0960HD

LS-B0960HM LS-B0962HD

LS-B0962HM LS-C1260HD

LS-C1260HM

BTU/h(kcal/h)

- 7 -

Dimensions

(1) Indoor Unit

4.5cm

4cm

8cm

2cm

W W

Installation plate

Tubing hole cover

Installation plate

Hole for piping

(7K, 9K) (11K, 12K, 14K)

MODEL 7K, 9K BTU 11K, 12K, 14K BTU

DIM Series Series

W mm 810 900

H mm 220.5 290

D mm 152 183

- 8 -

L5L6 L7 L8

L9 L10

Liquid side

2-way valve

Gas side

3-way valve

(2) Oudoor Unit (7K, 9K, 11K, 12K, 14K)

MODEL 7K, 9K, 11K BTU Series 12K, 14K BTU Series

DIM

W mm 660 801

H mm 540 555

D mm 260 262

L1 mm 297 339

L2 mm 18.5 37

L3 mm 523 543.6

L4 mm 17 11.4

L5 mm 447 591

L6 mm 76.5 105

L7 mm 76.5 105

L8 mm 66 72.5

L9 mm 82 86.4

L10 mm 77 77

- 9 -

Maximum Length of Pipe and Freon Extra Charge

Charge amount per 1m

Oil trap

Outdoor unit

Indoor unit

Capacity STANDARD MAXIMUM LENGTH Charge amount (g)

(Btu/h) LENGTH(m) AB

per 1m

~7000 4 7 15 20

~9000 4 7 15 20

~12000 4 7 15 20

~18000 5 15 30(25) 40

~24000 5 15 25 40

* A, B mean indoor unit higher located than outdoor unit

* Capicity is based on standard length and maximum allowance length is the basis of relia-

bility.

* Oil trap should be installed per 10 meters.

* Numerical value in "( )" is for Rotary Comp. model.

- 10 -

Refrigeration Cycle Diagram

INDOOR UNIT

HEAT

EXCHANGE

(EVAPORATOR) HEAT

EXCHANGE

(CONDENSER)

COMPRESSOR COOLING

HEATING

ACCUMU-

LATOR REVERSING

VALVE

GAS SIDE

CAPILLARY TUBE

LIQUID SIDE

2-WAY VALVE

3-WAY VALVE

OUTDOOR UNIT

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