LG LS-P0760CL User manual

SERVICE MANUAL

Room Air Conditioner

MODEL : LS-P0760CL/P0760HL LS-P0820C

LS-P0960CL/P0960HL

LS-S0960CL/S0960HL LS-S1120C

LS-S1260CL/S1260HL

LS-S1420CL LS-S1421CL

CAUTION

BEFORE SERVICING THE UNIT, READ THE “SAFETY

PRECAUTIONS” IN THIS MANUAL.

Contents

Functions 3

Product Specifications (Cooling Only) 5

Product Specifications (Cooling & Heating) 7

Dimensions 8

Refrigeration Cycle Diagram 10

Wiring Diagram 11

Operation Details 13

Display Function 21

Self-Diagnosis Function 21

Installation 22

Operation 41

Disassembly of the parts (Indoor Unit) 43

2-way, 3-way Valve 46

Cycle Trouble Shooting Guide 53

Electronic Parts Trouble Shooting Guide 54

Electronic Control device 59

Schematic Diagram 63

Exploded View & Replacement Parts List 67

ƒ¡2ƒ¡

Functions

ƒU Room temperature sensor. (THERMISTOR)

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

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

ƒU Restarting is inhibited for approx. 3 minutes.

ƒU 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)

ƒU Intermittent operation of fan at low speed.

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

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

ƒU The fan is switched to intermittent or irregular operation

ƒU

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

ƒU 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

ƒU Both the indoor and outdoor fan

stops during deicing.

ƒU The indoor fan stops until the

evaporator piping temperature

will be reached at 28¡.

Sleep Mode Auto Control

Natural Air Control by CHAOS Logic

Airflow Direction Control

ƒ¡3ƒ¡

Deice (defrost) control (Heating)

Hot-start Control (Heating)

ƒ¡4ƒ¡

Remote Controller

Operation ON/OFF

Reset

Operation Mode Selection

Fan Speed Selection

Room Temperature Display

Temperature Setting

Setting the Time or Time

Timer Selection

Timer Setting

Timer Cancel

Sleep Operation

Airflow Direction Control

(Cooling

model only) (Heating

model only)

TEMPERATURE LOW HIGH

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

Cooling Operation Mode.( )

Soft Dry Operation Mode.( ) Auto Operation Mode.( )

Heating Operation Mode.( )

CHAO

ON OFF

SET

CANCEL

Fan Operation Mode

RESET

: High:39°C LOW:11°C

: Cooling Down to 20°C

Up to 30°C : Heating Down to 16°C

Up to 30°C

: OFF, ON, OFF ON

: Cancel Sleep Mode, Timer ON or Timer OFF.

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

: Cooling Model Only

ƒ¡5ƒ¡

Product Specifications (Cooling Only)

Model Name

Item Unit

Cooling Capacity BTU/h 7,200 7,300 8,400 8,500 8,800 9,000 12,000 12,000

Moisture Removal §⁄/h 1.0 1.2 1.2 1.2

Power Source §j, V, Hz 1§j220-240V, 50Hz

Indoor 4.6 5.3 7.3 8.9

Outdoor 25 25 25 25

Indoor 35 36 37 38 36 37 38

Outdoor 46 47 47 48 47 48 49

Input W 690 715 890 900 730 750 1,180 1,180

Running Current A 3.2 3.2 4.0 3.9 3.4 3.3 5.8 5.4

E.E.R. BTU/h-W 10.4 10.2 9.44 9.44 12.0 12.0 10.17 10.17

Indoor 8 8 10 15

Outdoor 25 25 25 25

Indoor 790¡¿230¡¿142 880¡¿302¡¿183

Outdoor 660¡¿540¡¿260

Indoor 7 7 9.5 9.5

Outdoor 29 29 29 30

Refrigerant (R-22) g 560 490 780 700

Airflow Direction Control (Up & Down) § § § §

Remocon Type L.C.D Wireless

Liquid 1/4" (6.35)

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

Sleeping Operation § § § §

Drain Hose § § § §

Connecting Cable 1.0mm2

Power Cord 1.0mm2

Air Circulation

Noise Level

m3/min

dB (A)¡3

Service Valve

Motor Output

Dimensions

(W¡¿H¡¿D)

Net. Weight

LS-P0760CL LS-P0960CL LS-S0960CL LS-S1260CL

SPEC. AT 220/240V

ƒ¡6ƒ¡

Model Name

Item Unit

Cooling Capacity BTU/h(kcal/h) 7,500(1,900) 11,000(2,772) 13,300(3,350) 14,000(3,550)

Moisture Removal §⁄/h 1.2 2.3 2.3 2.5

Power Source §j, V, Hz 1Ø, 220~V, 60Hz

Indoor 5.5 9.0 9.0 10.1

Outdoor 23 24 24 27

Indoor 36 39 39 39

Outdoor 47 49 49 50

Input W 710 1,050 1,378 1,500

Running Current A 3.3 4.9 6.3 6.9

E.E.R. BTU/h-W 10.6 10.5 9.7 9.3

Indoor 4.5 19.8 19.8 19.8

Outdoor 20 30 30 35

Indoor 790¡¿230¡¿142 880¡¿302¡¿183

Outdoor 660¡¿540¡¿260

Indoor 6 9.5 9.5 9.5

Outdoor 29 31.5 33.5 31.5

Refrigerant (R-22) g 600 710 980 750

Airflow Direction Control (Up & Down) § § § §

Remocon Type L.C.D Wireless

Liquid 1/4" (6.35)

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

Sleeping Operation §

Drain Hose §

Connecting Cable 1.0mm2

Power Cord 1.0mm2

Air Circulation

Noise Level

m3/min

dB (A)¡3

Service Valve

Motor Output

Dimensions

(W¡¿H¡¿D)

Net. Weight

LS-P0820CL LS-S1120CL LS-S1420CL LS-S1421CL

SPEC. AT 220V

ƒ¡7ƒ¡

Product Specifications (Cooling & Heating)

Model Name

Item Unit

Cooling 7,000 7,000 8,400 8,500 9,400 9,500 11,700 12,000

Heating 7,300 7,500 9,400 9,500 10,200 10,500 12,600 13,000

Moisture Removal §⁄/h 1.3 1.17 1.2 1.2

Power Source §j, V, Hz 1§j220-240V, 50Hz

Indoor 5.3 6.3 7.6 8.9

Outdoor 24 25 25 25

Indoor 36 38 36 37 37 38

Outdoor 47 49 47 48 48 49

Cooling 710 720 910 940 940 950 1,210 1,250

Heating 730 740 940 990 900 950 1,160 1,230

Cooling 3.1 4.5 4.5 6.4 6.2

Heating 3.3 4.5 4.5 6.2 6.0

E.E.R. Cooling BTU/h¡⁄w 9.86 9.7 9.23 9.0 10.0 10.0 9.7 9.6

C.O.P Heating W/W 2.93 2.97 2.93 2.81 3.32 3.2 3.2 3.1

Indoor 8 8 10 15

Outdoor 25 25 25 25

Indoor 790¡¿230¡¿142 880¡¿302¡¿183

Outdoor 660¡¿540¡¿260

Indoor 7 7 9.5 9.5

Outdoor 30 31 31 33

Refrigerant (R-22) g 600 540 1,020 1,150

Airflow Direction Control (Up & Down) § § § §

Remocon Type L.C.D Wireless

Liquid 1/4" (6.35)

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

Sleeping Operation § § § §

Drain Hose § § § §

Connecting Cable 1.0mm2

Power Cord 1.0mm2

Air Circulation

Noise Level

Input

Running

Current

Capacity BTU/h

Service Valve

Motor Output

Dimensions

(W¡¿H¡¿D)

Net. Weight

m3/min

dB (A)¡3

LS-P0760HL LS-P0960HL LS-S0960HL LS-S1260HL

SPEC. AT 220/240V

Dimensions

(1) Indoor Unit

ƒ¡8ƒ¡

Installation plate

Hole for piping

Tubing hole cover

Installation plate

Hole for piping

Tubing hole cover

MODEL

DIM

W mm 790 880

H mm 230 302

D mm 142 183

LS-P0760CL/P0760HL/P0820CL

LS-P0960CL/P0960HL LS-S0960CL/S0960HL/S1120CL

LS-S1260CL/S1260HL/S1420CL/S1421CL

LS-P0760CL/P0760HL

LS-P0820CL

LS-P0960CL/P0960HL

LS-S0960CL/S0960HL

LS-S1120CL

LS-S1260CL/S1260HL

LS-S1420CL/S1421CL

(2) Outdoor Unit

W L2

Liquid side (2-way valve)

Gas side (3-way valve)

MODEL

DIM

W mm 660

H mm 540

D mm 260

L1 mm 297

L2 mm 66

L3 mm 447

L4 mm 17

L5 mm 82

LS-P0760CL/P0760HL, LS-P0820CL, LS-P0960CL/P0960HL

LS-S0960CL/S0960HL, LS-S1120CL, LS-S1260CL/S1260HL

LS-S1420CL, LS-S1421CL

ƒ¡9ƒ¡

Refrigeration Cycle Diagram

ƒ¡10ƒ¡

Pipe size(Diameter:§j)MAX. Max

MODEL Piping length Elevation

Gas Liquid (m) (m)

LS-P0760CL/P0760HL

LS-P0820CL 3/8" 1/4" 7 5

LS-P0960CL/P0960HL

LS-S0960CL/S0960HL

LS-S1120CL

LS-S1260CL/S1260HL

LS-S1420CL/S1421CL

INDOOR UNIT OUTDOOR UNIT

HEAT

EXCHANGE

(EVAPORATOR)

HEAT

EXCHANGE

(CONDENSOR)

COMPRESSOR

ACCUMU

LATOR

GAS SIDE

3-WAY VALVE

LIQUID SIDE

2-WAY VALVE

CAPILLARY TUBE

COOLING

HEATING

REVERSING

VALVE

(Heating Model Only)

1/2" 1/4" 7 5

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