LG S092CG User manual

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

MODELS: S092CG N40 S092CG U40 S092CG S41 S092CP S41

S122CG N40 S122CG U40 S122CG S41 S122CP S41

S122HG N40 S122HG U40 S122HG S41

S182CG N50 S182CG U50 S182CG S52 S182CP S52

S182HG N50 S182HG U50 S182HG S51

S242CG N50 S242CG U50 S242CG S51 S242CP S51

S242HG N50 S242HG U50 S242HG S51

S092CG N41 S092CG U41 S122DC S40 S122DC S40

S242CG N51 S242CG U51 S122DP S41 S122DP S41

S182CG N51 S182CG U51 S122DH S40 S122DH S40

G122C SR2 S182DP S52 S182DP S52

S182GP S52 S182GP S52

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Only for training and service purposes LGE Internal Use Only

Air Conditioner Service Manual

TABLE OF CONTENTS

LG Model Name ...............................................................................................................................................3

Safety Precautions..........................................................................................................................................5

Dimensions....................................................................................................................................................10

Symbols Used in this Manual...................................................................................................................10

Indoor Unit................................................................................................................................................10

Outdoor Unit.............................................................................................................................................13

Product Specifications .................................................................................................................................16

Installation .....................................................................................................................................................18

Selection of the Best Location..................................................................................................................18

Piping Length and Elevation.....................................................................................................................18

How to Fix Installation Plate.....................................................................................................................19

Drill a Hole in the Wall ..............................................................................................................................19

Drain hose junction...................................................................................................................................19

Flaring work and connection of piping .......................................................................................................20

Flaring work..............................................................................................................................................20

Connection of Piping Indoor.....................................................................................................................20

Connection of the Pipes-Outdoor.............................................................................................................24

Connecting the cable between indoor unit and outdoor unit ...................................................................25

Connect the Cable to the Indoor Unit.......................................................................................................25

Connect the Cable to the Outdoor Unit ....................................................................................................26

Checking the drainage and forming the pipings........................................................................................27

Checking the Drainage.............................................................................................................................27

Form the Piping........................................................................................................................................27

AIR PURGING ................................................................................................................................................28

Air purging................................................................................................................................................28

Air purging with vacuum pump .................................................................................................................28

Test Running .................................................................................................................................................30

Operation .......................................................................................................................................................31

Function of Controls .................................................................................................................................31

Display Function ......................................................................................................................................35

Self-diagnosis Function............................................................................................................................35

Remote Control Operations......................................................................................................................36

Disassembly ..................................................................................................................................................37

Indoor Unit................................................................................................................................................37

Schematic Diagram.......................................................................................................................................40

Electric Control Device.............................................................................................................................40

Wiring Diagram.........................................................................................................................................41

Components Location ..............................................................................................................................45

Troubleshooting Guide .................................................................................................................................47

Refrigeration Cycle Diagram ....................................................................................................................47

2-way, 3-way Valve .................................................................................................................................48

Cycle Parts...............................................................................................................................................54

Electronic Parts ........................................................................................................................................55

Exploded View...............................................................................................................................................62

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Only for training and service purposes LGE Internal Use Only

LG Model Name

2003

12 - 345678910

Code Type Code of Model Meaning

1 Producing Center, A~Z L: Chang-won R22 N: India

Refrigerant A: Chang-won R410A Z: Brazil

C: Chang-won R407C D: Indonesia

T: China M: Mexico

K: Turkey R22 V: Vietnam

E: Turkey R410A S: Out Sourcing

H: Thailand

2 Product Type A~Z S: Split Type Air Conditioner

3 Cooling/Heating/Inverter A~Z C: Cooling only

H: Heat pump

X: C/O + E/Heater

Z: H/P + E/Heater

V: AC Inverter C/O

N: AC Inverter H/P

Q: DC Inverter C/O

W: DC Inverter H/P

4, 5 Capacity 0~9 Cooling/Heating Capacity

Ex. "09" →9,000 Btu/h

6 Electric Range 1~9 1: 115V/60Hz, A: 220V, 50Hz, 3Phase

A~Z 2: 220V/60Hz B: 208~230V, 60Hz, 3Phase

3: 208-230V/60Hz C: 575V, 50Hz, 3Phase

5: 200-220V/50Hz D: 440~460, 60Hz, 3Phase

6: 220-240V/50Hz E: 265V, 60Hz

7: 110V, 50/60Hz F: 200V, 50/60Hz

8: 380-415V/50Hz

9: 380-415V/60Hz

7 Chassis A~Z Name of Chassis of Unit

Ex. LSP →SP Chassis

8 Look A~Z Look,

Color (Artcool Model)

9 Function A~Z

10 Serial No. 1~9 LG Model De

* ARTCOOL COLOR

velopment Serial No.

Basic A

Basic+4Way B

Plasma Filter C

Plasma Filter+4 Way D

Tele+LCD E

Tele+LCD+Nano plasma+4Way F

Nano Plasma F+(A/changeove)+A/clean+Low A G

Nano Plasma F+(A/changeove)+A/clean+4way+Low A H

Tele+LED+4way I

Internet J

Plasma F+4Way+Oxy generator K

Nano Plasma F+(A/changeove)+A/clean L

Nano Plasma F+(A/changeove)+A/clean+4way M

Nano Plasma F+(A/changeove)+A/clean+PTC N

Nano Plasma F+(A/changeove)+Autoclean+4way+PTC P

Nano Plasma F+(A/changeove)+A/clean+4way+Low A+PTC Q

Negative ION+A/Clean R

(Nano)Plasma+Negative ION+A/Clean S

4way+(Nano)Plasma F+Negative ION+Healthy dehumidification+A/Clean

Nano Plasma F+4Way+(A/changeove)+A/clean+ U

R Mirror

W White

B Blue

D Wood

M Metal

C Cherry

- 4 -

Only for training and service purposes LGE Internal Use Only

2004~

12 - 345678910

Code Type Code of Model Meaning

1 Producing Center, A~Z

L Chang_won R22

A Chang_won R410A

C Chang_won R407C

T China

K Turkey R22

E Turkey R410A

H Thailand

N India

Z Brazil

D Indonesia

X Mexico

V Vietnam

S Out sourcing

Refrigerant

2 Product Type A~Z S: Split Type Air Conditioner

3 Cooling/Heating/Inverter A~Z C: Cooling only

H: Heat pump

X: C/O + E/Heater

Z: H/P + E/Heater

V: AC Inverter C/O

N: AC Inverter H/P

Q: DC Inverter C/O

W: DC Inverter H/P

4, 5 Capacity 0~9 Cooling/Heating Capacity

Ex. "09" →9,000 Btu/h

6 Electric Range 1~9 1: 115V/60Hz, A: 220V, 50Hz, 3Phase

A~Z 2: 220V/60Hz B: 208~230V, 60Hz, 3Phase

3: 208-230V/60Hz C: 575V, 50Hz, 3Phase

5: 200-220V/50Hz D: 440~460, 60Hz, 3Phase

6: 220-240V/50Hz E: 265V, 60Hz

7: 110V, 50/60Hz F: 200V

CHASSIS Look

Division

Panel Type(Deluxe)

Fighting 'Look'

(LG1)

(LG2)-SEMI PANEL

OEM1

OEM2

Panel Type(Deluxe)

LG3

, 50/60Hz

8: 380-415V/50Hz

9: 380-415V/60Hz

7 Chassis A~Z Name of Chassis of Unit

Ex. LSP →SP Chassis

8 Look A~Z Look,

Color (Artcool Model)

9 Function A~Z

10 Serial No. 1~9 LG Model De

* ARTCOOL COLOR

velopment Serial No.

R Mirror

W White

B Blue

D Wood

M Metal

C Cherry

S4/S5

Basic A

Basic+4Way B

Plasma Filter C

Plasma Filter+4 Way D

Tele+LCD E

Tele+LCD+Nano plasma+4Way F

NBF F+(A/changeove)+A/clean+Low A G

NBF F+(A/changeove)+A/clean+4way+Low A H

Tele+LED+4way I

Internet J

Plasma F+4Way+Oxy generator K

NBF F+(A/changeove)+A/clean L

NBF F+(A/changeove)+A/clean+4way M

NBF F+(A/changeove)+A/clean+PTC N

NBF F+(A/changeove)+Autoclean+4way+PTC P

NBF F+(A/changeove)+A/clean+4way+Low A+PTC Q

(Nano)Plasma+ION+A/Clean S

4way+(Nano)Plasma F+

Negative ION+Healthy dehumidification

+A/Clean T

Nano Plasma F+4Way+(A/changeove)+A/clean+Oxy generator U

4way+(Nano)Plasma F+Negative ION+Healthy dehumidification+A/Clean+Oxy generator

Dry contact W

Wire remocon 8

- 5 -

Only for training and service purposes LGE Internal Use Only

Safety Precautions

To prevent injury to the user or other people and property damage, the following instructions must

be followed.

■Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is

classified by the following indications.

■Meanings of symbols used in this manual are as shown below.

This symbol indicates the possibility of death or serious injury.

This symbol indicates the possibility of injury or damage to properties only.

Be sure not to do.

Be sure to follow the instruction.

Do not use damaged power cords, plugs, or a

loose socket.

Always use the power plug and socket with the

ground terminal.

• There is risk of fire of electric shock. • There is risk of electric shock.

Install the panel and the cover of control box

securely.

.Do not modify or extend the power cord.

• There is risk of fire of electric shock. • No grounding may cause electric shock.

■Installation

- 6 -

Only for training and service purposes LGE Internal Use Only

Safety Precautions

Do not install the product on a defective instal-

lation stand.

Be sure the installation area does not

deteriorate with age.

• It may cause injury, accident, or damage to the

product.

• If the base collapses, the air conditioner could fall

with it, causing property damage, product failure,

and personal injury.

• Sharp edges could cause injury. Be especially care-

ful of the case edges and the fins on the condenser

and evaporator.

•

There is risk of fire, electric shock, explosion, or injury.

Be cautious when unpacking and installing the

product.

For installation, always contact the dealer or

an Authorized service center

For re-installation of the installed product,

always contact a dealer or an authorized ser-

vice center.

Do not install, remove, or re-install the unit by

yourself.

• There is risk of fire, electric shock, explosion, or

injury.

• There is risk of fire, electric shock, explosion, or

injury.

- 7 -

Only for training and service purposes LGE Internal Use Only

Safety Precautions

■Operation

Do not turn the air-conditioner ON or OFF by

plugging or unplugging the power plug.

Use a dedicated outlet for this appliance.

• There is risk of fire or electrical shock. • There is risk of fire or electrical shock.

Grasp the plug to remove the cord from the

outlet. Do not touch it with wet hands.

Do not place a heater or other appliances near

the power cable.

• There is risk of fire or electrical shock. • There is risk of fire and electric shock.

Do not allow water to run into electrical parts. Do not store or use flammable gas or com-

bustibles near the air conditioner.

• There is risk of fire, failure of the product, or electric

shock.

• There is risk of fire or failure of product.

Wax

Thinner

- 8 -

Only for training and service purposes LGE Internal Use Only

Always check for gas (refrigerant) leakage after

installation or repair of product.

Install the drain hose to ensure that water is

drained away properly.

• Low refrigerant levels may cause failure of product. • A bad connection may cause water leakage.

Keep level even when installing the product. Use two or more people to lift and transport

the air conditioner.

• To avoid vibration or water leakage. • Avoid personal injury.

■Installation

90˚

Unplug the unit if strange sounds, odors, or

smoke comes from it.

Be cautious that water could not enter the

product.

• There is risk of electric shock or fire. • There is risk of fire, electric shock, or product dam-

age.

Safety Precautions

- 9 -

Only for training and service purposes LGE Internal Use Only

Use a soft cloth to clean. Do not use harsh

detergents, solvents, etc.

Do not touch the metal parts of the product

when removing the air filter. They are very

sharp!

• There is risk of fire, electric shock, or damage to the

plastic parts of the product.

• There is risk of personal injury.

Do not step on or put anyting on the product.

(outdoor units)

Do not insert hands or other objects through

the air inlet or outlet while the air conditioner

is plugged in.

• There is risk of personal injury and failure of product. • There are sharp and moving parts that could cause

personal injury.

■Operation

Wax

Safety Precautions

- 10 -

Only for training and service purposes LGE Internal Use Only

Dimensions

Installation plate

W mm 840

H mm 270

D mm 153

Model

Dimension

9k, 12k Btu Series

Indoor Unit

This symbol alerts you to the risk of electric shock.

This symbol alerts you to hazards that could cause harm to the

air conditioner.

This symbol indicates special notes.

NOTICE

Symbols Used in this Manual

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