LG Art Cool Gallery Series Bedienungsanleitung

Room Air Conditioner

SVC MANUAL(General)

MODEL : ARTCOOL-Inverter Type

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

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Only for training and service purposes LGE Internal Use Only

Air Conditioner Service Manual

CONTENTS

Part 1 General Information

1. Safety Precautions........................................................................................................3

2. Nomenclature ...............................................................................................................6

Part 2 Functions & Controls

1. List of Functions & Controls........................................................................................8

2. Basic Mode Controls .................................................................................................10

3. Special Mode Controls ...............................................................................................12

4. Utility Functions .........................................................................................................13

5. Protection Functions & Controls...............................................................................18

Part 3 Test Run

1. Check before Test Run ...............................................................................................25

2. Test Run Flow Chart ..................................................................................................26

3. Test Run Detail ...........................................................................................................27

Part 4 Trouble Shooting Guide ...............................................................................................28

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Only for training and service purposes LGE Internal Use Only

1. Safety Precautions ............................................................................................................3

2. Nomenclature......................................................................................................................6

Part 1 General Information

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Only for training and service purposes LGE Internal Use Only

1. Safety Precautions

1.1 Cautions in Repair

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 follow-

ing indications.

This symbol indicates the possibility of death or serious injury.

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

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

Be sure not to do.

Be sure to follow the instruction.

Dangerous Voltage

Be sure to disconnect the power cable plug from the plug socket before disas-

sembling the equipment for a repair.Internal components and circuit boards are at

main potential when the equipment is connected to the power cables. This volt-

age is extremely dangerous and may cause death or severe injury if come in con-

tact with it.

Do not touch the discharging refrigerant gas during the repair work.

The discharging refrigerant gas.The refrigerant gas can cause frostbite.

Release the refrigerant gas completely at a well-ventilated place first.

Otherwise, when the pipe is disconnected, refrigerant gas or refrigerating

machine oil discharges and it Can cause injury.

When the refrigerant gas leaks during work, execute ventilation. If the refrigerant

gas touches to a fire, poisonous gas generates. A case of leakage of the refriger-

ant and the closed room full with gas is dangerous because a shortage of oxygen

occurs. Be sure to execute ventilation.

When removing the front panel or cabinet, execute short-circuit and discharge

between high voltage capacitor terminals. If discharge is not executed, an electric

shock is caused by high voltage resulted in a death or injury.

Do not turn the air-conditioner ON or OFF by plugging or unplugging the power

plug. There is risk of fire or electrical shock.

Part 1 General Information

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Only for training and service purposes LGE Internal Use Only

Do not turn on the breaker under condition that front panel and cabinet are

removed.

Be sure to earth the air conditioner with an earthing conductor connected to the

earthing terminal.

Conduct repair works after checking that the refrigerating cycle section has

cooled down sufficiently. Otherwise, working on the unit, the hot refrigerating

cycle section can cause burns.

Do not tilt the unit when removing panels. Otherwise, the water inside the unit

can spill and wet floor.

Do not use the welder in a well-ventilated place. Using the welder in an enclosed

room can cause oxygen deficiency.

Be sure to turn off power switch before connect or disconnect connector, or parts

damage may be occurred.

Do not use a defective or underrated circuit breaker. Use the correctly rated

breaker and fuse. Otherwise there is a risk of fire or electric shock.

Install the panel and the cover of control box securely. Otherwise there is risk of

fire or electric shock due to dust, water etc.

Indoor/outdoor wiring connections must be secured tightly and the cable should

be routed properly so that there is no force pulling the cable from the connection

terminals. Improper or loose connections can cause heat generation or fire.

Do not touch, operate, or repaire the product with wet hands. Hoding the plug by

hand when taking out. Otherwise there is risk of electric shock or fire.

Part 1 General Information

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Only for training and service purposes LGE Internal Use Only

Check to see if the parts are mounted correctly and wires are connected.

Improper installation and connections can cause an electric shock or an injury.

Check the installation platform or frame has corroded. Corroded installation plat-

form or frame can cause the unit to fall, resulting in injury.

Be sure to check the earth wire is correctly connected.

After the work has finished, be sure to do an insulation tset to check the resis-

tance is 2[Mohm] or more between the charge section and the non-charge metal

section (Earth position). If the resistance value is low, a disaster such as a leak or

electric shock is caused at user’s side.

Check the drainage of the indoor unit after the repair. If drainage is faulty the

water to enter the room and wet floor.

1.2 Inspections after Repair

Check to see if the power cable plug is not dirty or loose. If the plug is dust or

loose it can cause an electrical shock or fire.

Do not use a joined power cable or extension cable, or share the same power

outlet with other electrical appliances. otherwise, it can cause an electrical shock,

excessive heat generation or fire.

Do not insert hands or other objects through the air inlet or outlet while the prod-

uct is operating. There are sharp and moving parts that could cause personal

injury.

Do not block the inlet or outlet of air flow. It may cause product failure

Part 1 General Information

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Only for training and service purposes LGE Internal Use Only

2. Nomenclature

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

8 Look A~Z Look,

Color (Artcool Model)

9 Function A~Z

10 Serial No. 0~9 LG Model De

* ARTCOOL COLOR (SF)

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

1 Kiss

E Red

V Silver

G Gold

Ex.F

→

SF Chassis

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Only for training and service purposes LGE Internal Use Only

Part 2 Functions & Controls

1. List of Controls & Functions ..........................................................................................8

2. Basic Mode Controls......................................................................................................10

3. Special Mode Controls...................................................................................................12

4. Utility Functions .............................................................................................................13

5. Protection Functions & Controls .................................................................................18

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Only for training and service purposes LGE Internal Use Only

Part 2 Functions & Controls

1. List of Functions & Controls

Cooling Mode

Heating Mode

Healthy Dehumidification

Automatic Mode Optional

Auto Changeover Optional

Jet Cool

Jet Heat

Energy saving Optional

Forced operation

Auto Clean

Plasma Optional

Electric Heater Optional

Air volume control

Auto Swing

Horizontal Airflow Optional

Natural Air control

Sleep mode Auto control

Auto Restart Function

Temperature Display Optional

Indication Lamps Optional

Preheat Optional

Heating Logic Selection Optional

Category Function Description Remark

Cooling operation

Heating operation

Dry operation

Air volume & set temp. are automatically selected for

comfort on Cooling/Heating mode

Cooling mode is automatically changed to heating

mode and vice verse

Powerful cooling mode

Powerful heating mode

Air volume & set temp. are automatically selected for

saving energy in cooling mode

Operation without remote controller

After cooling operation, this function makes the evapo-

rator dry

Air filtration using plasma filter

Electric heater

Indoor Fan speed Control

Vertical Airflow Direction control

Horizontal Airflow Direction control

Air volume control Program

Air volume & set temp. are automatically changed for

comfortable sleep

When power returns after a power failure, Unit restarts

in the previous operating mode

88 segment LED display

LED display

Preheating the compressor in winter

Thermo ON/OFF Temp., Blow out logic

Basic mode

controls

Special Mode

controls

Utility Functions

Notes: The Exploded View part has the particular Function table for each model.

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Only for training and service purposes LGE Internal Use Only

Five Second Delay (Fan)

Two Minutes Stand-by

(Comp.)

Hot Start

Freeze prevention

Automatic Defrost

Power Relay Control

Inverter (with inverter

power control)

Active Power filter Control

Comp. Freq. Control

Overheating Protection

(Power Module)

Freq. Speed Control

(Up/Down)

Total Current Control

(Over Current Protection)

DC Peak Control

4Way Valve Control

Out Door Fan Motor

Control

Discharge Pipe Temp

Control

Low Ambient Function

Comp. Torque Control Optional

Category Function Description Remark

For noise prevention

For overload prevention

To prevent cold wind blow on heating mode start

Evaporator frost prevention

Condenser frost prevention

Over current prevention

Modulation of voltage & frequency

Power factor correction

To prevent overloading

To protect power module

For cycle stabilization

To protect power device

To protect power module

For Heating mode

For controlling the capacity

For overheating protection

For operation at low temp.

For vibration prevention

Protection

Controls &

Functions

Notes: The Exploded View part has the particular Function table for each model.

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