LG L2-C362LL0 Bedienungsanleitung

Multi Type Air Conditioner

SERVICE MANUAL

CAUTION

website http://www.lgservice.com

e-mail http://www.lgeservice.com/techsup.html

• BEFORE SERVICING THE UNIT, READ THE SAFETY

PRECAUTIONS IN THIS MANUAL.

• ONLY FOR AUTHORIZED SERVICE PERSONNEL.

MODEL: L2-C362LL0

L3-C362LL0

L3-C482LL0

2Multi Air Conditioner

Multi Air Conditioner Service Manual

TABLE OF CONTENTS

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

Product Specifications...............................................................................................................................7

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

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

Wiring Diagram..........................................................................................................................................16

Electronic Control Device.........................................................................................................................17

Schematic Diagram...................................................................................................................................20

Functions...................................................................................................................................................24

Operation Details ......................................................................................................................................27

2-way, 3-way Valve ....................................................................................................................................34

Cycle Troubleshooting Guide ..................................................................................................................38

Electronic Parts Troubleshooting Guide ................................................................................................39

Installation.................................................................................................................................................46

Operation ..................................................................................................................................................59

Disassembly of the parts (Indoor unit) ...................................................................................................61

Exploded View and Replacement Parts List...........................................................................................63

Service Manual 3

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 symbol used in this manual are as shown below.

WARNING

CAUTION

This symbol indicates the possibility of death or serious injury.

This symbol indicates the possibility of injury or damage.

WARNING

■Installation

Be sure not to do.

Be sure to follow the instruction.

Do not use a defective or

underrated circuit breaker.

Use this appliance on a dedi-

cated circuit.

• There is risk of fire or electric shock.

Do not let the air conditioner

run for a long time when the

humidity is very high and a

door or a window is left open.

• Moisture may condense and wet or

damage furniture.

Always ground the product.

• There is risk of fire or electric shock.

Install the panel and the cover

of control box securely.

• There is risk of fire or electric shock.

Always install a dedicated cir-

cuit and breaker.

• Improper wiring or installation may

cause fire or electric shock

Use the correctly rated break-

er or fuse.

• There is risk of fire or electric shock.

4Multi Air Conditioner

Safety Precautions

■Operational

Do not modify or extend the

power cable.

• There is risk of fire or electric shock.

Do not install, remove, or re-

install the unit by yourself

(customer).

• There is risk of fire, electric shock,

explosion, or injury.

Be cautious when unpacking

and installing the product.

• Sharp edges could cause injury. Be

especially careful of the case edges

and the fins on the condenser and

evaporator.

For installation, always con-

tact the dealer or an

Authorized Service Center.

• There is risk of fire, electric shock,

explosion, or injury.

Do not install the product on a

defective installation stand.

• It may cause injury, accident, or dam-

age to the product.

Be sure the installation area

does not deteriorate with age.

• If the base collapses, the air condition-

er could fall with it, causing property

damage, product failure, and personal

injury.

Do not touch(operate) the

product with wet hands.

• There is risk of fire or electrical shock.

Do not place a heater or other

appliances near the power

cable.

• There is risk of fire and electric shock.

Do not allow water to run into

electric parts.

• It may cause There is risk of fire, fail-

ure of the product, or electric shock.

Service Manual 5

Safety Precautions

Do not open the inlet grille of the product dur-

ing operation. (Do not touch the electrostatic

filter, if the unit is so equipped.)

• There is risk of physical injury, electric shock, or product fail-

ure.

Be cautious that water could not enter the

product.

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

Do not store or use flammable gas or com-

bustibles near the product.

• There is risk of fire or failure of product.

If strange sounds, or smell or smoke comes

from product. Turn the breaker off or discon-

nect the power supply cable.

• There is risk of electric shock or fire.

Gasolin

6Multi Air Conditioner

■Operational

Safety Precautions

Use two or more people to lift

and transport the product.

• Avoid personal injury.

Use a soft cloth to clean. Do

not use harsh detergents, sol-

vents, etc.

• There is risk of fire, electric shock, or

damage to the plastic parts of the prod-

uct.

Do not touch the metal parts

of the product when removing

the air filter. They are very

sharp!

• There is risk of personal injury.

Do not step on or put anyting on the product.

(outdoor units)

• There is risk of personal injury and failure of product.

Do not insert hands or other objects through

the air inlet or outlet while the product is oper-

ated.

• There are sharp and moving parts that could cause personal

injury.

CAUTION

■Installation

Wax

Thinner

check for gas (refrigerant)

leakage after installation or

repair of product.

• Low refrigerant levels may cause fail-

ure of product.

Install the drain hose to

ensure that water is drained

away properly.

• A bad connection may cause water

leakage.

Keep level even when

installing the product.

• To avoid vibration or water leakage.

90˚

Service Manual 7

Product Specifications

1. L2-C362LL0

17,800(4,486) 35,600(8,972)

2.0 2.0 x 2

1Ø, 220, 60HZ

13.1

1,900 3,650

8.7 16.8

9.4 9.8

1,080 x314 x 181

870 x 800 x 320

A: 820, B: 820 (at 7.5m)

L.C.D Wireless

1/4"(6.35)

5/8"(15.88)

1.5mm2

3.5mm2

Operation A or B unit A + B unit

Unit

Indoor

Outdoor

Indoor

Outdoor

Indoor

Outdoor

Indoor

Outdoor

Indoor

Outdoor

Liquid

Gas

Item

Cooling Capacity Btu/h(kcal/h)

Moisture Removal /h

Power Source ø, V, Hz

Air Circulation m3/min

Noise Level(Low) dB(A)

Input W

Runnig Current A

E.E.R. Btu/h.w

Motor Output W

Dimensions(W x H x D)

Net. Weight kg

Refrigerant(R-22) g

Airflow Direction Control(Up & Down)

Remocon Type

Service Valve

Drain Hose

Plasma Filter

Connecting Cable

Power Cord

8Multi Air Conditioner

Product Specifications

2. L3-C362LL0

12,000(3,024)

13,000(3,276) 25,000(6,300) 23,800(5,998) 35,800(9,022)

1.4 1.5 2.9 2.5 3.9

1Ø, 220V, 60Hz

Indoor 9.0 9.5 9.0 + 9.5 9 + 9 9.0 x 3

Outdoor 58 - - - -

Indoor 37 38 - - -

Outdoor 57

1,300 2,100 3,200 2,400 3,600

5.7 9.3 13.6 10.1 14.8

9.2 6.2 7.8 9.9 9.9

Indoor 14.4 x 3

Outdoor 90

Indoor 888 x 287 x 170

Outdoor 870 x 800 x 320

Indoor 9 - - -

Outdoor 71

A: 550, B: 1,100 (at 7.5m)

L.C.D Wireless

Liquid 1/4"(6.35)

Gas 1/2"(12.7)

0.75mm2

3.5mm2

Operation A-Unit

B or C-Unit

A+B or C B+C A+B+C

Unit

Item

Cooling Capacity Btu/h(kcal/h)

Moisture Removal /h

Power Source ø, V, Hz

Air Circulation m3/min

Noise Level(Low) dB(A)

Input W

Runnig Current A

E.E.R. Btu/h.w

Motor Output W

Dimensions(W x H x D)

Net. Weight kg

Refrigerant(R-22) g

Airflow Direction Control(Up & Down)

Remocon Type

Service Valve

Drain Hose

Plasma Filter

Connecting Cable

Power Cord

Service Manual 9

Product Specifications

3. L3-C482LL0

24,000(6,048)

16,000(4,032)

40,000(10,080)

24,000(6,048)

48,000(12,096)

2.5 2.2 4.8 3.4 6.5

1Ø, 220V, 60Hz

Indoor 14.5 9.0 14.5 + 9.0 8.2 + 8.2

14.5 + 8.2 + 8.2

Outdoor 106

Indoor 47/44/40 42/40/38 - - -

Outdoor 60

2,500 2,300 4,500 2,500 4,700

11.0 10.5 20.0 11.0 21.0

9.6 7.0 8.9 9.6 10.6

Indoor 22 14.4

Outdoor 80 x 2

Indoor

1,180 x 314 x 181

888 x 287 x 170

Outdoor 1,225 x 900 370

Indoor 11 9 - - -

Outdoor 106

1,570 1,300 - - -

L.C.D Wireless

Liquid

3/8"(9.52) 1/4"(6.35)

---

Gas

5/8"(15.88) 1/2"(12.7)

---

0.75mm2

5.5mm2

Operation A-Unit

B or C-Unit

A+B or C B+C A+B+C

Unit

Item

Cooling Capacity Btu/h(kcal/h)

Moisture Removal /h

Power Source ø, V, Hz

Air Circulation m3/min

Noise Level(Low) dB(A)

Input W

Runnig Current A

E.E.R. Btu/h.w

Motor Output W

Dimensions(W x H x D)

Net. Weight kg

Refrigerant(R-22) g

Airflow Direction Control(Up & Down)

Remocon Type

Service Valve

Drain Hose

Plasma Filter

Connecting Cable

Power Cord

10 Multi Air Conditioner

Dimensions

1. Indoor Unit

Dimensions

Installation plate

Right rear piping

Left rear piping

ø70mm ø70mm

50mm

20mm

80mm

ø70mm

Center

ø70mm

Left rear piping Right rear piping

Tubing hole cover

W mm 802 888 1,080

H mm 262 287 314

D mm 165 170 181

4.5K, 6K, 7K, 8K, 9K

Btu Series 9K, 10K, 12K Btu

Series 18K, 24K Btu

MODEL

DIM

( 4.5K, 6K, 7K, 8K, 9K )

( 9K, 10K, 12K, 18K, 24K )

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