LG TMNC092DYAA Manuale utente

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: Indoor Unit: Wall Mounted Type

TMNC092DYAA

TMNC122DYAA

TMNC182D5AA

TMNC242D5AA

TMNC092TYAA

TMNC122TYAA

TMNC182T5AA

TMNC242T5AA

TMNH092DYAA

TMNH122DYAA

TMNH182D5AA

TMNH242D5AA

TMNH092TYAA

TMNH122TYAA

TMNH182T5AA

TMNH242T5AA

Outdoor Unit: T2UC182FAA

T2UC242FAA

T2UC362FAA

T2UC482FAA

T2UH242FAA

T2UH362FAA

T2UH482FAA

T2UH182FAA

2 Multi Air Conditioner

Multi Air Conditioner Service Manual

TABLE OF CONTENTS

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

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

Dimensions ..................................................................................................................................................9

Refrigeration Cycle Diagram ....................................................................................................................12

Wiring Diagram ..........................................................................................................................................13

Electronic Control Device .........................................................................................................................14

Schematic Diagram ...................................................................................................................................17

Functions ...................................................................................................................................................19

Operation Details ......................................................................................................................................22

Disassembly ..............................................................................................................................................26

2-way, 3-way Valve ....................................................................................................................................29

Cycle Troubleshooting Guide ..................................................................................................................33

Installation .................................................................................................................................................39

Flaring work and connection of piping ...................................................................................................42

Connecting the Cable Between Indoor Unit and Outdoor Unit .............................................................47

Exploded View and Replacement Parts List ...........................................................................................49

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.

4 Multi 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

6 Multi 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.

90Û

Service Manual 7

Product Specifications

Indoor Unit

Power Supply Ø,V,Hz

rh/utByticapaCgnilooC

yticapaCHeating

kcal/hr

rh/utB

kcal/hr

Current Normal running current A

Fan Model

Fan Type

Motor Output W

Air Flow Rate CMM(CFM)

Capacitor µF/Vac

Coil Tube Size (OD) mm(inch)

Fins per inch

No. of Rows & Column/No.

3±)A(Bd)L/M/H(leveLdnuoS

Referigerant

Referigerant Control

)hcni(mmdiuqiLnoitcennoCgnipiP

)hcni(mmsaG

)sbl(gkroodnIthgieWteN

)hcni(mmD*H*WsnoisnemiD

)hcni(mmD*H*WnoisnemiDgnikcaP

Model TMNH092DYAA TMNH122DYAA

detnuomllaWepyttinuroodnI

1Ø, 220V, 60Hz 1Ø, 220V, 60Hz

0.270.20

CFF

RP15C-1 WEILINGRP15C-1 WEILING

8.4/7.6/6.4(296.5/268.3/225.9)7/6/5(247.1/211.8/176.5)

0.9/400

20FPI S-FIN

2R 15C

R-22R-22

6.35(1/4)

12.7(1/2)

7/9

840*270*161

6.35(1/4)

9.52(3/8)

7/9

840*270*161

892*322*198 892*322*198

CFF

0.9/400

20FPI S-FIN

2R 15C

34/31/29 40/37/34

Thermistor

12,000

3,517

3,024

9,000

2,638

2,268

12,000

3,517

3,024

9,000

2,638

2,268

8 Multi Air Conditioner

Product Specifications

Note :

1. Capacities are based on the following conditions:

Cooling: - Indoor Temperature 26.7°C(80°F) DB / 19.4°C(67°F) WB

- Outdoor Temperature 35°C(95°F) DB / 23.9°C(75°F) WB

Piping Length - Interconnecting Piping Length 7.5m

- Level Difference of Zero.

2. Due to our policy of innovation some specifications may be changed without notification.

3. At least two indoor units should be connected.

Outdoor Unit

Unit T2UH182FAA T2UH242FAA

W 3077/ 3077 3517 / 3517

Btu/hr 10500 / 10500 12000 / 12000

W 3077/ 3077 3517 / 3517

Btu/hr 10500 / 10500 12000 / 12000

W 5275 / 5275 7034

Btu/hr 18,000 / 18,000 24,000

Power input

(Cooling/heating) A+B W 1850/1650 2380/2420

Running current

(Cooling/heating)

A+B A 8.6/ 7.6 11/11.3

f,V,Hz 1,220,60 1,220,60

No. * mm23*2.5 3*2.5

No. * mm24*0.75 4*0.75

W/W 2.85 2.96

Btu/hr W 9.7 10.1

W/W 3.20 2.91

Btu/hr W 10.9 9.9

Capillary Capillary

g(oz), type 1050, R22 A: 650 /B: 650 R22

Dimensions (W*H*D) Outdoor unit mm 801*555*262 870*655*320

Packing dimensions (W*H*D) Outdoor unit mm 960*610*384 1002*700*422

kg (lbs) 50 (110) 63 (139)

Rotary Rotary

1 2

QJ278KDF QK185KBK

LG LG

SUNISO 4GSI SUNISO 4GSI

MOTOR TYPE PSC PSC

Oil charge cc 410 350

Tube size (OD) inch (mm) 0.276 (7.0) 0.276 (7.0)

18 18

2R 24C 2R 28C

Model YGK25-6A-9 KFD-60K11

No. of poles 6 6

CMM (CFM) 49 (1398) 40 (1142)

Propeller Propeller

No. used / dia.

EA / inch (mm)

1 / 18.1(460) 1 / 18.1(460)

Side discharge Side discharge

RPM ±30 1020 880

dB +3(dB+1) 54(56) 54(56)

Liquid A inch (mm) 1/4 (6.35) 1/4 (6.35)

Gas A inch (mm) 3/8 (9.52) 1/2 (12.7)

Liquid B inch (mm) 1/4 (6.35) 1/4 (6.35)

Gas B inch (mm) 3/8 (9.52) 1/2 (12.7)

Max piping length total m 30 30

Std. Piping length m 7.5 7.5

m 15 / 7.5 15 / 7.5

Stuff Quantity (Set) 20FT/40FT/40FT(H) 80/168/192 65/138/156

Power supply

Power supply cable

Connecting cable

Item

Capacity

(Cooling/heating)

A (SY 9K)

B (SY 9K )

A+B (9K+9K)

EER

cooling

COP

heating

Refrigerant control

Refrigerant charge

Net weight

Compressor

Type

Quantity

Model name

Maker

Oil type

Outdoor coil

FPI

No. of rows & columns

Noise level +3

SVC valves

Max. piping length per each room / elevation

Outdoor Motor

Air circulation

Outdoor fan

Type

Dischage

Service Manual 9

Dimensions

Installation plate

mmW

mmH

mmD

Model

Dimension

Indoor Unit

TMN 122DYAATMNH092DYAA

840

270

161

840

270

161

10 Multi Air Conditioner

Dimensions

Outdoor Unit

Model: T2UH182FAA

L4 L3

L10 L10L10

L7L5L6

801mmW

555mmH

262mmD

339mm1L

37mm2L

543.6mm3L

11.4mm4L

591mm5L

105mm6L

105mm7L

72.5mm8L

74.5mm9L

79mm01L

T2UH182FAA

MODEL

DIM

Gas side

3-way valve

Liquid side

2-way valve

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