Lg Asnc091f2g0, Asnc121f2g0, Asnh091f2g1, Asnh121f2g1, Asnh121f2g0 Owner's Manual

Universal Air Conditioner

SVC MANUAL(Exploded View)

MODEL : LAN126HNP(ASNH121F2G1) LAU126HNP(ASUH121FUG1)

LAN096HNP(ASNH091F2G1) LAU096HNP(ASUH091FUG1) LAN091CNP (ASNC091F2G0) LAU091CNP (ASUC091FUG0) LAN121CNP (ASNC121F2G0) LAU121CNP (ASUC121FUG0) LAN091HNP (ASNH091F2G0) LAU091HNP (ASUH091FUG0) LAN121HNP (ASNH121F2G0) LAU121HNP (ASUH121FUG0) LA090CPI (ASNC091F2G0) LA090CPO (ASUC091FUG0) LA120CPI (ASNC091F2G0) LA120CPO (ASUC091FUG0) LA090HPI (ASNH091F2G0) LA090HPO (ASUH091FUG0) LA120HPI (ASNH121F2G0) LA120HPO (ASUH121FUG0)

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

- 2 -

LGE Internal Use Only

Air Conditioner Service Manual

TABLE OF CONTENTS

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

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

Symbols Used in this Manual .....................................................................................................................................9

Indoor Unit ..................................................................................................................................................................9

Outdoor Unit .............................................................................................................................................................10

Product Specifications ..................................................................................................................................................11

Installation ......................................................................................................................................................................13

Installation Parts .......................................................................................................................................................13

Installation Tools.......................................................................................................................................................13

Installtion Map...........................................................................................................................................................14

Confirm the Refrigerant ............................................................................................................................................15

Select the best Locations..........................................................................................................................................16

Piping Length and Elevation .....................................................................................................................................17

Preparing Work for Installation .................................................................................................................................18

Fixing Indoor Unit......................................................................................................................................................19

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

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

Connection of piping-Indoor......................................................................................................................................21

Connection of the drain hose....................................................................................................................................22

Connection of piping-Outdoor...................................................................................................................................24

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

Connect the cable to the Indoor unit.........................................................................................................................25

Connection method of the connecting cable(Example) ............................................................................................26

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

Checking the drainage..............................................................................................................................................28

Forming the piping ....................................................................................................................................................29

AIR PURGING .................................................................................................................................................................30

Air purging ................................................................................................................................................................30

Charging ...................................................................................................................................................................32

Panel front assembly ................................................................................................................................................33

Test running..............................................................................................................................................................34

How to replace picture & photograph ..........................................................................................................................36

Operation ........................................................................................................................................................................37

Functions ..................................................................................................................................................................37

The function of main control .....................................................................................................................................38

Display Function ......................................................................................................................................................44

Self-diagnosis Function ............................................................................................................................................44

Remote Control Operations ......................................................................................................................................45

Disassembly ...................................................................................................................................................................46

Indoor Unit ................................................................................................................................................................46

Schematic Diagram ........................................................................................................................................................48

Heat Pump/Cooling Only Series(Indoor Unit) ...........................................................................................................48

Heat Pump Series (Outdoor Unit).............................................................................................................................49

INDOOR UNIT P.W.B. ASSEMBLY .........................................................................................................................50

OUTDOOR UNIT P.W.B. ASSEMBLY .....................................................................................................................51

DISPLAY P.W.B. ASM..............................................................................................................................................52

Wiring Diagram .........................................................................................................................................................53

Troubleshooting Guide..................................................................................................................................................55

Refrigeration Cycle Diagram.....................................................................................................................................55

Pipe length and the elevation ...................................................................................................................................56

3-way Valve ..............................................................................................................................................................57

Cycle Parts ...............................................................................................................................................................63

Electronic Parts.........................................................................................................................................................64

Exploded View ................................................................................................................................................................73

- 3 -

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.

■ Installation

Do not use damaged power cords, plugs, or a loose socket.

• There is risk of fire or electric

shock.

For electrical work, contact the dealer, seller, a qualified electrician, or an Authorized Service Center.

• There is risk of fire or electric shock.

Always use the power plug and socket with the ground terminal.

• There is risk of electric shock.

Install the panel and the cover of control box securely.

• There is risk of fire or electric shock.

Do not modify or extend the power cord.

• There is risk of fire or electric shock.

Do not install, remove, or reinstall the unit by yourself (customer).

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

- 4 -

LGE Internal Use Only

Safety Precautions

■ Operation

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 contact 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 damage to the product.

Be sure the installation area does not deteriorate with age.

• If the base collapses, the air conditioner could fall with it, causing property damage, product failure, and personal injury.

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 furnishings.

Take care to ensure that power cords could not be pulled out or damaged during operation.

• There is risk of fire or electrical shock.

Do not place anything on the power cord.

• There is risk of fire or electric shock.

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

• There is risk of fire or electrical shock.

- 5 -

LGE Internal Use Only

Safety Precautions

Use a dedicated outlet for this appliance.

• 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.

• 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, failure of the product, or electric shock.

Do not store or use flammable gas or combustibles near the air conditioner.

• There is risk of fire or failure of product.

Do not use the product in a tightly closed space for a long time.

• Oxygen deficiency could occur.

When flammable gas leaks, turn off the gas and open a window for ventilation before turn the product on. DO NOT use the telephone or turn switches on or off.

• There is risk of explosion or fire.

Unplug the unit if strange sounds, odors, or smoke comes from it.

• There is risk of electrical shock or fire

Stop operation and close the window in storm or hurricane. If possible, remove the air conditioner from the window before the hurricane arrives.

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

Thinner

Wax

- 6 -

LGE Internal Use Only

Safety Precautions

■ Installation

Do not open the inlet grill of the product during operation. (Do not touch the electrostatic filter, if the unit is so equipped.)

• There is risk of physical injury, electric shock, or product failure.

When the product is soaked (flooded or submerged), contact an Authorized Service Center.

• There is risk of fire or eletric shock.

Ventilate the product from time to time when operating it together with a stove, etc.

• There is risk of fire or electrical shock.

Unplug the appliance before performing cleaning or maintenance.

• There is risk of electrical shock.

When the product is not be used for a long time, disconnect the power supply plug or turn off the breaker.

• There is risk of product damage or failure, or unintended operation.

Take care to ensure that nobody could step on or fall onto the outdoor unit.

• This could result in personal injury and product damage.

Always check for gas (refrigerant) leakage after installation or repair of product.

• Low refrigerant levels may cause failure 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˚

- 7 -

LGE Internal Use Only

Safety Precautions

■ Operation

Do not install the product where the noise or hot air from the outdoor unit could damage the neighborhoods.

• It may cause a problem for your neighbors.

Use two or more people to lift and transport the air conditioner.

• Avoid personal injury.

Do not install the product where it will be exposed to sea wind (salt spray) directly.

• It may cause corrosion on the product. Corrosion, particularly on the condenser and evaporator fins, could cause product malfunction or inefficient operation.

Do not direct airflow at room occupants. (Don't sit in the draft.)

• This could damage your health.

Do not use the product for special purposes, such as preserving foods, works of art, etc. It is a consumer air conditioner, not a precision refrigeration system.

• There is risk of damage or loss of property.

Do not block the inlet or outlet of air flow.

• It may cause product failure.

Use a soft cloth to clean. Do not use harsh detergents, solvents, etc.

• There is risk of fire, electric shock, or damage to the plastic parts of the product.

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.

- 8 -

LGE Internal Use Only

Always insert the filter securely. Clean the filter every two weeks or more often if necessary.

• A dirty filter reduces the efficiency of the air conditioner and could cause product malfunction or damage.

Do not insert hands or other objects through the air inlet or outlet while the air conditioner is plugged in.

• There are sharp and moving parts that could cause personal injury.

Do not drink the water drained from the unit.

• It is not sanitary and could cause serious health issues.

Use a firm stool or ladder when cleaning or maintaining the air conditioner.

• Be careful and avoid personal injury.

Replace the all batteries in the remote control with new ones of the same type. Do not mix old and new batteries or different types of batteries.

• There is risk of fire or explosion

Do not recharge or disassemble the batteries. Do not dispose of batteries in a fire.

• They may burn or explode.

If the liquid from the batteries gets onto your skin or clothes, wash it well with clean water. Do not use the remote if the batteries have leaked.

• The chemicals in batteries could cause burns or other health hazards.

■ Disuse

Safety Precautions

- 9 -

LGE Internal Use Only

Dimensions

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.

Symbols Used in this Manual

Pipe Hole

Fix Hole

Hanger Hole

H

W

D

W mm(inch) 600(23.6)

H mm(inch) 600(23.6)

D mm(inch) 146(5.7)

Model

Dimension

INDOOR UNIT

NOTICE

- 10 -

LGE Internal Use Only

Dimensions

Outdoor Unit

W

L2

L3

L1

D

H

L4

L5

Gas side

(3-way valve)

Liquid side

(2-way valve)

MODEL

9k, 12k Models

DIM unit

W mm 770(30.3)

H mm 540(21.3)

D mm 245(9.6)

L1 mm 285(11.2)

L2 mm 64(2.5)

L3 mm 518(20.4)

L4 mm 10(0.4)

L5 mm 100(3.9)

- 11 -

LGE Internal Use Only

Product Specifications

Models

Cooling Capacity kW (Min~Rating~Max) Btu/h Heating Capacity kW (Min~Rating~Max) Btu/h Power Input Cooling/Heating W Running Current Cooling/Heating A Starting Current Cooling/Heating A

EER

W/W

Btu/h.W COP W/W Power Supply Ø / V / Hz Power Factor %

Air Flow Rate

Indoor,Max

m3/min(cfm)

Outdoor,Max

m3/min(cfm)

Moisture Removal l/h Sound Level

Indoor,H/M/L dB(A)+3 Outdoor,Max dB(A)+3

Refrigerant & Charge(at 7.5m) g(oz)

Compressor

Type Model Motor Type Oil Type Oil Charge cc O.L.P Name

Fan(Indoor)

Type Motor Output W

Fan(outdoor)

Type Motor Type

Motor Output W Circuit Breaker* A Power Supply Cable No.*mm

2

Power and Transmission Cable

No.*mm2+No.mm

2

Piping Liquid Side mm(in) Connections Gas Side mm(in) Drain Hose O.D , I.D mm(in)

Indoor(W*H*D)

mm

Dimension

inch

Outdoor(W*H*D)

mm inch

Indoor kg(lbs) Net Weight

Outdoor kg(lbs) Tool Code(Chassis) Indoor + Outdoor

Temperature Control Functions Plasma Filter

Prefilter(washable/anti-fungus)

Auto Clean

CHAOS Wind(Auto Wind)

Steps, Fan/Cool/Heat

Airflow Direction Control(up&down)

Airflow Direction Control(left&right)

Remocon Type

Setting Temperature Cooling

Range Heating

Auto Operation (Micom Control)

Auto Changeover (Micom Control)

Self Diagnosis

Timer

Sleep Operation

Soft Dry Operation

Restart Delay(minute)

Deice Control(Defrost)

Hot Start

Jet Cool

Low Ambient Operation

Special Function

Network Functions

Dry Contact

Network Solution(LGAP)

PI485

2.87 3.37 2.87 3.37

9,800 11,500 9,800 11,500

- - 2.87 3.37

- - 9,800 11,500

980 1,100 980/980 1,100/1,100

9.4 10 9.4/9.4 10/10

57.0 57.0 57.0/57.0 57.0/57.0

2.93 3.06 2.93 3.06

10.0 10.5 10.0 10.5

- - 2.93 3.06

1/115/60 1/115/60 1/115/60 1/115/60

90.7 95.7 90.7 95.7

9.3(330) 9.3(330) 9.3(330) 9.3(330) 25(883) 25(883) 25(883) 25(883)

1.4 1.4 1.4 1.4

41/35/29 41/35/29 41/35/29 41/35/29

48 48 48 48

R410A, 900(31.8) R410A, 900(31.8) R410A, 900(31.8) R410A, 900(31.8)

Rotary Rotary Rotary Rotary

GK113CAA GK113CAA GK113CAA GK113CAA

PSC PSC PSC PSC

FVC68D(PVE) FVC68D(PVE) FVC68D(PVE) FVC68D(PVE)

330 330 330 330

MRA12053-12027 MRA12053-12027 MRA12053-12027 MRA12053-12027

Turbo Fan Turbo Fan Turbo Fan Turbo Fan

24 24 24 24

Propeller Propeller Propeller Propeller

AC Induction AC Induction AC Induction AC Induction

27 27 27 27 20 20 20 20

3*2.5 3*2.5 3*2.5 3*2.5

4*0.75 4*0.75 4*0.75 4*0.75

6.35(1/4) 6.35(1/4) 6.35(1/4) 6.35(1/4)

12.7(1/2) 12.7(1/2) 12.7(1/2) 12.7(1/2)

21.5,16(0.85,0.63) 21.5,16(0.85,0.63) 21.5,16(0.85,0.63) 21.5,16(0.85,0.63) 600*600*146 600*600*146 600*600*146 600*600*146

23.62*23.62*5.75 23.62*23.62*5.75 23.62*23.62*5.75 23.62*23.62*5.75 770*540*245 770*540*245 770*540*245 770*540*245

30.31*21.26*9.65 30.31*21.26*9.65 30.31*21.26*9.65 30.31*21.26*9.65

15(33.1) 15(33.1) 15(33.1) 15(33.1) 32(70.5) 32(70.5) 32(70.5) 32(70.5) SF + UL SF + UL SF + UL SF + UL

Thermistor Thermistor Thermistor Thermistor

OOOO OOOO OOOO OOOO

3/4 3/4 3/4/3 3/4/3 Auto Auto Auto Auto Auto Auto Auto Auto

Wireless LCD Wireless LCD Wireless LCD Wireless LCD

18 ~ 30 18 ~ 30 18 ~ 30 18 ~ 30

- - 16 ~ 30 16 ~ 30 OOOO OOOO OOOO

24h, On/Off 24h, On/Off 24h, On/Off 24h, On/Off

OOOO OOOO

3333

--

OO

--

OO

OOOO

----

Note: O : Applied, - : No relation * For circuit breaker rating, please conform to local standards wherever necessary.

※ Some of functions are slightly different depending upon models. ※

The specification may be subject to change without notic for purpose of improvement.

AS-C091F2G0(LA091CNP)

AS-C091F2G0(LA090CP)

AS-C121F2G0(LA121CNP)

AS-C121F2G0(LA120CP)

AS-H091F2G0(LA091HNP)

AS-H091F2G0(LA090HP)

AS-H121F2G0(LA121HNP)

AS-H121F2G0(LA120HP)

Product Specifications

- 12 -

LGE Internal Use Only

Models

Cooling Capacity kW (Min~Rating~Max) Btu/h Heating Capacity kW (Min~Rating~Max) Btu/h Power Input Cooling/Heating W Running Current Cooling/Heating A Starting Current Cooling/Heating A

EER

W/W

Btu/h.W COP W/W Power Supply Ø / V / Hz Power Factor %

Air Flow Rate

Indoor,Max

m3/min(cfm)

Outdoor,Max

m3/min(cfm)

Moisture Removal l/h Sound Level

Indoor,H/M/L dB(A)+3 Outdoor,Max dB(A)+3

Refrigerant & Charge(at 7.5m) g(oz)

Compressor

Type Model Motor Type Oil Type Oil Charge cc O.L.P Name

Fan(Indoor)

Type Motor Output W

Fan(outdoor)

Type Motor Type

Motor Output W Circuit Breaker* A Power Supply Cable No.*mm

2

Power and Transmission Cable

No.*mm2+No.mm

2

Piping Liquid Side mm(in) Connections Gas Side mm(in) Drain Hose O.D , I.D mm(in)

Indoor(W*H*D)

mm

Dimension

inch

Outdoor(W*H*D)

mm inch

Indoor kg(lbs) Net Weight

Outdoor kg(lbs) Tool Code(Chassis) Indoor + Outdoor

Temperature Control Functions Plasma Filter

Prefilter(washable/anti-fungus)

Auto Clean

CHAOS Wind(Auto Wind)

Steps, Fan/Cool/Heat

Airflow Direction Control(up&down)

Airflow Direction Control(left&right)

Remocon Type

Setting Temperature Cooling

Range Heating

Auto Operation (Micom Control)

Auto Changeover (Micom Control)

Self Diagnosis

Timer

Sleep Operation

Soft Dry Operation

Restart Delay(minute)

Deice Control(Defrost)

Hot Start

Jet Cool

Low Ambient Operation

Special Function

Network Functions

Dry Contact

Network Solution(LGAP)

PI485

2.9 3.37

9,900 11,500

2.9 3.22

9,900 11,000

1,100/1,070 1,150/1,100

9.4/9.4 10-10

57.0/57.0 57.0/57.0

2.63 2.93 910

2.71 2.93

1/115/60 1/115/60

90.7 95.7

9.3(330) 9.3(330) 25(883) 25(883)

1.4 1.4

43/35/29 43/35/29

48 48

R410A, 900(31.8) R410A, 900(31.8)

Rotary Rotary

GK113CAA GK113CAA

PSC PSC

FVC68D(PVE) FVC68D(PVE)

330 330

MRA12053-12027 MRA12053-12027

Turbo Fan Turbo Fan

24 24

Propeller Propeller

AC Induction AC Induction

27 27 20 20

3*2.5 3*2.5

4*0.75 4*0.75

6.35(1/4) 6.35(1/4)

12.7(1/2) 12.7(1/2)

21.5,16(0.85,0.63) 21.5,16(0.85,0.63) 600*600*146 600*600*146

23.62*23.62*5.75 23.62*23.62*5.75 770*540*245 770*540*245

30.31*21.26*9.65 30.31*21.26*9.65

15(33.1) 15(33.1) 32(70.5) 32(70.5) SF + UL SF + UL

Thermistor Thermistor

OO OO OO OO

2003-04-03 2003-04-03

Auto Auto Auto Auto

Wireless LCD Wireless LCD

18 ~ 30 18 ~ 30 16 ~ 30 16 ~ 30

OO OO OO

24h, On/Off 24h, On/Off

OO OO

33 OO OO OO

--

Note: O : Applied, - : No relation * For circuit breaker rating, please conform to local standards wherever necessary.

※ Some of functions are slightly different depending upon models. ※

The specification may be subject to change without notic for purpose of improvement.

AS-H091F2G1

(LA096HNP)

AS-H121F2G1

(LA126HNP)

- 13 -

LGE Internal Use Only

Installation

Installation Parts

Installation Tools

Read carefully, and then follow step by step.

Type "A" screw and plastic anchor

Type "B" screw

Remote control holder

Installation guide map

Figure FigureName

Screw driver

Electric drill

Measuring tape, Knife

Hole core drill

Spanner

Torque wrench

Ohmmeter

Hexagonal wrench

Ammeter

Leak detector

Thermometer,

Horizontal meter

Flaring tool set

Name

- 14 -

LGE Internal Use Only

Installation Map

Installation parts you should purchase.

NOTICE

(Left and right

are identical)

More than 28"(70cm)

More than

23.6"(60cm)

Sleeve Bushing-Sleeve

Putty(Gum Type Sealer)

Vinyl tape (Wide)

• To carry out the drainage test, remove the air filter and pour water into the heat exchanger.

• Apply after carrying out a drainage test.

Saddle

More than

19.6"(50cm)

Gas side piping (Optional part) Liquid side piping (Optional part) Additional drain pipe

Vinyl tape (Narrow)

Connecting cable (Optional part)

Bend the pipe as close as possible on the wall but be careful so that it may not break.

More than More than

11.8"(30cm )11.8"(30cm )

More than

11.8"(30cm )

More than More than

11.8"(30cm) 11.8"(30cm)

More than

11.8"(30cm)

More than More than

3.9"(10cm) 3.9"(10cm)

More than

7.9"(20cm)

Installation

- 15 -

LGE Internal Use Only

1. Check the quality label on the indoor and outdoor unit.

2. Make certain that the refrigerant is R-410A.

THIS PRODUCT CONTAINS R-410A REFRIGERANT

1) Different compressor oil

- R-410A(Polyol ester) / R-22(Mineral).

- Do not mix the existing mineral oil.

- Do not apply used pipe, tools and gauges covered with the existing mineral oil.

2) Absorption of moisture

-Compressorʼs oil has the high absorption rate of moisture.

3) Composition

- R-410A(R32:R125=50:50wt%). NOTE: Never mix with other refrigerants

4) High pressure.

- 1.6 times higher than R-22.

- High Pressure refrigerant may cause personal injury.

Do not handle the pipe by yourself (customer) High-pressure refrigerant may cause personal injury.

- manifold gauge ,charging and any piping tools must be dedicated to R-410A systems.

Confirm The Refrigerant

Boiling Pt.(

°C) Vapor pressure(25°C)(kg f/cnf) Vapor density(25°C)(kg/m2)

R-410A -51.4 15.9 64 R-22 -40.8 9.6 44.4

Installation

NOTICE

Example : Split type 12,000 Btu/h

Capacity

[%]

120

100

80

100

93

89

84

76

60

40

20

0 R-410A R-22

100%

70% 50% 30%

0%

100%70%50%30%0%

- 16 -

LGE Internal Use Only

Indoor unit

1. Do not have any heat or steam near the unit.

2. Select a place where there are no obstacles in front of the unit.

3. Make sure that condensation drainage can be conveniently routed away.

4. Do not install near a doorway.

5. Ensure that the interval between a wall and the left (or right) of the unit is more than 19.6"(50cm). The unit should be installed as high as possible on the wall, allowing a minimum of 7.9"(20cm) from ceiling.

6. Use a stud finder to locate studs to prevent unnecessary damage to the wall.

Outdoor unit

1. If an awning is built over the unit to prevent direct sunlight or rain exposure, make sure that heat radiation from the condenser is not restricted.

2. Ensure that the space around the back and sides is more than 11.8"(30cm). The front of the unit should have more than 28"(70cm) of space.

3. Do not place animals and plants in the path of the warm air.

4. Take the weight of the air conditioner into account and select a place where noise and vibration are minimum.

5. Select a place where the warm air and noise from the air conditioner do not disturb neighbors.

Select the best Location

CAUTION: Install the indoor unit on the wall where the height from the floor is more than 4.9 feets(1.5 meters).

Rooftop Installations

If the outdoor unit is installed on a roof structure, be sure to level the unit. Ensure the roof structure and anchoring method are adequate for the unit location. Consult local codes regarding rooftop mounting.

If the outdoor unit is installed on roof structures or walls, this may result in excessive noise and vibration, and may be also classed as non serviceable installation.

Installation

More than

19.6"(50cm)

More than

4.9ft(1.5m)

More than

7.9"(20cm)

More than

19.6"(50cm)

More than

11.8"(30cm)

More than

23.6"(60cm) More than

11.8"(30cm)

More than

28"(70cm)

More than

23.6"(60cm)

- 17 -

LGE Internal Use Only

Piping Length and Elevation

Installation

Pipe Size

Capacity

(Btu/h)

Suction

Evap

Max.

length

Ⓐ

m(ft)

Additional

Refrigerant

g/m(oz/ft)

Max.

ElevationⒷ m(ft)

9k, 12k

Ø12.7mm(1/2") Ø6.35mm(1/4")

7.5(25) 7.5(25) 15(49) 20(0.22)

CAUTION: Capacity is based on standard length and maximum allowance length is

on the basis of reliability.

Oil trap should be installed every 16.4~23feets (5~7 meters).

Standard

Length m(ft)

Indoor unit

A

B

Outdoor unit

Indoor unit

A

B

Oil trap

Indoor unit

If piping length is more than 16.4ft(5m)

Outdoor unit

A

B

- 18 -

LGE Internal Use Only

Installation

Preparing Work for Installation

Open panel front

1. Pull the upper part of the front panel.

2. Lift up the panel.

3. To detach the front panel, remove the two screws at the lower part.

4. Detach the front panel from the body.

5. To detach the panel, disconnect the connector at the upper part.

Cover pipe and cover side remove

1. Please remove the screw of the center tuning cover.

2. Pull up the side cover of desired connecting direction, then cover side is separated.

3. Pick the pipe hole of the side cover.

CAUTION: After removing the pipe hole, cut the burr for safety.

When making pipe path through rear wall, you donʼt need to pick the pipe hole.

Drain hose junction

1. Remove the rubber stopple in the desired drain direction.

2. Insert drain hose into the handle of drain pan, and join drain hose and connecting hose according to the figure by.

Panel Front

Connector

Side cover

Pipe hole

Only the

desired direction

rubber cap

Only the

desired direction

Connecting

part

Adhesive

Drain hose

NOTICE

- 19 -

LGE Internal Use Only

Installation

Fixing Indoor Unit

• Drill the piping hole with a ø50mm hole core drill. Drill the piping hole at either the right or the left with the hole slightly slanted to the outdoor side.

Drill a Hole in the Wall

5-7mm

(0.2~0.3")

Indoor

WALL

Outdoor

Plastic anchors

INSTALLATION GUIDE MAP

10mm

INSTALLATION GU

I

N

S

T

A

I

A

T

I

ON GUI

DE

M

A

P

Plastic anchors

INSTALLATION

GU

ID

E M

A

P

I

N

STA

LLATI

O

N

G

U

I

D

E MA

P

Hanger hole

(Rear side of

the product)

3. Make a hole with a diameter of 6mm and depth of 30-35mm by piercing a screw point.

5. Drive the fore plastic anchors into drilled points.

7. Hang the hole of product at the upper screws, and remove the map. (Falling attention)

9. Check the fixed product with light power.

1. Attach an Installation guide map on the desired surface.

2. Look at suited horizon by horizontal meter on the horizontal setting line, and fix lightly the map by adhesive tape.

4.

Drill the pierted part as a diameter of 50mm

for connecting piping. (In case of piercing rear surface)

6.

First, Drive the two points of the upper

parts by screws. (Leave 10mm for hanging the product)

8. Drive the lower parts after facing the hole of product with plastic anchors, and fix completely the upper screws.

10.

In case of nothing wrong, connect the pipe and the wire. (Refer to installation manual)

I

Horizontality

NSTAL

LA

TION G

UI

DE

M

AP

- 20 -

LGE Internal Use Only

Flaring work and connection of piping

Flaring Work

Main cause for gas leakage is due to defect in flaring work. Carry out correct flaring work in the following procedure.

Cutting the pipes and the cable.

1. Use the piping kit accessory or the pipes purchased locally.

2. Measure the distance between the indoor and the outdoor unit.

3. Cut the pipes a little longer than measured distance.

4. Cut the cable 4.9ft(1.5m) longer than the pipe length.

Removing burrs

1. Completely remove all burrs from the cut cross section of pipe/tube.

2. Put the end of the copper tube/pipe in a downward direction as you remove burrs in order to avoid dropping burrs into the tubing.

Putting nut on

• Remove flare nuts attached to indoor and outdoor unit,

then put them on pipe/tube having completed burr removal. (not possible to put them on after flaring work)

Flaring work

1. Firmly hold copper pipe in a die in the dimension shown in the table below.

2. Carry out flaring work with the flaring tool.

Copper

pipe

90°

Slanted Uneven Rough

Pipe

Reamer

Point down

Flare nut

Copper tube

mm inch mm Ø6.35 1/4 1.1~1.3 Ø9.52 3/8 1.5~1.7 Ø12.7 1/2 1.6~1.8

Ø15.88 5/8 1.6~1.8 Ø19.05 3/4 1.9~2.1

Outside diameter A

Bar

Copper pipe

Clamp handle

Red arrow mark

Cone

Yoke

Handle

Bar

"A"

- 21 -

LGE Internal Use Only

Flaring work and connection of piping

Check

1. Compare the flared work with the figure by.

2. If a flared section is defective, cut it off and do flaring work again.

Indoor

Preparing the indoor unit's piping and drain hose for installation through the wall.

CAUTION: If the drain hose is routed inside the room, insulate the hose with an insulation material* so that dripping from "sweating"(condensation) will not damage furniture or floors. *Foamed polyethylene or equivalent is recommended.

1. Route the indoor tubing and the drain hose in the direction of rear left or right

2. Tape the tubing, drain hose and the connecting cable. Be sure that the drain hose is located at the lowest side of the bundle. Locating at the upper side can cause drain pan to overflow inside the unit.

Inclined

Inside is shiny without scratches

Smooth all round

Even length

all round

Surface

damaged

Cracked Uneven

thickness

= Improper flaring =

Connecting the Piping

Drain hose

Connecting cable

Gas side piping

Liquid side piping

Drain hose

Loop

- 22 -

LGE Internal Use Only

Connecting the piping with the indoor unit and drain hose with drain pipe

1. Align the center of the pipings and sufficiently tighten

the flare nut by hand.

2. Tighten the flare nut with a wrench.

3. When extending the drain hose at the indoor unit,

install the drain pipe.

Wrap the insulation material around the connecting portion.

1. Overlap the connection pipe insulation material and

the indoor unit pipe insulation material. Bind them together with vinyl tape so that there may be no gap.

2. Wrap the area which accommodates the rear piping

housing section with vinyl tape.

3. Bundle the piping and drain hose together by

wrapping them with vinyl tape over the range within which they fit into the rear piping housing section.

Flaring work and connection of piping

mm inch kgf.cm Ø6.35 1/4 180~250 Ø9.52 3/8 340~420 Ø12.7 1/2 550~660

Outside diameter Torque

Wrap with vinyl tape

Drain hose

Pipe

Vinyl tape(wide)

Indoor unit tubing Flare nut Pipings

Torque wrench

Indoor unit tubing

Spanner (fixed)

Connection pipe

Flare nut

Vinyl tape(narrow)

Adhesive

Drain pipe

Indoor unit drain hose

Plastic bands

Insulation material

Vinyl tape(narrow)

Connection pipe

Connecting cable

Vinyl tape (wide)

Wrap with vinyl tape

Indoor unit pipe

Pipe

- 23 -

LGE Internal Use Only

Flaring work and connection of piping

CAUTION: Installation Information

For right piping. Follow the instruction below.

Good case

• Press on the upper side of clamp and unfold the tubing to downward slowly.

Bad case

• Following bending type from left to right may cause damage to the turbing.