LG MS18AH INSTALLATION INSTRUCTIONS

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INSTALLATION MANUAL

AIR CONDITIONER

• Please read this installation manual completely before installing the product.

• Installation work must be performed in accordance with the national wiring standards by authorized personnel only.

• Please retain this installation manual for future reference after reading it thoroughly.

P/NO : 3828A20403C

ENGLISH

ITALIANO ESPAÑOL FRANÇAIS DEUTSCH

2 Room Air Conditioner

Room Air Conditioner Installation Manual

TABLE OF CONTENTS

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

Introduction........................................5

Symbols used in this manual..........5

Features ...........................................5

Installation ..........................................6

Installation parts...............................6

Installation tools ...............................6

Installation map................................7

Selecting the best location .............8

Piping length and elevation.............9

Fixing installation plate..................10

Drilling a hole in the wall ...............10

Flaring work ...................................11

Connecting the piping ..................12

Connecting the cables ..................18

Checking the drainage..................20

Forming the piping.........................21

Air purging......................................22

Test running ...................................24

Combination indoor units................26

Max Combination Capacity.............27

❏ Four type "A" screws & plastic

anchors

❏ Connecting cable

❏ Installation guide map

❏ Pipes: Gas side

Liquid side

❏ Insulation materials

❏ Additional drain pipe

(Outer diameter ..............15.5mm)

❏ Two type "B" screws

❏ Level gauge

❏ Screw driver

❏ Electric drill

❏ Hole core drill(ø70mm)

❏ Horizontal meter

❏ Flaring tool set

❏ Specified torque wrenches

1.8kg.m, 4.2kg.m, 5.5kg.m,

6.6kg.m (different depending on model No.)

❏ Spanner ........................Half union

❏ A glass of water

❏ Screw driver

❏ Hexagonal wrench(4mm)

❏ Gas-leak detector

❏ Vacuum pump

❏ Gauge manifold

❏ Owner's manual

❏ Thermometer

❏ Remote control holder

Installation

Requirements

Required Parts Required Tools

Installation Manual 3

ENGLISH

Safety Precautions

To prevent the injury of the user or other people and property damage, the following instructions must be followed.

■ Be sure to read before installing the air conditioner.

■ Be sure to observe the cautions specified here as they include important items related to safety.

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

classified by the following indications.

■ The meanings of the 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.

Safety Precautions

Do not disassemble or repair the product.

• Contact your dealer or service center.

Always earth the product.

• It will cause fire or electric shock.

Do not handle the flamable gas or explosive materials near the product.

• Otherwise, it may cause fire or failure of product.

Do not install where flamable gas could leak.

• Otherwise, it may cause esplosion or fire.

Do not install the product on an defected installation stand.

• Otherwise, It may cause injury or accident.

Be cautious when unpack and install the product.

• Sharp edges could cause injury.

For electric work, contact the dealer or service center.

• Otherwise, It will cause fire or electric shock.

Do not use damaged power cable.

• It will cause fire or electric shock.

For installation, always contact the dealer or service center.

• Otherwise, it may cause fire, electric shock, explosion or injury."

Do not install the product on an defected installation stand.

• Otherwise, It may cause injury or accident

4 Room Air Conditioner

Safety Precautions

If strange sound, smell or smoke come from product, turn the breaker off or disconnect the power supply cable.

• Otherwise, it may cause electric shock or fire.

Do not put the heater, etc. near the power cable.

• Otherwise, it may cause fire and electric shock.

Cover the electric part.

• Otherwise, it may cause fire or electric shock.

Do not turn the breaker on/off or connect/disconnect the power supply plug during operation.

• Otherwise, it may cause fire or electric shock.

Do not open the suction inlet of the product during operation.

• Otherwise, it may cause electric shock or failure.

Do not touch the metal parts of the product when removing the air filter.

• Otherwise, it may cause personal injury.

Always inspect gas leakage after installation and repair of product.

• Otherwise, it may cause failure of product.

Install the drain hose to ensure that drain can be securely done.

• Otherwise, it may cause water leakage.

Keep the level even in installing the product.

• Otherwise, it may cause vibration or water leakage.

Do not install the product where the noise or hot wind from the outdoor unit could give any casualty to the neighborhood

• Otherwise, it may cause dispute with the neighborhoods.

Do not step or put anyting on the product.

• Otherwise, it may cause personal injury and failure of product.

Use a vacuum pump or Inert (nitrogen) gas when doing leakage test or air purge. Do not compress air or Oxygen and do not use Flammable gases. Otherwise, it may cause fire or explosion.

•

There is the risk of death, injury, fire or explosion.

Always intstall an circuit breaker and main breaker.

• No installation may cause fire and electric shock.

Do not touch(operate) product with wet hands.

• Otherwise, it may cause fire or electric shock.

Installation Manual 5

ENGLISH

Introduction

This symbol alerts you to the risk of electric shock.

This symbol alerts you to hazards that may cause harm to the air conditioner.

This symbol indicates special notes.

NOTICE

Introduction

Symbols used in this Manual

Features

Air Outlet

Air Intake

(side, rear)

Connection pipe Drain hose

Connecting wire

Control cover

Air Intake Vents

Air Outlet Vents

Base Plate

Connection pipe Drain hose

Connecting wire

Control cover

Air Inlet

Air Filter

Front Panel

Signal Receptor

6 Room Air Conditioner

Installation

Type "A" screw (6 EA) Type "A" screw (8 EA)

Type "B" screw Type "B" screw

Remote control holderRemote control holder

Type 1 Type 2

Installation plate Installation plate

Figure FigureName

Screw driver

Electric drill

Measuring tape, Knife

Hole core drill

Spanner

Torque wrench

Ohmmeter

Hexagonal wrench

Ammeter

Gas-leak detector

Thermometer,

Horizontal meter

Flaring tool set

Name

Installation Parts

Installation Tools

Installation

Read carefully, and then follow step by step.

Installation Manual 7

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Installation

Installation Map

Installation parts you should purchase.

Vertical Air deflector

Air Discarge

Forced Operation Button

Operation Indication Lamps/

Signal Receptor

Vinyl tape (Wide)

• Apply after carrying out a drainage test.

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

Saddle

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

Vinyl tape (Narrow) Drain Hose

Base Plate

Connecting cable (Optional Parts)

Installation plate Sleeve Bushing-Sleeve

Putty(Gum Type Sealer)

Bend the pipe as closely on the wall as possible, but be careful that it doesn't break.

NOTICE

Air Outlet Vents

Air Inlet Vents

8 Room Air Conditioner

Installation

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 50cm. The unit should be installed as high as possible on the wall, allowing a minimum of 10cm 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 10cm. The front of the unit should have more than 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.

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.

Select the best Location

More than 10cm

More than

5cm

More than 2.3m

More than

5cm

Install the indoor unit on the wall where the height from the floor is more than 2 meters.

more than

70cm

more than

30cm

more than

30cm

more than

20cm

more than

20cm

more than

70cm

Installation Manual 9

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Installation

Branch Pipe

Main Pipe

Distributor

Multi Piping Type Distributor Type

Multi Piping Type (m)Indoor Pipe Size

Distributor Type (m)

Piping length and elevation

14k/16k 30 20 15 7.5

18k 40 25 15 7.5 24k 50 25 15 7.5 30k 70 25 15 7.5

Capacity

(Btu/h)

Total

Length

Max

Length(A/B)

Max Elevation

(h1)

In - In Elevation

(h2)

7k, 9k, 12k

3/8" 1/4"

18k, 24k 1/2" 1/4"

Capacity

(Btu/h)

Pipe Size

GAS LIQUID

40k 100 50 50 15 30 10 48k 110 50 60 15 30 10 56k 120 50 70 15 30 10

Capacity

(Btu/h)

Total Length

Max Main Pipe

Length (A/B)

Total Branch

Pipe Length

Max Branch Pipe Length

Max Elevation

(h1)

In - In Elevation

(h2)

CAUTION: Capacity is based on standard length and maximum allowance length is on the basis of reliability. Oil trap should be installed every 5~7 meters.

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