LG M30AH INSTALLATION INSTRUCTIONS

ENGLISH

LG
Air Conditioner

INSTALLATION MANUAL

LG

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

IMPORTANT

• Please read this instruction sheet completely before
installing the product.

• When the power cord is damaged, replacement work shall
be performed by authorized personnel only.

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

2 Room Air Conditioner

Multi Air Conditioner Installation Manual

TABLE OF CONTENTS

The following should be
always observed for

safety................................4~5

Installation of Indoor,

Outdoor Unit..................6~10

Flaring work and piping

connection...................11~15

Connecting the Cable
between Indoor Unit and
Outdoor Unit

................16~17

Checking the Drainage and
Forming the Pipings...18~19

Vacuum........................20~21

Panel Front Assembly.......22

Test running.......................23

Installation

Requirements

Required Parts Required T ools

❏ Installation guide map
❏ Four Type “A”screws & plastic

anchors

❏ Connecting cable

❏ Level gauge
❏ Screw driver
❏ Electric drill
❏ Hole core drill (ø50mm)
❏ Horizontal meter

❏ Pipes: Gas side..........1/2", 3/8"

Liquid side................1/4"

(Refer to page 7)

❏ Insulation materials
❏ Additional drain pipe

(Inner Diameter..............20mm)

❏ Flaring Tools set
❏ Specified to 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

❏ Two type "B" screws ❏ Owner's manual

❏ Thermometer
❏ Holder Remote Control

Installation Parts Provided

Installation Manual 3

ENGLISH

Installation Parts Provided

Type "A" screws and plastic anchors

Type "B" screws

Holder Remote Control

Installation plate

Standard Type

5. Copper pipe (Liquid side)

6. Copper pipe (Gas side)

7. Connecting cable

more than

20cm

more than

70cm

more than

20cm

more than

20cm

more than

70cm

more than

30cm

more than

30cm

Air Outlet

Air Intake

(side, rear)

Connection pipe
Drain hose

Connecting wire

Control cover

more than

30cm

4 Room Air Conditioner

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 flammable gas could
leak.

• Otherwise, it may cause explosion or fire.

Do not install the product on a defective
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 a defective
installation stand.

• Otherwise, It may cause injury or accident

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 har m 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

Be sure not to do.

Be sure to follow the instruction.

Safety Precautions

Installation Manual 5

ENGLISH

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 damage 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.

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.

CAUTION

6 Room Air Conditioner

Installation of Indoor, Outdoor Unit

Installation of Indoor, Outdoor Unit

Read completely, then follow step by step.

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 the spaces indicated by arrows from
the wall, ceiling, fence or other obstacles.

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 spaces indicated by arrows
around front, back and side of the unit.

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

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

5. Select a place so that 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 5cm

More than

5cm

More than 2.3m

More than

5cm

More than 10cm

More than 5cm

More than 2.3m

More than 5cm

More than 10cm

More than 50cm

More than 2m

More than 50cm

CAUTION: Install the indoor unit
on the wall where the height from
the floors more than 2.3 meters.

more than

20cm

more than

70cm

more than

30cm

more than

70cm

more than

20cm

more than

30cm

Installation of Indoor, Outdoor Unit

Installation Manual 7

ENGLISH

Multi Piping Type (m)

Piping length and elevation

14k 15+15=30 15 7.5 7.5
18k 15+15=30 15 7.5 7.5
21k 15+15+15=45 15 7.5 7.5
30k 15+15+15+15=60 15 7.5 7.5

Outdoor Capacity

(Btu/h)

Total Length

(m)

Max Length(A/B)

(m)

Max Elevation (h1)

(m)

In - In Elevation (h2)

(m)

7~12k 3/8" 1/4" 7.5 30

18~24k 1/2" 1/4" 7.5 30

Indoor Capacity

(Btu/h)

Pipe Size

Gas Liquid

Standard Length Additional Refrigerant

(m) (g/m)

h2

h1

A

B

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.