LG ARNU12GTRB4 INSTALLATION MANUAL

INSTALLATION MANUAL

AIR
CONDITIONER

ENGLISH

BAHASA INDONESIA

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.

Ceiling Cassette – 4Way

Original instruction

ARNU05GTRB4 ARNU07GTRB4 ARNU09GTRB4 ARNU12GTRB4
ARNU15GTQB4 ARNU18GTQB4 ARNU21GTQB4 ARNU24GTPA4
ARNU28GTPA4 ARNU30GTPA4 ARNU36GTNA4 ARNU42GTMA4
ARNU48GTMA4 ARNU54GTMA4

I.15.LEI24.03756.0817

www.lg.com

P/NO : MFL69440020

Copyright © 2018 LG Electronics Inc. All Rights Reserved.

Table of Contents

TABLE OF CONTENTS

3 INSTALLATION PARTS
4 SAFETY PRECAUTIONS
6 INSTALLATION

6 Selection of the best location

7 Ceiling dimension and hanging bolt location

8 Wiring Connection

10 Installation of Decoration Panel

11 Drain Piping

13 DIP Switch Setting

14 Group Control Setting

19 Model Designation

19 Airborne Noise Emission

19 Limiting concentration

2 Indoor Unit

Installation Parts

Name

Quantity

Shape

for gas pipe

for liquid pipe

Clamp metal

2 EA

Insulation for

fitting

1 SET

Drain hose

1 EA

Clamp

(Tie Wrap)

8 EA

Washer for

hanging backet

4 EA

(Other)

• Paper pattern for
installation

• Owner's manual

• Installation manual

Air Outlet

Installation Tool

Air

Intake

Wired Remote Controller(Optional)

Air Filter

Installation Parts

ENGLISH

• Screws for fixing panels are attached to decoration panel.

Installation Manual 3

Safety Precautions

Safety Precautions

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

n Be sure to read before installing the air conditioner.
n Be sure to observe the cautions specified here as they include important items related to safety.
n Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by the

following indications.

This symbol indicates the possibility of death or serious injury.

This symbol indicates the possibility of injury or damage to properties only.

n Meanings of symbols used in this manual are as shown below.

Be sure not to do.

Be sure to follow the instruction.

Installation

• Do not use a defective or underrated circuit breaker. Use this appliance on a dedicated
circuit.

- There is risk of fire or electric shock.

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

- Do not disassemble or repair the product. There is risk of fire or electric shock.

• 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 circuit and breaker.

- Improper wiring or installation may cause fire or electric shock.

• Use the correctly rated breaker or fuse.

- There is risk of fire or electric shock.

• Do not modify or extend the power cable.

- 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.

• 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.

4 Indoor Unit

Safety Precautions

• 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.

• 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.

• Do not turn on the breaker or power under condition that front panel, cabinet, top cover,
control box cover are removed or opened.

- Otherwise, it may cause fire, electric shock, explosion or death.

Operation

• Do not store or use flammable gas or combustibles near the product.

- There is risk of fire or failure of product.

Installation

• 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.

• In order to avoid a hazard due to inadvertent resetting of the thermal cut-out, this appliance
must not be supplied through an external switching device, such as a timer, or connected to
a circuit that is regularly switched on and off by the utility.

• If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or
similarly qualified persons in order to avoid a hazrd.

• This equipment shall be provided with a supply conductor complying with the national
regulation.

• Means for disconnection must be incorporated in the fixed wiring in accordance with the
wiring rules.

ENGLISH

Installation Manual 5

Unit:mm

Ceiling

Ceiling Board

Ceiling Board

300 or more

Above 2 500

4 000 or less

1 000

or more

500 or

more

500 or

more

300 or less

Floor

Installation

Annexed sheet

Or

Packing corrugated

cardboard on the

bottom

Installation

Read completely, then follow step by step.

Selection of the best location

• If the temperature might rise above 30 ℃ or the humidity might rise above RH 80%, attach the Dew­Protective kit or use another insulation to the indoor body.
h Dew Protective kit is sold separately.

Use glass wool material or polyethylene foam and make sure at least 10mm thick.

• There should not be any heat source or steam near the unit.

• There should not be any obstacles to the air circulation.

• A place where air circulation in the room will be good.

• A place where drainage can be easily obtained.

• A place where noise prevention is taken into consideration.

• Do not install the unit near the door way.

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

• The indoor unit must have the maintenance space.

h Please use an annexed sheet or the corrugated

6 Indoor Unit

CAUTION : In case that the unit is installed near the sea, the installation parts
may be corroded by salt. The installation parts (and the unit) should be taken
appropriate anti-corrosion measures.

h When using the bottom sheet, please use it
cardboard on the bottom of packing as
installation sheet.

after separating the installation sheet from
packing of the product floor by using a knife etc
as a picture below.