LG ARNU18GTTD4 INSTALLATION INSTRUCTIONS

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.

CEILING CASSETTE - 1 WAY

Original instruction

[Representative] LG Electronics Inc. EU Representative : LG Electronics European Shared Service Center B.V. Krijgsman 1, 1186 DM Amstelveen, The Netherlands [Manufacturer] LG Electronics Inc. Changwon 2nd factory 84, Wanam-ro, Seongsan-gu,

Changwon-si, Gyeongsangnam-do, KOREA

<![if ! IE]> <![endif]>ЯЗЫК РУССКИЙ	<![if ! IE]> <![endif]>ENGLISH
<![if ! IE]> <![endif]>УКРАÏНСЬКА	<![if ! IE]> <![endif]>ITALIANO
<![if ! IE]> <![endif]>ТІЛІ ҚАЗАҚ	<![if ! IE]> <![endif]>ESPAÑOL
<![if ! IE]> <![endif]>МОВА БЕЛАРУСКАЯ	<![if ! IE]> <![endif]>FRANÇAIS
<![if ! IE]> <![endif]>TILI OʻZBEK	<![if ! IE]> <![endif]>DEUTSCH
	<![if ! IE]> <![endif]>ΕΛΛΗΝΙΚΆ
	<![if ! IE]> <![endif]>ČEŠTINA
	<![if ! IE]> <![endif]>NEDERLANDS
	<![if ! IE]> <![endif]>POLSKI
	<![if ! IE]> <![endif]>ROMÂNĂ LIMBA

MFL68686521	www.lg.com
Rev.00_052219	Copyright © 2017 - 2019 LG Electronics Inc. All Rights Reserved.

Table of Contents

TABLE OF CONTENTS

3INSTALLATION PARTS

4SAFETY PRECAUTIONS

10 INSTALLATION

10 Selection of the Best Location

12Ceiling Dimension and Hanging Bolt Location

13Wiring Connection

14Installation of Decoration Panel (Panel Type)

15Installation of Decoration Panel (Grille Type)

16Drain Piping

17DIP Switch Setting

18Group Control Setting

23 Model Designation

23 Airborne Noise Emission

23 Limiting concentration

2 Indoor Unit

Installation Parts

Installation Parts

	Panel type		Grille type
			Air Outlet
		Air Intake
	Air	Wired Remote Controller	Air
Air Outlet	Intake		Intake	Wired Remote Controller
		(Accessory)
				(Accessory)

Installation Tool

	Name	Drain hose	Clamp metal	Washer for	Plastic band	Insulation for
				hanging bracket		fitting
	Quantity	1 EA	2 EA	8 EA	4 EA	1 SET

Shape		for gas pipe
		for liquid pipe
Name	Paper pattern for installation	Installation and Owner's manual
Quantity	1 EA	1 EA
Shape

<![if ! IE]>

<![endif]>ENGLISH

• Screws for fixing panels are attached to decoration panel.

Installation Manual 3

Safety Precautions

Safety Precautions

The following symbols are displayed on indoor and outdoor units.

			Read the precautions in this manual				This appliance is filled with flammable
			carefully before operating the unit.				refrigerant (R32)
							This symbol indicates that a service
			This symbol indicates that the Operation				personnel should be handling this
			Manual should be read carefully.				equipment with reference to the
							Installation Manual.

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

νIncorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by the following indications.

!WARNING This symbol indicates the possibility of death or serious injury.

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

νMeanings of symbols used in this manual are as shown below.

Be sure not to do.

Be sure to follow the instruction.

! WARNING

Installation

•Compliance with national gas regulations shall be observed.

•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.

4 Indoor Unit

Safety Precautions

• Do not install, remove, or re-install the unit by yourself (customer).		<![if ! IE]> <![endif]>ENGLISH
- 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 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 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.
• 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.
• Have all electric work done by a licensed electrician according to "Electric
Facility Engineering Standard" and "Interior Wire Regulations" and the
instructions given in this manual and always use a special circuit.
- If the power source capacity is inadequate or electric work is
performed improperly, electric shock or fire may result.
• Always intstall a dedicated circuit and breaker.
- Improper wiring or installation may cause fire or electric shock.
• The appliance shall be stored in a well-ventilated area where the room
size corresponds to the room area as specified for operation. (for R32)
• The appliance shall be stored in a room without continuously operating
ignition sources (for example: open flames, an operating gas appliance
or an operating electric heater.)
• Keep any required ventilation openings clear of obstruction.
• Mechanical connections shall be accessible for maintenance purposes.
• To prevent the mixing of different types of refrigerants, be sure to check
the type of refrigerant used in the outdoor unit.

Operation

•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.

Installation Manual 5

Safety Precautions

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

-There is risk of fire or electric shock.

•Do not place anything on the power cable.

-There is risk of fire or electric shock.

•Do not plug or unplug the power supply plug during operation.

-There is risk of fire or electric shock.

•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.

-There is risk of fire, failure of the product, or electric shock.

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

-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.

•If strange sounds, smell or smoke comes from product. Turn the breaker off or disconnect the power supply cable.

-There is risk of electric shock or fire.

•Stop operation and close the window in storm or hurricane.

If possible, remove the product from the window before the hurricane arrives.

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

•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 electric shock.

•Be cautious that water could not enter the product.

-There is risk of fire, electric shock, or product damage.

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

-There is risk of fire or electric shock.

•Turn the main power off when cleaning or maintaining the product.

-There is risk of electric shock.

6 Indoor Unit

Safety Precautions

• When the product is not be used for a long time, disconnect the power		<![if ! IE]> <![endif]>ENGLISH
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.
• When mechanical connectors are reused indoors, sealing parts shall
be renewed. (for R32)
• When flared joints are reused indoors, the flare part shall be re-
fabricated. (for R32)
• Periodic ( more than once/year ) cleaning of the dust or salt particles
stuck on the heat exchanger by using water.
• Do not use means to accelerate the defrosting process or to clean,
other than those recommended by the manufacturer.
• Do not pierce or burn refrigerant cycle part.
• Be aware that refrigerants may not contain an odour.

! CAUTION

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.

•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 product.

-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.

Installation Manual 7

Safety Precautions

•Any person who is involved with working on or breaking into a refrigerant circuit should hold a current valid certificate from an industryaccredited assessment authority, which authorises their competence to handle refrigerants safely in accordance with an industry recognised assessment specification. (for R32)

•The appliance shall be stored so as to prevent mechanical damage from occurring.

•Refrigerant tubing shall be protected or enclosed to avoid damage.

•Flexible refrigerant connectors (such as connecting lines between the indoor and outdoor unit) that may be displaced during normal operations shall be protected against mechanical damage.

•The installation of pipe-work shall be kept to a minimum.

•Pipe-work shall be protected from physical damage.

•A brazed, welded, or mechanical connection shall be made before opening the valves to permit refrigerant to flow between the refrigerating system parts.

•Dismantling the unit, treatment of the refrigerant oil and eventual parts should be done in accordance with local and national standards.

Operation

•Do not expose the skin directly to cool air for long periods of time. (Don't sit in the draft.)

-This could harm to 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 anything on the product. (outdoor units)

-There is risk of personal injury and failure of product.

•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.

8 Indoor Unit