LG LTNH368DLE1 Installation Manual

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.

TYPE : CEILING CASSETTE

www.lg.com

P/NO : 3828A10001Y

Ceiling Cassette Air Conditioner Installation Manual

TABLE OF CONTENTS

Installation

Required Parts

Requirements

Safety Precautions............................	3
Introduction........................................	8
Symbols used in this Manual..........	8
Features ...........................................	8
Installation ..........................................	9
Installation Tools...............................	9
Installation of Indoor, Outdoor
Unit ................................................	10
Air purging......................................	22
Test running.................................	24
Optional operation .....................	26
Installation guide at the seaside ...	29

Connecting cable

Pipes: Gas side Liquid side

Hanging Bolt

(W 3/8 or M10 length 650mm)

Insulated drain hose

Additional Drain hose (Inner Dia.............32mm)

Required Tools

Horizontal meter

Screw driver

Electric drill

Hole core drill (ø70mm)

Flaring Tools set

Torque Wrenches

Hexagonal Wrench (4mm, 5mm)

Gas-leak detector

Owner’s Manual

Installation Manual

Thermometer

2 Ceiling Cassette Air Conditioner

				Safety Precautions
	Safety Precautions
To prevent injury to the user				damage, the following instructions
must be followed.
■ Incorrect operation due				harm or damage. The seriousness
is classified by the following
			This	of death or serious injury.
			This	of injury or damage.
■ Meanings of symbols used				below.

not to do.

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		Always ground the product.
the dealer, seller, a qualified
electrician, or an Authorized
Service Center.
• Do not disassemble or repair the		• There is risk of fire or electric
product. There is risk of fire or		shock.
electric shock.

Install the panel and the cover	Always install a dedicated	Use the correctly rated breaker
of control box securely.	circuit and breaker.	or fuse.

•There is risk of fire or electric shock.

•Improper wiring or installation may cause fire or electric shock

•There is risk of fire or electric shock.

Installation Manual 3

Safety Precautions

Do not modify or extend the power cable.

Do not install, remove, or re-	Be cautious when unpacking
install the unit by yourself	and installing the product.
(customer).

•There is risk of fire or electric shock.

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

•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.

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.

■ 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.

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

•There is risk of fire or electric shock.

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 touch(operate) the product with wet hands.

•There is risk of fire or electrical shock.

Do not place anything on the power cable.

•There is risk of fire or electric shock.

Do not place a heater or other appliances near the power cable.

•There is risk of fire and electric shock.

4 Ceiling Cassette Air Conditioner

Safety Precautions

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 product.

•There is risk of fire or failure of product.

Gasolin

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

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.

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

•There is risk of electric shock or fire.

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

•There is risk of fire or electric shock.

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.

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.

Installation Manual 5

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.

■ 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		Keep level even when
ensure that water is drained		installing the product.
away properly.
• A bad connection may cause		• To avoid vibration or water
water leakage.		leakage.

90˚

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

Use two or more people to lift and transport the product.

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

• It may cause a problem for your		• Avoid personal injury.		• It may cause corrosion on the product.
neighbors.					Corrosion, particularly on the condenser
					and evaporator fins, could cause product
					malfunction or inefficient operation.

■ 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.

6 Ceiling Cassette Air Conditioner

Do not block the inlet or outlet of air flow.

• It may cause product failure.

Do not step on or put anyting on the product. (outdoor units)

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

Do not drink the water drained from the product.

Use a soft cloth not use harsh solvents, etc.

•There is risk of shock, or parts of the

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.

Use a firm stool or ladder when cleaning or maintaining the product.

• It is not sanitary and could cause	• Be careful and avoid personal
serious health issues.	injury.

Do not insert hands or other objects through the air inlet or outlet while the product is operated.

•There are sharp and moving parts that could cause 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.

Introduction

Introduction

SymbolsusedinthisManual

This symbol alerts you to the risk of electric shock.

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

NOTICE This symbol indicates special notes.

Features

Heat Pump Model

Anti-bacteria

Signal Receptor

Air

Intake	Cooling Model
Air Outlet
	Remote
	Controller
	Signal Receptor

8 Ceiling Cassette Air Conditioner

Installation

Installation

InstallationTools

Figure	Name	Figure	Name
	Screw driver		Ohmmeter

Electric drill

Hexagonal wrench

Measuring tape, Knife

Ammeter

	Hole core drill	Gas-leak detector
	Spanner	Thermometer,
		Horizontal meter

Torque wrench

Flaring tool set

Installation Manual 9

Installation

InstallationofIndoor,OutdoorUnit

Selection of the best location

1)Indoor unit

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

•There should not be any obstacles to prevent 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 keep the maintenance space.

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Ceiling Board				<![if ! IE]> <![endif]>or
				<![if ! IE]> <![endif]>30
						<![if ! IE]> <![endif]>less
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				Floor

	2) Outdoor unit	More		Sunroof
	• If an awning is built over the unit to prevent
		30cm
	direct sunlight or rain exposure, be careful that
	heat radiation from the condenser is not			More than
	restricted.
		Fence		30cm
	• There should not be any animals or plants		or
	which could be affected by hot air discharged.
	• Ensure the spaces indicated by arrows from	obstacles		More than 50cm
	the wall, ceiling, fence or other obstacles.
				More than 70cm

10 Ceiling Cassette Air Conditioner