LG JRNU48GTMA4, JRNU09GTPA4, JRNU42GTMA4, JRNU12GTPA4, JRNU18GTPA4 INSTALLATION MANUAL

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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.

Ceiling Cassette – 4Way

www.lg.com

P/NO : MFL65920802

Ceiling Cassette - 4Way Type Indoor Unit Installation Manual

TABLE OF CONTENTS

Installation Requirements

Installation Parts ....................	3
Safety Precautions.................	4
Installation

Selection of the best location...6

Ceiling dimension and hang-
ing bolt location......................	7
Wiring Connection .................	8
Installation of Decoration
Panel ....................................	10
Drain Piping..........................	11
Ceiling Height Selection......	12

Required Parts		Required Tools

Installation guide map

Four type "A" screws & plastic anchors

Connecting cable

Pipes: Gas side

Liquid side (Refer to Product Data)

Insulation materials

Additional drain pipe

Level gauge

Screw driver

Electric drill

Hole core drill

Horizontal meter

Flaring tool set

Speci ed torque wrenches (different depending on model No.)

Spanner .......Half union

Dip Switch Setting ...............	13
Group Control Setting..........	14
Airborne Noise Emission.....	19
Limiting concentration .........	19

Hexagonal wrench

Gas-leak detector

Vacuum pump

Gauge manifold

Owner's manual

Thermometer

2 Indoor Unit

LG JRNU48GTMA4, JRNU09GTPA4, JRNU42GTMA4, JRNU12GTPA4, JRNU18GTPA4 INSTALLATION MANUAL

Installation Parts

Anti-bacteria lter

Air

Intake

Air Outlet

Wired Remote Controller(Accessory)

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Installation Tool

Name	Drain hose	Clamp metal	Washer for	Clamp	Insulation for	(Other)
Name	Drain hose	Clamp metal	hanging backet	(Tie Wrap)	tting	(Other)
			hanging backet	(Tie Wrap)	tting
Quantity	1 EA	2 EA	8 EA	4 EA	1 SET
						Paper pattern for
						installation
						Owner's manual
Shape					for gas pipe	Installation manual
Shape					for gas pipe
					for liquid pipe

Screws for xing panels are attached to decoration panel.

Installation Manual 3

Safety Precautions

To prevent injury to 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 speci ed here as they include important items related to safety.

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

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 re or electric shock.

For electrical work, contact	Always ground the product.
the dealer, seller, a quali(ed
electrician, or an Authorized
Service Center.
Do not disassemble or repair	There is risk of re or electric
the product. There is risk of re	shock.
or electric shock.

Install the panel and the	Always install a dedicated	Use the correctly rated break-
cover of control box securely.	circuit and breaker.	er or fuse.
There is risk of re or electric	Improper wiring or installation	There is risk of re or electric
shock.	may cause re or electric	shock.
	shock.

Do not modify or extend the power cable.

Do not let the air conditioner	Be cautious when unpacking
run for a long time when the	and installing the product.
humidity is very high and a
door or a window is left open.

There is risk of re or electric	Moisture may condense and	Sharp edges could cause
shock.	wet or damage furniture.	injury. Be especially careful of
		the case edges and the ns on
		the condenser and evaporator.

4 Indoor Unit

		Safety Precautions
For installation, always con-	Do not install the product on	Be sure the installation area
tact the dealer or an Autho-	a defective installation stand.	does not deteriorate with age.
rized Service Center.
There is risk of re, electric	It may cause injury, accident, or	If the base collapses, the air
shock, explosion, or injury.	damage to the product.	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 ammable gases.

Otherwise, it may cause re or explosion.

There is the risk of death, injury, re 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 re, electric shock, explosion or death.

Operation

Do not store or use ammable gas or combustibles near the product.

There is risk of re 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	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.

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

Avoid personal injury.

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Installation Manual 5

Installation

Read completely, then follow step by step.

Selection of the best location

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.

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Ceiling					<![if ! IE]> <![endif]>300(11-13/16	<![if ! IE]> <![endif]>or more	Ceiling Board
Ceiling Board							Ceiling Board
Ceiling Board								<![if ! IE]> <![endif]>less
								<![if ! IE]> <![endif]>less
500(19-11/16)	<![if ! IE]> <![endif]>1000(39-3/8)	<![if ! IE]> <![endif]>or more	<![if ! IE]> <![endif]>Above 2500(98-7/16)	<![if ! IE]> <![endif]>4000(157-1/2) or less	500(19-11/16)			<![if ! IE]> <![endif]>-13/16) or
500(19-11/16)					500(19-11/16)			<![if ! IE]> <![endif]>300(11
or more						or more

								Unit:mm(inch)
					Floor

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.

6 Indoor Unit

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