LG JRNU28GBGA4, JRNU42GBGA4, JRNU36GBGA4 INSTALLATION MANUAL

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INSTALLATION MANUAL

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 CONCEALED DUCT - HIGH STATIC

P/No.: MFL66302102_v0

www.lg.com/in

Ceiling Concealed Duct - High Static Type Indoor Unit Installation Manual

TABLE OF CONTENTS

Installation Requirements
Features.....................................	3
Safety Precautions....................	4
Installation
Selection the best location ....	7
Ceiling opening dimension
and hanging bolt location ......	8
Indoor Unit Installation...........	9
Wiring Connection .................	9
Checking the Drainage........	10
Installation of Remote con-
troller.....................................	13
Optional Operation of Wired
Remote Controller ...............	15
How to Set E.S.P?..............	16
Dip Switch Setting ..............	19

Required Parts

qFour type "A" screws qConnecting cable

qPipes: Gas side Liquid side

(Refer to Product Data) qInsulation materials qAdditional drain pipe

Required Tools

qLevel gauge qScrew driver qElectric drill qHole core drill

qFlaring tool set qSpecified torque wrenches

(different depending on model No.) qSpanner .......Half union

qA glass of water qScrew driver

qHexagonal wrench qGas-leak detector qVacuum pump qGauge manifold

qOwner's manual qThermometer

2 Indoor Unit

Features

Air outlet vents

Air filters

Air intake vents

Wired Remote Controller

Feature

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

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. Be sure to read before installing the air conditioner.

Be sure to observe the cautions specified here as they include important items related to safety.

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.

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.

Install the panel and the cover of control box securely.

•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 install a dedicated circuit and breaker.

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

Always ground the product.

•There is risk of fire or electric shock.

Use the correctly rated breaker or fuse.

•There is risk of fire or electric shock.

4 Indoor Unit

		Safety Precautions
Do not modify or extend the	Do not let the air conditioner	Be cautious when unpacking
power cable.	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 fire 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 fins
		on the condenser and evapo-
		rator.

For installation, always con-	Do not install the product on	Be sure the installation area
tact the dealer or an	a defective installation stand.	does not deteriorate with age.
Authorized Service Center.
• There is risk of fire, electric	• It may cause injury, accident,	• If the base collapses, the air
shock, explosion, or injury.	or damage to the product.	conditioner could fall with it,
		causing property damage,
		product failure, and personal
		injury.

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Operation

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

• There is risk of fire or failure of product.

Gasolin

Installation Manual 5

Safety Precautions

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.

90º

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.

If you eat the liquid from the batteries, brush your teeth and see doctor. Do not use the remote if the batteries have leaked.

•The chemicals in batteries could cause burns or other health hazards.

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.

Make sure to check the rated pressure outside machine and adjust E.S.P value after the installation of the product.

• Otherwise, there is a risk of weak cooling/heating and condensed water emission/dripping.

6 Indoor Unit