LG ARNU07GL1G4 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 Concealed Duct - Low Static

Original instruction

www.lg.com

P/NO : MFL69459902

Ceiling Concealed Duct - Low Static Type Indoor Unit Installation Manual

TABLE OF CONTENTS

Installation Requirements		Required Parts	Required Tools

Features...................................	3
Safety Precautions.................	4
Installation			ο Level gauge
		ο Four type "A" screws	ο Screw driver
Selection the best location	7	ο Connecting cable	ο Electric drill
Selection the best location	7		ο Hole core drill
Ceiling opening dimension		ο Pipes: Gas side	ο Flaring tool set
and hanging bolt location......	8	Liquid side	ο Specified torque wrenches
		(Refer to Product	(different depending on model No.)
		Data)	ο Spanner.......	Half union
Indoor Unit Installation ..........	9	ο Insulation materials
		ο Additional drain pipe

Wiring Connection.................	9
Checking the Drainage .......	10
Indoor Unit Drain Piping......	11
Dip Switch Setting...............	13

οA glass of water

οScrew driver

οHexagonal wrench

οGas-leak detector

οVacuum pump

οGauge manifold

οOwner's manual

οThermometer

Group Control Setting .........	14
Model Designation ..............	19
Airborne Noise Emission ....	19
Limiting concentration.........	19
How to Set E.S.P?................	20

2 Indoor Unit

Feature

Features

Air outlet vents

Air filters

Air intake vents

Control box

Wired Remote Controller

Installation Tool

Name	Drain hose	Clamp metal	Washer for	Clamp	Insulation for	(Other)
Name	Drain hose	Clamp metal	hanging bracket	(Tie Wrap)	fitting	(Other)
Quantity	1 EA	2 EA	8 EA	4 EA	1 SET
						• Owner's manual
						• Installation manual
Shape					for gas pipe
Shape
					for liquid pipe

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Installation Manual 3

Safety Precautions

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.

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

Be sure not to do.

Be sure to follow the instruction.

WARNING

ν Installation

Do not use a defective or under-	For electrical work, contact the
rated circuit breaker. Use this	dealer, seller, a qualified electri-
appliance on a dedicated circuit.	cian, or an Authorized Service
	Center.

•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.

Do not modify or extend the power cable.

•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.

Do not install, remove, or re-in- stall the unit by yourself (customer).

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

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.

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.

4 Indoor Unit

	Safety Precautions
Do not turn on the breaker or power under condi-	Use a vacuum pump or Inert (nitrogen) gas when
tion that front panel, cabinet, top cover, control	doing leakage test or air purge. Do not compress
box cover are removed or opened.	air or Oxygen and Do not use Flammable gases.
	Otherwise, it may cause fire or explosion.
• Otherwise, it may cause fire, electric shock, explosion	• There is the risk of death, injury, fire or explosion.
or death.

ν Operation

Do not let the air conditioner run	Take care to ensure that power
for a long time when the humid-	cable could not be pulled out or
ity is very high and a door or a	damaged during operation.
window is left open.
• Moisture may condense and wet or	• There is risk of fire or electric
damage furniture.	shock.
Do not plug or unplug the power	Do not touch(operate) the prod-
supply plug during operation.	uct with wet hands.

•There is risk of fire or electric shock.

Do not allow water to run into electric parts.

•It may cause There is risk of fire, failure of the product, or electric shock.

When flammable gas leaks, turn off the gas and open a window for ventilation before turn the product on.

•There is risk of fire or electrical shock.

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

•There is risk of fire or failure of product.

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

• Do not use the telephone or turn	• There is risk of electric shock or
switches on or off.	fire.
There is risk of explosion or fire.

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.

Do not use the product in a tightly closed space for a long time.

•Oxygen deficiency could occur.

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	When the product is soaked	Be cautious that water could not
product during operation.	(flooded or submerged), contact	enter the product.
(Do not touch the electrostatic	an Authorized Service Center.
filter, if the unit is so equipped.)
• There is risk of physical injury,	• There is risk of fire or electric	• There is risk of fire, electric shock,
electric shock, or product failure.	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.

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.

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

•There is risk of electric shock.

Take care to ensure that nobody could step on or fall onto the outdoor unit.

•This could result in personal injury and product damage.

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Installation Manual 5

Safety Precautions

CAUTION

ν Installation

Always check for gas (refrigerant) leakage	Install the drain hose to ensure that
after installation or repair of product.	water is drained away properly.
• Low refrigerant levels may cause	• A bad connection may cause
failure of product.	water leakage.
Do not install the product where the noise	Use two or more people to lift and
or hot air from the outdoor unit could dam-	transport the product.
age the neighborhoods.
• It may cause a problem for your	• Avoid personal injury.
neighbors.

Keep level even when installing the product.

•To avoid vibration or water leakage.

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.

ν 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	Do not touch the metal parts of the
use harsh detergents, solvents,	product when removing the air filter.
etc.	They are very sharp!
• There is risk of fire, electric	• There is risk of personal injury.
shock, or damage to the plastic
parts of the product.
Always insert the filter securely.	Do not insert hands or other objects
Clean the filter every two weeks or	through the air inlet or outlet while the
more often if necessary.	product is operated.
• A dirty filter reduces the efficiency of	• There are sharp and moving parts
the air conditioner and could cause	that could cause personal injury.
product malfunction or damage.

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.

•It is not sanitary and could cause serious health issues.

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

• Be careful and avoid 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.

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.

6 Indoor Unit

Installation

Selection of the best location

Indoor unit

Install the air conditioner in the location that satisfies the following conditions.

•The place shall easily bear a load exceeding four times the indoor unit’s weight.

•The place shall be able to inspect the unit as the figure.

•The place where the unit shall be leveled.

•The place shall easily connect with the outdoor unit.

•The place where the unit is not affected by an electrical noise.

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

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

Confirm the positional relationship between the unit and suspension bolts.

•Installation the ceiling opening to clean the filter or service under the product.

		(Unit: mm)

Capacity (kBtu/h)	A	B

5/7/9	800	800

12/15/18	800	1000

21/24	800	1200

Top view (Unit: mm)	Inspection hole	Control box
	(600 x 600)
600	Air outlet	600
		600

Side view (unit: mm)

Air outlet

H=20 or more

•Suitable dimension "H" is necessary to get a slope to drain as shown in the figure

A(Min)	B(Min)

Ceiling

Service Space

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Installation Manual 7

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