LG ARNU07GM1A4 User manual

www.lg.com

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

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

For more information, Refer to the CD or LG Web site (www.lg.com).

INSTALLATION MANUAL

AIR

CONDITIONER

P/NO : MFL68821901

ENGLISH ITALIANO ESPAÑOL

FRANÇAIS

DEUTSCH

ΕΛΛΗΝΙΚΆ

ČEŠTINA

NEDERLANDS

POLSKI

LIMBA ROMÂNĂ

2Indoor Unit

TABLE OF CONTENTS

oConnecting cable

oPipes: Gas side

Liquid side

(Refer to Product

Data)

oInsulation materials

oAdditional drain pipe

oLevel gauge

oScrew driver

oElectric drill

oHole core drill

oFlaring tool set

oSpecified torque wrenches

(different depending on model No.)

oSpanner.......Half union

oA glass of water

oHexagonal wrench

oGas-leak detector

oVacuum pump

oGauge manifold

oOwner's manual

oThermometer

Features...................................3

Safety Precautions.................4

Installation

Selection the best location....9

Ceiling opening dimension

and hanging bolt location....10

Indoor Unit Installation.........11

Wiring Connection ...............11

Checking the Drainage .......12

Indoor Unit Drain Piping......13

Dip Switch Setting ...............15

Group Control Setting .........16

Model Designation ..............21

Airborne Noise Emission ....21

Limiting concentration .........21

How to Set E.S.P?................22

Installation Requirements Required Parts Required Tools

Installation Manual 3

Feature

ENGLISH

Remote Controller

Air inlet vents

Air outlet vents

(Accessory)

Features

Name Drain hose Clamp metal

Washer for

hanging bracket

Clamp

(Tie Wrap)

Insulation for

fitting

Quantity

1 EA 2 EA 8 EA 4 EA 1 SET

Shape

(Other)

• Owner's manual

•

Installation manual

for gas pipe

for liquid pipe

Installation Tool

Safety Precautions

4Indoor Unit

Safety Precautions

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

followed.

nIncorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classi-

fied by the following indications.

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

WARNING

CAUTION

This symbol indicates the possibility of death or serious injury.

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

Be sure not to do.

Be sure to follow the instruction.

WARNING

nInstallation

Do not use a defective

or underrated circuit

breaker. Use this appli-

ance on a dedicated

circuit.

• There is risk of fire or

electric shock.

For electrical work,

contact the dealer,

seller, a qualified elec-

trician, or an Author-

ized 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 dedi-

cated circuit and

breaker.

• Improper wiring or in-

stallation 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 ex-

tend the power cable.

• There is risk of fire or

electric shock.

Do not install, remove,

or re-install the unit by

yourself (customer).

• There is risk of fire,

electric shock, explo-

sion, or injury.

Be cautious when un-

packing and installing

the product.

•

Sharp edges could cause

injury. Be especially careful

of the case edges and the

fins on the condenser and

evaporator.

Installation Manual 5

Safety Precautions

ENGLISH

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. Oth-

erwise, it may cause fire or explosion.

• There is the risk of death, injury, fire or

explosion.

For installation, always con-

tact the dealer or an Author-

ized Service Center.

• There is risk of fire,

electric shock, explo-

sion, or injury.

Do not install the prod-

uct on a defective in-

stallation stand.

• It may cause injury, ac-

cident, or damage to the

product.

Be sure the installation

area does not deterio-

rate with age.

•

If the base collapses, the

air conditioner could fall

with it, causing property

damage, product failure,

and personal injury.

nOperation

Do not let the air condi-

tioner 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 fur-

niture.

Take care to ensure

that power cable could

not be pulled out or

damaged during oper-

ation.

• 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.

•

It may cause There is

risk of fire, failure of the

product, or electric shock.

Do not store or use

flammable gas or com-

bustibles 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.

Safety Precautions

6Indoor Unit

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 prod-

uct.

• There is risk of 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.

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 flammable gas

leaks, turn off the gas

and open a window for

ventilation before turn

the product on.

• Do not use the tele-

phone or turn switches

on or off. There is risk of

explosion or fire.

If strange sounds, or

small or smoke comes

from product. Turn the

breaker off or discon-

nect 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 win-

dow before the hurri-

cane arrives.

• There is risk of property

damage, failure of prod-

uct, or electric shock.

Do not open the inlet

grill of the product dur-

ing operation.

(Do not touch the elec-

trostatic 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 prod-

uct damage.

Installation Manual 7

Safety Precautions

ENGLISH

Always check for gas

(refrigerant) leakage

after installation or re-

pair 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 prod-

uct 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 peo-

ple to lift and transport

the product.

• Avoid personal injury.

Do not install the prod-

uct where it will be ex-

posed to sea wind (salt

spray) directly.

• It may cause corrosion

on the product. Corro-

sion, particularly on the

condenser and evapora-

tor fins, could cause

product malfunction or

inefficient operation.

CAUTION

nInstallation

nOperation

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 con-

ditioner, 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.

Safety Precautions

8Indoor Unit

Use a soft cloth to

clean. Do not use

harsh detergents, sol-

vents, etc.

• There is risk of fire,

electric shock, or dam-

age 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

anyting 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 condi-

tioner and could cause

product malfunction or

damage.

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.

Do not drink the water

drained from the prod-

uct.

• It is not sanitary and

could cause serious

health issues.

Use a firm stool or lad-

der when cleaning or

maintaining the prod-

uct.

• 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 dis-

assemble the batteries.

Do not dispose of bat-

teries in a fire.

• They may burn or ex-

plode.

If the liquid from the batteries gets

onto your skin or clothes, wash it well

with clean water. Do not use the re-

mote if the batteries have leaked.

• The chemicals in batteries could

cause burns or other health hazards.

If you eat the liquid from the batter-

ies, brush your teeth and see doc-

tor. Do not use the remote if the

batteries have leaked.

• The chemicals in batteries could

cause burns or other health hazards.

Installation Manual 9

Installation

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 allow easy water drainage.

• 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.

Read completely, then follow step by step.

Front view (Unit: mm)

(Unit: mm)

Top view

Front

Inspection hole(1)

600 x 600

Inspection hole(2)

600 x 600

Control box

1000

Air outlet vents

Air inlet vents

600 600

More than 20

ENGLISH

Installation

Selection of the best location

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 ap-

propriate anti-corrosion measures.

[Inspection Hole Standard]

Number of

inspection hole

Distance between

false ceiling & actual ceiling

Remarks

1 More than 100cm

Sufficient space in the ceiling for servicing.

2 20cm to 100cm

Insufficient space. Difficult for servicing

Hole size should be more

than the size of IDU.

Less than 20cm

Minimum height for motor replacement.

10 Indoor Unit

Installation

nInstallation of Unit

Install the unit above the ceiling correctly.

• Apply a joint-canvas between the unit and duct

to absorb unnecessary vibration.

• Install the unit leaning to a drainage hole side

as a figure for easy water drainage.

• A place where the unit will be leveled and that

can support the weight of the unit.

•

A place where the unit can withstand its vibration.

• A place where service can be easily performed.

POSITION OF SUSPENSION BOLT

Drain hole

M10 Nut

M10 washer

X 4

M10 Nut

M10 washer

X 4

X 8

• Throughly study the following installation locations:

In such places as restaurants and kitchens, considerable amount of oil steam and flour adhere to the fan, the fin of the heat ex-

changer, resulting in heat exchange reduction, spraying, dispersing of water drops, etc. In these cases, take the following actions:

• Make sure that the ventilation fan for smoke-collecting hood on a cooking table has sufficient capacity so that it draws oily

steam which should not flow into the suction of the air conditioner.

•

Make enough distance from a cooking room to install the air conditioner in such a place where it may not suck in oil steam.

2. Avoid installing air conditioner in such circumstances where cutting oil mist or iron powder is in suspension in factories, etc.

3. Avoid places where inflammable gas is generated, flows in, is stored or vented.

4. Avoid places where sulfurous acid gas or corrosive gas is generated.

5. Avoid places near high frequency generators.

NOTICE

Ceiling dimension and hanging bolt location

(Unit:mm)

Dimension A B C D E F G H I J

Chassis name

M1 933.4 971.6 619.2 700 30 270 15.2 858 201.4 900

M2 1283.4 1321.6 619.2 700 30 270 15.2 1208 201.4 1250

M3 1283.4 1321.6 619.2 700 30 360 15.2 1208 291.4 1250

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