LG MultiV Series Manuale utente

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.

P/NO : MFL42803102

www.lg.com

TYPE : CEILING CASSETTE - 2WAY

ENGLISH ITALIANO ESPAÑOL FRANÇAIS DEUTSCH

PORTUGUÊS

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2Indoor Unit

Ceiling Cassette - 2Way Type Indoor Unit Installation Manual

TABLE OF CONTENTS

❏ 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

❏Specified torque wrenches

(different depending on model No.)

❏Spanner .......Half union

❏Hexagonal wrench

❏Gas-leak detector

❏Vacuum pump

❏Gauge manifold

❏Owner's manual

❏Thermometer

Installation Parts ....................3

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

Installation

Selection of the best location 7

Ceiling dimension and hang-

ing bolt location ......................8

Wiring Connection .................9

Installation of Decoration

Panel ....................................10

Drain Piping..........................11

Installer Setting -Thermistor

...13

Name and function of wired

remote controller

(Accessory) ..........................15

Dip Switch Setting ...............16

Group Control Setting..........17

Installation Requirements Required Parts Required Tools

Installation Manual 3

Installation Parts

ENGLISH

Anti-bacteria filter

Air Outlet

Air Intake

Wired Remote

Controller

TEMP

Installation Parts

Name

Quantity

Shape for gas pipe

for liquid pipe

Clamp metal

2 EA

Insulation for

fitting

1 set

Drain hose

1 EA

Clamp

(Tie Wrap)

8 EA

Washer for

hanging bracket

4 EA

(Other)

¥ Screws for fixing panels are attached to decoration panel.

¥ Paper pattern for

installation

¥ Owner’s manual

¥ Installation manual

4Indoor Unit

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.

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

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.

■Installation

Do not use a defective or

underrated circuit breaker.

Use this appliance on a dedi-

cated circuit.

• 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 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 dedicated

circuit and breaker.

• Improper wiring or installation

may cause fire or electric

shock.

Use the correctly rated break-

er or fuse.

• There is risk of fire or electric

shock.

Installation Manual 5

Safety Precautions

ENGLISH

■Operation

Do not modify or extend the

power cable.

• There is risk of fire or electric

shock.

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.

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 evapo-

rator.

For installation, always con-

tact 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.

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

• There is risk of fire or failure of product.

Gasolin

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.

6Indoor Unit

Safety Precautions

Always check for gas (refrig-

erant) leakage after installa-

tion 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.

Do not install the product

where the noise or hot air from

the outdoor unit could dam-

age the neighborhoods.

• It may cause a problem for

your neighbors.

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 evapora-

tor fins, could cause product

malfunction or inefficient opera-

tion.

90˚

■Installation

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.

Installation Manual 7

Installation

ENGLISH

• 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.

Read completely, then follow step by step.

Unit:cm

Ceiling

Ceiling Board

20 or more

Above 200

300 or less

100

or more

50 or

30 or less

Floor

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

appropriate anti-corrosion measures.

8Indoor Unit

Installation

Ceiling dimension and hanging bolt location

Level gauge

Ceiling

Ceiling board

1010 (Ceiling opening)

877 (Hanging bolt)

482(Hanging bolt)

830 60

550

600 (Ceiling opening)

(unit: mm)

• The dimensions of the paper model for installation are the same as those of the ceiling opening dimensions.

• Avoid the following installation location.

1. Such places as restaurants and kitchen where considerable amount of oil steam and flour is generated.

These may cause heat exchange efficiency reduction, or water drops, drain pump mal-function.

In these cases, take the following actions;

• Make sure that ventilation fan is enough to cover all noxious gases from this place.

• Ensure enough distance from the cooking room to install the air conditioner in such a place where it may

not suck oily steam.

2. Avoid installng air conditioner in such

places where cooking oil or iron powder is

generated.

3. Avoid places where inflammable gas is

generated.

4. Avoid place where noxious gas is

generated.

5. Avoid places near high frequency

generators.

NOTICE

CAUTION :

• This air-conditioner uses a drain

pump.

• Install the unit horizontally using a

level gauge.

• During the installation, care should

be taken not to damage electric

wires.

• Select and mark the position for fixing bolts and piping hole.

• Decide the position for fixing bolts slightly tilted to the drain

direction after considering the direction of drain hose.

• Drill the hole for anchor bolt on the wall.

Use the ventilation fan

for smoke-collecting

hood with sufficient

capacity.

Cooking table

Air conditioner

Take enough

distance

Installation Manual 9

Installation

ENGLISH

Set screw of

paper pattern (4 pieces)

Paper pattern

for installation

False ceiling board

90mm

Adjust the same height

False

ceiling board

Ceiling

Flat washer for M10

(accessory)

Keep the length of the bolt

from the bracket to 40mm

Open the ceiling board

along the outer edge of the

paper pattern

Flat washer for M10

(accessory)

Hanging bolt

(W3/8 or M10)

Nut

(W3/8 or M10)

Nut

(W3/8 or M10) Air Conditioner body

• The following parts are local purchasing.

①Hanging Bolt - W 3/8 or M10

②Nut - W 3/8 or M10

③Spring Washer - M10

④Plate Washer - M10

Terminal Block Indoor

1(L) 2(N) 3 4

INDOOR POWER INPUT

IDU IDU

Outdoor unit Indoor unit

Central controller

SODU SODU

DRY1 DRY2 GND

INTERNET 12V

Outdoor unit

Connect the wires to the terminals on the control board individually according to the outdoor unit connection.

• Ensure that the color of the wires of outdoor unit and the terminal No. are the same as those of indoor unit respectively.

Wiring Connection

WARNING : Make sure that the screws of the terminal are free from looseness.

CAUTION : The Power cord connected to the unit should be selected according

to the following specifications.

CAUTION : Tighten the nut and bolt

to prevent the unit from falling.

10 Indoor Unit

Installation

1. Temporarily fix two decoration panel fixing screws (hexagon M5 screw) on the unit body. (Tighten by

amount 10mm in length.)

The fixing screws (hexagon M5 screw) are included the indoor unit box.

2. Remove the air inlet grille from the decoration panel. (Remove the hook for the air inlet grille cord.)

3. Hook the decoration panel key hole ( ) on the screws fixed in step above, and slide the panel so

that the screws reach the key hole edge.

4. Retighten completely two temporarily fixed screws and other two screws. (Total 4 screws)

5. Connect the louver motor connector and display connector.

6. After tightening these screws, install the air inlet grille (including the air filter).

Piping side

Air conditioner unit

Decorative panel

Push

Decorative panel

fixing screws

(hexagon M6 screws)

Temporary fitting

at 2 poles

(Tightening about 10mm)

Control box cover

Cover

Plasma filter

Key holes

Decorative panel

fixing screws

(Hexagon M6 screw)

Louver motor

Ratch

pull

Inlet Grille

The decoration panel has its installation

direction.

Before installing the decoration panel,

always remove the paper template.

Cool air leakage

(no good)

Decoration panel

Air conditioner

unit

Ceiling

board

Fit the insulator (this part) and

be careful for cool air leakage

Decoration panel

Air conditioner

unit

Ceiling

board

Correct method Wrong method

Installation of Decoration Panel

CAUTION : Install

certainly the deco-

ration panel.

Cool air leakage

causes sweating.

Water drops fall.

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