LG MFL67568401 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 : MFL67568401

www.lg.com

TYPE: Ceiling Cassette - 1Way (Art Type)

ENGLISH ITALIANO ESPAÑOL FRANÇAIS DEUTSCH

2Indoor Unit

Ceiling Cassette - 1Way(Art Type) Type Indoor Unit Installation Manual

TABLE OF CONTENTS

o Installation guide map

oFour type "A" screws & plastic

anchors

oConnecting cable

oPipes: Gas side

Liquid side

oInsulation materials

oAdditional drain pipe

oLevel gauge

oScrew driver

oElectric drill

oHole core drill

oHorizontal meter

oFlaring tool set

oSpecified torque wrenches

oSpanner .......Half union

oHexagonal wrench

oGas-leak detector

oVacuum pump

oGauge manifold

oOwner's manual

oThermometer

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

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

Installation ...............................7

Selection of the Best Location

...7

Ceiling Dimension and

Hanging Bolt Location ...........8

Installation of Decoration

Panel (Grille Type) .................9

Drain Piping .........................10

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

Installation of Wired Remote

Controller..............................13

Name and function of wired

remote controller(Accessory)

..............................................15

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

Installation Requirements Required Parts Required Tools

Installation Manual 3

Installation Parts

ENGLISH

RemoteController

TEMP

Wired remote

controller

Inlet

Outlet

Installation Parts

Name

Quantity

Shape for gas pipe

for liquid pipe

Clamp metal

2 EA

Insulation for

fitting

1 SET

Drain hose

1 EA

Plastic band

8 EA

Washer for

hanging bracket

4 EA

Name

Quantity

Shape

Paper pattern for installation

1EA

Installation and Owner's manual

1EA

Grille type

Safety Precautions

4Indoor Unit

Safety Precautions

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

nBe sure to read before installing the air conditioner.

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

nIncorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by the

following indications.

nMeanings 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.

nInstallation

Do not use a defective or underrated circuit

breaker. Use this appliance on a dedicated 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 install a dedicated circuit and breaker.

• Improper wiring or installation may cause fire or electric

shock.

Use the correctly rated breaker or fuse.

• There is risk of fire or electric shock.

Installation Manual 5

Safety Precautions

ENGLISH

nOperation

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.

For installation, always contact the dealer or an

Authorized Service Center.

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

Otherwise, it may cause fire or explosion.

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

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

• There is risk of fire or failure of product.

Gasolin

Safety Precautions

6Indoor Unit

Install the drain hose to ensure that water is

drained away properly.

• A bad connection may cause 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.

nInstallation

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:mm

Ceiling

Ceiling board

200 or more

Above 2500

3300 or less

1000

or more

500 or

300 or less

Floor

Installation

Selection of the Best Location

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-corro-

sion measures.

• 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

Use the ventilation fan

for smoke-collecting

hood with sufficient

capacity.

Cooking table

Air conditioner

Take enough

distance

Installation

8Indoor Unit

Ceiling Dimension and Hanging Bolt Location

Level gauge

Ceiling

(unit: mm)

TT Chassis

TU Chassis

1,285

1,385

250

600 50

466

1,180

448

600

250

965

1,065

50 50

466

860

448

306

400 4040

306

354

Ceiling board

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

• 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.

Set screw of

paper model (4 pieces)

Paper model

for installation

Ceiling board

70mm

Adjust the same height

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 model

Flat washer for M10

(accessory)

Hanging bolt

(W3/8 or M10)

Nut

(W3/8 or M10)

Nut

(W3/8 or M10)

Spring washer

(M10)

Air conditioner body

Keep the length of 20~22mm

between the air conditioner bottom

surface and the ceiling surface

• 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

Tighten the nut and bolt to prevent unit

from falling off.

• 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

Installation Manual 9

ENGLISH

Installation

1. Open the air outlet vane, and extract side covers.

2. Remove the air inlet grille from the decoration panel.

Hook decoration panel to indoor unit, using hooks attached at the backside of both side of decoration panel.

4. Arrange wires not to get caught between decoration panel and indoor unit.

5. Screw 7 fixing screws. (9, 12kBtu/h : 6 screws)

6. Connect the vane motor connector and display connector. (Plasma connector for plasma model)

7. Install the air inlet grille (including the air filter) and side covers.

Air conditioner unit

Decorative panel

Plasma filter

(applied only to plasma model)

Mesh

Control box cover

Decorative panel

fixing screws

(hexagon M6 screws)

(tightening about 20mm)

Side cover

Air inlet grille

The decoration panel has its installation

direction.

Before installing the decoration panel,

always remove the paper template.

Cool air leakage

(no good)

Decorative panel

Air conditioner

unit

Ceiling

board

Fit the insulator (this part) and

be careful for cool air leakage

Decorative panel

Air conditioner

unit

Ceiling

board

Good example Bad example

Installation of Decoration Panel (Grille Type)

Install certainly the

decoration panel.

Cool air leakage caus-

es sweating.

Waterdrops fall.

10 Indoor Unit

Installation

• Drain piping must have down-slope (1/50 to 1/100): be sure not to

provide up-and-down slope to prevent reversal flow.

• During drain piping connection, be careful not to exert extra force

on the drain port on the indoor unit.

• The outside diameter of the drain connection on the indoor unit is

32mm.

•

Be sure to install heat insulation on the drain piping.

Piping material: Polyvinyl chloride pipe VP-25 and

pipe fittings

The air conditioner uses a drain pump to drain water.

Use the following procedure to test the drain pump operation:

• Connect the main drain pipe to the exterior

and leave it provisionally until the test

comes to an end.

• Feed water to the flexible drain hose and

check the piping for leakage.

• Be sure to check the drain pump for normal

operating and noise when electrical wiring

is complete.

• When the test is complete, connect the flex-

ible drain hose to the drain port on the

indoor unit.

Heat insulation material: Polyethylene foam with thick-

ness more than 8 mm.

Drain Test

Maintenance

drain port

Upward

routing

not allowed

Pipe clamp

Indoor unit

1/50~1/100

Max 700mm

Feed water

Drain pump

Drain pan

Flexible drain hose

(accessory)

Main

drain pipe

Glue the joint

Drain

port

Drain hose connection

Use the clip (accessory)

1/50~1/100 slope

Hanger

distance Hanger bracket

Max 700mm

Flexible drain hose

Insulation

Metal

clamp

Max 300mm 1~15m

Drain Piping

The supplied flexible drain hose should

not be curved, neither screwed. The

curved or screwed hose may cause a leak-

age of water.

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