LG LC340CP User manual

ENGLISH FRANÇAIS ESPAÑOL

LG Casstte Type

Air Conditioner

INSTALLATION MANUAL

website http://www.lgservice.com

IMPORTANT

• 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.

2Cassette type Air Conditioner

Cassette Type Air Conditioner Installation Manual

TABLE OF CONTENTS

Safety Precautions .....3

Installation of Indoor,

Outdoor unit................6

Ceiling opening

dimensions and hanging

bolt location

..................8

The indoor unit

installation...................9

Remote controller

installation...................9

Wiring connection ....11

Connecting Pipes to

the Indoor Unit..........13

Installation of

decorative panel .......15

Indoor unit drain piping

....................................16

Test running..............19

Optional operation....21

•

Connecting cable

• Four Type "A" Screw

• Hanging Bolt

(W 3/8 or M10 length 650mm)

• Pipes: Gas side

Liquid side

• Insulated drain hose

• Additional Drain hose

(Inner Dia.............32mm)

•

Level

•

Screw driver

•

Electric drill

•

Hole core drill (ø70mm)

• Flaring Tools set

• Torque Wrenches

• Hexagonal Wrench (4mm, 5mm)

• Gas-leak detector

•

Owner’s Manual

•

Thermometer

Installation

Requirements Required Parts Required Tools

Safety Precautions

Installation Manual 3

ENGLISH

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

must be followed.

■

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.

WARNING

CAUTION

This symbol indicates the possibility of death or serious injury.

This symbol indicates the possibility of injury or damage.

WARNING

Be sure not to do.

Be sure to follow the instruction.

Safety Precautions

■Installation

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 breaker

or fuse.

• There is risk of fire or

electric shock.

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 ground the product.

• There is risk of fire or

electric shock.

4Cassette type Air Conditioner

Safety Precautions

Do not modify or extend the power cable.

• 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.

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.

Do not store or use flammable gas or combustibles

near the product.

• There is risk of fire or failure of product.

■Operation

Gasolin

Installation Manual 5

ENGLISH

Safety Precautions

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.

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.

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.

CAUTION

90°

■Installation

6Cassette type Air Conditioner

Installation of Indoor, Outdoor Unit

1. Indoor unit

•There should not be any heat source or

steam near the unit.

•There should not be any obstacles to

prevent 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 keep the

maintenance space.

2. Outdoor unit

•If an awning is built over the unit to prevent

direct sunlight or rain exposure, be careful

that heat radiation from the condenser is

not restricted.

•There should not be any animals or plants

which could be affected by hot air

discharged.

•Ensure the spaces indicated by arrows

from the wall, ceiling, fence or other

obstacles.

Selection of the best location

Unit:cm

Ceiling

Ceiling Board Ceiling Board

30 or more

Above 250

330 or less

100

or more

50 or

30 or less

Floor

More than

30cm

Sunroof

Fence or

obstacles

More than 70cm

More than 50cm

More than

30cm

More than

30cm

More than

50cm

Fence or

obstacles

More than 100cm

More than 50cm

More than

30cm

More than

50cm

Sunroof

Installation Manual 7

ENGLISH

Installation of Indoor, Outdoor Unit

3. Piping length and the elevation

Gas Liquid Standard Max. Standard Max.

24k Btu/h

1/2"(12.7mm) 1/4"(6.35mm)

7.5(25') 30(100') 5(16') 15(50') 20(0.22 oz./ft.)

34k Btu/h

5/8"(15.88mm) 1/4"(6.35mm)

7.5(25') 35(115') 5(16') 20(66') 30(0.32 oz./ft.)

Capacity Pipe Size Length A(m) Elevation B(m) *Additional

(Diameter:Ø)refrigerant(g/m)

Outdoor unit

Indoor unit

Outdoor unit

Indoor unit

Oil trap

If piping length is more than 5m

Outdoor unit

Indoor unit

CAUTION:

•Rated performance for refrigerant line length of:7.5m

•Capacity is based on standard length and maximum allowance length is on the

basis of reliability.

•Improper refrigerant charge may result in abnormal cycle.

•Oil trap should be installed every 10 meters.

8Cassette type Air Conditioner

•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.

CAUTION:

•

This air-conditioner uses a drain pump.

•Horizontly install the unit using a

level gauge.

•

During the installation, care should be

taken not to damage electric wires.

•Thoroughly study the following installation locations:

1. In such places as restaurants and kitchens, considerable amount of oil steam and flour

adhere to the turbo fan, the fin of the heat exchanger and the drain pump, resulting in heat

exchange reduction, spraying, dispersing of water drops, drain pump malfunction, 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 oily 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 opening dimensions and hanging bolt location

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

Ceiling board

Level gauge

Ceiling

Use the ventilation fan

for smoke-collecting

hood with sufficient

capacity.

Cooking table

Air conditioner

Take enough

distance

Unit:mm

840 Unit size

672 (Hanging bolt) 101.5101.5

875 (Ceiling opening)

785 (Hanging bolt) 45

Ceiling opening dimensions and hanging bolt location

Installation Manual 9

ENGLISH

Wall

5~7mm

Indoor Outdoor

Set screw of

paper model (4 pieces)

Paper model

for installation

Ceiling board

150mm

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

The Indoor Unit Installation

•The following parts is option.

Hanging Bolt - W 3/8 or M10

Nut - W 3/8 or M10

Spring Washer - M10

Plate Washer - M10

CAUTION:

Tighten the nut and bolt

to prevent unit falling.

•Drill the piping hole on the wall slightly tilted to the

outdoor side using a Ø70 hole-core drill.

•Although the room temperature sensor is in the indoor unit, the remote controller should

be installed in such places away from direct sunlight and high humidity.

Installation of the remote controller

•Select places that are not splashed with water.

•Select control position after receiving customer approval.

•The room temperature sensor is built in the indoor unit.

•This remote controller equipped with liquid crystal display. If this position is higher or lower,

display is difficult to see.(The standard height is 1.2 ~ 1.5m high)

Routing of the remote controller cord

•Keep the remote controller cord away from the refrigerant piping and the drain piping.

•To protect the remote controller cord from electrical noise, place the cord at least 5cm away

from other power cables (audio equipment, television set, etc.)

•If the remote controller cord is secured to the wall, provide a trap at the top of the cord to

prevent water droplets from running.

The Indoor Unit Installation

Remote Controller Installation

10 Cassette type Air Conditioner

Wired Remote Control Installation

Remote Control Preparation

Remote control

box body

Cord clamp

(accessory)

Lever carefully

the box open

using a screw

driver, etc.

Front case

The lower part

Face of wall

Under plate

Screw (accessory)

Remote Controller Installation

HOWTO MOUNT ONTO A WALL

HOW TO INSERT BATTERIES

Remove the battery cover from the remote

controller.

•Slide the cover according to the arrow

direction.

Insert the two batteries.

•Be sure that the (+) and (-) directions are

correct.

•Be sure that both batteries are new.

Re-attach the cover.

•Slide it back into position.

•Fix the under plate on the wall

•Separate the under plate from Remote control box.

•Fix the cord clamps on the wall by

ø3 tapping screws (accessory).

•Fix the remote control cord.

DISASSEMBLING

ELECTRICAL WIRING

Wire and make sure that terminal

numbers are matched on unit side and

remote controller side.

The maximum length of the cord is 100m.

If the length of the cord exceeds 50m,

use a wire size greater than 0.5mm2.

Remote controller

(Main board)

CN REMO

•Do not use rechargeable batteries,

such batteries differ from standard

dry cells in shape, dimensions, and

performance.

•Romove the batteries from the

remote controller if the air

conditioner is not going to be used

for some long time.

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