LG LRNN TE Series User manual

System

Heat Pump Indoor Unit

INSTALLATION MANUAL

MODELS: LRNN, LRNV-TE/TD Series

Type: Ceiling Mounted Cassette - 4Way

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.

2Indoor Unit

Ceiling Mounted Cassette - 4Way 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 location7

Ceiling dimension and hang-

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

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

Installation of Deco ration

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

Installation of Remote

Control..................................13

Drain Pipe Work...................14

Installation of Drain Pump...16

Optional Operation..............18

Installation Requirements Required Parts Required Tools

Installation Manual 3

Installation Parts

Anti-bacteria filter

Air

Intake

Air Outlet

Installation Parts

Name

Quantity

Shape for gas pipe

for liquid pipe

Clamp metal

1 EA

Insulation for

fitting

1 SET

Drain hose

1 EA

Clamp

8 EA

Washer for

hanging backet

8 EA

(Other)

• 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 under-

rated circuit breaker. Use this

appliance on a dedicated circuit.

•Thereisriskoffireorelectricshock.

For electrical work, contact the

dealer, seller, a qualified electri-

cian, or an Authorized Service

Center.

• Do not disassemble or repair the

product. There is risk of fire or elec-

tric shock.

Always ground the product.

•Thereisriskoffireorelectricshock.

Install the panel and the cover

of control box securely.

•Thereisriskoffireorelectricshock.

Always install a dedicated cir-

cuit and breaker.

• Improper wiring or installation may

cause fire or electric shock

Use the correctly rated breaker

or fuse.

•Thereisriskoffireorelectricshock.

Installation Manual 5

Safety Precautions

■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

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 condi-

tioner could fall with it, causing prop-

erty 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

6Indoor Unit

Safety Precautions

Always check for gas (refriger-

ant) 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 prop-

erly.

• 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 out-

door 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 con-

denser and evaporator fins, could

cause product malfunction or inefficient

operation.

90˚

■Installation

Installation Manual 7

Installation

•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 Ceiling Board

30 or more

Above 250

400 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

Unit:mm

570 Unit size

672 (Hanging bolt)

7575

600 (Ceiling opening)

521(Hanging bolt) 39.5

39.5

CRNN126TEA0, CRNN186TEA0

Ceiling board

Unit:mm

840 Unit size

672 (Hanging bolt)

101.5101.5

875 (Ceiling opening)

785(Hanging bolt) 45

TD Series

•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

Set screw of

paper pattern (4 pieces)

Paper pattern

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 pattern.

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 following parts are local purchasing.

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 from

falling off.

[Air inlet side view]

Control box cover

Indoor

power cord

Remote

control cord

Control box cover

fitting screw(2 units)

Terminal Block in Indoor

1(L) 2(N) 3 4

INDOOR POWER INPUT

Terminal Block in Outdoor

ABC D Vcc

•Open the control box cover and connect the remote control cord and Indoor power wires.

Wiring Connection

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

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).

Decoration panel fixing screws

(hexagon M5 screws)

Temporally fitting at 2 places

(Tightening about 10mm)

Control box cover

Piping side

Inlet GrilleInlet GrilleInlet Grille

Inlet GrilleInlet Grille

Louver motor

Decoration panel fixing screws

(Hexagon M5 screw)

Air conditioner unit

Decoration panel

Key holes Display

Lead wire for

louver motor and

display

The decoration panel has its installation

direction. Before installing the decoration panel,

always remove the paper template.

Air conditioner

unit

Ceiling

board

Decoration panel Decoration

panel

Fit the insulator (this part) and

be careful for cool air leakage

Good example

Air

Cool air leakage

(no good)

Bad example

Ceiling

board

Air conditioner unit

Installation of Decoration Panel

CAUTION : Install

certainly the deco-

ration panel.

Cool air leakage causes

sweating.

Water drops fall.

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