LG MULTI V LRNN-BE Series Bedienungsanleitung

System

Heat Pump Indoor Unit

INSTALLATION MANUAL

MODELS: LRNN, LRNV-BE/BG/BH Series

Type: Ceiling Concealed Duct - High Static

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 Concealed Duct - Low Static 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

❏Twotype"B"screws

❏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

❏A glass of water

❏Screw driver

❏Hexagonal wrench

❏Gas-leak detector

❏Vacuum pump

❏Gauge manifold

❏Owner's manual

❏Thermometer

Installation Parts Provided....3

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

Installation

Selection the best location ....7

Ceiling opening dimension

and hanging bolt location ......8

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

Check the Drainage.............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 Provided

Air filters

Remote Controller

Air intake vents

Air outlet vents

Installation

Name

Quantity

Shape for gas pipe

for liquid pipe

Clamp metal

1 EA

Insulation for

fitting

1 set 1 set

Drain hose

1 EA

(Other)

Clamp

6 EA

Screws for

duct flanges

• Owner's manual

• Installation manual

• Washers(8 pcs.)

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

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.(Suitable dimension “H”is necessary to get a slope to drain as

figure.)

•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.

Top view

(unit: mm)

Front view

600600

Front

Inspection hole

(600X600)

Control box

1000

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

■Installation 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 sup-

port the weight of the unit.

•A place where the unit can withstand its vibration.

•A place where service can be easily performed.

CASE 1

POSITION OF SUSPENSION BOLT

CASE 2

POSITION OF CONSOLE BOLT

(Unit:mm)

Drainage hole

M10 Nut

M10 SP. washer

M10 washer

X 4

X 4 (Local

supply)

X 4

M10 Nut

M10 SP. washer

M10 washer

X 4

X 4 (Local

supply)

X 4

1-3 mm D

(G)

•Throughly study the following installation locations:

1. In such places as restaurants and kitchens, considerable amount of oil steam and flour adhere to the fan, the fin of the

heat exchanger, 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

ABCDEF(G)H

186/246BH 932 882 355 45.5 450 30 87 750

286/366/426BG

1232 1182 355 45.5 450 30 87 830

426/486BE 1292 1230 570.5 54 680 30 120 1006

Dimension

Capacity

[kW(Btu/h)]

Ceiling dimension and hanging bolt location

Installation Manual 9

Installation

•Select and mark the position for fixing bolts.

•Drill the hole for set anchor on the face of ceiling.

•Insert the set anchor and washer onto the suspen-

sion bolts for locking the suspension bolts on the

ceiling.

•

Mount the suspension bolts to the set anchor firmly.

•Secure the installation plates onto the suspension

bolts (adjust level roughly) using nuts, washers

and spring washers.

1 Set anchor

Old building New building

2 Plate washer

3 Spring washer

4 Nut

5 Suspension

bolts

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

Clamping of cables

1) Arrange 2 power cables on the control panel.

2) First, fasten the steel clamp with a screw to the inner boss of control panel.

3) For the cooling model, fix the other side of the clamp with a screw strongly. For the heat pump model, put the

0.75mm2cable(thinner cable) on the clamp and tighten it with a plastic clamp to the other boss of the control

panel.

4) In Australia, the length of power supply cord measured from the entry of the power supply cord to the middle

live pin on the power plug should be over 1.8m.

Terminal Block in Indoor

1(L) 2(N) 3 4

INDOOR POWER INPUT

Terminal Block in Outdoor

ABC D Vcc

Wiring Connection

CAUTION : Tighten the nut and bolt

to prevent unit falling.

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

10 Indoor Unit

Installation

All thermal insulation must comply with local requirement.

THERMAL INSULATION

Make sure that there is no clearance here.

Overlap with thermal

insulator for piping.

Thermal insulator for refrigerant pipe

(Local supply) Thermal insulator for

piping(Local supply)

Hose crip for thermal insulator(Local supply)

Union for liquid pipe

Refrigerant pipe and thermal

insulator(Local supply)

Union for gas pipe

Thermal insulator for refrigerant pipe

(Local supply)

Hose crip for thermal insulator

(Local supply)

1. Remove the Air Filter.

2. Check the drainage.

•Spray one or two glasses of water upon the

evaporator.

•Ensure that water flows drain hose of indoor

unit without any leakage.

Checking the Drainage

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