LG LB-C186HSA2 Manuale utente

LG Ceiling Duct-Type

Air Conditioner

INSTALLATION MANUAL

MODELS: LB-C186HSA2

LB-C246HSA2

LB-C306GTA2

LB-C366GTA2/3

LB-C428GTA2

LB-C488RTA0

LB-C608RTA0

IMPORTANT

• Please read this installation manual completely before

installing the product.

• When the power cord is damaged, replacement work shall

be performed by authorized personnel only.

• 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.

2Ceiling Duct Type Air Conditioner

Ceiling Duct Type Air Conditioner Installation Manual

TABLE OF CONTENTS

Safety Precautions..............3

Introduction .........................6

Installation of Indoor,

Outdoor Unit ........................7

Connecting Pipes to the

Indoor Unit .........................17

Connecting Pipes to the

Outdoor Unit ......................19

Checking the Drainage .....19

Connecting Cables

between Indoor Unit and

Outdoor Unit ......................20

Air Purging of the

Connecting Pipes and the

Indoor Unit .........................23

Group Control....................24

Two Thermistor system ....24

E.S.P.(External Static

Pressure) Setting ..............25

How to Set E.S.P? .............26

External Static Pressure &

air Flow...............................27

Auto Function Setting.......27

Checking the

Power Cord ........................28

Installation

Requirements Required Parts Required Tools

•

Four Type “A” screws

•

Connecting cable

•

Level

•

Screw driver

•

Electric drill

•

Hole core drill (ø70mm)

•

Pipes: Gas side .....5/8", 3/4"

Liquid side .............1/4", 3/8", 1/2"

•

Insulated drain hose

•

Insulation materials

•

Flaring Tools set

•

Additional Drain hose

(Inner Dia...............25mm)

•

Screw driver

•

Hexagonal Wrench (4mm/5mm)

•

Gas-leak Detector

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.

Be sure not to do.

Be sure to follow the instruction.

WARNING

■Installation

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.

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.

Safety Precautions

Installation Manual 3

ENGLISH

Safety Precautions

■Operation

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.

Gasolin

4Ceiling Duct Type Air Conditioner

Safety Precautions

■Installation

CAUTION

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.

90°

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.

Safety Precautions

Installation Manual 5

ENGLISH

6Ceiling Duct Type Air Conditioner

Installation Parts Provided

Air filters

Air outlet vents

Air intake vents

Remote Controller

(Rear) (Side)

Air intake

vents

Air outlet vents

Piping

Drain hose

Connecting wire

Control cover

Air Intake

(side, rear)

Connecting Wire

Drain Hose

Power Wire

Connection Tube

Air Outlet

Vents

This symbol alerts you to the risk of electric shock.

This symbol alerts you to hazards that could cause harm to the

air conditioner.

This symbol indicates special notes.

NOTICE

Introduction

Symbols Used in this Manual

Features

Installation Manual 7

ENGLISH

Installation of Indoor, Outdoor Unit

Indoor unit

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

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

600600

Top view

(unit: mm)

Front view

Front

Inspection hole

(600X600)

Control box

1000

More than

30cm

More than

30cm

More than

70cm

Sunroof

Fence or

obstacles

More than

90cm

More than 90cm

More than 120cm

More than 90cm

More than

90cm

✽

Fence or

obstacles

Fence or

obstacles

Fence or

obstacles

8Ceiling Duct Type Air Conditioner

Installation of Indoor, Outdoor Unit

Piping length and the elevation

Outdoor unit

Indoor unit

Outdoor unit

Indoor unit

Oil trap

Outdoor unit

Indoor unit

If piping length is more than 5m

Capacity

Gas

5/8"

3/4"

Liquid

1/4"

3/8"

1/2"

Elevation B(m)

Length A(m)

*Additional

refrigerant

(g/m)

Pipe Size

(Diameter: Ø)

Standard

7.5

Standard

Max.

18K BTU/h

24K BTU/h

30K BTU/h

36K BTU/h

LB-C366GTA3

42K BTU/h

48K BTU/h

60K BTU/h

CAUTION:

•If 48k Model is installed at a distance of 15m, 450g of refrigerant

should be added (15-7.5) x 60g = 450g

•Capacity is based on standard length and maximun allowance length

is on the basis of reliability.

•Improper refrigerant charge may result in abnormal cycle.

•Oil trap should be installed every 10 meters.

Installation Manual 9

ENGLISH

Installation of Indoor, Outdoor Unit

Indoor 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.

•Apply a filter Accessory at air return hole.

•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 support 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

Drainage hole

1-3 mm D

(G)

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

CASE 2

POSITION OF CONSOLE BOLT

(Unit:mm)

18K BTU/h 948 880 355 45.5 450 30 87 750 163

24K BTU/h

30K BTU/h

36K BTU/h 1248 1180 355 45.5 450 30 87 830 186

42K BTU/h

48K BTU/h 1292 1230 477 56 590 30 120 1006 294

60K BTU/h

Dimension

Capacity

ABCDE F(G)HI

10 Ceiling Duct Type Air Conditioner

Installation of Indoor, Outdoor Unit

•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

suspension 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.

CAUTION:

Tighten the nut and bolt to

prevent unit falling.

1 Set anchor

Old building New building

2 Plate washer

3 Spring washer

4 Nut

5 Suspension

bolts

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