LG AUUH306C Bedienungsanleitung

LG Ceiling Duct-Type

Air Conditioner

INSTALLATION MANUAL

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.

ENGLISH ESPAÑOL

2Ceiling Duct Type Air Conditioner

Ceiling Duct Type Air Conditioner Installation Manual

TABLE OF CONTENTS

Safety precautions .....3

Installation of Indoor,

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

Connecting Pipes to the

Indoor Unit ................15

Connecting Pipes to the

Outdoor Unit .............17

Checking the Drainage

....................................17

Connecting Cables

between Indoor Unit and

Outdoor Unit .............18

Air Purging of the

Connecting Pipes and the

Indoor Unit ...............21

Group Control ...........22

Two Thermistor

System.......................22

E.S.P (External Static

Pressure) Setting......23

How to set E.S.P?. ....24

Installation guide at the

seaside ......................25

•

Four Type “A” screws

•

Connecting cable

•

Pipes: Gas side .....1

Liquid side .............

•

Insulated drain hose

•

Insulation materials

•

Additional Drain hose

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

•

Level

•

Screw driver

•

Electric drill

•

Hole core drill (ø70 mm)

•

Flaring Tools set

•

Screw driver

•

Hexagonal Wrench

(4 mm/5 mm)

•

Gas-leak Detector

Installation

Requirements Required Parts Required Tools

Safety Precautions

Installation Manual 3

ENGLISH

Safety Precautions

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

4Ceiling Duct Type Air Conditioner

■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

Safety Precautions

Installation Manual 5

ENGLISH

■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.

6Ceiling Duct Type Air Conditioner

Installation of Indoor, Outdoor Unit

1. Selection of the best location

1) Indoor unit

Select location

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

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.

More than

300 mm

More than

300 mm

More than

700 mm

Sunroof

Fence or

obstacles

600600

Top view

(unit: mm)

Front view

Front

Inspection hole

(600X600)

Control box

1000

Installation of Indoor, Outdoor Unit

Installation Manual 7

ENGLISH

3) Piping length and the elevation

Outdoor unit

Indoor unit

Outdoor unit

Indoor unit

Oil trap

Outdoor unit

Indoor unit

CAUTION:

•Rated performance for refrigerant line length of:7.5 m

•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.

Gas Liquid Standard Max. Standard Max.

7.5 50 5 30 35

1/4 "(6.35 mm)

7.5 50 5 30 35

1/2 "(12.7 mm)

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

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

Capacity

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

(Diameter:Ø)refrigerant(g/m)

18 kBtu/h

24 kBtu/h

30 kBtu/h

8Ceiling Duct Type Air Conditioner

Installation of Indoor, Outdoor Unit

2. 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

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

(G)

ABCDEF(G)HI

18 kBtu/h

24 kBtu/h

30 kBtu/h

36 kBtu/h

932 880 355 45.5 450 30 87 750 163

Dimension

Capacity

1232 1182 355 45.5 450 30 87 830 186

Installation Manual 9

ENGLISH

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.

1 Set anchor

Old building New building

2 Plate washer

3 Spring washer

4 Nut

5 Suspension

bolts

Tighten the nut and bolt to prevent

unit falling

CAUTION

•Local supply

Set anchor

Plate washer - M10

Spring washer - M10

Nut - W3/8 or M10

Suspension bolt - W3/8 or M10

10 Ceiling Duct Type Air Conditioner

Installation of Indoor, Outdoor Unit

Ceiling

CAUTION

1~3 mm

Drainage hole

U-Trap

A 70 mm

B 2C

C 2 x SP

SP = External Pressure

(mmAq)

Ex) External Pressure

= 10 mmAq

A 70 mm

B 40 mm

C 20 mm

Make sure to be closed.

Unit

Drainage pipe

(Local supply)

Thermal insulator

(Local supply)

Drainage hole

CAUTION FOR GRADIENT OF

UNIT AND DRAIN PIPING

Lay the drain hose with a downward

inclination so water will drain out.

Front of view

•Always lay the drain with downward

inclination (1/50 to 1/100).

Prevent any upward flow or reverse flow

in any part.

•5mm or thicker formed thermal insulator

shall always be provided for the drain

pipe.

•Install the P-Trap (or U-Trap) to prevent

a water leakage caused by the blocking

of intake air filter.

Applied U-Trap Dimension

1. Install declination of the indoor unit is very important for the drain of the duct type air

conditioner.

2. Minimum thickness of the insulation for the connecting pipe shall be 5 mm.

•The unit must be horizontal or declined to the drain hose connected when finished

installation.

CORRECT

INCORRECT

•Upward routing not

allowed

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