LG AUUH186C, AUUH306C, AUUH246C INSTALLATION MANUAL

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

2 Ceiling 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 .....1/2", 5/8", 3/4"

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

•

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.

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.

WARNING

CAUTION

Safety Precautions

4 Ceiling 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.

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.

90°

6 Ceiling 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

8 Ceiling 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

(Local supply)

X 4

M10 Nut

M10 SP. washer

M10 washer

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

+ 18 hidden pages