LG AUUH368D INSTALLATION MANUAL

P/NO : MFL40910608

www.lg.com

INSTALLATION MANUAL

AIR CONDITIONER

• 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 Air Conditioner

Air Conditioner Installation Manual

TABLE OF CONTENTS

Safety Precautions .....3

Installation of Indoor,

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

The indoor unit

installation...................9

Remote controller

installation.................24

Wiring connection ....25

Connecting Pipes to

the Indoor Unit..........27

Installation to

decorative panel .......29

Indoor unit drain

piping.........................30

Test running..............35

Optional operation....37

Installation guide at

seaside.......................42

•

Connecting cable

• Four Type "A" Screw

• Hanging Bolt (W 3/8 or M10 length 650mm)

• Pipes: Gas side

Liquid side

• Insulated drain hose

• Additional Drain hose Inner Dia

Cassette type.............32mm

Duct type....................25mm

• Additional drain pipe (Convertible type)

(Outer diameter .....15.5mm)

•

Level

•

Screw driver

•

Electric drill

•

Hole core drill (ø70mm)

• Flaring Tools set

• Torque Wrenches

• Hexagonal Wrench (4mm, 5mm)

• Gas-leak detector

•

Owner’s Manual

•

Thermometer

Installation

Requirements

Required Parts Required Tools

Safety Precautions

Installation Manual 3

ENGLISH

To prevent the injury of 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.

■ The meanings of the 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.

■ Installation

Be sure not to do.

Be sure to follow the instruction.

Safety Precautions

Always perform grounding.

• Otherwise, it may cause electrical shock.

Don’t use a power cord, a plug or a loose socket which is damaged.

• Otherwise, it may cause a fire or electrical shock.

For installation of the product, always contact the service center or a professional installation agency.

• Otherwise, it may cause a fire, electrical shock, explosion or injury.

Securely attach the electrical part cover to the indoor unit and the service panel to the outdoor unit.

• If the electrical part cover of the indoor unit and the service panel of the outdoor unit are not attached securely, it could result in a fire or electric shock due to dust, water, etc.

Always install an air leakage breaker and a dedicated switching board.

• No installation may cause a fire and electrical shock.

Do not keep or use flammable gases or combustibles near the air conditioner.

• Otherwise, it may cause a fire or the failure of product.

Ensure that an installation frame of the outdoor unit is not damaged due to use for a long time.

• It may cause injury or an accident.

Do not disassemble or repair the product randomly.

• It will cause a fire or electrical shock.

4 Air Conditioner

Safety Precautions

Do not install the product at a place that there is concern of falling down.

• Otherwise, it may result in personal injury.

Use caution when unpacking and installing.

• Sharp edges may cause injury.

Take the power plug out if necessary, holding the head of the plug and do not touch it with wet hands.

• Otherwise, it may cause a fire or electrical shock.

Do not use the power cord near the heating tools.

• Otherwise, it may cause a fire and electrical shock.

Do not open the suction inlet of the indoor/outdoor unit during operation.

• Otherwise, it may electrical shock and failure.

Do not allow water to run into electrical parts.

• Otherwise, it may cause the failure of machine or electrical shock.

Hold the plug by the head when taking it out.

• It may cause electric shock and damage.

Never touch the metal parts of the unit when removing the filter.

• They are sharp and may cause injury.

Do not share the outlet with other appliances.

• It will cause an electric shock or a fire due to heat generation.

Do not use the damaged power cord.

• Otherwise, it may cause a fire or electrical shock.

Do not modify or extend the power cord randomly.

• Otherwise, it may cause a fire or electrical shock.

Take care so that the power cord may not be pulled during operation.

• Otherwise, it may cause a fire or electrical shock.

Unplug the unit if strange sounds, smell, or smoke comes from it.

• Otherwise, it may cause electrical shock or a fire.

Keep the flames away.

• Otherwise, it may cause a fire.

Do not step on the indoor/outdoor unit and do not put anything on it.

• It may cause an injury through dropping of the unit or falling down.

Do not place a heavy object on the power cord.

• Otherwise, it may cause a fire or electrical shock.

When the product is submerged into water, always contact the service center.

• Otherwise, it may cause a fire or electrical shock.

Take care so that children may not step on the outdoor unit.

• Otherwise, children may be seriously injured due to falling down.

■ Operation

Use a vacuum pump or Inert (nitrogen) gas when doing leakage test or air purge. Do not compress air or Oxygen and Do not use Flammable gases. Otherwise, it may cause fire or explosion.

• There is the risk of death, injury, fire or explosion.

Installation Manual 5

ENGLISH

Safety Precautions

■ Installation

Install the drain hose to ensure that drain can be securely done.

• Otherwise, it may cause water leakage.

Install the product so that the noise or hot wind from the outdoor unit may not cause any damage to the neighbors.

• Otherwise, it may cause dispute with the neighbors.

Always inspect gas leakage after the installation and repair of product.

• Otherwise, it may cause the failure of product.

Keep level parallel in installing the product.

• Otherwise, it may cause vibration or water leakage.

Avoid excessive cooling and perform ventilation sometimes.

• Otherwise, it may do harm to your health.

Use a soft cloth to clean. Do not use wax, thinner, or a strong detergent.

• The appearance of the air conditioner may deteriorate, change color, or develop surface flaws.

Do not use an appliance for special purposes such as preserving animals vegetables, precision machine, or art articles.

• Otherwise, it may damage your properties.

Do not place obstacles around the flow inlet or outlet.

• Otherwise, it may cause the failure of appliance or an accident.

■ Operation

6 Air Conditioner

Installation of Indoor, Outdoor Unit

1. Indoor unit Cassette type

• There should not be any heat source or steam near the unit.

• There should not be any obstacles to prevent 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 keep the maintenance space.

Duct type

• 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

Selection of the best location

Unit:cm

Ceiling

Ceiling Board

30 or more

Above 250

330 or less

100

or more

50 or more

30 or less

Floor

Top view

(unit: mm)

Front view

Inspection hole

(600X600)

Control box

1000

Front

600600

Installation of Indoor, Outdoor Unit

Installation Manual 7

ENGLISH

Convertible type

• Do not have any heat or steam near the unit.

• Select a place where there are no obstacles in

front of the unit.

• Make sure that condensation drainage can be conveniently routed away.

• Do not install near a doorway.

• Ensure that the interval between a wall and

the left (or right) of the unit is more than 70cm.

• Use a stud finder to locate studs to prevent unnecessary damage to the wall.

• There should not be any heat source or steam

near the unit.

• There should not be any obstacles to prevent

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.

2. Outdoor unit

1. If an awning is built over the unit to prevent

direct sunlight or rain exposure, make sure that heat radiation from the condenser is not restricted.

2. Ensure that the spaces indicated by arrows

around front, back and side of the unit.

3. Do not place animals and plants in the path

of the warm air.

4. Take the air conditioner weight into account

and select a place where noise and vibration are minimum.

5. Select a place so that the warm air and noise

from the air conditioner do not disturb neighbors.

More than

70cm

More than

30cm

More than

70cm

More than

20cm

More than eye-level

More than

20cm

More than

20cm

More than

20cm

(Ceiling installation)

(Floor/Wall installation)

More than 30cm

More than 70cm

More than 60cm

More than 30cm

More than 60cm

8 Air Conditioner

Installation of Indoor, Outdoor Unit

3. Piping length and the elevation

Gas Liquid Standard Max. Standard Max

24k Btu/h

5/8"(15.88mm) 3/8"(9.52mm)

7.5 40 5 30 45

30k Btu/h

5/8"(15.88mm) 3/8"(9.52mm)

7.5 50 5 30 45

36k Btu/h

5/8"(15.88mm) 3/8"(9.52mm)

7.5 50 5 30 45

Capacity

Pipe Size

Length A(m) Elevation B(m)

*Additional

(Diameter:Ø)

refrigerant(g/m)

Outdoor unit

Indoor unit

Outdoor unit

Indoor unit

Oil trap

If piping length is more than 5m

Outdoor unit

Indoor unit

CAUTION:

• Rated performance for refrigerant line length of:7.5m

• 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.

Installation Manual 9

ENGLISH

The indoor unit installation

1. Cassette type

Level gauge

Ceiling

Unit:mm

570 Unit size

672 (Hanging bolt)

7575

600 (Ceiling opening)

521(Hanging bolt)

39.5

TE Series

Ceiling board

Unit:mm

TM/TN/TP Series

Unit:mm

840 Unit size

672 (Hanging bolt)

101.5101.5

875 (Ceiling opening)

785(Hanging bolt)

TH/TD Series

875(Ceiling opening)

787(Hanging bolt)

684

(Hanging bolt)

671

875

(Ceiling opening)

840 Unit size

• 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

10 Air Conditioner

Wall

5~7mm

Indoor Outdoor

Set screw of paper model (4 pieces)

Paper model 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 model

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 Indoor Unit Installation

• The following parts is option. 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 falling.

• Drill the piping hole on the wall slightly tilted to the outdoor side using a Ø 70 hole-core drill.

The Indoor Unit Installation

Installation Manual 11

ENGLISH

2. Duct type

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

A B

(G)

• 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)

ABCDEF(G)HI

30/

36k Btu/hr

1232 1182 355 45.5 450 30 87 830 186

24k Btu/h 932 880 355 45.5 450 30 87 750 163

Dimension

Capacity

12 Air Conditioner

The Indoor Unit Installation

CAUTION:

Tighten the nut and bolt top

revent unit falling.

• 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.

• Local supply Set anchor Plate washer - M10 Spring washer - M10 Nut - W3/8 or M10 Suspension bolt - W3/8 or M10

Old building New building

1 Set anchor 2 Plate washer 3 Spring washer 4 Nut

5 Suspension bolts

The Indoor Unit Installation

Installation Manual 13

ENGLISH

CAUTION

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 5mm.

Front of view

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

Ceiling

1~3mm

CORRECT

Drainage hole

CAUTION FOR GRADIENT OF UNIT AND DRAIN PIPING

• 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.

INCORRECT

Drainage hole

Lay the drain hose with a downward inclination so water will drain out.

Thermal insulator

(Local supply)

Unit

Make sure to be closed.

Drainage hole

Drainage pipe (Local supply)

CORRECT

• Install the P-Trap (or U-Trap) to prevent a water leakage caused by the blocking of intake air filter.

• Upward routing not allowed

INCORRECT

Applied U-Trap Dimension

A 70mm B 2C C 2 x SP SP = External Pressure

(mmAq)

Ex) External Pressure

= 10mmAq A 70mm B 40mm C 20mm

U-Trap

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