LG UU09W INSTALLATION INSTRUCTIONS

INSTALLATION MANUAL

AIR
CONDITIONER

www.lg.com

High Efficiency Inverter

Original instruction

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.
Ɠ This product contains Fluorinated Greenhouse Gases. (R410A)

[

Representative

] LG Electronics Inc. EU Representative : LG Electronics European Shared

Service Center B.V. Krijgsman 1, 1186 DM Amstelveen, The Netherlands

[Manufacturer] LG Electronics Inc. Changwon 2nd factory 84, Wanam-ro, Seongsan-gu,

Changwon-si, Gyeongsangnam-do, KOREA

P/NO : MFL67855401

ENGLISH

ITALIANO ESPAÑOL

FRANÇAIS

DEUTSCH

ΕΛΛΗΝΙΚΆ

ČEŠTINA

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POLSKI

LIMBA ROMÂNĂ

Air Conditioner Installation Manual

TABLE OF CONTENTS

Installation

Requirements

Safety Precautions .....3

Installation of Indoor,

Outdoor unit................7

The indoor unit

installation.................10

Remote controller

installation.................25

Wiring connection ....29

Connecting Pipes to

the Indoor Unit ..........31

Installation to

decorative panel .......33

Indoor unit drain

piping .........................34

Test running ..............41

Optional operation....43

Required Parts Required Tools

•

•

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

2

Safety Precautions

Safety Precautions

To prevent the injury of the user or other people and property damage, the following instructions
must be followed.

n Be sure to read before installing the air conditioner.
n Be sure to observe the cautions specified here as they include important items related to safety.
n Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is

classified by the following indications.

This symbol indicates the possibility of death or serious injury.

This symbol indicates the possibility of injury or damage to properties only.

n The meanings of the symbols used in this manual are as shown below.

Be sure not to do.

Be sure to follow the instruction.

n Installation

Always perform
grounding.

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

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

ENGLISH

• Otherwise, it may cause

• Otherwise, it may cause

electrical shock.

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

• If the electrical part

• No installation may
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.

a fire or electrical shock.

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

cause a fire and
electrical shock.

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

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

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

Installation Manual 3

Safety Precautions

Ensure that an
installation frame of the
outdoor unit is not

Do not disassemble or
repair the product

randomly.
damaged due to use
for a long time.

• It may cause injury or an
accident.

• It will cause a fire or
electrical shock.

Use caution when unpacking and
installing.

• Sharp edges may cause injury.

n Operation

Do not share the outlet
with other appliances.

Do not use the
damaged power cord.

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

• Otherwise, it may result
in personal injury.

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.

Do not modify or
extend the power cord
randomly.

• It will cause an electric

• Otherwise, it may cause
shock or a fire due to
heat generation.

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

• Otherwise, it may cause

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

4

• Otherwise, it may cause

a fire or electrical shock.

Unplug the unit if

a fire or electrical shock.

Keep the flames away.
strange sounds, smell,
or smoke comes from it.

• Otherwise, it may cause

electrical shock or a fire.

a fire.

Safety Precautions

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

• Otherwise, it may cause

a fire or electrical shock.

Do not allow water to
run into electrical
parts.

• Otherwise, it may cause

• It may cause electric
the failure of machine or
electrical shock.

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

• It may cause an injury

• Otherwise, it may cause
through dropping of the
unit or falling down.

Do not use the power
cord near the heating
tools.

a fire and electrical
shock.

Hold the plug by the
head when taking it
out.

shock and damage.

Do not place a heavy
object on the power
cord.

a fire or electrical shock.

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

• Otherwise, it may
electrical shock and
failure.

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

• They are sharp and may
cause injury.

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

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

ENGLISH

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

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

Installation Manual 5

Safety Precautions

n Installation

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

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
water leakage.

• Otherwise, it may cause
dispute with the
neighbors.

Keep level parallel in installing the
product.

• Otherwise, it may cause vibration or
water leakage.

n Operation

Avoid excessive
cooling and perform
ventilation sometimes.

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

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

• Otherwise, it may cause
the failure of product.

Please install safely at a place that
can sufficiently endure the weight of
the product.

• If the strength is not sufficient, the
product may fall and cause injury.

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

• Otherwise, it may do
harm to your health.

• The appearance of the
air conditioner may

• Otherwise, it may
damage your properties.

deteriorate, change
color, or develop surface
flaws.

Do not place obstacles around the flow inlet or outlet.

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

6

Installation of Indoor, Outdoor Unit

Unit:cm

Ceiling

Ceiling Board

Ceiling Board

30 or more

Above 250

330 or less

100

or more

50 or
more

50 or
more

30 or less

Floor

Installation of Indoor, Outdoor Unit

You need to select adequate installation location considering the following conditions, and make
sure to acquire the consent of the user.

Selection of the best location

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.

ENGLISH

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
shown 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

Top view

(unit: mm)

Front view

Inspection hole

(600X600)

Control box

600600

1000

Front

H

Installation Manual 7

Installation of Indoor, Outdoor Unit

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
20cm.

• 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.

More than

20cm

More than eye-level

(Ceiling installation)

More than

20cm

(Floor/Wall installation)

More than 20cm

More than 20cm

More than

R

More than

R

More than 20cm

More than 5cm

20cm

20cm

More than 5cm

More than 20cm

2. Outdoor unit

•

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.

• Ensure that the spaces indicated by arrows around front, back and side of the unit.

• Do not place animals and plants in the path of the warm air.

•

Take the air conditioner weight into account and
select a place where noise and vibration are
minimum.

•

Select a place so that the warm air and noise
from the air conditioner do not disturb neighbors.

• Place that can sufficiently endure the weight
and vibration of the outdoor unit and where
even installation is possible.

• Place that has no direct influence of snow or rain

• Place with no danger of snowfall or icicle drop

• Place without weak floor or base such as
decrepit part of the building or with a lot of snow
accumulation

8

More than
30cm

More than
70cm

More than 60cm

More than 30cm

More
than 60cm

Installation of Indoor, Outdoor Unit

Outdoor unit

Indoor unit

A trap is not necessary when the
outdoor unit is installed in a higher
position than the indoor unit.

3. Piping length and the elevation

MODEL

AUUW096D

[UU09W ULD]

AUUW126D

[UU12W ULD]

AUUW186D

[UU18W UED]

AUUW186D1

[UU18W UED1]

Pipe Size (Diameter:Ø) Length A(m) Elevation B(m)

Gas Liquid Standard Max. Standard Max.

3/8"(9.52mm) 1/4"(6.35mm) 7.5 15 5 10 20

3/8"(9.52mm) 1/4"(6.35mm) 7.5 15 5 10 20

1/2"(12.7mm) 1/4"(6.35mm) 7.5 40 5 30 20

1/2"(12.7mm) 1/4"(6.35mm) 5.0 40 5 30 20

ENGLISH

*Additional

refrigerant

(g/m)

CAUTION:

• Rated performance for refrigerant line length of:7.5m (AUUW096D, AUUW126D,
AUUW186D) / 5.0m (AUUW186D1)

• Capacity is based on standard length and maximum allowance length is on the
basis of reliability.

• Improper refrigerant charge may result in abnormal cycle.

Installation Manual 9

The indoor unit installation

The indoor unit installation

1. Cassette type

CAUTION :

Ceiling

Level gauge

• 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.

Ceiling board

• 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.

NOTICE

523

TQ/TR Series

585~660

517

570

570

319

461

517

Unit: mm

585~660

• 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

Air conditioner

cooking oil or iron powder is
generated.

3. Avoid places where
inflammable gas is generated.

4. Avoid place where noxious gas is
generated.

Take enough
distance

Cooking table

Use the ventilation fan
for smoke-collecting
hood with sufficient
capacity.

5. Avoid places near high frequency
generators.

10

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 following parts is option.

① Hanging Bolt - W 3/8 or M10
② Nut - W 3/8 or M10
③ Spring Washer - M10
④ Plate Washer - M10

The indoor unit installation

ENGLISH

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.

Installation Manual 11

The Indoor Unit Installation

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

CD

(G)

H

I

EF

1~3mm

2. Duct type

CASE 1

POSITION OF SUSPENSION BOLT

• Apply a joint-canvas between the unit and
duct to absorb unnecessary vibration.

• Apply a filter Accessory at air return hole.

(Unit:mm)

Dimension

Capacity

18k Btu/h 932 880 355 45.5 450 30 87 750 163

ABCDEF(G)HI

CASE 2

• Install the unit leaning to a drainage hole
side as a figure for easy water drainage.

POSITION OF CONSOLE BOLT

• 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.

12

The Indoor Unit 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 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.

Old building New building

1 Set anchor
2 Plate washer
3 Spring washer
4 Nut

5 Suspension
bolts

• Local supply

① Set anchor
② Plate washer - M10
③ Spring washer - M10
④ Nut - W3/8 or M10
⑤ Suspension bolt - W3/8 or M10

ENGLISH

Installation Manual 13

The Indoor Unit Installation

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 declined to the drain hose connected when finished

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.

• 10mm 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.

Unit

Make sure to be closed.

• Upward routing not
allowed

installation.

Thermal insulator

(Local supply)

Drainage pipe
(Local supply)

Drainage hole

CORRECT

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

14

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

C

A

B

U-Trap

The Indoor Unit Installation

3. Convertible type(18k Btu/h)

n

Before Installing, prepare Installation Plates

• 'Installation Plates' are attached at the bottom
of indoor unit.
Detach them by removing each 3 screws at
both sides.

• Detach 'Side Plate (R,L)' by removing each 2
screws on both sides.

• Pull the upper right and left side of 'Inlet Grille'
to the front, and it will stop at slightly tilted
position.

• Unhook the 'Inlet hanger' from the 'Hanger
screw' on the both left and right side.

• Detach the 'Inlet Grille' from the Indoor Unit.

1) Installation on the ceiling

• Measure and mark the position for the
Suspension bolts and the piping hole.

• Drill the hole for anchor nut on the ceiling.

※ Before secure the Installation Plates,

select the bent direction of the
Installion Plate to the inside or the
outside according to the installation
circumstances.

Install Plate

Inlet Grille

1)

1076

Suspension

bolt

Center-line for the

ENGLISH

Side Plate

Inlet hanger

Hanger

screw

265

piping hole

• Drill the piping hole on the wall slightly tilted
to the outdoor side using a ø70 hole-core
drill.

2)

1236

Indoor Outdoor

WALL

265

5~7mm

Installation Manual 15