LG UU18WE INSTALLATION MANUAL
INSTALLATION MANUAL
AIR
CONDITIONER
www.lg.com
P/NO : MFL68907801
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.
[
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
Econo Inverter
Original instruction
ENGLISH
ESPAÑOL
Single A Air Conditioner Installation Manual
CONTENTS
Safety Precautions ..............................................................................................3
Installation of Outdoor Unit................................................................................7
Wiring Connection...............................................................................................8
Connecting Pipes ..............................................................................................11
Leakage test and Evacuation ...........................................................................14
Test running .......................................................................................................16
Self-diagnosis Function....................................................................................18
Installation Guide at the Seaside.....................................................................19
2
WARNING
CAUTION
WARNING
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
electrical shock.
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.
• Otherwise, it may cause
•
a fire or electrical shock.
Always install an air
leakage breaker and a
dedicated switching
board.
• No installation may
• Otherwise, it may cause
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.
a fire or the failure of
product.
Installation Manual 3
Safety Precautions
Ensure that an installation frame of the outdoor unit is not dam-
Do not disassemble or
repair the product ran-
domly.
aged due to use for a
long time.
• It may cause injury or an
accident.
Do not install the product at a place
that there is concern of falling down.
• Otherwise, it may result in personal
• It will cause a fire or
electrical shock.
Use caution when unpacking and
installing.
• Sharp edges may cause injury.
injury.
n Operation
Do not share the outlet with other appli-
Do not use the damaged power cord.
ances.
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
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 a fire or electrical shock.
4
• 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.
• Otherwise, it may
cause a fire or electrical shock.
Keep the flames away.
• Otherwise, it may
cause 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 a fire or electrical shock.
Do not allow water to
run into electrical
parts.
• Otherwise, it may
cause 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
through dropping of the
unit or falling down.
Do not use the power
cord near the heating
tools.
• Otherwise, it may
cause a fire and electrical shock.
Hold the plug by the
head when taking it
out.
• It may cause electric
shock and damage.
Do not place a heavy
object on the power
cord.
• Otherwise, it may
cause 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
CAUTION
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 Outdoor Unit
Sunroof
More than
700
More than
600
(Unit : mm)
ENGLISH
Installation of Outdoor Unit
You need to select adequate installation location considering the following conditions, and make
sure to acquire the consent of the user.
1. Installation Places
• 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
2. Piping length and the elevation
n Single Operation
Pipe Size
Model Capacity
UU18WE 5kW Ø12.7(1/2) Ø6.35(1/4) 7.5 25 5 15 20
UU24WE 7kW Ø15.88(5/8) Ø9.52(3/8) 7.5 30 5 15 40
mm(inch)
Gas Liquid Standard Max. Standard Max.
• 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
Sunroof
More than
300
Fence or
obstacles
Length A(m) Elevation B(m)
Sunroof
More than
300
Additional
refrigerant
(g/m)
If installed tube is shorter than 7.5 m, additional charging is not necessary.
Additional Refrigerant = (A -7.5) x Additional refrigerant (g)
Indoor unit
B
A
Outdoor unit
Indoor unit
Outdoor unit
A
B
Installation Manual 7
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