LG ARNU09GCEA4 INSTALLATION MANUAL
www.lg.com
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.
Floor Standing, Concealed Floor Standing
Original instruction
INSTALLATION MANUAL
AIR
CONDITIONER
P/NO : MFL67142714
ENGLISH
ESPAÑOL
2 Indoor Unit
Floor Standing Concealed Floor Standing Type Indoor Unit Installation Manual
TABLE OF CONTENTS
o Four type "A" screws
o Connecting cable
o Pipes: Gas side
Liquid side
(Refer to Product
Data)
o Insulation materials
o Additional drain pipe
o Level gauge
o Screw driver
o Electric drill
o Hole core drill
o Flaring tool set
o Specified torque wrenches
(different depending on model No.)
o Spanner.......Half union
o A glass of water
o Screw driver
o Hexagonal wrench
o Gas-leak detector
o Vacuum pump
o Gauge manifold
o Owner's manual
o Thermometer
Features...................................3
Safety Precautions.................4
Installation
Selection the best location....9
How to connect wirings .......11
Wiring Connection ...............11
Drain piping work ................12
Dip Switch Setting ...............14
Group Control Setting .........15
Model Designation ..............20
Airborne Noise Emission ....20
Limiting concentration .........20
Installation Requirements
Required Parts Required Tools
Installation Manual 3
Feature
ENGLISH
Features
Air Inlet
Air filter
(At Air Inlet)
Remote Controller
Air Outlet
Control panel
Control panel
Air Filter
Air Inlet
Remote Controller
TEMP
[CEA/CFA Type]
[CEU/CFU Type]
Safety Precautions
4 Indoor Unit
Safety Precautions
To prevent injury to the user or other people and property damage, the following instructions must be
followed.
n Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classi-
fied by the following indications.
n 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 to properties only.
Be sure not to do.
Be sure to follow the instruction.
WARNING
n 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
ENGLISH
Do not modify or extend
the power cable.
• There is risk of fire or
electric shock.
Do not install, remove,
or re-install the unit by
yourself (customer).
• There is risk of fire, electric shock, explosion, or
injury.
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.
Take care to ensure that
power cable could not
be pulled out or damaged during operation.
• There is risk of fire or
electric shock.
Do not place anything
on the power cable.
• There is risk of fire or
electric shock.
n Operation
Do not turn on the breaker or power
under condition that front panel, cabinet, top cover, control box cover are
removed or opened.
• Otherwise, it may cause fire, electric
shock, explosion or death.
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
Safety Precautions
6 Indoor Unit
Do not allow water to
run into electric parts.
• It may cause There is risk
of fire, failure of the product, or electric shock.
Do not store or use flammable gas or combustibles near the
product.
• There is risk of fire or failure of product.
Do not use the product
in a tightly closed space
for a long time.
• Oxygen deficiency could
occur.
When flammable gas
leaks, turn off the gas
and open a window for
ventilation before turn
the product on.
• Do not use the telephone
or turn switches on or off.
There is risk of explosion
or fire.
If strange sounds, or
small or smoke comes
from product. Turn the
breaker off or disconnect the power supply
cable.
• There is risk of electric
shock or fire.
Stop operation and
close the window in
storm or hurricane.
If possible, remove the
product from the window before the hurricane arrives.
• There is risk of property
damage, failure of product, or electric shock.
Do not open the inlet
grill of the product during operation. (Do not
touch the electrostatic
filter, if the unit is so
equipped.)
• There is risk of physical
injury, electric shock, or
product failure.
When the product is
soaked (flooded or submerged), contact an Authorized Service Center.
• There is risk of fire or
electric shock.
Be cautious that water
could not enter the product.
• There is risk of fire, electric shock, or product
damage.
Ventilate the product from time to time
when operating it together with a
stove, etc.
• There is risk of fire or electric shock.
Turn the main power off when cleaning or maintaining the product.
• There is risk of electric shock.
Do not plug or unplug
the power supply plug
during operation.
• There is risk of fire or
electric shock.
Do not touch(operate)
the product with wet
hands.
• There is risk of fire or
electrical shock.
Do not place a heater or
other appliances near
the power cable.
• There is risk of fire and
electric shock.
Installation Manual 7
Safety Precautions
ENGLISH
When the product is not be used for a
long time, disconnect the power supply plug or turn off the breaker.
• There is risk of product damage or failure, or unintended operation.
Take care to ensure that nobody could
step on or fall onto the outdoor unit.
• This could result in personal injury and
product damage.
CAUTION
n Installation
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.
n Operation
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.
Do not expose the skin
directly to cool air for
long periods of time.
(Don't sit in the draft.)
• This could harm to your
health.
Do not use the product
for special purposes,
such as preserving
foods, works of art, etc.
It is a consumer air conditioner, not a precision
refrigeration system.
• There is risk of damage or
loss of property.
Do not block the inlet or
outlet of air flow.
• It may cause product failure.
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