LG LSUH126RNA2 User manual

ENGLISH
LG
Room Air Conditioner
LG
MODELS : SQ/SR/ST Chassis
• Please read this owner's manual carefully and thoroughly
before installing and operating your room air conditioner.
• Please retain this owner's manual for future reference after
reading it thoroughly.
IMPORTANT
OWNER'S MANUAL
website http://www.lgservice.com

2Room Air Conditioner
Room Air Conditioner Owner Manual
TABLE OF CONTENTS
FOR YOUR RECORDS
Write the model and serial numbers here:
Model #
Serial #
You can find them on a label on the side of each unit.
Dealer's Name
Date Purchased
■Staple your receipt to this page in the event you need
it to prove date of purchase or for warranty issues.
READ THIS MANUAL
Inside you will find many helpful hints on how to use
and maintain your air conditioner properly. Just a little
preventive care on your part can save you a great deal
of time and money over the life of your air conditioner.
You'll find many answers to common problems in the
chart of troubleshooting tips. If you review our chart of
Troubleshooting Tips first, you may not need to call
for service at all.
PRECAUTION
•Contact the authorized service technician for
repair or maintenance of this unit.
• Contact the installer for installation of this unit.
• The air conditioner is not intended for use by
young children or invalids without supervision.
• Young children should be supervised to ensure
that they do not play with the air conditioner.
• When the power cord is to be replaced,
replacement work shall be performed by
authorized personnel only using only genuine
replacement parts.
• Installation work must be performed in
accordance with the National Electric Code by
qualified and authorized personnel only.
Safety Precautions.........................3
Prior to Operation ..........................9
Introduction ..................................10
Electrical Safety ...........................11
Operating Instructions.................12
Maintenance and Service ............24

Safety Precautions
Owner's Manual 3
ENGLISH
Safety Precautions
To prevent the injury of 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.
This symbol indicates the possibility of death or serious injury.
This symbol indicates the possibility of injury or damage to properties only.
■The meanings of the symbols used in this manual are as shown below.
Be sure not to do.
Be sure to follow the instruction.
■Installation
Do not use damaged power
cords, plugs, or a loose
socket.
• There is risk of fire or electric
shock.
For electrical work, contact
the dealer, seller, a qualified
electrician, or an Authorized
Service Center.
• There is risk of fire or electric
shock.
Always use the power plug
and socket with the ground
terminal.
• There is risk of electric shock.
Install the panel and the
cover of control box securely.
• There is risk of fire or electric
shock.
Do not modify or extend the
power cord.
• 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.

Safety Precautions
4Room Air Conditioner
Be cautious when unpacking
and installing the product.
• Shape edges could cause injury.
Be especially careful of the sharp
edges.
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 furnishings.
Take care to ensure that
power cords could not be
pulled out or damaged during
operation.
• There is risk of fire or electric
shock.
Do not place anything on the
power cord.
• There is risk of fire or electric
shock.
Do not turn the air-
conditioner ON or OFF by
plugging or unplugging the
power plug.
• There is risk of fire or electric
shock.
■Operation

Safety Precautions
Owner's Manual 5
ENGLISH
Use a dedicated outlet for this
appliance.
• There is risk of fire or electric
shock.
Grasp the plug to remove the
cord from the outlet. Do not
touch it with wet hands.
• There is risk of fire or electric
shock.
Do not place a heater or other
appliances near the power
cable.
• There is risk of fire, failure of the
product, and/or electric shock.
Do not allow water to run into
electric part.
• There is risk of fire, failure of the
product, and/or electric shock.
Do not store of use
flammable gas or
combustibles near the air
conditioner.
• 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.
Unplug the unit if strange
sounds odors, or smoke
comes from it.
• There is risk of fire, failure of the
product, and/or electric shock.
Stop operation and close the
window in storm or hurricane.
If possible, remove the air
conditioner from the window
before the hurricane arrives.
• There is risk of property damage,
failure of product, or electric
shock.
Wax
Thinner

Safety Precautions
6Room Air Conditioner
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.
■Installation
90˚
Unplug the appliance before
performing cleaning or
maintenance.
•There is risk of electric shock.
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.
•There could result in personal
injury and product damage.
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.
When the product is soaked
(flooded or submerged),
contact an Authorized
Service Center.
•There is risk of electrical shock.
Ventilate the room well when
using this appliance together
with a stove, etc.
•An oxygen shortage may occur.

Safety Precautions
Owner's Manual 7
ENGLISH
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 air
conditioner
•Avoid personal injury.
Do not install the product
where it will be exposed to
sea wind (salt spray) directly.
•It may cause corrosion in the
product. Corrosion, particularly on
the condenser and evaporator fins,
could cause product malfunction
or inefficient operation.
Do not direct airflow at room
occupants.(Don't sit in the
draft.)
•This could damage 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.
Use a soft cloth to clean. Do
not use harsh detergents,
solvents, etc.
•There is risk of fire, electric shock
or damage to the plastic parts of
the product.
Do not touch the metal parts
of the product when
removing the air filter. They
are very sharp!
•There is risk of personal injury.
Do not step on or put
anything on the product.
(outdoor unit)
•There is risk of personal injury and
failure of product.
■Operation

Safety Precautions
8Room Air Conditioner
Do not recharge or disassemble the batteries.
Do not dispose of batteries in a fire.
•They may burn or explode.
If the liquid from the batteries gets onto your
skin or clothes, wash it well with clean water.
Do not use the remote if the batteries have
leaked.
•The chemicals in batteries could cause burns or other
health hazards.
Always insert the filter
securely. Clean the filter
every two weeks or more
often if necessary.
•A dirty filter reduces the efficiency
of the air conditioner and could
cause product malfunction or
damage.
Do not insert hands or other
objects through the air inlet
or outlet while the air
conditioner is plugged in.
•There are sharp and moving parts
that could cause personal injury.
Do not drink the water
drained from the unit.
•It is not sanitary and could cause
serious health issues.
■Disuse
Use a firm stool or ladder when cleaning or
maintaining the air conditioner.
•Be careful and avoid personal injury.
Replace all the batteries in the remote.
•There is risk of fire or explosion.

ENGLISH
Owner's Manual 9
Prior to operation
Prior to Operation
1. Contact an installation specialist for installation.
2. Plug in the power plug properly.
3. Use a dedicated circuit.
4. Do not use an extension cord.
5. Do not start/stop operation by plugging/unplugging the power cord.
6. If the cord/plug is damaged, ony replace it with an authorized replacement part.
1. Being exposed to direct airflow for a long time may be hazardous to your health. Do not expose
occupants, pets, or plants to direct airflow for a long time.
2. Ventilate the room when the air conditioner is used with other heating devices. Otherwise the oxygen
supply may be inadequate.
3. Do not use this air conditioner for non-specified special purpose (e.g. preserving precision devices, food,
pets, plants, or art objects). Such use may damage your properties.
1. Do not touch the metal parts of the unit when removing the filter. Injury can occur.
2. Do not use water to clean inside the air conditioner. Exposure to water can destroy the insulation,
leading to electric shock.
3. When cleaning the unit, first make sure that the power and breaker are turned off. The fan rotates at a
very high speed during operation. There is a possibility of injury if the unit power is accidently turned on
while the interior of the unit is being cleaned.
For repair and maintenance, contact your authorized service dealer.
Preparing for Operation
Usage
Cleaning and Maintenance
Service
OPERATING TEMPERATURE(°C)
COOLING MODE
INDOOR OUTDOOR
MAX. MIN. MAX. MIN.
32°C21°C43°C21°C
HEATING MODE
INDOOR OUTDOOR
MAX. MIN. MAX. MIN.
27°C20°C24°C1°C

10 Room Air Conditioner
Introduction
Introduction
This symbol alerts you to the risk of electric shock.
This symbol alerts you to hazards that may cause harm to the
air conditioner.
This symbol indicates special notes.
NOTICE
Air Intake
Vents
Air Outlet Vents
Connecting
Wires
Piping
Drain Hose
Base Plate
Forced Operation Button
Front Grille
Air Inlet
Air Filter
Air Discharge
Horizontal Air deflector
Vertical Air deflector
Operation Indication Lamps/
Signal Receptor
(Side) (Rear)
Air outlet
vents
Air intake
vents
Piping
Indoor
Outdoor
•This appliance should be installed in accordance with national wiring regulations. This guide acts
as a guide to help to explain product features.
Symbols used in this Manual
Features