LG ARNU18GV1A4 Owner's Manual
OWNER’S MANUAL
AIR
CONDITIONER
ENGLISH
ESPAÑOL
PORTUGUÊS
Please read this manual carefully before operating
your set and retain it for future reference.
Ceiling Suspended
Original instruction
Models:
ARNU18GV1A4 ARNU24GV1A4
ARNU36GV2A4 ARNU48GV2A4
P/NO : MFL68961004
REV.00_06212017
www.lg.com
2 Indoor Unit
Ceiling Suspended Convertable Indoor Unit Owner’s 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
to prove date of purchase or to issue warranty.
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 ..................6
Maintenance and Service ......7
Before you Call for
Service..................................9
Safety Precautions
Owner’s Manual 3
ENGLISH
Safety Precautions
To prevent injury to 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.
WARNING
CAUTION
This symbol indicates the possibility of death or serious injury.
This symbol indicates the possibility of injury or damage to properties only.
■ Meanings of symbols used in this manual are as shown below.
Be sure not to do.
Be sure to follow the instruction.
WARNING
■ 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 a
licensed electrician.
• 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.
Do not modify or extend the
power cable.
• There is risk of fire or electric
shock.
Do not install, remove, or reinstall 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
a licensed electrician.
• 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.
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.
Safety Precautions
4 Indoor Unit
Do not place a heater or other
appliances near the power
cable.
• There is risk of fire and electric
shock.
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.
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 smell of
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 panel of the
product during operation.
• There is risk of physical injury,
electric shock, or product failure.
When the product is soaked
(flooded or submerged), contact The installing contractor.
• 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.
Turn the main power off when
cleaning or maintaining the
product.
• There is risk of electric shock.
Take care to ensure that
nobody could step on or fall
onto the outdoor unit.
• This could result in personal injury
and product damage.
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.
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.
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.
Do not touch(operate) the product with wet hands.
• There is risk of fire or electrical
shock.
■ Operation
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.
Use Inert (nitrogen) gas when doing leakage test.
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.
Safety Precautions
Owner’s Manual 5
ENGLISH
CAUTION
■ 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.
■ Operation
Use two or more people to lift and transport the product.
• Avoid personal injury.
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.
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 anyting
on the product. (outdoor units)
• There is risk of personal injury
and failure of product.
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
product is operated.
• There are sharp and moving parts
that could cause personal injury.
Do not drink the water drained
from the product.
• It is not sanitary and could cause
serious health issues.
Use a firm stool or ladder when cleaning or maintaining the product.
•
Be careful and avoid personal injury.
• This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved. Children shall not play
with the appliance. Cleaning and user maintenance shall not be made by children without supervision.
Prior to Operation
6 Indoor Unit
1. Contact an installation specialist for installation.
2. Use a dedicated circuit.
1. Being exposed to direct airflow for an extended period of time could be hazardous to your health.
Do not expose occupants, pets, or plants to direct airflow for extended periods of time.
2. Do not use this air conditioner for non-specified special purposes (e.g. preserving precision
devices, food, pets, plants, and art objects). Such usage could damage the items.
1. Do not touch the metal parts of the unit when removing the filter. Injuries can occur when handling
sharp metal edges.
2. Do not use water to clean inside the air conditioner. Exposure to water can destroy the insulation,
leading to possible 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’s power is accidentally triggered on while cleaning inner parts of the unit.
For repair and maintenance, contact your authorized service dealer.
Preparing for operation
Usage
Cleaning and maintenance
Service
Prior to Operation
Right side cover
Air filters
(behind inlet grille)
Air inlet vent
(inlet grille)
Louver
Air outlet vent
Left side cover
Maintenance and Service
When the air conditioner is not going to be used for a long time.
When air conditioner is not going to be
used for a long time.
Operate the air conditioner on Air circulation mode for 2 to 3 hours.
• This will dry out the internal mechanisms.
Turn off the circuit breaker.
CAUTION
CAUTION
Turn off the circuit breaker when the air conditioner
is not going to be used for a long time.
Dirt may collect and may cause a fire.
Remove the batteries from the remote
controller.
Operation Tips
Do not overcool the room.
Keep blinds or curtains
closed.
When the air conditioner is used again.
Clean the air filter and install it in the
indoor unit.
(Refer to page 7 for cleaning filters.)
Check that the air inlet and outlet of the
indoor/outdoor unit are not blocked.
Check that the ground wire is connected correctly. It may be connected to
the indoor unit side.
Keep the room temperature
uniform.
This is not good for the health
and wastes electricity.
Make sure that the doors
and windows are shut tight.
Avoid opening doors and windows as much as possible to
keep the cool air in the room.
ELECTRONIC SPECIFICATION:
POWER : 220-240 V~ 50/60 Hz
CURRENT: 0,97 A
FUSE : 250V/T3,15 A
8 Indoor Unit
Do not let direct sunshine enter
the room when the air condi-
tioner is in operation.
Clean the air filter regularly.
Blockages in the air filter
reduces the airflow and lowers
the cooling and dehumidifying
effects. Clean at least once in
every two weeks.
Adjust the vertical and horizon-
tal airflow direction to ensure a
uniform temperature in the
room.
Ventilate the room occasion-
ally.
Since windows are kept closed,
it is a good idea to open them
and ventilate the room now and
then.
Maintenance and Service
Owner’s Manual 9
ENGLISH
Before you call for service...
Check the following points before requesting repairs or service.... If the malfunction persists,
please contact your dealer.
WATER RESISTANT: The indoor unit is not water resistant and should not be exposed to excess water.
NOTE
?
Troubleshooting Tips! Save time and money!
Case Explanation
The air conditioner does not
operate.
• Have you made a mistake in timer operation?
• Has the fuse blown or has the circuit breaker been tripped?
The room has a peculiar odor.
• Check that this is not a damp smell exuded by the walls, carpet, furniture,
or cloth items in the room.
It seems that condensation is
leaking from the air conditioner.
• Condensation occurs when the airflow from the air conditioner cools the
warm room air.
Air conditioner does not operate for about 3 minutes when
restarted.
• This is the protector of the mechanism.
• Wait about three minutes and operation will begin.
Does not cool or heat effectively.
• Is the air filter dirty? See air filter cleaning instructions.
• Has the temperature been set incorrectly?
• Are the indoor unit's air inlet or outlet vents obstructed?
The air conditioner operation
is noisy.
• For a noise that sounds like water flowing.
- This is the sound of freon flowing inside the air conditioner unit.
• For a noise that sounds like the compressed air releasing into atmosphere.
- This is the sound of the dehumidifying water being processed inside the
air conditioning unit.
Crack sound is heard.
• This sound is generated by the expansion/constriction of the front panel,
etc. due to changes of temperature.
10 Indoor Unit
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