LG | ARNU09GB3G4.ANWALAP | LG ARNU07GB3G4.ANWALAP Owner’s Manual

ENGLISH
OWNER’S MANUAL
AIR
CONDITIONER
Please read this manual carefully before operating your set and retain it for future
reference.
BUILT - IN DUCT - LOW STATIC
Original instruction
www.lg.com
P/NO : MFL69440104
Ceiling Concealed Duct – Low Static Type Indoor Unit Owner’s Manual
TABLE OF CONTENTS
FOR YOUR RECORDS
Safety Precautions.................3
Write the model and serial numbers here:
Model #
Prior to Operation ..................6
Serial #
Maintenance and Service ......7
You can find them on a label on the side of each unit.
Before you Call for
Service..................................9
Dealer's Name
Date Purchased
n 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.
2
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 classified
by the following indications.
WARNING
This symbol indicates the possibility of death or serious injury.
CAUTION
This symbol indicates the possibility of injury or damage to properties only.
n Meanings of symbols used in this manual are as shown below.
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.
Install the panel and the cover
of control box securely.
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 install a dedicated circuit and breaker.
Always ground the product.
• There is risk of fire or electric
shock.
Use the correctly rated breaker
or fuse.
• There is risk of fire or electric
shock.
• Improper wiring or installation
may cause fire or electric shock
• There is risk of fire or electric
shock.
Do not modify or extend the
power cable.
Do not install, remove, or re-install the unit by yourself (customer).
Be cautious when unpacking
and installing the product.
• There is risk of fire, electric shock,
explosion, or injury.
• Sharp edges could cause injury.
Be especially careful of the case
edges and the fins on the condenser and evaporator.
Do not install the product on a
defective installation stand.
Be sure the installation area
does not deteriorate with age.
• There is risk of fire or electric
shock.
For installation, always contact
the dealer or an Authorized
Service Center.
• There is risk of fire, electric shock,
explosion, or injury.
• It may cause injury, accident, or
damage to the product.
• If the base collapses, the air conditioner could fall with it, causing
property damage, product failure,
and personal injury.
Owner’s Manual 3
ENGLISH
Safety Precautions
Safety Precautions
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.
n Operation
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 plug or unplug the
power supply plug during operation.
• There is risk of fire or 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.
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
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.
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 touch(operate) the product with wet hands.
• There is risk of fire or electrical
shock.
Do not store or use flammable
gas or combustibles near the
product.
• There is risk of fire or failure of
product.
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.
When the product is soaked
(flooded or submerged), contact an Authorized Service Center.
• There is risk of fire or electric
shock.
Ventilate the product from time to time when operating it together with a stove, etc.
Do not place anything on the
power cable.
• 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 and electric
shock.
Do not use the product in a
tightly closed space for a long
time.
• Oxygen deficiency could occur.
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.
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 fire or electric shock.
• 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.
Take care to ensure that nobody could step on or
fall onto the outdoor unit.
• There is risk of product damage or failure, or unintended operation.
4
Indoor Unit
• This could result in personal injury and product damage.
Safety Precautions
ENGLISH
CAUTION
n Installation
Always check for gas (refrigerant) leakage
after installation or repair of product.
• Low refrigerant levels may
cause failure of product.
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.
Install the drain hose to ensure that
water is drained away properly.
• A bad connection may cause
water leakage.
Use two or more people to lift and
transport the product.
• Avoid personal injury.
Keep level even when installing
the product.
• To avoid vibration or water leakage.
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.
n Operation
Do not expose the skin directly
to cool air for long periods of
time. (Don't sit in the draft.)
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.
• This could harm to your health.
• There is risk of damage or loss of property.
Use a soft cloth to clean. Do
not use harsh detergents, solvents, etc.
Do not touch the metal parts of the
product when removing the air filter. They are very sharp!
• There is risk of fire, electric
shock, or damage to the plastic
parts of the 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.
• There is risk of personal injury.
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.
Use a firm stool or ladder when
cleaning or maintaining the
product.
Replace the all batteries in the remote
control with new ones of the same
type. Do not mix old and new batteries
or different types of batteries.
• Be careful and avoid personal injury.
• There is risk of fire or explosion
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.
Do not block the inlet or outlet
of air flow.
• It may cause product failure.
Do not step on or put anyting
on the product. (outdoor units)
• There is risk of personal injury
and failure of product.
Do not drink the water drained
from the product.
• It is not sanitary and could cause
serious health issues.
Do not recharge or disassemble the batteries.
Do not dispose of batteries in a
fire.
• They may burn or explode.
If you eat the liquid from the batteries, brush your
teeth and see doctor. Do not use the remote if the
batteries have leaked.
• The chemicals in batteries could cause burns or
other health hazards.
OPERATING TEMPERATURE(°C)
COOLING MODE
INDOOR
OUTDOOR
MAX.
MIN.
MAX.
MIN.
32°C
21°C
43°C
21°C
HEATING MODE
INDOOR
OUTDOOR
MAX.
MIN.
MAX.
MIN.
27°C
20°C
24°C
1°C
Owner’s Manual 5
Prior to operation
Prior to Operation
Preparing for operation
1. Contact an installation specialist for installation.
2. Use a dedicated circuit.
Usage
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. Due to the possibility of oxygen deficiency, ventilate the room when used together with stoves or
other heating devices.
3. 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.
Cleaning and maintenance
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.
Service
For repair and maintenance, contact your authorized service dealer.
6
Indoor Unit
Maintenance and Service
CAUTION: Before performing any maintenance, turn off the main power to
the system.
Grille, Case, and Remote Control
o Turn the system off before cleaning. To clean, wipe with a
soft, dry cloth. Do not use bleach or abrasives.
NOTICE
Supply power must be disconnected before
cleaning the indoor unit.
Air Filter
o Never use any of the followings:
• Water hotter than 40°C
Could cause deformation and/or discoloration.
• Volatile substances
Could damage the surfaces of the air
conditioner.
SI
B en
z ene
N NER
SCO
U RIN
CLB
ARGE
The air filters behind Indoor unit
(the suction side) should be checked and cleaned once
every 2 weeks or more often if necessary.
1. Clean the filter with a vacuum or warm, soapy
water.
• If very dirty, wash with a solution of detergent in lukewarm water.
• If hot water (50°C or more) is used, filter may be deformed.
2. After washing with water, dry well in the shade.
Air-Filter
3. Re-install the air filter.
Owner’s Manual 7
ENGLISH
Maintenance and Service
Maintenance and Service
When the air conditioner is not going to be used for a long time.
When the air conditioner is to
be used again.
When it is not going to be used for
a long time.
Operate the air conditioner on Air circulation mode for 2 to 3 hours.
v Check that the air inlet and outlet of the indoor/outdoor unit are not blocked.
• This will dry out the internal parts.
Turn off the circuit breaker.
Helpful information
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.
The air filters and your electiric bill.
If the air filters become clogged with dust, the
cooling capacity will drop, and 6% of the electricity
used to operate the air conditioner will be wasted.
Operation Tips
Do not overcool the room.
This is not good for the health
and wastes electricity.
Clean the air filter regularly.
Blockages in the air filter reduce the airflow and lower
cooling and dehumidifying effects. Clean at least once
every two weeks.
8
Indoor Unit
Keep blinds or curtains
closed.
Do not let direct sunshine
enter the room when the air
conditioner is in operation.
Ventilate the room occasionally.
Since windows are kept
closed, it is a good idea to
open them and ventilate the
room now and then.
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.
Maintenance and Service
?
Troubleshooting Tips! Save time and money!
Check the following points before requesting repairs or service.... If the malfunction persists,
please contact your dealer.
The air conditioner
does not operate.
The room has a peculiar odor.
• Have you made a mis- • Check that this is not a
take in timer operation? damp smell exuded by
• Has the fuse blown or
the walls, carpet, furnihas the circuit breaker
ture or cloth items in
been tripped?
the room.
Does not cool or heat
effectively.
The air conditioner operation is noisy.
It seems that condensation is leaking from
the air conditioner.
• Condensation occurs
when the airflow from
the air conditioner
cools the warm room
air.
Crack sound is heard.
Air conditioner does
not operate for about 3
minutes when restart.
• This is the protector of
the mechanism.
• Wait about three minutes and operation will
begin.
Remote control display
is faint, or no display
at all.
• Is the air filter dirty?
• For a noise that sounds • This sound is generated • Are the batteries deSee air filter cleaning
pleted?
like water flowing.
by the expansion/ coninstructions.
• Are the batteries in-This is the sound of
striction of the front
• The room may have
serted in the opposite
freon flowing inside the panel, etc. due to
been very hot when the
(+) and (-) directions? air conditioner unit.
changes of temperature.
room air conditioner
• For a noise that sounds
was first turned on.
like the compressed air
Allow time for it to cool
releasing into atmosFilter sign lamp
down.
phere.
(LED) is ON.
• Has the temperature
-This is the sound of
been set incorrectly?
the dehumidifying
• Are the indoor unit's air
water being processed
inlet or outlet vents obinside the air condition- • Cleaning the filter,
press the Timer button
structed?
ing unit.
and ◀ button of wired
remote controller at the
same time for 3 sec.
NOTICE
WATER RESISTANT: The outdoor side of this appliance is WATER RESISTANT.
The indoor side is not water resistant and should not be exposed to excess water.
Owner’s Manual 9
ENGLISH
Before you call for service...
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