LG UBNC186YSS0 Owner’s Manual
OWNER’S MANUAL
ENGLISH
AIR CONDITIONER
Please read this manual carefully before operating
your set and retain it for future reference.
YPE: Ceiling Concealed DuctT
P/NO : MFL55784908
www.lg.com
Ceiling Duct Type Air Conditioner Owner's Manual
TABLE OF CONTENTS
Safety Precautions.........................3
Operating Instructions...................8
Care and Maintenance.................10
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.
• Th e a ir conditioner is n ot intended for use by
young children or invalids without supervision.
• Young children should be supervised to ensure
that they do not play with the
• W hen t he po we r c or d is to b e r ep laced ,
re pl aceme nt w ork s ha ll be p er fo rmed by
authoriz ed per sonnel only using o nly genuine
replacement parts.
• I nstal la tion wo rk m ust b e pe rform ed i n
accordance wi th the National Electric Code by
qualified and authorized personnel only.
air conditioner.
2 Ceiling Duct Type Air Conditioner
Safety Precautions
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
ENGLISH
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.
•
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 intstall a dedicated
circuit and breaker.
•
Improper wiring or installation
may cause fire or electric shock.
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.
Owner's Manual 3
Safety Precautions
Do not modify or extend the
power cable.
Do not install, remove, or
re-install the unit by
yourself (customer).
•
There is risk of fire or electric
shock.
•
There is risk of fire, electric
shock, explosion, or injury.
For installation, always contact the dealer
or an Authorized Service Center.
•
There is risk of fire, electric shock, explosion, or
injury.
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.
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.
Do not install the product on a defective
installation stand.
•
It may cause injury, accident, or damage to the
product.
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.
Operation
Take care to ensure that
power cable could not be
pulled out or damaged
during operation.
•
There is risk of fire or electric
shock.
4 Ceiling Duct Type Air Conditioner
Do not place anything on
the power cable.
•
There is risk of fire or electric
shock.
Do not plug or unplug the
power supply plug during
operation.
•
There is risk of fire or electric
shock.
Safety Precautions
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
prodcut.
•
There is risk of fire or failure of
product.
Gasolin
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.
Do not placeaheater 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.
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.
ENGLISH
When the product is soaked
(flooded or submerged), contact
an Authorized Service Center.
•
There is risk of fire or eletric
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 withastove, etc.
•
There is risk of fire or electric
shock.
Owner's Manual 5
Safety Precautions
Turn the main power off when
cleaning or maintaining the
product.
•
There is risk of electric shock.
Installation
Always check for gas
(refrigerant) leakage after
installation or repair of product.
•
Low refrigerant levels may
cause failure of product.
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.
Install the drain hose to
ensure that water is drained
away properly.
•
A bad connection may cause
water leakage.
Take care to ensure that nobody
couldsteponorfallontothe
outdoor unit.
•
This could result in personal injury
and product damage.
Keep level even when
installing the product.
•
To avoid vibration or water
leakage.
e
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.
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.
6 Ceiling Duct Type Air Conditioner
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 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.
Safety Precautions
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.
Useasoft 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.
Thinner
Wax
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.
Useafirm stool or ladder when
cleaning or maintaining the
product.
•
Be careful and avoid personal
injury.
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 insert hands or other objects
through the air inlet or outlet while the
prodcut is operated.
•
There are sharp and moving parts
that could cause personal injury.
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.
•
There is risk of fire or explosion
ENGLISH
Do not recharge or disassemble the batteries. Do
not dispose of batteries inafire.
•
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.
Owner's Manual 7
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