LG LT-H242PLE0 User manual

P/NO : MFL42291405
www.lg.com
INSTALLATION MANUAL
AIR CONDITIONER
• 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.
TYPE : Ceiling Cassette
ENGLISH ESPAÑOL
PORTUGUESE

2Ceiling Cassette Air Conditioner
Ceiling Cassette Air Conditioner Installation Manual
TABLE OF CONTENTS
Safety Precautions............................3
Introduction........................................8
Symbols used in this Manual..........8
Features ...........................................8
Installation ..........................................9
Installation Tools..................................9
Installation of Indoor,
Outdoor Unit
...................................10
Remote Control Preparation ............14
Air purging.........................................23
Test running ....................................25
Installation guide at the seaside ......27
o Connecting cable
o Pipes: Gas side
Liquid side
o Hanging Bolt
(W 3/8 or M10 length 650mm)
o Insulated drain hose
o Additional Drain hose
(Inner Dia.............32mm)
o Horizontal meter
o Screw driver
o Electric drill
o Hole core drill (ø70mm)
o Flaring Tools set
o Torque Wrenches
o Hexagonal Wrench (4mm, 5mm)
o Gas-leak detector
o Owner’s Manual
o Installation Manual
o Thermometer
Installation
Requirements Required Parts Required Tools

ENGLISH
Installation Manual 3
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.
nMeanings of symbols used in this manual are as shown below.
This symbol indicates the possibility of death or serious injury.
This symbol indicates the possibility of injury or damage.
Be sure not to do.
Be sure to follow the instruction.
Safety Precautions
nInstallation
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.

4Ceiling Cassette Air Conditioner
Safety Precautions
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.
■Operation
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.
Do not let electric parts of the
product get wet.
• It may cause There is risk of
fire, failure of the product, or
electric shock.
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
ENGLISH
Safety Precautions
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.
Gasolin
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.
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.

6Ceiling Cassette Air Conditioner
Safety Precautions
nInstallation
nOperation
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.
Do not install the product where
the noise or hot air from the
outdoor unit could be offensive
to the neighborhoods or damage
property.
• 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.
90˚
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.

Safety Precautions
Installation Manual 7
ENGLISH
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.
Wax
Thinner
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.
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.
• Could adversley effect operation.
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.

8Ceiling Cassette Air Conditioner
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
Introduction
Symbols used in this Manual
Features
Remote
Controller
Anti-bacteria
Air Outlet
Air Inlet

Installation
Installation Manual 9
ENGLISH
Installation
Installation Tools
Figure FigureName
Screw driver
Electric drill
Measuring tape, Knife
Hole core drill
Spanner
Torque wrench
Ohmmeter
Hexagonal wrench
Ammeter
Gas-leak detector
Thermometer,
Horizontal meter
Flaring tool set
Name

10 Ceiling Cassette Air Conditioner
Installation
Installation of Indoor, Outdoor Unit
Selection of the best location
1) Indoor unit
• There should not be any heat source or steam
near the unit.
• There should not be any obstacles to prevent
the air circulation.
• A place where air circulation in the room will
be good.
• A place where drainage can be easily
obtained.
• A place where noise prevention is taken into
consideration.
• Do not install the unit near the door way.
• Ensure the spaces indicated by arrows from
the wall, ceiling, or other obstacles.
• The indoor unit must keep the maintenance
space.
2) Outdoor unit
• If an awning is built over the unit to prevent
direct sunlight or rain exposure, be careful that
heat radiation from the condenser is not
restricted.
• There should not be any animals or plants
which could be affected by hot air discharged.
• Ensure the spaces indicated by arrows from
the wall, ceiling, fence or other obstacles.
Unit:mm
Ceiling
Ceiling Board Ceiling Board
300 or more
Above 2500 400 or less
1000 or more
500 or
more
500 or
more
300 or less
Floor
More than
300mm
Fence or
obstacles
More than 700mm
More than 600mm
More than
More than
300mmm
300mmm
More than
300mm
Sunroof
❈Please use an annexed sheet or the corrugated
cardboard on the bottom of packing as installation
sheet.
❈When using the bottom sheet, please use it after
separating the installation sheet from packing of
the product floor by using a knife etc as a picture
below.
Annexed sheet
Or
Packing corrugated
cardboard on the
bottom