LG Multi F242CX User manual

ENGLISH
LG
Multi Air Conditioner
INSTALLATION MANUAL
LG
website http://www.lgservice.com
IMPORTANT
• Please read this instruction manual completely before
installing the product.
• When the power cord is damaged, replacement should be
performed by authorized personnel only.
• 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.
ESPAÑOL

2Multi Air Conditioner
Multi Air Conditioner Installation Manual
TABLE OF CONTENTS
Safety Precautions............................3
Introduction ........................................8
Symbols used in this manual..........8
Features ...........................................8
Installation ..........................................9
Selection of the best location..........9
Piping Length and Elevation ...........9
Drill a Hole in the Wall...................10
Flaring Work...................................10
The Indoor Unit Installation...........12
Checking the Drainage .................15
Wired Remote Controller
Installation ......................................16
Connecting the Cables..................18
Optional Operation ........................21
❏Connecting cable
❏Pipes: Gas side
Liquid side
❏Insulation materials
❏Additional drain pipe
❏Level gauge
❏Screw driver
❏Electric drill
❏Hole core drill(ø70mm)
❏Flaring tool set
❏Specified torque wrenches
1.8kg.m, 4.2kg.m, 5.5kg.m,
6.6kg.m
(different depending on model No.)
❏Spanner ........................Half union
❏A glass of water
❏Screw driver
❏Hexagonal wrench(4mm)
❏Gas-leak detector
❏Vacuum pump
❏Gauge manifold
Installation
Requirements Required Parts Required Tools

Installation Manual 3
ENGLISH
Safety Precautions
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.
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.
■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 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.

4Multi 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.
■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.
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 plug or unplug the
power supply plug 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 place a heater or other
appliances near the power
cable.
• There is risk of fire and electric
shock.

Installation Manual 5
ENGLISH
Safety Precautions
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 small or 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 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.
Do not use the product in a
tightly closed space for a long
time.
• Oxygen deficiency could occur.
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.
When the product is soaked
(flooded or submerged),
contact an Authorized Service
Center.
• 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.
Ventilate the product from time to time when
operating it together with a stove, etc.
• There is risk of fire or electric shock.
Turn the main power off when cleaning or
maintaining the product.
• There is risk of electric shock.
Gasolin

6Multi Air Conditioner
Safety Precautions
■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.
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.
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 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.
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.
■Operation
90°

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.
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.
•There is risk of fire or explosion
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.
Wax
Thinner

8Multi 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
Air Intake Vents
Air Outlet Vents
Connecting
Wires
Piping
Drain Hose
Base Plate
Air Outlet
Air Intake
(side, rear)
Connection pipe
Drain hose
Connecting wire
Control cover
Air filters
Air outlet vents
Air intake vents
Remote Controller

Installation Manual 9
ENGLISH
Installation
Installation
Selection of the best location
•The place shall easily bear a load exceeding
four times the indoor unit’s weight.
•The place shall be able to inspect the unit as
the figure.
•The place where the unit shall be leveled.
•The place shall allow easy water
drainage.(Suitable dimension “H”is necessary
to get a slope to drain as figure.)
•The place shall easily connect with the
outdoor unit.
•The place where the unit is not affected by an
electrical noise.
•The place where air circulation in the room will
be good .
•There should not be any heat source or steam
near the unit
H
600600
Top view
(unit: mm)
Front view
Front
Inspection hole
(600X600)
Control box
1000
Piping Length and Elevation
Total(A+B+C) 30 30 45 45
Max/Room(A/B/C) 15 15 15 15
Standard length 7.5 7.5 7.5 7.5
In-Out(h1) 7.5 7.5 7.5 7.5
In-In(h2) 7.5 7.5 7.5 7.5
Additional 20 20 20 20
Refrigerent(g/m)
Piping Length (m)
F242CX F362CX F363CX F483CX
F242HX F483HX
h1
h2
A
B
h1
h2
A
B
C

10 Multi Air Conditioner
Installation
•Drill the piping hole with a ø70mm hole core
drill. Drill the piping hole at either the right or
the left with the hole slightly slanted to the
outdoor side.
Drill a Hole in the Wall
5-7mm
(3/16"~5/16")
Indoor
WALL
Outdoor
Flaring Work
Main cause for gas leakage is due to defect in flaring work. Carry out correct flaring work in the
following procedure.
Cut the pipes and the cable.
1. Use the piping kit accessory or the pipes
purchased locally.
2. Measure the distance between the indoor and
the outdoor unit.
3. Cut the pipes a little longer than measured
distance.
4. Cut the cable 1.5m longer than the pipe length.
Burrs removal
1. Completely remove all burrs from the cut cross
section of pipe/tube.
2. Put the end of the copper tube/pipe in a
downward direction as you remove burrs in
order to avoid dropping burrs into the tubing.
Putting nut on
•Remove flare nuts attached to indoor and
outdoor unit, then put them on pipe/tube having
completed burr removal.
(not possible to put them on after flaring work)
Copper
pipe
90°Slanted Uneven Rough
Pipe
Reamer
Point down
Flare nut
Copper tube