LG ARNU15GTRC4 INSTALLATION MANUAL
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.
P/NO : MFL68686508
www.lg.com
TYPE : Ceiling Cassette – 4Way
Original instruction
ENGLISH
ESPAÑOL
PORTUGUESE
2 Indoor Unit
Ceiling Cassette - 4Way Type Indoor Unit Installation Manual
TABLE OF CONTENTS
o Installation guide map
o Four type "A" screws & plastic
anchors
o Connecting cable
o Pipes: Gas side
Liquid side
(Refer to Product
Data)
o Insulation materials
o Additional drain pipe
o Level gauge
o Screw driver
o Electric drill
o Hole core drill
o Horizontal meter
o Flaring tool set
o Specified torque wrenches
(different depending on model No.)
o Spanner .......Half union
o Hexagonal wrench
o Gas-leak detector
o Vacuum pump
o Gauge manifold
o Owner's manual
o Thermometer
Installation Parts ....................3
Safety Precautions.................4
Installation
Selection of the best location
...6
Ceiling dimension and hang-
ing bolt location ......................7
Wiring Connection .................8
Installation of Decoration
Panel ....................................10
Drain Piping..........................11
Ceiling Height Selection ......12
Dip Switch Setting ...............13
Group Control Setting..........14
Model Designation ..............19
Airborne Noise Emission.....19
Limiting concentration .........19
Installation Requirements
Required Parts Required Tools
Installation Manual 3
Installation Parts
ENGLISH
Installation Parts
• Screws for fixing panels are attached to decoration panel.
Installation Tool
Air Outlet
Name
Quantity
Shape
Drain hose
1 EA
Clamp metal
2 EA
Air
Intake
Wired Remote Controller(Accessory)
Washer for
hanging backet
8 EA
Clamp
(Tie Wrap)
4 EA
Anti-bacteria filter
Insulation for
fitting
1 SET
for gas pipe
(Other)
• Paper pattern for
installation
• Owner's manual
• Installation manual
for liquid pipe
4 Indoor Unit
Safety Precautions
Safety Precautions
To prevent injury to the user or other people and property damage, the following instructions must be followed.
n Be sure to read before installing the air conditioner.
n Be sure to observe the cautions specified here as they include important items related to safety.
n Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by the
following indications.
n Meanings 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 to properties only.
Be sure not to do.
Be sure to follow the instruction.
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.
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.
Do not modify or extend the
power cable.
• There is risk of fire or electric
shock.
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.
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.
Installation Manual 5
Safety Precautions
ENGLISH
n Operation
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 store or use flammable gas or combustibles near the product.
• There is risk of fire or failure of product.
Use two or more people to lift and transport the product.
• Avoid personal injury.
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.
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.
n 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.
• If the temperature might rise above 30 ℃ or the humidity might rise above RH 80%, attach the DewProtective kit or use another insulation to the indoor body.
h Dew Protective kit is sold separately.
Use glass wool material or polyethylene foam and make sure at least 10mm thick.
• There should not be any heat source or steam near the unit.
• There should not be any obstacles to 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 have the maintenance space.
Read completely, then follow step by step.
Unit:mm
Ceiling
Ceiling Board
Ceiling Board
300 or more
Above 2 500
4 000 or less
1 000
or more
500 or
more
500 or
more
300 or less
Floor
6 Indoor Unit
Installation
Installation
Selection of the best location
CAUTION : In case that the unit is installed near the sea, the installation parts
may be corroded by salt. The installation parts (and the unit) should be taken
appropriate anti-corrosion measures.
h Please use an annexed sheet or the corrugated
cardboard on the bottom of packing as installation sheet.
h 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
Installation Manual 7
Installation
ENGLISH
Ceiling dimension and hanging bolt location
• The dimensions of the paper model for installation are the same as those of the ceiling opening dimensions.
• Avoid the following installation location.
1. Such places as restaurants and kitchen where considerable amount of oil steam and flour is generated.
These may cause heat exchange efficiency reduction, or water drops, drain pump mal-function.
In these cases, take the following actions;
• Make sure that ventilation fan is enough to cover all noxious gases from this place.
• Ensure enough distance from the cooking room to install the air conditioner in such a place where it may
not suck oily steam.
2. Avoid installng air conditioner in such
places where cooking oil or iron powder is
generated.
3. Avoid places where inflammable gas is
generated.
4. Avoid place where noxious gas is
generated.
5. Avoid places near high frequency
generators.
CAUTION :
• This air-conditioner uses a drain pump.
• Install the unit horizontally using a
level gauge.
• During the installation, care should be
taken not to damage electric wires.
• Select and mark the position for fixing bolts and piping hole.
• Decide the position for fixing bolts slightly tilted to the drain
direction after considering the direction of drain hose.
• Drill the hole for anchor bolt on the wall.
Ceiling
Ceiling board
Level gauge
TQ/TR Chassis
585~660(Ceiling opening)
517
523
319
570
570
461
517
585~660(Ceiling opening)
Unit:mm
TM/TN/TP Chassis
875
(Ceiling opening)
787
840 Unit size
671
(Hanging bolt)
840 Unit size
(Hanging bolt)
684
(Ceiling opening)
875
Unit:mm
NOTICE
Air conditioner
Take enough
distance
Cooking table
Use the ventilation fan
for smoke-collecting
hood with sufficient
capacity.
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