LG R18AWN-NC9, R22AWN-NC9, R24AWN-NC9, R22AWN-UC9, R24AWN-UC9 Installation Manual
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LG
Air Conditioner
INSTALLATION MANUAL
LG
Type : Wall Mounted
Indoor Unit
R18AWN-NC9
R22AWN-NC9
R24AWN-NC9
R28AWN-NC9
Outdoor Unit
R18AWN-UC9
R22AWN-UC9
R24AWN-UC9
R28AWN-UC9
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.
2 Air Conditioner
Air Conditioner Installation Manual
CONTENTS
Safety Precautions............................3
Introduction ........................................6
Symbols used in this manual..........6
Installation ..........................................7
Installation parts...............................7
Installation tools ...............................7
Installation map................................8
Selecting the best location .............9
Fixing Installation Plate .................10
Drilling a hole in the wall ...............10
Flaring work ...................................11
Installation of indoor unit ...............12
Connecting the cables ..................18
Checking the drainage ..................20
Forming the piping.........................21
Air purging......................................22
Test running ...................................24
Installation guide at the seaside. ..26
Piping Length and Elevation.........27
❏ Some pieces of type "A" screws
❏ Connecting cable
❏ Installation guide map
❏ Pipes: Gas side
Liquid side
❏ Insulation materials
❏ Additional drain pipe
(Outer diameter ..............15.5mm)
❏ Some pieces of type "B" screws
❏ Some pieces of type "C" screws
❏ Level gauge
❏ Screw driver
❏ Electric drill
❏ Hole core drill(ø70mm)
❏ Horizontal meter
❏ 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
❏ Hexagonal wrench(4mm)
❏ Gas-leak detector
❏ Vacuum pump
❏ Gauge manifold
❏ Owner's manual
❏ Thermometer
❏ Remote controller holder
Installation
Requirements
Required Parts Required Tools
Installation Manual 3
Safety Precautions
To prevent the injury of the user or other people and property damage, the following instructions
must be followed.
■ Be sure to read before installing the air conditioner.
■ Be sure to observe the cautions specified here as they include important items related to safety.
■ Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is
classified by the following indications.
■ The meanings of the 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.
Safety Precautions
Always use a power plug and socket with a ground terminal.
• There is a risk of electric shock.
Do not use a defective or underrated circuit breaker. Use the correctly rated breaker and fuse.
• There is risk of fire or electric shock .
Do not use a multi consent. Always use this appliance on a dedicated circuit breaker.
• Otherwise it can cause electric shock or fire.
For electrical work, contact the dealer, seller, a qualified electrician, or an Authorized Service Center. Do not disassemble
or repair the product by yourself.
• There is risk of fire or electric shock.
Always ground the product as per the wiring diagram. Do not connect the ground wire to gas or water pipes lightening
rod or telephone ground wire.
• 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 due to dust , water etc.
Use the correctly rated breaker or fuse.
• There is risk of fire or electric shock.
Do not modify or extend the power cable. If the power cable or cord has scrathes or skin peeled off or deteriorated then
it must be replaced.
• There is risk of fire or electric shock.
For installation, removal or reinstall , 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. Be sure that the installation area does not deteriorate with age.
• It may cause product to fall.
Never install the outdoor unit on a moving base or a place from where it can fall down.
• The falling outdoor unit can cause damage or injury or even death of a person.
When the product is soaked (flooded or submerged) in water , contact an Authorized Service Center for repair before
using it again.
• There is risk of fire or eletric shock.
In outdoor unit the step-up capacitor supplies high voltage electricity to the electrical components. Be sure to discharge
the capacitor completely before conducting the repair work.
• An charged capacitor can cause electrical shock.
4 Air Conditioner
Safety Precautions
When installing the unit, use the installation kit provided with the product.
• Otherwise the unit may fall and cause severe injury.
Be sure to use only those parts which are listed in the svc parts list. Never attempt to modify the equipment.
• The use of inappropriate parts can cause an electrical shock, excessive heat generation or fire.
Indoor/outdoor wiring connections must be secured tightly and the cable should be routed properly so that there is no
force pulling the cable from the connection terminals.
• Improper or loose connections can cause heat generation or fire.
Safely dispose off the packing materials. Like screws, nails, batteries, broken things etc after installation or svc and then
tear away and throw away the plastic packaging bags.
• Children may play with them and cause injury.
Make sure to check that the power cable plug is not dirty, loose or broken and then only insert the plug completely.
• Dirty, loose or broken power plug can cause electric shock or fire.
Be sure to check the refrigerant to be used. Please read the label on the product.
• Incorrect refrigerant used can prevent the normal operation of the unit.
Don't use a power cord, a plug or a loose socket which is damaged.
• Otherwise it may cause a fire or electrical shock.
Do not touch , operate, or repair the product with wet hands. Hold the plug by hand when taking out
• There is risk of electric shock or fire.
Do not place a heater or other heating appliances near the power cable.
• There is risk of fire and electric shock.
Do not allow water to run into electric parts. Install the unit away from water sources.
• There is risk of fire, failure of the product, or electric shock.
Do not store or use or even allow flammable gas or combustibles near the product.
• There is risk of fire.
Do not use the product in a tightly closed space for a long time. Perform ventilation regularly.
• Oxygen deficiency could occur and hence harm your health.
Do not open the front grille 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.
If strange sound, smell or smoke comes from product.Immediately turn the breaker off or disconnect the power supply cable.
• There is risk of electric shock or fire.
Ventilate the product room from time to time when operating it together with a stove, or heating element etc.
• Oxygen deficiency can occur and hence harm your health.
Turn the main power off and unplug the unit when cleaning or repairing the product.
• There is risk of electric shock.
When the product is not to 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 especially kids could step on or fall onto the outdoor unit.
• This could result in personal injury and product damage.
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 to turn the unit ON/OFF .
• There is risk of fire or electric shock.
When flammable gas leaks, turn off the gas and open a window for ventilation befor turning on the product.
• Do not use the telephone or turn switches on or off. There is risk of explosion or fire.
Installation Manual 5
Safety Precautions
Two or more people must 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.
Install the drain hose to ensure that the condensed water is drained away properly.
• A bad connection may cause water leakage.
Keep level even when installing the product.
• To avoid vibration or noise.
Do not install the product where the noise or hot air from the outdoor unit could damage or disturb the neighborhoods.
• It may cause a problem for your neighbors and hence dispute.
Always check for gas (refrigerant) leakage after installation or repair of product.
• Low refrigerant levels may cause failure of product.
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.
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 or splashing water 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.
• 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 after cleaning. Clean the filter every two weeks or more often if necessary.
• A dirty filter reduces the efficiency.
Do not insert hands or other objects through the air inlet or outlet while the product is operating.
• There are sharp and moving parts that could cause personal injury.
Be cautious when unpacking and installing the product.
• Sharp edges could cause injury.
If the refrigerant gas leaks during the repair, do not touch the leakaing refrigerant gas.
• The refrigernat gas can cause frostbite (cold burn)
Do not tilt the unit when removing or uninstalling it.
• The condensed water inside can spill .
Do not mix air or gas other than the specified refrigerant used in the system .
• If air enters the refrigerant system, an excessively high pressure results, causing equipment damage or injury.
If the refrigerant gas leaks during the installation, ventilate the area immediately.
• Otherwise it can be harmfull for your health.
Dismantling the unit, treatment of the refrigerant oil and eventual parts should be done in accordance with local and
national standards. 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 product failure.
Do not recharge or disassemble the batteries. Do not dispose off 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.
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.
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 expose your skin or kids or plants to the cool or hot air draft.
• This could harm to your health.
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, maintaining or repairing the product at an height.
• Be careful and avoid personal injury.
6 Air Conditioner
The figure of product can be different according to the type of model.
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
Type "A" screw
Type "C" screwType "B" screw
The feature can be changed according a type of model.
Remote control holder
Installation plate
Figure FigureName
Screw driver
Electric drill
Measuring tape, Knife
Hole core drill
Spanner
Torque wrench
Multi-meter
Hexagonal wrench
Ammeter
Gas-leak detector
Thermometer,
Level
Flaring tool set
Name
Installation Manual 7
Installation
Installation Parts
Installation Tools
Installation
Read carefully, and then follow step by step.
8 Air Conditioner
Installation
Installation Map
Connecting cable
(Optional Parts)
Vinyl tape (Wide)
• Apply after carrying out a
drainage test.
• To carry out the drainage
test, remove the air filters
and pour water into the heat
exchanger.
Saddle
Gas side piping (Optional Parts)
Liquid side piping (Optional Parts)
Additional drain pipe
Vinyl tape (Narrow)
Drain Hose
Installation plate
Sleeve
Bushing-Sleeve
Putty(Gum Type Sealant)
Bend the pipe as closely
on the wall as possible,
but be careful that it
doesn't break.
You should purchase the installation parts.
NOTICE
- The feature can be changed according a type of model.
Installation Manual 9
Installation
Indoor unit
1. There should not be any heat or steam near
the unit.
2. Select a place where there are no obstacles
around of the unit.
3. Make sure that condensation drainage can be
conveniently routed away.
4. Do not install near a doorway.
5. Ensure that the interval between a wall and
the left (or right) of the unit is more than
100mm. The unit should be installed as high
as possible on the wall, allowing a minimum
of 200mm from ceiling.
6. Use a metal detector to locate studs to
prevent unnecessary damage to the wall.
Outdoor unit
1. If an awning is built over the unit to prevent
direct sunlight or rain exposure, make sure
that heat radiation from the condenser is not
restricted.
2. Ensure that the space around the back and
sides is more than 300mm. The space in front
of the unit should be more than 700mm of
space.
3. Do not place animals and plants in the path
of the warm air.
4. Take the weight of the air conditioner into
account and select a place where noise and
vibration are minimum.
5. Select a place where the warm air and noise
from the air conditioner do not disturb
neighbors.
Select the best Location
More than 200
More than
100
More than 2300
More than
100
(Unit : mm)
Install the indoor unit on the wall where the height from the floor is more than 2300mm.
More than
300
More than
300
Sunroof
Fence or
obstacles
More than
700
More than
600
(Unit : mm)
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