LG ABUQ18GHLA0 Instruction sheet

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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 : MFL67448509

Single A Air Conditioner Installation Manual
CONTENTS
Safety Precautions ..............................................................................................3
Installation of Outdoor Unit................................................................................6
Wiring Connection...............................................................................................9
Connecting Pipes ..............................................................................................12
Leakage test and Evacuation ...........................................................................15
Test running .......................................................................................................17
Function..............................................................................................................19
Self-diagnosis Function....................................................................................20
Installation Guide at the Seaside .....................................................................21
2Air Conditioner

To prevent the injury of the user or other people and property damage, the following instructions
must be followed.
nBe sure to read before installing the air conditioner.
nBe sure to observe the cautions specified here as they include important items related to safety.
nIncorrect operation due to ignoring instruction will cause harm or damage. The seriousness is
classified by the following indications.
nThe 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.
nInstallation
Be sure not to do.
Be sure to follow the instruction.
Safety Precautions
Always perform grounding.
• Otherwise, it may cause electri-
cal shock.
Donʼt use a power cord, a
plug or a loose socket which
is damaged.
• Otherwise, it may cause a fire
or electrical shock.
For installation of the product,
always contact the service cen-
ter or a professional installation
agency.
• Otherwise, it may cause a fire, elec-
trical shock, explosion or injury.
Securely attach the electrical
part cover to the indoor unit
and the service panel to the
outdoor unit.
•
If the electrical part cover of the indoor
unit and the service panel of the out-
door unit are not attached securely, it
could result in a fire or electric shock
due to dust, water, etc.
Always install an air leakage
breaker and a dedicated
switching board.
• No installation may cause a fire
and electrical shock.
Do not keep or use flammable
gases or combustibles near
the air conditioner.
• Otherwise, it may cause a fire
or the failure of product.
Ensure that an installation frame of the out-
door unit is not damaged due to use for a long
time.
• It may cause injury or an accident.
Do not disassemble or repair the product ran-
domly.
• It will cause a fire or electrical shock.
Use a vacuum pump or Inert (nitrogen) gas when doing leakage test or air purge. Do not com-
press 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 3
Safety Precautions

4Air Conditioner
Safety Precautions
Do not install the product at a place that there
is concern of falling down.
• Otherwise, it may result in personal injury.
Use caution when unpacking and installing.
• Sharp edges may cause injury.
Take the power plug out if
necessary, holding the head
of the plug and do not touch
it with wet hands.
• Otherwise, it may cause a fire
or electrical shock.
Do not use the power cord
near the heating tools.
• Otherwise, it may cause a fire
and electrical shock.
Do not open the suction
inlet of the indoor/outdoor
unit during operation.
• Otherwise, it may electrical
shock and failure.
Do not allow water to run
into electrical parts.
• Otherwise, it may cause the
failure of machine or electrical
shock.
Hold the plug by the head
when taking it out.
• It may cause electric shock
and damage.
Never touch the metal parts
of the unit when removing
the filter.
• They are sharp and may
cause injury.
Do not share the outlet with
other appliances.
• It will cause an electric shock
or a fire due to heat genera-
tion.
Do not use the damaged
power cord.
• Otherwise, it may cause a fire
or electrical shock.
Do not modify or extend the
power cord randomly.
• Otherwise, it may cause a fire
or electrical shock.
Take care so that the power
cord may not be pulled dur-
ing operation.
• Otherwise, it may cause a fire
or electrical shock.
Unplug the unit if strange
sounds, smell, or smoke
comes from it.
• Otherwise, it may cause elec-
trical shock or a fire.
Keep the flames away.
• Otherwise, it may cause a fire.
Do not step on the indoor/outdoor unit and
do not put anything on it.
• It may cause an injury through dropping of the
unit or falling down.
Do not place a heavy object on the power
cord.
• Otherwise, it may cause a fire or electrical
shock.
When the product is submerged into water,
always contact the service center.
• Otherwise, it may cause a fire or electrical
shock.
Take care so that children may not step on
the outdoor unit.
• Otherwise, children may be seriously injured
due to falling down.
nOperation

Installation Manual 5
Safety Precautions
nInstallation
Install the drain hose to ensure that drain
can be securely done.
• Otherwise, it may cause water leakage.
Install the product so that the noise or hot
wind from the outdoor unit may not cause
any damage to the neighbors.
• Otherwise, it may cause dispute with the neigh-
bors.
Always inspect gas leakage after the instal-
lation and repair of product.
• Otherwise, it may cause the failure of product.
Keep level parallel in installing the product.
• Otherwise, it may cause vibration or water
leakage.
Avoid excessive cooling and perform venti-
lation sometimes.
• Otherwise, it may do harm to your health.
Use a soft cloth to clean. Do not use wax,
thinner, or a strong detergent.
• The appearance of the air conditioner may
deteriorate, change color, or develop surface
flaws.
Do not use an appliance for special purposes
such as preserving animals vegetables, pre-
cision machine, or art articles.
• Otherwise, it may damage your properties.
Do not place obstacles around the flow inlet
or outlet.
• Otherwise, it may cause the failure of appli-
ance or an accident.
nOperation

1. Installation Places
• 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.
• Ensure that the spaces indicated by arrows
around front, back and side of the unit.
• Do not place animals and plants in the path of
the warm air.
• Take the air conditioner weight into account and
select a place where noise and vibration are min-
imum.
• Select a place so that the warm air and noise
from the air conditioner do not disturb neighbors.
More than
300mm
Fence or
obstacles
More than 700mm
More than 600mm
More than
More than
300mm
300mm
More than
300mm
Sunroof
Installation of Outdoor Unit
Installation of Outdoor Unit
2. Piping length and the elevation
6Air Conditioner
Unit : mm
FREE JOINT SINGLE OUTDOOR
Ceiling Cassette
Model Capacity
Pipe Size Length A(m) Elevation B(m) Additional
Refrigerant
(g/m)
Gas Liquid Standard Max. Standard Max.
AUUQ18GH1 5kW Ø12.7(1/2) Ø6.35(1/4) 7.5 30 5 15 20
AUUQ21GH1 6kW Ø12.7(1/2) Ø6.35(1/4) 7.5 30 5 15 20
AUUQ24GH1 7kW Ø15.88(5/8) Ø9.52(3/8) 7.5 50 5 30 40
AUUQ36GH1 10kW Ø15.88(5/8) Ø9.52(3/8) 7.5 50 5 30 40
AUUQ42GH1 12.5kW Ø15.88(5/8) Ø9.52(3/8) 7.5 50 5 30 40
AUUQ48GH1 13.4kW Ø15.88(5/8) Ø9.52(3/8) 7.5 50 5 30 40
AUUQ54GH1 15.8kW Ø19.05(3/4) Ø9.52(3/8) 7.5 50 5 30 40
Model Capacity
Pipe Size Length A(m) Elevation B(m) Additional
Refrigerant
(g/m)
Gas Liquid Standard Max. Standard Max.
ATUQ18GPLE3 5kW Ø12.7(1/2) Ø6.35(1/4) 7.5 30 5 15 20
ATUQ21GPLE3 6kW Ø12.7(1/2) Ø6.35(1/4) 7.5 30 5 15 20
ATUQ24GNLE3 7kW Ø15.88(5/8) Ø9.52(3/8) 7.5 50 5 30 40
ATUQ36GMLE3 10kW Ø15.88(5/8) Ø9.52(3/8) 7.5 50 5 30 40
ATUQ42GMLE3 12.5kW Ø15.88(5/8) Ø9.52(3/8) 7.5 50 5 30 40
ATUQ48GMLE3 13.4kW Ø15.88(5/8) Ø9.52(3/8) 7.5 50 5 30 40
ATUQ54GMLE3 15.8kW Ø19.05(3/4) Ø9.52(3/8) 7.5 50 5 30 40

Installation Manual 7
Installation of Outdoor Unit
Ceiling Suspended Air conditioner
Ceiling Concealed Duct
Ceiling Concealed Duct – Low static
Model Capacity
Pipe Size Length A(m) Elevation B(m) Additional
Refrigerant
(g/m)
Gas Liquid Standard Max. Standard Max.
AVUQ18GJLA0 5kW Ø12.7(1/2) Ø6.35(1/4) 7.5 30 5 15 20
AVUQ21GJLA0 6kW Ø12.7(1/2) Ø6.35(1/4) 7.5 30 5 15 20
AVUQ24GJLA0 7kW Ø15.88(5/8) Ø9.52(3/8) 7.5 50 5 30 40
AVUQ36GKLA0 10kW Ø15.88(5/8) Ø9.52(3/8) 7.5 50 5 30 40
AVUQ42GLLA0 12.5kW Ø15.88(5/8) Ø9.52(3/8) 7.5 50 5 30 40
AVUQ48GLLA0 13.4kW Ø15.88(5/8) Ø9.52(3/8) 7.5 50 5 30 40
AVUQ54GLLA0 15.8kW Ø19.05(3/4) Ø9.52(3/8) 7.5 50 5 30 40
Model Capacity
Pipe Size Length A(m) Elevation B(m) Additional
Gas Liquid Standard Max. Standard Max. (g/m)
ABUQ18GHLA0
ABUQ18GL2A0 5kW Ø12.7(1/2) Ø6.35(1/4) 7.5 30 5 15 20
ABUQ21GHLA0
ABUQ21GL2A0 6kW Ø12.7(1/2) Ø6.35(1/4) 7.5 30 5 15 20
ABUQ24GGLA0
ABUQ24GL3A0 7kW Ø15.88(5/8) Ø9.52(3/8) 7.5 50 5 30 40
ABUQ36GGLA0 10kW Ø15.88(5/8) Ø9.52(3/8) 7.5 50 5 30 40
ABUQ42GRLA0 12.5kW Ø15.88(5/8) Ø9.52(3/8) 7.5 50 5 30 40
ABUQ48GRLA0 13.4kW Ø15.88(5/8) Ø9.52(3/8) 7.5 50 5 30 40
ABUQ54GRLA0 15.8kW Ø19.05(3/4) Ø9.52(3/8) 7.5 50 5 30 40

Installation of Outdoor Unit
8Air Conditioner
Night Silent Operation setting
1. Open the Side panel or Top Cover of outdoor unit.
2. Set the SW01N.
3. Close the Side panel or Top Cover.
6
SW01N
SW01N
DIP_SW
AUUQ36GH1
(ATUQ36GMLE3)
(AVUQ36GKLA0)
(ABUQ36GGLA0)
AUUQ18GH1 /AUUQ21GH1/ AUUQ24GH1
(ATUQ18GPLE3/ ATUQ21GPLE3/ ATUQ24GNLE3)
(AVUQ18GJLA0/ AVUQ21GJLA0 / AVUQ24GJLA0)
(ABUQ18GHLA0/ ABUQ21GHLA0/ ABUQ24GGLA0)
(ABUQ18GL2A0/ ABUQ21GL2A0/ ABUQ24GL3A0)
AUUQ42GH1/ AUUQ48GH1/ AUUQ54GH1
(ATUQ42GMLE3/ ATUQ48GMLE3/ ATUQ54GMLE3)
(AVUQ42GLLA0/ AVUQ48GLLA0/ AVUQ54GLLA0)
(ABUQ42GRLA0/ ABUQ48GRLA0/ ABUQ54GRLA0)
6
AUUQ36GH1
(ATUQ36GMLE3)
(AVUQ36GKLA0)
(ABUQ36GGLA0)
AUUQ18GH1 /AUUQ21GH1/ AUUQ24GH1
(ATUQ18GPLE3/ ATUQ21GPLE3/ ATUQ24GNLE3)
(AVUQ18GJLA0/ AVUQ21GJLA0 / AVUQ24GJLA0)
(ABUQ18GHLA0/ ABUQ21GHLA0/ ABUQ24GGLA0)
(ABUQ18GL2A0/ ABUQ21GL2A0/ ABUQ24GL3A0)
AUUQ42GH1/ AUUQ48GH1/ AUUQ54GH1
(ATUQ42GMLE3/ ATUQ48GMLE3/ ATUQ54GMLE3)
(AVUQ42GLLA0/ AVUQ48GLLA0/ AVUQ54GLLA0)
(ABUQ42GRLA0/ ABUQ48GRLA0/ ABUQ54GRLA0)
If installed tube is shorter than 7.5 m, additional charging is not necessary.
Additional Refrigerant = (A -7.5) x Additional refrigerant (g)
CAUTION:
• Capacity is based on standard length and maximum allowance length is on the
basis of reliability.
• Improper refrigerant charge may result in abnormal cycle.
Outdoor unit
Indoor unit
A
B
Outdoor unit
Indoor unit
A
B

Wiring Connection
Wiring Connection
Electrical Wiring
Outdoor
Indoor
Main
power source Switch box
ELCB
Perform the electrical wiring work according to the electrical wiring connection.
• All wiring must comply with local requirements.
•
Select a power source that is capable of supply-
ing the current required by the air conditioner.
• Use a recognized ELCB(Electric Leakage Cir-
cuit Breaker) between the power source and
the unit. A disconnection device to adequately
disconnect all supply lines must be fitted.
• Model of circuit breaker recommended by
authorized personnel only
Installation Manual 9
Connecting Cables between Indoor Unit and Outdoor Unit
Outdoor
unit Indoor unit
1
2
3
1
2
3
Model Phase(Ø) ELCB
AUUQ18GH1
(ATUQ18GPLE3) (AVUQ18GJLA0) (ABUQ18GHLA0) (ABUQ18GL2A0) 1
20A
AUUQ21GH1
(ATUQ21GPLE3) (AVUQ21GJLA0) (ABUQ21GHLA0) (ABUQ21GL2A0) 1
AUUQ24GH1
(ATUQ24GNLE3) (AVUQ24GJLA0) (ABUQ24GGLA0) (ABUQ24GL3A0) 1 25A
AUUQ36GH1
(ATUQ36GMLE3) (AVUQ36GKLA0)(ABUQ36GGLA0) 1 30A
AUUQ42GH1
(ATUQ42GMLE3) (AVUQ42GLLA0) (ABUQ42GRLA0) 1
40A
AUUQ48GH1
(ATUQ48GMLE3) (AVUQ48GLLA0) (ABUQ48GRLA0) 1
AUUQ54GH1
(ATUQ54GMLE3) (AVUQ54GLLA0) (ABUQ54GRLA0) 1

Wiring Connection
10 Air Conditioner
The power cord connected to the outdoor unit should be complied
withIEC 60245 or HD 22.4 S4 (This equipment shall be provided with a
cord set complying with the national regulation.
The connecting cable connected to the outdoor unit should be
complied with IEC 60245 or HD 22.4 S4 (This equipment shall be
provided with a cord set complying with the national regulation.)
If the supply cord is damaged, it must be replaced by a special cord or assembly availible from the manufacturer of its service agent.
CAUTION
NORMAL
CROSS-SECTIONAL
AREA 0.75mm
2
When the connection line between the indoor unit and
outdooor unit is over 40m, connect the telecommunication
line and power line separately.
20mm
GN/YL
35±5mm
10±3mm
GN/YL
20mm
35±5mm
10±3mm
• For wiring, use the designated power wire and connect firmly, then secure to prevent outside pres-
sure being exerted on the terminal block.
• Use an appropriate screwdriver for tightening the terinal screws. A screwdriver with a small head
will strip the head and make proper tighterning impossible.
• Over-tightening the terminal screws may break them.
When none are available, follow the instructions below.
• Do not connect wiring of different thicknesses to the power terminal block. (Slack in the power
wiring may cause abnormal heat.)
• When connecting wiring which is the same thickness, do as shown in the figure below.
u Precautions when laying power wiring
Round pressure terminal Power wire
Use round pressure terminals for connections to the power terminal block.
Model Phase(Ø) Area(mm2)
AUUQ18GH1/AUUQ21GH1/AUUQ24GH1
(ATUQ18GPLE3/ATUQ21GPLE3/ATUQ24GNLE3)
(AVUQ18GJLA0/AVUQ21GJLA0/AVUQ24GJLA0)
(ABUQ18GHLA0/ABUQ21GHLA0/ABUQ24GGLA0)
(ABUQ18GL2A0/ABUQ21GL2A0/ABUQ24GL3A0)
12.5
AUUQ36GH1/AUUQ42GH1/AUUQ48GH1/AUUQ54GH1
(ATUQ36GMLE3/ATUQ42GMLE3/ATUQ48GMLE3/ATUQ54GMLE3)
(AVNQ36GKLA0/AVNQ42GLLA0/AVNQ48GLLA0/AVNQ54GLLA0)
(ABUQ36GGLA0/ABUQ42GRLA0/ABUQ48GRLA0/ABUQ54GRLA0)
16