LG AUUQ18GHT0 User manual

P/NO : MFL68061201 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.
ENGLISH
FRANÇAIS

2TIPS FOR SAVING ENERGY
ENGLISH
• Do not cool excessively indoors. This may be harmful to your health and may consume more elec-
tricity.
• Block sunlight with blinds or curtains while you are operating the air conditioner.
• Keep doors or windows closed tightly while you are operating the air conditioner.
• Adjust the direction of the air flow vertically or horizontally to circulate indoor air.
• Speed up the fan to cool or warm indoor air quickly, in a short period of time.
• Open windows regularly for ventilation as the indoor air quality may deteriorate if the air condition-
er is used for many hours.
• Clean the air filter once every 2 weeks. Dust and impurities collected in the air filter may block the
air flow or weaken the cooling / dehumidifying functions.
For your records
Staple your receipt to this page in case you need it to prove the date of purchase or for warranty
purposes. Write the model number and the serial number here:
Model number :
Serial number :
You can find them labeled on the side of each unit.
Dealer’s name :
Date of purchase :
Here are some tips that will help you minimize the power consumption when you use the air
conditioner. You can use your air conditioner more efficiently by referring to the instructions
below:
TIPS FOR SAVING ENERGY

IMPORTANT SAFETY INSTRUCTIONS 3
ENGLISH
IMPORTANT SAFETY INSTRUCTIONS
READ ALL INSTRUCTIONS BEFORE USING THE APPLIANCE.
Always comply with the following precautions to avoid dangerous situations and ensure peak
performance of your product
WARNING
It can result in serious injury or death when the directions are ignored
CAUTION
It can result in minor injury or product damage when the directions are ignored
WARNING
• Installation or repairs made by unqualified persons can result in hazards to you and others.
• Installation work must be performed in accordance with the National Electric Code by quali-
fied and authorized personnel only.
• The information contained in the manual is intended for use by a qualified service technician
familiar with safety procedures and equipped with the proper tools and test instruments.
• Failure to carefully read and follow all instructions in this manual can result in equipment mal-
function, property damage, personal injury and/or death.
Installation
• Always perform grounding. Otherwise, it may cause electrical shock.
• Don’t use a damaged power cable. Otherwise, it may cause a fire or electrical shock.
• For installation of the product, always contact the service center or a professional installation
agency. Otherwise, it may cause a fire, electrical 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 outdoor unit are
not attached securely, it could result in a fire or electric shock due to dust, water, etc.
• Always install an earth leakage circuit 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 outdoor 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 randomly. 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 explo-
sion. There is the risk of death, injury, fire or explosion.
• 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.
• Do not turn on the breaker or power under condition that front panel, cabinet, top cover, con-
trol box cover are removed or opened. Otherwise, it may cause fire, electric shock, explosion
or death.
!
!
!

4IMPORTANT SAFETY INSTRUCTIONS
ENGLISH
Operation
• Do not share the outlet with other appliances. It will cause an electric shock or a fire due to
heat generation.
• Do not use the damaged power cable. Otherwise, it may cause a fire or electrical shock.
• Do not modify or extend the power cable randomly. Otherwise, it may cause a fire or electri-
cal shock.
• Take care so that the power cable may not be pulled during operation. Otherwise, it may
cause a fire or electrical shock.
• Turn off the unit if strange sounds, smell, or smoke comes from it. Otherwise, it may cause
electrical shock or a fire.
• Keep the flames away. Otherwise, it may cause a fire.
• Do not use the power cable near the heating tools. Otherwise, it may cause a fire and electri-
cal 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.
• Do not touch the power cable with wet hands. 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 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 cable. 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 seri-
ously injured due to falling down.

IMPORTANT SAFETY INSTRUCTIONS 5
ENGLISH
CAUTION
Installation
• 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 neighbors.
• Always inspect gas leakage after the installation 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 leak-
age.
Operation
• Avoid excessive cooling and perform ventilation 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, preci-
sion 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
appliance or an accident.
!

6TABLE OF CONTENTS
ENGLISH
2TIPS FOR SAVING ENER-
GY
3IMPORTANT SAFETY
INSTRUCTIONS
7INSTALLATION OF OUT-
DOOR UNIT
10 Night Silent Operationsetting
11 WIRING CONNECTION
11 Electrical Wiring
12 Connecting Cables betweenIndoor Unit
and Outdoor Unit
14 Connecting the cable to Outdoor Unit
15 CONNECTING PIPES
15 Preparationof Piping
16 Connecting the pipes to the Outdoor
unit
18 Forming the Piping
19 LEAKAGE TEST AND
EVACUATION
19 Preparation
19 Leakage test
20 Evacuation
21 TEST RUNNING
23 FUNCTION
23 ForcedCooling Operation
24 SELF-DIAGNOSIS FUNC-
TION
24 Error Indicator (Outdoor)
26 INSTALLATION GUIDE AT
THE SEASIDE
TABLE OF CONTENTS

INSTALLATION OF OUTDOOR UNIT 7
ENGLISH
- 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
minimum.
- Select a place so that the warm air and noise from the air conditioner do not disturb neighbors.
More than
300 mm
Fence or
obstacles
More than 700 mm
More than 600 mm
More thanMore than
300mm300mm
More than
300 mm
Sunroof
Unit : mm
Installation Places
MODEL CAPACITY
Pipe Size Length A (m) Elevation B (m) Additional
Refrigerant
(g/m)
Gas Liquid
Standard Max. Standard Max.
AUUQ18GHT0 18 kBtu/h Ø 12.7(1/2) Ø 6.35(1/4) 7.5 30 5 15 20
AUUW18GHT0 18 kBtu/h Ø 12.7(1/2) Ø 6.35(1/4) 7.5 50 5 30 20
AUUQ24GHT0
AUUW24GHT0 24 kBtu/h Ø 15.88(5/8) Ø 9.52(3/8) 7.5 50 5 30 40
AUUQ30GHT0
AUUW30GHT0 28 kBtu/h Ø 15.88(5/8) Ø 9.52(3/8) 7.5 50 5 30 40
AUUQ36GHT0
AUUW36GHT0 34 kBtu/h Ø 15.88(5/8) Ø 9.52(3/8) 7.5 50 5 30 40
AUUQ48GHT0
AUUW48GHT0 46 kBtu/h Ø 19.05(3/4) Ø 9.52(3/8) 7.5 50 5 30 40
AUUQ54GHT0
AUUW54GHT0
AUUQ60GHT0
AUUW60GHT0
54 kBtu/h Ø 19.05(3/4) Ø 9.52(3/8) 7.5 50 5 30 40
Free Joint Single Outdoor
Piping length and the elevation
INSTALLATION OF OUTDOOR UNIT

8INSTALLATION OF OUTDOOR UNIT
ENGLISH
MODEL CAPACITY
Pipe Size Length A (m) Elevation B (m)
Additional
Refrigerant (g/m)
Gas Liquid Standard Max. Standard Max.
ATUQ18GPLT0 18 kBtu/h Ø 12.7(1/2) Ø 6.35(1/4) 7.5 30 5 15 20
ATUW18GPLT0 18 kBtu/h Ø 12.7(1/2) Ø 6.35(1/4)
7.5 50 5 30 20
ATUQ24GNLT0
ATUW24GNLT0 24 kBtu/h Ø 15.88(5/8) Ø 9.52(3/8) 7.5 50 5 30 40
ATUQ30GNLT0
ATUW30GNLT0 28 kBtu/h Ø 15.88(5/8) Ø 9.52(3/8) 7.5 50 5 30 40
ATUQ36GMLT0
ATUW36GMLT0 34 kBtu/h Ø 15.88(5/8) Ø 9.52(3/8) 7.5 50 5 30 40
ATUQ48GMLT0
ATUW48GMLT0 46 kBtu/h Ø 19.05(3/4) Ø 9.52(3/8) 7.5 50 5 30 40
ATUQ54GMLT0
ATUW54GMLT0
ATUQ60GMLT0
ATUW60GMLT0
54 kBtu/h Ø 19.05(3/4) Ø 9.52(3/8) 7.5 50 5 30 40
Ceiling Cassette
Ceiling Suspended Air conditioner
MODEL CAPACITY
Pipe Size Length A (m) Elevation B (m)
Additional
Refrigerant (g/m)
Gas Liquid Standard Max. Standard Max.
AVUQ18GJLT0 18 kBtu/h Ø 12.7(1/2) Ø 6.35(1/4) 7.5 30 5 15 20
AVUW18GJLT0 18 kBtu/h Ø 12.7(1/2) Ø 6.35(1/4) 7.5 50 5 30 20
AVUQ24GKLT0
AVUW24GKLT0
AVUQ30GKLT0
AVUW30GKLT0
AVUQ36GLLT0
AVUW36GLLT0
AVUQ48GLLT0
AVUW48GLLT0
AVUQ54GLLT0
AVUW54GLLT0
AVUQ60GLLT0
AVUW60GLLT0
24 kBtu/h Ø 15.88(5/8) Ø 9.52(3/8) 7.5 50 5 30 40
28 kBtu/h Ø 15.88(5/8) Ø 9.52(3/8) 7.5 50 5 30 40
34 kBtu/h Ø 15.88(5/8) Ø 9.52(3/8) 7.5 50 5 30 40
46 kBtu/h Ø 19.05(3/4) Ø 9.52(3/8) 7.5 50 5 30 40
54 kBtu/h Ø 19.05(3/4) Ø 9.52(3/8) 7.5 50 5 30 40

INSTALLATION OF OUTDOOR UNIT 9
ENGLISH
Ceiling Concealed Duct Air conditioner
MODEL CAPACITY
Pipe Size Length A (m) Elevation B (m)
Additional
Refrigerant (g/m)
Gas Liquid Standard Max. Standard Max.
ABUQ18GHLT0 18 kBtu/h Ø 12.7(1/2) Ø 6.35(1/4) 7.5 30 5 15 20
ABUW18GHLT0 18 kBtu/h Ø 12.7(1/2) Ø 6.35(1/4) 7.5 50 5 30 20
ABUQ24GGLT0
ABUW24GGLT0
ABUQ30GGLT0
ABUW30GGLT0
ABUQ36GRLT0
ABUW36GRLT0
ABUQ48GRLT0
ABUW48GRLT0
ABUQ48LRLT0
ABUW48LRLT0
ABUQ54GRLT0
ABUW54GRLT0
ABUQ60GRLT0
ABUW60GRLT0
ABUQ54LRLT0
ABUW54LRLT0
ABUQ53GRLT0 53 kBtu/h Ø 19.05(3/4) Ø 9.52(3/8) 7.5 50 5 30 40
24 kBtu/h Ø 15.88(5/8) Ø 9.52(3/8) 7.5 50 5 30 40
28 kBtu/h Ø 15.88(5/8) Ø 9.52(3/8) 7.5 50 5 30 40
34 kBtu/h Ø 15.88(5/8) Ø 9.52(3/8) 7.5 50 5 30 40
46 kBtu/h Ø 19.05(3/4) Ø 9.52(3/8) 7.5 50 5 30 40
54 kBtu/h Ø 19.05(3/4) Ø 9.52(3/8) 7.5 50 5 30 40
Outdoor unit
Indoor unit
A
B
Outdoor uni
t
Indoor unit
A
B
• Capacity is based on standard length and maximum allowance length is on the basis of
reliability.
• Improper refrigerant charge may result in abnormal cycle.
CAUTION
!
If installed tube is shorter than 7.5 m, additional charging is not necessary.
Additional Refrigerant = (A -7.5) x Additional refrigerant (g)

- Close the Side panel or Top Cover.
10 INSTALLATION OF OUTDOOR UNIT
ENGLISH
Night Silent Operation setting
- Open the Side panel or Top Cover of outdoor unit.
- Set the SW01N.
AUUQ18GHT0/AUUW18GHT0
(ATUQ18GPLT0/ATUW18GPLT0)
(AVUQ18GJLT0/AVUW18GJLT0)
(ABUQ18GHLT0/ABUW18GHLT0)
AUUQ24GHT0/AUUW24GHT0
(ATUQ24GNLT0/ATUW24GNLT0)
(AVUQ24GKLT0/AVUW24GKLT0)
(ABUQ24GGLT0/ABUW24GGLT0)
AUUQ30GHT0/AUUW30GHT0
(ATUQ30GNLT0/ATUW30GNLT0)
(AVUQ30GKLT0/AVUW30GKLT0)
(ABUQ30GGLT0/ABUW30GGLT0)
AUUQ36GHT0/AUUW36GHT0
(ATUQ36GMLT0/ATUW36GMLT0)
(AVUQ36GLLT0/AVUW36GLLT0)
(ABUQ36GRLT0/ABUW36GRLT0)
AUUQ48GHT0/AUUW48GHT0
(ATUQ48GMLT0/ATUW48GMLT0)
(AVUQ48GLLT0/AVUW48GLLT0)
(ABUQ48GRLT0/ABUW48GRLT0)
AUUQ54GHT0/AUUW54GHT0
(ATUQ54GMLT0/ATUW54GMLT0)
(AVUQ54GLLT0/AVUW54GLLT0)
(ABUQ54GRLT0/ABUW54GRLT0)
AUUQ60GHT0/AUUW60GHT0
(ATUQ60GMLT0/ATUW60GMLT0)
(AVUQ60GLLT0/AVUW60GLLT0)
(ABUQ60GRLT0/ABUW60GRLT0)
ABUQ53GRLT0
ABUW48LRLT0/ABUQ48LRLT0
ABUW54LRLT0/ABUQ54LRLT0
6
SW_DIP
AUUQ18GHT0/AUUW18GHT0
(ATUQ18GPLT0/ATUW18GPLT0)
(AVUQ18GJLT0/AVUW18GJLT0)
(AUNQ18GHLT0/ABUW18GHLT0)
AUUQ24GHT0/AUUW24GHT0
(ATUQ24GNLT0/ATUW24GNLT0)
(AVUQ24GKLT0/AVUW24GKLT0)
(ABUQ24GGLT0/ABUW24GGLT0)
AUUQ30GHT0/AUUW30GHT0
(ATUQ30GNLT0/ATUW30GNLT0)
(AVUQ30GKLT0/AVUW30GKLT0)
(ABUQ30GGLT0/ABUW30GGLT0)
AUUQ36GHT0/AUUW36GHT0
(ATUQ36GMLT0/ATUW36GMLT0)
(AVUQ36GLLT0/AVUW36GLLT0)
(ABUQ36GRLT0/ABUW36GRLT0)
AUUQ48GHT0/AUUW48GHT0
(ATUQ48GMLT0/ATUW48GMLT0)
(AVUQ48GLLT0/AVUW48GLLT0)
(ABUQ48GRLT0/ABUW48GRLT0)
AUUQ54GHT0/AUUW54GHT0
(ATUQ54GMLT0/ATUW54GMLT0)
(AVUQ54GLLT0/AVUW54GLLT0)
(ABUQ54GRLT0/ABUW54GRLT0)
AUUQ60GHT0/AUUW60GHT0
(ATUQ60GMLT0/ATUW60GMLT0)
(AVUQ60GLLT0/AVUW60GLLT0)
(ABUQ60GRLT0/ABUW60GRLT0)
ABUQ53GRLT0
ABUW48LRLT0/ABUQ48LRLT0
ABUW54LRLT0/ABUQ54LRLT0
DIP_SW
SW01N
6
SW01N