LG A2UW18GFAA INSTALLATION MANUAL
P/NO : MFL68883813
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.
Ɠ
This product contains Fluorinated Greenhouse Gases. (R410A)
Multi Standard
Original instruction
www.lg.com
Copyright © 2017 LG Electronics Inc. All Rights Reserved.
ENGLISH ESPAÑOL
PORTUGUÊS
IMPORTANT SAFETY INSTRUCTIONS
2
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 qualified 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 malfunction, property damage, personal injury
and/or death.
Installation
• Do not use a defective or underrated circuit breaker. Use the correctly
rated breaker and fuse. 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 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.
IMPORTANT SAFETY INSTRUCTIONS
3
ENGLISH
• 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.
• 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.
• When installing the unit, use the installation kit provided with the
product. Otherwise the unit may fall and cause severe injury.
• 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.
• 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.
Operation
• 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.
• 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.
• 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.
IMPORTANT SAFETY INSTRUCTIONS
4
ENGLISH
• 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.
• 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.
• 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.
CAUTION
!
Installation
• 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.
IMPORTANT SAFETY INSTRUCTIONS
5
ENGLISH
• 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.
• Please install safely at a place that can sufficiently endure the weight
of the product.
If the strength is not sufficient, the product may fall and cause injury.
Operation
• 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.
IMPORTANT SAFETY INSTRUCTIONS
6
ENGLISH
• 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.
TABLE OF CONTENTS
TABLE OF CONTENTS
7
ENGLISH
2 IMPORTANT SAFETY
INSTRUCTIONS
8 INSTALLATION
9 INSTALLATION OF
INDOOR, OUTDOOR
UNIT
9 Select the best location
10 Fixing Installation Plate
11 Piping length and elevation
11 Refrigerant charge
12 Drill a hole in the wall
12 INSTALLATION OF
WIRED REMOTE CONTROLLER
14 Wired remote controller installation
15 FLARING WORK AND
CONNECTION OF PIPING
15 Flaring work
16 Connection of piping - Indoor
18 Connection of piping - Outdoor
19 CONNECTING THE CABLE
BETWEEN INDOOR UNIT
AND OUTDOOR UNIT
19 Connect the cable to the Indoor unit
21 Connect the cable to the Outdoor unit
25 AIR PURGING AND EVAC-
UATION
25 Checking method
26 Evacuation
27 INSTALLATION PI485
28 TEST RUNNING
29 FUNCTION
29 Dip S/W Setting
30 Forced Cooling Operation
31 Wiring Error Check
31 Saving Power Consumption
32 Night Quiet Mode
33 Mode Lock
33 SLC (Smart Load Control) Mode
34 PCB Display(18/24 k Model Only)
35 MAX COMBINATION
CAPACITY
36 INSTALLATION GUIDE AT
THE SEASIDE
36 SEASONAL WIND AND
CAUTIONS IN WINTER
37 Airborne Noise Emission
37 Limiting concentration
23 CHECKING THE
DRAINAGE AND FORMING THE PIPINGS
23 Checking the Drainage
24 Forming the Piping
INSTALLATION
Installation plate
Type "B" screws
Type "A" screw (6 EA) Type "A" screw (8 EA) Type "A" screw (7 EA)
Holder Remote Control
Type "A" screw and plastic anchors
500(19-11
/16
) or
le
ss
8
ENGLISH
INSTALLATION
Installation Parts
Clearance of side discharge unit [Unit : mm(inch)]
Do not install the product where sufficient ventilation is not secured.
The performance may be decreased or the product may not be operated.
s
les
300(11-13/16)
or
more
500(19-11/16) or
600(23-19/
or
more
32)
600(23-19/32) or more
1000(39-3/8) or more
300(11-13/16)
or more
ss
ss
e
rom
or
more
ro )8/
3-9
3(0001
H
more
300(11-13/16)
or
500(19-11/16) or le
500(19-11/16) or le
D
L
1000(39-3/8)
h In case of series or another installation, please refer to related PDB.
39-3/8) or more
(
0
001
300(11-13/16)
or more
300(11-13/16)
or more
2000(78-3/4) or more
INSTALLATION OF INDOOR, OUTDOOR UNIT
More than 20cm
More than
10cm
More than 2.3m
More than
10cm
More than 20cm
More than
10cm
More than 2.3m
More than
10cm
More than 20cm
More than
10cm
More than 2.3m
More than
10cm
more than
70cm
more than
30cm
more than 60cm
more than
30cm
more than
60cm
INSTALLATION OF INDOOR, OUTDOOR UNIT
9
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Read completely, then follow step by step.
You need to select adequate installation location
considering the following conditions, and make
sure to acquire the consent of the user.
Select the best location
1 Do not have any heat or steam near the unit.
2 Select a place where there are no obstacles
3 Make sure that condensation drainage can be
4 Do not install near a doorway.
5
6 Use a stud finder to locate studs to prevent
Indoor unit
in front of the unit.
conveniently routed away.
Ensure the spaces indicated by arrows from the
wall, ceiling, fence or other obstacles.
unnecessary damage to the wall.
CAUTION
!
Install the indoor unit on the wall where
the height from the floors more than 2.3
meters. (ART COOL Type Only 1.5m)
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 spaces indicated by arrows
around front, back and side of the unit.
3 Do not place animals and plants in the path of
the warm air.
4 Take the air conditioner weight into account
and select a place where noise and vibration
are minimum.
5 Select a place so that the warm air and noise
from the air conditioner do not disturb neighbors.
6 Place that can sufficiently endure the weight
and vibration of the outdoor unit and where
even installation is possible.
7 Place that has no direct influence of snow or
rain.
8 Place with no danger of snowfall or icicle
drop.
9 Place without weak floor or base such as
decrepit part of the building or with a lot of
snow accumulation.
10 Sufficient ventilation is secured.
Rooftop Installations
If the outdoor unit is installed on a roof structure,
be sure to level the unit. Ensure the roof structure and anchoring method are adequate for the
unit location. Consult local codes regarding
rooftop mounting.
10
Chassis
Hook
Installation Plate
Type “A”
Installation Plate
Type “A”
Installation Plate
Chassis
Hook
Type "A" Screws
Unit
Outline
Left Rear
Piping
Right Rear
Piping
Place a level on raised tab
(Unit : mm)
Installation plate
Ø65
Ø65
184
220
156
307
460 567
Chassis
Hook
Installation Plate
Type “A”
Installation plate
Left rear piping Right rear piping
Ø65
Ø65
105mm
105mm
65mm
55mm
45mm
140mm
Ø65
65mm65mm
65mm
45mm
Ø65
Installation plate
Left rear piping Right rear piping
Installation plate
Left rear piping Right rear piping
Ø65
133mm
101mm
101mm
Ø65
100mm
ENGLISH
INSTALLATION OF INDOOR, OUTDOOR UNIT
Fixing Installation Plate
The wall you select should be strong and solid
enough to prevent vibration
1 Mount the installation plate on the wall
with type "A" screws. If mounting the unit
on a concrete wall, use anchor bolts.
- Mount the installation plate horizontally
by aligning the centerline using a level.
<Type 1>
2 Measure the wall and mark the centerline.
It is also important to use caution concerning the location of the installation platerouting of the wiring to power outlets is
through the walls typically. Drilling the hole
through the wall for piping connections
must be done safely.
<Type 2>
Indoor Type
Wall mounted
<Type 1>
<Type 2>
<Type 3>
Capacity
(kBtu/h)
9, 12 1, 3
18 2, 4
Type
<Type 3>
<Type 4>
<Type 4>
INSTALLATION OF INDOOR, OUTDOOR UNIT
Piping length and elevation
Multiple Piping Models (Unit: m)
Phase
1Ø
Capacity
(kBtu/h)
18 30 20 15 7.5
24 50 25 15 7.5
36 75 25 15 7.5
Total Length
Max Length
(A/B)
Max Elevation
(h1)
In-In Elevation
(h2)
11
ENGLISH
A
h2
h1
B
Multiple Piping Type
CAUTION
!
Capacity is based on standard length and
maximum allowance length is on the
basis of reliability. If outdoor unit is at
higher elevation than the indoor units,
after 24m of vertical height, 1 oil trap is
required.
Refrigerant charge
The calculation of the additional charge should be taken in account for the length of extra pipe.
Multiple Piping Models (Unit: m)
Phase
1Ø
• Multiple Piping Models
Additional charge (g) = ((A Room Installation Length – Standard Length ) x 20g/m
h CF = Max. number of connectable indoor unit – Total number of connected indoor unit
Capacity
(kBtu/h)
18 7.5 20 30 20 20
24 7.5 25 50 22.5 20
36 7.5 25 75 37.5 20
Standard
Length (m)
+ (B Room Installation Length – Standard Length ) x 20g/m +.. )
- CF(Correction Factor) x 150
Max Piping for
one room (m)
Max total
Piping Length
Chargeless
Length
Charge (g/m)
Additional
INSTALLATION OF WIRED REMOTE CONTROLLER
2
2
1
3
3
<Wire guide grooves>
12
ENGLISH
Drill a hole in the wall
Drill the piping hole with a Ø65mm hole core drill. Drill the piping hole at either the right or the
left with the hole slightly slanted to the outdoor side.
WALL
Indoor
Outdoor
5-7mm
(3/16"~5/16")
INSTALLATION OF WIRED REMOTE CONTROLLER
1 Please fix tightly using provided screw after placing remote controller setup board on the
place where you like to setup.
- Please set it up not to bend because poor setup could take place if setup board bends.
Please set up remote controller board fit to the reclamation box if there is a reclamation box.
2 Can set up Wired remote controller cable into three directions.
- Setup direction: the surface of wall reclamation, upper, right
- If setting up remote controller cable into upper and right side, please set up after removing
remote controller cable guide groove.
h Remove guide groove with long nose.
① Reclamation to the surface of the wall
② Upper part guide groove
③ Right part guide groove
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