LG LBUH366GSS0 INSTALLATION MANUAL
LG Concealed Duct
Air Conditioner
INSTALLATION MANUAL
LG
IMPORTANT
• Please read this installation manual completely before
installing the product.
• When the power cord is damaged, replacement work shall
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 Concealed Duct Air Conditioner
Ceiling Duct Type Air Conditioner Installation Manual
TABLE OF CONTENTS
Safety Precautions..............3
Introduction .........................8
Installation of Indoor,
Outdoor Unit ........................9
Connecting Pipes to the
Indoor Unit .........................19
Connecting Pipes to the
Outdoor Unit ......................21
Checking the Drainage .....21
Connecting Cables
between Indoor Unit and
Outdoor Unit ......................22
Air Purging and
Evacuation .........................26
Group Control....................28
Two Thermistor system ....28
E.S.P.(External Static
Pressure) Setting ..............29
How to Set E.S.P? .............29
External Static Pressure &
air Flow...............................31
Checking the Power Cord &
Test Running .....................32
Installation Guide at the
Seaside...............................33
Installation
Requirements
Required Parts Required Tools
•
Four Type “A” screws
•
Connecting cable
•
Level
•
Screw driver
•
Electric drill
•
Hole core drill (ø70mm)
•
Pipes: Gas side .....
5
/8", 3/4"
Liquid side .............
1
/4", 3/8", 1/2"
•
Insulated drain hose
•
Insulation materials
•
Flaring Tools set
•
Additional Drain hose
(Inner Dia...............25mm)
•
Screw driver
•
Hexagonal Wrench (4mm/5mm)
•
Gas-leak Detector
To prevent injury to the user or other people and property damage, the following instructions must be followed.
■ Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by the
following indications.
■ 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.
Be sure not to do.
Be sure to follow the instruction.
WARNING
■ 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.
Safety Precautions
Installation Manual 3
Safety Precautions
WARNING
CAUTION
■ Operation
Do not modify or extend the
power cable.
• There is risk of fire or electric shock.
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.
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 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 store or use flammable
gas or combustibles near the
product.
• There is risk of fire or failure of product.
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.
4 Concealed Duct Air Conditioner
Safety Precautions
Do not plug or unplug the power
supply plug during operation.
• There is risk of fire or
electric shock.
Do not touch(operate) the
product with wet hands.
• There is risk of fire or
electrical shock.
Do not place a heater or other
appliances near the power cable.
• There is risk of fire and
electric shock.
Gasolin
Safety Precautions
Installation Manual 5
Do not allow water to run into
electric parts.
• It may cause There is risk of
fire, failure of the product, or
electric shock.
Do not use the product in a tightly
closed space for a long time.
• Oxygen deficiency could
occur.
When flammable gas leaks, turn off the
gas and open a window for ventilation
before turn the product on.
• Do not use the telephone or
turn switches on or off.
There
is risk of explosion or fire
If strange sounds, or small or
smoke comes from product. Turn
the breaker off or disconnect the
power supply cable.
• There is risk of electric
shock or fire.
Stop operation and close the window
in storm or hurricane. If possible,
remove the product from the window
before the hurricane arrives.
• There is risk of property
damage, failure of product,
or electric shock.
When the product is soaked
(flooded or submerged),
contact an Authorized Service
Center.
• There is risk of fire or
electric shock.
Be cautious that water could
not enter the product.
• There is risk of fire, electric
shock, or product damage.
Ventilate the product from time
to time when operating it
together with a stove, etc.
• There is risk of fire or
electric shock.
Turn the main power off when
cleaning or maintaining the
product.
• There is risk of electric
shock.
When the product is not 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 could step on
or fall onto the outdoor unit.
• This could result in personal injury and
product damage.
6 Concealed Duct Air Conditioner
Safety Precautions
■ Installation
CAUTION
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.
Do not install the product where the noise or hot air
from the outdoor unit could damage the
neighborhoods.
• It may cause a problem for your neighbors.
Use two or more people to 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. Corrosion,
particularly on the condenser and evaporator fins, could
cause product malfunction or inefficient 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.
■ Operation
90°
90°
Do not step on or put anyting on the product.
(outdoor units)
• There is risk of personal injury and failure of
product.
Do not insert hands or other objects through the
air inlet or outlet while the product is operated.
• There are sharp and moving parts that could
cause personal injury.
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 or
maintaining the product.
• Be careful and avoid personal injury.
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 explosion
Do not recharge or disassemble the batteries.
Do not dispose of 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.
Safety Precautions
Installation Manual 7
8 Concealed Duct Air Conditioner
Installation Parts Provided
Air filters
Air outlet vents
Air intake vents
Remote Controller
(Side)
(Rear)
Air intake vents
Air outlet vents
Piping
Drain hose
Connecting wire
Control cover
(Side)
(Rear)
Air outlet
vents
Air intake
vents
Connecting Wire
Drain Hose
Connection Pipe
Control Cover
Air intake
vents
Piping
Drain hose
Connecting
wire
Control cover
Air outlet vents
This symbol alerts you to the risk of electric shock.
This symbol alerts you to hazards that could cause harm to the
air conditioner.
This symbol indicates special notes.
NOTICE
Introduction
Symbols Used in this Manual
Features
Installation Manual 9
Installation of Indoor, Outdoor Unit
Installation of Indoor, Outdoor Unit
Indoor unit
Install the air conditioner in the location that
satisfies the following conditions.
• The place shall easily bear a load exceeding
four times the indoor unit’s weight.
• The place shall be able to inspect the unit as
the figure.
• The place where the unit shall be leveled.
• The place shall allow easy water
drainage.(Suitable dimension “H” is necessary
to get a slope to drain as figure.)
• The place shall easily connect with the
outdoor unit.
• The place where the unit is not affected by an
electrical noise.
• The place where air circulation in the room will
be good .
• There should not be any heat source or steam
near the unit
Outdoor unit
• If an awning is built over the unit to prevent
direct sunlight or rain exposure, be careful that
heat radiation from the condenser is not
restricted.
• There should not be any animals or plants
which could be affected by hot air discharged.
• Ensure the spaces indicated by arrows from
the wall, ceiling, fence or other obstacles.
• Take the weight of the air conditioner into
account and select a place where noise and
vibration are minimum.
• Select a place where the warm air and noise
from the air conditioner do not disturb
neighbors.
Selection of the best location
H
600600
Top view
(unit: mm)
Front view
Front
Inspection hole
(600X600)
Control box
1000
Fence or
obstacles
More than
30cm
Fence or
obstacles
More than
90cm
Fence or
obstacles
Sunroof
Fence or
Fence or
obstacles
obstacles
More than
30cm
More than
70cm
More than 120cm
More than
90cm
More than 90cm
10 Concealed Duct Air Conditioner
Installation of Indoor, Outdoor Unit
Piping length and the elevation
Outdoor unit
Indoor unit
A
B
Outdoor unit
Indoor unit
A
B
A
Oil trap
Outdoor unit
Indoor unit
B
CAUTION:
• If 60k Model is installed at a distance of 15m, 600g of refrigerant
should be added (15-7.5) x 80g = 600g
• Capacity is based on standard length and maximun allowance length
is on the basis of reliability.
• Improper refrigerant charge may result in abnormal cycle.
• Oil trap should be installed every 10 meters.
Gas Liquid Standard Max. Standard Max
.
30k Btu/h 15.88(5/8") 6.35(1/4") 7.5 50 5 30 45
36k Btu/h(1Ø)
15.88(5/8") 6.35(1/4") 7.5 50 5 30 60
36k Btu/h(3Ø)
15.88(5/8") 6.35(1/4") 7.5 50 5 30 40
42k Btu/h 19.05(3/4") 9.52(3/8") 7.5 50 5 30 60
48k Btu/h 19.05(3/4") 9.52(3/8") 7.5 50 5 30 70
60k Btu/h 19.05(3/4") 9.52(3/8") 7.5 50 5 30 80
Capacity
Pipe Size
Length A(m) Elevation B(m)
*Additional
(Diameter:Ø)
refrigerant(g/m)
Installation Manual 11
Installation of Indoor, Outdoor Unit
Indoor unit installation
Installation of Unit
Install the unit above the ceiling correctly.
• Apply a joint-canvas between the unit and duct
to absorb unnecessary vibration.
• Apply a filter Accessory at air return hole.
• Install the unit leaning to a drainage hole side
as a figure for easy water drainage.
• A place where the unit will be leveled and that
can support the weight of the unit.
• A place where the unit can withstand its
vibration.
• A place where service can be easily
performed.
CASE 1
POSITION OF SUSPENSION BOLT
Drainage hole
A
B
C
1-3 mm
D
(G)
H
I
EF
CASE 2
POSITION OF CONSOLE BOLT
(Unit:mm)
1282 1230 477 56 590 30 120 1006 294
48k/60k Btu/h
1232 1180 355 45.5 450 30 87 830 186
30k/36k/42k Btu/h
Dimension
Capacity
ABCDE F(G)HI
M10 Nut
M10 SP. washer
M10 washer
M10 washer
M10 SP. washer
M10 Nut
X 4
X 4
X 4
X 4
X 4
X 4
(Local
supply)
(Local
supply)
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