LG AS-H126U / LS-C126U / LS-H126U Service Manual ▷ View online
INSTALLATION OVERVIEW
2
The following should be always
observed for safety....................3
observed for safety....................3
Installation of indoor, outdoor
unit................................................4
unit................................................4
Flaring work and connection of
piping ...........................................6
piping ...........................................6
Connection of piping(Indoor) ......7
For right rear piping
For left rear piping
Connection of piping(Outdoor)
For right rear piping
For left rear piping
Connection of piping(Outdoor)
................................................10
Connecting the cable between
indoor unit and outdoor unit ......
indoor unit and outdoor unit ......
....................................................11
Checking the drainage and
Forming the piping ..................13
Forming the piping ..................13
Air purging ...............................14
Test running .............................16
❏
Installation plate
❏
Four type "A" screws
❏
Connecting cable
❏
Pipes: Gas side .........3/8", 1/2", 5/8", 3/4"
Liquid side ......1/4", 3/8"
(Refer to page 4)
(Refer to page 4)
❏
Insulation materials
❏
Additional drain pipe
(Outer Diameter.........15.5mm)
(Outer Diameter.........15.5mm)
❏
Level gauge
❏
Screw driver
❏
Electric drill
❏
Hole core drill(ø70mm)
❏
Flaring tool set
❏
Specified torque wrenches
1.8kg.m, 4.2kg.m, 5.5kg.m, 6.6kg.m
1.8kg.m, 4.2kg.m, 5.5kg.m, 6.6kg.m
(different depending on model No.)
(Refer to page 10)
(Refer to page 10)
❏
Spanner......................Half union
❏
A glass of water
❏
Screw driver
❏
Hexagonal wrench(4mm)
❏
Gas-leak detector
❏
Vacuum pump
❏
Gauge manifold
❏
Owner's manual
❏
Thermometer
❏
Holder Remote Control
Installation
Requirements
Required Parts
Required Tools
ENGLISH
THE FOLLOWING SHOULD BE ALWAYS OBSERVED FOR SAFETY
3
■
Be sure to read "THE FOLLOWING SHOULD BE ALWAYS OBSERVED FOR SAFETY" before installing the air
conditioner.
conditioner.
■
Be sure to observe the cautions specified here as they include important items related to safety.
■
The indications and meanings are as follows.
■
After reading this instructions, be sure to keep it together with the owner's manual in a handy place on the
customer's site.
customer's site.
WARNING
: Could lead to death, serious injury, etc.
CAUTION
: Could lead to serious injury in particular environments when operated
incorrectly.
WARNING
Incorrect installation could cause injury due to fire,
electric shock, the unit falling or leakage of water.
Consult the dealer from whom you purchased the
unit or special installer.
electric shock, the unit falling or leakage of water.
Consult the dealer from whom you purchased the
unit or special installer.
Do not install it yourself (customer).
When installed in an insufficiently strong place,
the unit could fall causing injury.
the unit could fall causing injury.
Install the unit securely in a place which can bear
the weight of the unit's.
the weight of the unit's.
Incorrect connection and attachment could cause fire.
Use the specified wires to connect the indoor and
outdoor units securely and attach the wires firmly
to the terminal board connecting sections so the
stress of the wires is not applied to the sections.
outdoor units securely and attach the wires firmly
to the terminal board connecting sections so the
stress of the wires is not applied to the sections.
If the electrical part covers of the indoor unit
and/or 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.
and/or 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.
Attach the electrical part cover to the indoor unit
and the service panel to the outdoor unit securely.
and the service panel to the outdoor unit securely.
The use of defective parts could cause an injury
due to a fire, electric shock, the unit's falling, etc.
due to a fire, electric shock, the unit's falling, etc.
Be sure to use the part provided or specified parts
for the installation work.
for the installation work.
Check that the refrigerant gas does not leak after
installation is completed.
installation is completed.
Incorrect installation could cause a personal
injury due to fire, electric shock, the unit falling
or leakage of water.
injury due to fire, electric shock, the unit falling
or leakage of water.
Perform the installation securely referring to the
installation instruction.
installation instruction.
If the capacity of the power circuit is insufficient
or there is incomplete electrical work, it could
result in a fire or an electric shock.
or there is incomplete electrical work, it could
result in a fire or an electric shock.
Perform electrical work according to the installation
manual and be sure to use a dedicated circuit.
manual and be sure to use a dedicated circuit.
CAUTION
If there is a defect in the drainage/piping work,
water could leak from the unit and household
goods could come wet and be damaged.
water could leak from the unit and household
goods could come wet and be damaged.
Perform the drainage/piping work according
to the installation instruction.
to the installation instruction.
If gas leaks and accumulates in the area
surrounding the unit, it could cause an explosion.
surrounding the unit, it could cause an explosion.
Do not install the unit in a place where a
flammable gas leaks.
flammable gas leaks.
4
INSTALLATION OF INDOOR, OUTDOOR UNIT
Read completely, then follow step by step.
Select the best location
Indoor unit
■
Do not have any heat or steam near the unit.
■
Select a place where there are no obstacles
in front of the unit.
in front of the unit.
■
Make sure that condensation drainage can be
conveniently routed away.
Do not install near a doorway.
conveniently routed away.
Do not install near a doorway.
■
Ensure that the space around the left and right
of the unit is more than "A". The unit should be
installed as high on the wall as possible,
allowing a minimum of "B" from ceiling.
of the unit is more than "A". The unit should be
installed as high on the wall as possible,
allowing a minimum of "B" from ceiling.
■
Use a stud finder to locate studs to prevent
unnecessary damage to the wall.
unnecessary damage to the wall.
Outdoor unit
■
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.
prevent direct sunlight or rain exposure,
make sure that heat radiation from the
condenser is not restricted.
■
Ensure that the space around the back
and sides is more than 10cm. The front of
the unit should have more than 70cm of
space.
and sides is more than 10cm. The front of
the unit should have more than 70cm of
space.
■
Do not place animals and plants in the
path of the warm air.
path of the warm air.
■
Take the air conditioner weight into
account and select a place where noise
and vibration are minimum.
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.
noise from the air conditioner do not
disturb neighbors.
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.
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.
Piping length and elevation
More than "A"
More than "B"
More than 2.3m
More than "B"
More than 10cm
More than 10cm
More
than 60cm
than 60cm
More than 60cm
More than 70cm
If case more than 5m
A
C
B
• Capacity is based on standard length and maximum
allowance length is on the basis of reliability.
• Oil trap should be installed every 5~7 meters.
Outdoor unit
Indoor unit
A
B
Outdoor unit
Indoor unit
A
B
A
Oil trap
Outdoor unit
Indoor unit
B
CAUTION
Install the indoor unit on the wall where the height
from the floors more than 2.3 meters.
from the floors more than 2.3 meters.
CAUTION
Grade
Clearance(cm)
A
B
7K~14K
10
5
7k~14k
3/8"(Ø9.52) 1/4"(Ø6.35)
4 or 7.5
7
15
20
1/2"(Ø12.7) 1/4"(Ø6.35)
4 or 7.5
7
15
20
Pipe Size
Capacity
(Btu/h)
GAS
LIQUID
Max.
Length
A
(m)
Additional
Refrigerant
(g/m)
Max.
Elevation
B
(m)
Standard
Length
(m)
ENGLISH
5
How to fix installation plate
The wall you select should be strong and solid
enough to prevent vibration
enough to prevent vibration
Mount the installation plate on the wall with
6 type "A" screws. If mounting the unit on a
concrete wall, use anchor bolts.
6 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.
aligning the centerline using a level.
Measure the wall and mark the centerline. It
is also important to use caution concerning
the location of the installation plate-routing of
the wiring to power outlets is through the
walls typically. Drilling the hole through the
wall for piping connections must be done
safely.
is also important to use caution concerning
the location of the installation plate-routing of
the wiring to power outlets is through the
walls typically. Drilling the hole through the
wall for piping connections must be done
safely.
5-7mm
(3/16"~5/16")
Indoor
WALL
Outdoor
Installation Plate
Type "A" screw
A
B
■
Drill the piping hole with a ø70mm hole core
drill. Drill the piping hole at either the right or
the left with the hole slightly slanted to the
outdoor side.
drill. Drill the piping hole at either the right or
the left with the hole slightly slanted to the
outdoor side.
Drill a hole in the wall
Installation plate
Ø70mm
Left rear piping
Right rear piping
C
D
B
A
Ø70mm
Left rear piping
Right rear piping
B
A
D
C
Installation plate
A
B
C
D
SU
92
44
67
44
(11k~14k)
SZ
35
33
156
33
(7k~9k)
CHASSIS
(Grade)
Distance (mm)
(SU)
(SZ)
Click on the first or last page to see other AS-H126U / LS-C126U / LS-H126U service manuals if exist.