LG LS-J0761NL_NM_NN / LS-J0962NL_NM_NN / LS-L1261NL_NM_NN Service Manual ▷ View online
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.
the weight of the unit.
Incorrect connection and fixing 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 cover 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.
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 falling, etc.
due to a fire, electric shock, the unit 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 an exclusive circuit.
manual and be sure to use an exclusive circuit.
CAUTION
If there is a defect in the drainage/piping work,
water could leak from the unit and household
goods could get wet and be damaged.
water could leak from the unit and household
goods could get 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 an
inflammable gas leaks.
inflammable gas leaks.
A90031D¿
95.1.26
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3
4
7K
3/8" 1/4"
4 or 5
7
15
20
9K, 12K
1/2" 1/4"
4 or 5
7
15
20
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.
unit.
■
Select a place where there are no
obstacles in front of the unit.
obstacles in front of the unit.
■
Make sure that condensation drainage
can be conveniently routed away.
can be conveniently routed away.
■
Do not install near a doorway.
■
Ensure that the space around the left and
right of the unit is more than 5cm. The
unit should be installed as high on the
wall as possible, allowing a minimum of
5cm from ceiling.
right of the unit is more than 5cm. The
unit should be installed as high on the
wall as possible, allowing a minimum of
5cm from ceiling.
■
Use a stud finder to locate studs to
prevent unnecessary damage to the wall.
prevent 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.
Consult local codes regarding rooftop mounting.
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.
Piping length and elevation
More than 5cm
More than 5cm
More than 2.3m
More than 5cm
More than 10cm
More than 10cm
More
than 60cm
than 60cm
More than 60cm
More than 70cm
Pipe Size
Capacity
(Btu/h)
GAS LIQUID
Max.
length
A
(m)
Additional
Refrigerant
(g/m)
Max.
Elevation
B
(m)
Standard
Length
(m)
* Both gas and liquid interconnecting pipes must be insulated
as a pair, but it is not necessary to individually insulate them.
In case more than 5m
A
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
A
Oil trap
Outdoor unit
Indoor unit
B
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
CAUTION
A90031D¿
95.1.26
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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
four type A screws. If mounting the unit on a
concrete wall, use anchor bolts.
four 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.
■
For right rear piping and left rear piping, draw a
line in the direction of the arrow marked "C". The
meeting point of the two lines is the center of the
hole.
line in the direction of the arrow marked "C". The
meeting point of the two lines is the center of the
hole.
5-7mm
(0.2~0.3")
Indoor
WALL
Outdoor
Installation Plate
Marking-off line
Thread
Weight
Type "A" screw
A
B
Hole center
Right rear piping
Left rear piping
ø70mm
ø70mm
50mm
20mm
20mm
80mm
■
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
• The position of the center of the hole.
C
C
C
C
Left holecore position
Right holecore position
9K Btu
A,B
A,B,C
C
D
D
A,B,D
C
A
B,D
C
ø70mm
Left rear piping
Right rear piping
Hole Center
Installation plate
12K Btu
A90031D¿
95.1.26
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6
FLARING WORK AND CONNECTION OF PIPING
Flaring work
Main cause for gas leakage is due to defect in
flaring work. Carry out correct flaring work in the
following procedure.
flaring work. Carry out correct flaring work in the
following procedure.
Cut the pipes and the cable.
■
Use the piping kit accessory or the pipes
purchased locally.
purchased locally.
■
Measure the distance between the indoor
and the outdoor unit.
and the outdoor unit.
■
Cut the pipes a little longer than measured
distance.
distance.
■
Cut the cable 1.5m longer than the pipe
length.
length.
Burrs removal
■
Completely remove all burrs from the cut
cross section of pipe/tube.
cross section of pipe/tube.
■
Put the end of the copper tube/pipe in a
downward direction as you remove burrs in
order to avoid dropping burrs into the tubing.
downward direction as you remove burrs in
order to avoid dropping burrs into the tubing.
A
B
Putting nut on
■
Remove flare nuts attached to indoor and
outdoor unit, then put them on pipe/tube
having completed burr removal.
(not possible to put them on after flaring
work)
outdoor unit, then put them on pipe/tube
having completed burr removal.
(not possible to put them on after flaring
work)
C
Copper
pipe
90
°
Slanted Uneven Rough
Bar
Copper pipe
Clamp handle
Red arrow mark
Cone
Yoke
Handle
Bar
"A"
Pipe
Reamer
Point down
Flaring work
■
Carry out flaring work using flaring tool as shown
below.
below.
Firmly hold copper pipe in a die in the dimension
shown in the table above.
shown in the table above.
D
Check
■
Compare the flared work with figure below.
■
If flare is noted to be defective, cut off the flared
section and do flaring work again.
section and do flaring work again.
E
Outside diameter
A
mm
mm
inch
1/4
1/2
3/8
ø6.35
ø12.7
ø9.52
0~0.5
0~0.5
0~0.5
Flare nut
Copper tube
Inclined
Inside is shiny without scratches
Smooth all round
Even length
all round
Surface
damaged
Cracked Uneven
thickness
= Improper flaring =
A90031D¿
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