LG LS-M3060HL / LS-M3060CL / LS-M3061HL / LS-M3061CL / LS-M3064HL / LS-M3064CL / LS-M3221HL / LS-M3221CL / LS-N3660HL / LS-N3660CL / LS-N3661HL / LS-N3661CL / LS-N3821HL / LS-N3821CL Service Manual ▷ View online
- 22 -
Installation
Read completely, then follow step by step.
1. Installation of Indoor, Outdoor unit
1) Select the best location
1. 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.
front of the unit.
■
Make sure that condensation drainage can be
conveniently routed away.
conveniently routed away.
■
Do not install near a doorway.
■
Ensure that the space around the left and right of
the unit is more than 30cm. The unit should be
installed as high on the wall as possible, allowing
a minimum of 12cm from ceiling.
the unit is more than 30cm. The unit should be
installed as high on the wall as possible, allowing
a minimum of 12cm from ceiling.
■
Use a stud finder to locate studs to prevent
unnecessary damage to the wall.
unnecessary damage to the wall.
2. Outdoor unit
■
If an awning is built over the unit to prevent direct sun-
light or rain exposure, make sure that heat radiation
from the condenser is not restricted.
light 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.
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.
warm air.
■
Take the air conditioner weight into account and select
a place where noise and vibration are minimum.
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.
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 root structures or walls,
this may result in excessive noise and vibration, and
maybe also classed as non serviceable installation.
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 root structures or walls,
this may result in excessive noise and vibration, and
maybe also classed as non serviceable installation.
2) Piping length and elevation
More than 12cm
More than
30cm
More than
30cm
More than 2.3m
More than 10cm
More than 10cm
More
than 60cm
than 60cm
More than 60cm
More than 70cm
More than 10cm
More than 10cm
More
than 60cm
than 60cm
More than 60cm
More than 70cm
In case more than 5m
• 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
CAUTION
Install the indoor unit on the wall where the height
from the floors more than 2.3 meters.
A minimum pipe run of 7.5 meters is required to min-
imise vibration & excessive noise.
from the floors more than 2.3 meters.
A minimum pipe run of 7.5 meters is required to min-
imise vibration & excessive noise.
CAUTION
30k, 32k
5/8"
3/8"
7.5
15
30
30
36k, 38k
3/4"
3/8"
7.5
20
30
50
Pipe Size
Capacity
(Btu/h)
GAS
LIQUID
Max.
length
A
(m)
Additional
Refrigerant
(g/m)
Max.
Elevation
B
(m)
Standard
Length
(m)
30K, 32K
36K, 38K
- 31 -
3. Connecting the cable between
indoor unit and outdoor unit
1) Connect the cable to the Indoor unit.
■
Connect the cable to the indoor unit by connect-
ing the wires to the terminals on the control
board individually according to the outdoor unit
connection.(Ensure that the color of the wires of the
outdoor unit and the terminal No. are the same as
those of the indoor unit.)
ing the wires to the terminals on the control
board individually according to the outdoor unit
connection.(Ensure that the color of the wires of the
outdoor unit and the terminal No. are the same as
those of the indoor unit.)
RED
BLUE
BROWN
4(N)
Terminals on the indoor unit
3(L)
5
4(N)
Terminals on the outdoor unit
Color of Wires
POWER INPUT
Color of Wires
3(L)
2(N)
1(L)
5
G/Y
RED
BLUE
BROWN
G/Y
The power cord connected to the outdoor unit
should be complied with the following
specifications (Rubber insulation, type H05RN-F
approved by HAR or SAA).
should be complied with the following
specifications (Rubber insulation, type H05RN-F
approved by HAR or SAA).
The connecting cable connected to the indoor
and outdoor unit should be complied with the
following specifications (Rubber insulation, type
H07RN-F approved by HAR or SAA).
and outdoor unit should be complied with the
following specifications (Rubber insulation, type
H07RN-F approved by HAR or SAA).
CAUTION
8.5mm
20mm
GN/YL
NORMAL
CROSS-SECTIONAL
AREA 2.5mm
CROSS-SECTIONAL
AREA 2.5mm
2
8.5mm
20mm
GN/YL
NORMAL
CROSS-SECTIONAL
AREA 5.5mm
CROSS-SECTIONAL
AREA 5.5mm
2
20mm
GN/YL
NORMAL
CROSS-SECTIONAL
AREA 0.75mm
CROSS-SECTIONAL
AREA 0.75mm
2
7.5mm
30K, 32K
36K, 38K
If a power plug is not to be used,
provide a circuit breaker between
power source and the unit as
shown below.
provide a circuit breaker between
power source and the unit as
shown below.
CAUTION
Air
Conditioner
Main power source
Circuit Breaker
Use a circuit breaker
or time delay fuse.
Use a circuit breaker
or time delay fuse.
- 32 -
2) Connect the cable to the outdoor unit
1. Remove the control cover from the unit by loosen-
ing the screw.
Connect the wires to the terminals on the control
board individually.
Connect the wires to the terminals on the control
board individually.
2. Secure the cable onto the control board with the
cord clamp.
3. Refix the control cover to the original position with
the screw.
4. Use a recognized circuit breaker 30A (30k, 32k),
35A (36k, 38k) between the power source and the
unit. A disconnecting device to adequately discon-
nect all supply lines must be fitted.
unit. A disconnecting device to adequately discon-
nect all supply lines must be fitted.
Terminal block
Over 5mm
Cover control
Connecting cable
The power
connecting cable
connecting cable
Main terminal board
Control terminal board
Cover control
After the confirmation of the above conditions, prepare the wiring as follows:
1) Never fail to have an individual power circuit specifically for the air conditioner. As for the method
of wiring, be guided by the circuit diagram posted on the inside of control cover.
2) The screw which fasten the wiring in the casing of electrical fittings are liable to come loose from
vibrations to which the unit is subjected during the course of transportation. Check them and make
sure that they are all tightly fastened. (If they are loose, it could cause burn-out of the wires.)
sure that they are all tightly fastened. (If they are loose, it could cause burn-out of the wires.)
3) Specification of power source.
4) Confirm that electrical capacity is sufficient.
5) See to that the starting voltage is maintained at more than 90 percent of the rated voltage marked
on the name plate.
6) Confirm that the cable thickness is as specified in the power source specification.
(Particularly note the relation between cable length and thickness. (Refer to page 28))
7) Always install an earth leakage circuit breaker in a wet or moist area.
8) The following would be caused by voltage drop.
• Vibration of a magnetic switch, which will damage the contact point, fuse breaking, disturbance of the nor-
mal function of the overload.
9) The means for disconnection from a power supply shall be incorporated in the fixed wiring and
have an air gap contact separation of at least 3mm in each active(phase) conductors.
CAUTION
Outdoor Unit
30K, 32K
36K, 38K
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1) Checking the drainage
1. Remove the right side panel.
2. Remove the lower panel by the arrow.
3. Remove the left side panel.
(Remove the two screws.)
4. To check the drainage.
■
Pour a glass of water on the drain pan.
■
Ensure the water flows through the drain hose of
the indoor unit without any leakage and goes out
the drain exit.
the indoor unit without any leakage and goes out
the drain exit.
5. Drain piping
■
The drain hose should point downward for easy
drain flow.
drain flow.
■
Do not make drain piping.
Right side panel
Downward slope
Do not raise
Accumulated
drain water
drain water
Tip of drain hose
dipped in water
dipped in water
Air
Waving
Water
leakage
leakage
Water
leakage
leakage
Ditch
Less than
50mm gap
50mm gap
Water
leakage
leakage
Lower panel
Left side panel
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