LG LS-D1862HL Service Manual ▷ View online
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3. Connecting Pipings and the cable to Outdoor unit
1) Connecting the pipings to the Outdoor
unit
1. Align the center of the pipings and sufficiently
tighten the flare nut with fingers.
2. Finally, tighten the flare nut with torque wrench
until the wrench clicks.
• When tightening the flare nut with torque wrench,
• When tightening the flare nut with torque wrench,
ensure the direction for tightening follows the
arrow on the wrench.
arrow on the wrench.
Outdoor unit
Gas side piping
(Bigger Dia.)
(Bigger Dia.)
Liquid side piping
(Smaller Dia.)
(Smaller Dia.)
Torque wrench
Pipe Size
Torque
Liquid Side(1/4")
1.8kg.m
Liquid Side(3/8")
4.2kg.m
Gas Side(1/2")
5.5kg.m
Gas Side(5/8")
6.6kg.m
2) Connection of the cable
1. Remove the cover control from the unit by loosening
the screw.
Connect the wires to the terminals on the control
board individually as the following.
Connect the wires to the terminals on the control
board individually as the following.
Outdoor unit
Terminal block
Connecting
cable
cable
Power connecting
cable
cable
Cover control
Over 5mm
Power supply
2. Secure the cable onto the control board with the
holder (clamper).
3. Refix the cover control to the original position with
the screw.
4. Use a recongnized circuit breaker 20A(18K, 24K)
between the power source and the unit. A discon-
nection device to adequately disconnect all supply
lines must be fitted.
nection device to adequately disconnect all supply
lines must be fitted.
Terminals on the outdoor unit
Terminals on the outdoor unit
Terminals on the outdoor unit
• 18K cooling only model
• 18K heat pump model
• 24K models
BROWN
BLUE
GN/YL
BROWN
BLUE
GN/YL
BROWN BLUE
GN/YL BROWN
BROWN BLUE
GN/YL BROWN
RED
BLACK WHITE
RED
BLACK WHITE
Terminals on the indoor unit
Terminals on the indoor unit
Terminals on the indoor unit
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1) Checking the Drainage
1. Remove the Grille from the cabinet.
• Set the up-and-down air direction louver to open
position (horizontally) by finger pressure.
• Remove 3 screws.
• To remove the Grille, pull lower the left and right
side of the grille toward you (slightly tilted) and lift
it straight upward (Four tabs on the top inside
edge of chassis are clear of their slots).
it straight upward (Four tabs on the top inside
edge of chassis are clear of their slots).
2. Check the drainage.
• Pour a glass of water on the evaporator.
• Ensure if water flows drain hose of indoor unit
without any leakage.
4. Checking the Drainage and Connecting the cable to Indoor unit
Grille
Chassis
Screw(3places)
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2) Connect the cable to the indoor unit
1. Connect the wires to the terminals on the
control board individually according to the
outdoor unit connection.
outdoor unit connection.
• Ensure that the color of the wires of outdoor
unit and the terminal No. are the same as
those of indoor unit respectively.
those of indoor unit respectively.
Connecting
cable
cable
Power connecting cable
18K heat pump model
2. Attach the Grille onto the cabinet.
• Grasp lower the left and right side of the Grille
and engage four tabs on the top inside edge
of the chassis.
of the chassis.
• Press the Grille toward the chassis until it will
be back into place.
Power supply
Terminals on the outdoor unit
Terminals on the outdoor unit
Terminals on the outdoor unit
• 18K cooling only model
• 18K heat pump model
• 24K models
BROWN
BLUE
GN/YL
BROWN
BLUE
GN/YL
BROWN BLUE
GN/YL BROWN
BROWN BLUE
GN/YL BROWN
RED
BLACK WHITE
RED
BLACK WHITE
Terminals on the indoor unit
Terminals on the indoor unit
Terminals on the indoor unit
24K models
3) Form the pipings
1. Wrap the connecting portion of indoor unit with
the Insulation material and secure it with two
Plastic Bands.(for the right pipings)
Plastic Bands.(for the right pipings)
• If you want to connect an additional drain hose,
the end of the drain-outlet should keep distance
from the ground.(Do not dip it into water, and fix it
on the wall to avoid swinging in the wind.)
from the ground.(Do not dip it into water, and fix it
on the wall to avoid swinging in the wind.)
• Connecting cable
2. Tape the Pipings, drain hose and Connecting
Cable from down to up.
3. Form the pipings gathered by taping along the
exterior wall and fix it onto the wall by saddle or
equivalent.
equivalent.
2. Tape the Pipings and Connecting cable from
down to up.
3. Form the pipings gathered by taping along the
exterior wall, and make the trap prevent water
from entering into the room.
from entering into the room.
4. Fix the pipings onto the wall by saddle or
equivalent.
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In case of the Outdoor unit being installed
below position of the Indoor unit.
below position of the Indoor unit.
In case of the Outdoor unit being installed
above position of the Indoor unit.
above position of the Indoor unit.
Seal a small opening
around the pipings with
gum type sealer.
around the pipings with
gum type sealer.
Taping
Pipings
Connecting cable
Power supply cord
Plastic
band
•
Trap is required to prevent water from enter-
ing into electrical parts.
ing into electrical parts.
Seal a small opening
around the pipings
with gum type sealer.
around the pipings
with gum type sealer.
Trap
Drain hose
18K
Cooling Model
Heat Pump Model
24K
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