LG LS-R126ABG / LS-R126ABL / LS-R126AHG_AEL / LS-R126BBG_RBG / LS-R126CBG_FBG / LS-R126CEL_EEL / S12LHP Service Manual ▷ View online
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2) Connection of piping Indoor
• Preparing the indoor unit's piping and drain hose for
installation through the wall.
• Remove the plastic tubing retainer(see illustration
below) and pull the tubing and drain hose away from
chassis.
chassis.
• Replace the plastic tubing holder in the original posi-
tion.
1. Route the indoor tubing and the drain hose in the
direction of rear right.
2. Insert the connecting cable into the indoor unit
from the outdoor unit through the piping hole.
• Do not connect the cable to the indoor unit.
• Make a small loop with the cable for easy
• Make a small loop with the cable for easy
connection later.
3. Tape the tubing, drain hose, and the connecting
cable. Be sure that the drain hose is located at the
lowest side of the bundle. Locating at the upper
side can cause drain pan to overflow inside the
unit.
lowest side of the bundle. Locating at the upper
side can cause drain pan to overflow inside the
unit.
NOTE: If the drain hose is routed inside the room,
insulate the hose with an insulation material* so that
dripping from "sweating"(condensation) will not damage
furniture or floors.
*Foamed polyethylene or equivalent is recommended.
insulate the hose with an insulation material* so that
dripping from "sweating"(condensation) will not damage
furniture or floors.
*Foamed polyethylene or equivalent is recommended.
4. Indoor unit installation
• Hook the indoor unit onto the upper portion of the
installation plate.(Engage the two hooks of the rear
top of the indoor unit with the upper edge of the instal-
lation plate.) Ensure that the hooks are properly seat-
ed on the installation plate by moving it left and right.
top of the indoor unit with the upper edge of the instal-
lation plate.) Ensure that the hooks are properly seat-
ed on the installation plate by moving it left and right.
Press the lower left and right sides of the unit against
the installation plate until the hooks engage into their
slots(clicking sound).
the installation plate until the hooks engage into their
slots(clicking sound).
4. Connecting the pipings to the indoor unit and drain
hose to drain pipe.
• Align the center of the pipes and sufficiently tighten
the flare nut by hand.
For right rear piping
CAUTION
When install, make sure
that the remaining parts
must be removed clearly
so as not to damage the
piping and drain hose,
especially power cord
and connecting cable.
that the remaining parts
must be removed clearly
so as not to damage the
piping and drain hose,
especially power cord
and connecting cable.
Tubing holder
Connecting
cable
cable
Loop
Gas side
piping
piping
Liquid side
piping
piping
Drain hose
Drain hose
Connecting
cable
Indoor unit tubing
Flare nut
Pipes
Drain hose
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• Tighten the flare nut with a wrench.
• When extending the drain hose at the indoor unit,
install the drain pipe.
5. Wrap the insulation material around the connecting
portion.
• Overlap the connection pipe insulation material and
the indoor unit pipe insulation material. Bind them
together with vinyl tape so that there is no gap.
together with vinyl tape so that there is no gap.
• Wrap the area which accommodates the rear piping
housing section with vinyl tape.
• Bundle the piping and drain hose together by wrap-
ping them with vinyl tape for enough to cover where
they fit into the rear piping housing section.
they fit into the rear piping housing section.
1. Route the indoor tubing and the drain hose to the
required piping hole position.
2. Insert the piping, drain hose, and the connecting
cable into the piping hole.
For left rear piping
mm
inch
kg.m
Ø6.35
1/4
1.8
Ø9.52
3/8
4.2
Ø12.7
1/2
5.5
Ø15.88
5/8
6.6
Ø19.05
3/4
6.6
Outside diameter
Torque
Wrench
Indoor unit tubing
Open-end wrench (fixed)
Connection pipe
Flare nut
Vinyl tape(narrow)
Adhesive
Drain pipe
Indoor unit drain hose
Plastic bands
Insulation material
Vinyl tape(narrow)
Connection
pipe
pipe
Connecting cable
Vinyl tape
(wide)
(wide)
Wrap with vinyl tape
Indoor
unit pipe
unit pipe
Pipe
Wrap with vinyl tape
Drain hose
Pipe
Vinyl tape(wide)
Drain pipe
Connecting cable
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3. Insert the connecting cable into the indoor unit.
• Don't connect the cable to the indoor unit.
• Make a small loop with the cable for easy connection
• Make a small loop with the cable for easy connection
later.
4. Tape the drain hose and the connecting cable.
• Connecting cable
5. Indoor unit installation
• Hang the indoor unit from the hooks at the top of the
installation plate.
• Insert the spacer etc. between the indoor unit and the
installation plate and separate the bottom of the
indoor unit from the wall.
indoor unit from the wall.
6. Connecting the pipings to the indoor unit and the
drain hose to drain pipe.
• Align the center of the pipes and sufficiently tighten
the flare nut by hand.
• Tighten the flare nut with a wrench.
• When extending the drain hose at the indoor unit,
install the drain pipe.
7. Wrap the insulation material around the con-
necting portion.
• Overlap the connection pipe heat insulation and the
indoor unit pipe heat insulation material. Bind them
together with vinyl tape so that there is no gap.
together with vinyl tape so that there is no gap.
• Wrap the area which accommodates the rear piping
housing section with vinyl tape.
mm
inch
kg.m
Ø6.35
1/4
1.8
Ø9.52
3/8
4.2
Ø12.7
1/2
5.5
Ø15.88
5/8
6.6
Ø19.05
3/4
6.6
Outside diameter
Torque
Vinyl tape
Adhesive
Drain hose
Indoor unit drain hose
(narrow)
Plastic bands
Insulation material
Vinyl tape(narrow)
Connection
pipe
pipe
Connecting cable
Indoor
unit piping
unit piping
Pipe
Vinyl tape
(wide)
(wide)
Wrap with vinyl tape
Installation plate
Spacer
Indoor unit
8cm
Indoor unit tubing
Flare nut
Pipes
Wrench
Indoor unit tubing
Connection pipe
Flare nut
Open-end wrench (fixed)
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• Bundle the piping and drain hose together by wrap-
ping them with cloth tape over the range within which
they fit into the rear piping housing section.
they fit into the rear piping housing section.
8. Reroute the pipings and the drain hose across the
back of the chassis.
9. Set the pipings and the drain hose to the back of
the chassis with the tubing holder.
• Hook the edge of tubing holder to tap on chassis and
push the bottom of tubing holder to be engaged at the
bottom of chassis.
bottom of chassis.
10. Indoor unit installation
• Remove the spacer.
• Ensure that the hooks are properly seated on the
• Ensure that the hooks are properly seated on the
installation plate by moving it left and right.
Press the lower left and right sides of the unit against
the installation plate until the hooks engage into their
slots(clicking sound).
the installation plate until the hooks engage into their
slots(clicking sound).
3) Connection of the pipes-Outdoor
1. Align the center of the pipings and sufficiently
tighten the flare nut by hand.
2. Finally, tighten the flare nut with torque wrench
until the wrench clicks.
• When tightening the flare nut with torque wrench,
ensure the direction for tightening follows the arrow on
the wrench.
the wrench.
mm
inch
kg.m
Ø6.35
1/4
1.8
Ø9.52
3/8
4.2
Ø12.7
1/2
5.5
Ø15.88
5/8
6.6
Ø19.05
3/4
6.6
Outside diameter
Torque
Drain hose
Vinyl tape(narrow)
Pipe
Wrap with
vinyl tape(wide)
vinyl tape(wide)
Piping for
passage through
piping hole
passage through
piping hole
Outdoor unit
Liquid side piping
(Smaller diameter)
(Smaller diameter)
Gas side
piping
(Bigger
diameter)
piping
(Bigger
diameter)
Torque wrench
Outdoor unit
Gas side piping
(Bigger diameter)
(Bigger diameter)
Liquid side
piping
(Smaller
diameter)
piping
(Smaller
diameter)
Torque wrench
Tubing holder
Drain hose
Connecting
cable
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