LG LS-K1863HL_HM_HN / LS-K1864HL_HM_HN_BL_EL / LS-K1867HL_HM_HN / LS-K2423HL_HM_HN / LS-K2424HL_HM_HN / LS-K2465HL_HM_HN / LS-K2466HL_HM_HN_BL_EL / LS-K2665HL_HM_HN / LS-K2666HL_HM_HN_BL_EL / LS-K2669HL_HM_HN Service Manual ▷ View online
- 26 -
2) Connection of piping-Indoor
■
Preparing the indoor unit's piping and drain hose
for installation through the wall.
for installation through the wall.
■
Remove the plastic tubing retainer(see illustra-
tion below) and pull the tubing and drain hose
away from chassis.
tion below) and pull the tubing and drain hose
away from chassis.
■
Replace the plastic tubing holder in the original
position.
position.
1. Route the indoor tubing and the drain hose in the
direction of rear left.
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 con-
nection later.
nection later.
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 installation plate.) Ensure that the hooks are
properly seated on the installation plate by mov-
ing it left and right.
installation plate.(Engage the two hooks of the
rear top of the indoor unit with the upper edge of
the installation plate.) Ensure that the hooks are
properly seated on the installation plate by mov-
ing 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).
installation plate until the hooks engage into their
slots(clicking sound).
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.
5. Connecting the pipings to the indoor unit and
drain hose to drain pipe.
■
Align the center of the pipings and sufficiently
tighten the flare nut by hand.
tighten the flare nut by hand.
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.
"sweating"(condensation) will not damage furniture or
floors.
*Foamed polyethylene or equivalent is recommended.
To remove the holder,
press the bottom of
chassis near the holder
upward and pull the tab
out of its hole.
press the bottom of
chassis near the holder
upward and pull the tab
out of its hole.
Tubing holder
Pull
Press
2
1
Connecting
cable
cable
Loop
Gas side
piping
piping
Liquid side
piping
piping
Drain hose
Drain hose
Connecting
cable
Drain hose
Indoor unit tubing
Flare nut
Pipings
For left 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.
the remaining parts must be
removed clearly so as not to
damage the piping and drain
hose, especially power cord
and connecting cable.
- 27 -
6. Wrap the insulation material around the connect-
ing 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.
and the indoor unit pipe insulation material. Bind
them together with vinyl tape so that there is no
gap.
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.
Plastic bands
Insulation material
Drain pipe
Connecting cable
Vinyl tape(narrow)
Connection
pipe
pipe
Connecting cable
Vinyl tape
(wide)
(wide)
Wrap with vinyl tape
Indoor
unit pipe
unit pipe
Pipe
Torque wrench
Indoor unit tubing
Spanner (fixed)
Connection pipe
Flare nut
Vinyl tape(narrow)
Adhesive
Drain pipe
Indoor unit drain hose
■
When extending the drain hose at the indoor unit,
install the drain pipe.
install the drain pipe.
■
Tighten the flare nut with a wrench.
18K, 24K, 26K
1/2"[5.5kg.m]
1/4"[1.8kg.m]
5/8"[6.6kg.m]
3/8"[4.2kg.m]
Pipe Size[Torque]
Capacity
(Btu/h)
GAS
LIQUID
■
Wrap the area which accommodates the rear pip-
ing housing section with vinyl tape.
ing housing section with vinyl tape.
■
Bundle the piping and drain hose together by
wrapping them with vinyl tape over the range with-
in which they fit into the rear piping housing sec-
tion.
wrapping them with vinyl tape over the range with-
in which they fit into the rear piping housing sec-
tion.
For right rear piping
Wrap with vinyl tape
Drain hose
Pipe
Vinyl tape(wide)
- 28 -
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 con-
nection later.
nection 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.
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.
the installation plate and separate the bottom of
the indoor unit from the wall.
Installation plate
Spacer
Indoor unit
8cm
6. Connecting the pipings to the indoor unit and the
drain hose to drain pipe.
■
Align the center of the pipings and sufficiently
tighten the flare nut by hand.
tighten the flare nut by hand.
■
Tighten the flare nut with a wrench.
7. Wrap the insulation material around the connect-
ing 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.
the indoor unit pipe heat insulation material. Bind
them together with vinyl tape so that there is no
gap.
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
Indoor unit tubing
Flare nut
Pipings
Torque wrench
Indoor unit tubing
Spanner (fixed)
Connection pipe
Flare nut
Vinyl tape
Adhesive
Drain hose
Indoor unit drain hose
(narrow)
■
When extending the drain hose at the indoor unit,
install the drain pipe.
install the drain pipe.
■
Wrap the area which accommodates the rear piping housing
section with vinyl tape.
section with vinyl tape.
18K, 24K, 26K
1/2"[5.5kg.m]
1/4"[1.8kg.m]
5/8"[6.6kg.m]
3/8"[4.2kg.m]
Pipe Size[Torque]
Capacity
(Btu/h)
GAS
LIQUID
- 29 -
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.
ensure the direction for tightening follows the
arrow on the wrench.
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
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.
and push the bottom of tubing holder to be
engaged at the bottom of chassis.
10. Indoor unit installation
■
Remove the spacer.
■
Ensure that the hooks are properly seated on the
installation plate by moving it left and right.
installation plate by moving it left and right.
Drain hose
Connecting
cable
Piping for
passage through
piping hole
passage through
piping hole
Tubing holder
Hook
1
Push
2
Drain hose
Vinyl tape(narrow)
Pipe
Wrap with
vinyl tape(wide)
vinyl tape(wide)
■
Bundle the piping and drain hose together by
wrapping them with cloth tape over the range
within which they fit into the rear piping housing
section.
wrapping them with cloth tape over the range
within which they fit into the rear piping housing
section.
Press the lower left and right sides of the unit against the
installation plate until the hooks engage into their
slots(clicking sound).
installation plate until the hooks engage into their
slots(clicking sound).
18K, 24K, 26K
1/2"[5.5kg.m]
1/4"[1.8kg.m]
5/8"[6.6kg.m]
3/8"[4.2kg.m]
Pipe Size[Torque]
Capacity
(Btu/h)
GAS
LIQUID
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