LG LS-J0761NL_NM_NN / LS-J0962NL_NM_NN / LS-L1261NL_NM_NN Service Manual ▷ View online
7
Connection of piping
--Indoor
--Indoor
■
Preparing the indoor unit's piping and drain
hose for installation through the wall.
hose for installation through the wall.
■
Remove the plastic tubing retainer(see
illustration below) and pull the tubing and
drain hose away from chassis.
illustration below) and pull the tubing and
drain hose away from chassis.
■
Replace the plastic tubing holder in the
original position.
original position.
Route the indoor tubing and the drain hose
in the direction of rear left.
in the direction of rear left.
Insert the connecting cable into the indoor
unit from the outdoor unit through the
piping hole.
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
connection later.
connection later.
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
moving 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
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).
against the installation plate until the hooks engage
into their slots(clicking sound).
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.
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.
D
Connecting the pipings to the indoor unit and
drain hose to drain pipe.
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.
E
A
B
C
NOTE: If the drain hose is routed inside the room,
insulate the hose with an insulation material
insulate the hose with an insulation material
*
so that
dripping from "sweating"(condensation) will not damage
furniture or floors.
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
Drain hose
Connecting
cable
cable
Loop
Gas side
piping
piping
Liquid side
piping
piping
Drain hose
Drain hose
Connecting
cable
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.
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.
A90031D¿
95.1.26
5:02
AM
˘
`
7
8
Wrap the insulation material around the
connecting portion.
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.
the indoor unit pipe insulation material. Bind them
together with vinyl tape so that there is no gap.
F
Route the indoor tubing and the drain hose to
the required piping hole position.
the required piping hole position.
A
Insert the piping, drain hose and the connecting
cable into the piping hole.
cable into the piping hole.
B
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.
7K
3/8"[4.2kg.m]
1/4"[1.8kg.m]
9K, 12K
1/2"[5.5kg.m]
1/4"[1.8kg.m]
Pipe Size[Torque]
Capacity
(Btu/h)
GAS
LIQUID
■
Wrap the area which accommodates the rear
piping housing section with vinyl tape.
piping housing section with vinyl tape.
■
Bundle the piping and drain hose together by
wrapping them with vinyl tape over the range
within which they fit into the rear piping housing
section.
wrapping them with vinyl tape over the range
within which they fit into the rear piping housing
section.
For right rear piping
Wrap with vinyl tape
Drain hose
Pipe
Vinyl tape(wide)
A90031D¿
95.1.26
5:03
AM
˘
`
8
9
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 later.
connection later.
Tape the drain hose and the connecting cable.
• Connecting cable
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.
C
D
E
Installation plate
Spacer
Indoor unit
8cm
Connecting the pipings to the indoor unit and
the drain hose to drain pipe.
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.
F
Wrap the insulation material around the
connecting portion.
connecting 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.
indoor unit pipe heat insulation material. Bind them
together with vinyl tape so that there is no gap.
G
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 vinly tape.
piping housing section with vinly tape.
7K
3/8"[4.2kg.m]
1/4"[1.8kg.m]
9K, 12K
1/2"[5.5kg.m]
1/4"[1.8kg.m]
Pipe Size[Torque]
Capacity
(Btu/h)
GAS
LIQUID
A90031D¿
95.1.26
5:03
AM
˘
`
9
9
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 later.
connection later.
Tape the drain hose and the connecting cable.
• Connecting cable
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.
C
D
E
Installation plate
Spacer
Indoor unit
8cm
Connecting the pipings to the indoor unit and
the drain hose to drain pipe.
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.
F
Wrap the insulation material around the
connecting portion.
connecting 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.
indoor unit pipe heat insulation material. Bind them
together with vinyl tape so that there is no gap.
G
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 vinly tape.
piping housing section with vinly tape.
7K
3/8"[4.2kg.m]
1/4"[1.8kg.m]
9K, 12K
1/2"[5.5kg.m]
1/4"[1.8kg.m]
Pipe Size[Torque]
Capacity
(Btu/h)
GAS
LIQUID
A90031D¿
95.1.26
5:03
AM
˘
`
9
