LG LS-C322MLD0_MMB0_MMM0 / LS-H322MLD0_MMB0_MMM0 / LS-C366NLD0_NMM0 / LS-H366NLB0_NLD0_NMM0 / S36LHP Service Manual ▷ View online
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1) Flaring work
Main cause for gas leakage is due to defect in flar-
ing work. Carry out correct flaring work in the follow-
ing procedure.
ing work. Carry out correct flaring work in the follow-
ing procedure.
1. Cut the pipes and the cable.
■ Use the piping kit accessory or the pipes
purchased locally.
■ Measure the distance between the indoor and the
outdoor unit.
■ Cut the pipes a little longer than measured
distance.
■ Cut the cable 1.5m longer than the pipe length.
2. Burrs removal
■ Completely remove all burrs from the cut cross
section of pipe/tube.
■ Put the end of the copper tube/pipe in a down-
ward direction as you remove burrs in order to
avoid dropping burrs into the tubing.
avoid dropping burrs into the tubing.
3. Putting nut on
■ Remove flare nuts attached to indoor and outdoor
unit, then put them on pipe/tube having complet-
ed burr removal.
(not possible to put them on after flaring work)
ed burr removal.
(not possible to put them on after flaring work)
Copper
pipe
90
°
Slanted Uneven Rough
Bar
Copper pipe
Clamp handle
Red arrow mark
Cone
Yoke
Handle
Bar
"A"
Pipe
Reamer
Point down
4. Flaring work
■ Carry out flaring work using flaring tool as shown
below.
Firmly hold copper pipe in a die in the dimension
shown in the table above.
shown in the table above.
5. Check
■ Compare the flared work with figure below.
■ If flare is noted to be defective, cut off the flared
section and do flaring work again.
mm
inch
mm
ø6.35
1/4
0 ~ 0.5
ø9.52
3/8
0 ~ 0.5
ø12.7
1/2
0 ~ 0.5
ø15.88
5/8
0 ~ 1.0
ø19.05
3/4
1.0 ~ 1.3
Outside diameter
A
Flare nut
Copper tube
Inclined
Inside is shiny without scratches
Smooth all round
Even length
all round
Surface
damaged
Cracked Uneven
thickness
= Improper flaring =
2. Flaring Work and Connection of Piping
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2) Connection of piping-Indoor
1. Remove the 2 screws of right side panel.
2. Remove the front right side panel by the arrow.
■ The connector can be disconnected by pulling it
while pressing the connector's hook.
■ Remove the 1 screw for fixing lower panel.
3. Remove the lower panel by the arrow.
■ Take care not to scratch the wall and mat to
drop.
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
■ Make a small loop with the cable for easy
connection later.
Right side panel
Drain hose
Main PCB
Lower panel
Lower panel
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.
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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.
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"(condensa-
tion) will not damage furniture or floors.
*Foamed polyethylene or equivalent is rec-
so that dripping from "sweating"(condensa-
tion) will not damage furniture or floors.
*Foamed polyethylene or equivalent is rec-
ommended.
4. Indoor unit installation
■ Hook the indoor unit onto the upper portion of the
installation plate.(Engage the three hooks of the
rear top and rear lower of the indoor unit with the
upper edge and lower edge of the installation
plate.) Ensure that the hooks are properly seated
on the installation plate by moving it left and right.
rear top and rear lower of the indoor unit with the
upper edge and lower edge of the installation
plate.) Ensure that the hooks are properly seated
on the installation plate by moving it left and right.
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 with a wrench.
■ When extending the drain hose at the indoor unit,
install the drain pipe.
Connecting
cable
cable
Loop
Gas side
piping
piping
Liquid side
piping
piping
Drain hose
Installation
plate
plate
Three upper
hooks
hooks
Installation plate
Indoor unit
Three lower
hooks
hooks
Setting line
Indoor unit tubing
Flare nut
Pipings
Connection pipe
Flare nut
Indoor unit tubing
Torque wrench
Spanner (fixed)
Vinyl tape(narrow)
Adhesive
Drain pipe
Indoor unit drain hose
Pipe Size[Torque]
Capacity
(Btu/h)
GAS
LIQUID
30K, 32K
5/8"[6.6kg.m]
3/8"[4.2kg.m]
36K, 38K
3/4"[6.6kg.m]
3/8"[4.2kg.m]
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6. 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 pip-
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.
in which they fit into the rear piping housing sec-
tion.
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.
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
■ Make a small loop with the cable for easy
connection later.
4. Tape the drain hose and the connecting cable.
• Connecting cable
Plastic bands
Insulation material
Drain hose
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
Wrap with vinyl tape
Drain hose
Pipe
Vinyl tape(wide)
For right rear piping
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