LG LS-D1862HL Service Manual ▷ View online
- 24 -
A,B
A,B,C
C
D
D
5-7mm
A,B,D
C
A
B,D
C
ø70mm
2) Indoor Unit Installation
The mounting wall should be strong and solid enough
to prevent it from the vibration.
to prevent it from the vibration.
1. Mount the installation plate on the wall with
four Type "A" screws.
(if mounting the unit on the concrete wall, consider
using anchor bolts.)
(if mounting the unit on the concrete wall, consider
using anchor bolts.)
• Always mount the Installation plate horizontally by
aligning the marking-off line by means of the
thread and a level.
thread and a level.
2. Drill the piping hole with 70mm dia. holecore
drill.
• The position of holecore Drill
• Drill the Piping hole at either the right or the left
and the hole should be slightly slanted to the out-
door side.
door side.
Type "A" screw
Installation Plate
marking-off line
Thread
Weight
The lower left and right side of Installation
Plate
Plate
Left rear piping
Right rear piping
Indoor
Hole Center
Installation plate
Outdoor
WALL
D
D
D
D
Left holecore position
Right holecore position
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2. Piping and Drainage of Indoor Unit
1) Preparation of Pipings
1. Cut the pipes and the cable.
• Use the accessory piping kit or the pipes pur-
chased locally.
• Measure the distance between the indoor and the
outdoor unit.
• Cut the pipes a little longer than measured dis-
tance.
• Cut the cable 1.5m longer than the length of the
pipe.
2. Remove burrs.
• Remove burrs from cut edges of pipes.
• Turn the pipe end toward down to avoid the metal
powder entering the pipe.
Caution:
If burrs are not removed, they may cause a gas leak-
age.
age.
3. Flaring the pipes.
• Insert the flare nuts, mounted on the connection
ports of both indoor and outdoor unit, onto the
copper pipes. Some gas may leak, when the flare
nuts are removed from the indoor unit, as some
gas is charged to prevent the inside of the pipe
from rusting.
copper pipes. Some gas may leak, when the flare
nuts are removed from the indoor unit, as some
gas is charged to prevent the inside of the pipe
from rusting.
• Fit the copper pipe end into the Bar of flare tool
about 0.5~1.0mm higher. (See illustration)
• Flare the pipe ends.
4. Tape the flaring portion to protect it from the
dust or damages.
When properly flared, the internal surface of the flare
will evenly shine and be of even thickness.
After the flare part comes into contact with the connec-
tors, carefully check the flare finish.
will evenly shine and be of even thickness.
After the flare part comes into contact with the connec-
tors, carefully check the flare finish.
Pipe cutter
Slanted
Rough
Pipe
Point down
Reamer
Handle
"A"; ø15.88 mm (5/8")
¡
0~1.0 mm
ø12.7 mm (1/2")
¡
0~0.5 mm
ø9.52 mm (3/8")
¡
0~0.5 mm
ø6.35 mm (1/4")
¡
0~0.5 mm
Cone
Yoke
Bar
Clamp handle
Copper pipe
Bar
Red arrow mark
= Improper flaring =
Inclined
Surface
damaged
Cracked
Uneven
thickness
3. Route the tubing and the drain hose straight
backwards.
4. Insert the connecting cable into the indoor 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.
5. Tape the tubing, drain hose and the connecting
cable. Be sure that drain hose locates at the
lowest side of the bundle. Locating at the upper
side can be a reason that drain water overflows
drain pan inside the unit.
lowest side of the bundle. Locating at the upper
side can be a reason that drain water overflows
drain pan inside the unit.
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2) Connection of Pipings
1. Remove the indoor tubing with Drain hose from
the hole
• Remove tubing holder and pull the tubing out of
the chassis.
2. Replace the tubing holder into original position.
For right rear piping
¤Ł
Pull
¤
Press
To remove the holder,
press the bottom of chas-
sis near the holder
upward and pull the tab
out of its hole.
press the bottom of chas-
sis near the holder
upward and pull the tab
out of its hole.
Tubing holder
Connecting
cable
cable
Gas side piping
Liquid side piping
Drain hose
Taping
I n d o o r / O u t d o o r
Connecting cable
Connecting cable
18K
Cooling Model
Heat Pump Model
24K
- 27 -
6. Indoor unit installation
• Hook the indoor unit onto the upper portion of
installation plate. (Engage the two hooks of the
rear top of the indoor unit with the upper edge of
the installation plate.)
Ensure the hooks are properly seated on the
installation plate by moving it left and right.
rear top of the indoor unit with the upper edge of
the installation plate.)
Ensure the hooks are properly seated on the
installation plate by moving it left and right.
7. Connecting the pipings to the indoor unit
• Align the center of the pipings and sufficiently
tighten the flare nut with fingers.
• 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.
When tightening the flare nut with torque wrench,
ensure the direction for tightening follows the
arrow on the wrench.
8. Wrap the insulation material around the
connecting portion.
CAUTION: Take care to arrange the pipings, drain
hose and cables as the picture on page
31 for inserting it into the indoor unit
and refixing the tubing holder easily.
31 for inserting it into the indoor unit
and refixing the tubing holder easily.
Connecting
cable
cable
Drain hose
Press the lower left and right side of the unit against
the Installation Plate until the lower hooks engages
with their slots (sound click).
the Installation Plate until the lower hooks engages
with their slots (sound click).
Flare nut
Pipings
Torque wrench
Spanner
Indoor unit tubing
Plastic Bands
Insulation material
Wrap the insulation material around the connecting
portion.
portion.
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
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