LG LM-1860HL Service Manual ▷ View online
- 35 -
6. Test running
2) Evaluation of the performance
1. Measure the temperature of the intake and
discharge air.
2. Ensure the difference between the intake
temperature and the discharge one is more
than 8°C.
than 8°C.
discharge air
1) Connection of power supply
1. Connect the power supply cord to indepedent
power supply.
2. Prepare the Remote Controller.
• Insert two batteries provided.
Remove the cover from the back of the remote
control.
control.
• Slide the cover according to the arrow direction.
Insert the two batteries.
(Two "R03" or "AAA" dry-cell batteries or equiv-
alent.)
(Two "R03" or "AAA" dry-cell batteries or equiv-
alent.)
• Be sure that the (+) and (-) directions are cor-
rect.
• Be sure that both batteries are new.
Re-attach the cover.
• Slide it back into position.
3. Operate the unit at cooling operation mode
for fifteen minutes or more.
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ø70mm
ø70mm
5~7mm
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.)
using anchor bolts.)
• Always mount the Installation plate horizontally by
aligning the marking-off line with using the thread
and a level.
and a level.
2. Drill the piping hole with 70mm dia. holecore
drill.
• Line according to the arrows marked on lower
the left and the right side of the lnstallation
Plate.
Plate.
The meeting point of the extended line is the
center of the hole.
center of the hole.
• Drill the piping hole at either the right or the left
and the hole should be slightly slant to the outdoor
side.
side.
3. Settlement of Outdoor Unit
* Anchor the outdoor unit with a bolt and nut (Ø
10cm) tightly and horizontally on a concrete or
rigid mount.
rigid mount.
* When installing on the wall, roof or rooftop,
anchor the mounting base securely with a nail or
wire assuming the influence of wind and earth-
quake.
wire assuming the influence of wind and earth-
quake.
* In the case when the vibration of the unit is con-
veyed to the house, settle the with an antivibration
rubber.
rubber.
Type "A" screw
Installation Plate
Marking-off line
Thread
Weight
Left rear piping
Center
Center
Right rear piping
Indoor
Turbing
connection
Bolt
Outdoor
Wall
The lower left and right side of lnstallation
Plate.
Plate.
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 the measured
distance.
• Cut the cable 1.5m longer than the length.
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
leakage.
leakage.
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 0.5mm higher. (See illustration)
• Flare the pipe ends.
4. Tape the flaring portion to protect it from the
dust or damages.
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90
When properly flared, the internal surface flare will
evenly shine and be of even thickness.
Since the flare part comes into contact with the
connectors, carefully check the flare finish.
evenly shine and be of even thickness.
Since the flare part comes into contact with the
connectors, carefully check the flare finish.
Pipe cutter
Slanted
Rough
Pipe
Point down
Reamer
Bar
0.5mm
Bar
Copper pipe
Clamp handle
Red arrow mark
Handle
Yoke
Cone
= Improper flaring =
Inclined
Surface
damaged
Cracked
Uneven
thickness
2. Piping and Drainage of Indoor Unit
Pipe Size
Liquid side(1/4")
Gas side(3/8")
Torque
1.8Kg . m
4.2Kg . m
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2) Connection of Pipings
1. Remove the indoor tubing with Drain hose to
the hole.
• Remove tubing holder and pull the tubing out
of the chassis.
2. Replace the tubing holder into original posi-
tion.
3. Route the tubing and the drain hose straight
backwards.
4. Insert the connecting cable into the indoor
unit through the piping hole.
• Don't connect the cable to the indoor unit.
• Make a small loop with the cable for easy con-
nection later.
5. Tape the tubing, drain hose and the connecting
cable.
For right rear piping
Taping
Indoor/Outdoor
Connecting cable
Connecting cable
Connecting
cable
Gas side piping
Liquid side piping
Drain hose
To remove the holder,
press the bottom of the
chassis near the holder
upward pull the
tab is out of
press the bottom of the
chassis near the holder
upward pull the
tab is out of
its hole.
Turn 90
¡
Press
Tubing holder
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