LG LM-2164H2L Service Manual ▷ View online
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2) Connection of Pipings
1. Remove the installation plate
• Pull the two '
∆
' marked portion of bottom of the
chassis and pull the installation plate out of chas-
sis.
sis.
2. Route the drain hose and the indoor tubing.
For left rear piping
3. Route the tubing and the drain hose straight
backwards(see figure).
4. Insert the connecting cable into the indoor
unit through the piping hole.
• Do not connect the cable to the indoor unit.
• Do not 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. 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.
Installation plate
Pull
Pull
• To remove the holder, press
the bottom of the chassis
near the holder upwards
and the tab is clear of its
hole.
near the holder upwards
and the tab is clear of its
hole.
• Turn it clockwise approx.
90° and remove it.
Tubing holder
¥L
Press
¥M
Pull
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Connecting
cable
cable
Drain hose
Indoor unit tubing
Flare nut
Pipings
Spanner
Torque wrench
Plastic bands
Insulation material
Press the lower left and right side of the unit
against the Installation Plate until the hooks
engage with their slots (sound click).
against the Installation Plate until the hooks
engage with their slots (sound click).
6. Indoor unit installation.
• Hook the indoor unit onto the upper position 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 the hooks are properly seated on the
installation plate by moving it in left and right.
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 in 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.
Wrench tightening the flare nut with forque
wrench, ensure the direction for tightening fol-
lows the arrows on the wrench.
Wrench tightening the flare nut with forque
wrench, ensure the direction for tightening fol-
lows the arrows on the wrench.
8. Wrap the insulation material around the con-
necting portion.
CAUTION: Take care to arrange the pipings,
drain hose and cables as the right
upper picture for inserting it into the
indoor unit and refixing the tubing
holder easily.
upper picture for inserting it into the
indoor unit and refixing the tubing
holder easily.
Pipe Size
Torque
Liquid Side (1/4")
1.8kg
¡⁄
m
Gas Side (3/8")
4.2kg
¡⁄
m
Gas Side (1/2")
5.5kg
¡⁄
m
Wrap the insulation material around the connecting
portion.
portion.
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9. Set the pipings and the connecting cable to
the back of the chassis with the tubing
holder.
holder.
• Hook the edge of tubing holder to tap on chas-
sis and push the bottom of tubing holder to be
engaged in the bottom of chassis.
engaged in the bottom of chassis.
10. 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 in 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 in left and right.
Drain hose
Tubing holder
Taping
Piping
Push
2
Hook
1
Connecting
cable
cable
Drain hose
Press the lower left and right side of the unit
against the Installation Plate until the hooks
engages with their slots (sound click).
against the Installation Plate until the hooks
engages with their slots (sound click).
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(3) Connecting Pipings and the cable to Outdoor unit
Outdoor unit
A-UNIT
Gas side piping
Liquid side piping
B-UNIT
Torque wrench
1) Connecting the pipings to the Outdoor
unit
1. Align the center of the pipings and sufficiently
tighten the flare nut with fingers.
2. Finally, tighten the flare nut with torque
wrench until the wrench clicks.
• When tightening the flare nut with torque wrench,
• When tightening the flare nut with torque wrench,
ensure the direction for tightening follows the
arrow on the wrench.
arrow on the wrench.
CAUTION
After the confirmation of the above conditions, prepare the wiring as follows:
1) Never fail to have an individual power specialized for the air conditioner. As for the method of
wiring, be guided by the circuit diagram pasted on the inside of control box cover.
2) The means for disconnection from a power supply shall be incorporated in the fixed wiring and
have an air gap contact separation of at least 3mm in each active(phase) conductors.
3) The screw which fasten the wiring in the casing of electrical fittings are liable to come loose from
vibrations to which the unit is subjected during the course of transportation. Check them and
make sure that they are all tightly fastened. (If they are loose, it could give rise to burn-out of the
wires.)
make sure that they are all tightly fastened. (If they are loose, it could give rise to burn-out of the
wires.)
4) Specification of power source.
5) Confirm that electrical capacity is sufficient.
6) See to that the starting voltage is maintained at more than 90 percent of the rated voltage marked
on the name plate.
7) Confirm that the cable thickness is as specified in the power sources specification.
(Particularly note the relation between cable length and thickness.)
8) Never fail to equip a leakage breaker where it is wet or moist.
9) The following troubles would be caused by voltage drop-down.
• Vibration of a magnetic switch, damage on the contact point there of, fuse breaking, disturbance to the
normal function of a overload protection device.
• Proper starting power is not given to the compressor.
Pipe Size
Torque
Liquid Side (1/4")
1.8kg.m
Gas Side (3/8")
4.2kg.m
Gas Side (1/2")
5.5kg.m
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