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FORM THE PIPINGS
1. Wrap the connecting portion of indoor unit with
the Insulation material and secure it with two
Plastic Bands. (for the right pipings)
• If you want to connect an additional drain hose,
the end of the drain-outlet should keep distance
from the ground. (Do not dip it into water, and fix
it on the wall to avoid swinging in the wind.)
In case of the Outdoor unit being installed
below position of the Indoor unit.
2. Tape the Pipings, drain hose and Connecting
Cable from bottom to top.
3. Form the pipings gathered by taping along the
exterior wall and fix it onto the wall by saddle
or equivalent.
Test running
1) PRECAUTIONS IN TEST RUN
• The initial power supply must provide at least 90% of the rated voltage.
Otherwise, the air conditioner should not be operated.
For test run, carry out the cooling operation firstly even during heating season. If heating operation
is carried out firstly, it leads to the trouble of compressor. Then attention must be paid.
Caution
Carry out the test run more than 5 minutes without fail.
(Test run will be cancelled 18 minutes later automatically)
• The test run is started by pressing the room temperature checking button and down timer button for 3 sec-
onds at the same time.
• To cancel the test run, press any button.
CHECK THE FOLLOWING ITEMS WHEN INSTALLATION IS COMPLETE
• After completing work, be sure to measure and record trial run properties, and store measured data, etc.
• Measuring items are room temperature, outside temperature, suction temperature, blow out temperature, wind
velocity, wind volume, voltage, current, presence of abnormal vibration and noise, operating pressure, piping
temperature, compressive pressure.
• As to the structure and appearance, check following items.
Is the circulation of air adequate?
Is the draining smooth?
Is the heat insulation complete
(refrigerant and drain piping)?
Is there any leakage of refrigerant?
Copyright ©2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Seal a small opening
around the pipings
with gum type sealer.
Trap is required to prevent water from entering
into electrical parts.
Is the remote controller switch operated?
Is there any faulty wiring?
Are not terminal screws loosened?
M4...118N . cm{12kgf . cm}
M6...245N . cm{25kgf . cm}
- 23 -
Seal a small opening
around the pipings
with gum type sealer.
Drain hose
Trap
Taping
Pipings
Connecting
cable
Power supply
cord
M5...196N . cm{20kgf . cm}
M8...588N . cm{60kgf . cm}
LGE Internal Use Only
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Troubleshooting
