26
Installation Inspection and Testing
English
Installation
ࣞ In Heat mode, use the Temperature button to set
ϩ˵ʪϑʪϩϩʪΧʪθɇϩЇθʪϩͱߪߨছ࣑ߥߢঙ࣒
ࣞ Check whether, approximately 3 to 5 minutes later,
the outdoor unit starts, and a cool or warm air
blows out.
ࣞ After 12 minutes of stationary condition, check the
indoor unit air treatment.
4 Press the
(Air swing) button to check whether the
airflow blades work properly.
5 Press the
(Power) button to stop the trial operation.
Pumping down for removing the product
Pump-down is an operation intended to collect all the system
refrigerant in the outdoor unit. This operation must be carried
out before disconnecting the refrigerant tubing in order to
avoid refrigerant loss to the atmosphere.
WARNING
࡛ After installing the product, be sure to perform leak
tests on the piping connections. After pumping down
refrigerant to inspect or relocate the outdoor unit,
be sure to stop the compressor and then remove the
connected pipes.
ࣞ Do not operate the compressor while a valve is
open due to refrigerant leakage from a pipe or an
unconnected or incorrectly connected pipe. Failure
to do so may cause air to flow into the compressor
and too a high pressure to develop inside the
refrigerant circuit, leading to an explosion or
product malfunction.
1 Hold down the
(Power) button on the indoor unit for
5 seconds. Beep sounds immediately to indicate that the
product is ready for pump down procedure.
2 Let the compressor run for more than 5 minutes.
3 Release the valve caps on High and Low pressure side.
4 Use L-wrench to close the valve on the high pressure side.
5 After approximately 1 minute, close the valve on the low
pressure side.
6 Stop operation of the air conditioner by pressing the
(Power) button on the indoor unit or remote control.
7 Disconnect the pipes.
CAUTION
࡛ Compressor damage may occur if the compressor is run
at a negative suction pressure.
1
2
Liquid service port
<High pressure>
1 minute
Gas service port
<Low pressure>
Off
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