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WARNING
• After installing the product, be sure to perform leak
tests on the piping connections. Before 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. Shut off the liquid valve with the Allen
wrench.
2. Turn on the air conditioner in cooling with
fan operating at high velocity. (Compressor
will immediately start, provided 3 minutes
have elapsed since the last stop.)
3. After 2 minutes of operation, shut the
suction valve with the same wrench.
4. Turn off the air conditioner and switch
mains supply off.
5. Disconnect tubing. After disconnection,
protect valves and tubing ends from dust.
CAUTION
• Compressor damage may occur if the compressor is
run at a negative suction pressure.
Pumping down for removing the product
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.
1
Liquid service port
<High pressure>
2
Off
1 minute
Gas service port
<Low pressure>
English
45
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