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(4) Removal of excess refrigerant oil after
compressor replacement
The oil plug and "Removing oil label" are fitted
on the spare parts compressor.
™
When the compressor is replaced to spare
parts compressor, remove the excess
refrigerant oil in the following procedure.
1. First check again whether the
discharge/suction side stop valves are
opened and the cable connection at
terminal is correct.
2. Connect manifold to the discharge and
suction ports.
3. Operate the unit for about 5 minutes.Stop
the unit.
4. Operate the S-PTI (Short PTI) and stop at
step of "P10".
(1) Set the ON/OFF switch to ON.
(2) Push and hold the
key for 3 seconds
to enter PTI selection mode.
(3) Selecting the "S-PTI" mode using the
key and pushing the
key
activates the short PTI.
(4) When "P10" is displayed on the LED,
stop the unit.
→
←
Excess oil
Oil plug
Oil
REMOVING EXCESS COMPRESSOR
OIL IS NOT COMPLETED.
REMOVE EXCESS COMPRESSOR OIL.
THEN TAKE OFF THIS LABEL
7. Close the oil plug when no more oil comes
out.
8. Take off "Removing oil lavel" sticked on
compressor body.
5. Bypass gas from high pressure side to low
pressure side of gauge manifold, adjust the
low pressure to 0kPa or more.
6. Loosen the oil drain plug and remove the
excess oil.
Removing
oil lavel
oil plug
Remove
excess oil
Preparation
Return the
oil to the
compressor
<Function of step P06 & P08 before P10>
Operate the steps of "P06" and "P08" which
are displayed on the LCD.
P06/HPS check:
When the high pressure rises, the
circuration rate of refrigerant increaces
and the oil is expecte to return to the
compresor.
P08/Pump down check:
The refrigerant contained in the
compressor oil is evaporated and
separated from the oil.
04̲LXE10E100以降(08-26)̲E.qx 08.8.27 5:04 PM ページ 4-11
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