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(No refrigerant in the refrigeration cycle)
1. Connect the vacuum pump to the charge set’s centre
hose.
2. Evacuation for approximately one hour.
•
Confirm that the gauge needle has moved toward -0.1
MPa (-76 cmHg) [vacuum of 4 mmHg or less.]
MPa (-76 cmHg) [vacuum of 4 mmHg or less.]
3. Close the valve (Low side) on the charge set, turn off
the vacuum pump, and confirm that the gauge needle
does not move (approximately 5 minutes after turning
off the vacuum pump).
does not move (approximately 5 minutes after turning
off the vacuum pump).
4. Disconnect the charge hose from the vacuum pump.
•
Vacuum pump oil
If the vacuum pump oil becomes dirty or depleted,
replenish as needed.
If the vacuum pump oil becomes dirty or depleted,
replenish as needed.
11.2.5. Evacuation (Installation)
Procedure:
60
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