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ORDER NO. MAC9807010C3
CS-MC90KH
3 Evacuation
(No refrigerant in the refrigeration cycle)
Procedure:
(1) Connect the vacuum pump to the charge set’s
center hose.
(2) Evacuation for approximately one hour.
●
Confirm that the gauge needle has moved toward
–76 cmHg [vacuum of 4 mmHg or less].
–76 cmHg [vacuum of 4 mmHg or less].
(3) Close the valve (Lo 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).
needle 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.
3-way valve
3-way valve
OPEN
Vacuum pump
Lo
Hi
OPEN
(Indoor unit)
(Outdoor unit)
(Gas side)
(Liquid side)
Open
Open
Untitled-19
6/26/00, 3:41 PM
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