Panasonic CS-PC9DKV Service Manual page 40

CS-PC9DKV / CU- PC9DKV / CS- PC12DKV
10.5. Evacuation (Installation)
(No refrigerant in the refrigeration cycle)
(Indoor unit)
Vacuum Pump
Procedure
1. Connect the vacuum pump to the charge set's centre hose.
2. Evacuation for approximately 1 hour.
Confirm that the gauge needle has moved toward -76cmHg
(-0.1MPa) [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).
4. Disconnect the charge hose from the vacuum.
Vacuum oil
If the vacuum pump oil becomes dirty or depleted, replenish
as needed.
/ CU- PC12DKV
(Liquid side)
(Gas side)
Open
Low High
2-way
valve
3-way
valve
Closed
40
(Outdoor unit)
Open
Open