NAVAC Master Series User Manual page 7

4.Press the "START" button to start machine.
5.Turn the knob to "Recover".
NRDDF
leve
8.
Notice
If fluid hammer happens in the recovery, please
turn the knob to "Slow" position slowly, then the
reading of low pressure gauge drops until fluid
hammer stops; but do not let reading pressure
drop to zero, otherwise inlet port is not pumping
once at zero pressure.
If it is difficult to start, turn to "CLOSE" when liquid,
turn to "PURGE" when vapor, then press "START"
to restart the machine, and turn to the required
position.
NRDDF
setting
based on
level