5 | Installation
Büchi Labortechnik AG
28/100
Operation Manual Lyovapor™ L-200/L-200 Pro
2
1
Fig. 10: Manual switch on main valve
1
Main valve
2
Manual switch on main valve
Manual switch positions
Manual switch
position
Meaning
Precondition:
R
Pressure-regulating valve and venting valve are connected.
u
The vacuum is regulated by the pressure-regulating valve
and venting valve.
Precondition:
R
Pressure-regulating valve and venting valve are not
connected.
u
The vacuum is regulated by the main valve.
Precondition:
R
The main valve manual switch is depressed.
u
As long as the main valve manual switch is depressed,
vacuum regulation is deactivated.
The vacuum is not regulated.