Labconco 6-Port Manifold for FreeZone Stoppering Tray Dryers and Bulk Tray Dryers - Manual (Page 3)

Labconco Instruction Sheet 7759400, ECO B139 Page 3 of 5
Valve Operation
When the Freeze Dry System is started, the valves should all be in the vent position. (The bevel
on the knob should point away from the sample port). This will allow vacuum to build up in the
system.
When the temperature and vacuum reach conditions appropriate for lyophilization, attach the
sample container to the valve. Apply vacuum to the sample by rotating the knob to the vacuum
position. (The bevel on the knob should be positioned toward the sample port).
Let the samples run until primary and secondary freeze drying are complete. Release vacuum by
turning the valve to the vent position. The vent port may also be used to introduce sterile air or
dry Nitrogen into the sample container.
BEVEL IN VENT POSITION
BEVEL IN VACUUM POSITION