Labconco 24-Port Manifold User Manual
Page 3
Labconco Instruction Sheet 7508700, Rev C, ECO D621 9/06 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). See Figure 3. This will allow vacuum to
build up in the system.
Figure 3
When the system is ready to begin 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). See Figure 4.
Figure 4
Let the samples run until primary and secondary freeze-drying is 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.