INSTRUCTION MANUAL-CoolSafe Freeze Dryersmodels
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5.4. Freeze-drying using chambers
1. Make sure that the (external) vacuum valve is closed.
2. Mount the chamber and shelf arrangement on the CoolSafe. Check that all connections are tight and
the chamber is closed. If heated shelves are to be used, refer to the controller manual.
3. Open the chamber; place the frozen material on the shelves in the chamber. Close the chamber and
the drain valve.
4. Open the (external) vacuum valve. The freeze-drying process is now in progress.
5. To stop the freeze-drying process, close the (external) vacuum valve and equalize the pressure by
opening the release valve at the lid.
6. Remove the material from the shelves.
5.5. De-ice
The freeze dryer may be de-iced by:
Leaving the ice condenser open at room temperature.
Filling the ice condenser with hot water leaving the drain valve open until the ice has melted or take
the ice block out after 1 minute.