5.3 Preparations
Check that the CoolSafe ice condenser is free from ice and water, and that all valves i.e. the drain
valve is closed. Check that there is no water in the drain valve.
Check that the gas ballast valve on the vacuum pump is open at all times.
Check the oil level in the pump and the oil mist filter. The filter should have only a maximum
10 mm oil level (preferably it should be empty).
Switch on the CoolSafe and the vacuum pump.
The lowest temperature should be achieved within 60 minutes.
The vacuum pump should now be allowed to run for at least 30 minutes to achieve the
lowest vacuum performance. The electrical vacuum valve remains closed until you enter
the freeze-drying modes (opened via the green switch button on the front of the Basic or
Pro cabinets).
5.4 Freeze drying using manifolds
1. The manifold is connected to the conus in the lid. Make sure this connection is tight. Check
that all rubber valves are closed (A) or in vacuum-release position (C), and that the flange
and lid are tight.
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