Kemper Clean Air Tower Mode D'emploi page 71

According to use, but at least once a month, the condensate forming must be
drained from the compressed air containers.
Proceed as follows:
Hold a beaker under the needle valve outlet (item 1), while
you open it slowly.
Only close the needle valve item 1) again if only air is venting.
Figure 12, draining the condensate from the compressed air container
Part no.: 150 2627 (CAT 2.0)
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KEMPER CleanAirTower 2.0 Operating instructions - EN
- 71 - Rev.: 00
Issue: 02/2017