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CAP-215
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Instruction Manual Oil-Less Compressors
5. AUTOMATIC CONDENSATE DRAIN
5.1. DESCRIPTION
The condensate drain valve should drain the final separator (1 -stage compressor) or the intermediate and final
separator (2-stage compressor) every 15 minutes or earlier if necessary.
Furthermore, condensate is drained after each operation (stand still drainage).
A solenoid valve is installed as a condensate drain valve, which is open when it does not receive any
power. It works electro-pneumatically.
5.2. FUNCTION
The solenoid valve closes as soon as it receives current, thus condensate can be collected in the separators.
Power supply is interrupted every 15 minutes, the solenoid valve opens and condensate can be drained.
The solenoid valve is de-energized and opens after the compressor has been shut down. Thus the separators
are drained at down-time.