It's probably a combination of pressure switch
(turns power to the compressor on and off) and
also unloader (bleeds off the high pressure air
between the compressor and the input check valve).
The unloader is important. A compressor does not
like to start, when there is still pressure in the
discharge line. The motor takes too much amps,
and really is tough on the motor.
On Wednesday, November 27, 2013 5:39:12 AM UTC-5, Stormin Mormon wrote:
Agreed. If you pay close attention to a compressor operating you can hear
the unloaded release the pressure from the line when the motor stops. You
hear the short "Pssst". If the unloaded doesn't work the motor won't start
You are correct. However, since some people here like
things to be excessively precise, the compressor does
not like to start with a sealed compressor stage.
Piston, sliding vane, or screw. :-)
Centrifugal types are a bit more forgiving if they have
metal housings. Technically these are more of a blower,
but I digress.
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