Testing Unloader Valve - Puregas P550W Series User Manual

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9.7 Testing Unloader Valve

With the Compressor running:
9.7.1 Locate the Unloader Valve
on the right side of the
heatless Dryer.
9.7.2 Place your hand over the
Unloader Valve to feel for air
flow.
Air should NOT flow from
this fitting continuously. Air
should only be released in a
short burst when the
compressor shuts off.
If air flows from this valve continuously the Unloader Valve is either defective
and should be replaced. See sections 11.3 for part detail and 11.5 for ordering
information.
P550W Series Air Dryers User's Guide
Page 64 of 99
P011658 – Rev. P