Puregas P550W Series User Manual page 18

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6.5.15.2 Turn the knob until
the reading on the
pressure gauge is 50
PSI.
6.5.15.3 Push the knob in to
lock.
6.5.16 Let the Dryer run until the
Humidity drops below 2%.
(may take up to 15 minutes).
NOTE: Press the RESET
button if the Dryer goes into
SHUTDOWN mode.
6.5.17 Power the Dryer OFF.
P550W Series Air Dryers User's Guide
Page 18 of 99
P011658 – Rev. P