ALTEC AIR, LLC
P550W Series Air Dryers User’s Guide
Page 69 of 98
P011658 – Rev. S
9.14.2
Pull the Outlet Pressure
Regulator knob out (or loosen
the retaining nut – LP
Models).
9.14.3
Turn knob counter-
clockwise until Outlet
Pressure (
OUTP
) reading
drops
below 2.0 PSI
(
below
0.30 PSI
– LP Models).
After one (1) minute, the Low Pressure Alarm should appear on the display.
9.14.4
Turn Outlet Pressure
Regulator knob clockwise
until Outlet Pressure (
OUTP
)
reading rises to the reading
recorded in step 9.14.1
9.14.5
Push knob in to lock (or
tighten the retaining nut – LP Models).
9.14.6
Press the
RESET
Button
.
If you are unable to create a Low Outlet Pressure Alarm as described, see section
13.8 for troubleshooting information.
9.15 Testing Air Fittings & Hoses for Leaks
NOTE:
This is a general procedure that can be applied to any fitting or hose that
has air pressure in it.
DO NOT SOAP TEST THE HUMIDITY SENSOR
FITTING. DAMAGE TO THE SENSOR MAY OCCUR.
With Compressor NOT running:
9.15.1
Listen for any ‘hissing’ sounds which may indicate a fitting or hose air
leak.