User`s guide

PUREGAS, LLC P550W Series Air Dryers User’s Guide
Page 29 of 99 P011658 – Rev. M
8.6 Identifying Dryer Alarms
8.6.1 High Outlet Pressure Alarm -
Occurs when the Outlet Pressure
(OUTP) rises above the alarm
set point for more than one (1)
minute.
(Default setting is 10.0 PSI for Standard models / 7.50 PSI for LP models)
See section 13.5 for troubleshooting information.
8.6.2 Low Outlet Pressure Alarm –
Occurs when the Outlet Pressure
(OUTP) drops below the alarm
set point for more than one (1)
minute.
(Default setting is 2.0 PSI for Standard models / 0.30 PSI for LP models)
See section 13.7 for troubleshooting information.
8.6.3 High Humidity Alarm –
Occurs when the Humidity level
rises above the alarm set point
for more than one (1) minute.
(Default setting is 10.0%)
If this alarm is present for one (1) minute or more, the air Dryer will go into
SHUTDOWN mode to prevent saturated air from being delivered to the
supply line.
See section 13.9 for troubleshooting information.