Low Outlet Pressure Alarm; Can't Create A Low Pressure Alarm - Puregas P550W Series User Manual

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13.7 Low Outlet Pressure Alarm

Possible Cause
Outlet Pressure set too
low
High Flow condition
Low Outlet Pressure
Alarm set point too high
Leak in the air system

13.8 Can't Create a Low Pressure Alarm

Possible Cause
Defective Outlet
Pressure Regulator
Low Outlet Pressure
Alarm set point lower
than default setting
Defective Control Board Verify that the Outlet
P550W Series Air Dryers User's Guide
Check
Verify Outlet Pressure
(OUTP) reading
(section 8.5.5.1 )
Verify Flow Rate
(FLOW) reading is not
higher than expected
(section 8.5.5.2 )
Verify Low Outlet
Pressure Alarm set point
(section 8.7.3 )
With no outlet flow, test
fittings and hoses for
leaks (section 9.15 )
Check
Verify that the Outlet
Pressure Regulator can
be adjusted
(section 8.11 )
Verify Low Outlet
Pressure Alarm set point
(section 8.7.3 )
Pressure (OUTP)
reading is lower than the
Low Outlet Pressure
Alarm set point (above)
Page 87 of 99
Corrective Action
Adjust Outlet Pressure
Regulator (section 8.11 )
Troubleshoot High Flow
condition
(section 13.11 )
Lower the Low Outlet
Pressure Alarm set point
(section 8.7.3 )
Tighten any loose
connections as required
Corrective Action
Replace Outlet Pressure
Regulator if unable to
adjust pressure
(section 11.2 )
Adjust Outlet Pressure
Regulator so that Outlet
Pressure (OUTP)
reading drops below
verified set point
(section 9.14 )
Replace Control Board
(section 11.1 ) if Outlet
Pressure (OUTP)
reading is under verified
Low Outlet Pressure
Alarm set point for more
than 1 minute and fails
to create an alarm.
P011658 – Rev. P