High Compressor Last Run Time Alarm; Can't Create A High Compressor Last; Run Time Alarm - Puregas P550W Series User Manual

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13.17 High Compressor Last Run Time Alarm

Possible Cause
Low System Pressure
High Flow condition
Defective Unloader
Valve
Defective Heatless
Dryer Solenoid Valve
Defective control board
13.18 Can't Create a High Compressor Last Run Time Alarm
Possible Cause
High Compressor Last
Run Time Alarm set
point higher that the
default of 3:00 minutes
Defective Control Board Verify that the
P550W Series Air Dryers User's Guide
Check
Verify System Pressure
(section 8.9 )
Verify Flow Rate
(FLOW) reading is not
higher than expected
(section 8.5.5.2 )
Test Unloader Valve
operation (section 9.7 )
If this is continuously
flowing high amounts of
air, the Unloader Valve
is defective.
Verify consistent
Heatless Dryer cycling
(section 9.6 )
If either side is
continuously flowing
high amounts of air, the
Solenoid Valve is
defective.
Measure voltages at
control board
(section 9.3 )
Check
Verify High Compressor
Last Run Time Alarm
set point (section 8.7.5 )
compressor has run
longer than the verified
High Compressor Last
Run Time Alarm set
point (above)
Page 92 of 99
Corrective Action
Adjust System Pressure
to 50 PSI, ± 2 PSI.
(section 8.9 )
Troubleshoot High Flow
condition
(section 13.11 )
Replace Unloader Valve
(section 11.3 )
Replace Solenoid
Valves included in the
8,000 Hour Maintenance
Kit (section 11.4 )
If measurements are
incorrect, replace
control board (section
11.1 )
Corrective Action
Allow the compressor to
run longer than the
verified set point
(section 9.11 )
Replace Control Board
(section 11.1 ) if the
compressor runs longer
than the verified High
Compressor Last Run
Time Alarm set point by
1 minute or more and
fails to create an alarm.
P011658 – Rev. P