Blower Purge Desiccant Air Dryer
|
ABP Series
41
TROUBLESHOOTING TABLE
Problem
Probable Cause
Remedy
Vessel 2
Depressurization
Failure
The depressurization valve did not open
Check the purge exhaust solenoid valves for
correct operation. Check the valve actuator
for correct operation.
Vessel did not fully depressurize.
Check to determine if the depressurization muffler is
plugged. If so, replace.
Vessel depressurized, but alarm is on.
Check the pressure sensor for correct operation.
Vessel 1 Re-
pressurization Failure
( 5 minute timer to
alarm)
The re-pressurization valve did not open.
Check the re-pressurization solenoid valve for correct
operation. Check the valve actuator
for correct operation.
Vessel re-pressurized, but the
alarm is on.
Check pressure sensor for correct operation.
Vessel 2 Re-
pressurization Failure
( 5 minute timer to
alarm)
The re-pressurization valve did not open.
Check the re-pressurization solenoid valve for correct
operation. Check the valve actuator
for correct operation.
Vessel re-pressurized, but the
alarm is on.
Check pressure sensor for correct operation.
Regeneration
Heater Sheath Over
Temperature Failure
Defective or open circuit thermocouple.
Replace the thermocouple. RESET alarm.
Low or no regeneration blower flow.
Check the manual valve on the blower. Check the
blower, blower motor and overloads, and blower inlet
filter. Replace as necessary. Press RESET to restart.
Problem with PLC control system.
Replace as needed.
Failure of
Regeneration Outlet
Valves to Operate
Defective solenoid valve, loss of power or
loss of pilot air.
Check the solenoid valve operation and verify the
continuity of the solenoid coil. Replace as necessary.
Check the pilot air system and verify that pilot air is
present at the solenoid valves.
Defective valve actuator.
Verify that the valve actuator can be rotated by
hand with a wrench. If not, replace actuator.
Butterfly valve defective.
Verify that the valve shaft can be rotated by
hand with a wrench. If not, replace or rebuild valve.
Содержание ABP Series
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