Troubleshooting; Dewpoint Failure - Parker CDAS HL 050 Guide D'utilisation

6 Troubleshooting

In the unlikely event that a problem occurs on the equipment, this troubleshooting guide can be used to identify the probable cause and remedy.
Troubleshooting should only be attempted by competent personnel. All major repair, and calibration work should be
undertaken by a Parker trained, qualified and approved engineer.

6.1 Dewpoint Failure

A dewpoint failure will result in there being water in the downstream piping and equipment.
Possible Cause
The inlet parameters have changed.
The condensate is not being drained.
The compressor is not functioning correctly.
The compressor capacity has changed.
The after cooler is not functioning correctly.
There is no wet air receiver fitted within the system.
Filtration has not been correctly maintained.
The dryer has been by-passed.
The regeneration column pressure within the dryer is greater than
350mbar.
There is a fault with the dryer timer.
There is a fault with the dryer valves.
The desiccant is approaching the end of its useful life.
Action Required
If the inlet flow-rate or the inlet temperature have increased ensure
that the filters and dryer are re-sized accordingly.
If the inlet pressure has changed ensure that the filters and dryer
are re-sized accordingly.
Verify that all condensate drains are functioning correctly.
Check that the drain hoses are free from kinks and obstructions.
Ensure that the isolation valves on the drains are fully open.
Check the documentation supplied by the compressor manufacturer
for troubleshooting guidance.
Ensure that the filters and dryer are sized accordingly.
Test that condensate drain is operating correctly.
Check that the cooling water system is functioning correctly and that
the water temperature is within specification (water cooled systems
only).
Ensure that the after cooler and dust filter (if fitted) are clean (air
cooled systems only).
Ensure that the fan is functioning correctly (air cooled systems only).
Install a wet air receiver and drain within the system (if possible).
Ensure there is adequate drainage on the piping prior to the dryer
pre-filtration. A water separator should also be installed before the
dryer pre-filtration to ensure removal of bulk liquid.
If the element and float drain have been installed longer than 12
months ensure that they are both changed.
Verify that the float drain is operating correctly.
If a bypass line has been installed on the system ensure that it is
closed. Use bypass filtration.
Contact a Parker approved service agent.
Contact a Parker approved service agent.
Contact a Parker approved service agent.
Contact a Parker approved service agent.
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