Parker Zander HDK-MT 10-100, Руководство по эксплуатации

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Identify and eliminate faults
HDK-MT350_EN_04 43
Fault Possible cause Remedy
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Insufficient regeneration gas Check function of valve Y3/Y4 and muffler;
replace filter element of muffler, if necessary.
 
Pressure in vessel
too low
Excessive differential pressure at
upstream filter
Check differential pressure at the upstream
filter; replace filter element, if necessary.

Backpressure
during regeneration
too high
Muffler contaminated Check muffler for contamination; clean or
replace, if necessary.
 
Valve Y3/Y4 does not open properly see *
Solid filter soiled. Clean or replace the solid filter.
 
No pressure build-
up
Compressed pressure system
upstream from the dryer is not
pressurised
Check whether the compressed pressure
system upstream from the dryer is
pressurised. Eliminate any faults in the
compressed air system.

Valve Y1/Y2 or Y5 does not open
properly.
see *
Excessive
compressed air
consumption
Condensate trap (optional) at the
upstream filter is not working properly
Check condensate trap (optional); clean or
replace, if necessary.
 
Regeneration air setting too high. Have adjusted.

Dryer fails to switch
over
Compressor is switched off Check compressor synchronisation.

Power supply interrupted, cable
broken.
Reconnect the unit to the power supply.
 
Valve Y1/Y2 does not open properly see *
Error in control programme Restart programme.

Control board defective Check fuses (switchbox, supply line); replace
board, if necessary.
 
No expansion in
chamber
Valve Y3/Y4 does not open properly see *
Operating pressure too low. Increase the operating pressure.

Dryer is
continuously bled
Valve Y3/Y4 does not close properly see *
Valve Y1/Y2 does not close properly
*
Valve fails to open or close properly
Check supply voltage.
 
Check whether coil is properly mounted.
 
Inspect valve for contamination; clean or
replace, if necessary.
 
Check voltage at cables, contacts and coils;
replace defective parts as necessary.
