Identify and eliminate faults
HDK350_EN_01_2005-05-10
57
Fault
Possible cause
Remedy
Specialised
personnel
Service technician
Operating pressure too low
Increase operating pressure
z
Excessive differential pressure at
upstream filter
Check differential pressure at the
upstream filter; replace filter element, if
necessary.
z
Compressed air volume flow too high Reduce compressed air volume flow.
z
Inlet temperature of compressed air
too high
Reduce inlet temperature of
compressed air or install preliminary
compressed air cooler.
z
z
Condensate trap (optional) at the
upstream filter is not working properly
Check condensate trap (optional); clean
or replace, if necessary.
z
z
Inspect upstream filter for
contamination; replace filter element, if
necessary.
z
Drying agent contaminated or out of
date
Inspect drying agent for contamination;
replace, if necessary.
z
z
Control board defective
Check fuses (switchbox, supply line);
replace board, if necessary.
z
Dewpoint is not reached
Insufficient regeneration gas
Check function of valve V7/V8 and
muffler; replace filter element of muffler,
if necessary.
z
z
Pressure in vessel too
low
Excessive differential pressure at
upstream filter
Check differential pressure at the
upstream filter; replace filter element, if
necessary.
z
Muffler contaminated
Check muffler for contamination; clean
or replace, if necessary.
z
z
Valve V7/V8 does not open properly
see *
Backpressure during
regeneration too high
Dust filters blocked
Clean or replace dust filters..
z
z
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.
z
No pressure build-up
Valve V1/V2 or V9 does not open
properly.
see *
Condensate trap (optional) at the
upstream filter is not working properly
Check condensate trap (optional); clean
or replace, if necessary.
z
z
Excessive compressed
air consumption
Valve V7/V8 does not open properly
see *
Compressor is switched off
Check compressor synchronisation.
z
Power supply interrupted, cable
broken.
Reconnect the unit to the power supply.
z
Valve V1/V2 does not open properly
see *
Error in control programme
Restart programme.
z
Dryer fails to switch over
Control board defective
Check fuses (switchbox, supply line);
replace board, if necessary.
z
z
Summary of Contents for HDK 50/100
Page 1: ...High Pressure Dryer HDK 50 100 600 350 Operating Instructions Issue 05 2005 EN...
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Page 72: ...Dimensional drawing 72 HDK350_EN_01_2005 05 10 Items Option...
