TROUBLE SHOOTING
Symptom
Poor dewpoint or the moisture
indicator shows clear/white
The dryer produces a lot of noise
Insufficient air leaves the dryer
The unit does not work
The yellow Power On LED flashes
TECHNICAL SPECIFICATIONS
APPLICABLE FOR 10.5 BAR AND 16 BAR UNITS
Nominal conditions
Compressed air inlet temperature
Outlet pressure dewpoint
Humidity
Limit values
Maximum ambient temperature
Minimum ambient temperature
Maximum compressed air inlet temperature
Minimum compressed air inlet temperature
2904 0104 02
Possible cause
The dryer has not had the time to regenerate completely.
The drain is not working correctly.
The air flow through the dryer is too high.
The outlet pressure is too low.
The inlet temperature is too high.
Check the silencer and its fixation to the unit.
Too much purge air escapes.
The fuse burned.
Hardware fault.
Corrective action
Close the valve installed between the dryer and the application (if
permitted) and have the desiccant regenerated.
Check the drain valve of the filter.
Check for correct application.
Check whether the compressor provides enough air for the
application.
Check the compressor aftercooler.
Replace the silencer if necessary or correct its fixation.
Check the condition of the operating valve and replace it if
necessary (10.5 bar).
Check the condition of the solenoid valve and replace it if
necessary (16 bar).
Check the fuse in the connection plug (16 bar units).
Contact your local Atlas Copco dealer (16 bar units only).
CD2
CD3
35 °C
35 °C
-40 °C
-40 °C
100 %
100 %
50 °C
50 °C
5 °C
5 °C
50 °C
50 °C
5 °C
5 °C
I
NSTRUCTION MANUAL
CD6
35 °C
-40 °C
100 %
50 °C
5 °C
50 °C
5 °C
7