Ceiling mounted air filtration units
14
14.3 Compressed air system
WARNING!
Shut off the compressed air valve and bleed the line feeding
the collector prior to performing maintenance on the unit.
1 .
Periodically check the compressed air components such as the air dryer and regulator.
Replace in line air filters feeding compressed air to the unit.
2.
Remove any humidity that may be present in the compressed air lines using the
recommendations of the manufacturer.
3.
With the compressed air system switched on, check the cleaning valves, the activating
solenoids, pneumatic hoses and possible leaks. Correct any problem and replace defective
parts.
14.4 Programming instructions DCT-500 sequencer
The card program was factory adjusted. The valves opening time is set at 100 msec and the delay
between each opening is set at 10 seconds.
Should those delays be modified for any reason, adjust the potentiometers located at the top of
the electronic board.
"PULSE ON"
represents the opening time and the
"PULSE OFF"
represents
the delay in between each cleaning sequence.
Refer to the manufacturer’s owner’s manual for any questions concerning the DCT-500 sequencer.
Note:
do not readjust the valves opening time
"PULSE ON"
or the delay between each cleaning until
appropriate tests have been made. A too short or too long delay could reduce the life expectancy
of the filters. Contact your A.Q.C. representative for questions.
14.5 DCT-1000 sequencer
The card programming was set at the factory. The valves opening time was set at 100 msec and the
delay set at 10 seconds. Furthermore, if the electronic card was supplied with a pressure module,
other parameters may be programmed such as low and high pressures, pulse connectors, etc.
Should those delays be modified for any reason, adjust them as per the following instructions:
Press the "select" button to scroll the different programming options. Press
"UP"
and
"DOWN"
buttons to modify the value.
