Ceiling mounted air filtration units
15
1 .
"LAST OUTPUT"
sets the amount of valves the system uses.
2
.
"TIME OFF"
sets the delay in between each pulse.
3.
"TIME ON"
sets the valve opening time.
4.
"HIGH LIMIT"
sets the highest limit at which the sequencer will start pulsing (available only
with the DCP pressure module).
5.
"LOW LIMIT"
sets the lowest limit at which the sequencer will stop pulsing (available only
with the DCP pressure module).
6.
"HIGH ALARM"
and
"LOW ALARM"
are adjustments for an alarm signal to be activated if
either of the two (2) settings is passed.
7 .
"CYCLE DELAY"
allows a waiting period between each cleaning cycle.
8.
"DOWN TIME CYCLE"
allows one or more cleaning cycles after the shutdown of the system.
9 .
"AUTO ALARM RESET"
allows the original automatic alarm settings.
Refer to the manufacturer’s owner’s manual for any questions concerning the DCT-1000 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.
15 MAINTENANCE AND INSPECTION
The chart indicated below shows different inspections and the frequency at which they should be
performed.
Frequency of
inspections
Components
Procedures
Daily
Dust collector
Check the clean air outlet for possible presence of
dust or smoke traces.
Check the level of dust in the storage bins or drums.
Empty if needed.
Check the proper operation of the diaphragm valves.
Magnehelic gauge
Check and log data. If the values indicated are above
the fixed limits, refer to the troubleshooting section.
