Horizontal downflow pleated cartridge dust collector
25
Problem
Probable cause
Solution
Insufficient
suction of dust.
The sequencer card
does not respond
Check if voltage output to the sequencer is sufficient.
Check and replace the fuse if required. If voltage and
fuse are working and card still does not respond,
change the card. (refer to card connection on page 2).
Filtration has
minimal effect.
Air pulse cleaning
is insufficient.
Check if voltage output to the card is sufficient. Check
and replace fuse if required (refer to card connection
diagram on page 2).
Shortage of
compressed air
Ensure there is a minimal 90 psig in the system.
(Refer to eletrical connection on page 2).
Valves do not work
properly
Lock all electrical breakers hooked up to the dust col-
lector and bleed the pneumatic lines. Check for debris,
wear and tear or a break in the diaphragm valve by
removing the cover. Check for leaks at the solenoids
and on the pneumatic hoses. Replace and repair all da-
mages. If the valves are frozen, check the air dryer or
install a heating element around the valves.
Wrong adjustment in
pulsation sequence
Check for cleaning delay and duration are adequate.
(Refer to sequencer card adjustment on page 2).
High level of humidity
loads the filters
Check for relative humidity in the collector. Check for
leaks. Take necessary measures to lower the humidity
level.
Wrong filter material
Replace the filters as per the recommendations of
A.Q.C. Inc.
Temperature of gas
filtered is higher than
anticipated
Check for temperature of gas. Improve the situation to
obtain appropriate temperature.
Presence of static
electricity in collector
Ground collector and components.
