Ceiling mounted air filtration units
17
Problem
Probable cause
Solution
Dust or smoke at
the clean air outlet
Cartridges are not
installed correctly.
Check installation of cartridges and repair if necessary.
Seal the whole assembly (Refer to the replacement
cartridge section on page 2).
Cartridges are not
adjusted
Screw in tight in order to have the gaskets squeezed
against the frame.
Cartridges are
damaged
Replace defective cartridges (Refer to the replacement
cartridge section on page 2).
Gaskets are damaged
Check the gaskets on the access doors, honeycomb
plate, and on the filters.
Insufficient
suction of dust
Fan rotates the
wrong way
Check rotation of fan.
Access doors are not
properly sealed
Check all access doors and gaskets. Also check hopper
for leaks. (Refer to installation on page 9)
Fan has obstructions
Check for obstructions at the fan outlet. Remove any
debris. Adjust the air damper.
Cartridges need to
be replaced
Remove and replace the used cartridges with the same
type of cartridges. (Refer to cartridges replacement
section on page 2)
No pressure in air
system
Ensure there is a minimal 90 psig in the system.
(Refer to eletrical connection on page 2)
Air pulse cleaning
is insufficient
Check if voltage output to the sequencer is sufficient.
Check and change fuse(s) if required.
(Refer to electrical connection on page 2)
Leaks in the com
-
pressed air system
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 re
-
moving the cover. Check for possible leaks at solenoids
near the pneumatic hoses. Replace if necessary.
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)
16 TROUBLESHOOTING
