D-4
MAINTENANCE
REPLACING FILTER CARTRIDGES
Before opening door, unit must be off and the power
switch on the side of the control panel turned to the off
position.
FIGURE D.2
WARNING
PRISM® SUSPEND 4000
1. Unclasp handles to lower filters for
removal.
2. Slide bag (supplied with new filters) over
each dirty filter before removal.
FIGURE D.1
PREPARATION FOR FILTER REMOVAL
1. Verify power has been switched off at the control panel.
2. Cover equipment below door opening to protect against
falling dust.
3. Unlock door latches using the supplied hex tool or any
standard 5/16" hex wrench.
4. Slowly open door, then brush accumulated dust off door
gasket (at bottom of door) into unit's hopper.
5. To best prevent falling dust, clean inner door surface and
surrounding door gasket with an industrial vacuum cleaner that
meets OSHA guidelines for Cr6 housekeeping.
6. Follow steps A - C for filter replacement
a.
Unclamp handles and lower filters.
FIGURE D.3
b. Remove filters.
1. Slide filters out of unit through the door opening as
shown.
2. If required by federal, state and/or local regulations
and guidelines, conceal filter cartridge in
appropriate bag, e.g. plastic bag.
3. Dispose of the filter cartridge in accordance with all
federal, state and/or local guidelines.
4. Clean the filter compartment with an industrial
vacuum clener that meets OSHA guidelines for Cr6
house-keeping.
1. Install new filters, making sure they are pushed
against rear of unit.
2. Reclasp filter handles to lift filters to their sealed
position.
3. Re-lock door latches using the supplied hex wrench
or any standard 5/16" hex wrench.
PRE-FILTER REPLACEMENT
•
Remove pre-filters located in housings
accessible on the outside of the intake dampers.
Unlatch bottom bracket to allow filter to slide out
the bottom.
•
Pre-Filters can be cleaned using detergent and
water but should be replaced if they can no
longer be thoroughly cleaned. Pre-filters must
be kept clean to ensure maximum life of the four
internal cartridge filters.
