NWDC
IM 26 MAR 2014 © 2014 Novatec, Inc. All Rights Reserved
Page 33
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NWDC IM 26 MAR 2014
11.2 Filters
The filters shipped with the dryer are cleanable. The maintenance interval for the filters
depends on the cleanliness of the surroundings and the dust/fines in plastic raw
materials. A program should be established to ensure the filters are cleaned.
11.2.1 Process and Regeneration Filters
TURN THE MAIN DISCONNECT SWITCH OFF
.
On -25 through -75 Models:
Remove the lower front panel from the dryer.
The Process and Regen Filters are labeled.
Loosen the clips on the Process Filter and
remove it from the canister. Remove the wing nut
from the Regen Filter and slide it off the threaded
mounting rod. Clean it with compressed air or
replace as necessary and re-install.
On -100 and -150 Models:
Unscrew the black knob, remove the filter
access cover, open wing nut and pull cartridge
filter out from housing. Replace the filter or
clean it with compressed air, reinstall filter, and
re-tighten the wing nut and close filter access
cover and tighten the knob properly.
Reconnect power and restart dryer.
11.2.2 Conveying Air Filter - Loosen the clips on the Conveying Air Filter and remove
it from the canister. Clean it with compressed air or replace as necessary and
re-install.
11.2.3 Draining Plasticizer
Regen
Air Filter
Process
Air Filter
Conveying
Air Filter
Process
Air Filter
Regen
Air Filter
Conveying
Air Filter
Models -25 through -150 have a
plasticizer drain on the back side of
each dryer.
Every 2 weeks (or more often) a pan
should be placed under the drain and
the valve should be turned to the open
position to drain any accumulated
plasticizer.
Close the valve after draining.
