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Cabinet Series Dehumidifying Dryer 35
Chapter 6: Maintenance
6-1 Work Rules
The installation, operation, and maintenance of this equipment is to be conducted in accordance
with all applicable work and safety codes for the installation location. This may include, but is not
limited to, OSHA, NEC, CSA, and any other local, national, and international regulations.
In addition, you must observe the following specific work rules:
; Keep these operating instructions on hand and follow them when installing, operating, or
maintaining your dryer.
; If these instructions become damaged or unreadable, you can obtain additional copies
from the manufacturer.
; Only qualified personnel familiar with this equipment should work on or with this unit.
; Work only with approved tools and devices.
Disconnect power before servicing your dryer. If the disconnect switch you installed has a lockout, lock it
in the OFF position before you perform any maintenance or service.
6-2 Servicing Process Air Filters
Important! Operating the dryer without the process air filter installed voids your
warranty! Filter cleaning is an important part of your dryer maintenance
program.
Our dehumidifying dryers have a single cartridge canister-type filter in the process and conveying
air loop. The process filter is mounted above the process blower on the rear of the dryer. The
conveying filters are located under the drying hopper next to the conveying blowers. These filters
protect the blowers from plastic fines drawn in from the drying hopper. Regular filter cleaning is
essential to keep your dryer operating at peak efficiency.
You can wash or blow out the filters, but remember, you reduce dirt holding capacity with each
washing. The risk of dirt reaching the clean side of the filter during cleaning, plus possible filter
damage from high pressure washing or blowing, makes washing a gamble.
You can carefully clean or wash the filter when airflow becomes restricted. Do not wash filters
more than six (6) times or use them for more than a year, whichever comes first.
Use a detergent that won’t damage filter media. Such a detergent permits easy removal of dirt
particles through flushing and rinsing. An effective detergent removes the fine particles from the
pores of the filter media.
The filter manufacturer recommends FM 1400 washing compound. It is formulated specifically
for air filter element cleaning. It is non-sudsing and works in hot or cold water. FM 1400 contains
biodegradable synthetic detergents and is non-phosphate, non-NTA. For more information,
contact Filter Service Corporation, 2603 A West Main, Farmington, NM,
1-505-326-1127.