Energenics Super Series Lint Filter 2007 - Manual (Page 17)

17
Maintenance Requirements
The frequency of your maintenance requirements depends upon the number of hours of
operation and upon variances in your product output. For a single-shift operation, without
special problems, the frequency recommended below should suffice. You should set your own
schedule based on your experience.
1. WEEKLY
Visually inspect the filter inside and outside, its controls and their operation. At time of
such inspection, note and correct any discrepancies from normal operation.
2. MONTHLY
Check the static pressure. Disconnect the lower pressure hose, and then use a
magnehellic gauge, manometer, or U-tube to measure and record the resistance. This
will show the pattern of operation of your system. If pressure exceeds 1 inch W.C.,
insure the rotor is correctly turning and cleaning the screen.
Watch the air pressure gauge on the filter. Record the drop in pressure during the blow
down cycle. A normal pressure is from 100psi at the start to 80psi after six seconds.
The minimum pressure is 80psi. Any less will not reliably clean the screen. If the
pressure were to fall from 100psi to 40psi, the air supply is inadequate or obstructed.
3. QUARTERLY
On filters using fire protection control, carefully test the Fenwall fire sensor accessed
through the inspection door. First disconnect the initiator/solenoid leads from the panel
and connect a 24 VDC bulb to initiator terminals in the control unit. Heat the Fenwall fire
sensor with a heat lamp or other convenient source. When the bulb in the control unit
changes state, remove heat source and allow Fenwall fire sensor to cool. Reset control
unit. Test lamp must change state and stay changed after system is reset. Do not
reconnect initiator/solenoid leads until all Fenwall fire sensors have cooled below set
point as indicated by test lamp.
FILTER SCREEN MAINTENANCE
Chemicals present in the laundry uniforms, shop towels or other linen may eventually
clog the filter screen. When this occurs, try the following:
1. Spray with an engine degreaser like GUNK. Allow soaking per the instructions for
cleaning an auto engine. Spray clean with water.
2. Operate one dryer without a load to blow hot air through the filter to dry it.
3. Restart the dryer. Operation should be perfectly normal. It should not be necessary
to replace the screen unless it is punctured.