Henny Penny 500 Service Manual page 57

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Step 9
9. When the pump is pumping air only, the:shortening
in the frypot will appear to be boiling. Close the filter
valve first and then move the main power ~switch
from PUMP to OFF. This will keep the filter pump
and lines from filling up with shortening.
When the appearance of boiling occurs, immediate-
ly close the filter valve. This will prevent aeration
of the shortening, therefore increasing shortening
life.
10. Check the level of the shortening if necessary, until
it reaches the level indicator line on the rear wall of
the frypot.
Approximately 10 to 12 filterings can be made with
one charcoal filter, depending on several condi-
tions; the quantity and type of product fried and
filtered, the type of breading used, and the amount
of crumb accumulation left inside the drain pan.
When the filter becomes clogged, and pumping
flow rate slows down, clean the filter and change
the charcoal filter. (Refer to the Changing the
Charcoal Filter procedure given in paragraph
3-15.)
11. After completing the filtering operation, empty and
replace the condensation drain pan.
12. If frying is to be continued at this time, move the
main power switch back to the ON position, and allow
time for reheating of the shortening.
The following steps will help prevent filter pump
problems:
1.
ake certain the charcoal filter is installed with the
smooth side down and the arms on the frame are
clamped down over the protrusions on the outside
of the frame.