–15–
Harvest Sequence
5. Water Purge
The water pump continues to run, and the water dump
valve energizes for 45 seconds to purge the water in
the sump trough. The water fill valve energizes (turns
on) and de-energizes (turns off) strictly by time. The
water fill valve energizes for the last 15 seconds of the
45-second water purge. The water purge must be at
the factory setting of 45 seconds for the fill valve to
energize during the last 15 seconds of the Water
Purge. If set at less than 45 seconds the water fill
valve does not energize during the water purge.
After the 45 second water purge, the water fill valve,
water pump and dump valve de-energize. (Refer to
“Water Purge Adjustment” for details.) The harvest
valve also opens at the beginning of the water purge to
divert hot refrigerant gas into the evaporator.
6. Harvest
The harvest valve(s) remains open and the refrigerant
gas warms the evaporator causing the cubes to slide,
as a sheet, off the evaporator and into the storage bin.
The sliding sheet of cubes swings the water curtain
out, opening the bin switch. The momentary opening
and re-closing of the bin switch terminates the harvest
sequence and returns the ice machine to the freeze
sequence (Step 3 - 4.)
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