Part Number Preliminary 6/11 111
Harvest Sequence
5. Water Purge
The air pump(s) (when used) and the harvest valve(s)
open at the beginning of the water purge to divert hot
refrigerant gas into the evaporator.
The water pump(s) continues to run, and the water
dump valve energizes to purge the water in the water
trough.
6. Harvest
The air pump (when used) remains energized and the
harvest valve(s) remains open. The refrigerant gas
warms the evaporator causing the cubes to slide, as a
sheet, off the evaporator and into the storage bin.
Single evaporator models - The sliding sheet of
cubes opens the water curtain/ice damper and 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.)
Multiple evaporator models - The sliding sheet of
cubes opens the ice damper and bin switch. The
momentary opening and re-closing of the bin switch
de-energized the harvest valve for the evaporator.
When all of the bin switches have opened and closed
the ice machine will terminate the harvest sequence
and return to the freeze sequence (Step 3 - 4.)
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