6A. Water Assist Harvest Feature
Typical duration of a Harvest sequence is less than
2.5 minutes. When the Harvest sequence time
reaches 4 minutes, the following occurs:
4 minutes into a Harvest sequence: The water fill valve
will energize to fill the trough with water.
5 minutes into a Harvest sequence: The water pump
will energize and flow water over the evaporators.
The water fill valve and water pump remain on until all
bin switches have been activated, or until the 7-minute
Harvest sequence time limit is reached.
7. Automatic Shut-Off
Ice Machine Section: When the storage bin is full at
the end of a Harvest sequence, the sheet of cubes
fails to clear either one or both of the water curtains.
After one or both water curtains are held open for *30
seconds, the ice machine shuts off.
*Note: Early production control boards checked for bin
switch closure within 7 seconds.
CVD
®
Condensing Unit: When the refrigerant pressure
is low enough to open the low pressure switch, the
contactor coil is de-energized and the compressor and
condenser fan motor stop.
The ice machine remains off until enough ice has been
removed from the storage bin to allow the ice to fall
clear of the water curtain(s). As the water curtains
swing back to the operating position, the bin switch
recloses and the ice machine restarts (steps 1-2),
provided the 3-minute delay period is complete. Both
curtains must be closed to start an ice-making
sequence.
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