Part Number 80-1505-3 6/11 111
Sequence of Operation
NOTE: The toggle switch must be in the ice position
and the water curtain/ice dampers must be in place on
the evaporator before the ice machine will start.
INITIAL START-UP OR START-UP AFTER
AUTOMATIC SHUT-OFF
1. Water Purge
Before the compressor starts, the water pump and
water dump solenoid are energized to purge the ice
machine of old water. This feature ensures that the ice
making cycle starts with fresh water.
Single and twin evaporator models energize the
harvest valve(s) and air compressor (when used)
during the water purge and they remain energized
during refrigeration start-up.
CVD Condensing Unit:
When the refrigerant pressure is high enough to close
the low-pressure control the contactor coil energizes
and the compressor starts.
The compressor and fan cycling control* are supplied
with power throughout the entire Freeze and Harvest
Sequences. When the refrigerant pressure is high
enough to close the fan cycling pressure control the
condenser fan motor starts.
Energized Control Board Lights-
Single Evaporators = Left Bin (green)
Twin Evaporators = Left & Right Bin (green)
Quad Evaporators = All Curtain Switches (green),
Dump Valve (red), Water Pump (red)
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