Sequence of Operation
Description of Each Process
The following sequence begins with the cuber as shipped from the factory with the water plate(s)
closed and ready to begin a normal ice making cycle.
Fill: The water solenoid valve will be energized until the water level switch indicates that the sump is
full. The water pump will run as the water is filling the sump, If the water plate is open, it will close
before the pump starts. The water solenoid valve will remain de-energized until the following cycle
starts. No additional water will be introduced during the freeze cycle.
Freeze: The freeze cycle begins as the sump is filling with water. The water level in the sump will
drop as the ice cubes are formed.
Lower: When the evaporator outlet reaches the set temperature point the machine will go into
harvest. The water plate begins to open and the defrost valve is energized to allow hot gas to
circulate through the evaporator. The evaporator warms to begin the ice harvest. The dump valve is
also open at this time, to drain the remaining mineral laden water from the sump. When fully open,
the water plate will stop.
Harvest: The evaporator continues to warm until the ice falls out onto the water plate and into the ice
bin. When the evaporator reaches a pre-set temperature, indicating that all the ice has dropped out,
the defrost valve is de-energized and the water plate begins to close.
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