SC200 Installation& Operation Manual
3-16
10
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.
Raise:
The water solenoid valve will be energized,as the water plate closes, to begin filling the
sump for the next ice-making cycle. When fully closed, the water plate will stop and the water
pump will be energized. The evaporator cools and begins to remove heat from the water to make
the next batch of ice.
Ice Bin Full:
When the level of ice reaches the bin probe, the ice maker stops automatically, and it
remains off until the bin probe warms up when the ice level is lowered.
Cleaning Mode:
All of the operational components except refrigeration are able to function with
the make ice/clean switch in the clean position. Simply placing this switch in the cleaning position
does not complete the cleaning and sanitizing of the cuber. Instructions pertaining to the cleaning
of a machine can be found on page 12 of this manual.
Note: The frequency of the need for cleaning is determined by the supply water characteristics.
The cuber should be cleaned no less frequently than once each 6 months, and it may require
more frequent cleaning. The requirement for sanitizing frequency may be contained in local health
code regulations.
