August 2013
Page 19
Service Manual for Models CU0415, CU0715 and CU0920
Anti-Slush
Slushinthereservoirrestrictspumpow,causes
excessively long freeze cycles and is something this
machine is designed to prevent.
It does that by shutting off the water spray to the
evaporator at a critical time.
The critical time is when the water temperature is near
the freezing point. The controller measures the water
temperature using a thermistor probe in the pump
discharge hose. At the correct temperature it cuts
power to the water pump for 30 seconds. This allows
the water left on the evaporator surface to securely
freeze to the evaporator surface. When the pump
restarts the freeze cycle will continue until harvest.
The indication that the unit is in a anti-slush mode is a
light on the back of the controller.
Anti-Slush Pump Light
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