Installation Sheet

8
How the machine Makes Ice
Turn the power switch to the ON position. The machine will automatically start the ice making stage.
There are two distinct cycles: freeze and harvest. During the freeze cycle, water is sprayed against
the evaporator surface. In the harvest cycle, the ice is released and water enters the machine. A
complete cycle can take 20 to 40 minutes, depending on temperature and operating conditions.
Freeze
During the freeze cycle the compressor is pumping refrigerant, the fan motor is blowing air, and
the water pump is circulating water. When the batch of ice has been fully formed, the ice maker
stops the freeze cycle and begins the harvest cycle.
Harvest
During the harvest cycle the compressor is still operating, but the water pump has stopped. Two
other components have been energized: the hot gas valve and the water inlet valve. These two valves
open and warm up the freezing surface, allowing the cubes to fall into the bin. The freeze cycle will restart
when all the cubes have been harvested.
How the Machine Uses the Water
The ice maker begins with a fixed charge of water that is contained in the water sump. As the water
is sprayed against the freezing evaporator surface, the portion of water that does not contain
mineral impurities will freeze and stick to the ice cube molds. The water containing impurities falls
back into the water sump. Gradually, during the freezing portion of the ice-making cycle, the water
in the sump will become highly concentrated with mineral impurities. During the harvest cycle, fresh
water flows into the machine to dilute the bin water and rinse the concentrated minerals down the
drain.