Operation - Whirlpool R-106 Training Manual

Operation

Mid-South Mid-South
Operation
Icemaker Operational Cycle
Both the Compact and the Modular icemakers rely on a combination of electrical and
mechanical functions to create and eject ice. The complete ice cycle for the Compact
icemaker is described below and is divided into six major functions. The Modular ice-
maker cycle is also divided into the same six functions but requires only one revolu-
tion to complete the ejection of the ice. The six major functions are:
Freeze- Water enters the icemaker and is deposited in an ice mold. While the evapo-
rator fan runs, part of the sub zero air that enters the freezer compartment is directed
across the top of the mold. Heat is removed from the water and the water freezes in
the mold.
Release- The temperature of the ice continues to drop until a thermostat in the ice-
maker closes. The thermostat is in contact with the mold and senses the temperature
of the mold and, thus, the ice within the mold. Designs vary but the mold temperature
must drop to around 15°F before the thermostat closes. This assures that the water
is completely frozen before the icemaker attempts to eject the ice. The closing of the
thermostat energizes a mold heater and starts the icemaker motor. The purpose of
the heater is to raise the temperature of the mold above 32°F.
Eject- With the mold heater energized, the ice in the mold begins to melt, freeing the
ice from the mold. At the same time, the icemaker motor turns an ejector blade which
lifts the ice out of the mold and dumps it into the ice bucket.
Sweep- The icemaker motor continues to rotate the ejector blade for another revolu-
tion. Any ice that might have not ejected during the first sweep will be ejected.
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