Freeze Cycle - Ice-O-Matic Gourmet UCG Series Installation And Service Manual

UCG GOURMET SERIES UNDERCOUNTER
A. FREEZE CYCLE
The freeze cycle is controlled by the evaporator temperature sensor (which has its probe in contact
with the evaporator serpentine) that determines the length of its first portion of the cycle. When the
temperature of the evaporator serpentine drops to a pre-set value (small red LED ON steady) the
evaporator sensor probe changes its electrical resistance allowing a low voltage current (15 volts) to
flow to the PC Board which in turn activates an electric timer. The timer, which is built into the PC
Board, takes over from the evaporator temperature sensor, and controls the freeze cycle to
completion.
The change of the electric potential of the evaporator sensor with the consequent activation of the
timer (time mode) is signaled by the glowing of the RED LED located in the front of the PC Board.
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