Harvest cycle - hot gas bypass – Scotsman CME1202 User Manual
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HARVEST CYCLE - HOT GAS BYPASS
When the timer switches the ice maker into the
harvest cycle, the finish relay is de-energized, and
the hot gas valve and inlet water valve OPEN.
Then high pressure, high temperature gas
refrigerant being discharged from the compressor
is diverted from the condenser through the hot gas
solenoid valve into each evaporator plate. During
this cycle, the refrigerant bypasses the condenser.
Both the compressor and the water pump are
operating.
The finished ice cubes are released from the sides
of each evaporator plate by the warming effect of
the hot gas condensing in each evaporator plate
and the water cascading over the ice cubes. The
released ice cubes drop into the ice storage bin
below. At the end of the harvest cycle, the timer
cam will push in the microswitch actuator arm. If
there is no ice close to the bin level control’s
transducer, a whole new cycle will begin. If there is
ice within 8" of the base of the machine (when the
bin level control is set for full) the ice maker will
shut OFF.
REFRIGERATION SCHEMATIC
RESERVOIR
ACCUMULATOR
WATER
INLET
VALVE
WATER
PUMP
WATER
MANIFOLD
CONDENSER
HOT GAS VALVE
EVAPORATOR
FAN MOTOR
DISCHARGE
LINE
COMPRESSOR
WATER SCHEMATIC
INLET
WATER
VALVE
WATER
DISTRIBUTION
RESERVOIR
DRAIN
CME1202 & CME1402
January 1995
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