Scotsman CME250 - Manual (Page 17)

Harvest Cycle:
During the harvest cycle, the refrigerant flows from
the compressor, through the discharge line to a
branch in the line containing the Hot Gas Valve.
This valve is Open during the harvest cycle,
allowing the hot discharge gas to bypass the
condenser and enter the evaporator at its inlet.
The hot discharge gases warm up the evaporator
enough to allow the surface of the ice frozen to the
evaporator to melt. The remaining ice will then fall
off into the bin.
During the Harvest Cycle, the inlet water valve
opens, filling the reservoir and allowing the
reservoir to overflow the drain.
Inlet
Water
Valve
(OPEN)
Water
Pump
Evaporator
Water Distribution
System
Hot Gas Valve
(OPEN) Suction Line
Liquid Line
Condenser
Dryer
Compressor Discharge Line
Thermo. Exp.
Valve
Water Reservoir
Refrigeration Schematic
Hot Gas
Valve
Filter
Fan Motor
CME250
August 1994
Page 17