How It Works: Refrigeration - Scotsman CS60 Service Manual

CS60
HOW IT WORKS:
FREEZE CYCLE
The ice cubes are formed in an inverted mold
that is refrigerated.
The refrigeration process begins at the
compressor. There, refrigerant vapor is
compressed and flows from the compressor
through the discharge line as a high
temperature, high pressure gas. In the
discharge line there is a strainer with two
outlets, one leads to the condenser, and one to
a solenoid valve. Because the solenoid valve is
closed, the gas flows to the condenser, where
heat is transferred from the refrigerant to the air
passing through the condenser. The refrigerant
then condenses into a high pressure liquid.
EVAPORATOR
STRAINER
Refrigeration System Schematic
REFRIGERATION
CAPILLARY TUBE
DISCHARGE
LINE
January 1995
From the condenser, the liquid refrigerant flows
through the liquid line, and the liquid line
filter-drier. After the filter drier, the liquid
refrigerant enters the metering device, a
capillary tube. After passing the restriction of
the capillary tube, the refrigerant enters an area
of relative low pressure, the evaporator. In the
tubing of the evaporator, the liquid refrigerant
expands and evaporates, absorbing heat from
the evaporator tubing and anything in contact
with it such as water sprayed against it.
The refrigerant, now a low pressure, low
temperature vapor, flows into the accumulator,
which traps excess liquid refrigerant. The vapor,
now primarily a gas, goes through the suction
SUCTION
LINE
COMPRESSOR
Page 10
ACCUMULATOR
CONDENSER
LIQUID
LINE
FILTER-DRIER