Stulz SCS Series - Page 27

-SCS CONDENSER IOM MANUAL
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1. The refrigerant then flows to the condenser coil. The high
temperature, high-pressure gas from the compressor is
cooled by the flow of air through the condenser coil and
is condensed into a high-pressure liquid.
2. For cold weather applications using flooded head
pressure control, the low temperature high-pressure
liquid refrigerant flows to a receiver. The receiver acts
as a storage tank for the liquid refrigerant that is not in
circulation.
3. The refrigerant flows through a liquid sight glass. This
device shows the presence of air, moisture and the
condition of the refrigerant in the system.
4. The low temperature high pressure liquid refrigerant
then flows to the evaporator where it removes heat and
evaporates back into a gas.
5. The refrigerant gas is then drawn back to the compressor
and the cycle is repeated.
The refrigeration circuit must be tested at start-up.