INDIRECT REFRIGERATION SYSTEM
Indirect refrigeration plants with secondary working fluids are frequently used
all over the world. The discovery that some primary refrigerants contribute to global
environmental effects has led to the phasing out of CFC refrigerants. Large primary
refrigerant leaks in supermarkets and large heat pumps have focused attention on the use
of indirect systems (factory-built cooling units) with secondary fluids for a variety of
applications. Further, the primary refrigeration unit is designed as a compact chiller in a
machine room with an extremely small refrigerant charge