KOMAC00607-09EN 7
Economizer Components
The chiller may or may not have economizers depending on design capacity
requirements. An economizer is a well-proven device to increase a refrigerant circuit’s
capacity and to a lesser extent, its efficiency.
Figure 4, Economizer Components
Warm liquid from the condenser is feed into the economizer where it is cooled by flashing off
liquid also from the condenser. The flash gas is piped to a compressor interstage point.
Lowering the liquid refrigerant temperature to the evaporator decreases its enthalpy (heat
content) and results in a greater amount of heat absorption from the chilled water.
Brazed-plate Heat
Exchanger
Gas to Comp.
Interstage
Liquid from
Condenser
Liquid
Feed to
Evaporator
Liquid
Feed to
Economizer
TXV LLSV
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