Importance

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Abstract

In the supermarket cooling system disclosed herein, a variety of evaporative loads having different suction requirements are served by respective compressors, each operating across a corresponding pressure differential but pumping into a common high side header. A single condenser unit serves the combined refrigerant flow from all loads and, from the condenser, the refrigerant flow normally passes through an air-cooled heat reclaim exchanger which is downstream of an air conditioning evaporator in the air conditioning ductwork. The heat reclaim exchanger can be selectively bypassed for certain extreme conditions of operation. By varying the air flows through the condenser unit and the heat reclaim exchanger, a highly efficient thermal operation under the most prevalent conditions is achieved in a very simple hardware configuration.

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First Claim