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In this article, I provide suggestions to increase the operating efficiency of R-717 (ammonia) and R-22 refrigeration systems. They are listed randomly with no intent to make one or the other as the most important. Since industrial refrigeration systems are usually unique, each system requires a thorough analysis to determine which suggestions will provide the most return on investment. Some suggestions do not require any capital expenditure.


Citation: ASHRAE Journal, vol. 45 no. 5, May 2003