INTERPRETATION: IIAR SC 2021-3, IIAR 5, Evacuation and …
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WebMay 13, 2021. Evacuation and Dehydration of Industrial Ammonia Refrigeration Systems. BACKGROUND: QUESTION 1: ANSWER 1: IIAR-5 2019, Chapter 5, Section 5.5.6, addresses evacuation and dehydration of closed-circuit ammonia refrigeration systems. Section 5.5.6.1 specifies two evacuation levels required to achieve evacuation and …
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