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ARI 420-94
- Unit Coolers for Refrigeration
- standard by Air-Conditioning, Heating, and Refrigeration Institute (formerly ARI), 01/01/1994
- Publisher: ARI
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The purpose of this standard is to establish, for unit coolers for refrigeration; definitions andclassifications; requirements for testing and rating; operating requirements; and conformanceconditions. This standard applies to factory-made forced circulation free-delivery unit coolers for refrigeration, as defined in Section 3, for operation under either frosting or non-frosting conditions, using volatile refrigerants.
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