ARLINGTON, Va. — The Air-Conditioning and Refrigeration Institute (ARI) has announced that ARI Standard 470-2002, "Desuperheater/Water Heaters," and ARI Standard 480-2001, "Remote Type Refrigerant-Cooled Liquid Coolers," have been revised and are available for free download at www.ari.org as part of the Institute’s online service that now features free standards.
ARI standards establish rating criteria and procedures for measuring and certifying product performance. In this way, products are rated on a uniform basis so that buyers and users can properly make selections for specific applications.