This standard applies to Desuperheater/Water Heaters supplied as separate components, as defined in Section 3 and using single component and azeotropic refrigerants only.

Exclusions. This standard does not apply to Desuperheater/Water Heaters supplied as components of factory-assembled refrigeration or air conditioning units. This standard does not apply to systems using zeotropic refrigerants.

Purpose. The purpose of this standard is to establish for Desuperheater/Water Heaters: definitions; test requirements; rating requirements; minimum data requirements for Published Ratings; marking and nameplate data; and conformance conditions.

Intent. This standard is intended for the guidance of the industry, including manufacturers, engineers, installers, contractors and users.

Review and Amendment. This standard is subject to review and amendment as technology advances.