This standard applies to factory-made, Forced-Circulation, Free-Delivery Unit Coolers, as defined in Section 3, operating with a Volatile Refrigerant fed by either direct expansion or liquid overfeed at wet and/or dry conditions.

Purpose. The purpose of this standard is to establish for Forced-Circulation Free-Delivery Unit Coolers for Refrigeration: 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.

Customers who purchased AHRI 420
also purchased

• AIR FORCE MIL-STD-810G : ENVIRONMENTAL ENGINEERING CONSIDERATIONS AND LABORATORY TESTS
• NEMA FB 1 : Fittings, Cast Metal Boxes, and Conduit Bodies for Conduit, Electrical Metallic Tubing, and Cable

See More Documents