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AHRI 420

2008 Edition, January 1, 2008

Complete Document

Performance Rating of Forced-Circulation Free-Delivery Unit Coolers for Refrigeration

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Description / Abstract:

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.