scope:

This standard applies to mechanical refrigeration equipment consisting of an integrated single package refrigeration unit, or separate Unit Cooler and condensing unit sections, where the condensing section can be located either outdoor or indoor. Controls may be integral, or can be provided by a separate party as long as performance is tested and certified with the listed mechanical equipment accordingly.

Exclusions. This standard does not apply to: 

Enclosures used for telecommunications switch gear or other equipment requiring cooling 

Enclosures designed for medical, scientific or research purposes 

Performance testing and efficiency characterization of large parallel rack refrigeration systems (condensing

Purpose. The purpose of this standard is to establish, for walk-in coolers and freezers: definitions; test requirements; rating requirements; minimum data requirements for Published Ratings; operating requirements; marking and nameplate data and conformance conditions. 

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

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