Performance Rating of Positive Displacement Refrigerant Compressors and Compressor Units
Section 1. Purpose
1.1 Purpose. The purpose of this standard is to establish, for Compressors: definitions, test requirements, rating
requirements, minimum data requirements for Published Ratings, operating requirements, marking and nameplate
data, and conformance conditions.
1.1.1 Intent. This standard is intended for the guidance of the industry, including manufacturers,
engineers, installers, contractors and users. The standard defines the minimum amount of information, in a
standard form to enable the evaluation and comparison of different Compressors for use in a particular
1.1.2 Review and Amendment. This standard is subject to review and amendment as technology advances.
Section 2. Scope
2.1 Scope. This standard applies to positive displacement refrigerant Compressors operating in subcritical
applications at a fixed displacement. This standard also applies to the presentation of performance data for
Compressors for air-cooled, evaporative-cooled or water-cooled air-conditioning, heat pump and refrigeration
applications. The manufacturer is solely responsible for the determination of values to be used in published product
information. This standard stipulates the minimum amount of information to be provided and suggests a method to
be used to verify the accuracy of that information.
2.2.1 This standard does not apply to Compressors employing ammonia, as covered in ANSI/AHRI
Standard 510 or carbon dioxide in subcritical and transcritical applications, as covered in ANSI/AHRI
Standard 570 (I-P) and ANSI/AHRI Standard 571 (SI).
2.2.2 This standard does not apply to modulated refrigerant mass flow Compressors or Compressors
utilizing vapor injection for the purpose of subcooling to gain capacity.
2.2.3 This standard does not apply to Compressors intended for use in:
18.104.22.168 Household refrigerators and freezers
22.214.171.124 Automotive air-conditioners
126.96.36.199 Industrial products other than heating and cooling