scope:

This standard applies to the methods of testing for rating single-stage positive-displacement refrigerant compressors and condensing units that (a) do not have liquid injection and (b) are operated at subcritical (saturated) temperatures of the refrigerant.

This standard applies to the methods of testing for rating single-stage positive-displacement refrigerant compressors and condensing units that (a) incorporate liquid injection that is controlled by a steady flow rate method and (b) are operated at subcritical (saturated) temperatures of the refrigerant.

This standard applies to all of the refrigerants listed in the ASHRAE Handbook - Fundamentals and in ANSI/ASHRAE Standard 34 that fall within the scope defined in Sections 2.1 and 2.2 above.