1.1 These requirements cover nonelectrical refrigerant-containing components and accessories, intended
for field installation in accordance with the Safety Code for Mechanical Refrigeration, ANSI/ASHRAE 15,
in refrigeration systems, air conditioning equipment, or both, charged with the refrigerants identified for
use in the component or accessory. The requirements also apply to components and accessories
intended for use by manufacturers in factory-assembled systems or units, in which case the component
or accessory is also judged under the requirements for the individual system or unit.
1.2 These requirements do not apply to:
a) Electric valves and electric refrigeration controllers, hermetic refrigerant motor-compressors,
tubing fittings such as flare or compression type fittings, and the like, which are covered in or as
part of separate, individual requirements.
b) Electrical components of assemblies incorporating these refrigerant-containing components
or accessories, and
c) Pressure vessels bearing the ASME Code ?U? symbol which are within the Scope of the
ASME Boiler and Pressure Vessel Code, Section VIII.