1 Scope

1.1 These requirements cover nonelectrical refrigerant-containing components and accessories, intended for field installation in accordance with the Safety Code for Mechanical Refrigeration, 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:

1. a) Electric valves and electric refrigeration controllers, hermetic refrigerant motor-compressors and the like, which are covered in or as part of separate, individual requirements.

2. b) Electrical components of assemblies incorporating these refrigerant-containing components or accessories, and

3. c) Pressure vessels bearing the ASME Code “U” symbol which are within the Scope of the ASME Boiler and Pressure Vessel Code, Section VIII.

Summary of Topics

This revision to ANSI/UL 207 dated January 21, 2020 includes the following changes in requirements:

– Revisions To Include Requirements To cover Refrigeration Fittings; 1.2, 3A.49, 5.7, 5.7.1, Section 10A, and Supplement SA

– Changes to Include Refrigeration Line Sets; Sections 10B, 19A – 19C

– Deletion of Limited-Charge Systems Requirements; 11.2, 11.4

– Addition of Nonmetallic materials Requirements; 4.9, 22.10.3

– Proposed Clarification To Marking Requirements; 22.4

– Remove Four Refrigerants from Table 11.1

– Editorial Corrections; Table 5.1, 12.1.2.1, 12.2.2, 12.2.3, 15.1, 22.1.5 – 22.1.9, and 23.1