These revisions to ANSI/UL 484 include the following:
1. Deletion of component section and addition of basic component requirements paragraphs
2. Deletion of component appendix (appendix A) and moving of component requirements into the body of the standard
3. Revision of requirements for refrigerant tubing due to use of alternative refrigerants
4. Revision to Table 24A.2 for clarity with respect to description of overvoltage category I
5. Revision regarding use of Mold Stress Relief and Leakage Current Tests in place of Heat Deflection and Volume Resistivity Material Tests