Summary of Topics
This revision to ANSI/UL 1963 dated March 25, 2021 includes the following:
• Clarifications and addition of alternate method for evaluating protective electronic circuits and controls using requirements based on UL 60335-1; 3.12.1, 3.13, 3.14, 3.16.1, 3.16.2, 3.26.1, 3.28.1, 3.28.2, 3.28.4, 9.2.1, 17.14 – 17.18.8, 17.19.1, Table 19.2, 25.1.2.2, 27.1 – 27.6, 42.3, 42.4, 45.3, 48.1, 48.2, Section 69A, Section 74, Section 85A, Section 90A, Appendix B
• Addition of requirements for remotely operated refrigerant recovery/recycling equipment; 3.18.0, 10.4.7, 14.16, Section 17A, 94.13
• Update of motor-protection requirements; 19.2.1, 19.2.1.1, 19.2.3, 19.2.4
• Clarify requirements for large nonmetallic exterior surface materials; Table 52.1
• Alternate compliance option for EMI filters; 33.1
• Alternate power supplies; 3.28.3, 3.30, 25.3.1, 25.3.3, 25.3.3.1, 25.3.4, 25.3.6, 25.4 (title), 25.4.1, 25.4.1.1, 25.4.2, 25.4.5, 25.4.7 – 25.4.9, 36.1.1, 36.2, Section 36A, Section 69B, 91.27
• Addition of new capacitor standard requirements; 3.5.1, 24.1 – 24.3, 24.5 – 24.7
• Gasket requirements; 9.3.8, 83.1, 83.3 – 83.4.2, 83.5, 83.6
• Wiring subjected to movement; 12.1.10, Section 82A
• Clarification to marking requirements; 91.1.1
• Maximum operating current and maximum rated current requirements; 3.2.1, 3.2.2, 3.19.1, 3.19.2, 11.11, 12.1.2, 17.1 – 17.3, 17.11, 17.11.1, 17.13, 19.3.1, 19.3.2, 19.3.2.1, 56.3, 66.3, 66.4, 73.1.4 – 73.1.4.2, 92.2, 92.5, 92.6.1, 92.12
• Refrigerant requirement revisions; 44.1 – 44.4, Section 86A, Section 90B, SB1.2
• Clarifications to barrier requirements; 3.3, 3.4, 5.2.1, 7.1 – 7.2.1, 7.4, 12.1.21, 12.1.26, 12.1.27, 12.1.29, 13.1, 13.3 – 13.6, 14.2, 14.2.1, 16.2, 18.3, 18.4, 20.1, 20.1.1, 41.9, Table 52.1, Table 57.1, A7.2
• Miscellaneous clarifications; 10.1.1, 5.3.1, 5.3.1.1, Table 52.1, 52.3.1, 52.3.2, 73.1.6, 76.8, 76.8.1, A52.3.1
• Revisions for hose assembly requirements for flammability for class 2 and class 3 refrigerants; SB4.1 (title), SB4.1.1, SB4.2.1