Summary of Topics s1996_4_sum.htmlSUMMARY OF TOPICS
This revision of ANSI/UL 1996 dated August 7, 2020 includes the following changes in requirements:
Revisions to the control requirements; 3.8.2.1, 3.8.3.1, 21.1, 22.5, 23.3.2
Revisions covering duct heaters employed in ductwork that contain flammable refrigerants; 23.4, 46.12