TDS PDF

Single and Multiple Station Heat Alarms (Edition 8, June 23, 2022). Original standard UL 539 2022-06 in PDF full version. Additional info + preview on request

Document status: Replaced by St UL 539 2025-01

Remote Software Updates (Edition 1, September 6, 2018). Original standard UL 5500 2018-09 in PDF full version. Additional info + preview on request

Document status: Replaced by St UL 5500 2026-07

Fire Dampers (Edition 7, published July 12, 2006; revisions through October 9, 2020). Original standard UL 555 2020-10 in PDF full version. Additional info + preview on request

Document status: Replaced by St UL 555 2026-02

Ceiling Dampers (Edition 4, published December 16, 2014; revisions through January 21, 2021). Original standard UL 555C 2021-01 in PDF full version. Additional info + preview on request

Document status: Replaced by St UL 555C 2025-06

Smoke Dampers (Edition 5, published February 13, 2014; revisions through October 9, 2020). Original standard UL 555S 2020-10 in PDF full version. Additional info + preview on request

Document status: Replaced by St UL 555S 2025-06

Ice Makers (Edition 8, published July 31, 2009; revisions through May 26, 2021). Original standard UL 563 2021-05 in PDF full version. Additional info + preview on request

Document status: Replaced by