Summary of Topics can-ulc-s561-2022-en_sum.htmlSummary of Topics
This revision of CAN/ULC-S561 dated June 9, 2022 includes the Verification of Fire Signal Receiving Equipment and a Clarification of Testing Requirements for Waterflow, Fire Alarm Control Units and other Alarm Initiating Devices; 11.6 and 12.4.1.2.