PART 2 — RESERVEDUpdated for the 2024 Ontario Building Code
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2.2.3.5.Silencing of Alarm Signals
(1) The fire alarm system required by Sentence 2.2.3.1.(1) shall
(a) be designed so that when an alarm signal is actuated, it cannot be silenced automatically before a period of time has
elapsed that is not less than 20 min, and
(b) not incorporate manual silencing switches other than those installed inside the fire alarm control unit.
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Code text is reproduced for reference from the Ontario Building Code (O. Reg. 163/24, 2024 Building Code Compendium). This page is provided for general information and is not an official copy. Always verify requirements against the official Ontario Building Code and confirm with your local building department.