2.2.3.3.Design of Fire Alarm Systems

(1) Where a fire alarm system is required by Sentence 2.2.3.1.(1),
  (a) the air-handling system, where provided, shall be designed to prevent the circulation of smoke upon a signal from a
      duct-type smoke detector if the air-handling system serves more than 1 storey, and
  (b) a manual station shall be installed in every floor area near every exit.

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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.