3.2.8.8 — Fire Alarm and Detection System

(1) If a fire alarm system is required to be installed and a single stage system is provided, the system shall be designed to notify the fire department in conformance with Sentence (4) that an alarm signal has been initiated in, (a) a Group A occupancy having an occupant load more than 300, (b) a Group B occupancy, (c) a Group F, Division 1 occupancy, (d) a building regulated by the provisions of Subsection 3.2.6., (e) a building containing interconnected floor space required to conform to Articles 3.2.8.3. to 3.2.8.11., or (f) a retirement home. (2) A fire alarm system that includes waterflow indicating devices shall be designed to notify the fire department, in conformance with Sentence (4), that an alarm has been initiated. (3) If a fire alarm system is required to be installed and a two stage system is provided, the system shall be designed to notify the fire department, in conformance with Sentence (4), that an alert signal has been initiated. (4) Notification of the fire department required by Sentences (1) to (3) shall be by way of, (a) signals to a central station conforming to CAN/ULC-S561, “Installation and Services for Fire Signal Receiving Centres and Systems”, or (b) the municipal fire alarm system. (5) Where a single stage fire alarm system is installed in a building that is not sprinklered, and Sentence (1) does not apply, a legible notice, that is not easily removed, shall be affixed to the wall near each manual pull station stating, (a) that the fire department is to be notified in the event of a fire emergency, and (b) the emergency telephone number for the municipality or the telephone number of the fire department.

(1) In buildings constructed in conformance with Articles 3.2.8.4. to 3.2.8.11., the unprotected openings through floor assemblies in an interconnected floor space shall be of sufficient size and shall be positioned relative to each other so as to be capable of containing, within the full height of the interconnected floor space, a cylinder conforming to Sentence (2). (2) The cylinder referred to in Sentence (1) shall have a cross-section that, where taken at a right angle to the longitudinal axis of such cylinder, is, (a) a circle at least 9 m in diameter, or (b) an ellipse at least 7 m wide along the minor axis and at least 65 m2 in area.

(1) A smoke control system conforming to Sentences (2) to (8) shall be designed to control the movement of smoke within a building containing an interconnected floor space. (2) The design of the smoke control system shall assume an outdoor temperature equal to the January design temperature on a 2.5% basis. (3) Upon activation of the sprinkler system or automatic detection of smoke by at least two smoke detectors in a single zone within an interconnected floor space, the system shall, (a) stop air moving fans that provide for the normal exhausting or re-circulating of air in an interconnected floor space, (b) activate exit stairshaft protection required in Article 3.2.8.4., (c) activate elevator protection required in Article 3.2.8.5., and (d) activate the vestibule air supply required in Sentence 3.2.8.6. (1). (4) A building containing an interconnected floor space may be designed so that, in the event of a fire arising in a floor area or part of a floor area within the interconnected floor space, automatic detection of such fire will activate air handling equipment that, (a) extracts air directly from such floor area or part of a floor area at the rate of at least six air changes per hour, and (b) supplies air in sufficient quantities and at appropriate locations to prevent smoke from passing out of such floor area into other portions of the interconnected floor space. (5) For purposes of Sentences (6) and (7), the volume of an interconnected floor space need not include the aggregate volume of those floor areas or portions of floor areas designed to have zoned air extraction in accordance with Sentence (4). (6) A mechanical exhaust shall be provided to remove air at the top of an interconnected floor space at the rate of at least six air changes per hour, except that where the volume of the interconnected floor space exceeds 17 000 m3, only four air changes per hour need be provided. (7) Except where zoned mechanical exhaust described in Sentence (4) has been activated, upon automatic detection of smoke within the volume of the interconnected floor space, the mechanical exhaust described in Sentence (6) shall be automatically activated and supply air shall be provided in sufficient quantity and at appropriate locations to allow a consistent rate of removal of smoke throughout the volume of the interconnected floor space. (8) Overriding manual controls for the smoke control system shall be provided for fire department use at an acceptable location in the vicinity of the fire alarm annunciator.