3.2.4.16 — Sprinklers in Lieu of Fire Detectors

(1) Electrical supervision shall be provided for a fire alarm system. (2) If a fire alarm system in a building is required by Sentence 3.2.4.9. (1) to have an annunciator, each valve controlling water supplies in a standpipe system, except for hose valves, shall be equipped with an electrically supervised switch for transmitting a trouble signal to the annunciator in the event of movement of the valve handle. (3) If a fire alarm system is installed in a building, an automatic sprinkler system shall be electrically supervised to indicate a supervisory signal on the building fire alarm system annunciator for each of the following, (a) movement of a valve handle that controls the supply of water to sprinklers, (b) loss of excess water pressure required to prevent false alarms in a wet pipe system, (c) loss of air pressure in a dry pipe system, (d) loss of air pressure in a pressure tank, (e) a significant change in water level in any water storage container used for firefighting purposes, (f) loss of power to any automatically starting fire pump, and (g) a temperature approaching the freezing point in any dry pipe valve enclosure or water storage container used for firefighting purposes. (4) If a fire alarm system is installed in a building, a fire pump shall be electrically supervised in accordance with NFPA 20, “Installation of Stationary Pumps for Fire Protection”. (5) If a fire alarm system is required in a building, electrical supervision shall be provided to indicate, on the fire alarm system annunciator, a loss of power to a heat tracing cable that is installed to heat, (a) a standpipe riser, (b) a sprinkler line as part of a fire suppression system, or (c) an exit or means of egress to keep it free of ice and snow. (6) In a building regulated by the provisions of Subsection 3.2.6., the indication of a supervisory signal in accordance with Sentence (3) shall be transmitted to a proprietary control centre or to an independent central station.

(1) Fire detectors required by this Article shall be connected to the fire alarm system. (2) Except as provided in Article 3.2.4.16., if a fire alarm system is required, fire detectors shall be installed in each, (a) storage room not within a dwelling unit, (b) service room not within a dwelling unit, (c) janitors’ room, (d) room in which hazardous substances are to be used or stored, (e) elevator or dumbwaiter shaft, (f) laundry room in a building of residential occupancy, but not one within a dwelling unit, and (g) hazardous classroom and change room in an elementary or secondary school.

(1) If a fire alarm system is required, smoke detectors shall be installed in, (a) each sleeping room and each corridor serving as part of a means of egress from sleeping rooms in portions of a building classified as Group B major occupancy, (b) each room in a contained use area and corridors serving those rooms, (c) each corridor in portions of a building classified as Group A, Division 1 major occupancy, (d) each public corridor in portions of a building classified as Group C major occupancy, (e) each exit stair shaft, (f) each corridor serving classrooms in elementary and secondary schools, and (g) each elevator machine room or machinery space. (2) Except as provided in Article 3.2.4.16., if a fire alarm system is required, heat detectors shall be installed in, (a) every room in portions of buildings classified as Group A, Division 1, (b) except in a hotel, in every suite, and every room not located within a suite, in portions of buildings classified as Group C major occupancy and more than 3 storeys in building height, and (c) in a floor area containing a hotel, in every room in a suite and in every room not located in a suite other than washrooms within a suite, saunas, refrigerated areas and swimming pools. (3) Smoke detectors required in sleeping rooms of care, care and treatment or detention occupancy shall upon actuation provide an audible and visible signal to staff serving those rooms so that the room or location containing the smoke detector can be easily identified. (4) Smoke detectors required by Clause (1)(g) shall, upon actuation, recall the elevators served by machinery located in the machine room or machinery space in which the smoke detector is installed. (5) Except as permitted by Sentences (6) and (7), where a building is required to be equipped with a fire alarm system, a smoke detector shall be located near the entrance to, (a) a walkway described in Articles 3.2.3.19. and 3.2.3.20., or (b) a vestibule provided in conformance with Article 3.2.6.3. (6) Smoke detectors installed at the entrance to a walkway in conformance with Article 3.1.8.12. are deemed to meet the requirements of Sentence (5). (7) Fire detectors are permitted to be installed in lieu of the smoke detectors required by Sentence (5) in Group F occupancies where the smoke detectors may be subjected to false alarms due to the activities within the building.