In buildings with a fire alarm system, duct smoke detectors shall be connected to the fire alarm system in accordance with Section 907 of the Chicago Building Code.
Exception: In buildings required to be equipped with a fire alarm system, actuation of a smoke detector shall activate a visible and an audible signal in an approved location. Smoke detector trouble conditions shall activate a visible or audible signal in an approved location and shall be identified as air duct detector trouble.
(Amend Coun. J. 4-10-19, p. 100029, Art. XII, § 11; Amend Coun. J. 9-14-21, p. 35949, Art. VI, § 8)