18-28-606.4 Controls operation.
   Upon activation, the smoke detectors shall shut down the air distribution system through a hard-wired interlock between the fans and the smoke detector, not through programming. Air distribution systems that are part of a smoke control system shall be controlled in accordance with Section 909 and Appendix S of the Chicago Building Code.
(Amend Coun. J. 11-9-16, p. 36266, § 36; Amend Coun. J. 4-10-19, p. 100029, Art. XII, § 10; Amend Coun. J. 9-14-21, p. 35949, Art. VI, § 8)