Approved smoke or heat detectors shall be installed in return air ducts or plenums in each recirculating air system serving more than one floor in buildings that exceed six stories in height in accordance with the Mechanical Code listed in Chapter 1826. Actuation of the detector shall stop the fan(s) automatically and shall be of the manual-reset type. Automatic fan shutdown is not required where the system is part of an approved smoke control system.
(Ord. 37-94. Passed 4-11-94.)