Selection of fire damper temperature ratings and other damper control temperature ratings shall be so that smoke removal is not impaired.
A. Dampers shall have a minimum smoke rating of Class II as per the 1989 U.B.C. Standard 43-12.
B. Where equipment is used for smoke removal and located in the air stream, such as air ducts, shafts, or plenum ceiling areas, the devices used shall have a temperature rating equal to, or greater than, the maximum working temperature that could be encountered under removal conditions. These devices shall include, but not be limited to, motorized dampers, air-volume controls, pneumatic piping and wiring. (Prior code §§ 9.28.1252, 15.13.1306)