Since SMACNA published the first edition of the “Fire, Smoke and Radiation Damper Installation for HVAC Systems” many changes have occurred in concepts of fire protection. Emphasis on use of duct systems in engineered smoke control modes as outlined in ASHRAE and National Fire Protection Association (NFPA) publications is now a key consideration for HVAC system engineers. Such concepts depart from the traditional practice of automatic shutdown of duct systems and create new perspectives on… Read More