Life-safety dampers are critical fire-protection features of buildings. By protecting duct and air-transfer-opening penetrations through fire- and smoke-rated construction, they help to contain fire ...

The motorized damper (TMD520) is designed to introduce fresh air into the building envelope through an intake damper that is controlled by the microprocessor-based ventilation control interface. The ...

THIS column provides information about the use of outdoor air dampers in hot and humid climates and during hot and humid seasons in temperate climates in commercial buildings. Terms used in this ...