DUCT SMOKE DETECTOR, ROOM SMOKE DETECTOR, DUCT SMOKE DETECTOR ACI, DUCT SMOKE DETECTOR APOLLO, DUCT SMOKE DETECTOR DWYER, DUCT SMOKE DETECTOR VCP, SMOKE DETECTOR HOCHIKI, SMOKE DETECTOR KOREA, SMOKE DETECTOR GERMANY.

Duct Smoke Detectors are a key component of Fire Detection and Fire Alarm systems. The duct smoke detector samples air for early detection of smoke and products of combustion present in air moving through HVAC ducts. The Duct Smoke Detector should be compatible with Building Automation and Fire Alarm systems. Duct Smoke Detectors use Ionization or Photoelectric sensing technology.

IONIZATION  Duct Smoke Detectors react to changes in ionized particles. Ionization technology is generally more sensitive than Photoelectric at detecting small particles which tend to be produced by FLAMING FIRES. These fires spread and consume combustible materials rapidly.

PHOTOELECTRIC  Duct Smoke Detectors react to how smoke affects light and are generally more sensitive than Ionization at detecting large particles. These particles are produced in greater amounts by SMOLDERING FIRES, which may smolder for hours before bursting into flames.

Purpose of Duct Smoke Detection National and local safety standards and codes recognize the ability of air duct systems to transfer smoke, toxic gases, and flame from area to area. Sometimes smoke can be of such quantity as to be a serious hazard to life safety unless blowers are shut down and dampers are actuated. The primary purpose of duct smoke detection, then, is to prevent injury, panic, and property damage by reducing the spread (recirculation) of smoke. Duct smoke detection can also serve to protect the air conditioning system itself from fire and smoke damage, and can be used to assist in equipment protection applications, for example, in the ventilation/ exhaust duct work of mainframe computers and tape drives.