If the duct system is designed to carry more than 2000 cfm 5 tons nominal of air you need one in the return if imc is being followed and the supply if nfpa is being followed.
Hvac duct smoke detector.
Plug in tool free sampling tubes speed installation.
An adjustable housing overcomes mounting constraints.
The duct smoke detector should be compatible with building automation and fire alarm systems.
Hvac duct smoke detection.
Duct detectors aren t a replacement for room sensors.
Therefore they should complement the buildings fire detection system and not serve as the primary fire detection system.
Nfpa 72 also states that a duct smoke detector is not allowed to replace an area smoke detector.
The duct smoke detector samples air for early detection of smoke and products of combustion present in air moving through hvac ducts.
Tool free plug in sampling tubes speed and simplify installation.
Innovairflex duct smoke detectors combine an impressive collection of innovations to greatly simplify hvac system monitoring.
A duct smoke detector should shut off a typical blower and fresh air and turn on the exhaust.
Duct smoke detectors are a key component of fire detection and fire alarm systems.
Furthermore intentions for using duct smoke detectors should not be a substitute for area smoke detectors.
Nor should it serve as an early warning detection system.