Nfpa 72 also states that a duct smoke detector is not allowed to replace an area smoke detector mainly because if the air handling unit ahu is not running the detector would not detect smoke.
Duct smoke detector.
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Duct smoke detectors are a key component of fire detection and fire alarm systems.
Duct smoke detection nfpa 90a code requirements there are exceptions to the two basic requirements.
Tool free plug in sampling tubes speed and simplify installation.
Hvac duct smoke detection.
The duct smoke detector should be compatible with building automation and fire alarm systems.
Innovairflex duct smoke detectors combine an impressive collection of innovations designed to save you time and money and provide the flexibility you need in the field.
The duct smoke detector is designed for use in duct applications where temperatures can exceed standard detector.
Duct detectors aren t a replacement for room sensors.
An adjustable housing overcomes mounting constraints.
The duct smoke detector s primary purpose is to provide early warning of an impending fire and shut down the hvac unit in order to prevent smoke from circulating throughout the building.
A duct smoke detector should shut off a typical blower and fresh air and turn on the exhaust.
Plug in tool free sampling tubes speed installation.
Typical smoke detection devices used for duct application include smoke detector sensors within a housing mounted.
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.
These fans are excluded from the above requirements and.
Innovairflex duct smoke detectors combine an impressive collection of innovations to greatly simplify hvac system monitoring.
One unit can accommodate multiple installation footprints to overcome mounting constraints.
Duct smoke detection equipment a duct smoke detector is a device or group of devices used to detect the presence of smoke in the airstream of ductwork sections of the hvac air handling systems typically used in commercial buildings.