E pdd duct smoke detector installation sheet operation 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.
Duct smoke detector connection.
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.
The duct smoke detector is designed for use in duct.
Assortment of duct smoke detector wiring diagram.
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.
A wiring diagram is a simplified traditional photographic depiction of an electric circuit.
Therefore they should complement the buildings fire detection system and not serve as the primary fire detection system.
Duct smoke detector the innovairflex series are the only duct smoke detectors flexible enough to fit configurations from square to rectangular and everything in between.
Features 4 wire photoelectric integrated low flow technology air velocity rating from 100 ft min to 4 000 ft min 0 5 m s to 20 32 m sec.
It reveals the elements of the circuit as streamlined shapes and also the power and also signal connections between the devices.
How to installation air duct smoke detector.
Duct detectors aren t a replacement for room sensors.
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.
Install the duct smoke detector on a flat section of hvac duct between six and ten duct widths from any bends or.
The detector assembly cover provides easy access to the smoke sensor its wiring connections sample and exhaust tube fittings and the smoke chamber itself.
Therefore duct smoke detectors are typically considered mechanical equipment devices instead of life safety devices.