Install supply side detectors at a point downstream from the supply fan and after the air filter.
Duct smoke detector installed.
The duct smoke sensors are installed in the air duct system to detect any smoke in the duct.
The international mechanical code imc specifies that if the space is air conditioned and the a c unit is over 2 000 cfm a duct smoke detector is required to be installed in the return air duct.
Energize the duct detector.
Hvac duct smoke detection.
Install the duct smoke detector on a flat section of hvac duct between six and ten duct widths from any bends or obstructions.
Innovairflex duct smoke detectors combine an impressive collection of innovations to greatly simplify hvac system monitoring.
With power source de energized and the smoke detector not installed wire all connections per engineering drawings.
Refer to the applicable figures below depending on your duct housing model number.
Nor should it serve as an early warning detection system.
One plastic exhaust tube note.
Three 10 sheet metal screws for mounting 3.
Therefore they should complement the buildings fire detection system and not serve as the primary fire detection system.
One sampling tube end cap 5.
Both nfpa 90 and imc 606 2 1 state similar things that can be summarized and paraphrased as if the duct system is designed for more than 2000 cfm the system must have a duct smoke detector installed and if the duct system is designed for more than 15 000 cfm one in the return and supply is required.
A sampling tube must be ordered to complete the installation.
Install return side detectors at a point before the return air stream is diluted by outside air.
Sensor power board assembly and cover s 2.
Duct detectors smoke detection installation furthermore intentions for using duct smoke detectors should not be a substitute for area smoke detectors.
One unit can accommodate multiple installation footprints to overcome mounting constraints.
The air handling system which is installed in these sensors block the recirculation of smoke in such areas.
4 contents of the duct smoke detector kit 1.
With all wiring in place install the detector head.
Tool free plug in sampling tubes speed and simplify installation.
