Duct Smoke Detector Installation Location

To ensure correct operation install the duct detector using the following guidelines. Duct smoke detectors should be located in the hvac area between 6 and 10 duct equivalent diameters of straight uninterrupted run. The international mechanical code section 606 2 2 also states that unless multiple air han dling systems share common supply or return air ducts or plenums duct detection is not required in the supply air system.

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Standard location when factory mounted will be on the side opposite the damper actuator.

Duct smoke detector installation location.

Due to smoke dilution in the ducts the duct detectors will respond more slowly than an area detector. In the areas where smoke detectors become inaccessible designers should include smoke detection controls remote from the inaccessible area. The duct detector should when possible be located a minimum of six duct widths downstream from a source of turbulence bends inlets or deflection plates. Prior to the installation of the damper and smoke detector.

If the detector is. For proper air sampling duct pressure should be a minimum of 0 01 inches of water. Designers should also remain aware that duct detectors may not substitute for area smoke detection. We will show you how to wire a system sensor duct smoke detector to a carrier bryant or icp furnace and then configure it s communicating infinity evoluti.

2 6 p n 3101210 rev 02 iss 28jan13. At these locations air flow is less turbulent and the air smoke mixture should be more homogenous refer to nfpa 90a 72 and 101 for more information. Install the duct smoke detector on a flat section of hvac duct between six and ten duct widths from any bends or obstructions. The inlet sampling tube is to be located between blades to avoid blockage of the airflow past the tube.

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