Duct Smoke Detector Sampling Tube Installation

Verify this by checking specifications of installation and if necessary use an alnor model 6000p velocity meter or equivalent to check the air. Standard location when factory mounted will be on the side opposite the damper actuator. Sampling tube assembly see figure 2 the duct detectors are designed for use in ducts where the air velocities are from 300 to 4000 feet per minute.

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Location And Installation Of Detectors In Air Duct Systems Fire Alarms Certified

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Duct Smoke Detectors

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Verify this by checking specifications of installation and if necessary use an alnor model 6000p velocity meter or equivalent to check the air velocity.

Duct smoke detector sampling tube installation.

See table 1 on page 3 to determine the inlet tube required for different duct widths. The end cap is needed to cre ate the proper air flow to the sensor of the duct smoke detector. Sensor power board assembly and cover s 2. Prior to the installation of the damper and smoke detector.

Sampling tube installation the ad2 series duct smoke detectors use a specially notched sampling tube which may be ordered separately in one of four standard lengths. Furthermore intentions for using duct smoke detectors should not be a substitute for area smoke detectors. Duct smoke detector a. Sampling tubes install from front or rear of detector compatible with existing accessories 4 contents of the duct smoke detector kit 1.

The sampling tube end cap included with the detector is critical to proper operation of the duct smoke detector. Duct preparation the duct detectors are designed for use in ducts where the air velocities are from 300 to 4000 feet per minute. The inlet sampling tube is to be located between blades to avoid blockage of the airflow past the tube. Once any sampling tube length adjustments are made plug the end of the sampling tube with the provided end cap.

E pdd duct smoke detector installation sheet operation the duct smoke detector s primary purpose is to provide early. For proper air sampling duct pressure should be a minimum of 0 01 inches of water. Three 10 sheet metal screws for mounting 3. Duct detectors smoke detection installation.

4 6 p n 3101210 rev 02 iss 28jan13. St 10 for duct widths of 6 to 1 0 st 25 for duct widths of 1 0 to 3 0 st 50 for duct widths of 3 0 to 5 0 requires support. One sampling tube end cap 5. High performance hvac on march 11 2020 at 10 27 pm.

It must be the correct length for the width of the duct where it will be installed. 4 detector installation 4 1 verify duct air flow direction and velocity. The specified operating range of the detector make sure the sampling tube air holes are not obstructed and are facing the hvac system airflow. Do you know if it is a code requirement to support sampling tubes greater than 3 at the opposite end of the duct detector.

The sampling tube end cap included with the detector is critical to proper operation of the duct smoke detector. Installation instructions for the duct smoke detector a. One plastic exhaust tube. The end cap is needed to create the proper air flow to the sensor of the duct smoke detector.

A sampling tube must be ordered to complete the installation. Once any sampling tube length adjustments are made plug the end of the sampling tube with the provided end cap.