4 6 p n 3101210 rev 02 iss 28jan13.
Duct smoke detector sampling tube installation.
A sampling tube must be ordered to complete the installation.
One sampling tube end cap 5.
Installation instructions for the duct smoke detector a.
Three 10 sheet metal screws for mounting 3.
Sensor power board assembly and cover s 2.
High performance hvac on march 11 2020 at 10 27 pm.
For proper air sampling duct pressure should be a minimum of 0 01 inches of water.
The end cap is needed to cre ate the proper air flow to the sensor of the duct smoke detector.
Duct smoke detector a.
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.
Sampling tubes install from front or rear of detector compatible with existing accessories 4 contents of the duct smoke detector kit 1.
Once any sampling tube length adjustments are made plug the end of the sampling tube with the provided end cap.
Once any sampling tube length adjustments are made plug the end of the sampling tube with the provided end cap.
Verify this by checking specifications of installation and if necessary use an alnor model 6000p velocity meter or equivalent to check the air.
The specified operating range of the detector make sure the sampling tube air holes are not obstructed and are facing the hvac system airflow.
4 detector installation 4 1 verify duct air flow direction and velocity.
The inlet sampling tube is to be located between blades to avoid blockage of the airflow past the tube.
Prior to the installation of the damper and smoke detector.
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.
Duct detectors smoke detection installation.
See table 1 on page 3 to determine the inlet tube required for different duct widths.
Standard location when factory mounted will be on the side opposite the damper actuator.
Furthermore intentions for using duct smoke detectors should not be a substitute for area smoke detectors.
The sampling tube end cap included with the detector is critical to proper operation of the duct smoke detector.
One plastic exhaust tube.
Verify this by checking specifications of installation and if necessary use an alnor model 6000p velocity meter or equivalent to check the air velocity.
It must be the correct length for the width of the duct where it will be installed.
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.
Do you know if it is a code requirement to support sampling tubes greater than 3 at the opposite end of the duct detector.
