Smoke detectors designed for use in air duct systems are used to sense the presence of smoke in the duct.
Duct smoke detector installation guidelines.
The installation of smoke detectors and other related requirements is intended to prevent the distribution of smoke through the supply air duct system and preferably to exhaust a significant quantity of smoke to the outside.
1 below we share our tips for safely selecting maintaining and installing these handy safety devices.
2 6 p n 3101210 rev 02 iss 28jan13.
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.
Verify this by checking specifications of installation and if necessary use an alnor model 6000p velocity meter or.
Install the duct smoke detector on a flat section of hvac duct between six and ten duct widths from any bends or obstructions.
Chapter 6 4 covers locations for duct smoke detectors used for automatic fan shutdown and also lists exceptions exemptions.
The updated planning and implementing a successful smoke alarm installation program pdf is a comprehensive guide including everything you ll need to get started from tips on how to select volunteers to.
Duct smoke detection can also serve to protect the air conditioning system itself from fire and smoke damage.
When properly installed and maintained they can alert you to trouble at the first whiff of smoke and reduce the risk of death by half.
This detection method when combined.
Duct preparation the duct detectors are designed for use in ducts where the air velocities are from 300 to 4000 feet per minute.
Model d4120 and d4s duct smoke detectors utilize 4 wire photoelectric tech nology for the detection of smoke.
Installation instructions for the duct smoke detector a.
Consult nfpa 90a nfpa 72 and local codes to determine where smoke detectors are required.
Fad 325 v2f r duct housing with the fad 325 v2f dh analog photoelectric smoke sensor relays installation instructions for the duct smoke detector a.
Check into nfpa 90a standard for the installation of air conditioning and ventilating systems for installation requirements.
To ensure correct operation install the duct detector using the following guidelines.
A smoke alarm installation program in your community can make a measurable difference in reducing deaths and injuries from fire.
Therefore they should complement the buildings fire detection system and not serve as the primary fire detection system.
Smoke detectors are one of your first defenses to stay safe from fire and reduce damage.
Installation instructions for duct smoke detectors mounted on combination fire smoke or smoke dampers ii detector 04 12.
