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.
Duct smoke detector installation instructions.
4 when installing on the return side install duct units prior.
The duct smoke detector is equipped with an auxiliary relay.
Duct preparation the duct detectors are designed for use in ducts where the air velocities are from 300 to 4000 feet per minute.
Furthermore intentions for using duct smoke detectors should not be a substitute for area smoke detectors.
Duct smoke detection may be useful in preventing injury and property dam age in instances such as the following.
Smoke detectors designed for use in air duct systems are used to sense the presence of smoke in the duct.
This detection method when combined.
The duct smoke detector is designed for use in duct.
D4120 air duct smoke detector with extended air speed range d4s air duct smoke detector sensor component d4p120 air duct smoke detector power board component installation and maintenance instructions 3825 ohio avenue st.
The ad2 series smoke duct detector should be greater than 0 01 inches of water and less than 1 2 inches of water.
E pdd duct smoke detector installation sheet operation the duct smoke detector s primary purpose is to provide early warning of an impending fire and shut down the hvac unit in order to prevent smoke from circulating throughout the building.
Model d4120 and d4s duct smoke detectors utilize 4 wire photoelectric tech nology for the detection of smoke.
D4120w duct smoke detector installation and maintenance instructions 3825 ohio avenue st.
Smoke introduced into an air duct system will be distributed throughout the entire building.
A heating ventilating or air conditioning hvac fan motor overheats and resulting smoke is sensed by the duct smoke detector installed in the main supply duct.
3 identify a code compliant location supply or return side or both for the installation of the duct unit that will permit easy access for viewing and serviceability.
Therefore they should complement the buildings fire detection system and not serve as the primary fire detection system.
Charles illinois 60174 1 800 sensor2 fax.
