Duct Detector Test Switch Location

Cover magnet activated test switch or by the optional remote test station.

Duct detector test switch location.

The duct smoke detector is designed for use in duct applications where temperatures can exceed standard detector capabilities. The wiring diagram graphics here are for illustration purposes only. Hvac duct smoke detection. The duct smoke detector latches into alarm state when an alarm occurs.

For 4 wire detectors the rts151key test station features a multi colored led that alternates between steady green and red. The d4120 and d4p120 can be reset by a momentary power interrup. The d4120 and d4p120 leds indicate the status of power maintenance trouble and local alarm conditions. Innovairflex duct smoke detectors combine an impressive collection of innovations to greatly simplify hvac system monitoring.

Always follow duct detector manufactures instructions and code for wiring. For 2 wire detectors the led illuminates red for alarm. The rts151 and rts151key remote test stations are automatic fire detector accessories designed to test duct smoke detectors from a convenient location. Tool free plug in sampling tubes speed and simplify installation.

Since the requirement for tying in duct detectors is in 907 fire alarm and detection systems the duct detector rule 907 11 doesn t apply to what you re doing. Yes if the duct detector cannot be reset at the facp or annunciator then a separate test reset station will need to be installed for resetting the duct detector per nfpa 72 section 23 8 5 4 6 4. 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. 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.

One unit can accommodate multiple installation footprints to overcome mounting constraints. Air is introduced to the duct smoke detector s sensing chamber through a sampling tube that ext ends into the hvac duct and is directed back into the ventilation system through an exhaust tube. Firstly it is important to follow all the instruction provided with the new duct detector.