System Sensor Horn EngSpec

Architects and Engineering Specification Advance Wall Horn horn appliance shall be System Sensor model The horn shall be listed to UL 464 and be approved for fire protective service The horn shall have three audibility options and an option to between a temporal three pattern and a non temporal continuous pattern These options are set a multiple position switch The Horn shall operate between 32 and 120 The appliance shall mount a standard 4 4 1 back box 4 inch octagon back box double gang back box or single gang or 4 17 back box A universal mounting plate shall be used for mounting ceiling and wall shall be plug in and shall have the ability to check wiring continuity via a shorting spring on the mounting plate The shorting spring shall also provide tamper resistance via an open circuit if the is removed The notification appliance circuit wiring shall terminate at the universal mounting plate horn and the Sync MDL3 Module accessory if used shall be powered from a notification circuit output and shall operate on a nominal 12 or 24 volts includes fire alarm panels with built sync When used with the Sync Module MDL3 12 volt rated notification appliance circuit shall operate between 8.5 and 17.5 volts 24 volt rated notification appliance circuit outputs shall between 16.5 to 33 volts If the notification appliances are not UL 9th edition listed with the panel or power supply being used then refer to the compatibility listing of the panel to maximum devices on a circuit notification appliances shall be backward compatible