System Sensor 4WT-B EngSpec

Product Smoke Detector Specifications detector shall be a System Sensor i3 Series model number 4WT B listed to Underwriters UL 268 for Fire Protection Signaling Systems The detector shall be a combination type detector with thermal sensor rated at 135 57.2 The detector include a mounting base for mounting to 3 and 4 inch octagonal single gang and 4 square back boxes with a plaster ring or direct mount to the ceiling using drywall anchors connections shall be made by means of SEMS screws The detector shall allow pre wiring the base and the head shall be a plug in type The detector shall have a nominal sensitivity of percent per foot nominal as measured in the UL smoke box The detector shall be capable of adjusting its sensitivity by means of drift compensation and smoothing algorithms detector shall provide dual color LED indication which blinks to indicate power up normal out of sensitivity alarm and freeze trouble conditions Specifications 4WT B Operating Voltage shall be Nominal 12 24V non polarized Minimum 8.5V 35V The Maximum Ripple Voltage shall be 30 peak to peak of applied voltage The Current shall be 50 maximum average The Maximum Alarm Current shall be 20 mA 12V 23mA 24V The Alarm Contact Ratings shall be 0.5 A 30V AC DC Specifications 4WT B dimensions including base shall be 5.3 inches 134 mm diameter 2.0 inches 51 height The 4WT B detector weight shall be 6.3 oz 178 grams The 4WT B detector Temperature Range shall be 32 0 The 4WT B Operating Range shall be 0 to 95 RH non condensing The 4WT B Thermal Sensor shall be 57.2 fixed The 4WT B Freeze Trouble shall be 41 5 The 4WT B Sensitivity be 2.5 ft nominal The 4WT B Input Terminals shall be 14 AWG options for the 4WT B detector include 3 octagonal back box 4 inch octagonal box Single gang back box 4 inch square back box with a plaster ring or direct mount to Modes Power up the Green LED shall blink every 10 seconds the Red LED shall blink every 10 In Normal standby mode the Green LED shall blink every 5 seconds the Red LED be off In Out of sensitivity mode the Green LED shall be off the Red LED shall blink every seconds In Freeze trouble mode the Green LED shall be off the Red LED shall blink every 10 In Alarm mode the Green LED shall be off the Red LED shall be solid 2009