System Sensor 4WTR-B EngSpec

Product Smoke Detector Specifications detector shall be a System Sensor i3 Series model number 4WTR B listed to Laboratories UL 268 for Fire Protection Signaling Systems The detector shall be a photoelectric thermal detector The detector shall include a mounting base for to 3 and 4 inch octagonal single gang and 4 inch square back boxes with a ring or direct mount to the ceiling using drywall anchors Wiring connections shall be by means of SEMS screws The detector shall allow pre wiring of the base and the head be a plug in type The detector shall have a nominal sensitivity of 2.5 per foot nominal as in the UL smoke box The detector shall be capable of automatically adjusting its by means of drift compensation and smoothing algorithms The detector shall provide color LED indication which blinks to indicate power up normal standby out of sensitivity and freeze trouble conditions Specifications Operating Voltage shall be Nominal 12 24V non polarized Minimum 8.5V Maximum 35V Maximum Ripple Voltage shall be 30 peak to peak of applied voltage The Standby Current be 50 maximum average The Maximum Alarm Current shall be 35 mA The Alarm Ratings shall be 0.5 A 30V AC DC Specifications 4WTR B dimensions including base shall be 5.3 inches 134 mm diameter 2.0 inches 51 height The approximate detector weight shall be 7.1 oz 200 grams The 4WTR B Operating Temperature Range shall be 32 0 The 4WTR B Humidity Range shall be 0 to 95 RH non condensing The 4WTR B Thermal Sensor be 135 57.2 fixed The 4WTR B Freeze Trouble shall be 41 5 The 4WT B shall be 2.5 ft nominal The 4WTR B Input Terminals shall be 14 AWG options for the 4WTR 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