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' <br /> ' <br /> �j�Smoke Detector Specifications <br /> ' Smoke detector shall be a System Sensor i3 Series model number listed to Underwriters Laboratories UL 268 for Fire Protection Signaling Systems.The <br /> de[ecror shall be a photoelectric type(Model 2W-B,4W-B)or a combination photoelectridthermal(Model 2W I-B,4W i-B)with therrnal sensor rated at 135°F <br /> (57.2°�).The detector shall include a mounting base for mounting to 3Yz-inch and 4-inch octagonal,single gang,and 4 inch square back boxes with a plaster <br /> , ring,or direct mount to the ceiling using drywall anchors.Wiring connections shall be made by means of SEMS screws.The detector shall allow pre-wiring of the <br /> base and the head shall be a plug-in type.The detector shall have a nominal sensitivity of 25 percent-per-foot nominal as measured in the UL smoke box.The <br /> detector shall be capable of automatically adjusting its sensitivity by means of drift compensation and smoothing algorithms.The detector shall provide dual- <br /> color LED indication that blinks to indicate power up,normal standby,out of sensitivity,alarm,and freeze trouble(Model 2WT-B,4WT-B)conditions.When used <br /> � in conjunction with the 2W-MOD2 module,2-wire models shall indude a maintenance signal to indicate the need for maintenance at the alarm control panel <br /> and shall provide a loop testing capabiliry to verify the circuit without testing each detector individually. <br /> Operating Voltage Nominal: 12/24 V non-polarized <br /> � Minimum: 8.5 V <br /> Maximum:35 V <br /> Maximum Ripple Voltage 30%peak to peak of applied voltage <br /> Standby Current 2-wire:50 uA maximum average;4-wire:50 uA maximum average <br /> ' Maximum Alarm Current 2 wire:130 mA limited by control panel;4-wire:20 mA @12 V,23 mA(�24 V <br /> Peak Standby Current 2-wire:100�A;4-wire:n/a <br /> Alarm Contact Ratings 2-wire:n/a;4-wire:OS A@ 30V ACJDC <br /> � Dimensions(induding base) 53 inches(127 mm)diameter;2.0 inches(51 mm)height <br /> Weight 63 oz(178 g) <br /> Operating Temperature Range 1W-B and 4W-B:32 F to 120°F(0°C to 49°C);2WT-B and 4W I-B:32°F to 100°F(0°C to 3/8°�) <br /> ' Opereting Humidity Range 0 ro 95%RH non-condensing <br /> Thermal Sensor 135°F(57.2'C)fixed <br /> FreezeTrouble 2WT-B and 4WT-B only:41°F(5°Q <br /> � Sensitivity 2.5%/ft nominal <br /> InputTerminals 14 to 22 AWG <br /> Mounting 3�z inch octagonal back box <br /> 4 inch octagonal back box <br /> ' Single-gang back box <br /> 4-inch square back box with a plaster ring <br /> Direct mount to ceiling <br /> � - � <br /> � LED Mode Green LED Red LED Condition Duration <br /> Power up Blink every 10 seconds Blink every 10 seconds Initial LED status indication 80 seconds <br /> Normal(standby) Blinkevery5seconds o(f <br /> Out of sensltiviry off Blink every 5 seconds <br /> � Freeze trouble off Blink every 10 seconds <br /> Alarm of( Solid <br /> ' Ordering Information <br /> 2W-B No 2 wire 130 mA max.limited by control panel <br /> , 2WT-B Yes 2-wire 130 mA max.limited by control panel <br /> 4W-B No 4-wire 20 mA @ 12 V,23 mA @ 24 V <br /> 4WT-B Yes 4-wire 20 mA @ 12 V,23 mA @ 24 V <br /> Accessories <br /> , 2W-MOD2 2-wire loop test/maintenance module RT Removal/replacement tool <br /> SENS-RDR Sensitivity reader A77-AB2 Retrofit adapter bracket,6.6 inch(16J6 cm)dlameter <br /> � <br /> �� SYSTEM ���o5sy=�em���=o� <br /> ' 3825 Ohio Avenue•St Chdrles,IL 60174 v�oacasoF<a<anooss�bieaco�na�ye�Mmo�enon�em�icsysce��se�so�so��ro� <br /> �� SENSOR ,e��a��«��fo�ma��o�,,����d��9�he�are=����s,��of�h�s�a�a=h��. <br /> Phone:800-SFNSOR2•Fax:630-377-6495 nos-0aie-co�•eio9•,zie9 <br /> � <br />