System Sensor 2312 24TB Manual

INSTALLATION AND MAINTENANCE INSTRUCTIONS MODEL 2312 24TB installing detectors please thoroughly read System Sensor Manual I56 407 XX Guide for Proper Use of System Smoke which provides detailed information on detector spacing placement zoning wiring and special applications Copies of this are available at no charge from System Sensor DESCRIPTION 2312 24TB is a 4 wire combination smoke heat detector In addition to photoelectronic smoke detection two supervised elec thermistors provide restorable 135 fixed temperature heat detection The installation is simplified by the use of an adaptor and a plug in screw terminal block which can be pre wired to the system allowing the detector to be easily installed or removed cleaning It is designed to provide open area protection and to be used with UL listed 4 wire control panels The detector sen can be tested in place using the MOD400R field sensitivity test module 2312 24TB is listed to UL 268 and is a latching type system detector When latched in alarm the detector must be reset by a power interruption LED on the detector provides a local indication of the detector status If power is applied to the detector and the detector is properly in standby the status LED will blink every 10 seconds The detector performs a self test on its smoke sensing and internal electronics every 40 seconds If this test fails the detector stops blinking the status LED in standby and the will remain off In alarm the LED will be latched on continuously until the detector is reset 5.5 inches 14 cm 2.5 inches 6.4 cm 0.7 lb 310 gm Temperature Range 0 to 38 C 32 to 100 F Humidity Range 10 to 90 Relative Humidity Non condensing Alarm Reset by momentary power interruption Feature Recessed test switch Air Velocity 3000 Ft Min 15 Meters Sec Nominal 3 Ft Sensor 135 Fixed Temperature Electronic Thermistor RATINGS Voltage nominal 12 or 24 VDC minimum 8.5 VDC maximum 35 VDC Ripple Voltage 30 of nom Voltage peak to peak Current 120 max Current 10mA minimum 50mA maximum Voltage 0.8 VDC minimum Time 6 Sec maximum Time 34 Sec maximum After 60 Sec Reset relay A77 716B 12 24 Volt INITIATION CONTACT RATINGS or inductive load 60 power factor A 2.0A 30 VAC DC 1 2312 24TB Smoke Heat Detector I56 431 06 Sensor 3825 Ohio Avenue St Charles Illinois 60174 1 800 SENSOR2 FAX 708 377 6495 2312 24TB detector is supplied with a mounting bracket that permits the detector to be mounted To a single gang box or Directly to a 3 1 2 inch or 4 inch octagonal box or To a 4 inch square electrical box by using a plaster ring 2 2312 24TB smoke detector mounting bracket RESISTANCE detector includes a tamper resistant capability that prevents its removal from the bracket without the use of a tool To make the tamper resistant remove the smaller tab by breaking it at the scribed line on the tamper resistant tab before installing the The tamper resistant tab is on the detector mounting bracket remove a tamper resistant detector from the bracket use a pocket screwdriver or similar tool to depress the tamper resistant tab turn the detector counterclockwise The tab is accessible through the slot on the mounting bracket INSTALLATION GUIDELINES wiring must be installed in compliance with the National Electrical Code applicable local codes and any special requirements of local authority having jurisdiction Proper wire gauges should be used The conductors used to connect smoke detectors to control and accessory devices should be color coded to prevent wiring mistakes Improper connections can prevent a system from properly in the event of a fire screw terminal block will accept 14 22 gauge wire For best system performance all wiring should be installed in separate conduit do not mix fire system wiring in the same conduit as any other electrical wiring Twisted pair may be used to provide protection against extraneous electrical interference detectors and alarm system control panels have specifications for allowable loop resistance Consult the control panel specifications for the total loop resistance allowed for the particular model control panel being used before wiring the loops connections are made by stripping about 1 4 inch of insulation from the end of the feed wire inserting the wire into the appropri terminal and tightening the screw to secure the wire in place