System Sensor 2112 24S and 2112 24TS

3825 Ohio Avenue St Charles Illinois 60174 FAX 630 377 6495 AND MAINTENANCE INSTRUCTIONS and 2112 24TS Smoke Detectors including mounting bracket Temperature Range inches 140 mm inches 48 mm oz 150 g 2112 24S 2112 24TS Humidity Range Alarm Sensor 2112 24TS only Ratings Voltage nominal Ripple Voltage Current Current Voltage Time Time Relay Initiation Contact Ratings to 120 F 0 to 50 C to 100 F 0 to 38 to 93 Relative Humidity Noncondensing by momentary power interruption F Fixed Temperature Electronic Thermistor or 24 VDC VDC VDC of nom Voltage peak to peak maximum mA typical 23 mA max at 12V mA typical 25 mA max at 24V VDC minimum seconds maximum seconds maximum after 60 sec reset 12 24 Volt or Inductive Load 60 power factor A 30 VAC DC Installing thoroughly read the System Sensor manual I56 407 for Proper Use of System Smoke Detectors which pro detailed information on detector spacing placement wiring and special applications Copies of this are available at no charge from System Sensor of these detectors is simplified by the use of a bracket and a plug in screw terminal block that be prewired to the system allowing the detector to be installed or removed for cleaning The detector sen can be tested in place using the MOD400R Test This manual shall be left with the owner user of equipment This detector must be tested and maintained NFPA 72 requirements The detector should be at least once a year Description 2112 24S is a 4 wire photoelectronic smoke detector uses a state of the art optical sensing chamber This is designed to provide open area protection Model features a restorable built in fixed temperature F thermal detector LED on the detector provides a local visual indication of detector status If power is applied to the detector and is functioning normally in standby mode within the listed ranges the status LED blinks once every ten sec The LED also provides a visual indication that main is required If the LED stops blinking the detector either not powered out of the listed sensitivity range unable to function properly The test switch will not if the detector is below the insensitive limit The will also latch on when the detector is in alarm 1 Surface mounting of 2112 24S smoke on 31 2 inch and 4 inch octagonal box grounded conduit Do not mix fire system wiring the same conduit as any other electrical wiring Twisted may be used to provide additional protection against interference detectors and alarm system control panels have for allowable loop resistance Consult the panel specifications for the total loop resistance al for the control panel being used before wiring the loops 2112 24S and 2112 24TS detector is supplied with a bracket that permits the detector to be mounted To a single gang box or Directly to a 31 2 inch or 4 inch octagonal box or To a 4 inch square electrical box by using a plaster ring Directly to the ceiling using drywall anchors if permit by local codes and or the authority having jurisdic Feature detector includes a tamper resistant feature that pre its removal from the bracket without the use of a tool make the detector tamper resistant remove the smaller by breaking it at the scribed line on the tamper resistant on the detector mounting bracket see Figure 2 then the detector To remove the detector from the bracket it has been made tamper resistant use a small screw to depress the tamper resistant tab located in the on the mounting bracket and turn the detector coun Installation Guidelines wiring must be installed in compliance with the Na Electrical Code applicable local codes and any spe requirements of the local authority having jurisdiction wire gauges should be used The conductors used to smoke detectors to control panels and accessory should be color coded to reduce the likelihood of errors Improper connections can prevent a system responding properly in the event of a fire screw terminal block accepts 14 22 gauge wire For system performance all wiring should be installed in connections are made by stripping about 1 4 inch of from the end of the feed wire inserting the wire the appropriate terminal and tightening the screw to the wire in place power from the control unit or initiating device cir before installing detectors Wire the plug in screw terminal block per Figure 3 and the terminal block into the detector Align the arrows on the detector with the arrows on the Turn the detector clockwise in the mounting bracket un bracket it clicks into place After all detectors have been installed apply power to control unit or initiating device circuits Test the detector as described in TESTING See page 3 Reset the detector at the system control panel Notify the proper authorities the system is in operation covers are an effective way to limit the entry of dust smoke detector sensing chambers However they may completely prevent airborne dust particles from enter the detector Therefore System Sensor recommends the of detectors before beginning construction or other producing activity Be sure to remove dust covers from sensors that were left in place during construction as of returning the system to service 2 2112 24S and 2112 24TS smoke detector mounting bracket SLOT TAB TO DETECTOR RESISTANT TAB CUT OFF SMALL TAB TO ACTIVATE TAMPER RESIST FEATURE E R V A 3 Wiring diagram for the 2112 24S and 2112 24TS detector LISTED POWER SHOWN 12 24V RESISTOR BY