System Sensor 2400 and 2400TH Manual

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INSTALLATION AND MAINTENANCE INSTRUCTIONS and 2400TH Direct Wire Smoke Detectors 3825 Ohio Avenue St Charles Illinois 60174 FAX 630 377 6495 5.5 inches 140 mm 3.14 inches 80 mm Add 0.5 inches 13 mm for 2400TH 0.7 lb 310 gm Temperature Range Model 2400 0 to 49 32 to 120 Model 2400TH 0 to 38 32 to 100 Humidity Range 10 to 93 Relative Humidity Non condensing Air Velocity 3000 ft min 15m s Alarm Reset by momentary power interruption Ratings Voltage 12 24 VDC Ripple Voltage 4 Volts peak to peak Capacitance 0.02 Maximum Ratings 8.5 VDC Minimum 35 VDC Maximum 120 Maximum Ratings 4.2 VDC Minimum at 10 mA 6.6 VDC Maximum at 100 mA Alarm current must be limited to 100mA maximum by the control panel If used the Remote Annunciator operates within the specified detector alarm currents Voltage 2.5 VDC Minimum Time 0.3 S Maximum Time 34 S Maximum Installing thoroughly read the System Sensor manual A05 Applications Guide for System Smoke Detectors This provides detailed information on detector spacing zoning wiring and special applications Copies this manual are available at no charge from System For installations in Canada refer to CAN4 S524 for the Installation of Fire Alarm Systems and Part 1 Sec 32 This manual should be left with the owner user this equipment This sensor must be tested and maintained following NFPA 72 requirements This sensor be cleaned at least once a year 2400 but also features a restorable built in fixed 135 thermal detection unit detectors are listed to UL 268 and are latching type detectors When latched in alarm the detectors be reset by a momentary power interruption LED on the detector provides a local indication of the status This LED blinks every 10 seconds when detector is receiving power and ready in standby and latched on continuously in alarm until the detector is The detector provides an output for connection to optional Remote Annunciator Model RA400Z The Annunciator mounts to a single gang box and pro a supplementary alarm indication Description Sensor 2400 photoelectronic detectors use state optical sensing chambers These detectors are to provide open area protection and are intended use with compatible UL listed 2 wire control panels The detector operation and sensitivity can be tested place Model 2400TH has the same specifications as 1 I56 285 05R 72E defines the spacing requirements for smoke typically 30 feet when detectors are installed on smooth ceiling However ALL installations must comply NFPA 72 and or special requirements of the authority jurisdiction 1 Flush mounting of 2400TH smoke detector 31 and 4 inch octagonal box 2 2400 Smoke detector mounting bracket 2400 detector is supplied with a mounting bracket kit permits the detector to be mounted Directly to a 31 or 4 inch octagonal 11 deep box See Figure 1 or To a 4 inch square electrical box by using the plaster with the supplied mounting bracket kit Wiring Guidelines wiring must be installed in compliance with the National Code and all applicable local codes and any spe requirements of the local authority having jurisdiction wire gauges should be used The conductors used connect 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 signal wiring wiring between interconnected detec wire no smaller than AWG 18 is recommended the screws and clamping plate in the base can wire sizes up to AWG 12 The use of twisted wiring for the power and loop is recommended minimize the effects of electrical interference detectors and alarm system control panels have for allowable loop resistance Consult the panel manufacturer specifications for the total resistance allowed for the control panel being used wiring the detector loops MAKE DETECTOR TAMPER RESISTANT OFF TAB EXTENSION SCRIBED LINE wire connections by stripping about 3 inch of insu from the end of the wire and sliding the bare end the wire under the clamping plate and tightening the plate screw A wiring diagram for a typical 2 wire system is shown in Figure 3 Sensor smoke detectors are marked with a com identifier located as the last digit of a five digit stamped on the back of the product Connect detec only to compatible control units as indicated in System compatibility chart which contains a current list of control units and detectors A copy of this list is from System Sensor upon request For system supervision do not loop wire under If remote annunciator is not used polarity to 1 and 2 may be reversed Feature detector includes a tamper resistant feature that pre removal of the detector without the use of a tool To the detector tamper resistant break off the smaller at the scribed line on the tamper resistant tab on the mounting bracket see Figure 2 then install the To remove the detector from the bracket once it been made tamper resistant use a small screwdriver to the tamper resistant tab located in the slot on the bracket and turn the detector counterclockwise removal 3 Wiring diagram for 2400 smoke detector used with two wire control panel LISTED 2 I56 285 05R IF REMOTE ANNUNCIATOR IS NOT USED POLARITY TO DETECTOR MAY BE REVERSED A OPTIONAL WIRING Functional Tests Recessed Test Switch 1 A test switch is located on the detector housing See the power from initiating device circuits before detectors 4 2 Press and hold the recessed test switch with a 0.1 Wire each detector following installation guidelines Line up arrows on the detector with arrows on the Turn the detector clockwise until it clicks into place After all detectors have been installed apply power to bracket control unit Test the detector as described under TESTING Reset the detector at the system control panel Notify the proper authorities the system is in operation covers can be used to help limit dust entry to the detec However these covers are not a substitute for removing detector during building construction Remove any dust before placing the system in service detectors are not to be used with detector guards the combination has been evaluated and found suit for that purpose testing notify the proper authorities that the smoke system is undergoing maintenance and the system be temporarily out of service Disable the zone or sys undergoing maintenance to prevent unwanted alarms testing the detector look for the presence of the

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