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Intelligent Products—2551J and 2551TJ Plug-In Intelligent Photoelectronic Smoke Detector 15

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Figure 5: Cleaning the 2551J/2551TJ Detector

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Summary of Contents for 2551J

Page 1: ...Controls Inc 1 Code No LIT 408075 Introduction Page 3 General Description 4 Installation Procedures 7 General Description 7 Spacing 7 Wiring Installation Guidelines 7 Installation 8 Tamper Proof Feature 9 Testing and Maintenance Procedures 11 Testing 11 Maintenance 14 Limitations 16 2551J and 2551TJ Plug In Intelligent Photoelectronic Smoke Detector ...

Page 2: ...2 Intelligent Products 2551J and 2551TJ Plug In Intelligent Photoelectronic Smoke Detector ...

Page 3: ...al Fire Protection Association NFPA 72 National Fire Alarm Code System Sensor Guide for Proper Use of System Smoke Detectors Technical Bulletin in the Fire Initiating Devices and Notification Appliances Technical Manual FAN 408 which provides detailed information on detector spacing placement zoning wiring and special applications or for non United States installations applicable codes and standar...

Page 4: ...ector is polled by the control panel when the blink feature is enabled in the system programming of the control panel When the detector is in alarm the LEDs are latched into a constant On condition When the system and the detector is reset after an alarm the LEDs will return to the normal blink mode if programmed Note that only five detectors on any one SLC can latch on the detector LEDs in the al...

Page 5: ...in B501B 4 1 in 104 14 mm installed in B501 Height 2 3 in 58 42 mm Add 0 5 in 12 7 mm for thermal models Weight 0 61 lb 277 g Installation Temperature Range 2551J 32 to 120 F 0 to 49 C 2551TJ 32 to 100 F 0 to 38 C For the 2551J and 2551TJ Detectors Installation Humidity Range 10 to 93 Relative Humidity Maximum Air Velocity 3000 ft min 15 m S Voltage Range 14 5 to 28 volts DC Peak Standby Current 1...

Page 6: ...6 Intelligent Products 2551J and 2551TJ Plug In Intelligent Photoelectronic Smoke Detector ...

Page 7: ...ing no higher than 10 feet Room configuration and operating environment may require a reduction in the standard maximum 900 square foot coverage for each detector All wiring must conform to applicable local codes ordinances and regulations Verify that all detector bases are installed and the wiring polarity is correct at each base Proper wire gauges should be used The installation wires should be ...

Page 8: ...he detector clockwise to lock it in place 6 Enable the tamper proof feature For instructions see the Tamper Proof Feature section of this technical bulletin 7 After all detectors have been installed apply power to the SLC or control unit 8 Remove the detector dust cover if the operating environment is free of excessive dust as is typically encountered during construction 9 Test the detector by fol...

Page 9: ... remove the detector from the bracket once it has been made tamper proof 1 Use a pocket screwdriver or similar tool and depress the tamper proof tab located in the slot on the mounting bracket 2 Turn the detector counterclockwise until it separates from the base See the applicable detector base data for the location of the tamper proof break off tab and the location of the tool insertion point rem...

Page 10: ...10 Intelligent Products 2551J and 2551TJ Plug In Intelligent Photoelectronic Smoke Detector ...

Page 11: ... and the alarm activating device is removed from the detector the system should be reset at the control panel before testing any additional detectors Before you check each detector Check and make sure the LEDs blink If they do not blink and LEDs on other detectors and or modules on the same SLC blink Check the connection between the SLC and the detector Check the data base to make sure the detecto...

Page 12: ...ed Surface LED Figure 4 Views Showing Position of the Test Magnet model 2551TJ shown Sensitivity Test Module MOD400R The MOD400R is used with your Digital Multimeter DMM or voltmeter to check the detector sensitivity as described in the MOD400R s manual If the detector s sensitivity limits or the MOD400R limits do not appear on the back of the detector the MOD400R is not suitable for field sensiti...

Page 13: ...hould be returned for repair You can test all of the intelligent detectors programmed in the system by issuing a command at the control panel This test checks if the detectors are communicating with the control panel if the detectors are in the proper sensitivity range for any detectors that are in alarm for any detectors that are reporting a trouble condition The test can be performed while the s...

Page 14: ...slot of the detector cover 2 Twist it slightly until the cover can be turned counterclockwise for removal 3 Vacuum the screen carefully without removing it If further cleaning is required continue with Step 3 or skip to Step 6 4 Remove the screen by pulling it straight out 5 Vacuum the inside 6 Clean the vaned chamber piece by vacuuming or blowing out dust and particles 7 To replace the screen ori...

Page 15: ... Products 2551J and 2551TJ Plug In Intelligent Photoelectronic Smoke Detector 15 cov scr4 Removable Cover Removable Screen P N RS24 w o Thermal RS24T w Thermal Test Slot Figure 5 Cleaning the 2551J 2551TJ Detector ...

Page 16: ...fast flaming fires than slow smoldering fires Photoelectric detectors sense smoldering fires better than flaming fires Because fires develop in different ways and are often unpredictable in their growth neither type of detector is always best and a given detector may not always provide warning of a fire In general detectors cannot be expected to provide warnings for fires resulting from inadequate...

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