Page 1: Table Of Contents
Fire Initiating Devices and Notification Appliances Technical Manual 408 Intelligent Products Section Technical Bulletin Issue Date 1095 2551J and 2551TJ Plug-In Intelligent Photoelectronic Smoke Detector Introduction Page General Description Installation Procedures General Description Spacing Wiring Installation Guidelines Installation Tamper-Proof Feature...
Page 2 2 Intelligent Products—2551J and 2551TJ Plug-In Intelligent Photoelectronic Smoke Detector...
Page 3: Photoelectronic Smoke Detector
As is the case with all installations under NFPA, Underwriters Laboratories, Inc. (UL), Underwriters Laboratories of Canada (ULC), or Canadian Electrical Code classification, final written approval of permissible operation and configuration rests with the authority having jurisdiction. Intelligent Products—2551J and 2551TJ Plug-In Intelligent Photoelectronic Smoke Detector 3...
Page 4 The detectors transmit an analog value representation of the smoke density over the communication Signaling Line Circuit (SLC) to a fire alarm control panel. When the heat detection element of the 2551J senses a temperature above its alarm point, it increases the transmitted analog value to a level that will cause an alarm in the system.
Page 5 Recessed Mounting Kit (includes B501J) RMK400 F110 Retrofit Replacement Flange for B501BJ Base Remote LED Annunciator RA400Z Detector Sensitivity Test Tool MOD400R SMK400 Surface Mounting Kit Test Magnet M02-04-01 Detector Removal Tool XR-5 Intelligent Products—2551J and 2551TJ Plug-In Intelligent Photoelectronic Smoke Detector 5...
Page 6 6 Intelligent Products—2551J and 2551TJ Plug-In Intelligent Photoelectronic Smoke Detector...
Page 7: General Description
Refer to the selected plug-in detector mounting base document located in the Fire Initiating Devices and Notification Appliances Technical Manual (FAN 408) for installation and wiring instructions. Intelligent Products—2551J and 2551TJ Plug-In Intelligent Photoelectronic Smoke Detector 7...
Page 8: Installation
If detectors are mounted in a construction area, with or without the dust cover in place, each detector should be thoroughly cleaned, inspected, and tested after construction is complete. Remove any dust covers before placing system in service. 8 Intelligent Products—2551J and 2551TJ Plug-In Intelligent Photoelectronic Smoke Detector...
Page 9: Tamper-Proof Feature
Figure 3: Removing the Detector Head from the Base The tamper-proof feature may be defeated by breaking and removing the plastic lever from the base. However, this prevents using the feature again. Intelligent Products—2551J and 2551TJ Plug-In Intelligent Photoelectronic Smoke Detector 9...
Page 10 10 Intelligent Products—2551J and 2551TJ Plug-In Intelligent Photoelectronic Smoke Detector...
Page 11: Testing And Maintenance Procedures
The sensitivity and function of each detector must be tested after the initial Detector Tests installation and periodically thereafter. Refer to the NFPA-72-National Fire Alarm Code for the required frequency. Check with your local authority for the requirements in your area. Intelligent Products—2551J and 2551TJ Plug-In Intelligent Photoelectronic Smoke Detector 11...
Page 12 Gemini 501 manual. 2. Using the bowl-shaped applicator, apply aerosol until unit alarms. This test only verifies proper operation of the detector, and is not used to test sensitivity. 12 Intelligent Products—2551J and 2551TJ Plug-In Intelligent Photoelectronic Smoke Detector...
Page 13 Refer to the control panel technical manual for detailed information on testing the intelligent detectors from the control panel. Intelligent Products—2551J and 2551TJ Plug-In Intelligent Photoelectronic Smoke Detector 13...
Page 14: Maintenance
8. Carefully push the screen onto the base making sure it fits tightly to the chamber. 9. Replace the cover by gently rotating it clockwise until it locks in place. 14 Intelligent Products—2551J and 2551TJ Plug-In Intelligent Photoelectronic Smoke Detector...
Page 15 P /N R S 2 4 (w /o Th erm al).. R S 2 4 T (w / T he rm al) c ov& scr4 Figure 5: Cleaning the 2551J/2551TJ Detector Intelligent Products—2551J and 2551TJ Plug-In Intelligent Photoelectronic Smoke Detector 15...
Page 16: Limitations
Controls Group FAN 408 507 E. Michigan Street Fire Initiating Devices and Notification Appliances Technical Manual P.O. Box 423 Printed in U.S.A. Milwaukee, WI 53201 16 Intelligent Products—2551J and 2551TJ Plug-In Intelligent Photoelectronic Smoke Detector...

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