Page 1: Table Of Contents
Fire Initiating Devices and Notification Appliances Technical Manual 408 Intelligent Products Section Technical Bulletin Issue Date 1095 2251J Plug-In Low Profile Intelligent Photoelectronic Smoke Detector Introduction Page General Description Installation Procedures General Information Spacing Wiring Installation Guidelines Installation Tamper-Proof Feature...
Page 2 2 Intelligent Products—2251J Plug-In Low Profile Intelligent Photoelectronic Smoke Detector...
Page 3: Introduction
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—2251J Plug-In Low Profile Intelligent Photoelectronic Smoke Detector 3...
Page 4: General Description
HVAC fan. Remote LED annunciation capability is available as an optional accessory (RA400Z). The 2251J detector is designed to provide open area protection. It requires compatible addressable communications to function properly. Connect this detector to UL Listed-compatible control panels only.
Page 5 CAUTION: Personal injury hazard. This device will not operate without electrical power. Frequently, fire situations may cause an interruption of power. The system safeguards should be discussed with your local fire protections specialist. Intelligent Products—2251J Plug-In Low Profile Intelligent Photoelectronic Smoke Detector 5...
Page 6 Johnson Controls compatibility chart, which contains a list of UL Listed control units and detectors. See the Device Compatibility Technical Bulletin located in the Fire Management Accessories Manual (FAN 445). 6 Intelligent Products—2251J Plug-In Low Profile Intelligent Photoelectronic Smoke Detector...
Page 7: Installation Procedures
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—2251J Plug-In Low Profile 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—2251J Plug-In Low Profile 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—2251J Plug-In Low Profile Intelligent Photoelectronic Smoke Detector 9...
Page 10 10 Intelligent Products—2251J Plug-In Low Profile 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—2251J Plug-In Low Profile Intelligent Photoelectronic Smoke Detector 11...
Page 12 If the detector’s sensitivity limits or the MOD400 limits do not appear on the back of the detector, the MOD400 is not suitable for field sensitivity testing of that unit. 12 Intelligent Products—2251J Plug-In Low Profile 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—2251J Plug-In Low Profile Intelligent Photoelectronic Smoke Detector 13...
Page 14: Maintenance
14. Snap the cover into place. 15. When all detectors have been cleaned, restore system operation for testing purposes and test the detectors as described in the Testing section of this technical bulletin. 14 Intelligent Products—2251J Plug-In Low Profile Intelligent Photoelectronic Smoke Detector...
Page 15 Sensor Cover Cover Removal Tabs Sensor Screen Sensing Chamber testsw10 Figure 5: Removal of the Cover for Cleaning Intelligent Products—2251J Plug-In Low Profile 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—2251J Plug-In Low Profile Intelligent Photoelectronic Smoke Detector...

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