Page 1: Table Of Contents
Fire Initiating Devices and Notification Appliances Technical Manual 408 Conventional Products Section Technical Bulletin Issue Date 1095 5451 Conventional Plug-In Rate-of-Rise Heat Detector Introduction Page General Description Installation Procedures General Information Base Selection and Wiring Installation Guidelines Installation Tamper-Proof Feature...
Page 2 2 Conventional Products—5451 Conventional Plug-In Rate-of-Rise Heat Detector...
Page 3: Introduction
CAUTION: Equipment hazard. Do not use in potentially explosive atmospheres. Do not leave unused wires exposed. Model 5451 is a conventional, contact-type, rate-of-rise with fixed temperature alarm heat detector utilizing a state-of-the-art dual thermistor sensing circuit. These detectors are designed to provide open area protection with 50 foot (1,5240 mm) spacing capability and are to be used with compatible control panels only.
Page 4 Retrofit Replacement Flange F110 Replacement Dust Cover Dust 12 Recess Mounting Kit RMK400 (for use with B401, B401R) Surface Mounting Kit SMK400 (for use with B401, B401R) A77-716B End-of-Line Relay for Power Supervision 4 Conventional Products—5451 Conventional Plug-In Rate-of-Rise Heat Detector...
Page 5: Installation Procedures
Installation Procedures This section contains installation information for the 5451 plug-in General rate-of-rise heat detector. Instructions are given for wiring and installing Information the detector. Refer to the plug-in detector bases technical bulletins in the Fire Initiating Base Selection Devices and Notification Appliances Technical Manual (FAN 408) for and Wiring base selection and wiring instructions.
Page 6 Connect detectors only to compatible control units as indicated in the Device Compatibility Technical Bulletin in the Fire Management Accessories Manual (FAN 445). 6 Conventional Products—5451 Conventional Plug-In Rate-of-Rise Heat Detector...
Page 7: Installation
6. Test the detector using the magnet as described in the Testing section of this technical bulletin. 7. Reset the detector at the system control panel. 8. Notify the proper authorities that the system is in operation. Conventional Products—5451 Conventional Plug-In Rate-of-Rise Heat Detector 7...
Page 8: 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. 8 Conventional Products—5451 Conventional Plug-In Rate-of-Rise Heat Detector...
Page 9: Testing And Maintenance Procedures
If the LEDs fail to light, check the power to the detector and the wiring in the detector base. 3. Reset the detector at the system control panel. Conventional Products—5451 Conventional Plug-In Rate-of-Rise Heat Detector 9...
Page 10 Detectors that fail these tests should be cleaned as described in the Maintenance section of this technical bulletin and retested. If the detectors still fail these tests, they should be replaced or returned for repair. 10 Conventional Products—5451 Conventional Plug-In Rate-of-Rise Heat Detector...
Page 11: Maintenance
The 5451 detector has been designed to be as maintenance-free as possible. Normal air-borne dust, however, can accumulate on the detector’s sensing elements and cause them to become less sensitive. All detectors should be tested and cleaned at least once a year, and those in dustier areas should be tested and cleaned more often.
Page 12: 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 12 Conventional Products—5451 Conventional Plug-In Rate-of-Rise Heat Detector...

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