System Sensor APA451 Manual

INSTALLATION AND MAINTENANCE INSTRUCTIONS Annunciator with Alert 4.6 H 2.75 W 1.5 D 17 lbs Requirements Voltage Regulated 24VDC Operational Voltage 16 Maximum Operating Current 30mA 6 binding head screws 14 AWG to 18 AWG wire Reverberant Room 81 dBA min 10 ft to 38 14 to 100 5 to 95 Relative Humidity These models were only tested at the 16 33 Volt limits This does not include the 80 low end or 110 voltage limits This manual shall be left with the of this equipment 1 Information National Fire Protection Association NFPA has pub codes standards and recommended practices for the and use of this product It is recommended that installer be familiar with these requirements with local and any special requirements of the local authority jurisdiction For further information consult NFPA and 90A requirements System Sensor APA451 annunciator with piezo alert an audible signal appliance for fire alarm service It is for use in System Sensor 4 wire conventional duct detector applications without a system control panel comply with NFPA 90A APA451 provides a red alarm LED with an audible of an alarm signal and a green power LED 3825 Ohio Avenue St Charles Illinois 60174 FAX 630 377 6495 1 I56 468 05 Contents APA451 annunciator with piezo alert screw pack containing two mounting screws Test the wiring diagrams below to insure proper wiring the APA451 the APA451 as shown in Figure 2 Limit wire runs to ohms or less per interconnecting wire the APA451 to the single gang box using the two provided or directly to the wall or ceiling power to the duct smoke detector Visually check the LED green to make sure it is operational the detector into alarm state The alarm LED red will and the piezo horn will sound Reset the detector 2 Wiring diagram for DH400ACDC to APA451 3 Wiring diagram for DH100ACDC to APA451 Wiring to APA451 Limitations of Sounders sounder will not operate if the power is cut off fo