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Basic Installation Techniques
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alarm circuit alarm system alternating current ampere annunciator applied attic basement battery bell building burglar cable cause ceiling channel components conductors connected contractor control panel cost designed detection devices direct job expense Distribution Tee door contacts drawings drill motor electrical electronic entry detector equipment estimate FIGURE fire fire-alarm system flexible shaft floor plan Floor-mat flow foil blocks ft'/min gal/min glass heat detector hole input installation insulation labor units load located loop low-voltage magnetic contacts motion detector mounted National Electrical Code normally ohmmeter open-circuit operation overhead perimeter photoelectric power supply pressure pricing sheet protective circuit reactance Receptacle Outlet relay residential scale security/fire-alarm systems sensor shown in Fig silent alarm smoke detectors sound space Surface-mount symbols telephone dialer temperature terminals thermistor Total transmitter troubleshooting typical ultrasonic motion detector valve voltage wall Window foil wiring wiring diagram worker-hours zone