Fire Smoke Detector Connection

A hardwired smoke alarm installation involves wiring one of the smoke detectors closest to the voltage source to a 120 vac breaker in the main electric panel or tapping from a 120 v electrical box wiring it using a 14 2 cable with a black live a white neutral and a ground wire as shown by the diagram in figure 5.

Fire smoke detector connection.

Because technically it is. All of the smoke detector wiring is connected to the fire alarm zone on the panel and is fully supervised as if it were a single run. On some models the wire connections are made to a mounting plate that has a plug in socket into which the smoke detector is plugged. Most hard wired smoke detectors have a connection from the electrical wires to the smoke detectors that engages and disengages.

A single 2 or 4 conductor fire wire is pulled from the main panel location to the last smoke detector in the system the end of line smoke. Mount smoke detectors at least 4 inches from wall or on the wall with the top of the detector within 4 inches and 12 inches of the highest point of the ceiling. That s because in addition to. Connection methods for smoke detectors vary from model to model so make sure to follow manufacturer s directions.

In our basic wiring diagram a single or multiple heat and smoke detectors are installed in the home by connecting the live line or hot neutral ground and an interconnected wire to the alarm. Along the way the wire passes the other smoke alarms in the system the looped smokes. When connecting smoke alarms to each other the wire harness should connect to both the wires that run from the breaker panel power source and the wires that run between both alarms. It s like a plug.

A smoke or heat detector can be installed to the existing or new home wiring. Wrap the wire connectors with electrical tape for extra protection. The best smart smoke detectors go beyond just sounding an alarm. On other models the wire connections are made directly to the smoke detector.

Gently tuck the excess wire length and wire connectors into the remodeling box. For additional details on making wiring connections to smoke detector terminals check out smoke detector circuit basics.