Fire Alarm Sensor Wiring Diagram. Do not mix fire alarm system wiring in the same conduit as any other electrical wiring. Alarm initiation contacts SPST 20A 30 VDC resistive Alarm auxiliary contatcs DPDT 10A 30 VDC resistive 10A 250 VAC resistive 12 HP 240 VAC 14 HP 120 VAC NOTE.
For best system performance all wiring should be installed in separate grounded conduit. WIRING DIAGRAM SHOWN IS FOR D4120 4-WIRE DUCT SMOKE DETECTOR SYSTEM EQUIPPED WITHOUT A CONTROL PANEL. Jan 15 2015 - Fire alarm installation and wiring a smoke detector system in your home.
For best system performance all wiring should be installed in separate grounded conduit.
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 142 cable with a black live a white neutral and a ground wire as shown by the diagram in Figure 5. The event of a fire. If you are interested in taking the NICET exam for fire alarms then we have you covered. Aico Ei141 Radio Interlinked Ionisation Smoke Alarm.
