Use and Care Manual

White:
Neutral line
Black:
Power line
Bare copper
Red/orange/yellow:
Interconnect
3/8 in (1 cm)
The exposed wire should be straight.
12
9. Attach the Nest connector
Hold the white wire ends together, cap them
with a wire nut and twist clockwise until it’s
secure. Do the same with the black wires.
There’s no need for the red/orange/yellow
wire. Simply cap it with a wire nut and twist
until secure.
8. Remove the old connector
Unscrew the wire nuts to detach the 120V
connector from your old smoke alarm.