Chamberlain 3800PC - Manuel (Page 17)

17
Installation
Run the wires from both safety reversing sensors to the opener. Use insulated staples
to secure wire to wall and ceiling.
Strip 7/16" (11 mm) of insulation from each set of wires. Separate white and white/
black wires suffi ciently to connect to the opener quick-connect terminals: white to
white and white/black to grey.
3
4
5
7/16
(11 mm)
HARDWARE
WHITE/
BLACK
Bell wire
WHITE
Staple
1 Slide a 1/4"-20x1/2" carriage bolt head into the slot on each sensor.
Use wing nuts to fasten safety reversing sensors to brackets, with lenses pointing
toward each other across the door. Be sure the lens is not obstructed by a bracket
extension.
Finger tighten the wing nuts.
2
HARDWARE
Carriage Bolt
Wing Nut
Wing Nut
1/4"-20
Carriage Bolt
1/4"-20x1/2"
MOUNTING AND WIRING THE SAFETY REVERSING SENSORS