Chamberlain 3130M 1/3 HP - Manual (Page 13)

13
Wing Nut
1/4"-20
Staples
Carriage Bolt
1/4"-20x1/2"
Wing Nut
Carriage Bolt
1/4"-20x1/2"
Lens
MOUNTING AND WIRING THE SAFETY SENSORS
• Slide a 1/4"-20x1/2" carriage bolt head into the slot
on each sensor. Use wing nuts to fasten sensors
to brackets, with lenses pointing toward each other
across the door. Be sure the lens is not obstructed by
a bracket extension (Figure 5).
• Finger tighten the wing nuts.
Recommended Wire Routing
1. Using insulated staples, run the wires from both
sensors to the rail at the door header (Figure 6).
2. Run the wires through wire clips at the top of
the rails.
NOTE: If your access door is near the garage door, you
may choose to install the door control at this time and run
the door control wire along the rail with the sensor wires.
Figure 6
Figure 5
Sensor Wire
Bell Wire
Safety Reversing Sensor
Safety Reversing Sensor Invisible Light Beam
Protection Area
Rail
Wire Clips
HARDWARE SHOWN ACTUAL SIZE