Chamberlain PD432DM 1/2 HP Owners Owner's Manual page 17

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. See 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 (see Figure 6).
2. Run the wires through wire clip 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. If you choose this option, follow instructions
1-3 on page 20.
Figure 6
Sensor Wire
Wire Clips
Rail
Safety Reversing Sensor
Figure 5
Carriage Bolt
1/4"-20x1/2"
HARDWARE SHOWN ACTUAL SIZE
Carriage Bolt
1/4"-20x1/2"
Staples
Bell Wire
Invisible Light Beam
Protection Area
17
Wing Nut
Lens
Wing Nut
1/4"-20
Wire Clip
Safety Reversing Sensor