LiftMaster 8160WB Owners Manual - Page 24
Wire the Safety Reversing Sensors, OPTION C - FLOOR INSTALLATION
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Install the Protector System® OPTION C - FLOOR INSTALLATION Use an extension bracket (not provided) or wood block to raise the sensor bracket if needed. 1. Carefully measure the position of both sensor brackets so they will be the same distance from the wall and unobstructed. 2. Attach the sensor brackets to the floor using concrete anchors (not provided). 3. Slide the carriage bolt into the slot on each sensor. 4. Insert the bolt through the hole in the sensor bracket and attach with the wing nut. The lenses on both sensors should point toward each other. Make sure the lens is not obstructed by the sensor bracket. 1 2 (Not provided) IGWnasarildal ege 2 Wire the Safety Reversing Sensors PRE-WIRED INSTALLATIONS: If your garage already has wires installed for the safety reversing sensors, see page 25. OPTION A - INSTALLATION WITHOUT PRE-WIRING 1. Run the wire from both sensors to the garage door opener. Attach the wire to the wall and ceiling with staples. 2. Strip 7/16 inch (11 mm) of insulation from each set of wires. Separate the wires. Twist the white wires together. Twist the white/black wires together. 3. Insert the white wires into the white terminal on the garage door opener. Insert the white/black wires into the grey terminal on the garage door opener. To insert or remove the wires from the terminal, push in the tab with a screwdriver tip. 1 2 Staple 3 4 Wing Nut Carriage Bolt 1/4"-20 1/4"-20 x 1/2" 3 7/16" (11 mm) RED WHITE WHITE GREY 24