Floor Installation; Wire The Safety Reversing Sensors - LiftMaster 87504-267 Manual De Instrucciones

Install the Protector System

FLOOR INSTALLATION

1. Measure the position of both sensor brackets so they will be the same distance from the wall and
unobstructed.
2. Attach the bracket to the floor with concrete anchors (not provided).
3. Slide the hex screw through the sensor.
4. Attach the sensor to the bracket with the wing nut. Make sure the lens is not obstructed by the bracket.
Repeat the steps with the other sensor on the opposite side of the garage door. Both lenses must face each
other.
Inside
1
garage wall
Door track
3 4
®
2
Not
provided
Wingnut
6" (15 cm) max.

2 Wire the Safety Reversing Sensors

PRE-WIRED INSTALLATIONS: If your garage already has wires installed for the safety reversing sensors, see
page 27.
OPTION A - INSTALLATION WITHOUT PRE-WIRING
1. Run the wire from both sensors to the garage door opener. Attach with staples, but DO NOT puncture the
wire.
2. Separate the sensor wires and strip insulation from each end. Twist the two white wires together. Then
twist the two white/black wires together.
3. Using a screwdriver, push in the terminal tabs, and insert the white wires into the white terminal. Insert the
white/black wires into the grey terminal.
1
Staple
3
Wire channel
26
2
7/16" (11 mm)