Chamberlain C253 User Manual

25
Installation
STEP 14 Wire the Safety Reversing Sensors
If your garage already has wires installed for the safety reversing sensors, proceed to page 26.
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 the
staples.
2. Strip 7/16" (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.
Staple
7/16" (11 mm)
WHITE
WHITE
GREY
RED
1
2
3
HARDWARE
Insulated Staple (Not Shown)

Chamberlain C253 Specifications

General

Brand	Chamberlain
Model	C253
Category	Garage Door Opener
Language	English