Chamberlain BILT B4643T User Manual

29
Installation
STEP 13 Wire the Safety Reversing Sensors (continued)
OPTION B - PRE-WIRED INSTALLATION
1. Cut the sensor wires, making sure there is enough wire to reach the pre-installed wires from the
wall.
2. Separate the sensor wires and strip insulation from each end. Choose two of the pre-installed wires
and strip insulation from each end. Choose the same color pre-installed wires for each sensor.
3. Connect the pre-installed wires to the sensor wires with wire nuts making sure the colors
correspond for each sensor.
4. At the garage door opener, strip the end of the wires previously connected to the sensors. Twist the
like-colored wires together.
5. Using a screwdriver, push in the terminal tabs, and insert the wire color connected to the sensor's
white wire into the white terminal. Insert the other wire color connected to the sensor's white/black
wire into the grey terminal.
Safety reversing sensor wires
White
White/Black
Yellow (for example)
Purple (for example)
Wire nuts (not provided)
Pre-installed wires
Safety reversing
sensor wires
1
3
4
7/16" (11 mm)
2
5
Purple
Yellow
Pre-installed
wires
Pre-installed wires
Wire channel
7/16" (11 mm)
Yellow
Purple

Chamberlain BILT B4643T Specifications

General

Drive Type	Belt Drive
Horsepower	1/2 HP
Battery Backup	Yes
Smartphone Control	Yes
Connectivity	Wi-Fi
Remote Controls Included	2
Safety and Security Features	Rolling Code
Speed	7.0 in/sec
Motor	DC
Warranty	5 years on parts
Lighting	Dual LED lighting