Chamberlain ATS2113X 1/2 HP Installation Manual page 17

MOUNTING AND WIRING THE SAFETY REVERSING
SENSORS
Mounting:
1. Center each sensor unit in a "C" wrap with lenses pointing
toward each other across the door (Figure 6).
2. Use
1/4"-20x1-1/2" hex bolts and
to brackets, with lenses pointing toward each other across
the door. Be sure the lens is not obstructed by a bracket
extension (Figure 6).
3. Finger tighten the wing nuts.
Option A - Installation Without Pre-Wiring:
1. Run the bell wire from both sensors to the door operator.
Attach the wire to the wall and ceiling with the staples
(Figure 7).
Option B - Pre-Wired Installation:
If your building already has wires installed for the safety
reversing sensors, follow the instructions below:
1. Cut the end of the safety reversing sensor wire, making
sure there is enough wire to reach the pre-installed wires
from the wall (Figure 8).
2. Separate the safety reversing sensor wires and strip 1/4"
(6 mm) of insulation from each end. Choose two of the
pre-installed wires and strip 1/4" (6 mm) of insulation from
each end. Make sure that you choose the same color pre-
installed wires for each sensor (Figure 9).
3. Connect the pre-installed wires to the sensor wires with
wire nuts making sure the colors correspond for each
sensor (Figure 10).
HARDWARE SHOWN ACTUAL SIZE
Hex Bolt
1/4"-20x1-1/2"
wing nuts to fasten sensors
Wing Nut
Figure 6
"C" Wrap
Indicator
Light
Hex Bolt
1/4"-20x1-1/2"
Figure 7
Figure 8
Figure 9
Safety Reversing
Sensor Wires
Figure 10
Safety Reversing
Sensor Wires
White
White/Black
17
Wing
Nut
Sensor with Wire
1/4"
(6 mm)
Pre-Installed
Wires
Not Provided
1/4"
(6 mm)
Pre-Installed
Wires