Invisible Light Beam
Protection Area
Sensor
Sensor
Connect Wire to
Opener Terminals
Bell Wire
Bell Wire Finished
Ceiling
Sensor
Connections
Door Control
Connections
(dotted line)
OPENER TERMINAL SCREWS
123
• Center each sensor unit in a "C" wrap with lenses
pointing toward each other across the door (see
Figure 7).
• Secure sensors with the hardware shown. Finger
tighten the wing nut on the

receiving eye

to allow
for final adjustment. Securely tighten the

sending

eye

wing nut.
• Run the wires from both sensors to the opener.
Use insulated staples to secure wire to wall and
ceiling.
• Strip 1/4" of insulation from each set of wires.
Separate white and white/black wires sufficiently to
connect to the opener terminal screws: white to 2
and white/black to 3.
• Plug in the opener. Green indicator lights in both
the sending and receiving eyes will

glow steadily

if
wiring connections and alignment are correct.
If the indicator light is

off

in the

receiving eye

(and
the invisible light beam path is not obstructed),
alignment is required.
• Loosen the receiving eye wing nut to allow slight
rotation of unit. Adjust sensor vertically and
horizontally until the green indicator light

glows

with a steady light

.
• When indicator lights are

glowing steadily

in both
units, tighten the wing nut in the receiving eye unit.
21
1/4-20 x 1-1/2"
Hex Bolt
"C" Wrap
Sensor
with Wire
Wing
Nut
Indicator
Light
Hex Bolt
1/4-20x1-1/2" Wing Nut
Hardware Shown Actual Size
Figure 7
Trouble Shooting
1. If the

sending eye

indicator light does not

glow

steadily

after installation, check for:
• Electric power to the opener.
• A short in the white or white/black wires. These
can occur under staples or at screw terminal
connections.
• Incorrect wiring between sensors and opener.
• An open wire (wire break).
2. If the sending eye indicator light

glows steadily

but
the receiving eye indicator light doesn't:
• Check alignment.
• Check for an open wire to the receiving eye.