Chamberlain ‎B970 Smart Garage Door Opener

User Manual - Page 22

For B970.

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22
Installation
STEP 13 Install the Protector System
®
Be sure power is NOT connected to the garage door opener BEFORE installing the safety reversing
sensor.
To prevent SERIOUS INJURY or DEATH from closing garage door:
l Correctly connect and align the safetyreversing sensor. This required safetydevice MUST NOT
be disabled.
l Install the safety reversing sensor so beam is NO HIGHER than 6" (15 cm) above garage floor.
IMPORTANT INFORMATION ABOUT THE SAFETY REVERSING SENSORS
The safety reversing sensors must be connected and aligned correctly before the garage door
opener will move in the down direction.
The sending sensor (with an amber LED) transmitsan invisible light beam to the receiving sensor (with
a green LED).If an obstruction breaks the light beam while the door is closing, the door will stop and
reverse to the full open position, and the garage door opener lightswill flash 10 times.
NOTE: For energy efficiency the garage door opener will enter sleep mode when the door is fully
closed. The sleep mode shuts the garage door opener down until activated. The sleep mode is
sequenced with the garage door opener light bulb; as the light bulb turns off the sensor LEDs will turn
offand whenever the garage door opener lights turn on the sensor LEDs will light. The garage door
opener will not go into the sleep mode until the garage door opener has completed 5 cycles upon
power up.
When installing the safety reversing sensors check the following:
l Sensors are installed inside the garage, one on either side ofthe door.
l Sensors are facing each other with the lenses aligned and the receiving sensor lens does not
receive directsunlight.
l Sensors are no more than 6 inches (15 cm) above the floor and the light beam is
unobstructed.
Safety Reversing Sensor
6" (15 cm) max. above floor
Invisible Light Beam
Protection Area
Facing the door from inside the garage
Carriage Bolt
1/4"-20 x 1/2"
Wing Nut
1/4"-20
HARDWARE
The safety reversing sensors can be attached to the door track, the wall, or the floor. The sensors should
be no more than 6 inches (15 cm) above the floor. If the door trackwill not support the sensor bracket a
wall installation isrecommended. Choose one ofthe following installations.
OPTION A DOOR TRACK INSTALLATION
1. Slide the curved armsof the sensor bracket around the edge of the door track.Snap into
place so that the sensor bracket is flush againstthe track.
2. Slide the carriage bolt into the slot on each sensor.
3. Insert the bolt through the hole in the sensor bracket and attach with the wing nut.The lenses
on both sensors should point toward each other. Make sure the lens is not obstructed by the
sensor bracket.
No more
than 6 inches
(15 cm)
Carriage Bolt
Wing Nut
1
2
3
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