Chamberlain ATS, Owner'S Manual

Page: 15 / 72

15
INSTALLATION STEP 10
Install The Protector System
®
The safety reversing sensor must be connected and
aligned correctly before the garage door opener will
move in the down direction.
IMPORTANT INFORMATION ABOUT THE SAFETY
REVERSING SENSOR
When properly connected and aligned, the sensor will
detect an obstacle in the path of its electronic beam.
The sending eye transmits an invisible light beam to the
receiving eye. If an obstruction breaks the light beam while
the door is closing, the door will stop and reverse to full
open position, and the opener lights will fl ash 10 times.
The units must be installed inside the garage so that the
sending and receiving eyes face each other across the
door, no more than 6" (15 cm) above the fl oor. Either can
be installed on the left or right of the door as long as the
sun never shines directly into the receiving eye lens.
If it is necessary to mount the units on the wall, the
brackets must be securely fastened to a solid surface such
as the wall framing. If installing in masonry construction,
add a piece of wood at each location to avoid drilling extra
holes in masonry if repositioning is necessary.
The invisible light beam path must be unobstructed. No
part of the garage door (or door tracks, springs, hinges,
rollers or other hardware) may interrupt the beam while
the door is closing.
Facing the door from inside the garage
Be sure power is NOT connected to the garage door
opener BEFORE installing the safety reversing sensor.
To prevent SERIOUS INJURY or DEATH from a
closing garage door:
• Correctly connect and align the safety reversing
sensor. This required safety device MUST NOT be
disabled.
• Install the safety reversing sensor so beam is NO
HIGHER than 6" (15 cm) above garage fl oor.
Safety Reversing Sensor
6" (15 cm) max. above fl oor
Safety Reversing Sensor
6" (15 cm) max. above fl oor
Invisible Light Beam
Protection Area