Chamberlain 459950 Manual De Usuario

20

When properly connected and aligned, the sensor will 
detect an obstacle in the path of its electronic beam. The 
sending eye (with an amber indicator light) transmits an 
invisible light beam to the receiving eye (with a green 
indicator light). 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.

The mounting brackets are designed to clip onto the track 
of sectional garage doors without additional hardware. 

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. Extension brackets (see Accessories) 
are available if needed. 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.

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 floor

Safety Reversing Sensor 
6" (15 cm) max. 
above floor

Invisible Light Beam
Protection Area