Chamberlain B4505TC Manuel D'installation page 32

Adjustment
1
- Program the Travel
Without a properly installed safety reversal system, persons (particularly small children) could be
SERIOUSLY
INJURED or KILLED by a closing garage door.
Incorrect adjustment of garage door travel limits will interfere with proper operation of safety

reversal system.
After ANY adjustments are made, the safety reversal system MUST be tested. Door MUST reverse

on contact with 1-1/2" (3.8 cm) high object (or 2x4 laid flat) on floor.
While programming the travel, the UP and DOWN buttons can be used to move the door as needed.
The Safety Reversing Sensors will be disconnected during the Program the Travel process. During the
Automatic Force Setup the door will automatically open and close.
1
Press and hold the Adjustment
Button until the UP Button begins
to flash and/or a beep is heard.
The Safety Reversing Sensors
will be disconnected during the
Program the Travel process.
3
Once the door is in the desired
UP position press and release the
Adjustment Button. The garage
door opener lights will flash twice
and the DOWN Button will begin
to flash.
5
Once the door is in the desired DOWN position press
and release the Adjustment Button. The garage door
opener lights will flash twice. Program the Travel is now
complete. If the garage door opener lights flash 5 times,
then programming has timed out and the Travel Limits
have not been set. Please restart the Program the Travel
process.
2
Press and hold the UP
Button until the door is in
the desired UP position.
4
Press and hold the
DOWN button until the
door is in the desired
DOWN position.
2
- Automatic Force Set Up
Once both the up and down positions have been manually set, the Safety Reversing Sensors will
reconnect and become operational. Then, the opener will enter a force-sensing operation by automatically
moving the door open and close. The garage door opener will sound an audible and visual alert before
automatically opening and closing the door. The garage door opener will beep three times, confirming that
the Automatic Force Setup completed successfully. Adjustment is complete.
If you hear one long beep after the door attempts to move, then the Automatic Force Set Up has not
completed successfully. Please start over at step 1 of Program the Travel.
32