Testing Safety Obstruction Force - Automatic Technology SecuraLift Trio Installation Instructions Manual

Testing Safety Obstruction Force

CAUTION: Take care when testing the safety
obstruction force. Failure to do so can result in
serious personal injury and/or property damage.
16.1 Test the Close Cycle
a. Press the OPERATE button to open the door (Fig.
28).
b. Place a piece of timber approximately 50mm high
on the fl oor directly under the door (Fig 29).
c. Press the OPERATE button to close door.
d. The door should strike the object and start to re-
open.
16.2 Testing the Open Cycle
a. Press the OPERATE button to close the door (Fig.
28).
b. Press OPERATE again to open the door.
c. When the door reaches approximately half way,
fi rmly grab the door's bottom rail - the door should
stop.
If the door does not reverse readily when closing, or stop
when opening, the force may be excessive and need
adjustment, refer to Step 16.4.
IMPORTANT WARNING: If the door is closing and
is unable to re-open when obstructed, discontinue
use. Do not use a door with faulty obstruction sensing.
Repair fault and re-test before using.
Adjusting Safety Obstruction Force
The safety obstruction force is calculated automatically
and normally does not require adjustment. The only
time the force may need to be adjusted is due to
environmental conditions, such as areas that are windy,
dusty or have extreme temperature changes that affect
the operability and movement of the door.
Step 16.3 - To Increase Force Pressure
a. Press and hold the FORCE MARGIN SET button
(Fig 28).
b. While holding down the FORCE MARGIN SET
button, press the PLUS (+) button.
c. Each press will increase the force margin one step.
The OPEN LIMIT LED will fl ash each time the PLUS
(+) button is pressed to indicate an increase in
force.
d. Test the force again as per Steps 16.1 and 16.2.
e. If the OPEN LIMIT LED fl ashes continuously when
the PLUS (+) button is being pressed, this indicates
that the maximum force setting has been reached.
Step 16.4 - To Decrease Force Pressure
a. Press and hold the FORCE MARGIN SET
button (Fig 28).
b. While holding down the FORCE MARGIN SET
button, press the MINUS (-) button.
c. Each press will decrease the force margin one
step. The CLOSE LIMIT LED will fl ash each time
the MINUS (-) button is pressed to indicate a
decrease in force.
d. Test the force again as per Steps 16.1 and
16.2.
e. If the CLOSE LIMIT LED fl ashes continuously
when the MINUS (-) button is being pressed,
this indicates that the minimum force setting
has been reached.
Step 16.5 - To Recall Factory Set Force
a. Hold down the FORCE MARGIN SET button
and the LIMIT SET button for two seconds.
b. Release both buttons. The default setting
should now be recalled.
SecuraLift ® Trio Overhead Garage Door Opener
Owner Installation Instructions
fi g 28
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