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13
SETTING THE LIMITS & RIGHT OR LEFT OPERATION
Travel limits set how far your door goes up and down. Your opener must be configured correctly for right or left
hand installation to operate correctly, if not the door will rotate in the reverse direction.
NOTE: The MR850 opener is factory configured for right hand installation.
The opener will operate during this procedure. Make sure the door is clear of obstruction.
Ensure your hands are away from any moving parts before activating the door.
Setting right or left hand operation:
• Ensure the door is positioned halfway, the opener
is engaged, and the power is turned on.
• Press and hold the LMT (Limit) button until the
orange indicator LED starts flashing, and then
release. Either right or left courtesy LEDs will
light up.
• For right hand installations, the right side bank of
LEDs must light up, and for left hand
installations, the left hand bank must light up.
• If the incorrect bank of LEDs is illuminated,
simply press both LRN and LMT buttons
simultaneously until opposite bank lights up.
Setting the open limit:
• Press and hold the LMT (Limit) button, until the
door reaches the desired open position, and then
release. You can adjust the door by using the
LRN (down) button and LMT (up) button to adjust
as necessary. Make sure there is enough room
for your vehicle to pass under.
Setting the bottom limit:
• Press and release the ACTIVATION button, this
sets the UP limit, and begins closing the door.
IMMEDIATELY press and hold the LRN (Learn)
button until the door reaches the desired closed
position. If the door closes too hard against the
floor, use the LMT (up) and LRN (down) button to
adjust.
• Press and release the ACTIVATION button, this
sets the DOWN position and begins opening the
door to the fully open position.
Test the door:
• Close and open the door 3 or 4 times using the
ACTIVATION button to confirm the limit settings.
• If the door does not complete the test cycle
proceed to section 14 to set the force.
• Leave the door in the up position.
NOTE: The force must now be set in order to
complete your installation (refer section 14).
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LRN
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Immediately the door starts down
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7
LMT
Press and hold
until
FLASHING
LED
Right bank
will light up
(IF REQUIRED)
To change
&
LMT
press and hold
until correct
bank lights up
Left bank
will light up
for Left hand
installation
Drive door UP to
LMT
desired height
If required: Use LRN (DOWN)
Activate door
Press and hold to drive
LRN
door down to closed
If required: Use LMT (UP) to adjust
Activate door to open
Orange
LED ON &
Courtesy LEDS
on Dim
Close the door to test limits
Motor will make a click &
FULL BRIGHT courtesy
LEDs will turn on
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