Setting The Limits & Right Or Left Operation; Setting The Open Limit; Setting The Bottom Limit; Test The Door - Chamberlain Merlin Professional MR850 Installation And Operating Instructions Manual

LMT
Press and hold
professional
until
FLASHING
LED
Right bank
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will light up
MR850
professional
(IF REQUIRED)
professional
To change
&
LRN LMT
press and hold
until correct
bank lights up
Left bank
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MR850
will light up
professional
for Left hand
installation
professional
Drive door UP to
LMT
desired height
If required: Use LRN (DOWN)
professional
Activate door
Immediately the door starts down
professional
Press and hold to drive
LRN
door down to closed
If required: Use LMT (UP) to adjust
professional
Activate door to open
Orange
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MR850
LED ON &
professional
Courtesy LEDS
on Dim
professional
Close the door to test limits
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MR850
Motor will make a click &
professional
FULL BRIGHT courtesy
LEDs will turn on