Chamberlain Merlin MJ3800R Installation And Operating Instructions Manual page 7

INSTALLATION STEP 1
MOUNTING THE UNIT
When mounting the unit there are several installation combinations all dependent on clearance and accessibility. Always
Note: the wall angle below is shown in a particular orientation. This may vary from door to door.
mount to the side of the unit at which the sprocket will be fitted.
DIRECT EXISTING ANGLE MOUNT
The unit can be mounted directly to
an existing angle where suitable.
INDIRECT EXISTING ANGLE MOUNT
When there is not enough clearance to allow
for direct existing angle mount the extension
plate can be used to provide sufficient stand
off clearance.
ANGLE BRACKET - WALL MOUNT
Where possible the unit can be
attached to the angle bracket then
onto the wall, or vice versa.
ANGLE & EXTENSION WALL
MOUNT
If more stand off clearance is required, the
extension plate can be used between the
angle bracket and unit.
Existing door frame
Extension plate Exploded view
Exploded View
Extension plate
Exploded View
7
Exploded view
Mounted
Mounted
Mounted
Alternate hand
Mounted
Alternate hand
Alternate hand
Alternate hand