Hang The Opener - Chamberlain Merlin Professional MT230 Installation And Operating Instructions Manual

13

HANG THE OPENER

The opener must be securely fastened to a structural support
of the garage.
Three representative installations are shown. Yours may be
different. Hanging brackets (1) should be angled (Figure A)
to provide rigid support. On finished ceilings, (Figure B)
attach a sturdy metal bracket (not supplied) (4) to a structur-
al support before installing the opener.
For concrete ceiling mount, (Figure C), use concrete anchors
(5) (provided).
On each side of opener measure the distance from the open-
er to the structural support (or ceiling).
Cut both pieces of the hanging bracket to required lengths.
Flatten one end of each bracket and bend or twist to fit the
fastening angles. Do not bend at the bracket holes. Drill 4,
5mm (3/16") pilot holes in the structural supports (or ceiling).
Attach flattened ends of brackets to supports with wood
screws (2).
Lift opener and fasten to hanging brackets with screw, lock washer. Check to make sure the pole is centred over the
door. REMOVE 50mm board. Operate door manually. If door hits the pole, raise header bracket.
14
ATTACH MANUAL RELEASE ROPE & HANDLE
Thread one end of rope (1) through hole in top of red handle so
"NOTICE" reads right side up as shown (3). Secure with an over-
hand knot (2). Knot should be at least 25mm (1") from end of the
rope to prevent slipping. Thread other end of rope through hole in
release arm of the outer trolley (4). Adjust rope length so that han-
dle is 1.8m (6 feet) above the floor. Secure with an overhand knot.
Note: If it is necessary to cut rope, heat seal cut end to
prevent fraying.
DO NOT DISENGAGE THE OPENER TO MANUAL OPERATION WITH CHILDREN, PERSONS OR OTHER
OBJECTS INCLUDING MOTOR VEHICLES WITHIN THE DOORWAY: (The door is under significant tension and if
the door has developed a fault or incorrect tension, it may be unsafe and may fall rapidly.)
Door should be released in the closed
position if possible.
To Disengage:
Pull down the on red handle.
DO NOT USE THE HANDLE TO OPEN OR
CLOSE THE DOOR.
To Engage:
Pull the red handle up and back towards the
opener. The trolley will engage when opener
is activated.
A
2
2
1
6
2
3
5
DOOR
2
DOOR
Disengaged
8
B
4
3
3
2
1
6
C
2
6
2
4
1
3
DOOR
Engaged
2
3
5
1
3