Chamberlain 349544 Garage Door Opener User Manual


 
13
You can attach the header bracket either to the
wall above the garage door,or to the ceiling.
Follow the instructionswhich will work bestfor
your particular requirements.Donot installthe
headerbracket overdrywall.If installinginto
masonry, use concrete anchors (not provided).
HARDWARE
H11 (2)
Lag Screw
5/16"-9x1-5/8"
OPTION A WALL INSTALLATION
2.1A Center the bracketon the vertical
centerline with the bottomedge ofthe
bracketon the horizontal line asshown
(with the arrowpointing toward the
ceiling).
2.2A Markthe vertical set of bracketholes(do
not use the holesdesignated for ceiling
mount).Drill 3/16" pilotholes and fasten
the bracketsecurelyto astructural
supportwith the hardware provided
(H11).
OPTION B CEILING INSTALLATION
2.1B Extend the vertical centerline onto the
ceiling asshown.
2.2B Center the bracketon the vertical mark,
no more than 6" (15 cm) fromthe wall.
Make sure the arrow is pointing away
fromthe wall.The bracket can be
mounted flush againstthe ceiling when
clearance isminimal.
2.3B Markthe side holes.Drill 3/16" pilotholes
and fasten bracketsecurelyto astructural
supportwith the hardware
provided (H11).
UP
Wall Mount
Optional
Mounting
Holes
H11
Vertical
Centerline of
Garage Door
(Header Wall)
Header
Bracket
2x4 Structural
Support
Door Spring
(Garage Door)
Highest Point of
Garage Door
Travel
Horizontal
Line
UP
(Header Wall)
Ceiling Mounting Holes
(Finished Ceiling)
Vertical
Centerline of
Garage Door
Header
Bracket
6" (15 cm)
Maximum
Door Spring
(Garage Door)
H11
Installation
2 Install the Header Bracket