Chamberlain 2280-267 - Manual (Page 4)

4
Planning
Identify the type and height of your garage door. Survey your garage area to see if any of the conditions below
apply to your installation. Additional materials may be required. You may find it helpful to refer back to this page
and the accompanying illustrations as you proceed with the installation of your opener.
Safety Reversing Sensor
Horizontal and vertical reinforcement
is needed for lightweight garage doors
(fiberglass, steel, aluminum,
door with glass panels, etc.).
See page 19 for details.
— — — — — — — —
Header Wall
Safety
Reversing
Sensor
Gap between floor and bottom of door
must not exceed 1/4" (6 mm)
Extension Spring
Torsion Spring
Access Door
OR
Wall-
mounted
Door
Control
Motor Unit
FINISHED CEILING
Support bracket &
fastening hardware
is required.
See page 12.
Vertical
Centerline
of Door
SECTIONAL DOOR INSTALLATION
FINISHED CEILING
Support bracket
& fastening
hardware is required.
See page 12.
Safety
Reversing Sensor
Header
Wall
Access
Door
Safety
Reversing Sensor
Wall-
mounted
Door
Control
Motor Unit
Gap between floor and bottom of door
must not exceed 1/4" (6 mm)
ONE-PIECE DOOR WITHOUT TRACK
Access
Door
Safety
Reversing Sensor
Safety
Reversing
Sensor
Gap between floor
and bottom of door
must not exceed 1/4" (6 mm).
ONE-PIECE DOOR WITH TRACK