Planning - Chamberlain Security+ 3290 Owner's Manual

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.
SECTIONAL DOOR
INSTALLATION
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
ONE-PIECE DOOR
WITHOUT TRACK
Header
Wall
Safety Reversing Sensor
Slack in chain tension
is normal when
garage door is closed.
Torsion
Spring
Vertical
Centerline
of Garage Door
Safety
Reversing
Gap between floor
Sensor
and bottom of door
must not exceed 1/4" (6 mm).
Wall-
Mounted
Door
Control
Safety
Reversing Sensor
Gap between floor and
bottom of door must not
exceed 1/4" (6 mm).
FINISHED CEILING
Support bracket &
fastening hardware
is required.
See page 12.
Extension
OR
Spring
ONE-PIECE DOOR
WITH TRACK
Access
Door
Safety
Reversing
Sensor
4
Motor Unit
Wall-
mounted
Door
Control
Access
Door
Motor Unit
Safety
Reversing
Gap between floor and
Sensor
bottom of door must
not exceed 1/4" (6 mm).
Access
Door