Planning - Chamberlain 3110C 1/3 HP 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.
Gap between floor and bottom of
door must not exceed 1/4" (6 mm).
Safety
Reversing Sensor
ONE-PIECE DOOR WITHOUT TRACK
Header Wall
Gap between floor and bottom of
door must not exceed 1/4" (6 mm).
Safety
Reversing Sensor
Header Wall
Extension Spring
OR Torsion Spring
Vertical
Centerline
of Garage Door
Safety
Reversing Sensor
Access Door
Safety Reversing
Sensor
FINISHED CEILING
Support bracket &
fastening hardware
is required.
See page 15.
Rail
Wall-mounted
Door Control
Access Door
Rail
ONE-PIECE DOOR WITH TRACK
Wall-mounted
Door Control
Safety
Reversing Sensor
4
Motor unit
Motor unit
Access
Door
Safety
Reversing Sensor
Gap between floor and bottom of
door must not exceed 1/4" (6 mm).