Illustration Of Door Installation - Chamberlain ATS 211 Owner's Manual

Before you begin, survey your garage area. Do any of the following conditions apply to you?
Horizontal and vertical reinforcement
is needed for lightweight garage doors
(fiberglass, steel, aluminum, door with glass panels, etc.).
See page 19 for details.
Safety Reversing Sensor
Based on your particular requirements, there are
several installation steps which might call for
materials and/or hardware not included in the
carton.
• Step 1, page 8 - Look at the wall or ceiling above
the garage door. The header bracket must be
securely fastened to structural supports.
• Step 5, page 12 - Do you have a finished ceiling in
your garage? If so, a support bracket and
additional fastening hardware may be required.
• Safety reversing sensor, page 16 - Depending
upon garage construction, wood blocks may need
to be fastened to mounting locations before
sensors are installed.
• Step 10, page 17 - Alternate floor mounting of the
safety reversing sensor will require hardware not
provided.
• Step 11, page 19 - Do you have a steel, aluminum,
fiberglass or glass panel door? If so, horizontal
and vertical reinforcement is required.
• Look at the garage door where it meets the floor. It
must close on the floor all the way across. Other-
wise, the safety reverse system may not work
properly. See page 23. Floor or door should be
repaired.
• If your door is more than 7 feet high, see longer
rails available on page 30.
Header Wall
Door Center
Floor must be level
across width of door
FINISHED CEILING
Support bracket &
fastening hardware
is required.
See page 12.
Slack in chain tension
is normal when
garage door is closed.
Extension Spring
OR
Torsion Spring
Access Door
Safety
Reversing
Sensor
Closed Position
Header Chain Pulley
Bracket Bracket
Chain
Garage
Door
Spring
Header
Wall
Door Bracket
Garage
Door
• The opener can be installed within 2 feet to the left or
right of the door center if there is a torsion spring or
center bearing plate in the way of the header bracket
or door bracket area. If your door has extension
springs, the opener must be installed in the center of
the door. See pages 8 and 19.
Do you have an access door in addition to the garage
door? If not, Model 1702 Outside Quick Release is
required. See page 30.
You may find it helpful to refer back to this page as
you proceed with the installation of your opener.
4
Rail
Trolley
Manual
Release
Straight
Rope & Handle
Door
Arm
Curved
Door
Arm