Chamberlain 8200 1/2 HP - Manual (Page 5)

Safety Reversing Sensor
FINISHED CEILING
Support bracket
& fastening
hardware is required.
See page 17.
Safety
Reversing
Sensor
Header
Wall
Access Door
Gap between floor and bottom
of door must not exceed 1/4".
5
Closed Position
Belt
Pulley Bracket
Header
Bracket
Trolley
Straight
Door
Arm
Manual
Release
Rope & Handle
Door
Bracket
Curved
Door
Arm
Header
Wall
Belt
T-rail
Garage
Door
Before you begin, survey your garage area to see whether any of the conditions below apply to your installation.
You may find it helpful to refer back to this page as you proceed with the installation of your opener.
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 13 - Look at the wall or ceiling above
the garage door. The header bracket must be
securely fastened to structural supports.
• Step 5, page 17 - Do you have a finished ceiling in
your garage? If so, a support bracket and additional
fastening hardware (not supplied) may be required.
• Safety reversing sensor, page 21 - Depending on
garage construction, extension brackets (see
Accessories) or wood blocks may be needed to
fasten sensors to mounting locations.
• Step 10, page 22 - Floor mounting of the safety
reversing sensor will require hardware that is not
provided.
• Step 11, page 25 - Generally, a one-piece door
does not require reinforcement. If your door is
lightweight, you can refer to the information
relating to sectional doors on page 24.
• Step 11, page 25 - Depending on your door's
construction, you might need additional mounting
hardware for the door bracket.
• Do you have an access door in addition to the
garage door? If not, Model 7702CB Outside Quick
Release is required. See page 38.
• The gap between the bottom of the garage door
and the floor cannot exceed 1/4". Otherwise, the
safety reverse system may not work properly.
See page 30. The floor or the door should be repaired.
ONE-PIECE Door Installation
One-Piece Door without Track
Access
Door
Floor must be level
across width of door Safety
Reversing Sensor
Safety
Reversing
Sensor
One-Piece Door With Track
Closed Position
Header
Bracket
Belt
Pulley Bracket
Door
Bracket
Straight
Door
Arm
Curved
Door Arm
Trolley
Manual Release
Rope & Handle
T-rail
Garage
Door
Belt
Header
Wall