Is Your Garage Door Ready - Chamberlain RJO20 Manual

Preparation
(continued)
Is Your Garage Ready?
Use this check list to see if your garage is compatible with the garage door opener requirements. Note that you can
install the garage door opener on either the left or the right side of the garage door.
IMPORTANT: Your garage MUST meet the following requirements to install this opener to ensure safe and proper
operation. If your door does not meet these criteria, you must choose a different model of operator. If your torsion
bar, power source and/or drums do not meet the requirements, contact a trained door systems technician.
REQUIREMENTS CHECK LIST
Sectional garage door:
• Standard sectional door up to 14 feet (4.3 m) high, but only up to 180 sq. ft. (16.7 sq. m).
• Standard sectional doors up to 18 feet (5.5 m) wide, but only up to 180 sq. ft. (16.7 sq. m)
• Standard sectional high lift door (up to 54 inches (137.2 cm) of high lift)
• Any gap between the fl oor and the bottom of the door must not exceed 1/4 inch (6 mm). Otherwise, the safety
reversal system may not work properly. .
Torsion bar and torsion springs:
• Torsion bar is 1 inch (2.5 cm) diameter.
• Torsion bar must extend at least 1-1/2 inches (3.81 cm) past the bearing plate and be free of damage.
• Distance between ceiling and center of torsion bar is 3 inches (7.6 cm) or more.
• Distance between garage wall the torsion bar is mounted on and center of torsion bar is 2-1/2 inches (6.4 cm)
or more.
• A minimum of 8.5 inches (21.6 cm) between the side garage wall (or obstruction) and the end of the torsion
bar.
D rums:
• NOT compatible with reverse wound drums.
• 4-6 inches (10-15 cm) diameter.
• 3-3.9 inch (7.6-9.9 cm) diameter drums may be used on doors up to 430 lbs (194kgs).
Power:
• An electric outlet must be accessible within a 6 foot (1.83 m) diameter of the installation area for the opener.
The outlet must be 120 VAC - 60 Hz ONLY. Contact a qualifi ed electrician if you need an outlet installed.
Previously installed garage door opener has been removed completely.
Ceiling
Wall
Electric outlet
within 6 ft
(1.83 cm) of
opener
Gap between floor and
bottom of door must
not exceed 1/4" (6 mm)
Distance between ceiling
and torsion bar is 3"
(7.6 cm) or more
Torsion bar
8.5 inches
(21.6 cm)
Torsion bar
Wall or
obstruction
4
Torsion bar must extend
at least 1-1/2 inches (3.81
cm) past the bearing plate
Ceiling
3"
(7.6 cm)
Wall
with
2-1/2"
door
Drum
(6.4 cm)
Side view of torsion bar