Chamberlain 3800E Garage Door Opener User Manual


 
Inside
Garage
Wall
Inside
Garage
Wall
Inside
Garage
Wall
INSTALLING THE BRACKETS
Be sure power to the opener is disconnected. Install
Figure 1
DOOR TRACK MOUNT (RIGHT SIDE)
and align the brackets so the safety reversing sensors
will face each other across the garage door, with the
Door
Track
beam no higher than 6" (15 cm) above the floor. They
may be installed in one of three ways,as follows.
Lip
Indicator
Garage door track installation (preferred)
Light
(Figure 1):
• Slip the curved arms over the rounded edge of each
door track, with the curved arms facing the door. Snap
into place against the side of the track. It should lie
Sensor
Bracket
Lens
flush, with the lip hugging the back edge of the track, as
shown in Figure 1.
If your door track will not support the bracket securely,
wall installation is recommended.
WALL MOUNT (RIGHT SIDE)
Fasten Wood Block to Wall with
Figure 2
Wall installation (Figure 2 and 3):
Lag Screws (Not Provided)
• Place the bracket against the wall with curved arms
Indicator
Sensor
Bracket
facing the door. Be sure there is enough clearance for
Light
the sensor beam to be unobstructed.
• If additional depth is needed, an extension bracket
(See Accessories) or wood blocks can be used.
Lag Screws
(Not Provided)
• Use bracket mounting holes as a template to locate and
Lens
drill (2) 3/16" diameter pilot holes on the wall at each
side of the door, no higher than 6" (15 cm) above the
floor.
• Attach brackets to wall with lag screws (Not Provided).
Figure 3
WALL MOUNT (RIGHT SIDE)
• If using extension brackets or wood blocks, adjust right
and left assemblies to the same distance out from the
Extension
Bracket
(See Accessories)
mounting surface. Make sure all door hardware
obstructions are cleared.
Floor installation (Figure 4):
(Provided with
Extension Bracket)
• Use wood blocks or extension brackets (See
Accessories) to elevate sensor brackets so the lenses
will be no higher than 6" (15 cm) above the floor.
• Carefully measure and place right and left assemblies
at the same distance out from the wall. Be sure all door
hardware obstructions are cleared.
• Fasten to the floor with concrete anchors as shown.
(Provided with
Sensor
Bracket
Extension
Bracket)
Indicator
Light
Lens
Figure 4
FLOOR MOUNT (RIGHT SIDE)
HARDWARE SHOWN ACTUAL SIZE
Attach with
Concrete Anchors
(Not Provided)
Carriage Bolt
Wing Nut
Staples
1/4"-20x1/2"
1/4"-20
Lens
Indicator
Light
Sensor
Bracket
15