Chamberlain ATS 211X 1/2 HP Owner's Manual page 16

INSTALLING THE BRACKETS
Figure 1, 2 and 3 show recommended assembly of
bracket(s) and "C" wrap based on the wall
installation of the sensors on each side of the garage
door as shown on page 15, or on the garage door
tracks themselves.
Figure 4 and 5 are variations which may fit your
installation requirements better. Make sure the
wraps and brackets are aligned so the sensors
will face each other across the garage door.
Garage Wall or Door Track Installation
1. Fasten the "C" wraps to the mounting brackets
having square holes, using th hardware shown in
Figure 1.
Garage Wall Installation
2. Connect each assembly to a slotted bracket, using
the hardware show on Figure 2. Note alignment
of brackets for left and right sides of door.
3. Finger tighten the lock nuts.
4. Use bracket mounting holes as a template to
locate and drill (2) 3/16" diameter pilot holes on
both sides of the garage door, 4"-6" above the
floor but not exceeding 6" (see warning on
page 15).
5. Attach bracket assembly with 1/4"x1-1/2" lag
screws as shown in Figure 2.
6. Adjust right and left bracket assemblies to the
same distance out from mounting surface. Make
sure all door hardware obstructions are cleared.
Tighten the nuts securely.
Garage Door Track Installation
Discard slotted bracket. Drill 3/8" holes in each track
and fasten securely with hardware as shown in
Figure 3.
Figure 4
Figure 4
Alternate Wall Mount
Inside
Garage
Wall
Mounting Bracket
with Slot
Garage
Floor
Lock Nut
Screw
#10x32
#10-32x3/8"
Mounting Bracket
with Square Holes
"C" Wrap
Sensor
with wire
Indicator Light
HARDWARE SHOWN ACTUAL SIZE
Lag Screw 1/4x1-1/2"
Figure 1
Figure 1
Garage WALL or DOOR Track Installation
#10-32
Lock Nuts
Figure 2
Figure 2
Garage WALL Installation
Inside
Garage
Wall
Mounting Bracket
with Slot
1/4"-20
Lock Nuts
Figure 3
Figure 3
Garage DOOR Track Installation
Garage
Door Track
Drill 3/8"
Holes
1/4-20x1/2"
Carriage Bolts
Figure 5
Figure 5
Inside
Garage
Wall
"C" Wrap
Garage
Floor
Staples
16
Mounting Bracket
With Square Holes
"C" Wrap
#10-32x3/8"
Screws
1/4x1-1/2" 1/4-20x1/2" Carriage Bolts
Lag Screws (with square shoulder)
"C" Wrap
Mounting Bracket
with Square Holes
1/4"-20 Lock Nuts
Inside
Mounting Bracket
Garage
with Square Holes
Wall
"C" Shaped
Wrap
Alternate Floor Mount
Sensor with wire
Indicator Light
Mounting Bracket
with Square Holes
Mounting Bracket
with Slot
Attach with
concrete
anchors
(not provided)
Carriage Bolts Lock Nut
1/4"-20x1/2" 1/4"-20