Chamberlain CPS-U Manual page 2

INSTALL MODEL CPS-U
ASSEMBLE AND MOUNT THE BRACKETS
The following instructions show recommended assembly of the
bracket(s) and "C" wrap based on the wall installation of the
photoelectric sensors on each side of the door or on the door
tracks themselves. There are also alternate mounting methods which
may fi t your installation requirements better.
Make sure the wraps and brackets are aligned so the
photoelectric sensors will face each other across the door.
Mount sensors no more than 6" (15 cm) above the fl oor and at a
width between 7'-30'.
1. Fasten the "C" wraps to the mounting brackets having square
holes, using hardware shown.
WALL INSTALLATION
2. Connect each assembly to a slotted bracket, using the hardware
shown. Note alignment of brackets for left and right sides
of the 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" (10-15 cm) above the fl oor. Do not exceed 6" (15 cm).
5. Attach bracket assemblies with 1/4"x1-1/2" lag screws.
6. Adjust right and left side bracket assemblies to the same
distance out from mounting surface. Make sure all door
hardware obstructions are cleared. Tighten the nuts securely.
DOOR TRACK INSTALLATION
2. Discard slotted bracket. Drill 3/8" holes in each track and fasten
securely with hardware .
ALTERNATE WALL INSTALLATION
Inside
Wall
Floor
Mounting Bracket
with Slot
Mounting Bracket with
Square Holes
"C" Wrap
Sensor with Wire
Indicator Light
Mounting Bracket
with Square Holes
#10-32
Lock Nuts
1/4x1-1/2"
Lag Screws
Inside
Wall
Mounting Bracket
with Slot
1/4"-20
Lock Nuts
Door Track
Drill 3/8" Holes
1/4-20x1/2" Carriage Bolts
ALTERNATE FLOOR INSTALLATION
Inside
Wall
"C" Wrap
Floor
2
"C" Wrap
#10-32x3/8"
Screws
1/4-20x12" Carriage Bolts
(with square shoulders)
"C" Wrap
Mounting Bracket with
Square Holes
1/4" Lock Nuts
Inside
Wall
Mounting Bracket with
Square Holes
Sensor with
Wire
Indicator Light
Mounting Bracket with
Square Holes
Mounting Bracket with Slot
Attach with Concrete
Anchors (Not Provided)
"C" Wrap