Electrical Installation; Safe-T-Beam System Installation - Chamberlain Series OCG Installation Manual

3
SAFE-T-BEAM
WARNING
There should be no electrical power to the operator
while installing Safe-T-Beam System
have plugged in the power cord—UNPLUG IT NOW.
NOTE: The operator will not close the door
automatically unless the Safe-T-Beam
installed.
1. Mounting brackets.
• Mark both sides of garage door frame or wall 5"
above floor. (Fig. 3-1).
• Hold bracket against door frame or wall
– Check brackets extend out from wall far
enough that tongue of bracket is beyond door,
tracks or any door hardware.
– If not:
- "STB" bracket extensions are available
at local dealer.
- Blocks of wood, etc. may be substituted for
extensions.
• Center bracket on your mark (Fig. 3-2).
• Fasten each with 2 screws (44) (Fig. 3-2).
NOTE: Mounting brackets can be attached to the
floor using concrete anchors (not provided).
2. Mounting "STB" source and sensor.
• If garage has only one garage door.
– Determine which side of garage receives most
direct sunlight (Fig. 3-4).
– Red LED should always be on sunny side
whenever possible (Fig. 3-4).
• For multiple doors.
– Preventing crossed signals is critical.
– Place source and sensor modules on adjacent
doors facing in opposite directions (Fig. 3-4).
NOTE: To help prevent interference from sun, "STB"
sensors (Green LED) may be placed further away from
the door opening where they will spend more time in
shadows.
• Slide source/sensor onto tongue of bracket until
it clicks into place (Fig. 3-3).
3. Wiring.
• Route wires (29) using either method shown (Fig. 3-5).
• Wires along boom are held in place with
wire clips.
– Wires can be slipped under the wire clips
already in place.
®
SYSTEM INSTALLATION
wires. If you
®
System is
®
.
[ 44 ]
#10"-16 x 1-1/4"
[ 41 ]
FOR HELP-1.800.929.3667 OR OVERHEADDOOR.COM
FIG. 3-1 Mark door frame.
center of
bracket
FIG. 3-2 Mount
brackets.
SUN
RED GREEN GREEN
LED LED
ONE DOOR TWO DOOR
GARAGE
GARAGE
GREEN
RED RED
LED LED LED
THREE DOOR
GARAGE
FIG. 3-4 "STB" locations.
Dashed Line = striped wire
Solid Line = white wire
Green
Red
Source
Sensor
Power
Head
A
FIG. 3-5 "STB" wiring methods.
mark
tongue
FIG. 3-3 Attaching
"STB's" to brackets.
RED RED GREEN
LED LED LED LED
GREEN GREEN RED
LED LED LED
Green
Red
Source Sensor
Power
Head
B
15