Chamberlain 248739 garage door opener

User Manual - Page 22

For 248739.

PDF File Manual, 44 pages, Download pdf file

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MOUNTINGANDWIRINGTHESAFETY
REVERSINGSENSORS
Mounting:
Slidea t/4"-20xl/2" carriage bolt head into the slot
oneach sensor. Usewing nuts to fasten sensors
to brackets, with Iensespointing toward each other
across the door. Be sure the Jensis not obstructed by a
bracket extension (Figure 5).
° Fingertighten the wing outs.
Option A - Installation Without Pre-Wiring:
- Runthe belt wire from bOtt_sensors to the garage
door opener.Attach the wire to thewall and ceiling
with the staples (Figure6).
Option B - Pro-Wired Insta!lation:
if your garagealready haswires installed for the safety
reversing sensors, follow the instructions below:
Cut theend of the safetysensor wire, making sure there
is enough wire to reachthe preqnstalied wires from the
waii (Figure 7).
Separatethe safety sensor wfres andstrip 7/16 inch
(11 ram) of insulation from each end. Choosetwo of
the pre-installed wires and strip 7/16 inch (11 ram) of
insulation from each end. Makesure thatyou choose
the samecolor preqnstafled wires for each sensor
(Figure 8).
Connectthe pre-installed wires to the sensor wires with
wire nuts making sure the Colors correspond for each
sensor (figure 9).
Figure5
Carriage 80It
1/4"-20xl/2"
Figure6
Figure 7
Wing Nut
Lens
Figure 8
SafetyReversing_)_7it 6_
SensorWires
(
Pre-lnstaBledWires
Figure 9 Not Provided
Safety Reversing Pre-instaIled
Sensor Wires wires
I White/Black
22
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