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3
See
Con
Sensor Beam
Sensor Beam
6" (15 cm) max. ab
Invisible Light Beam
Protection Area
Liquid Tight
Conduit
Liquid Tight
Junction Box
d Tight
tion Box
Photoelectric Sensor
6" (15 cm) max. above the fl oor
Photoelectric Sensor Beam
6" (15 cm) max. above
the fl oor
Photoelectric Sensor Beam
27.5" (69.8 cm) maximum
above grade
Invisible Light Beam
Protection Area
Connect sensor wire to operator
(refer to Wiring section)
Liquid Tight
Conduit
Liquid
Tight
Junction
Box
INSTALLATION
CONDUIT CONNECTIONS
1. Disconnect power to the operator.
2. Use a liquid tight fi tting (1/2" [1.3 cm] trade size) with sealing washer to connect to sensors. The sensors are provided with 36"
(91.4 cm) long leads. LiftMaster recommends the use of a liquid tight junction box near each sensor to make the connection to the
sensor leads. Use rigid or fl exible liquid tight conduit (depending on local codes) from junction boxes to operator. IMPORTANT: Use a
minimum size 20 ga. copper wire for connection between the sensors and the operator.
Liquid Tight Conduit
Liquid Tight
Junction Box
Liquid Tight
Junction Box
DOOR
GATE
Connect sensor wire to operator
(refer to Wiring section)
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