LiftMaster ATSW Mode D'emploi page 22

Install the Protector System
OPTION B PRE-WIRED INSTALLATION
1. Cut the end of the safety reversing sensor wire, making sure there is enough wire to reach the pre-installed
wires from the wall.
2. Separate the safety reversing sensor wires and strip 7/16 inch (11 mm) of insulation from each end.
Choose two of the pre-installed wires and strip 7/16 inch (11 mm) of insulation from each end. Make sure
that you choose the same color pre-installed wires for each sensor.
3. Connect the pre-installed wires to the sensor wires with wire nuts making sure the colors correspond for
each sensor. For example, the white wire would connect to the yellow wire and the white/black wire would
connect to the purple wire.
4. At the door operator, strip 7/16 inch (11 mm) of insulation from each end of the wires previously chosen for
the safety reversing sensors. Twist the like-colored wires together.
5. Insert the wires connected to the white safety sensor wires to the white terminal on the door operator.
Insert the wires that are connected to the white/black safety sensor wires to the grey terminal on the door
operator.
®
1
Pre-installed wires
Safety reversing
sensor wires
3
Safety reversing
sensor wires
White
White/Black
4
Yellow
Purple
7/16"
(11 mm)
22
2
7/16"
(11 mm)
Not Provided
Pre-installed wires
Yellow (for example)
Purple (for example)
Yellow Purple
5
(for example) (for example)
To insert or remove the wires from
the terminal, push in the tab with a
screwdriver tip.