Connect Power - LiftMaster LJ8950W Manuel

Installation
7

Connect Power

To avoid installation difficulties, do not
run the door operator at this time.
To reduce the risk of electric shock, your
door operator has a grounding type plug
with a third grounding pin. This plug will
only fit into a grounding type outlet. If the
plug doesn't fit into the outlet you have,
contact a qualified electrician to install the
proper outlet.
There are two options for connecting
power:
OPTION A: TYPICAL WIRING
1. Plug in the door operator into a
grounded outlet.
2. DO NOT run door operator at this
time.
OPTION B: PERMANENT WIRING
CONNECTION
If permanent wiring is required by
your local code, refer to the following
procedure.
To make a permanent connection through
the 7/8" hole in the back of the door
operator (according to local code):
1. Be sure power is NOT connected to
the door operator, and disconnect
power to circuit.
2. Remove the door operator from the
torsion bar, remove cover screws and
set the cover aside.
3. Cut the line cord 6" (15.2 cm) above
the strain relief.
4. Squeeze the strain relief and push
into motor unit, then remove the
strain relief from the line cord.
5. Install a 90° conduit (not provided)
or flex cable adapter (not provided) to
the 7/8" hole. Reinstall door operator
to torsion bar.
6. Run wires through conduit, cut to
proper length and strip insulation.
7. Strip 1/2" (1.3 cm) of insulation from
the existing black, white and green
wires.
8. Connect the line to the black wire and
neutral to the white wire with wire
nuts (not provided). Connect ground
wire to the green ground screw.
9. Properly secure wires under plastic
ties so that they do not come into
contact with moving parts.
10. Reinstall cover.
RIGHT WRONG
RIGHT
To prevent possible SERIOUS INJURY or DEATH from electrocution or fire:
• Be sure power is NOT connected to the operator, and disconnect power to circuit
BEFORE removing cover to establish permanent wiring connection.
• Door installation and wiring MUST be in compliance with ALL local electrical and
building codes.
• NEVER use an extension cord, 2-wire adapter or change plug in ANY way to make it
fit outlet. Be sure the operator is grounded.
RIGHT
RIGHT
RIGHT
17
WRONG
WRONG
WRONG
WRONG
Green Wire
90˚
Connector
(Not
Provided)
BACK VIEW
Flexible
Conduit
Green
Ground
Screw
Ground Wire
PERMANENT WIRING
PERMANENT WIRING
CONNECTION
CONNECTION
Ground Tab
Ground Tab
Green
Green
Ground Screw
Ground Screw
Ground Wire
Ground Wire
White Wire
White Wire
PERMANENT WIRING
PERMANENT WIRING
CONNECTION
CONNECTION
Ground Tab
Ground Tab
Green
Green
Ground Screw
Ground Screw
Black Wire
White Wire
Ground Wire
Ground Wire
Wire Nuts
(Not Provided
Black Wire
White Wire
Black
Black
Wire
Wire
Black
Bla
Black
Blac
Wire
Wire
White Wire
White Wire