LiftMaster LJ8950W LJ8950W Manual - Page 17

Connect Power, Option A: Typical Wiring, Option B: Permanent Wiring, Connection

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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. 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 WRONG WRONG 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. Green Wire 90˚ Connector (Not Provided) Black Wire White Wire BACK VIEW Flexible Conduit Green Ground Screw Ground Wire Wire Nuts (Not Provided Black Wire White Wire 17

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17
Connect Power
7
Installation
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.
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
WRONG
WRONG
RIGHT
Green
Ground
Screw
Ground Wire
Black Wire
Wire Nuts
(Not Provided
White Wire
Flexible
Conduit
90˚
Connector
(Not
Provided)
Green Wire
White Wire
Black Wire
BACK VIEW
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.