Chamberlain 8500W User Manual page 5

Power
To reduce the risk of electric shock, your garage door
opener has a grounding type plug with a third grounding
pin. This plug will only fi t into a grounding type outlet.
If the plug doesn't fi t into the outlet you have, contact a
qualifi ed electrician to install the proper outlet.
OPTION A: TYPICAL WIRING
1. Plug in the garage door opener into a grounded outlet.
2. DO NOT run garage door opener 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 inch hole
in the back of the garage door opener (according to local
code):
1. Be sure power is NOT connected to the opener, and
disconnect power to circuit.
2. Remove the garage door opener 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 fl ex cable
adapter (not provided) to the 7/8" hole. Reinstall
garage door opener 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.
To prevent possible SERIOUS INJURY or DEATH from
electrocution or fi re:
• Be sure power is NOT connected to the opener, and
disconnect power to circuit BEFORE removing cover
to establish permanent wiring connection.
• Garage 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 fi t outlet. Be sure
the opener is grounded.
90˚
Connector
(Not
Provided)
BACK VIEW
Flexible
Conduit
Green
Ground
Screw
Black Wire
Green Wire
White Wire
Ground Wire
Wire Nuts
(Not Provided
Black Wire
White Wire
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