LiftMaster 8550 8550 Manual - Page 21

Power - parts

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Power 1 Connect Power To prevent possible SERIOUS INJURY or DEATH from electrocution or fire: • 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 fit outlet. Be sure the opener is grounded. To avoid installation difficulties, do not activate the garage door opener at this time. 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 fit into a grounding type outlet. If the plug doesn't fit into your outlet, contact a qualified electrician to install the proper outlet. THERE ARE TWO OPTIONS FOR CONNECTION POWER: OPTION A TYPICAL WIRING 1.1A Plug in the garage door opener into a grounded outlet. 1.2A DO NOT run garage door opener at this time. OPTION B PERMANENT WIRING 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 top of the motor unit (according to local code): 1.1B Be sure power is NOT connected to the opener, and disconnect power to circuit. 1.2B Remove the garage door opener cover and set aside. 1.3B Remove the attached green ground terminal. 1.4B Cut black and white wires and strip away 1/2" (1 cm) of insulation, 3" (7.5 cm) before spade terminals. 1.5B Remove the power cord from opener. 1.6B Install a conduit or flex cable adapter to the 7/8" hole. 1.7B Run wires through conduit, cut to proper length and strip insulation. 1.8B Attach with wire nuts provided. Attach the ground wire to the green ground screw.The opener must be grounded. 1.9B Properly secure wire under plastic ties so that wire does not come in contact with moving parts. 1.10B Reinstall the cover. DO NOT run garage door opener at this time. PERMANENT WIRING CONNECTION Black Wire Ground Wire Ground Tab Green Ground Screw White Wire Wire Nuts 21

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21
1 Connect Power
To prevent possible SERIOUS INJURY or
DEATH from electrocution or fire:
•
Be sure power is NOT connected to the
opener, and disconnect power to circuit
BEFORE removing cover to establish
permanentwiring 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 fit outlet. Be sure the opener is grounded.
To avoid installation difficulties, do not activate the garage door opener at this time.
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 fit into a grounding type outlet. If the plug doesn’t fit into your outlet,
contact a qualified electrician to install the proper outlet.
THERE ARE TWO OPTIONS FOR CONNECTION POWER:
OPTION
A
TYPICAL WIRING
1.1A
Plug in the garage door opener into a grounded outlet.
1.2A
DO NOT run garage door opener at this time.
OPTION
B
PERMANENT WIRING
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 top of the motor unit (according to local
code):
1.1B
Be sure power is NOT connected to the opener, and disconnect power to circuit.
1.2B
Remove the garage door opener cover and set aside.
1.3B
Remove the attached green ground terminal.
1.4B
Cut black and white wires and strip away 1/2" (1 cm) of insulation, 3" (7.5 cm) before spade
terminals.
1.5B
Remove the power cord from opener.
1.6B
Install a conduit or flex cable adapter to the 7/8" hole.
1.7B
Run wires through conduit, cut to proper length and strip insulation.
1.8B
Attach with wire nuts provided. Attach the ground wire to the green ground screw.The opener
must be grounded.
1.9B
Properly secure wire under plastic ties so that wire does not come in contact with moving parts.
1.10B
Reinstall the cover. DO NOT run garage door opener at this time.
Ground Tab
Green Ground
Screw
Ground Wire
Black
Wire
White Wire
PERMANENT WIRING CONNECTION
Wire Nuts
Power