User Manual - Page 29

For 84504RMC. Also, The document are for others LiftMaster models: 87504-267, 84504R*, 84505R, 87802, 84602

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29
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 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.
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.
TYPICAL WIRING
OPTION B - PERMANENT WIRING
1. Remove the motor unit cover screws and set the cover aside.
2. Remove the attached 3-prong cord.
3. Connect the black (line) wire to the screw on the brass terminal; the white (neutral) wire to the screw on the
silver terminal; and the ground wire to the green ground screw. .
4. Reinstall the cover.
Ground Tab
Green
Ground
Screw
Ground
Wire
White Wire
PERMANENT WIRING
Black
Wire
Black
Wire
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