Chamberlain B550 B550 B552 B750 Owner s Manual - English - Page 27

Step 15 Connect Power, Option A - Typical Wiring, Option B - Permanent Wiring

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Installation STEP 15 Connect power To prevent possible SERIOUS INJURY or DEATH from electrocution or fire: l Be sure power is NOT connected to the opener, and disconnect power to circuit BEFORE removing cover to establish permanent wiring connection. l Garage door installation and wiring MUST be in compliance with ALL local electrical and building codes. l 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 run the 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 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 garage door opener into a grounded outlet. 2. 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 inch hole in the top of the motor unit (according to local code): 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. The opener must be grounded. 4. Reinstall the cover. Ground Tab Green Ground Screw Ground Wire White Wire Black Wire 27

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27
Installation
STEP 15 Connect power
To prevent possible SERIOUS INJURY or DEATH from electrocution or fire:
l
Be sure power is NOT connected to the opener, and disconnect power to circuit BEFORE removing cover to
establish permanent wiring connection.
l
Garage door installation and wiring MUST be in compliance with ALL local electrical and building codes.
l
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 run the 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 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 garage door opener into a grounded outlet.
2.
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 inch hole in the top of the motor unit (according to local code):
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.
The opener must be grounded.
4.
Reinstall the cover.
Ground Tab
Green Ground Screw
Ground Wire
White Wire
Black Wire