Chamberlain 3585S 3/4 HP User Manual

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INSTALLATION STEP 9
Electrical Requirements
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.
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:
•  
Remove the motor unit cover screws and set the cover 
aside.
•  
Remove the attached 3-prong cord.
•  
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.
•  
Reinstall the cover.
To avoid installation difficulties, do not run the opener 
at this time.
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.
RIGHT
WRONG
Ground Tab
Green 
Ground Screw
Ground Wire
Black Wire
PERMANENT WIRING
CONNECTION
White Wire
Black
Wire