Chamberlain Security+ 3900PLD - Manual (Page 12)

12
INSTALLATION STEP 7
Electrical Requirements
To avoid installation difficulties, do not run the
operator at this time.
To reduce the risk of electric shock, your operator 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 back of the operator (according to local code):
•
Remove the operator from the torsion bar, remove cover
screws and set the cover aside.
• Remove the attached green ground terminal.
• Cut black and white wires and strip away 1/2" (1.3 cm)
of insulation, 3" (7.6 cm) before spade terminals.
• Remove the power cord from unit.
• Install a 90 o conduit or flex cable adapter to the 7/8"
hole. Reinstall operator to torsion bar.
• Run wires through conduit, cut to proper length and
strip insulation.
• Attach with wire nuts provided.
• Properly secure wire under plastic ties so that wire does
not come in contact with moving parts.
• Reinstall the cover.
To avoid installation difficulties, do not run the
operator at this time.
RIGHT WRONG
Black Wire
From Power Cord
White Wire
From Power Cord
Ground Tab
Green
Ground
Screw
Ground Wire
Flexible Conduit
PERMANENT WIRING CONNECTION
90˚ Connector
Green Wire
White Wire
Black Wire
PERMANENT WIRING CONNECTION
To prevent possible SERIOUS INJURY or DEATH from
electrocution or fire:
• Be sure power is not connected to the operator, and
disconnect power to circuit BEFORE removing cover to
establish permanent wiring connection.
• 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 operator is
grounded.