There are simply two wires on the central vac motors (usually). Cut the two wires on the old motor, remove the old motor, install the new motor, and connect the old motor wires to your new motor wires with twist-on wire fasteners (After you strip half an inch of inslation from the ends) . It is A/C, so reversing the wires won't matter, though it is customary to match the white to the white and the black to the black (if they are different colors).
Help Around the House, September 2006
