Air Conditioner Replacement Procedure?

If you are just getting aa exact replacement unit without increasing the size or design, there is no need to rewire any component. The unit will normally be compatible with your existing wiring assuming that it is in good condition and complete. HVAC repairmen and installers are authorized to perform this work without the assistance of a licensed electrician. It is a simple disconnect and reconnect. In many cases the electrical requirements of modern units will require less electrical capacity compared to older units. They are much more energy efficient.