Where can I find a diagram for the wiring for the fan control center. I need the whole thing not just the thermostat wiring. White rodges is no help.

Your going to have to give more info on the system you have. Fan controls are not obsolete but are now universal designed to work with any of the older systems. Realistically all it is -- is a transformer mounted on a blower relay. But we may be way off on what you and I consider a fan control center.