I figured it out. The White and the Blue wires are for the high speed. The Violet (purple) and the White/Black wires are for the low speed. However, it won't work if you just put a hot and ground on the White and Blue wires. You have to use the "starter". At the same time you put power on the White and Blue wires, you must also hook up the Yellow and Black wires. The Yellow and Black wires go the the motors "starter". What this does is get the motor turning. Once the motor is turning, the power to the White and Blue wires will contine to keep it turning. Disconnect the Yellow and Black wires 5 seconds after you applied power to both circuits. I wired the Yellow and Black wires to one plug, and the White and Blue wires to another plug. You can also wire them to seperate switches (which I will do eventually). It works great.
David Nichols
July 2007