Glyco chiller from ac unit

[williamcoates2002]

Hi,
Building a chiller using a window ac unit. Everything done except wiring. I stripped all the digital components out and will use an inkbird to regulate the temp. I'm stuck with the wiring of the condenser fan. It has 6 wires. Gray wire goes to the capacitor. The white, orange and red are the speed wires with red being the highest i believe. This part is fine. I'm not sure what the blue wire should be connected too. It was going to the control panel I removed. I included the schematic from the unit and the motor. Any help greatly appreciated.

 

[CobraVin]

Did you ever figure out which wires did what? I have a spare unit that I want to do something with as well, thanks.