Ray, post or PM to me every piece of information you can about your coach. Include the serial number (the letter and four digits), model year, anything you can describe about the configuration back there by your engine and AC compressor such as where it is located, how it is mounted etc.

I will take the disc Jerry distributed at POG and do as good a search as I can to see if I can pull up the parts list and drawings. I may need to bug you for additional information, but I can tell you that I just did that research for mine, and the information was so well detailed that I was able to learn the pressure switch part numbers and the pressure range.

I can't promise I will be successful because I can go out to the garage and look at your coach, but I will try.

A general comment for what it is worth. I will be looking at the same data the Prevost parts folks have so if they cannot find it they are either lazy, or they literally cannot find it because over the years yours was changed from standard.