So I find out that Trane sells a "checkout kit" for this controller. Basically just a couple jumpers with resistors.
So I tell the guy at the Trane parts center to go ahead and order it for me, thinking it could be a usefull little tool to have. Can't be more than 20 bucks, right? Well I should have asked how much it was, because when it came in I was shocked to learn that it was 80 bucks!!
This is a honeywell product and by doing a little sniffing around, I found out that it's a restricted item (honeywell only sells this to Trane) and Trane gets them for 9 bucks a pop! Unbelievable. Talk about a mark-up. geesh.