I have a Rudd upflow 90K BTU Modulating furnance that I had installed last year. The furnace installer came with the contractor who did my renovations. He installed the furnace ok but I do not believe he knew what he was doing hooking up the T-stats and the dip switches. I would appreciate if someone could help. Looking at the schematic of the hook up is confusing because they show you two diagrams single stage and 2 stage with heat pump. RtoR, C-C, Y-YL, Y2 not hooked up with no hp, W2-WE jumped? connected to W on furnace, G-G, V-W2. Does this look correct. Also I have a 3TON AC unit connected. should the dip switches come set already? Thanks for all the help everyone.