I am wanting to replace my old Honeywell Chromotherm III to a Hunter Set & Save 44260.
The wiring from the old is: W-white, G-green, C-blue, R-red, Y-yellow and orange is not connected (O,W,G,C,R,Rc,B,Y).
My new one is labeled G,RC,RH,Y/O,W/B & Y1 with RC & RH jumped.
I have gone through most of the post and did not see one that helped or I just didn't read all the way through :p.
I have separate units, ouside electric AC and gas heater in the attic if this helps or not
Anyone out there that can help it will be VERY much appreciated

Red- rh with the jumper
y-yellow
c-blue
g-green
w-white

And leave orange the way it was... disconnected

Yep, you just have a ac unit right? Not a heatpump?

Yes, and not that its needed now, but this setup will run the heater to

The best help I could give you is to ask you to take back or throw away the Hunter junk,, if you don`t have a heat pump you have the wrong tstat in more than 1 way. It will work on heat/cool system but not necessary to spend the extra $$ for something you don`t need,not accounting for the fact that $ spent on a much better Honeywell would be around much longer again I`ll say that the Hunter is junk

Thanks for your advice