I am replacing my old thermostat (American Standard ASYSTAT655A) with a new Honeywell( FocusPro TH6000 Series) and can't figure the wiring out Here is the wiring that I have..
Red- R
Brown- T
Orange- O
Green- G
Yellow- Y
Black- X2
Blue- B
White- W

Any help would be greatly appreciated. I am assuming that the model I am suppose to use is TH6220D. Thanks

See if this post helps.

SO will go by the white rogers diagram and not hook up the T and X2