I have an older(2011) Trane heat pump/ac with an air handler. I want to upgrade my thermostat to a smart one. My current wire layout at the thermostat is left to right; R, W2/X2, W1, Y, G, O, B. Colors are, red, black, white, yellow, green, orange, blue. At the air handler black(w2/x2) and white(w1) are tied together. How should I wire this up in a new smart thermostat?
