I have a Bryant Thermidistat (about 10 yrs old) connected to an AC/Heat Package. It was a high end Purion system with 2 stage compressor. The thermostat has failed and I would like to hook up a Honeywell 9000 to it. I thought I could just play match the wire. Not so easy. The Thermidistat has the following on 1 strip: S2, S1, B, Hum, Dehum, & C . (I do not have a humidifier or dehumidifier. I do have a temp sensor outside on the unit. On the second strip: W/W1, Y/Y2, G, R, Y1/W2, O/W2 As for the Honeywell strip 1: C, K, Rc, R Strip 2: W-O/B, Y, G, W2-Aux/E, Y2 and L Help?
Also, I have wires connected to the old thermistat. They are O/W2, S2, S1, W/W1, Y/Y2, R, G, Y1/W2, and C for a total of 9 wires.