I have a trane Xe 1000 with 8 wires. I have mapped the old leads except the one connected to T. g-g, b-b, o-o, etc
balck to X2 and white to W1.

I only have a Y2, F, S1 and S2 left on the new TCONT802 thermostate to support the T wire. I believe I had it in Y2 and the heat was on instead of cooling. Any suggestions. Thanks