Huwebes, Mayo 28, 2015

Trane Comfort link II XL950 thermostat (TZONE 950AC52ZAA connection with Heatpump

Hello:

I'm replacing an older Trane Thermostat with the subject Trane Comfortlink II xL 950. Here's the issue I have. The new thermostat has only three terminal connections - D - Brown for Data, R - Red for Power and B - Blue for Common. I have additional wires connected to my existing thermostat - Yellow, White and Orange. I am at a total loss as to what to do with these terminals. I do know that the Goodman Heatpump or the Air Exchanger will not operate with connections to these terminals. Please Help.

Thanks,
Mike Perrotto

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