Replacing thermostat


Old 09-04-14, 09:55 AM
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Replacing thermostat

I'm replacing a Trane TAYSTAT 570 with a LUX TX9600TSa thermostat. I don't have a wiring diagram for the older Trane thermostat. The wiring was hooked to Green to G, Blue to B, Red to R, Yellow to Y, F not used, White to W, X2 not used and Orange to O. It is a Trane XR11 Heat Pump. I'm using wiring diagram #8 with the new LUX thermostat.
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Old 09-04-14, 10:30 AM
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Not sure what your question is. You will need to make sure the dip switches are set in accordance with your type of system.

Switch #1 set to On/Left=HP
Gas/Elec set to whichever heat you have

The other switches you set to whatever you want the system to do

You will need to connect the B wire to C on the new thermostat.

G is for Fan
B is for the common wire coming from the transformer in air handler
Y is for Cooling
R is for power to thermostat coming from transformer in air handler.
W is for heat
X2 is normally for emergency heat strips
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