topic Re: Nest System Compatibility. in Nest Thermostats https://www.googlenestcommunity.com/t5/Nest-Thermostats/Nest-System-Compatibility/m-p/492381#M106498 <P><a href="https://www.googlenestcommunity.com/t5/user/viewprofilepage/user-id/434648">@DLauch</a>&nbsp;</P> <P>Only the Nest Learning Thermostat is 100% compatible with your current thermostat.</P> <P>Trane labels its C wire as B.</P> <P>&nbsp;</P> Tue, 17 Oct 2023 02:15:36 GMT Patrick_Caezza 2023-10-17T02:15:36Z Nest System Compatibility. https://www.googlenestcommunity.com/t5/Nest-Thermostats/Nest-System-Compatibility/m-p/492269#M106461 <P>I have a Trane heat pump with the following connected wires in my current thermostat.&nbsp;<BR />R, W1, W2, Y1, G, O, B&nbsp;</P><P>Are Nest Thermostats Compatible with my system.&nbsp;<BR /><BR /></P> Mon, 16 Oct 2023 20:29:56 GMT https://www.googlenestcommunity.com/t5/Nest-Thermostats/Nest-System-Compatibility/m-p/492269#M106461 DLauch 2023-10-16T20:29:56Z Re: Nest System Compatibility. https://www.googlenestcommunity.com/t5/Nest-Thermostats/Nest-System-Compatibility/m-p/492381#M106498 <P><a href="https://www.googlenestcommunity.com/t5/user/viewprofilepage/user-id/434648">@DLauch</a>&nbsp;</P> <P>Only the Nest Learning Thermostat is 100% compatible with your current thermostat.</P> <P>Trane labels its C wire as B.</P> <P>&nbsp;</P> Tue, 17 Oct 2023 02:15:36 GMT https://www.googlenestcommunity.com/t5/Nest-Thermostats/Nest-System-Compatibility/m-p/492381#M106498 Patrick_Caezza 2023-10-17T02:15:36Z