trane thermostat compatiblity with nest

[Sabz1]

i have trane TH6220D1051. having 7-wires. there is no C wire, it have B.

Y2,W2,G,O,B,Y,R

IS IT COMPATIBLE WITH GOOGLE NEST?

[Markjosephp]

Hello Sabz1,

It's nice to see you reaching out here in the Google Nest Community Forum about your system compatibility with the Nest Thermostat! I'd be glad to check into this for you.

You have standard thermostat terminals, and the B terminal is usually for 24V common, which is Nest compatible. To make sure, can you post a picture of your thermostat's wiring? From what country are you posting? Also, is your system a heat pump?

I'll look forward to your response.

Regards,
Mark