Thanks for posting. I understand that you are looking for help with the wiring of your system and the Nest Thermostat. In this case, it seems like the wiring that you share is compatible with the Nest Thermostat that we have. But don't worry you can enter the letters of your wiring on the "Compatibility Checker" to make sure by yourself. I just need to ask:
What type of Nest Thermostat do you want to connect?
Do you want to install the Nest Thermostat by yourself or do you want to contact a specialist?
