Hello Pacorro,
Thank you so much for posting in this community. I understand that you’d like to know if you can use the Nest Thermostat E on your wiring system. No worries; I’m willing to help you.
Regarding your concern, your current wiring system isn't compatible with the Nest Thermostat E. However, it is compatible with the Nest Learning Thermostat (3rd and 4th generation). To verify this information, please use our Compatibility Checker tool.
If you have any further questions, please don't hesitate to reach out through this forum.
Best regards,
Daniel
