Hi @Qsm1,
Thanks for reaching out. I'm happy to help you check compatibility between your system and a Nest thermostat.
Great news! Based on the information you provided, your system is compatible with all Nest thermostats, However, for optimal performance, we recommend connecting cable E to the W terminal on your current thermostat. To learn more about Nest thermostats and their compatibility, you can visit our Compatibility checker.
Please let me know if you have any questions from here, as I would be happy to take a closer look and assist you further.
Regards,
Jonathan
