I'm so sorry for the delay in our response, but I wanted to hop in here to make sure we addressed your concern. I can definitely understand the confusion when it comes to thermostat issues as it can be very odd to figure out sometimes, but I'm happy to look into this for you.
First off, I would suggest using the Compatibility Checker to see if your system is compatible.
Please let me know if you have any further questions or concerns as I'm happy to help.
I just wanted to follow up and ensure you are good to go. 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.