1-2 of 2 Answers
To make sure that your system is compatible with Nest Learning Thermostat, you can use the Compatibility Checker here: https://store.google.com/us/widget/compatibility/thermostat
Sorry, there was a problem. Please try again later.Best doesn't need the pigtail wire (connector) to work. My system also had a pigtail but no longer needs it. You should be fine. Perhaps look at the install videos online and make sure your wires match up otherwise prior to purchasing
Sorry, there was a problem. Please try again later.
