I currently have a system 2 Nest. I purchased a system 4 and would like
to do the simplest install possible. Can I just plug my system 4 into
the existing system 2 receptacle and be finished?
Juan, thank you for your reply. I checked the link you provided and
looks like I cannot interchange the two thermostats. Thus, I have
contacted my HVAC contractor and have an appointment to properly install
the new thermostat (series 4). thank you,...
