Nest Thermostat 2024 Installation Video. Take pictures of your current wiring configuration in case you need to refer to them later; Installation guide (11 pages, 0.5 mb) nest learning thermostat (3rd gen) installation guide (12 pages, 0.3 mb) welcome guide (2 pages, 0.6 mb) nest learning.
Switch off the power to your heating and cooling system before disconnecting your old thermostat; Follow the printed guide in the product box for your model’s installation, or use the nest compatibility checker to get a custom installation guide.