What wires are needed for Nest thermostat?

Nest thermostats can work with systems that use Service Light (L) wires. While L wires cant be connected to the Nest thermostat, they dont need them. The Nest thermostat and Nest app will show you system status information without connecting L wires.

How do I connect the wires to my Nest thermostat?

2:556:09How to install the Google Nest Learning Thermostat - YouTubeYouTubeStart of suggested clipEnd of suggested clipSimply hold down the connector button and push the wire all the way.MoreSimply hold down the connector button and push the wire all the way.

Where does black wire go on Nest?

Hi Salman Zuberi, Welcome to Google Nest Community Forum. Your old thermostat wiring will serve as a reference for identifying wires and correctly installing your Nest thermostat. The black wire going to the Y terminal on your old thermostat should be connected to the Y1 terminal of the Nest Thermostat.

Where does the yellow wire go on a Nest Thermostat?

To wire up your Nest Thermostat, simply:Connect the Red wire from the transformer to either the Rc or Rh terminals (as they are connected internally)Run the White Wire from the furnace to the W terminal.Connect the Yellow Wire from the compressor to the Y Terminal.More items •1 Sep 2021

Where does W2 wire go on nest?

Use the wiring diagram you got from the compatibility checker in step 4 to connect your system wires to the Nest Thermostat. Note: If you have an R, Rc or Rh wire, you can put it into the R connector on the Nest Thermostat. If you have a W2, Y2 or O/B wire, you can put it into the *O/B connector, if needed.

What do I connect the blue wire to?

The blue wire from the ceiling fan gets connected to the second live wire from the ceiling. This second wire can vary in color but is most commonly red or black. This connection allows you to power your lights from the second switch.