Help with nest thermostat installation

[Spladae]

Need help installing my nest thermostat with my current thermostat wiring

 

[Patrick_Caezza]

@Spladae 

Your current thermostat is only fully compatible with the Nest Learning Thermostat, 3rd Gen.

You would wire it like this

Red - R to Rc

Blue - B to C

Orange - O to OB

Green - G to G

White - W1 to W1

Black - X2 to * (set as emergency heat)

Yellow - Y to Y1

If you can live without the emergency heat function, you can use the Google Nest Thermostat and tape off the black wire to the X2 terminal.

Wire it like this

Red - R to R

Blue - B to C

Orange - O to */OB

Green - G to G

White - W1 to W

Black - X2 to (tape off)

Yellow - Y to Y

[Spladae]

Thank you! This worked!

[Markjosephp]

Hello folks,

I wanted to ensure that everything was covered here.

Thanks for sharing a wiring guide, @Patrick_Caezza. Big help!

@Spladae, I'm glad to hear that it was sorted out. I hope you've found the answer you're looking for. If you're still in need of assistance, feel free to let us know. Otherwise, I'll lock this thread for 24 hours.

Regards,

Mark