Will this wiring be Nest compatible

[sashakrsmanovic]

Hello 

Ahead of purchasing a Nest Learning thermostat (3rd generation) I'd like to make sure it is compatible with my furnance, for which I have heard is "old". The Nest installation videos I watched online all have 4 wires, which is what I have too. However, I have a blue wire coming, while the videos I have seen all have green wire coming in. 

Would anyone know if this is simply blue=green. 

Thanks in afance

[Patrick_Caezza]

@sashakrsmanovic 

You need to pull the wall plate off of the back of the thermostat so we can see the terminal block and its labels.

[sashakrsmanovic]

Thank you @Patrick_Caezza

This is the back of the existing thermostat, with the panel taken off.  Does that help? 

[Patrick_Caezza]

@sashakrsmanovic 

Yes, it is compatible.

Just match the labels from this thermostat to the ones on the Nest, and you can ignore the gold jumper between R and Rc.

[sashakrsmanovic]

Hello @Patrick_Caezza - just flagging this one again please.