Nest thermostat compatibility

[lseanm]

Trying to determine compatibility with my heart pump system.  There is 1 black wire that isn't labeled...

I also have Y2, W2, RC, W1, Y,G and B.

I have a picture but can't figure out how to post/attach it.

Thanks!

[tajennifer]

Hi Iseanm,

Thanks for your post. I'm sorry for the inconvenience that you are experiencing trying to attach the picture. I can see that your heat pump is partially compatible with your system. But to make sure we need to take an eye on the wires. Feel free to call us to connect with one of our specialists for further assistance.

Regards,

Jenny