Installation question

[stballdvmnest49]

Old system has a wire labeled W/E, where would that attach on a nest thermostat?

[Anonymous]

W1 or W. It depends on the type of system you have.

[stballdvmnest49]

can you elaborate on how to make the decision on which terminal to use, the white wire on the current thermostat goes to W/E, there is a black wire to W2, and it’s a heat pump system

[Anonymous]

W/E - this is where your wiring goes for your old thermostat right? Connect it under W1. Then, you already have W2 wire connected to the same W2 terminal from nest thermostat.

[stballdvmnest49]

Thanks for your reply. After watching a half dozen videos on YouTube I came to that conclusion too. Thanks for your help. I now know more about wiring thermostats than I ever wanted to know😜

[Markjosephp]

Hi everyone,

I wanted to stop by and see how I could help.

Your assistance is much appreciated, @Anonymous.

@stballdvmnest49, I hope you've got the answer you're looking for. I did find a helpful article with additional information about identifying a thermostat wire. If you're still in need of assistance, feel free to let us know.

Best regards,

Mark

[Markjosephp]

Hello stballdvmnest49,

I wanted to see if you still needed help. Please let us know if you have any other questions or concerns.

Best regards,

Mark

[EmersonB]

Hi stballdvmnest49,

Just one quick final check in here since activity has slowed down. We'll be locking the thread in the next 24 hours, but if you still need help, I would be happy to keep it open. If there's more we can do, just let me know.

I appreciate the help, Mark.

Regards,
Emerson