Trane Thermostat to the Nest, 3 wires D,R,B

[Mkutch]

Trane therm uses 3 wires B,D,R. I have all 5 wires, how do I install nest?

[Markjosephp]

Hello Mkutch,

Thank you for taking the time to let us know about your inquiry.I'd be happy to take a look into this for you.

Based on your thermostat's wiring. If we're going to label them on the Nest Thermostat, it appears to be for power, 24V common, and dehumidifier. To determine your system's compatibility, could you please share a photo of your thermostat's wiring with us? Also, if you could share your system's control panel, I could see what these wires are for.

I'll look forward to your response.

Regards,

Mark

[EdwardT]

Hi Mkutch,

I wanted to follow up and see if you are still in need of any help. Please let me know if you are still having any trouble from here, as I would be happy to take a closer look and assist you further.

Thanks,

Edward

[EdwardT]

Hi Mkutch,

I'm just checking in to make sure that you've seen our response. Please let us know if you have any other questions or concerns as I will be locking this in 24 hours.

Thanks,

Edward