Install Nest . Remove Trane ComLink 2 Thermostat with 3 wires D,R,B. Data,24vac power, 2

[JameseFeldmann1]

Can i replace Trane Thermostat with a Nest thermostat??

[Patrick_Caezza]

No, The Trane uses a proprietary interface that is not compatible with any of the Nest thermostats.

Sometimes the furnace/air handler will also have the regular control terminals and if you install a thermostat cable you can then use a Nest.

[MelbaDT]

Hey folks, 

Thanks for your answer, Patrick_Caezza. 

JameseFeldmann1, we also suggest that you check your system’s compatibility before purchasing a Nest thermostat with our online Compatibility Checker or visit this link for more information about Nest thermostat compatibility: https://bit.ly/3qZ6OQ1

Best, 

Melba

[MelbaDT]

Hey JameseFeldmann1, 

Checking back in should you still have some questions about this. Let us know by replying to this thread. 

Best, 

Melba

[MelbaDT]

Hi, 

We haven't heard from you in a while so we'll be locking this thread if there is no update within the day. If you have any new issues, updates or just a discussion topic, feel free to start a new thread in the community.

Best, 

Melba