Nest Wiring for Trane TAM8

[JD17]

Hello, 

Where can I find the wiring diagram to connect to a Trane TAM8 heat pump?

[ByronP]

Hi JD17,

Thank you for posting in the community. I understand that you would like to check the wiring diagram to connect your Nest Thermostat with your Trane TAM8 heat pump. Let's work together to find a solution.

For further assistance, I need to ask a few questions:

• What type of Nest thermostat do you have?
• Have you used the online compatibility widget before you purchased the device? (Here are the compatibility checkers for the US and compatibility checkers for the UK and EU.)

Please keep me posted. I look forward to your response.

Regards,

Byron

[JD17]

Hi Bryon,

Gen3

Yes, could not find the diagram wired the way mine is.

[ByronP]

Hi JD17,

Thank you for your response. Based on your answers. Please do the following:

• Please send me a picture of your existing wiring for the old thermostat; also send the picture of the board configuration for your Trane TAM8 heat pump system.
• For the diagram that you requested, it should be on the boiler or pasted on your Trane TAM8 heat pump. Then you can use the previous link suggested to check the compatibility.

Let me know how it goes and keep me posted.

Regards,

Byron