Carrier Infinity

[DonNest]

Hello,

I just moved into a nice Boston suburb home which has a nice Carrier Infinity system installed. I believe it has a heat pump, gas furnace and a humidifier. I want to install a nest thermostat. Is it possible and compatible?

Thanks for help!

[MelbaDT]

Hi DonNest, 

Thanks for your interest on our Nest thermostats. 

I suggest that you check our online Compatibility Checker to ensure that your system is compatible. You may also check on this link for more information: https://bit.ly/3qZ6OQ1

If you still need help, please post a photo of your current thermostat wires and the exact make and model of your Carrier Infinity system so I can check on if further.

Best, 

Melba

[MelbaDT]

Hey there, 

Checking back in if you still need our help. 

Best, 

Melba

[DonNest]

Thanks. I will take a picture of the wiring soon and look up the make and model of my system.

Thanks

[MelbaDT]

Hey DonNest, 

Understood. Keep us posted by simply replying to this thread. 

Best, 

Melba

[DonNest]

Thank you. How do I upload pics to this forum or can I email it to you? Thanks 

[MelbaDT]

Hey there, 

Please upload it here. 

Best, 

Melba

[DonNest]

This forum page unfortunately, doesn't let you upload a picture. I have to find a host and paste the url link.

[MelbaDT]

Hey there, 

That's odd. Is it possible to use a computer if you have one? There should be an option to drag and drop a file to your response there. 

Best, 

Melba

[MelbaDT]

Hey there, 

Checking back in again — we're here if you still need us. 

Best, 

Melba

[DonNest]

[MelbaDT]

Hey there, 

Thanks for these photos. Upon checking, the wires in your thermostat’s connector have non-standard labels (for instance 1,2,3, or A, B, C). This means that your system is proprietary.  I'm afraid that proprietary systems aren’t compatible with Google Nest thermostats. However, some proprietary systems can be rewired by a pro installer to be compatible.

You may also check on this link for more information: https://bit.ly/2KOTqgW

Best, 

Melba

[MelbaDT]

Hey there, 

Checking back in —still need our help?

Best, 

Melba

[DonNest · Accepted solution]

No thanks. It looks like I'd need specialized help to rewire the controller wires to match with the standard, C, Y, D, etc. instead of my ABCD,

[MelbaDT]

Hi, 

Gotcha and thanks for understanding. We'll close this thread for the meantime but feel free to reach out should you have any new issues, updates or just a discussion topic, feel free to start a new thread in the community.

Best, 

Melba