8 Wire Thermostat with 3 fan speeds

[Banchukov]

Hello,

I'm trying to change my old thermostat to a Nest Learning one and upon opening the old system I saw wire labels that have description (Heat, Cool) however there are 2 wires for the 24 (50/60 and com). I would greatly appreciate if someone can tell me if the system is compatible with Nest and if so, where I should connect the wires.

Thank you 

[EdwardT]

Hi Banchukov,

Thanks for reaching out. The wiring of  your current thermostat looks like it's proprietary. Proprietary systems aren’t compatible with Google Nest thermostats. However, some proprietary systems can be rewired by a pro installer to be compatible.

Thanks,

Edward

[Banchukov]

Hi Edward, thank you for the reply. I did actually found several people with the same setups who succeeded in the installation. I followed their instructions and Nest is fully functioning. 

[EdwardT]

Hi Banchukov,

Thanks for the update! I'm glad to hear that you were able to get it working. I will be locking this thread now. Please feel free to create a new thread should you have some more questions or concerns in the near future and we'll be more than glad to help.

Thanks,

Edward