Google Nest Community

Valerio80 · 12-04-2023

Hi guys,First time posting here. I'm upgrading the control of my home with smart devices and now it is time to work on thermostats.My home system is set as the following:- two separate units (Trans XR80)- one unit controls the living area as a single...

Valerio80 · 12-20-2023

So, as of now things have not worked out. The pro that was supposed to run the installation explained I would need to change my board, since both the O and B wires are in use. I'll have that done, but I have to be patient.

Valerio80 · 12-05-2023

Adding also this diagram as it might be useful. Any help is very appreciated! 

Valerio80 · 12-05-2023

It seems that now I can upload photos! here we are. These are the pictures of the primary thermostat for the two-zone system and the control board at the actual unit.

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help with wiring a gen3 learning thermostat in a system with two zones (O and B wires involved)

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Re: help with wiring a gen3 learning thermostat in a system with two zones (O and B wires involved)