Thanks for your comment. So I should either go with the Nest thermostat E? or add a 230v supply to power the Nest Thermostat V3? Does it realy need to be 230v? or could it be 12 or 24v as well?
For the wiring. Blue/Black should go to `W1`. and Blue/Black should go to `C` (for the Nest...
Hi,
I have a problem figuring out how to wire up my nest thermostat. I have a Honeywell cm907. And I want to replace it with the nest thermostat v3
This is my wiring and my heating system.
How do I know if my nest thermostat is compatible?