Hi,
I am replacing the controller unit (old no wifi one ~4+ years old) in an exisitng working setup with 12 zones and hot water, and trying to understand best approach before I dive in, and not been able to find anything so far as a guidline other than the clean installations from scratch.
Is it as simple as treating as a new setup and one by one binding rads, boiler etc to new controller replicating zones and they will automatically forget the old controller??
Many thanks in advance for any advice/tips