From Hive
Our receivers are supplied from mains (the permanent live and permanent neutral connections). The single channel receiver has “dry contacts” or “zero volt contacts”, that means it acts like a switch connecting the signal input terminal (shown as “Common” in our install guide) to the...
Yeah that caught me out initially. The problem I have is the boiler runs on a low voltage (dry contact) switch but hive works on wet contact so I believe, so do I wire it into the existing controller I.e. run the normally open in to the common on the controller?