Recent content by markbmwe34

I didn't think anyone else would be up this late. I don't need to worry about the pump as its integral. I think I should connect the cylinder stat common to the boiler live switch (ie boiler on stat on) and the 3 port white to the same (ie boiler on heating on). Then the stat call for heat...

I am wiring via a 10 terminal box to the greenstar 30 cdi boiler that has a built in programer and room stat (radio) , and have a cylinder stat, 3 port valve and zone valve. Because there is no room stat or programer to connect and I only have live switch and live return from the boiler...