B
bruno202006
doing a boiler and heating controls upgrade here in Ireland through a grant system. new grant vortex being installed but system is currently setup with 3 pumps in hotpress, 1 for downstairs, 1 for upstairs and 1 for cylinder. automatic bypass is required as part of the requirements. would a tee off after each pump fed back through the bypass onto the cold line work? normally have a pump at boiler and zone valves inside. system will have boiler interlock