Is it possible to combine a Y plan 3 port valve and an S plan two port valve onto the same boiler system?
This enquiry is made to see if it is possible to achieve 1 x HW zone and 2 x Heating zones within the same system, but without the ineherent bypass problems of achieving pump overrun in an S plan system with three No. two port valves? I'd also like to avoid installing a fixed bypass to say, a manually valved radiator / towel rail.
(Although many boilers now have integral bypass valves fitted, some manufacturers are advising against relying on the bypass valve to overcome the closed head problem because of 1. noise when the valve operates and 2. insufficient heat dissipation when relying on the integral bypass valve).
There is an assumption in my query that there would be at least one radiator per circuit without TRV's fitted.
This enquiry is made to see if it is possible to achieve 1 x HW zone and 2 x Heating zones within the same system, but without the ineherent bypass problems of achieving pump overrun in an S plan system with three No. two port valves? I'd also like to avoid installing a fixed bypass to say, a manually valved radiator / towel rail.
(Although many boilers now have integral bypass valves fitted, some manufacturers are advising against relying on the bypass valve to overcome the closed head problem because of 1. noise when the valve operates and 2. insufficient heat dissipation when relying on the integral bypass valve).
There is an assumption in my query that there would be at least one radiator per circuit without TRV's fitted.