S Plan schematic for a system boiler 2 zone mixed/unmixed with DHW

[0ldskoolskater]

Hi All,

I've been trying to find a Vaillant (modulating) schematic for a sealed system boiler that details 1 unmixed radiator, 1 mixed UFH, and DHW but have come up short, so I have created a hybrid schematic (ignore the numbering) on which I'd would welcome your thoughts as to whether it would work.

I'd be looking at using new components connecting to an ecotec 428 plus:
VRC 720
VR 92
VR 71

System boiler with 1 unmixed radiator circuit and 1 mixed UFH circuit - DHW prioritised

• 0ldskoolskater
• 20 Apr 2023

Would this work?

Thanks