vrc720

Hi, I would like to upgrade my heating system (ecotec plus VMW 346/5-5 with a VRT370f thermostat) to be able to remotely control it. I was looking at installing a VRC720f thermostat with a VR921 box and several VR50 TRVs to be controlled with the Vaillant app. Before embarking in the full...

I've got Vaillant system with VRC470 control unit and control know is not responding. Since VRC470 is discontinued I am now considering replacin git with VRC720 Is a matter of simply removing VRC470 and disconnecting eBus and connecting VRC720 or much more complicated and professional installer...