Discuss Vaillant VR33 (with Nest) and VR66 in the Central Heating Forum area at PlumbersForums.net
Just doing this today. Just checking nothing connects the boiler to the vr66?
Are the nests connected to it?
Thank you for the info. I'll be in touch when I am ready to set it all up. I will be getting my old Potterton Supriema replaced with a Ecofit Pure 415 and my aim is to configure an identical setup like what you have managed to do with a VR10 NTC to keep the HW Cylinder topped up when the storage water temp drops below a set threshold. I have a single 3-port valve (s-plan) and just need to figure out which wires I need to connect to the VR66. If you have a pic as you know the saying goes. it will speak louder than words.
I’ve just completed this install . Run a new 2 core cable from boiler to nest heatlink. Install vr33 believe it connects into x32 port . Connect the new wire to vr33 and nest heatlink, remove old thermostat. Setup nest as open thermHi All, can anybody advise what is the correct set-up for SYSTEM Vaillant boilers?
Currently I have the boiler with a junction box for the valves and water cylinder and a classic room thermostat (Salus, On/Off type).
I have the vr33 module as well as a tado unit. Where do I go from there? Do I simply remove the old thermostat, plug the the vr33 on the PCB, and wire tado to the 2-pin connector of the vr33?
Or instead, does the vr33 need to be connected to the junction box somehow?
Thanks
Reply to Vaillant VR33 (with Nest) and VR66 in the Central Heating Forum area at PlumbersForums.net
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