Discuss Vaillant VR33 (with Nest) and VR66 in the Central Heating Forum area at PlumbersForums.net
I cannot send pics cos I have no vr66 but the vr33 is plug and play plugs into xr31 or xr32 depending on your boiler. The two OT wires from heat link go onto OT connections on vr33 and make sure 24volt connections in boiler have a link in. Also on the nest stat make sure you have enabled OT and not on/off switching.This is really interesting thread, are you able to post any pics of your nest wiring into the vr66 board and explain the process a bit further. Any information appreciated, I have a y plan system and I’m considering installing the vr33 board for better modulation with nest
Thanks for confirming I’m going to order the vr33I cannot send pics cos I have no vr66 but the vr33 is plug and play plugs into xr31 or xr32 depending on your boiler. The two OT wires from heat link go onto OT connections on vr33 and make sure 24volt connections in boiler have a link in. Also on the nest stat make sure you have enabled OT and not on/off switching.
I'm interested to find out where to order a VR33 from. I searched around and could not find any supplier here. They mostly come from NL but could only find one who had stock but they stopped shipping to the UK.Thanks for confirming I’m going to order the vr33
Mine was from a Dutch company but they don't have stock.I'm interested to find out where to order a VR33 from. I searched around and could not find any supplier here. They mostly come from NL but could only find one who had stock but they stopped shipping to the UK.
Thank you for your reply. I will keep on searching around.Mine was from a Dutch company but they don't have stock.
cvonderdelenhartog.nl has received VR33 supplies. I just ordered one unit.Thank you for your reply. I will keep on searching around.
That's where I got it from. Works greatcvonderdelenhartog.nl has received VR33 supplies. I just ordered one unit.
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