I have a Vaillant ecoTEC plus 637 system boiler, a uniSTOR unvented cylinder, a VRC 430 weather compensator & thermostat all connected through a Vaillant VR 65 control centre.
I've just had underfloor heating installed in a new extension and I want this connecting to the existing system such that it is on a separate zone with its own thermostat. The plumber isn't familiar with Vaillant control centres, so I'm trying to gather information for him (and so I understand what he needs to do, to ensure it is done correctly).
From what I can gather, the VR 65 control centre can only handle a single independant heating zone as well as the hot water control.
The VR 61/3 appears to handle two heating zones as well as hot water, but I'm not sure what the difference is between the VR 61 and VR 65 and I'm struggling to find documentation on the Vaillant website.
Can somebody please advise what needs to be done to add a 2nd heating zone to my setup, ideally making use of weather compensation (a 2nd heating curve?).
I've just had underfloor heating installed in a new extension and I want this connecting to the existing system such that it is on a separate zone with its own thermostat. The plumber isn't familiar with Vaillant control centres, so I'm trying to gather information for him (and so I understand what he needs to do, to ensure it is done correctly).
From what I can gather, the VR 65 control centre can only handle a single independant heating zone as well as the hot water control.
The VR 61/3 appears to handle two heating zones as well as hot water, but I'm not sure what the difference is between the VR 61 and VR 65 and I'm struggling to find documentation on the Vaillant website.
Can somebody please advise what needs to be done to add a 2nd heating zone to my setup, ideally making use of weather compensation (a 2nd heating curve?).