My system comprises ectotec plus 937 combi boiler, VRC 430 weather compensator with a VRC 693 sensor.
I wish to add a second heating zone.
Can I implement this by adding a motorized valve for each heating zone and controlling them by adding a VR 61 mixer module and VR 81 room temperature controller?
My VRC is located in heating zone 1 and I would locate the VR 81 in heating zone 2
The vaillant engineer told me to use a VR 65 and not the VR 61. But the VRC 430 instruction manual indicates it should be the VR 61
I wish to add a second heating zone.
Can I implement this by adding a motorized valve for each heating zone and controlling them by adding a VR 61 mixer module and VR 81 room temperature controller?
My VRC is located in heating zone 1 and I would locate the VR 81 in heating zone 2
The vaillant engineer told me to use a VR 65 and not the VR 61. But the VRC 430 instruction manual indicates it should be the VR 61