Hi,
I have bought a Viessmann 5104. Can I program this unit with a locomotive address and a F1-F4 (like address 78 and F1 for up and F2 for down)
I can do this with your Viessmann 5231 (they can be programmed with a loc. address and F1-F4)
Thanks for answering me.
Abe Wertheim