In my house, 1st floor is managed with electric radiators : there is a way to control Confort/eco mode but… it’s a kind of inversion with Velbus VMB1TS way of run :
As you see, no signal is confort, 220v is eco : if a connect 230v on VMB4RY, when T° is enough, VMBTS1 “heat” signal is 0, radiator would be in confort mode (VMB4RY is open).
If T° goes down, VMBTS1 heat signal is 1, then VMB4RY is closed… eco mode is coming…
The VMB4RY does not allow for inverting the contacts from NO (normally open) to NC (normally closed).
Its successor, the VMB4RYNO, can be set to NC in Velbuslink. (Caution: this is a software setting, not a hardware setting, so measures need to be taken to put the installation in the desired state after a power failure, this is explained in the Velbus installation guide Part 2, chapter 5, “In case of power loss”).
If you don’t want to buy a VMB4RYNO, a workaround might be to set the VMB1TS to cooler mode? It’s a bit weird and not very elegant, but it might work…?
that’s the two solutions I was thinking… the second is very hard because you can’t manage confort / eco mode.
As I’ve a VMB4RYNO of spare, I’ve made an exchange with VMB4RY.
But now, my problem is to configure VMB1TC and VMB1TS with VelbusLink :
I program 2 zones on VMB1TC (workdays and holidays) : only alternance with Confort (sun) and eco (moon)
I affect sensors to the desired zone
on VMB1TS, I configure desired temperatures for each mode (dialogbox with red and blue thermometer)
I associate heater with VMBRYNO relais (with N.O.)
I synchronize them with VelbusLink function
Is this process ok ?
What is the symbols legend when clicking on sun on VMB1TS module configuration (pilot VMB1TS thermometer symbol) : Moon (eco consign?), Yellow sun (confort consign?), Orange sun (day consign?), Ice ?
And what about locked in this dialogbox : does it means the button on physical module doesn’t affect the system ?
