Hello all,
I control a Mechanical Ventilation Heat Recovery (MVHR) in my house with Shelly. I created a scene. If the temperature of the air blown into the heat exchanger is less than 6 degrees, and the fresh air drawn in from outside is less than 5 degrees, then the defrost valve should open. The valves do not see the end positions, so if the two temperatures are constantly below the set values, then it continuously tries to open the valve even if it is already fully opened. How can I eliminate this? I thought about that one after another 5 openings waiting for it to a close command and then opening it again. Is this possible to set this? Or does anyone have another idea? A similar scene has been created for closing.
Devices: 2 pcs Shelly Plus 0-10V Dimmer, 2 pcs Shelly Plus 2 PM
Valves: Belimo CM230-L