The valve features an Open-window function, which closes the valve if the room temperature is falling dramatically, thus reducing the heat loss. The heat is turned off in the entire room for up to 30 minutes, before the valve returns to its original settings. When Open-window has been activated, the function is quarantined for 45 minutes. Note! Be aware that the Open-window function will be affected, if curtains or furniture is covering the valve thus preventing it from detecting the decreasing temperature. The Open-window feature is activated at temperature decrease of approx. 0.5 °C over 3 min.
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