What does the ECO function do on the Ambra Remote Controller?
In COOL mode, pressing the ECO button adjusts the temperature automatically to 24°C/75°F and sets fan speed to Auto to save energy (only when set temperature is less than 24°C/75°F). This function is available only in COOL mode. Press ECO again to stop the function.
From the official Ferroli Ambra Remote Controller manual, page 12
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