QE EL electric box is a framework that manages up to 8 devices, divided into two groups of four, and allows them opening and closing for daily ventilation.
In combination with optional GUARDIAN™ weather detector unit and its sensor, QE EL electric box automatically closes open devices in case of adverse weather conditions.
Automatic re-closing is stopped if fire emergency signal is active.
Operation is guaranteed even in the event of 230V mains absence, thanks to a backup battery. In that case manual opening for daily ventilation is inhibited, while the emergency opening is always active.
230V mains absence is signalled by a cyclic acoustic signal, which become continuous when the battery is low.
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