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Boxes used for autonomous regulation of supply and exhaust air to the ventilated space in central ventilation systems.
The galvanized box with removable inspection cover houses two flow controllers for supply and extract air to the ventilated space. For connection to the circular ductwork, the box is equipped with four circular throats which are fitted with a lip seal. The control actuators are equipped with a thermo-anemometric air flow sensor.
The air flow through the box can be controlled by a 0...10 V analogue signal from the remote control or by an external sensor. The box is equipped with a 230 V / 24 V power supply unit with a connection cable terminated with a 230 V plug.