Helios Fans GBD EC 710 B

The Helios GBD EC 710 B is a cubic ventilation unit designed to save energy while efficiently managing intake and extract airflows. It comes equipped with flexible sleeve connectors to minimize vibration transfer and features adaptable side panels to accommodate different installation requirements. The unit is easily positioned using standard crane hooks.

Its robust enclosure consists of a self-supporting frame made from aluminium hollow sections, complemented by double-walled side panels that are 20 mm thick and manufactured from galvanized sheet steel. The panels are lined with non-combustible mineral wool for effective sound and thermal insulation. These enclosure panels can be replaced or enhanced with optional accessories such as weather louvres and condensate trays. Additional fittings like wall brackets and weather protection roofs can be installed inside or outside as necessary.

The airflow is generated by a direct-driven, free-running backward-curved centrifugal impeller made from aluminium. This design ensures energy efficiency and low noise operation. The impeller and motor assembly is dynamically balanced in accordance with DIN ISO 1940 Pt.1 – class 6.3, providing smooth and reliable performance.

The unit is powered by an energy-efficient EC external rotor motor with IP54 protection and maximum efficiency. The motor is maintenance-free, ball bearing mounted, and resistant to interference. Integrated electronic temperature monitoring protects the motor and electronics. A built-in internal potentiometer enables setting the fan speed between minimum and maximum limits. Additionally, stepless speed control is possible via an external potentiometer or the EUR-EC universal control system. Electrical connections are made through a standard IP54 terminal box with cable entry.