The Helios Fans ITEC 315 offers dependable twin fan operation with full standby capacity to guarantee continuous airflow in duct systems. Its galvanized steel casing provides strong corrosion resistance, suitable for demanding ventilation environments. Designed for ease of maintenance, the unit features access panels that can be positioned at the top or bottom. Standard change-over panels with a duty-sharing option allow balanced fan operation and simple wiring through a shared terminal box. The acoustically lined casing minimizes noise and reduces sound breakout, ensuring quieter performance. Installation is simplified with standard side mounting rails, while speed control is enabled via the Helios ACSW EC change-over panel and PA10 potentiometer controller, delivering an energy-efficient solution tailored to various ventilation needs.