- High Efficiency & Low Noise: Backward curved 3D impellers and vibration-damped external rotor motor ensure optimal airflow at minimal sound.
- Speed-Controllable Motor: Motor supports variable speed control via voltage adjustments; compatible with frequency converters (requires all-pole sine filter).
- Durable & Coastal-Ready: Aluminum casing and galvanized steel base frame provide long-lasting performance in harsh environments.
- Thermal Protection: Motors up to size 311 include integrated thermal contacts; larger sizes feature external leads for motor protection device connection.
- Easy Maintenance & Reliable Operation: Maintenance-free design with high-performance composite impellers ensures continuous, dependable airflow.
The DHS 355DV Sileo Centrifugal Roof Fan is engineered for high air volume applications at medium pressure while maintaining exceptionally low noise levels. Featuring a horizontal discharge, this fan is equipped with a 3D profiled impeller with backward curved blades and an external rotor motor, providing excellent efficiency and reliable performance. The motor is fully speed-controllable, with integral thermal protection for safety. Its durable casing is made of aluminum, and the base frame is constructed from galvanized steel, making it suitable for coastal environments. The fan is vibration-damped, maintenance-free, and designed with high-performance composite impellers for maximum airflow and minimal sound, making it ideal for commercial and industrial ventilation.
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