Systemair DHS DS Roof Ventilation Fan with 3-Phase AC Motor Type_Roof Cowl Flexible Installation: Can be mounted

Flexible Installation: Can be mounted at angles of up to 30°

A simple way to make quick-release worm-drive hose clips to bespoke lengths also securely fixes flexible hoses to fan spigots

EMI EC series fans are ideal for ventilating workplaces

Each impeller is precision die-cast from aluminium and X-ray inspected using real-time radiography (ASTM E-155) to ensure structural integrity and consistent quality

Systemair DHS DS Roof Ventilation Fan with 3-Phase AC Motor Type_Roof Cowl Flexible Installation: Can be mountedExperience the Power of DHS Roof Fans! Designed for optimal performance, our DHS models feature speed controllable motors with integral thermal contacts, ensuring reliable and maintenance free operation. Enjoy a low sound level while benefiting from the efficiency of backward curved blades and external rotor motors. For precise speed control, use with a frequency converter equipped with an all pole sine filter.