Helios Fans VDD 710/6 T120

The Helios VDD 710/6 T120 is a robust roof fan designed for vertical air discharge, featuring an efficiency-optimized casing made of seawater-resistant aluminium. This model is engineered for continuous operation with air temperatures up to 120°C, making it ideal for conveying kitchen exhaust air in accordance with VDI 2052 standards.

Its construction includes a motor support and base plate made from galvanised steel with an integrated inlet cone. The base plate is fitted with threaded bolts for easy attachment of intake air accessories, following the DIN 24155 hole pattern (page 3). The outlet is protected by a bird guard that meets DIN EN ISO 13857 safety requirements.

Equipped with a high-efficiency backward curved centrifugal impeller made from aluminium, the fan is dynamically balanced to the DIN ISO 1940 – 1 standard for quiet, vibration-free operation.

Power is supplied by a speed-controllable, totally enclosed, three-phase external rotor motor with IP54 protection. The motor uses ball bearings with impregnated windings, ensuring maintenance-free performance and effective radio interference suppression. The motor is positioned outside the air flow to enhance durability under high-temperature conditions.