Helios Fans VDD 500/6 T120

The Helios VDD 500/6 T120 is a high-performance centrifugal roof fan built for vertical air discharge in applications where sustained high-temperature airflow is required. Designed to handle continuous air temperatures up to 120°C, this model is particularly well-suited for kitchen exhaust ventilation in compliance with VDI 2052.

Its corrosion-resistant, seawater-grade aluminium housing integrates a protective guard for added safety and durability. The motor support and base plate are constructed from galvanized steel, and the base includes an aluminium inlet cone for optimized airflow. Threaded bolts on the base plate allow for secure attachment of intake-side accessories, adhering to the DIN 24155 hole pattern (page 3). A standard bird guard is included on the discharge side, compliant with DIN EN ISO 13857.

The unit features a backward-curved centrifugal impeller made from aluminium, dynamically balanced to DIN ISO 1940 – 1 standards to ensure smooth, low-vibration operation.

Driving the fan is a speed-controllable, totally enclosed three-phase external rotor motor with IP 54 protection. The motor includes ball bearings with impregnated windings for reliable, maintenance-free operation and is radio interference suppressed. The VDD 500/6 T120 is an efficient and dependable solution for high-temperature exhaust and ventilation demands.