Helios Fans GBW EC 355 T120

The Helios GBW EC 355 T120 is a robust cubic exhaust unit designed specifically for demanding ventilation applications such as commercial kitchens and industrial process systems where hot, dirty air extraction is required. This model supports temperatures up to 120°C thanks to its motor placement outside the airflow and durable components.

It features supply and extract low-loss duct adapters equipped with flexible sleeves that significantly reduce vibration transmission. The unit’s variable side panels allow adaptation to various structural setups, ensuring flexible installation options. A condensate collector with an enclosed discharge system comes standard to manage moisture effectively.

The enclosure frame is self-supporting and constructed from aluminium hollow sections. The double-walled side panels are made from galvanised sheet steel, 20 mm thick, and lined with non-combustible mineral wool for excellent sound and thermal insulation. These panels are replaceable and compatible with various accessories, including weather louvres and condensate trays. Wall brackets and weather protection roofs can be installed both inside and outside to suit installation needs.

The exhaust unit incorporates a free-running, backward curved centrifugal impeller crafted from aluminium and directly driven for optimal energy efficiency and quiet operation. The impeller and motor assembly are dynamically balanced to meet DIN ISO 1940 Pt.1 class 6.3 standards, minimizing vibrations.

Powering the fan is an energy-saving, enclosed EC internal rotor motor positioned outside the air stream to protect it from heat and contaminants. This motor offers maximum efficiency, protection class IP54, and is maintenance-free with interference resistance and ball bearing mounting. Integrated electronic temperature monitoring safeguards the motor and electronic components.

Speed control is flexible, featuring a standard internal potentiometer for fine-tuning control voltage and fan speed. Additionally, stepless speed adjustment is available through an external potentiometer or the universal EUR-EC control system. Electrical mains supply and control signal connections are made directly within the unit’s EC controller.

The Helios GBW EC 355 T120 delivers reliable, energy-efficient ventilation tailored to high-temperature environments, making it a dependable choice for commercial and industrial applications requiring robust and quiet exhaust solutions.