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繁體中文ebm-papst's Smart Fan Innovations
09/28/2025Fans serve as the core component of efficient residential ventilation systems. Their primary function is to facilitate air exchange while striving for efficient, powerful, and low-noise operation. For specific application scenarios in residential ventilation, ebm-papst offers tailored product solutions.
In a centralized residential ventilation system, a single unit controls the supply and exhaust of air through the ductwork in relevant rooms of the residence. The advantages of a centralized unit are twofold: it enables effective heat recovery and air filtration, and its centralized control system allows for uniform regulation of air distribution throughout the entire building, along with overall optimization.
The Second-Generation High-Efficiency Fan: RadiCal 2
Over the past decade, the RadiCal fan has proven its reliability in centralized residential ventilation units. Now, its second-generation model, RadiCal 2, has achieved remarkable performance in noise reduction and operational efficiency. The fan incorporates multiple aerodynamic optimizations, such as an innovative "twisted" blade design, while the fan housing has been fully redesigned with diagonally arranged support structures.
Taking the size 190 model as an example, compared to its predecessor, RadiCal 2 boasts a 9% increase in peak efficiency. Additionally, the maximum air flow rate of models across all sizes has been significantly enhanced. In terms of noise control, RadiCal 2 also delivers substantial improvements—depending on the operating condition, its noise level can be reduced by up to 3 dB(A). Furthermore, thanks to the new FlowGrid air flow optimization structure and the upgraded EC (Electronically Commutated) motor, the fan can provide additional noise reduction benefits for the ventilation unit.
RadiCal Fan in Scroll Housing with Smart Features
The RadiCal fan equipped with a scroll housing continues to set new benchmarks in ventilation technology. For users, there is no need for additional duct design, as the fan’s round air outlet can be directly connected to the ductwork of the ventilation unit. The vane anemometer installed at the air outlet of the scroll housing enables automatic control to maintain a stable air flow—a feature that makes it highly suitable for smart ventilation scenarios, meeting the preset air exchange requirements in living spaces. Currently, this type of vane anemometer is also available in four different sizes as standalone sensor versions, suitable for installation in various ventilation systems.
With its built-in vane anemometer, the RadiCal fan in scroll housing not only delivers powerful air supply performance but also functions as an intelligent sensor. When paired with a compatible control system and software, it can accurately monitor the contamination level of filters in the residential ventilation system and issue timely replacement alerts. This function not only ensures indoor air quality but also further taps into energy-saving potential, while avoiding the costs associated with installing additional pressure sensors.
Compared to centrifugal blowers of the same type, the RadiCal fan in scroll housing offers 34% higher efficiency and reduces noise by up to 3.5 dB(A). Moreover, the fan is integrated with temperature and humidity sensors—a design that makes it particularly well-suited for residential ventilation systems and represents a significant step toward achieving measurable indoor air quality monitoring.
