www. refrigerationandaircon. co. za RACA Journal I November 2025 19
Events and Exhibitions
EC motors outrank AC premium efficiency( IE3) motors in the market, as can be seen in the graph below.
Though EC motors cost more upfront, their long-term savings and durability make them a smart investment, especially in commercial buildings, hospitals and data centres – where uptime and efficiency are paramount. With a Return On Investment( ROI) of below one and a half years, it really is a no brainer. Considering the cost of the additional functionality and protections built into the EC motors, the ROI can drop to below one year.
EC motors are just one part of a broader transformation. Modern ventilation systems are increasingly intelligent, integrating into IoT platforms and capable of autonomous performance optimisation. This is the frontier of Industry 4.0 applied to HVAC. to adjust airflow dynamically based on conditions like air quality, COâ‚‚ levels, occupancy or weather.
For example, in an office space with only partial occupancy, smart systems can reduce airflow automatically – cutting energy usage without compromising air quality. In manufacturing environments, fan systems can respond to airborne particulate levels or humidity, ensuring health and safety compliance in real time.
Supplied by ebm-papst
FANS THAT THINK Traditionally, ventilation fans were standalone components with fixed performance characteristics. But smart systems now use real-time sensors, cloud connectivity and artificial intelligence( AI) algorithms
www. refrigerationandaircon. co. za RACA Journal I November 2025 19