ECFanGrid: The Smart Solution for New AHU Installations

Powered by energy-efficient EC Motors, Rosenberg’s ECFanGrid provides a compact and modular solution for HVAC retrofit and new Air Handling Unit (AHU) installations. Compared to traditional single large blowers, the ECFanGrid system can reduce required space by up to 50%, offering a flexible setup tailored to your specific needs—whether it’s a 1x3, 2x2, 2x3, or 3x3 configuration. Our multi-fan systems ensure uniform airflow distribution, enhancing the performance of downstream components like coils and filters. Additionally, using multiple fans instead of a single blower produces higher frequency sound levels, allowing for smaller attenuators and more efficient airflow management.

Rosenberg's ECFanGrid Retrofit Kit is the ideal solution for upgrading your HVAC system. This all-in-one kit provides everything necessary for a smooth and efficient retrofit, improving system performance and energy savings. Simply provide us with your Airflow, Static Pressure, and Cabinet dimensions, and our team will customize the perfect kit for your needs. The ECFanGrid Retrofit Kit includes: • High-efficiency EC plug fans with external rotor motors • Top and bottom sheet metal filler panels (if required) • Adjustable support frame and posts • Inlet cones with pressure taps for accurate airflow measurement • Prewired electrical cabinet for easy power and control connections • All essential nuts, bolts, and fasteners • Step-by-step installation manual for quick setup

The Unobox is a self-contained EC fan system featuring a backward curved impeller mounted inside a durable and insulated box. Designed by Rosenberg for modular HVAC systems, the Unobox is ideal as a stand-alone unit or when replacing outdated casings. Its robust extruded aluminum frame is complemented by thermally and sound-insulated galvanized steel panels, ensuring efficient performance and quiet operation. Powered by Rosenberg’s energy-efficient and easy-to-control EC motors (ECM), the Unobox can be stacked in any configuration, offering flexible solutions for your HVAC needs.
Simple, reliable, and ready to use – Plug and Play.