Rosenberg
Rosenberg has expanded its E-Series line of high-efficiency rear-curved impellers with twelve new models ranging from 12 to 22 inches in diameter. This series is designed for high flow in high and medium pressure applications such as computer room air conditioners and air handling (CRAC/CRAH), energy recovery ventilation (ERV), energy recovery units (ERUs), ventilation boxes and ceiling fans.
The E-Series has aerodynamic blades made of polyamide reinforced with fiberglass. Its design allows to significantly increase energy efficiency, and reduce noise levels in operation compared to other fans with fans curved backwards.
The E-Series fan comes with EC (electronic switching) and external AC motor rotors and meets ErP 2015 requirements for energy efficiency. The size range includes 315 mm (12.4".), 355 mm (14".), 400 mm (15.75".), 450 mm (17.75".), 500 mm (20".) and 560 mm (22".) for both engine types. AC models offer airflow from 1,400 to 8,800 CFM. EC models provide an output of 1,900 to 8,000 CFM.
