RadiCal centrifugal fans with backward-curved blades are the new standard in ventilation and air-conditioning. RadiCal features include both noise minimisation and a further decrease in energy consumption. The RadiCal impeller with backward-curved blades is made of fibreglass-reinforced plastic, enabling an aerodynamically optimised shape that cuts the noise level in half and reduces power requirements significantly.
The impellers are produced from a special composite material, in a single piece without joints. This makes a high circumferential speed possible, so the fan has a high power density.
Even without special varnish, the impellers are highly corrosion-resistant, for example if exposed to salt water or salty air. Direct solar radiation has no damaging effects on the UV-resistant material.
The motors in RadiCal low-pressure centrifugal fans have been miniaturised and are much more compact than their predecessors. With the current dimensions, easy and trouble-free replacement of existing AC solutions is possible at any time.
The motor's heat management system also has an optimised design. The stator is completely encapsulated in high-performance plastic. Air inlets in the rotor guarantee perfect heat dissipation for the motor, resulting in a further considerable increase in efficiency. The high level of IP protection permits the use of these fans even in critical applications.
The RadiCal with GreenTech EC motor features continuous control with a 0-10 V or PWM input signal. Versions with two fixed speed levels are available up to size 250 mm, with the higher speed providing a power reserve in comparison with the AC version. From size 250 mm, control via an RS-485 interface using the MODBUS RTU protocol is also possible.
Ebm-papst Middle East FZE
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