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Rittal EC fan-and-filter units with speed control



Jun. 26, 2015 – Rittal says its fan-and-filter units with EC (electronically commutated) motors are the preferred choice for energy efficiency in enclosure climate control, as the operating ratio is significantly higher than standard AC fan-and-filter units. Using fan-and-filter units always makes sense, says Rittal, if the difference between the outdoor temperature and the internal enclosure temperature is large enough to dissipate the thermal output of the installed components. Further optimization potential exists with an advanced solution using fan-and-filter units with temperature-dependent speed control, says the company, adding that with a new sensor for controlling the speed, power consumption can be drastically reduced yet again. The sensor measures the temperature within the enclosure and controls the fan speed as needed, right up to independent shutdown at below 20 C, it notes.


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