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    Fans Filters TopTherm EC Technology

    TopTherm filter fan units equipped with EC (electronically commutated) technology offer higher performance against static pressure, offering more constant air throughput and energy savings than previous models. Fan speed is monitored directly via a tacho-signal output to alert maintenance personnel of fan malfunctions, allowing faster response and minimizing the risk of component failure in the enclosure. Infinitely variable speed control allows conserving energy by operating the fan at a speed proportional to the demand for cooling. A programmable logic controller (PLC) may be used to control the fan motor via a 0-10V DC or pulse width modulated (PWM) signal.

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