Prime Datum Industries Served
Cooling Towers
  True Variable Speed Operation

 

 

Weather is constantly changing and so probably is your thermal load. Therefore, the best way to efficiently meet your thermal demand and maintain a constant basin temperature in a constantly changing environment is with the variable speed Zephyr Integrated Drive System™.

The patented Zephyr Integrated Drive System is variable speed by design. Unlike an induction motor the Zephyr is inherently variable speed with demonstrated energy savings of 45%. The Zephyr also provides expanded operation in temperature extremes eliminating hot day bottlenecks and the continuous “jogging” required by the fan gearbox and motor to de-ice the tower.

By design the Zephyr is not limited in reverse and can freely windmill when not in use thus saving energy. In the video to the left the fan is freely windmilling in reverse. Upon cooling demand, the Zephyr system brings the fan to zero RPM and provides a flying start in the forward direction to 100% RPM. With the Zephyr System the across the line starts and their frequent failures have been eliminated.

 

 


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