What is the minimum recommended fan speed for an open cooling tower?

EVAPCO recommends a minimum fan speed of 25% for each available open cooling tower. Operating below 25% of motor speed achieves very little return in fan energy savings and capacity control. This recommend also applies to closed circuit coolers and evaporative condensers. If you have additional questions about the operation of your cooling tower, please contact your local EVAPCO sales representative.

 

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