Tim’s Tech Tip: The Easy Way To Control A Cooling Tower Fan

Tim shows you how to use a Honeywell Variable Frequency Drive and a Honeywell T775 temperature controller to control a cooling tower fan.

Eric Stromquist

Eric Stromquist

Eric has been in the controls industry since 1979. His passion for controls and the desire to provide an easy way for HVAC professionals to keep up with the rapid changes in controls technology inspired him to create Controltrends.

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  1. Phil says

    Where you able to hook the relay of the controller straight up to the DI of the vfd. I thought that the VFD requires DC voltage and the relays on the controller are for 24 vac or 120vac


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