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  1. 11t

    Controlling HHW HX to delta T

    Hey everybody, I got an interesting situation right now. I have a HHW system that is solely used on a pretty large dual duct dual fan AH. Because of this, the HD valve is locked @ 100% and we are doing all of our temperature control at the HX. The HHW VFD is controlled to a deltaP of 10 psi...

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