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  • Users: Cry24
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  1. Cry24

    Pumps with Built-in VFD's

    Hi all Does anyone have experience with pumps with built-in VFD's? I suspect a few draw-backs in specifying these. 1. How does the pump react to pressure? does it have built-in PD or is PD provided by others near the pump? can it read multiple PD's far away? ASHRAE 90.1 require remote PD's, not...

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