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  • Users: Grendil
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  1. Grendil

    VFD Controls

    I have 2 AHU's common Duct.With 2 Split Condensing Units. 60 Ton Each DX. pnumatically controlled fan inlet dampers 25 HP Supply and 10HP Return fans. Looking to install VFD drives on both fans. Concerned with CFM at different % cooling and fans working at different speeds. They are older units...

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