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  1. Grendil

    RTAA Sound Attenuation

    I have used the Wrap, it works ok. What DB reading were you getting it will definately help but prob not to there liking. build a structure.
  2. 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...
  3. Grendil

    Water cooled condenser scale removal

    Use a product called Rydelyme. Real effective
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