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  • Users: axel2004
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  1. axel2004

    NFPA and pipes material

    Looking for information related of which NFPA code permit or not-permit the use of PVC and CPVC pipes in HVAC applications (chilled water, ahu drains, condensated water, other). International Plumbing Code permit the use of PVC in HVAC applications, but and not sure about NFPA. regards
  2. axel2004

    Cooling tower information

    looking for information (weight) of old fashion Marley cooling tower NCW 8707. made of wood and asbesto. regards
  3. axel2004

    Old chiller

    Looking for information (literature, operation and service) of old fashion chiller Trane model CG 125 C. regards
  4. axel2004

    AHU configuration

    Looking for information related to correct AHU configuration for multi-zone purpose using VFD and zone dampers. blow-thru and draw-thru??? I search books and internet and the information is not clear. some times indicated BT other DT. I feel the only difference its related to sensible rise and...

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