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Wallace Community College Health Education Building HVAC Renovations
Location: Dothan, Alabama
Client: Wallace Community College
Wallace Community College located in Dothan, Alabama had to close it Health Education Building due to uncontrollable mold problems associated with the building’s existing HVAC system. After Polyengineering personnel inspected the building, the HVAC system, and the original design plans for the building they recognized that the design strategy used with the old HVAC system in the building could lend itself to improper humidity control. Polyengineering personnel determined in lieu of multiple fan-coil units serving different zones of the building, the existing air-cooled chiller should be used in conjunction with one variable-volume chilled-water air handling unit to provide temperature and humidity control to multiple zones throughout the building. The new system entailed much larger ductwork than had originally been in place creating some interesting design problems relating to the ceiling plenum depth. The college also requested that the new system included a desiccant wheel in the air handler for enhanced humidity control. The air handler furnished was a custom designed desiccant wheel unit unique to this project. .