ABB/Thomas & Betts – Medium Voltage Recloser (MVR) Building HVAC

ABB/Thomas & Betts – Medium Voltage Recloser (MVR) Building HVAC

Our firm was retained to design an HVAC system for the MVR fabrication and assembly building at ABB’s plant in Hackettstown, NJ. This was a complete renovation of the existing product assembly and shipping/receiving building, a pre-engineered metal building built in 1973. The heating system was the only controlled environmental resource with minimal ventilation.

The building envelope insulation had to be upgraded to comply with current energy codes. Assembly process temperature and tight humidity control were required. In addition, a significant heat rejection from large rubber molding presses posed a design challenge. The design included a 120 ton, 40,000 CFM hot-gas reheat packaged HVAC unit with electric heat and steam humidifier to provide seamless operation during the winter season.