We got a call from a homeowner after his HVAC service company threw up their hands and said they could do no more to get the cooling system to work. They had recently replaced two failed compressors ...

Nelson Mechanical Design was asked to investigate an underperforming chilled water system at a large home overlooking the south coast of Martha’s Vineyard. The installing contractor had been let go ...

HVAC system designers are faced with unique challenges when attempting to design energy-efficient HVAC systems. Code-driven energy efficiency requirements, owner’s project requirements (OPR), the ...

Upgrading a chiller plant can be one of the most exciting projects for an engineer to work on, specifically when the plant needs to be kept fully operational during the construction process. Figure 1 ...