Over the past several years, I’ve worked in several high-rise condominiums that utilize a makeup air unit (MAU) that conditions 100% outdoor air to a neutral dry bulb temperature (~70°F) and suitable ...

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 ...

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 ...