The American Society of Heating, Refrigeration, and Air Conditioning Engineers (ASHRAE), in conjunction with the American National Standards Institute (ANSI) and the Air Conditioning Contractors of America (ACCA) have adopted ASHRAE/ACCA/ANSI Standard 180-2012, “Standard Practice for Inspection and Maintenance of Commercial Building HVAC Systems”. Most building maintenance is reactive. This practice leads to risks such as wasted energy, occupant discomfort, …