Commercial rooftop HVAC is an acronym for Heating, Ventilation, and Air Conditioning. It’s a system used in commercial buildings to provide heating, cooling, and air filtration services in order to keep occupants comfortable, healthy, and productive. Comprised of two main parts – a fan coil unit on the roof, and indoor ductwork and grilles – the system controls temperature, humidity, air quality, and ventilation indoors. With proper maintenance, commercial rooftop HVACHVAC systems can help reduce energy costs, improve indoor air quality and increase property value.