heating, ventilation and air conditioning definition
heating, ventilation and air conditioning means heating, ventilation and air conditioning as defined in Division B, Part 6;
heating, ventilation and air conditioning or “HVAC” means the application of equipment and systems to provide air conditioning for occupants of buildings and structures. HVAC does not include the installation of portable self-contained refrigeration equipment and window-type air conditioners of not more than 1 ½ horsepower.