What is HVAC?
HVAC is an acronym that stands for Heating, Ventilation and Air Conditioning. Engineers normally design these systems together because their operation is closely related. For example, once the indoor air supply is heated or cooled to an adequate temperature, the ventilation system distributes it throughout indoor spaces. In turn, the operation of air-handling systems influences the load on heating and cooling equipment.
https://www.ny-engineers.com/m....ep-engineering-servi