HVAC stands for Heating Ventilation and Air Conditioning is a technology of indoor and vehicular environmental comfort. The main goal of an HVAC System is to provide thermal comfort and acceptable indoor air quality. HVAC system design is done by usually Mechanical engineers were it based on the principle of Thermodynamics, Fluid Mechanics and Heat Transfer .A candidate pursuing the course in this design field would be able to have a very good lucrative career in this area.