HVAC is the system covered under mechanical engineering. This is an integral part of the mechanical engineering syllabus as well as a job description. It is also very important for people who are learning or have learned thermal engineering or thermodynamics. It is also most important for those who are learning or practicing heat & mass transfer & fluid mechanics.
One can learn the HVAC concept during their course-ship & can gain positions in the corporate world as HVAC Design Engineer, HVAC site engineering/supervisor, HVAC quantity surveyor, HVAC Design Manager, HVAC Draftsman & many more.
It is worth to learn the concept of HVAC, especially for the engineers. The HVAC is included in Refrigeration, CAD, Machine Design & many more. This will not only boost up your experience but also benefit you for promotions.