HVAC - which stands for Heating, ventilation and air conditioning.

CADD SCHOOL is the best autocad electrical training centre in Chennai, India. CADD SCHOOL providing industrial based training also individual classes by well trained faculty at caddschool ,with placements in Chennai, India. HVAC is an important part of residential structures such as single family homes, apartment buildings, hotels and senior living facilities, medium to large industrial and office buildings and hospitals, where safe and healthy building conditions are regulated with respect to temperature and humidity, using fresh air from outdoors.