The HAVC system works by heating or cooling the air depending on the desired temperature. The system circulates air from an indoor unit to an outdoor unit via ductwork and includes a filter system that removes any pollutants. The air is then circulated back indoors, providing clean and fresh air to occupants.

The HAVC system uses a refrigerant gas that passes through a compressor, causing the gas to heat up. This heat is then released, causing the refrigerant gas to cool back down. The cool gas is then sent back into the indoor unit where it is used to reduce the temperature of the air.

In addition to cooling or heating the air, the HAVC system also controls humidity levels, reducing the moisture in the air to prevent the growth of mold and mildew. Overall, the HAVC system is a complex system that employs various subsystems to maintain a comfortable and healthy indoor environment.