Answer:
HVAC stands for Heating, Ventilation and Air Conditioning. Many times you will see this term combined with refrigeration as well, i.e. HVACR.

HVAC (or HVACR) systems condition the air temperature, humidity, and air quality for the comfort of the people inside a building, or sometimes for equipment that generates heat.
First answer by ID3411172989. Last edit by Dgardner74. Contributor trust: 220 [recommend contributor recommended]. Question popularity: 14 [recommend question].