What does "HVAC" mean?

The main functions of HVAC include: heating, ventilation and air conditioning, referred to as HVAC (heating, ventilation and air conditioning). Take the comprehensive abbreviation of these three functions, which is HVAC.

Heating, ventilation and air conditioning (HVAC) refers to the system or related equipment that is responsible for heating, ventilation and air conditioning indoors or in cars. The design of HVAC system applies thermodynamics, fluid mechanics and fluid machinery, which is an important branch of mechanical engineering.

Sometimes R is added to the abbreviation HVAC, which means refrigeration, and the abbreviation becomes HVAC &；; R or HVACR, or add R to the abbreviation and subtract V representing ventilation, and the abbreviation becomes HACR.

HVAC system can control air temperature and humidity, improve indoor comfort, and is an important part of medium and large industrial buildings or office buildings (such as skyscrapers).