What is the function of supply air in an HVAC system?

The function of supply air in an HVAC system primarily involves the delivery of conditioned air, which can be cool or heated, from the system to the home. This process is crucial for maintaining a comfortable indoor environment. When the HVAC system operates, it conditions the air to reach the desired temperature set by the thermostat. The supply air ducts then distribute this air throughout the various spaces in the building, ensuring every room receives the appropriate amount of air needed for comfort.

While options discussing the removal of hot air or air circulation touch on elements of HVAC function, they don't specifically address the key role of supply air. Filtering dust and debris is an important part of HVAC systems as well, typically involving air filters and not the primary function of supply air itself. Therefore, delivering cool air from the system to the home accurately represents the essential role of supply air in temperature regulation and overall comfort maintenance.