Which of the following is a primary function of the HVAC system?

The primary function of an HVAC (Heating, Ventilation, and Air Conditioning) system is temperature control. This system is designed to maintain comfortable temperatures within a sport facility by regulating heating and cooling. It helps ensure that the environment is suitable for both athletes during competitions and spectators during events. This involves not just heating or cooling the air, but also managing humidity levels to create a stable and pleasant atmosphere.

In contrast, lighting control primarily involves the management of illumination levels and fixtures within a facility, which is outside the scope of HVAC systems. Sound insulation pertains to the reduction of unwanted sound, which falls under acoustic design rather than HVAC functions. Finally, playing surface maintenance relates to the upkeep of surfaces like fields or courts, which is managed through different systems and practices unrelated to HVAC.