What is the main function of a thermostat in an HVAC system?

The main function of a thermostat in an HVAC system is to regulate the temperature of the environment. It acts as a control device that monitors the ambient temperature and compares it with a setpoint that a user defines. When the ambient temperature deviates from this setpoint, the thermostat signals the HVAC system to either heat or cool the space to maintain the desired temperature.

This regulation is crucial for providing comfort in residential and commercial settings, ensuring that indoor temperatures remain consistent regardless of external factors. By efficiently managing the heating and cooling processes, a thermostat contributes to energy savings and enhances overall system performance.