What is the role of a thermostat in an HVAC system?

The role of a thermostat in an HVAC system is to regulate temperature by controlling the heating and cooling systems. It serves as the interface between the user and the HVAC system, allowing individuals to set their desired indoor temperature. When the ambient temperature deviates from the setpoint, the thermostat detects this change and sends signals to the HVAC equipment. For example, if the temperature is too low, the thermostat will activate the heating system, and conversely, if it is too high, it will initiate cooling.

This function is crucial for maintaining comfort within the living or working environment, ensuring that the space remains at a consistent and comfortable temperature. While some HVAC systems may include integrated humidity management features or be sensitive to outside temperature readings, the primary and most direct role of a thermostat is focused on temperature regulation.