Wall mounted thermostats work by regulating the room’s temperature. Wall mounted thermostats use a sensor that constantly measures the temperature of the room. When the room’s temperature doesn’t match the user set temperature, the thermostat completes a circuit to activate the HVAC (Heating Ventilation and Air Conditioning) system. The HVAC will run until the desired temperature is reached.
*Disclaimer: HomElectrical advises against DIY installations unless a licensed professional.