Yep, and this is why central control, along with temperature sensors make a giant lot of sense to prevent such situation. A simple thermostat is not enough, an

Yep, and this is why central control, along with temperature sensors make a giant lot of sense to prevent such situation. A simple thermostat is not enough, and even a PID one will not do the job if external thermal influx is not in the model. I once worked on a HVAC controller for hotels in Singapore, and other commercial venues which helped the hotel operator to save on HVAC by packing visitors more closely depending on occupancy. This avoid paradoxical situations of it being chilling cold in some suites with zero aircon use when it is +30 outside because of an unlucky combination of HVAC settings in neighbouring suites.