This is a temperature sensor control system that aims to recreate a household central air conditioning (heating/cooling) system.
The circuit operates by the user switching between three modes (Ambient, Set and Run) of operation via a push button and adjusting the temperature settings via a variable resistor (potentniometer).
Ambient = Ambient Temperature
Set = Set desired room/object temperature
Run = perform cooling or heating in order to obtain and maintain that specific set temperature.