What is the role of the APU's control unit?

The role of the APU's control unit is to manage operation, monitoring, and safety features of the Auxiliary Power Unit (APU). This ensures that the APU functions effectively and safely while providing electrical power and bleed air during ground operations and in-flight as needed. The control unit continuously monitors various parameters, such as temperature, pressure, and operational status, allowing for optimal performance and safe operation. It can also initiate safety protocols in case of any detected anomalies or failures, ensuring that the APU operates within its prescribed limits.

In contrast, managing in-flight entertainment systems, regulating fuel supply to the engines, or controlling landing gear functions are not functions associated with the APU's control unit, as these tasks pertain to different aircraft systems and components.