Airbus A 330/340 Environmental Control System

This paper describes the function and operation of the air conditioning packs and temperature control equipment within the Airbus A330/340 Environmental Control System. The ECS is used to pressurize, ventilate and temperize the passenger cabin and flight deck. The paper describes the thermodynamic process, the control modes for an optimized operation and the component monitoring. Component monitoring and special control for low pressure operation have been specifically developed and are given special attention.