The aircraft has two similar engine bleed air systems. Each system is designed to:
A Bleed Monitoring Computer (BMC) controls and monitors each system. Each BMC receives information about bleed pressure and temperature and valve position and is connected with :
Each supplies indications and warnings to the ECAM and CFDS. If one BMC fails, the other one takes over most of the monitoring functions. Each bleed valve is pneumatically operated and controlled electrically by its associated BMC.