What is the outcome of the PACK EMERGENCY position regarding the bleed valves?

The PACK EMERGENCY position is a specific mode in the Dassault Falcon 7X that directly affects the functionality of the aircraft's bleed air system. When the PACK EMERGENCY position is activated, the high-pressure (HP) bleed air valves for all three systems automatically close, resulting in a state where all HP valves are turned off. This is done to ensure the safety and manageability of the aircraft systems under emergency conditions, as limiting bleed air can help control cabin climate and pressure issues that may arise during abnormal operations.

In the context of the other answers, such as the high-pressure valves staying open or only one bleed system remaining operational, these scenarios do not align with the intended design and protocols of the PACK EMERGENCY setting. By deactivating the high-pressure bleed valves entirely, all bleed systems are effectively secured from potential overpressure or failure, thereby maintaining the integrity of the aircraft’s environmental controls during an emergency situation.