Passenger cabin temperature rotating knobs:
● Controls cockpit and cabin temperature according to the knob position.
Cross-bleed button:
● Push IN: allows automatic operation by the AMS. This position commands the cross-bleed valve,
according to the system logic.
● Push OUT: manually closes all cross-bleed valves.
Bleed air valve buttons:
● Push IN: allows automatic operation by the AMS. This position commands the engines’ bleed
valves, according to the system logic.
● Push OUT: manually closes the engine bleed valve.
APU bleed button:
● Push IN: allows automatic operation by the AMS. This position commands the APU bleed valve,
according to the system logic.
● Push OUT: manually closes the APU bleed valve.
3.4.10 PRESSURIZATION
The pressurization of the cabin is automatic and can’t be
controlled by the user.
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