Pilot's Operating Handbook
Section 7
Description
Edition 1 - January 15, 2018
Rev. 5
Page 7.9.1
7.9 - Air conditioning and pressurization
● NOTE ●
A l
ist of abbreviations used in this chapter is given in figure 7.9.2.
●
The airplane is equipped with a Global Air System (GAS), which ensures air
conditioning and pressurization control - see figure 7.9.2.
- Air conditioning corresponds to the cockpit / cabin air temperature
management.
- Pressurization corresponds to the cabin altitude / rate of change
management.
The GAS is composed of 3 sub-systems :
- engine bleed air system,
- cabin pressurization control system,
- dual-zone Environmental Control System, which includes heating and cooling
functions.
These sub-systems are managed by a single digital controller, the GASC, which
receives information from :
- the sensors within the sub-systems,
- the human interfaces integrated in the airplane.
The GASC sends commands to the sub-systems actuators and indication or warning
elements.
GAS controls are located on :
- the A/C panel on the left side of the left control wheel,
- the PRESSURIZATION panel on the right side of the left control wheel,
- a control panel above the armrest of the left-side passenger seat.
The pilot monitors the system through information and CAS messages displayed on
the MFD. These indications are independent of the GASC controls and internal
sensors.
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