Pilot's Operating Handbook
Section 7
Description
Edition 0 - October 31, 2013
Rev. 6
Page 7.9.7
- cabin circuit, by passing through :
. the overhead duct equipped with swivelling and adjustable air outlets,
. ports located on the floor between the cabinets and the intermediate
passenger's seats.
System operation
See figure 7.9.3 and paragraph Air temperature management.
ECS control panel selection :
If the A/C switch is set to OFF :
>> Before GASC software evolution (Pre-MOD70-0689-21)
- Temperature is set by default by the GASC to 23°C,
>> After GASC software evolution (Post-MOD70-0689-21)
- The system maintains the cabin air inlet temperature previously selected. The
pilot can modulate this temperature by using the TEMP/°C selector on ECS
panel,
>> All
- Cockpit / Cabin evaporator fans are OFF,
- VCCS is inhibited.
If the A/C switch is set to AUTO :
- Temperature of each zone is controlled by the GASC, using inputs from both
TEMP/°C selectors and temperature sensors for reference,
- Fan speed is controlled by the GASC.
If the A/C switch is set to MANUAL :
- Each zone is controlled by its own control panel (depending on the CONTROL
selector position).
CONTROL selector positions :
- COCKPIT : controls located in the cabin zone are inhibited.
- CABIN : each zone is controlled by its own settings.
FAN SPEED selectors positions :
- OFF : prevents recirculation of cold air through the cold air circuit (VCCS).
- 1 - 4 : Cockpit / Cabin fan speeds are selectable.
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