Anti Ice Control, Window Heat &
Cabin Press Panel

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Anti Ice Control & Cabin Press Panel Ditching Switch ( Guarded ) LDG ELEV Selector Mode SEL Switch MAN V/S CTL Switch Probe/Window Heat ENG 1/2 Anit Ice Wing Anti Ice Switch

Anti Ice
Wing  
Controls Wing Anti Ice system simultaneously on both Wings.
  • ON
    • "ON" light illuminates
    • "WING A. ICE" message appear on ECAM MEMO display
    • Wing Anti Ice valves open provided pneumatic supply is available. On the ground, the valves open for 30 seconds only
  • OFF
    • "ON" light goes OFF
    • Wing Anti Ice valves close
  • Fault Light - Illuminates when either of the following occur:
    • Wing Anti Ice valve position disagrees with selected position.
    • Low pressure is detected.
ENG 1 / 2  
Controls the respective engine anti-ice system.
  • ON
    • "ON" light illuminates
    • "ENG A. ICE" message appear on ECAM MEMO display
    • Engine Anti Ice valves open provided Engine bleed air is available.
    • Continuous ignition is provided when the valve is open
  • OFF
    • "ON" light goes OFF
    • Engine Anti Ice valves close
  • Fault Light - Illuminates if Engine Anti Ice valve position disagrees with switch position.
Probe/Window Heat
Probe/Window Heat  
  • AUTO - Provides automatic Heating of Probes and Windows:
    • Inflight
    • On the ground provided one engine is running. (TAT Probes excluded)
  • ON - Provides Heating of Probes and Windows:
Cabin PRESS
MAN V/S CTL Switch  
Controls the outflow valve position via the manual motor, when MODE SEL switch is positioned to MAN. Spring loaded to neutral. Switch must be held in position until target V/S is reached, as outflow valve operation is slow.
  • UP - Moves valve towards open position.
  • DN - Moves valve towards closed position.
Mode SEL Switch  
  • Auto - Automatic mode is operating. Outflow valve is controlled by one system at a time.
  • MAN - Allows manual control by the MAN V/S CTL switch. Illuminates white when selected. The cabin altitude indication on the ECAM PRESS page may fluctuate when switching from AUTO to MAN.
  • Fault Light - Illuminates amber only when fault detected in both automatic systems.
LDG ELEV Selector  
  • Auto (Detent) - Pressurization system uses FMGS-determined landing elevation to optimize pressure schedule.
  • Other Positions - Pressurization system uses selected value for landing elevation reference in the event of an FMGC failure or incorrect landing elevation in the database. Actual value is displayed on the ECAM CRUISE and PRESS pages.
Ditching Switch ( Guarded )  
  • Normal - Selects normal system operation.
  • ON - Commands operating system to close the outflow valve, emergency ram air inlet, avionics ventilation inlet and extract valves and pack flow control valve.
    • Outflow valve will not automatically close if under manual control.