AUTO/ON:
-Automatically controls cargo heat pressure regulating valve.
OFF:
-Closes cargo heat pressure regulating valve and reset fault circuit.
FAULT LIGHT:
-Illuminates amber when duct overheat is detected (88°) and extinguishes when temperature drops below (70°) and OFF is selected. System then resets with ISOL VALVE switch ON.
AUTO/ON:
-Opens inlet and outlet Isolation valves and activates extraction fan provided there is no smoke detected in the AFT cargo compartment.
OFF:
-Closes inlet and outlet Isolation valves and turns off extraction fan.
FAULT LIGHT:
-Illuminates amber when either inlet or outlet valve is in disagreement with the selected position.
ROTARY KNOB:
-Adjust temperature for AFT Cargo compartment.
*Cold = 40°F.
*MIDDLE = 60°F.
*HOT = 80°F.
ILLUMINATES:
-Illuminates when smoke is detected in respective Cargo compartment. Activated by both loops or by one loop if the other is faulty. Activation of the AFT CARGO SMOKE light also closes the AFT Cargo inlet and outlet isolation valves and shuts off the AFT Cargo extraction fan.
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ILLUMINATES:
-Illuminate when associated extinguishing agent has been discharged.
WHEN PRESSED:
-Tests smoke detectors in sequence by SDCU.
-Tests SMOKE lights twice with associated ECAM..
-Closes ventilation system isolation valves.
-Tests DISCH lights.
PRESSED:
-Discharges associated agent (1 or 2) in the respective Cargo compartment (FWD or AFT).
BOTH IN AUTO:
-On ground before takeoff power applied: the Ventilation system is in open circuit configuration. (below -15°C skin temp goes into a closed configuration.)
-On ground after takeoff power applied, or in flight: the Ventilation system is in closed circuit configuration.
- In flight, Ventilation system can be in the intermediate configuration if skin temperature is above flight threshold.
When either switches are in OVRD:
-The system goes to closed circuit configuration.
-Air from Air Conditioning system is added to Ventilation system.
When both switches are in OVRD::
-Air is provided from the Air Conditioning system and then extracted overhead.
-The blower fan stops.
-
ON:
-Recirculation fan runs.
OFF:
-Recirculation fan turns off.
-
ON:
-The start valve opens, provided the ENG MODE selector is in CRANK or IGN/START and N2 is less than 50%.
-Both pack valves close.
-The ON light illuminates blue.
OFF:
-The start valve is closed unless a auto start cycle is in progress.
ON:
-Thrust control reverts from the normal (EPR) control mode to the alternate (N1) control mode. When an automatic reversion to the N1 rated or unrated mode occurs, selecting the switch confirms the mode. The ON light illuminates blue.
-The normal (EPR) control mode is selected, if available.
- PUSHED:
-Will operate on ground when at least one engine is running.
-Each press of the button will discharge repellent for approx 1 second thru a timer valve.
*Never apply repellent to a dry windshield.
- OFF:
-When selected OFF, the wiper stops out of view (parked position).
SLOW:
-Operates respected windshield wiper at half speed.
FAST:
-Operates respected windshield wiper at high speed.
*Never operate wipers on a dry windshield*