A320 pressurization

[woocash]

Is there any publicly available information about pressurization and climate control systems in A320?
I am particularly interested in how they work if a part of the system fails.
Is climate control independent of pressurization? If climate control fails, does the bleed air still pressurize the aircraft?

[TwoTone-7]

Pressurisation system has two systems, only one is operational at any one time.
There is a manual control as well in case both system were to fail you would use the MAN V/S CTL. In any other case, to go from system one to two, press the MAN pb and after ten seconds, revert to auto. This is activate the second system.

Outflow valve working with three motors, two of these are automatic and one is manual. The outflow valve fully opens just before take off and 55 seconds after reaching 70kts on the roll out to relieve residual pressure. On the setting of take off thrust, the cabin is pre pressurised to ^p .1 psi

The cabin pressure controllers get its data i.e landing elevation and QNH from the FMGS. In case of FMGS failure, the landing elevation can be manually set and so can the cabin altitude. Pressure altitude is gained from the ADIRS.

If climate control fail then pressurization would be unaffected. In the event of dual pack failure the pack anti ice valves will control the temperature.

[woocash]

If climate control fail then pressurization would be unaffected. In the event of dual pack failure the pack anti ice valves will control the temperature.

Thank You! Is there any reference I can look into? Any manuals that explicitly state this independence?

[Natstrackalpha]

You will find the reference and the publication in the manuals they give you at the airline training course.

[woocash]

In FCOM 3.02.21 found online, it says that in case of dual pack failure you should descent do FL100 or MEA whichever is higher.

Isn't that due to the ACFT not being pressurized anymore?

[Chopper OZ]

Yes.......

[Airmann]

SmartCockpit - Airbus 320 Series (http://www.smartcockpit.com/plane/airbus/A320/)

You can find the FCOM here, just go to the Air Con/Press/Vent section in the Sytems.

[Microburst2002]

Woocash

They are independent in that one system is dedicared to make outside air get inside the airplane and the other is dedicated to regulate the cabin pressure.

However, the action of one system has an effect in the other, inevitably.

Finally, you shoul check if any of the systems uses inputs of the other.