Airbus 320 Airconditioning

Air conditioning is provided in passenger aircraft for the comfort of passengers, to pressurise, heat, cool, and ventilate the aircraft cabin. The air conditioning system is supplied by air processed through two packs which regulate airflow and temperature as required. Airplane air conditioning system mixes hot and cold air to achieve the desired temperature in the cockpit and cabin.

It uses bleed air from Engine or APU to provide conditioned air to the cabin with sufficient pressure and flow to maintain cabin pressurisation and a temperature controlled environment throughout the operating envelope of the aircraft.

A320 - Airconditioning - Aviatorsbuzz

It is a little known fact that PACK is an acronym for Pneumatic Air Conditioning Kit.

The basic air conditioning system in use in A320 is fan turbine (turbo fan) which uses bleed air.

The basic airflow through the pressurised part of the fuselage starts with the pneumatic system.

Hot, high pressure air is supplied to two packs. The packs are responsible for basic temperature regulation.

From the packs the air is distributed throughout the aircraft.

The pressurisation system controls the airflow overboard to maintain the cabin pressurisation within safe limits.


Regulatory Requirements

  • Requirement of fresh air: Fresh air must be provided 1lbs per seat per minute and not less than 0.5lbs in case of emergency.
  • Temperature: Should be maintained between 18°c to 24°c.
  • Relative Humidity: The RH of the cabin be should be maintained at approx 30%.
  • Contamination: Co particle contamination should not be more than 1 in 20,000.
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Follow our TechTalks with Ria Maini and Kartik Bhatnagar, both commercial pilots, rated and endorsed on the A320. Although they recently stepped into their aviation career, nothing has stopped them from taking their knowledge to the next level, with successful experience in coaching on the subject of A320’s for aspiring pilots and a memory refresh for the experienced ones. Curiosity, passion for flying and avionics led them to start "A320 Trivia", and their endeavour has been to share their knowledge to benefit all aviation enthusiasts and pilots, and to highlight key dynamics of the versatile aircraft. You are welcome to share your valuable inputs and further enable this page, to be an expert guide/reference, polestar for all to follow. If you are interested in discovering new and mind boggling facts on the aircraft & technical general, catch up on our weekly blog!