The air-conditioning system​ ensures a constant supply of fresh air and maintains a constant selected temperature in the three areas of the cockpit, front cabin and rear cabin, mainly by conditioning the air entering the interior of the cabin. The air entering the cabin is regulated by mixing cold air and bleed air to the right temperature.

The structure of the aircraft is precise, and the aircraft air-conditioning system is an important system module that supports the safe and stable flight of the aircraft, and plays a role in tracking and adjusting the environmental parameters of the aircraft cabin and equipment cabin.

Aircraft air conditioner is an environmental control device in the aircraft, which plays the same role of air conditioning as household air conditioners. So why can't you just put your home air conditioner on the plane? This is because aircraft flight is a dynamic process, and processes such as climbing, descending, and cruising face severe tests of vibration, air pressure, and drastic changes in temperature.