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DASSAULT FALCON 900EX EASY
SYSTEMS SUMMARY

Air Conditioning & Pressurization

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Do not use it for flight!

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AIR CONDITIONING & PRESSURIZATION INTRODUCTION

In order to maintain a comfortable area inside the cabin, the F900EX EASy is equipped with

an air conditioning and pressurization system.
The air conditioning system regulates the flow and temperature of air into the cabin and
cockpit areas for conditioning purpose.

The pressurization system regulates the cabin pressure, by the air flow discharged outside of the cabin, it depends on: -airplane altitude, -airplane vertical speed,
-the maximum differential pressure supported by the system. Both systems have an automatic mode and a manual mode, allowing the pilot to control directly the valves.
They use hot air supplied by the engines and/or the APU.
In case of failure (overpressure, negative pressure, maximum altitude), protections ensure
that limitations are observed.

SOURCES

The air conditioning system uses air supplied by: -engine No 1, -engine No 2, -engine No 3, -APU.
. For more information, refer to CODDE 1 / Chapter 02 / ATA 36.
The conditioned air is a mixture of: -hot bleed air directly supplied by engines HP and LP ports, or the APU, -cold air (hot bleed air cooled through the Environmental Control Unit (ECU)), -recycled cabin air.
The air conditioning heat exchanger is ventilated:
-in-flight, with external air supplied through a ram air inlet located on the No 1 engine pylon leading edge,
-on ground or in-flight at low speed, with additional air supplied through an air inlet located on the lower part of the fuselage.
AIR CONDITIONING  PRESSURIZATION 
　
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