REMOVAL/INSTALLATION 401 ALL Removal of the Fuselage Overheat 401 ALL Sensing-Elements (Loop A and B) Installation of the Fuselage 405 ALL Overheat Sensing-Elements (Loop A and B)
SENSING ELEMENT - OVERHEAT, FUSELAGE 36-22-18
(LOOP A AND B)
INSPECTION/CHECK 601 ALL Detailed Inspection of the 601 ALL Fuselage Overheat Sensing Elements
36-CONTENTS Page 15 Aug 01/05 R CES
PNEUMATIC - GENERAL - DESCRIPTION AND OPERATION
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1. General
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The pneumatic system gets compressed air from the pneumatic air sources and supplies the compressed air through ducts to the user systems. The ducts are installed in the fuselage, the belly fairing and the wings. The control of the pneumatic system is usually automatic. Bleed-Air Monitoring Computers (BMCs) control the automatic function. The BMCs are installed in the avionics compartment. There is one BMC for each engine. You can also control the system manually. The pushbutton and selector switches on the overhead panel 30VU in the cockpit, control the manual function. You can monitor the operation of the pneumatic system on the ECAM System Display (SD). The pushbutton switches on the overhead panel 30VU have no indication when the system operates correctly.
R A. Pneumatic Air Sources R The aircraft engines, the APU or a ground air source can supply R compressed air to the pneumatic system. The distribution system supplies R the compressed air from the different sources to the user systems.
(1)
The aircraft engines are the primary source of compressed air in flight. The air is bled from the 5th (IP) or 9th stage (CFMI engines) of the engine High Pressure (HP) compressor. The engine bleed air is temperature and pressure controlled.
(2)
The Auxiliary Power Unit (APU) is the primary source of compressed air on the ground. The air is bled from the APU load-compressor module. You can also use the APU to supply bleed air to the user systems during flight. The APU can supply bleed air up to an altitude of 20000 ft. (6096 m).
(3)
A ground air source is an alternative to the APU for the supply of compressed air on the ground. There is one High Pressure (HP) ground connector installed on the aircraft. You can use it to let the ground air source supply compressed air to the pneumatic system.
B. User Systems The pneumatic system supplies the subsequent aircraft systems:
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the wing ice protection system (Ref. 30-11-00),
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the air conditioning system (Ref. 21-00-00),
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the engine starting system (Ref. 80-00-00),
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the hydraulic reservoir pressurizing system (Ref. 29-14-00),
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the pressurized water system (Ref. 38-42-00),
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the nacelle anti-ice valve (servo pressure) (Ref. 30-00-00)
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C. Symbols
(Ref. Fig. 001)
2. Component Location
__________________
(Ref. Fig. 002)
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
(Ref. Fig. 003)
**ON A/C 301-399,
(Ref. Fig. 003A)
**ON A/C ALL
3. System Description
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**ON A/C 001-049, 051-099, 101-149, 201-299,
(Ref. Fig. 004) R **ON A/C 151-199, 401-499,
(Ref. Fig. 004A)
**ON A/C 301-399,
(Ref. Fig. 004B)
Symbols
Figure 001
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Component Location - Fuselage
Figure 002
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Component Location - Cockpit
Figure 003
R 1EFF : 001-049, 051-099, 101-149, 151-199, 1 36-00-00Page 5 1201-299, 401-499, 1Aug 01/05 1 1 1CES 1
R Component Location - Cockpit
R Figure 003A
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Pneumatic System - Schematic 中國航空網 www.k6050.com 航空翻譯 www.aviation.cn 本文鏈接地址：A320飛機維護手冊 AMM PNEUMATIC 氣源 1(18)
