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R valves associated with the loop close automatically. If the overheat
R condition is eliminated, the circuit must be reset to open the valves.
R The different FAULT warnings on the AIR COND overhead panel 30VU are:
R - the FAULT legend on the ENG 1 BLEED pushbutton switch which comes on if
R there is an overheat condition in the LH zone (LH pylon, LH wing and LH
R MID fuselage),
R - the FAULT legend on the ENG 2 BLEED pushbutton switch which comes on if
R there is an overheat condition in the RH zone (RH pylon, RH wing and RH
R MID fuselage),
R - the FAULT legend on the APU BLEED pushbutton switch which comes on if
R there is an overheat condition in the MID and AFT fuselage (APU duct).
R At the same time as the FAULT legend on the ENG 1 BLEED pushbutton switch
R comes on, the following valves close automatically:
R - the LH pressure regulating valve,
R - the LH wing anti-icing (if the wing anti-icing system is operative) valve,
R - the APU bleed valve (the APU pushbutton switch is in the ON position),
R - the crossbleed valve (the selector is in the AUTO position).
R When the FAULT legend on the ENG 2 BLEED pushbutton switch comes on, the
R following valves close automatically:
R - the RH pressure regulating valve
R - the RH wing anti-icing valve (if the wing anti-icing system is operative)
R - the crossbleed valve (the selector is in the AUTO position).
R When the FAULT legend on the APU BLEED pushbutton switch comes on, the APU
R bleed valve closes automatically (the APU pushbutton switch is in the ON
R position). Engine start sequence prevents that the APU bleed valve and the
R crossbleed valve (the selector is in the AUTO position) close.
R A functional test can only be carried out on the ground by automatic control
R activation. It checks the outputs or status of each leak detection loop
R in-turn. The maintenance test permits the maintenance crew to check a
R specific function of the system. Additionally, the maintenance test finds a
R failed Line Replaceable Unit (LRU).
6. Leak (Overheat) Detection_________________________
Component Location - Cockpit
Figure 008
R 1EFF : 001-049, 051-099, 101-149, 151-199, 1 36-22-00Page 27/28 1201-299, 401-499, 1Aug 01/05 1 1 1CES R Component Location - Cockpit R Figure 008A
1EFF : 301-399, 1 36-22-00Page 29/30 1 1 May 01/04 1 1 1CES
Leak Detection - Electrical Schematic
Figure 009
R 1EFF : 001-049, 051-099, 101-149, 151-199, 1 36-22-00Page 31 1201-299, 401-499, 1Aug 01/05 1 1 1CES 1
R Leak Detection - Electrical Schematic
R Figure 009A
1EFF : 301-399, 1 36-22-00 Page 32
1 1 May 01/04
1 1
1CES 1
Leak Detection Logic LH
Figure 010
1EFF : ALL 1 36-22-00Page 33/34 1 1 May 01/04 1 1 1CES
1
Leak Detector Logic RH
Figure 011
1EFF : ALL 1 36-22-00Page 35/36 1 1 May 01/04 1 1 1CES
1
LEAK DETECTION - ADJUSTMENT/TEST
________________________________ TASK 36-22-00-710-001 Operational Test of the Overheat Detection System
1. Reason for the Job
__________________
Do a continuity test of the overheat detection.
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific warning notice
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied from the External Power 36-11-00-740-001 BITE Test of the BMC 1(2)
3. Job Set-up
__________ Subtask 36-22-00-861-050
A. Energize the aircraft electrical circuits (Ref. TASK 24-41-00-861-002). Subtask 36-22-00-941-050
B. Safety Precautions
(1)
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