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 2. Component Location
__________________ R (Ref. Fig. 001, 002)
 -------------------------------------------------------------------------------FIN | FUNCTIONAL DESIGNATION | PANEL|ZONE|ACCESS | ATA DOOR | REF.
 -------------------------------------------------------------------------------3DL P/B SW-WING ANTI-ICE 25VU 9DL VALVE-WING ANTI-ICE,L 522 522AB 30-11-51
 10DL VALVE-WING ANTI-ICE,R 622 622AB 30-11-51
 3. System Description
__________________ R (Ref. Fig. 001, 003)
 A. Pneumatic Circuit
 The wing ice protection system is supplied with hot air from the pneumatic system, downstream of the pre-cooler. The anti-ice control valve (in the wing, outboard of the engine pylon) isolates these two systems. A restrictor downstream of the anti-ice control valve controls the air flow.
 The hot air goes through a lagged duct that connects the anti-ice control valve to the telescopic duct, inboard of RIB 13. The telescopic duct only attaches to the piccolo ducts in the slat 3. The piccolo ducts 3, 4 and 5 (that connect together with flexible ducts) release the hot air to heat the slats.

 Wing Ice Protection - Component Location
 Figure 001
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 Wing Ice Protection - Panel Location
 Figure 002
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 Air Distribution in Slats
 Figure 003
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 B. Air Distribution in the Slats
 The piccolo ducts release the air into the slats through holes along their foward length. The air flows around the forward area of the slat then goes through acceleration slots into the rear section. It is then released overboard through the holes in the bottom surface of the slat.
 4. Power Supply
____________
 (Ref. Fig. 004)

 The referenced figure shows the power supply.
 5. Interfaces
__________
 (Ref. Fig. 005)
 These components interface with, or are in, the wing ice protection system:
 -
the anti-ice valve control-switch (3DL)

 -
the System Data Acquisition Concentrator/Electronic Centralized Aircraft Monitoring (SDAC/ECAM)

 -
the Environmental Control System Zone Control and Bleed Status Computer (ECS computer)

 -
the Centralized Fault Display System (CFDS)

 -
the landing-gear oleo proximity-switches.

 6. Component Description
_____________________
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
 (Ref. Fig. 006)
 **ON A/C 301-399,
 (Ref. Fig. 006A)
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
 (Ref. Fig. 007)
 **ON A/C 301-399,
 (Ref. Fig. 007A)

R  Electrical Control System - Schematic Figure 004 (SHEET 1)
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R  Electrical Control System - Schematic Figure 004 (SHEET 2)
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 Wing Anti-icing - Block Diagram
 Figure 005
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 Wing Anti-Ice Control Valve - Component Location
 Figure 006

R 1EFF : 001-049, 051-099, 101-149, 151-199, 1 30-11-00Page 9 1201-299, 401-499, 1Aug 01/05 1 1 1CES 1R Wing Anti-Ice Control Valve - Component Location R Figure 006A

R 1EFF : 301-399, 1 30-11-00Page 10 1 1 May 01/04 1 1 1CES 1

 Wing Anti-Ice Control Valve - Schematic Operation
 Figure 007

R 1EFF : 001-049, 051-099, 101-149, 151-199, 1 30-11-00Page 11 1201-299, 401-499, 1Aug 01/05 1 1 1CES 1R Wing Anti-Ice Control Valve - Schematic Operation R Figure 007A

R 1EFF : 301-399, 1 30-11-00Page 12 1 1 May 01/04 1 1 1CES 1

 **ON A/C ALL

 A. Wing Anti-Ice Control Valve 9DL(10DL)
 (1) General
 Two wing anti-ice control-valves are installed on the aircraft, one in each wing leading-edge outboard of the engine pylons. A single ON/OFF switch on the cockpit overhead panel (25VU) operates the two valves.
 The wing anti-ice control-valve:
 -isolates the anti-ice ducts from the pneumatic system bleed-air supply when anti-icing is not required
　
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