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WING A/ICE ON
WING
AUTO
OFF ON
WING
AUTO
OFF ON
GX_03_011
BLEED / ANTI-ICE
LP
AIR
COND
HP
L
LP
HP 40
PSI
40
PSI
R
APU
73.3
T/O
SYNC
N1
73.3
789
ITT
789
WAI WAI
P I LOT T R A I N I N G GU I D E
ANTI-ICE SYSTEM (IAMS)
3-10 For Training Purposes Only
Sept 04
WING CROSS BLEED VALVE (CBW)
The left and right hand anti-ice systems normally operate independently. In the event
of a single engine failure, bleed failure, or a failure of wing anti-ice air supply on one
side, the left and right systems are interconnected by a CBW. This allows both wings
to be fed from a single engine. In the case of a failure in AUTO position, the CBW will
automatically be opened and the affected WAIV will automatically be closed by the
BMC. Manual operation of the CBW is provided on the ANTI-ICE panel.
WING X-BLEED
AUTO
OFF ON
WING X-BLEED
AUTO
OFF ON
WING XBLEED FROM R
WING A/ICE AUTO
GX_03_012
BLEED / ANTI-ICE
LP
AIR
COND
HP
L
LP
HP 40
PSI
0
PSI
R
APU
73.3
T/O
SYNC
N1
73.3
789
ITT
789
WAI WAI
For Training Purposes Only
Sept 04
3-11
P I LOT T R A I N I N G GU I D E
ANTI-ICE SYSTEM (IAMS)
SLAT ANTI-ICING
The sections of wing leading edge that are heated are as follows:
• Inboard fixed leading edge
• Slats 1, 2, 3 and 4
The short fixed leading edge section outboard of slat 4 on each wing, and the leading
edge of the winglet are not heated.
SLAT ANTI-ICE OPERATION
Air is ducted into the fixed section of the wing leading edge from the forward part of
the wing root. From there it is directed into the wing leading edge slats via a telescopic
duct which extends as the slats move to the extend position. Piccolo tubes in both
inboard fixed leading edges and outboard in each slat distribute the air into the inside
surface of the wing leading edge for ice protection. Air is then extracted overboard
between the slat and the main wing.
GX_03_013
Telescopic
Joint L Wing
A/I Valve
Temperature
Sensor
Wing Anti-ice
Valves
(WAIV)
Slat
Extended
Piccolo
Tube
Wing
Crossbleed
Valve
P I LOT T R A I N I N G GU I D E
ANTI-ICE SYSTEM (IAMS)
3-12 For Training Purposes Only
Sept 04
WING ANTI-ICING (WAI)
The wing anti-icing system is used to prevent formation of ice on the leading edge of
the wing. The wing leading edge uses hot engine bleed air from either the 5th stage or
the high pressure compressor 8th stage of the bleed air system.
GX_03_014
Telescopic
Joint
L AIR
COND.
R AIR
COND.
CROSS
BLEED
VALVE
L WING
A/I VALVE
R WING
A/I VALVE
Telescopic
Joint
Temperature
Sensor
Temperature
Sensor
Ice
Detector
Ice
Detector
APU
LOW
PRESS
PORT
HIGH
PRESS PORT
L ATS
VALVE
HIGH
PRESS
VALVE
PRV
COWLANTI-ICE
L AIR
TURBINE
STARTER
L COWL
A/I VALVE
R ATS
VALVE
R COWL
A/I VALVE
R AIR
TURBINE
STARTER
HP
GROUND
AIR
SUPPLY
PRESSURE
REGULATING
VALVE
WING
CROSS
BLEED
VALVE
MON
CH
CONT
CH
BMC 1
DAU DAU
CONT
CH
MON
CH
BMC 2
For Training Purposes Only
Sept 04
3-13
P I LOT T R A I N I N G GU I D E
ANTI-ICE SYSTEM (IAMS)
EICAS PHILOSOPHY
The following represents the EICAS symbols and logic for the BLEED/ANTI-ICE
synoptic page. The symbols are shown in serviceable and failure conditions.
GX_03_015
BLEED/ANTI-ICE SYSTEM LOGIC
VALVE AND FLOW LINE
WING LEADING EDGE
ENGINE COWL
DIRECTION OF FLOW
VALVE
NOT FAILED
OPEN
CLOSED
TRANSIT
INVALID
VALVE
FAILED
OVERHEAT
WAI ON
CAI ON CAI OFF
LOW TEMPERATURE
WAI OFF
P I LOT T R A I N I N G GU I D E
ANTI-ICE SYSTEM (IAMS)
3-14 For Training Purposes Only
Sept 04
WAI FAILURE INDICATIONS
The WAI failure indications are as follows:
WING ANTI-ICE OVERHEAT
If there is an overheat in the wing anti-ice system, a message is displayed on the
EICAS.
WING ANTI-ICE FAIL
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本文链接地址：
Bombardier globle ANTI-ICE SYSTEM (IAMS)(4)
