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pressure, the SFV opens to control negative pressure at a value lower than or equal to
- 0.5 psid. A warning message will be displayed on the EICAS and the digital readout
on the STAT page will appear red.
CABIN DELTA P
SAFETY VALVE OPEN
1300
10.02
800
1000
CAB ALT
CAB RATE
LDG ELEV
P
GX_13_075
CABIN DELTA P
SAFETY VALVE OPEN
GX_13_076
1300
-0.5
800
1000
CAB ALT
CAB RATE
LDG ELEV
P
P I LOT T R A I N I N G GU I D E
INTEGRATED AIR MANAGEMENT SYSTEM
13-62 For Training Purposes Only
Sept 04
DOOR OPEN PROTECTION
Door open protection prevents cabin pressurization if the main entrance door is not
closed and fully locked.
If the main entrance door is open:
• If one or both packs are ON, both outflow valves are driven to the open position
• If both packs are OFF, the aft OFV is driven open and the forward OFV is driven
closed
PASSENGER DOOR
GX_13_077
100% 100%
OPEN OPEN
OUTFLOW VALVES
1 2
0% 100%
OPEN OPEN
OUTFLOW VALVES
1 2
PASSENGER DOOR
GX_13_078
For Training Purposes Only
Sept 04
13-63
P I LOT T R A I N I N G GU I D E
INTEGRATED AIR MANAGEMENT SYSTEM
EICAS PHILOSOPHY
The following represents the EICAS symbols and logic for the BLEED and AIR
CONDITIONING synoptic page. The symbols are shown in serviceable and failure
conditions.
GX_13_079
BLEED and AIR CONDITIONING LOGIC
EITHER ENGINE NOT OPERATING
DIRECTION OF FLOW
VALVE
NOT FAILED
OPEN
CLOSED
TRANSIT
INVALID
PACKS
BLEED AIR STARTER
POP-UP DISPLAY
and SOV
OPERATING FAILED INVALID
NOT
OPERATING
VALVE
FAILED
VALVE AND FLOW LINE
LP
HP
P I LOT T R A I N I N G GU I D E
INTEGRATED AIR MANAGEMENT SYSTEM
13-64 For Training Purposes Only
Sept 04
BLEED/AIR CONDITIONING/PRESSURIZATION EICAS MESSAGES
789
1 . 65
CABIN ALT
CABIN DELTA P
AUTO PRESS FAIL
AV FANS FAIL
CABIN ALT
EMER DEPRESS
L BLEED LEAK
R BLEED LEAK
L BLEED SYS FAIL
R BLEED SYS FAIL
L PACK AUTO FAIL
R PACK AUTO FAIL
L PACK FAIL
R PACK FAIL
L PACK TEMP
R PACK TEMP
TRIM AIR FAIL
TRIM AIR LEAK
WING A/ICE LEAK
XBLEED FAIL
GX_13_080
AUTO PRESS FAIL
Indicates that both channels
of the pressurization control
are inoperative.
CABIN ALT
Indicates that cabin altitude
is 9,000 feet or greater. CABIN DELTA P
Indicates that cabin differential
pressure is greater than 9.92 psid.
CABIN ALT
Indicates that cabin altitude is
between 8,200 and 9,000 feet.
EMER DEPRESS
Indicates that EMER DEPRESS
switch has been selected ON.
L (R) BLEED LEAK
Indicates that a bleed leak has
been detected in the L or R
bleed ducts.
L (R) BLEED SYS FAIL
Indicates that the affected bleed
system has failed.
L (R) PACK AUTO FAIL
Indicates that the affected
automatic pack control is
inoperative.
L (R) PACK TEMP
Indicates that the manual
temperature selection is out of
range.
TRIM AIR FAIL
Indicates that one trim air valve
and one hot air SOV have failed.
TRIM AIR LEAK
Indicates that a leak has been
detected in the trim air ducts.
L (R) PACK FAIL
Indicates that the
affected pack has failed.
XBLEED FAIL
Indicates that the bleed
crossfeed has failed, open
or closed.
AV FANS FAIL
G5000 only. Indicates that both
avionics fans have failed on the
ground.
WING A/ICE LEAK
Bleed leak detected in wing A/I
duct.
For Training Purposes Only
Sept 04
13-65
P I LOT T R A I N I N G GU I D E
INTEGRATED AIR MANAGEMENT SYSTEM
BLEED/AIR CONDITIONING/PRESSURIZATION EICAS MESSAGES (Cont)
GX_13_081
CAB ALT LEVEL HI
Indicates that CABIN ALT
warning and caution levels
have been reset for high
altitude landing and takeoff.
AUTO PRESS FAULT
Indicates that one channel of
the cabin pressure automatic
control is inoperative.
AVIONICS FAN FAIL
Indicates that the underfloor
avionics fan has failed.
HUMIDIFIER FAIL
Indicates that the humidifier in
the cooling pack has failed.
BLEED MISCONFIG
Indicates that the bleed air
configuration is incorrect for
operation.
L (R) BLEED FAULT
Indicates that there is a loss of
redundancy in the bleed system.
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