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BUS TIE
20 A 0 A 30 A
28.5 V 28.0 V
GEN GEN GEN
0.0 V
APU
L AUX BUS R AUX BUS
ELEC
1200
AUTO PLAN
SHLDR SIDE
PWR
EXT
24.1V
DN
FLAPS 0 GEAR
DN DN
AUXILIARY POWER UNIT
Sep 13/2004 Flight Crew Operating Manual Volume 2
REV 1 CSP 100-6 05-01-13
CONTROL AND INDICATIONS (Cont)
ECS SYNOPTIC PAGE
The ECS synoptic page is used to monitor the APU load control valve.
CFO0305002_010
CAS
CKLST SKIP
FRMT TFC ENTER
ELEC FLT HYD
L R
FUEL
TR/WX SUMRY
COM1 NAV1 ATC1/TCAS ADF1 HF1 COM3 COM2
118.000 108.00 7777 1799.5 118.000 118.000
118.000 108.00 STBY 190.0 2.0000 118.000 118.000
ABV
TX 2.0000 AM
DN
CAB ALT
CAB RATE
APU RPM
APU EGT
FUEL QTY LBS
TOTAL
N2
OIL PRESS
OIL TEMP
FF PPH
I T T
N1 NU
ND
STAB AIL
TRIM
LWD RWD
RUD
FLAPS GEAR
7300
1000
0
61.0
600
84.7
46
115
7300
100
250
12000
6000 6000
93.0
84.7
46
115
7300
ST
A
RT
ST
A
RT
600
IGN IGN
85.0 MCT
MACH
HOLD
VIB VIB
85.0 MCT
REV
L R
6.6
A/ICE
ECS
MFD CONTROL
RAM AIR
COCKPIT
22°
24°
16°
24°
28°
25°
CABIN
MANUAL
PACK TRIM AIR
XBLEED
APU
PSI PSI
OXY QTY
CAB ALT
CAB RATE
CAB AP
LNDG ALT
1200
6200
1500
9.1
14000
45 60
C
C
C
C
C
C
ECS
AUTO PLAN
SHLDR SIDE
DN DN
SPOILERS
AUXILIARY POWER UNIT
Volume 2 Flight Crew Operating Manual Sep 13/2004
05-01-14 CSP 100-6 REV 1
CONTROL AND INDICATIONS (Cont)
FUEL SYNOPTIC PAGE
Operation of the APU pump and fuel SOV is monitored on the FUEL synoptic page.
CAS
CKLST SKIP
FRMT TFC TR/WX ENTER SUMRY
A/ICE ELEC FLT HYD
L R
600 600
61.0
NI
ITT
N2
OIL PRESS
OIL TEMP
FF PPH
84.7
46
115
7300
84.7
46
115
7300
APU RPM 100
APU EGT 250
FUEL QTY LBS
STAB AIL
LWD RWD
RUD
NU
ND
6.6
GEAR
SPOILERS
CAB ALT
CAB RATE
7300
1000
FUEL
COM1 NAV1 ATC1/TCAS ADF1 HF1 COM3 COM2
118.000 108.00 1200 1799.5 118.000 118.000
118.000 108.00 STBY 190.0 2.0000 118.000 118.000
ABV
TX
UP
2.0000 AM
ECS
85.0 MCT 85.0 MCT TRIM
FUEL USED
3900 LBS
135 ° C 135 ° C
43° C
4870 LBS 4870 LBS
TOTAL FUEL
9740 LBS
25 25
APU
FUEL
CFO0305002_013
AUTO PLAN
SHLDR SIDE
61.0
UP
UP
L R
FLAPS 0
TOTAL
9740
4870 4870
CONTROL
MFD
AUXILIARY POWER UNIT
Sep 13/2004 Flight Crew Operating Manual Volume 2
REV 1 CSP 100-6 05-01-15
EICAS MESSAGES
The APU system messages are displayed on the EICAS.
Inhibits, a brief description, and aural warnings (if applicable) are listed in the table below.
MESSAGE INHIBITS MEANING
AURAL
WARNING
APU FIRE
The APU fire detection loop has activated. On
the ground the system should automatically
shut the APU down and activate the fire extinguisher.
In flight the APU will not automatically
shut down or activate the fire extinguisher
“APU FIRE”
APU OVERTEMP TO
An APU EGT over temperature has been
detected. On the ground, the APU will automatically
shutdown
APU BLEED ALT LIMIT TO/LAND
APU bleed air has been commanded above
20 000 ft or the APU bleed modulated due to
excessive EGT
APU FUEL SOV FAIL TO/LAND The APU shutoff valve has failed
APU OVERSPEED TO/LAND The APU has shutdown due to an overspeed
APU OIL PRESS LOW TO/LAND The APU oil pressure is low while in flight
APU OIL TEMP HIGH TO/LAND The APU oil temperature is high while in flight
APU STARTER FAIL
ON TO/LAND
Power is still being supplied to the APU starter
when electronic control unit is not commanding
a start
APU FAULT TO/LAND
A fault is indicated in the APU system. One or
more of the following has occurred:
- The APU bleed valve has failed
- The APU fuel solenoid has failed
- A start is prevented
- The avionics are not communicating with the
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