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APU BLEED pushbutton status is not available.
(3) APU bleed air pressure
This box displays the relative bleed air pressure in green.
It shows an amber XX when the ADIRS2 is not available or selected OFF.
(4) APU GEN line contactor indication
Displayed in green when the APU GEN line contactor is closed.
(5) APU GEN parameters
Identical to the APU GEN parameters on the ELEC page.
(6) FUEL LO PR
Displayed in amber if APU fuel pressure gets low.
(7) FLAP OPEN
Displayed in green when APU air intake flap is fully open (MASTER SW ON).
(8) APU N
‐ Displays APU speed in green.
‐ Becomes amber when N ≥ 102 %.
‐ Becomes red when N ≥ 107 %.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
APU
CONTROLS AND INDICATORS
A318/A319/A320/A321 FLEET DSC-49-20 P 9/14
FCOM 19 AUG 10
(9) APU EGT
‐ Displays APU EGT in green.
‐ Becomes amber when EGT ≥ EGT max –33 °C (steady during APU start, pulsing when APU
is running). EGT max : See *
‐ Becomes red when EGT ≥ EGT max (automatic shutdown begins). EGT max : See *
* ECB calculates EGT max and transmits it to the ECAM. It is a function of N during start,
and a function of ambient temperature when the APU is running.
Maximum EGT during start : 1 038 °C.
Maximum EGT with APU running : 690 to 725 °C depending on ambient temperature.
(10) LOW OIL LEVEL
Advisory : Displayed if the ECB detects a low APU oil level when the aircraft is on the ground,
and the APU is not running.
ECAM APU PAGE
Applicable to:
(1) AVAIL
Displayed in green when APU N is above 95 %.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
APU
CONTROLS AND INDICATORS
A318/A319/A320/A321 FLEET DSC-49-20 P 10/14
FCOM 19 AUG 10
(2) APU bleed air valve position
Inline - Green : The APU bleed air valve is not closed.
Crossline - Green : The APU bleed air valve is closed.
Crossline - Amber : The APU bleed air valve is closed and the APU bleed is ON.
XX - Amber : The APU bleed air valve status information is not available, or the
APU BLEED pushbutton status is not available.
(3) APU bleed air pressure
This box displays the relative bleed air pressure in green.
It shows an amber XX when the ADIRS2 is not available or selected OFF or the data from the
ECB invalid or not transmitted.
(4) APU GEN line contactor indication
Displayed in green when the APU GEN line contactor is closed.
(5) APU GEN parameters
Identical to the APU GEN parameters on the ELEC page.
(6) FUEL LO PR
Displayed in amber if APU fuel pressure gets low.
(7) FLAP OPEN
Displayed in green when APU air intake flap is fully open (MASTER SW ON).
(8) APU N
‐ Displays APU speed in green.
‐ Becomes amber when N ≥ 102 %.
‐ Becomes red when N ≥ 107 %.
(9) APU EGT
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
APU
CONTROLS AND INDICATORS
A318/A319/A320/A321 FLEET DSC-49-20 P 11/14
FCOM 19 AUG 10
‐ Displays APU EGT in green.
‐ Becomes amber when EGT ≥ EGT max –33 °C. EGT max :See *
‐ Becomes red when EGT ≥ EGT max (automatic shutdown begins). EGT max :See *
* ECB calculates EGT max and transmits it to the ECAM. It is a function of N during start,
and a function of ambient temperature when the APU is running.
Maximum EGT during start : 1 090 °C.
Maximum EGT with APU running : 675 °C.
(10) LOW OIL LEVEL
Advisory : Displayed if the ECB detects a low APU oil level when the aircraft is on the ground,
and the APU is not running.
ECAM APU PAGE
Applicable to:
,
,
MSN,,,
(1) AVAIL
Displayed in green when APU N is above 95 %.
(2) APU bleed air valve position
Inline - Green : The APU bleed air valve is not closed.
Crossline - Green : The APU bleed air valve is closed.
Crossline - Amber : The APU bleed air valve is closed and the APU bleed is ON.
XX - Amber : The APU bleed air valve status information is not available, or the
APU BLEED pushbutton status is not available.
(3) APU bleed air pressure
This box displays the relative bleed air pressure in green.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
APU
CONTROLS AND INDICATORS
A318/A319/A320/A321 FLEET DSC-49-20 P 12/14
FCOM 19 AUG 10
It shows an amber XX when the ADIRS2 is not available or selected OFF or the data from the
ECB invalid or not transmitted..
(4) APU GEN line contactor indication
Displayed in green when the APU GEN line contactor is closed.
　
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