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supply line.
The APU fuel pump is supplied by the AC ESS SHED bus
or the batteries via the static inverter.
TRANSFER VALVES
Transfer valves allow fuel to be transferred from Outer
to Inner cells.
They open when the fuel level reaches low level sensors
in Inner cell.
Two level sensors are installed in each inner cell.
Each sensor controls two transfer valves, one in each
wing, which will open when the first inner cell low
level sensor becomes dry, irrespective of which side.
Once open, the transfer valves close automatically at
the next refuelling.
AIR RELEASE VALVE
Each engine supply line has an Air Release valve at
its highest point to enable the line to be bled.
TMUFUE101-T01 LEVEL 1
EFFECTIVITY 28-20-00 Page 2
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_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 28 FUEL SYSTEM
UF94200
EFFECTIVITY Page 12
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TMUFUE101-P01 LEVEL 1
ENGINE AND APU FUEL FEED PRESENTATION
EFFECTIVITY 28-20-00 Page 3
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_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 28 FUEL SYSTEM
UF94200
EFFECTIVITY Page 13
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SELF EXAMINATION
Are wing tank pumps running while center tank is
supplying?
A - Yes, wing tank pumps are always running.
B - No, only when center tank is empty.
C - No, because of center tank pump priority.
The engine LP valve closes when:
A - the fuel booster pumps pressure
decreases.
B - the engine is shut down or the ENG FIRE
pushbutton is released out.
C - the engine fire detection system senses
an engine fire.
When there is a low level in one inner cell:
A - one intercell transfer valve opens.
B - two transfer valves in one wing, open.
C - two transfer valves, one in each wing,
open.
TMUFUE101 LEVEL 1
EFFECTIVITY 28-20-00 Page 4
Jul 31/98
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 28 FUEL SYSTEM
UF94200
EFFECTIVITY Page 14
ALL
28 - FUEL SYSTEM
28-20-00 SYSTEM CONTROLS
CONTENTS:
Tank Pumps
Mode Selector
Center Tank Pumps
Crossfeed
TMUFUE301 LEVEL 1
EFFECTIVITY 28-20-00 Page 1
Nov 30/95
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 28 FUEL SYSTEM
UF94200
EFFECTIVITY Page 15
ALL
SYSTEM CONTROLS
TANK PUMPS
When a wing tank pump pushbutton is pressed in, the
related pump runs.
MODE SELECTOR
The MODE SEL pushbutton selects the center tank pumps
to automatic or manual mode.
CENTER TANK PUMPS
With the CTR TK PUMP pushbuttons pressed in, the pump
will be controlled automatically if Auto mode is
selected.
In MAN mode, the CTR TK pumps are manually switched
on or off by the related pump pushbuttons.
CROSSFEED
The XFEED pushbutton controls the crossfeed valve.
The XFEED pushbutton is normally released out, the
Crossfeed valve is closed.
If the pushbutton is pressed in, the valve opens and
the ON white light comes on.
The green OPEN light comes on when the valve is fully
open.
TMUFUE301-T01 LEVEL 1
EFFECTIVITY 28-20-00 Page 2
Nov 30/95
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MECHANICS / ELECTRICS & AVIONICS COURSE 28 FUEL SYSTEM
UF94200
EFFECTIVITY Page 16
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TMUFUE301-P01 LEVEL 1
SYSTEM CONTROLS
EFFECTIVITY 28-20-00 Page 3
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MECHANICS / ELECTRICS & AVIONICS COURSE 28 FUEL SYSTEM
UF94200
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THIS PAGE INTENTIONALLY LEFT BLANK
TMUFUE301 LEVEL 1
EFFECTIVITY 28-20-00 Page 4
Nov 30/95
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 28 FUEL SYSTEM
UF94200
EFFECTIVITY Page 18
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28 - FUEL SYSTEM
28-00-00 FUEL ECAM PAGE PRESENTATION
CONTENTS:
Fuel On Board
Fuel Used
Engine LP Valves
Tank Pumps
Transfer Valves
Crossfeed Valve
APU LP Valve
Fuel Quantities
Fuel Temperatures
TMUFUE501 LEVEL 1
EFFECTIVITY 28-00-00 Page 1
Jun 30/98
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 28 FUEL SYSTEM
UF94200
EFFECTIVITY Page 19
ALL
TMUFUE501-P01 LEVEL 1
FUEL ECAM PAGE PRESENTATION
EFFECTIVITY 28-00-00 Page 2
Jun 30/98
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 28 FUEL SYSTEM
UF94200
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