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Extinguishes when the YELLOW
ELEC PUMP switch is selected OFF,
except during an overheat; in which
case, the light remains on as long as
the overheat is present.
Fuel Panel
X FEED Switch & Open Light
· Switch
· OFF Closes
Crossfeed valve.
· ON Open
Crossfeed valve.
ON illuminates white.
· Open Light Illuminates
green when
Crossfeed valve is fully open.
·
ENG 1 & 2 L/R TK Pumps Switch & Fault
Lights
· Switch
· ON Energize
associated
Tank Pump; fuel feeds only
when center Tank Pumps'
delivery pressure drops below
threshold.
· OFF Deactivate
associated
Tank Pump.
· Fault Lights Illuminates
amber when
the delivery pressure drops. Inhibited
when OFF selected.
·
CTR TK 1 & 2 Pump Switches & Fault
Lights
· Switch
· ON Activates
associated
Center Tank Pump. If MAN
mode is selected on MODE
SEL switch.
· OFF Deactivate
associated
Center Tank Pump.
· Fault Lights Illuminates
amber when
the associated Pump is operating and
delivery pressure drops.
·
Mode SEL Switch & Fault Lights
· Switch
· AUTO Center
Tank Pumps
control is automatic:
· Pumps operate at
engine start for two
minutes
· Pumps operate
provided slats are
retracted
· Pumps automatically
turn off five minutes
after Center Tank low
level is reached
· MAN Allows
manual control
of Center Tank Pumps with
CTR TK PUMP switches.
· Fault Lights Illuminates
amber when
Center Tank has more than 550
pounds of fuel and the left or right wing
Tank has less than 11,000 pounds.
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Flight Deck Documentation AIRBUS A320
12.11.06 Ralf Anderseck Seite 202.2.8.
Electrical Control Panel ( A320 )
BAT 1/2 Indication Window
Display the Battery voltage
BAT 1/2 Switches
Controls the operation of the corresponding
battery charge limiter.
· AUTO The
Batteries are
automatically connected to the DC
BAT bus during the following:
· APU starting
· Battery charging
· Below 100 knots on the
ground with a loss of AC
buses 1 and 2
· OFF The
Battery charge limiter is not
operating and the batery line contactor
is open. The OFF light illuminates
white provided the DC BAT bus is
powered. The HOT BAT buses remain
powered.
· Fault Light Illuminates
amber when
the charging current for the
corresponding battery increases at an
abnormal rate. In addition, the battery
contactor opens.
·
AC ESS Feed Switch
Enables the AC ESS BUS to be powered via
AC BUS 2 instead of AC BUS 1.
· Normal AC
ESS BUS is supplied
from AC BUS 1.
· ALTN AC
ESS BUS is supplied from
AC BUS 2.
· Fault Light Illuminates
amber when
the AC ESS BUS is not electrically
powered.
·
Galley Switch
· AUTO The
Galleys are electrically
powered. The main Galley bus is
automatically shed when only one
generator is operating, except on the
ground when the APU or external
power is available.
· OFF The
Galleys are not electrically
powered.
· Fault Light Illuminates
amber when
any generator load is above 100% of
its rated output.
·
IDG 1/2 Switches
Guarded and normally springloaded out. When
pushed, the IDG is disconnected from its drive
shaft and can only be reconnected by
Maintenance.
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Flight Deck Documentation AIRBUS A320
12.11.06 Ralf Anderseck Seite 21GEN
1/2 Switches
· ON The
Generator field is energized
and the line contactor closes provided
electrical parameters are normal.
· OFF The
Generator field is deenergized
and the line contactor
opens. The fault circuit is reset.
· Fault Light Illuminates
amber if a
protection trip is initiated by the
Generator control unit (GCU), or the
line contactor opens without selecting
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A320 Flight Deck Documentation(6)
