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When released out:
· Cancels aural warning
· APU shuts down
· Squib is armed
· Squib light illuminates
· Fuel LP valve is closed
· APU bleed and crossbleed valves are
closed
· APU generator is deactivated
·
APU Fire Light
APU Fire light illuminates independently of
switch position when the APU fire warning is
activated.
APU Agent Switch
Arms by pushing the APU FIRE switch. SQUIB
light illuminates. When the AGENT switch is
pushing momentarily:
· Bottle is discharged
· DISCH light illuminates
·
APU TEST Switch
Tests fire detection and extinguishing system
operation.
Does not cause automatic shutdown of
APU.
· Activates ECAM APU FIRE warning
· Activates continuous chime
· Illuminates the following:
· Flashing MASTER WARN
lights
· APU FIRE switch on APU
FIRE Panel
· SQUIB light
DISCH light
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Flight Deck Documentation AIRBUS A320
12.11.06 Ralf Anderseck Seite 182.2.7.
Hydraulic Control & Fuel Panels ( A320 )
Hydraulic Control Panel
ENG 1 & 2 Pump Switch & Light
· Switch
· ON The
Pump Pressurizes
the system when the Engine is
running.
· OFF The
Pump is
depressurized. Power
generation stops.
· Light
Illuminates amber to indicate:
· Reservoir low level
· Reservoir overheat
· Reservoir low air pressure
· Pump low pressure
Extinguishes when the ENG PUMP
switch is selected OFF, except during
an overheat; in which case, the light
remains on as long as the overheat is
present.
RAT MAN ON Switch ( red Guard )
When pushed, the RAM Air Turbine extends.
The RAT extends automatically in flight with a
loss of AC buses 1 and 2.
Blue ELEC Pump Switch & Fault Light (
Guarded )
· Switch
· AUTO The
Pump is
energized, provided AC power
is available:
· In flight
· On the ground,
provided one engine is
running or the BLUE
PUMP OVRD switch
has been pressed.
· OFF The
Pump is deenergized.
· Fault Light Illuminates
amber to
indicate:
· Reservoir low level
· Reservoir overheat
· Reservoir low air pressure
· Pump low pressure
Extinguishes when the BLUE ELEC
PUMP switch is selected OFF, except
during an overheat; in which case, the
light remains on as long as the
overheat is present.
PTU Switch & Fault Light
· Switch
· AUTO The
reversible motor
pump is armed and both
yellow and green electrohydraulic
valves are open. The
PTU runs automatically when
the differential pressure
between the green and yellow
systems is more than 500 psi.
· OFF Both
green and yellow
PTU electrohydraulic
valves
are energized and close.
Power transfer stops.
· Fault Light Illuminates
amber to
indicate:
· Green or yellow reservoir
overheat
· Green or yellow reservoir low
air pressure
· Green or yellow reservoir low
level
Extinguishes when the PTU switch is
selected OFF, except during an
overheat; in which case, the light
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Flight Deck Documentation AIRBUS A320
12.11.06 Ralf Anderseck Seite 19remains
on as long as the overheat is
present.
Yellow ELEC Pump & Fault Light
· Switch
· ON The
Pump is energized.
If electrical power is removed,
the pump remains deenergized
at the next electrical
power application.
· OFF The
Pump is deenergized.
It is automatically
energized when the forward or
aft cargo door lever is
operated. During cargo door
operation, all other yellow
system users are inhibited,
except for the No. 2 engine
thrust reverser and the brake
accumulator.
· Fault Light Illuminates
amber to
indicate:
· Reservoir low level
· Reservoir overheat
· Reservoir low air pressure
· Pump low pressure
　
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