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The system can be filled or drained from the service panel under the fuselage. Indicators on the
forward attendant’s panel and the aft service panel show how much water is in the water tank.
WASTEWATER SYSTEM
Applicable to: ALL
Wastewater from the galleys and from the sinks in the lavatories, drains overboard through two
anti-iced drain masts.
The forward mast drains wastewater from the forward cabin; the aft mast drains it from the aft cabin.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
WATER / WASTE
DESCRIPTION
A318/A319/A320/A321 FLEET DSC-38-10 P 5/10
FCOM 19 AUG 10
Differential pressure discharges the wastewater in flight, and gravity does so on the ground.
TOILET SYSTEM
Applicable to:
Differential pressure forces waste from the toilet bowls into the waste storage tank. On ground, and
at altitudes below 16 000 ft , a vacuum generator produces the necessary pressure differential.
Clear water from the potable water system flushes the toilets.
A flush control unit, within each toilet, controls the flush sequence.
In case of an electrical failure in the flush valve, personnel can use a manual flush control under the
toilet bowl.
The Vacuum System Controller (VSC) furnishes operational information, such as the waste level in
the storage tank, to the Flight Attendants’ panel, and maintenance information and a test program to
the Centralized Fault Display System.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
WATER / WASTE
DESCRIPTION
A318/A319/A320/A321 FLEET DSC-38-10 P 6/10
FCOM 19 AUG 10
Note: To restart an inoperative toilet, a Flight Attendant may attempt to reset the VSC as follows :
VACUUM SYS C/B (on VU, aft cabin C/B panel) . . . . . . . . PULL for 30 s .
VACUUM SYS C/B (on VU, aft cabin C/B panel) . . . . . PUSH
The waste tank has a usable capacity of 170 l .
Ground personnel services the waste tank via a single service panel under the fuselage.
A manual shut-off valve isolates an inoperative toilet.
ARCHITECTURE
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
WATER / WASTE
DESCRIPTION
A318/A319/A320/A321 FLEET DSC-38-10 P 7/10
FCOM 19 AUG 10
SCHEMATIC
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
WATER / WASTE
DESCRIPTION
A318/A319/A320/A321 FLEET DSC-38-10 P 8/10
FCOM 19 AUG 10
TOILET SYSTEM
Applicable to:
,
,
MSN,,,,
Differential pressure forces waste from the toilet bowls into the waste storage tank. On ground, and
at altitudes below 16 000 ft , a vacuum generator produces the necessary pressure differential.
Clear water from the potable water system flushes the toilets.
A flush control unit, within each toilet, controls the flush sequence.
The Vacuum System Controller (VSC) furnishes operational information, such as the waste level in
the storage tank, to the Flight Attendants’ panel, and maintenance information and a test program to
the Centralized Fault Display System.
Note: To restart an inoperative toilet, a Flight Attendant may attempt to reset the VSC as follows :
VACUUM SYS C/B (on VU, aft cabin C/B panel) . . . . . . . . PULL for 30 s .
VACUUM SYS C/B (on VU, aft cabin C/B panel) . . . . . PUSH
The waste tank has a usable capacity of 170 l .
Ground personnel services the waste tank via a single service panel under the fuselage.
A manual shut-off valve isolates an inoperative toilet.
ARCHITECTURE
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
WATER / WASTE
DESCRIPTION
A318/A319/A320/A321 FLEET DSC-38-10 P 9/10
FCOM 19 AUG 10
SCHEMATIC
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
WATER / WASTE
DESCRIPTION
Intentionally left blank
A318/A319/A320/A321 FLEET DSC-38-10 P 10/10
FCOM 19 AUG 10
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
WATER / WASTE
ELECTRICAL SUPPLY
A318/A319/A320/A321 FLEET DSC-38-20 P 1/2
FCOM 19 AUG 10
BUS EQUIPMENT LIST
Applicable to: ALL
NORM EMER ELEC
AC DC DC
BAT
AC
ESS
DC
ESS HOT
POTABLE WATER SYS GND/FLT
WATER HEATER AC2
WATER DRAINING GND/FLT
VACUUM GENERATOR AC2
PRESSURIZED WATER SYS AC2
FLUSH CONTROL UNITS GND/FLT
VACUUM SYS CONTROLLER GND/FLT
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
WATER / WASTE
ELECTRICAL SUPPLY
Intentionally left blank
A318/A319/A320/A321 FLEET DSC-38-20 P 2/2
　
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