AIRPLANE
OPERATIONS
MANUAL
EQUIPMENT
AND FURNISHINGS
REVISION 27
2-02-30
Page
1
Code
01
WATER AND WASTE
Water service is provided to the washbasin for crew members and
passenger hygiene.
The waste system consists of a self-contained recirculating flushing
toilet.
WATER
The water supply consists of a tank, a faucet, drain valves and
required tubing.
The faucet is installed on the washbasin and supplies water from the
tank when the valve is pressed.
A lever beside the faucet actuates a valve to drain accumulated
washbasin water into the atmosphere. Draining is performed by gravity
on the ground or by differential pressure while in flight. A heater at the
end of the drain line prevents its obstruction by ice formation. The
heater is activated whenever the DC BUS 1 is energized.
The wash basin drain line is also connected to the exterior by a muffler
providing ventilation of the lavatory.
A water service control panel on the lower rear right side of the wing-
to-fuselage fairing allows the supply of water to the tank and to draining
it, if necessary.
WASTE
The waste system consists of an electrically-operated self-contained
recirculation toilet unit, which collects and stores human waste in an
internal holding tank. Adequate chemical products are used to disinfect
and deodorize the waste holding tank.
A vent line connecting the waste holding tank to the exterior performs
its ventilation (odors exhaust) by means of differential pressure.
Toilet flushing is initiated by pressing and releasing the flush button
adjacent to the toilet. This button actuates a motor-driven pump and
filter, which delivers flushing fluid for a pre-timed interval.
A restrictor at the bowl bottom prevents waste material return when it is
carried directly to the tank.
A waste service panel on the lower rear right side of the fuselage is
equipped with a control cable, a waste drain valve and a rinse nipple
with cap, and allows the waste system to be serviced.
To Next Page
Loading...
