CAE SimuFlite Citation Bravo, Pilot Training Manual

Page: 635 / 718

Miscellaneous
Citation Bravo
Developed for Training Purposes
5J-15
March 2009
Oxygen
System
Oxygen is available to the crew at all
times and to the passengers either
manually through cockpit control or
automatically if cabin altitude
exceeds 13,500 ± 600 ft.
The pressurization system normally
maintains an 8,000 ft cabin altitude;
therefore, supplemental oxygen is
used primarily as an emergency oxy-
gen supply, without which useful
consciousness becomes impaired
(Table 5J-A, page 5J-19).
Oxygen Cylinder
The Citation Bravo has an oxygen
cylinder below the right side of the
nose compartment.
The standard oxygen bottle capacity
is 64 ft
3
;
(Figure 5J-7).
The oxygen bottle assembly contains
a pressure reducing valve, shutoff
valve, and provisions for external
servicing through the filler port.
The shutoff valve, which is open,
and pressure regulator, which meters
line pressure to 70 ±10 PSI, controls
the flow of oxygen to the distribu-
tion system.
A fully charged bottle provides
approximately one hour of oxygen
for the crew and six passengers. To
compute duration for the actual
number of people aboard, assume
consumption at a rate of 4.3 liters
per minute per occupant and a usable
full bottle output of 1,750 liters
(Table 5J-B, page 5J-20).
Pressure Gauge
The oxygen bottle pressure gauge on
the right instrument panel
(Figure 5J-
8)
indicates cylinder pressure when
the system is charged, regardless of
the position of the shutoff valve on
the cylinder. Markings on the gauge
indicate the following pressure:
n
yellow - 0 to 400 PSI
n
green - 1,600 to 1,800 PSI
n
red-2,000 PSI
n
blowout relief - 2,500 PSI.
A fully serviced system should read
in the green arc between 1,600 and
1,800 PSI. The system must be ser-
viced when the gauge indicates out
of the green arc. If pressure drops
below 400 PSI, the bottle must be
purged, subject to hydrostatic test-
ing, before being refilled.
5J-7 5J-8