Boeing 737-800 - Oxygen System Schematic

737 Flight Crew Operations Manual
Airplane General, Emergency
Equipment, Doors, Windows -
Systems Description
Boeing Proprietary. Copyright © Boeing. May be subject to export restrictions under EAR. See title page for details.
1.40.20 D6-27370-866-EGP
Oxygen System Schematic
OXYGEN MASK
LOW PRESSURE
HIGH PRESSURE
CONDITION: NORMAL
(4 MASKS)
SERVICE
(2 MASKS)
SWITCH
PRESSURE
BAROMETRIC
PORT
DISCHARGE
THERMAL
CYLINDER
OXYGEN
CREW
REDUCER
PRESSURE
CREW
ON
NORMAL
OXYGEN
PASS OXYGEN
PASS OXY
ON
PS1 X 100
OXY PRESS
20
15
10
5
0
(IN EACH SERVICE UNIT)
OXYGEN SOURCE
O
2
UNITS
(TYPICAL)
LAVATORIES
ATTENDANT STATIONS
O
2
PASSENGER SERVICE UNITS
O
2
September 15, 2016