T-45A UJPT, E2-C2, ADV, & IUT Eng-17
ECS/Pressurization System & OBOGS
B.
Cockpit pressurization system--major
Sg 1, fr 3
components
(2 overlays)
1.
Pressure control valve: located on fwd
cockpit bulk-head behind instrument panel
2.
Discharge valves (2): one collocated with
the pressure control valve, the other aft
cockpit on bulkhead behind seat
COCKPIT PRESSURIZATION SYSTEM-
3.
Safety relief valves: located on cockpit
SIMPLIFIED
bulkhead
4.
Canopy seal: cemented to the seal
Overlay 1
retaining channel which surrounds the
Discharge Valves
canopy
C.
Avionics equipment cooling system--major
Overlay 2
components
Safety Relief Valve
1.
Pressure control valve: located on fwd
cockpit bulk-head behind instrument panel
2.
Discharge valves (2): one collocated with
the pressure control valve, the other aft
cockpit on bulkhead behind seat
Sg 2, fr 1
NOTE: Same valves as in cockpit
Lesson Organization
pressurization system.
Sg 2, fr 2 (11 overlays)
II.
ECS operating characteristics 1.4.15.2.1
A.
Air conditioning system: the ECS system taps
air from a fifth-stage bleed air port. Airflow
through the air conditioning system is controlled
by a solenoid-operated main pressure regulator
and shutoff valve (MPRSOV)
ENVIRONMENTAL CONTROL SYSTEM
1.
MPRSOV
a.
Divides airflow into two separate paths
Overlay 1
MPRSOV
Page 17-4
(8-03) Original
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