T-45A UJPT, E2-C2, ADV, & IUT Eng-17
ECS/Pressurization System & OBOGS
6.
CAU turbine
Overlay 6
CAU Turbine
a.
Further cools air received from
secondary heat exchanger by
expansion through turbine
b.
Airflow through the turbine drives the
CAU compressor
7.
Temperature control valve: controls final
Overlay 7
conditioned air temperature by mixing cold
Temperature Control Valve
air from CAU turbine with hot airflow path
from MPRSOV
8.
Water extractor: reduces water content of
Overlay 8
air distributed to cockpit air distribution and
Water Extractor
canopy defog systems
a.
Water is drained to inlet duct of
secondary heat exchanger
9.
Cockpit air distribution
Overlay 9
Crew Ventilation Ducts
a.
Ram air and inducer shutoff valves
operate automatically by proximity
switches on landing gear
(1) Ram air valve: closes during
normal operation when weight-on-
wheels (WOW) switch senses that
aircraft is airborne
10. Canopy defog
Overlay 10
Canopy Defog Ducts
a.
Receives conditioned air from air
conditioning system and engine
compressor air during maximum defog
b.
Distributes conditioned air through
canopy defogging ducts
Page 17-6
(8-03) Original
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