T-45C TS, ADV & IUT ENG-27/ENG-28
Engineering Review
5.
ECS controls, switches and indicators
Sg 10, fr 34
ECS Controls Switches
a.
Cockpit air condition knob positions
and Indicators
(1) OFF: deactivates air conditioning
pressurization system and opens RAM air
valve
(2) NORMAL
(a) Directs 60% air to body sprays
(b) Directs 40% air to canopy/windscreen
(3) DEFOG
(a) Directs 60% air to canopy sprays
(b) Directs 40% air to body sprays
(4) MAX DEFOG: provides additional hot air to
defog ducts
b.
CABIN TEMP selector: aft of IFF provides
automatic and manual adjustment of cockpit
temperature control
c.
CABIN ALT warning light: provides indication of
air conditioning failure
(1) Overpressure to CAU
(2) CAU outlet temperature in excess of 500
degrees F
(3) CAU inlet temperature in excess of 250
degrees F
(4) Cabin altitude above 24,000 +/- 500 feet
d.
AVIONICS HOT caution light illuminates only
when on the ground and air temperature in the
avionics cooling duct exceeds 67 degrees C
(153 +/- 5 degrees F)
(9-98) Original
Page 27-98
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