PNEUMATICS
AIR CONDITIONING
AND PRESSURIZATION
AIRPLANE
O
PERATIONS
MANUAL
2-14-15
Page
14
Code
02
REVISION 41
Copyright © by Embraer. Refer to cover page for details.
PRESSURIZATION INDICATION ON EICAS
1 - CABIN ALTITUDE INDICATION
− Displays cabin altitudes, regardless of the operating mode.
− Ranges from – 1500 to 37000 ft, with a resolution of 100 ft.
Cabin altitude range (ft)
Cabin altitude
indication color
Normal mode
operation
High altitude
takeoff and landing
mode operation
(HIGH ALT mode) *
Green -1500 to 8300 -1500 to 8300
Amber 8400 to 9900 8400 to 14400
Red 10000 to 37000 14500 to 37000
2 - DIFFERENTIAL PRESSURE INDICATION
− Displays the differential pressure between the cabin interior and
the outside, regardless of the operating mode.
− Ranges from – 0.5 to 10.0 psi, with a resolution of 0.1 psi.
− Green: from 0.0 to 7.9 psi.
− Amber: from – 0.3 to – 0.1 psi and from 8.0 to 8.3 psi.
− Red: from – 0.5 to – 0.4 psi and from 8.4 to 10.0 psi.
3 - CABIN RATE OF CHANGE INDICATION
− Displays the cabin rate of change, regardless of the operating
mode.
− Ranges from –2000 to 2000 ft/min, with a resolution of 50 ft/min
(for EICAS versions up to 18.5).
− Ranges from –4000 to 4000 ft/min, with a resolution of 50 ft/min
(for EICAS versions 19 and on).
− Green full range.
− For rates out of range the indication is replaced by amber
dashes.
NOTE: (*) Only for airplanes equipped with HIGH ALT mode.
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