Eclipse 500 System Manual page 228

Section 9. Climate Control
The outflow valves provide three pressure limit functions:
Cabin altitude .......................................................................... 13,000 feet +/- 1500 feet
Positive differential pressure ......................................................Primary OFV – 8.6 PSI
Negative differential pressure ............................................................................-.04 PSI
PRESSURIZATION CONTROL
Three pressurization modes can be selected on the pressurization synoptic:
AUTO
MANUAL
CABIN ALT HOLD
In AUTO mode, the landing altitude can be set automatically using the destination
airport programmed in the FMS, or set manually. Cabin rate of climb or descent is
normally controlled between 400 and 700 fpm. Cabin pressure is controlled
automatically based on a schedule to meet the following parameters:
In the MANUAL mode, cabin altitude and cabin rate of climb are selected on the
pressurization synoptic. The pressurization system regulates to the selected cabin
altitude and cabin rate of climb.
The CABIN ALT HOLD mode maintains the present cabin pressure altitude in the
event of a pressurization controller failure or electrical signal loss. When manually
selected by the pilot, a CABIN ALT HOLD MODE status message appears.
If primary pressurization control fails the backup controller automatically holds the
current cabin altitude and a CABIN ALT HOLD MODE advisory message appears.
Should the cabin remain pressurized on the ground a CABIN PRESS ON GROUND
caution message appears and the cabin must be depressurized through the
activation of the cabin DUMP switch.
208
Airplane Altitude Cabin Altitude
41,000 feet 8,000 feet
20,000 feet 2,500 feet
1,500 feet Sea Level
Copyright © — Eclipse Aviation Corporation
Eclipse 5OO Systems Manual
Secondary OFV – 8.7 PSI
Version 2.0 April 2007