Eclipse 500 System Manual page 227

Section 9. Climate Control
DEHUMIDIFICATION
When DEHUMID is set to ON, humidity is removed from the cabin using the air
conditioning system. The default setting at power-up is OFF. When set to ON the air
conditioning continually cycles as follows: On for one minute and then off for three
minutes.
9.5.4 Pressurization
GENERAL
In conjunction with the flow control valves and the cabin altitude pressure sensor, the
Cabin Pressure Control Sub-System regulates and maintains the cabin
pressurization to a scheduled pressure level.
Bleed air flows into the cabin at a constant rate as determined by the position of the
flow control valves. Aircraft pressurization is controlled by regulating the rate at which
air escapes from the cabin via outflow valves.
The pressurization system consists of the following components:
Pressurization control
Primary outflow valve
Secondary outflow valve
Cabin dump switch
Cabin pressure sensor (integral to primary outflow valve)
OUTFLOW VALVES
The primary and secondary outflow valves control pressurization and over and under
pressure protection by regulating the exhaust flow of air from the cabin into the aft
fuselage compartment and then overboard.
aft pressure bulkhead under the cabin baggage compartment floor and equally divide
exhaust airflow. The outflow valves do not require electrical power to operate.
Version 2.0 April 2007
Figure 135. Secondary and Primary Outflow Valves
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Eclipse 5OO Systems Manual
Both outflow valves are located on the
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