Table 26.Flow Control Valve Functions - High/Low; Table 27.Flow Control Valve Automatic Shutoff Operation - Eclipse 500 System Manual

Section 9. Climate Control
FLOW CONTROL VALVES
Bleed air downstream of each heat exchanger is routed to an electrically-actuated
flow control valves located in the pylon. The flow control valves have two functions:
two-step flow control and shutoff.
The High or Low setting is automatically controlled by the ACS. In the event of a loss
of electrical power, the flow control valve fails to the LOW setting.
Low Flow
High Flow
The shutoff function is automatically controlled by the ACS, with manual shutoff
override from the cockpit AIR SOURCE switch.
Table 27. Flow Control Valve Automatic Shutoff Operation *
On ground
Engine shut down
Engine start
On ground
Engine running
On ground or in-flight
Engine running
No power to Flow Control Valve
In-flight
Engine running
In-flight
Engine shut down
On ground during engine shutdown
* NORM selected on AIR SOURCE Switch
Version 2.0 April 2007
Table 26. Flow Control Valve Functions — High/Low
Normal Position
Ground Idle
No Power
Cabin altitude exceeds 10,000 feet
Cabin rate of climb exceeds 2,500 fpm
L or R selected on the AIR SOURCE switch
Bleed air is available from only one engine
Cabin temperature control falls approximately 7 °F below the
selected temperature
DUMP is selected ON
Airplane Status
Copyright © — Eclipse Aviation Corporation
Eclipse 5OO Systems Manual
Flow Control Valve Position
Closed
Closed
Open
Open
Open
Closed
Closed for 10 seconds to stop potentially
contaminated air from entering cabin
195