Eclipse 500 System Manual page 120

Section 6. Ice Protection
6.5.2 Defog
In the event of a failure of the windshield heat system, a defog system is available. It
is controlled from the ENVIR synoptic.
6.5.3 Pneumatic De-ice
The airplane is equipped with pneumatically operated neoprene de-ice boots
mounted on the leading edges of the wings and horizontal stabilizer. There is one
boot on each wing, separated into an inboard and outboard section; And also one
boot on each horizontal stabilizer.
De-ice boot inflation is activated by selecting ENG/WING on center switch panel. At
least one engine must be running for the system to operate since engine bleed air
inflates the boots.
An ENG/WING ICE PROT ON status message indicates both engine anti-ice and
wing de-ice are activated. Normal operation of the boot de-ice system is indicated on
the ICE protection synoptic by green leading edges on the wings and horizontal
stabilizer on the airplane graphic display. When the de-ice system is off, the leading
edges are black with a white outline.
The ACS controls the inflation/deflation cycle and monitors system pressure.
Pneumatic air is first routed to the inboard wing and horizontal stabilizer boots, then
to the outboard wing boots. Each cycle takes approximately one minute. When the
system is switched off, the current cycle is completed and the system turns off.
Bleed air from the engines is fed to a common de-ice manifold through pressure
regulating shut-off valves on each engine. A dual distribution valve in the de-ice
manifold directs pressurized bleed air into the boots, resulting in boot inflation that
breaks any ice accretion. After the boots are inflated, the dual distribution valve then
directs the pressurized air through an ejector nozzle within the manifold that creates
suction to deflate the boots and maintain the aerodynamic profile of the leading
edges.
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Figure 66. Leading Edge De-Ice Boot Location
Copyright © — Eclipse Aviation Corporation
Eclipse 5OO Systems Manual
Version 2.0 April 2007