Systems Guide

A318/A319/A320/A321
Professional
SYSTEMS
Systems guide
Vol
4
04-03-52
11 July 2018
ICE AND RAIN PROTECTION
Using the ice and rain protection systems allow the unrestricted use of the aircraft in severe icing
conditions and heavy rain fall. Electrical heating is provided for flight compartment windows, probes, pitot
tubes, static ports and waste water drains (though the latter is not simulated). Hot bleed air heating is
provided for the engines nacelle leading edges and outboard leading edge of each wing.
Rain protection comes in the form of wipers on the front windshields and an optional rain repellent
system.
WING ANTI-ICE PROTECTION SYSTEM
To prevent ice buildup on the outboard wing slats, hot engine bleed air is sent into ducts on the wing
leading edge. The WING pb on the ANTI ICE overhead panel controls the system and this is displayed by
the wing anti-ice valve symbols on the ECAM BLEED system display.
PROBE / WINDOW ANTI-ICE PROTECTION SYSTEM
The probe heat computers provide automated
protection using electrical heating coils against
icing on the front windows, pitot tubes, static
ports, TAT probe and AoA probes. It can be
manually controlled (overriding the automated
systems) using the PROBE/WINDOW HEAT pb.
When the pb is not illuminated the system is
running in automated mode.
ENGINE ANTI-ICE PROTECTION SYSTEM
To prevent ice buildup on the engine nacelle leading edges, hot engine bleed air is used. It is manually
controlled by the PROBE/WINDOW HEAT pb. When engine anti-ice is selected engine idle speed will
increase and continuous ignition is automatically selected.
RAIN REMOVAL