Systems Guide

Aerosoft
Airbus A320/A321
SYSTEMS
Systems guide
Vol
4
04-03-51
28 October 2014
 The Yellow Electric Pump pb (ELEC PUMP) is dark by default, indicating it is not active. When pushed ON
will show and the pump will energize. FAULT will show if there are problems, check the ECAM for more
details. Note the Yellow system will pressurize the flight controls (via the PTU) when the main engines
are off!
 The Power Transfer Unit (PTU) is default dark and in AUTO mode. When differential pressure is detected
it will pressurize the low pressure system. When clicked OFF will show and the Green and Yellow systems
will not be connected. FAULT will show if there is a problem, the ECAM will display the problems.
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 provide 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.