Overview
The function of the ice and rain protection system is to prevent ice from occurring on critical components and areas of the aircraft. Two ice detectors alert the flight crew of icing conditions. The wing leading edges and the engine intake cowls are heated using engine bleed air. The windshields, windows, and air data probes are heated using electrical power. The ANTI ICE synoptic display provides an overview of status of the pneumatically operated anti-icing systems.
The anti-ice system controls hot air supplied from the engines to the wing anti-ice system. If there is a loss of one hot air supply, the anti-ice system has a crossflow function. This crossflow function supplies the opposite side wing anti-ice system from the remaining air supply.
The temperature of the air is controlled by the temperature sensors, the integrated air system (IAS) controller, and the valves.
