Pilot's Operating Handbook
Section 7
Description
Edition 0 - March 05, 2019
Rev. 1
Page 7.14.5
Windshield deicing
The windshields are deiced electrically by integrated heating resistors. The system
includes two controllers and two heat probes embedded in each windshield. They are
operated by the WINDSHIELD switch.
When WINDSHIELD deice system is activated either manually or automatically, the
controllers supply the heating resistors, the windshield temperature is controlled via
heat probes. When the temperature reaches 45°C (113°F), the controllers cut the
electrical supply to the heating resistors and resume supply when the temperature
falls below 30°C (86°F). The cycle continues as long as the system is activated
.
In the event of failure of probe 1, the controller receives the temperature data from
probe 2. The electrical supply to the heating resistors is cut when the windshield
temperature reaches 56°C (133°F). In that case, the windshield is no longer heated,
the pilot can reset the system by setting the WINDSHIELD switch to OFF, then to ON.
The table hereafter gives the status light colors corresponding to the state of the
system.
System state
Status lights
OFF
ON (AUTO mode)
ON (MAN mode)
PIM - DO NOT USE FOR FLIGHT OPERATIONS