Learjet 60 - Wing Anti-Ice; Wing Anti-Ice System (Figure 6-2)

Pilot’s Manual Learjet 60
6-6 PM-123
Change 6
WING ANTI-ICE SYSTEM
Figure 6-2
WING ANTI-ICE
The wing anti-ice system utilizes engine bleed air directed through dif-
fuser tubes in each wing leading edge. The heated air is distributed to
the wing root and leading edge and then allowed to exit into the center
wing/wheel well area. The system consists of wing diffuser tubes, a
WING HT caution light, two thermoswitches (one underheat sensor
and one overheat sensor), a wing temperature sensor, an anti-ice shutoff
and pressure regulator valve, a bleed air bypass valve on each engine, a
WING
HT
W
I
N
G
T
E
M
P
STAB
WING
HEAT
OFF
Shutoff &
Pressure Regulator
Bleed Air
Shutoff Valve
Bleed Air
Bypass Valve
Temperature
Sensor
LP Bleed Air
(from engine)
HP Bleed Air
(from engine)
HP Bleed Air
(from LH engine)
Mixed Bleed Air
(from LH engine)
To Other
Systems
Underheat
Thermoswitch
Overheat
Thermoswitch
When STAB WING HEAT Switch is ON,
connection will be made.
Bleed Air
Mix Valve
Change 6