ICE AND RAIN PROTECTION
Description
Aircraft Operations Manual
11.1
S1
PAGE
19
Jun01/17
A/C 160
−
299
A9923
A
L/R SIDE windshield heating switch.
NORM Used for defogging.
HIGH Used for de
−
icing.
OFF
Resets controller if tripped.
NORM must be used for 7 minutes before HIGH
is selected. When HIGH is selected on ground
NORM power will be applied until WoW switch
senses airborn.
L/R SIDE/FRONT light (amber).
Will come on when an overheat or controller fault
occurs.
L/R FRONT windshield heating switch.
Regulated power is applied to front windshield
when set to ON.
L/R PROP light (ambers).
Will come on when a fault is detected in an acti-
vated system.
L/R PROP de
−
ice switch.
When set to ON a timer/monitor initiates heating
cycles as below for each pair of symmetrical pro-
peller blades and illuminates the PROP DE
−
ICE
light.
Heating cycles:
−
NORM
Power on 11 sec, power off
79 sec.
−
MAX
Power on 90 sec, power off
90 sec.
A
PROPELLER AND WINDSHIELD
DE
−
ICE PANEL
Fig. 8 Propeller and windshield de
−
ice systems
−
controls and indicators
