BOMBARDIER Challenger 601-3A CL-600-2B16 Pilot Training Manual page 300

PRESSURE
RELIEF
VALVE
COWL
ANTI-ICE
VALVE
Controls and Indicators
The cowl anti-icing system is controlled by a
pair of split-legend switchlights on the anti-ice
panel located on the right side of the overhead
panel (see Figure 10-5 and Annunciator Panel
S e c t i o n ) . T h e s w i t c h l i g h t s a r e l a b e l e d
"COWL," "LEFT," and "RIGHT." The top por-
tion of each switchlight is amber and is la-
beled "FAIL"; the bottom is white and is
labeled "ON."
When the switchlight is pressed to the ON po-
sition, the associated valve(s) are deenergized
to the open position, and the white ON legend
illuminates. Pressing the switchlight again
energizes the valve(s) to the closed position
and extinguishes the ON legend.
The amber FAIL legend illuminates if the sys-
tem is selected on and the pressure switches
downstream of the shutoff valve detects in-
sufficient bleed-air pressure. When the system
is initially selected on, the FAIL light illumi-
nates momentarily until bleed-air pressure
CL-600-2B16 PILOT TRAINING MANUAL
PRESSURE
SWTCH
T/R
Figure 10-4. Cowl Anti-icing
FOR TRAINING PURPOSES ONLY
FlightSafety Canada
14TH STAGE
BLEED-AIR SOV
WING
ANTI-ICE
VALVE
Figure 10-5. Engine Anti-icing Controls
and Indicators
Lt é e
Lt d .
CL 601-3A/R 10-5