Textron Cessna Grand Caravan Ex 208B Pilot's Operating Handbook And Faa Approved Airplane Flight Manual page 722

SECTION 9 - SUPPLEMENTS CESSNA
SUPPLEMENT 1 MODEL 208B 867 SHP
GARMIN G1000
AIRPLANE SYSTEMS AND DESCRIPTIONS
(Continued)
TKS ICE PROTECTION SYSTEM OPERATION,
INDICATION AND MESSAGING
(Continued)
The operational state of the TKS ice protection system may be
monitored within the pilot's and copilot's PFD in the G1000 system.
System status is constantly monitored and feedback is provided
through various annunciations displayed in the annunciator window,
located to the right of the vertical speed tape of each pilot's PFD, refer
to Figure S1-11.
TKS SYSTEM ANNUNCIATIONS
Figure S1-11
When the system is turned on using the PRIMARY mode switch, by
selecting either NORM or HIGH the white A-ICE NORM or white A-ICE
HIGH advisory message appears in the annunciation window. The
appropriate white message, A-ICE NORM or A-ICE HIGH, will remain
displayed independent of system operational conditions or status. The
advisory message is not active in the BACKUP mode.
The amber A-ICE PRESS HI annunciator is triggered by the high
pressure sensor located on the system equipment/tank assembly. If the
amber A-ICE PRESS HI annunciator is triggered, the system fluid filters
should be replaced.
Activation of the amber A-ICE FLUID LO annunciator means a low fluid
level condition exists and that at least 20 minutes of ice protection fluid
endurance remains when the system is operated in NORM mode.
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FAA APPROVED
208BPHCUS-S1-00
S1-70 U.S.