Garmin SR20 GPS Receiver User Manual


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Cirrus Perspective
®
by Garmin – Cockpit Reference Guide for the SR20/SR22
190-00821-03 Rev. A
10
EIS
Flight
InstrumentsEIS
Nav/Com/
XPDR/AudioAFCSGPS Nav
Flight
PlanningProcedures
Hazard
Avoidance
Additional
Features
Abnormal
Operation
Annun/
AlertsAppendixIndex
TKS FIKI Anti-ice System
In the default tank selection mode (AUTO), the system assures the fluid level in
the two tanks is kept relatively even by periodically closing the tank with the lowest
level. The system uses the TKS fluid tank quantity to control the tank shut-off valves.
When the system is on and operating in AUTO mode, the shut-off valves close under
the following conditions:
• Theleftandrighttanktanklevelimbalanceisgreaterthan0.25gallons(low
tankwillbecloseduntillevelbalanceiswithin0.15gallons)
• Theuidquantityisempty(indicatedfromtheuidlevelsensorandlevel
switch)
• Theuidquantityisunreliable(amiscomparebetweenthelevelsensorandlevel
switch or an out of range level sensor value)
Manual tank mode allows the pilot to control either tank’s shut-off valve. Manual
may be selected by pressing the ANTI-ICE Softkey to access the second-level softkeys
LEFT, AUTO, and RIGHT.
• LEFT Softkey – opens left tank valve and closes right tank valve
• AUTO Softkey – returns to AUTO tank mode
• RIGHT Softkey – opens right tank valve and closes left tank valve
While operating in manual tank mode, only the selected/open tank’s quantity is
used for the range and endurance calculations.
Manual Tank Mode (Left tank selected)
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