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MANIFOLD
FIREWALL
VENT
L. WING TANK
L. WING
COLLECTOR
FUEL
RELAY
ENGINE DRIVEN
FUEL PUMP
MIXTURE CNTL.
TO
SELECTOR
VALVE
TO
GASCOLATOR
Serials 0002 thru 0277 before SB 22-73-01.
Serials 0278 and subs
and 0002 thru 0277 after SB 22-73-01.
FLAPPER
VALVE
FLAPPER
VALVE
SELECTOR
VALVE
Figure 7-10
Fuel System Schematic
June 2007
7-56 Information Manual
Section 7 Cirrus Design
Airplane Description SR22
The airplane may be serviced to a reduced capacity to permit heavier
cabin loadings. This is accomplished by filling each tank to a tab
visible below the fuel filler, giving a reduced fuel load of 23.5 gallons
usable in each tank (47 gallons total usable in all flight conditions).
Drain valves at the system low points allow draining the system for
maintenance and for examination of fuel in the system for
contamination and grade. The fuel must be sampled prior to each
flight. A sampler cup is provided to drain a small amount of fuel from
the wing tank drains, the collector tank drains, and the gascolator
drain. If takeoff weight limitations for the next flight permit, the fuel
tanks should be filled after each flight to prevent condensation.
• Note •
Serials 0002 and subsequent with optional EMax Engine
Monitoring after factory installation or after Service Bulletin SB
22-77-01: The following fuel system component descriptions
are the same as those listed for airplane serials 1602, 1644,
1663 and subsequent except:
• MFD functionality is enhanced by displaying fuel used, fuel
remaining, time remaining, fuel economy, and the addition of
Initial Usable Fuel page.
Refer to Avidyne FlightMax EX5000C Pilot’s Guide, P/N 600-00108-
000 Rev 04 or later for a more complete description of the MFD, its
operating modes, and additional detailed operating procedures for the
EMax option.
Fuel Selector Valve
A fuel selector valve, located at the rear of the center console,
provides the following functions:
• LEFT...................................Allows fuel to flow from the left tank
• RIGHT ............................ Allows fuel to flow from the right tank
• OFF ........................................Cuts off fuel flow from both tanks
The valve is arranged so that to feed off a particular tank the valve
should be pointed to the fuel indicator for that tank. To select RIGHT or
LEFT, rotate the selector to the desired position. To select Off, first
raise the fuel selector knob release and then rotate the knob to OFF.
June 2007
Information Manual 7-57
Cirrus Design Section 7
SR22 Airplane Description
Fuel Quantity Indicator
A dual reading 2¼” fuel quantity indicator is installed on the console
immediately forward of the fuel selector valve. The LEFT pointer
indicates left tank fuel quantity and sweeps a scale marked from 0 to
41 U.S. gallons in 5-gallon increments. The RIGHT pointer sweeps an
identical scale for the right tank. Each scale is marked with a yellow
arc from 0 to 14 U.S. gallons. The indicators are calibrated to read '0'
when no usable fuel remains. Each indicator also provides an output
signal to illuminate the FUEL caution light when the fuel quantity goes
below approximately 14 gallons in each tank. The fuel quantity
indications are derived from float-type fuel-level sensors installed in
each main tank and each collector tank. The indicator is internally
lighted. Serials 0002 through 1601, 1603 through 1643 and 1645
through 1662: 28 VDC for fuel quantity system operation is supplied
through the 5-amp ENGINE INST circuit breaker on Main Bus 1.
Serials 1602, 1644, 1663 and subsequent: 28 VDC for fuel quantity
system operation is supplied through the 5-amp FUEL QTY / HOBBS
circuit breaker on Main Bus 1.
• Note •
When the fuel tanks are 1/4 full or less, prolonged
uncoordinated flight such as slips or skids can uncover the
fuel tank outlets. Therefore, if operating with one fuel tank dry
or if operating on LEFT or RIGHT tank when 1/4 full or less, do
not allow the airplane to remain in uncoordinated flight for
periods in excess of 30 seconds.
June 2007
7-58 Information Manual
Section 7 Cirrus Design
Airplane Description SR22
Figure 7-11
4
Serials 0002 thru 1601,
1603 thru 1643, 1645 thru 1662.
LEGEND
1. Fuel Pump Switch
2. Fuel Quantity Gage
3. Fuel Selector Valve
4. Fuel Flow
3
2
1
SR22_FM07_2226
Fuel System Controls and Indicating (Sheet 1 of 2)
　
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