Gmu Class Restrictions; Gps Source Limitations - Garmin GI 275 Installation Manual

The Main EIS page can display up to four strip gauges along with a CHT/EGT/TIT graph and two digital
readout gauges. Refer to Section 5.6.4 and Appendix F for more information on gauge layout
requirements.
If an oil temperature, oil pressure, or fuel pressure sensor is being replaced, the GI 275 sensor must use the
same port(s) as the original sensor, unless otherwise specified.
The GI 275 EIS does not currently support aircraft with:
• Turbine engines
• Radial engines
• Engines with FADEC or electronic ignition systems
• CDT, IAT, DIFF engine indications for more than one inter-cooler per engine
• Indications for more than two ammeters per engine (alternator amps, battery charge/discharge)
• Indications for more than two voltmeters per engine (bus volts, battery volts)
• Engine turbochargers that have an oil system separate from the engine oil system and have
turbocharger oil pressure or temperature gauge(s)
The Prop Sync Wheel is limited to conventional twin-engine aircraft and prohibited in centerline thrust
aircraft (e.g., Cessna Skymaster).
The GI 275 Percent Power display is prohibited from replacing the Cirrus SR22 horsepower display in all
models where the existing horsepower gauge is used to control the engine per the POH.
2.1.5.1 Engine Adapter
Only one engine adapter per engine may be installed.
GEA 24 installations are limited to single and twin reciprocating engine aircraft with a gross takeoff
weight of 6,000 lbs or less and a service ceiling of 32,000 feet or less (Class I & II). The GEA 24 must be
mounted remotely and cannot be installed within the engine compartment or areas with water or fluids.
The GEA 24 cannot be interfaced to resistive fuel quantity floats in twin-engine aircraft (i.e., Class II) in
some installations. Refer to the aircraft model notes in Table D-1.
GEA 110 installations are limited to single and twin reciprocating engine aircraft with a gross takeoff
weight of 12,500 lbs or less and a service ceiling of 41,000 feet or less (Class I, II & III). Refer to
Section 4.7.2 for possible installation locations for GEA 110.
EIS units may not share a GEA 110/24 interface with G500/600 TXi or G3X systems, respectively. If using
a GI 275 for EIS, then the EIS interface may only be connected and displayed on the GI 275 system, and
may not be connected or displayed on TXi or G3X systems.
2.1.5.2 Pressure Sensors
Brass body pressure sensors are not approved for installation in aircraft that have an operational ceiling
greater than 32,000 feet. Refer to Figure 1-20 for image and Table C-20 for part numbers.
2.1.6

GMU Class Restrictions

The GMU 11 Magnetometer is limited to single and multi-engine aircraft with a gross takeoff weight of
6000 lbs or less (i.e., Class I & II aircraft). The GMU 44B Magnetometer is approved for all aircraft on the
STC AML.
2.1.7

GPS Source Limitations

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Rev. 11
GI 275 Part 23 AML STC Installation Manual
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