Compass Safe Distance - Garmin G5 Installation Manual

3.4.5 Placards and Labels
The new circuit breaker installed for the G5 unit must be labeled as noted in the interconnect drawing in
section 4.6.
3.4.6 Cable and Wiring Considerations
Wire selection should be in accordance with AC 43.13-1B Chapter 11, Sections 5 through 7. Wire
marking should be conducted in accordance with AC 43.13-1B Chapter 11 Section 16. Harness
connectors should be marked in accordance with AC 43.13 Chapter 11 Section 17. Wiring should be
installed in accordance with AC 43.13-1B Chapter 11, Sections 8 through 13. Use the following
guidelines to prevent damage to the aircraft and systems:
•
Do not route the wire harness near flight control cables, high electrical capacity lines, high-energy
sources or fuel lines.
•
Locate the wire harness in a protected area of the aircraft.
•
Make sure the wire harness does not come in contact with sources of high heat or be routed
adjacent to RF coaxial cables.
•
Make sure there is ample space for the wire harness and mating connectors.
•
Avoid sharp bends.
3.4.7 Cooling Requirements
While no forced cooling air is required for the G5, it is highly recommended that the air behind the panel
be kept moving (by ventilation or a fan). Units tightly packed in the avionics stack heat each other
through radiation, convection, and sometimes by direct conduction. Even a single unit operates at a much
higher temperature in still air than in moving air. Fans or some other means of moving the air around
electronic equipment are usually a worthwhile investment.
NOTE
Avoid installing LRUs near heat sources. If this is not possible, ensure that additional cooling is
provided. Allow adequate space for installation of cables and connectors. The installer will
supply and fabricate all of the cables. All wiring should be in accordance with FAA AC 43.13-1B
and AC 43.13-2B.

3.4.8 Compass Safe Distance

After reconfiguring the avionics in the cockpit panel, if the unit is mounted less than 12 inches from the
compass, recalibrate the compass and make the necessary changes for noting correction data.
3.4.9 Shield Termination Considerations
For G5 installations utilizing the RS-232 interface from a GTN6XX/7XX or GNS4XXW/5XXW,
terminate the shield to the G5 connector backshell as shown in Figure 4-8 and Figure 4-9.
Garmin G5 Electronic Flight Instrument Part 23 AML STC Installation Manual
Page 20 of 53
190-01112-10
Rev. 2