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IFD5XX Installation Manual
600-00299-000
Page 54 of 198
Revision: 02
5.2 Equipment Location - Replacement Unit
If the IFD5XX is being installed as replacement unit on a previously approved IFR
installation, the existing installation location is acceptable and does not require any changes.
5.3 Angle of Regard
The IFD5XX should be mounted in a location where the viewing angle of the display does
not exceed the following angles:
From the Left: 80°
From the Right: 80
°
From the Top: 80°
From the Bottom: 60°
5.4 Unit Installation/Removal
The IFD5XX should be installed using 3/32-inch hex drive tool. The hex drive is inserted into
the hole in the front bezel.
5.5 External Cooling
The IFD5XX does not require external cooling, however, additional cooling may prolong
product life. A 5/8” diameter air fitting is provided in the rear of the IFD5XX mounting tray,
if forced air cooling is installed.
IFD5XX installations in a tightly packed avionics stack should consider installing an electric
avionics cooling fan. As a minimum, plan to leave space for clear intake and exhaust venting
when able. If a fan is installed, ensure the intake air flow to the fan is not located near the
exhaust of other fans or near other hot equipment.
In the event the system feels excessively hot or if an Overtemp Caution Advisory System
message is presented on the display, there are some diagnostic tools provided in the IFD5XX
to assist in finding more optimal cooling installations. In Maintenance Mode, select the
“Status” tab along to bottom edge of the display and then press the “Info” Line Select Key as
needed until “Temps” is displayed. Note the hottest source(s) on that page and supply that
information to Avidyne Technical Support to include both the source and the associated
temperature for follow-on guidance.
The metal bezel of the IFD5XX is intentionally designed to radiate heat away from the
internal components and out of the unit. This can have the effect of a bezel that may be
warm to the touch. This is considered normal. Note that the rubber bezel buttons will not
conduct this heat and should not be warm. This condition will be more noticeable on hot
days or during long ground runs.
5.6 Electrical Bonding
The electrical bonding between the IFD5XX tray and aircraft ground should be ≤ 10 milliohm.
5.7 Aircraft Considerations
Installing wires or antennas on a pressurized aircraft, composite aircraft, or with an aircraft
certification basis of Amendment 23-45 or later is beyond the scope of this manual and
requires additional installation approval, unless the aircraft model is listed on the STC AML.
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