Page 1-4
G300 Installation Manual –Installation Overview
Revision A
190-00921-01
1.4.4
Environmental Specifications
Refer to the applicable environmental form (Table 1-4) for a complete list of environmental
characteristics.
Table 1-4. G300 LRU Environmental Forms
Document
Garmin Part Number
GMU 44 Environmental Qualification Form
005-00164-31
GTP 59 Environmental Qualification Form
005-00191-97
1.4.5
Cooling Requirements
•
No cooling air is required for the GDU 37X
•
No cooling air is required for the GMU 44
•
No cooling air is required for the GSU 73, however the GSU 73 should be mounted in a location
that provides adequate airflow to comply with the maximum outer case temperature listed in
Section 4.
NOTE
Avoid installing the G300 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 43.13-2A.
1.5
Mounting
Refer to Section 2 through Section 6 for specific mounting instructions for each component of the G300,
and to Appendix A for Outline & Installation Drawings.
It may be necessary to mount the GSU 73 and/or the GMU44 remotely due to spacing/accessibility
concerns, or due to weight/balance requirements.
