EFD1000 E5 Dual Electronic Flight Instrument (EFI) Install Manual
DOCUMENT # 900-00041-001
PAGE 52-226
REVISION D
© Copyright 2019 Aspen Avionics Inc.
6.7
Cooling
The EFD uses an integral fan for cooling. The area near the fan must be unobstructed to
permit maximum airflow through the unit. Venting and cooling air circulating behind the EFD
will improve heat dissipation and may improve equipment reliability, and is therefore a good
installation practice. The RSM, ACU, and Configuration Module have no cooling requirements.
6.8
EFD Installation
Mechanical installation of the EFD requires installing the included mounting bracket,
connecting a braided bonding strap between the EFD and panel, and installing pitot and static
connections to the two keyed quick release pressure fittings.
NOTE: To avoid damage to the equipment, do not place the EFD Display face down on the knobs.
6.8.1
EFD Mounting Location
The EFD must be mounted approximately centered in the instrument panel per 14CFR
23.1321(d). If the two existing instrument holes that contain the attitude indicator and
direction indicator are not exactly centered, but are the closest instruments to the center,
then that position is acceptable for mounting the EFD.
The EFD can be mounted on the non-pilot (typically right side) side of the instrument
panel if it is not for use by any required pilot during takeoff, initial climb, final approach,
and landing. Backup instruments are required on the pilot side only. See 14CFR 23.1311
and 14CFR 23.1321.
NOTE: Modification to the existing instrument panel is not authorized under this STC. Any
modification must be approved separately.
Figure 6-1: EFD Mounting Location
6.8.2
Surface Mounting the EFD as per Figure 6-2
The pre-drilled holes in the mounting bracket support both standard 3” round instrument
holes, and 3ATI square cutouts. The bracket is centered on the upper instrument hole.
EFD
Typical EFD Location