EFD1000 E5 Dual Electronic Flight Instrument (EFI) Install Manual
DOCUMENT # 900-00041-001 PAGE 80-226 REVISION D
© Copyright 2019 Aspen Avionics Inc.
7 Electrical Installation
7.1 Electrical Load Analysis
Perform an electrical load analysis to verify the aircraft complies with FAR 23.1351(a) using
the current draw of each installed component as determined from Table 7-1 below.
2.4 nominal @ 28Vdc
4.8 nominal @ 14Vdc
RSM – Remote Sensor Module
Current Draw included in EFD1000
E5
ACU – Analog Converter Unit
0.5 nominal @28Vdc
1.0 nominal @ 14Vdc
ACU2 – Analog Converter Unit 2
0.5 nominal @ 28Vdc
1.0 nominal @ 14Vdc
Current draw included in EFD1000
E5
Table 7-1: Current Draw
7.2 Electrical Installation
7.2.1 EFD1000 E5
A dedicated 7.5 amp pull type circuit breaker and switch or breaker/switch combination
for the EFD1000 E5 must be installed in a location accessible to the pilot while seated.
The breaker will be powered from the switched battery or essential bus. Label the switch
and/or breaker “ASPEN EFD” The switch must be rated for at least 7.5 amps continuous
duty. Record the location of circuit breaker and switch in the Instructions for Continued
Airworthiness.
7.2.2 ACU or ACU2 (optional)
A two (2)-amp pull type circuit breaker for the ACU/ACU2 must be installed in a location
accessible to the pilot while seated. Wire the power source from the avionics bus
(switched battery bus if no avionics bus exists). The breaker is to be labeled “ACU”.
Record the location of circuit breaker in the Instructions for Continued Airworthiness.
7.2.3 Miscellaneous Wiring
Use of MIL-C-27500 shielded wire and MIL-W-22759 single conductor wire is
recommended. All wires should be fabricated as shown in Section 9 keeping all grounds
as short as possible.
Wires and connectors must be clearly marked per FAR 23.1365(d).
Wires and wiring bundles must be secured in such a way to eliminate risk of mechanical
damage and minimize exposure to heat and fluids per FAR 23.1365(e).
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