page 126
July 01/2008
Effectivity: 914 Series
Edition 2 / Rev. 0
d04282
INSTALLATION MANUAL
BRP-Rotax
19.4.14) Battery
See Fig. 69.
■ CAUTION: To warrant reliable engine start use a battery of at least 16 Ah
capacity (depending on the type and specification we recom-
mend 18 Ah).
19.4.15) Relay
See Fig. 69.
19.5) Internal consumer of electric power
▲ WARNING: The power consumption of extra loads has to be limited to the extent
that the internal need of power (fuel pumps, TCU, servo etc.) is always
covered.
Refer to graph (current output over speed) of the integrated generator
and the external alternator.
item current consumption
fuel pump (main) ........................... max. 3 A
fuel pump (stand by) ..................... max. 3 A
TCU
(1
........................................... max. 0,3 A
servo motor ................................... max. 1 A
warning lamp
(2
............................. approx.0,25 A
caution lamp
(2
.............................. approx.0,25 A
sum
(3
........................................... ~ 8 A
(1
internal power consumption, without servo motor and lamps
(2
standard value, actual value up to aircraft manufacturer
(3
without electric starter and start relay
A complete electrical load analysis covering all installed loads must be calculated by the
aircraft manufacturer.
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