The AVC1 is an external voltage regulator/rec
Ɵ
fi
er
designed for use with single-phase permanent-magnet
alternators up to 20A in size. Over-voltage protec
Ɵ
on,
Charging System-fault and Low-voltage warning
output, and
fi
eld-adjustable charging voltage are
integrated into the AVC1 control package.
Case
- Ground
VOLT ADJ
- Voltage Regula
Ɵ
on Adjustment
CONFIG
- LV Warning Con
fi
gura
Ɵ
on
Terminals 1 & 2
- AC Input
Terminal 5
- Warning Output
Terminals 3 & 4
- DC Output (+)
Terminal 6
- Control Input
♦
For Duca
Ɵ
retro
fi
t, AVC1 may be installed with no
wiring changes. Otherwise, refer to Diagrams 1 & 2
(reverse) for suggested wiring con
fi
gura
Ɵ
ons.
♦
Disconnect ship’s ba
Ʃ
ery, Nega
Ɵ
ve (-) post
fi
rst.
♦
Mount the AVC1 &
fi
lter capacitor (if used) on the
fi
rewall or selected loca
Ɵ
on, terminal strip DOWN.
♦
Wire the AC input.
Connect Terminals 1 & 2 to the
two AC leads from the alternator/dynamo, using
the supplied wire terminals and heatshrink, if
needed. Note: there is no polarity in these wires.
♦
Wire the DC power (+) output.
Connect Terminals
3 & 4 to the posi
Ɵ
ve (+) post on the
fi
lter capacitor
(if used) and the aircra
Ō
bus at the output current
limiter(s) or panel circuit breaker.
Download the full AVC1 Technical Manual
for more detailed installation guidance:
www.BandC.com/AVC1install
M
ONDAY
-F
RIDAY
9:00 - 4:30 C
ENTRAL
The AVC1 provides warning output for Charging-
System Fault (CSF) and Low-Voltage (LV) condi
Ɵ
ons.
LV warning is user-selected to trigger at one of three
voltage thresholds. It may be disabled, also, if desired.
LV warning op
Ɵ
ons may be selected by
posi
Ɵ
oning two small
DIP switches behind
the machine screw
cap labeled “CONFIG”
on the side of the
AVC1 enclosure. The
factory preset is 12.7v.
LV Warning
Switch 1 Switch 2
Disabled DOWN
DOWN
12.7v DOWN
UP
13.0v UP
DOWN
13.3v UP
UP
LV warning-select DIP switches
♦
Wire the Warning Output.
Connect Terminal 5 to
appropriate EFIS input or the panel indicator light.
♦
Wire the Control Circuit.
Connect Terminal 6 to the
ba
Ʃ
ery/alternator master switch.
♦
Wire the Ground circuit.
Using 12AWG M22759/16
wire, connect one of the two moun
Ɵ
ng
fl
anges on
the AVC1 to the aircra
Ō
fi
rewall Ground, Grounding
block, or ba
Ʃ
ery Nega
Ɵ
ve (-) post.
♦
Connect ship’s ba
Ʃ
ery, Posi
Ɵ
ve (+) post
fi
rst.
♦
Test the installa
Ɵ
on. Perform a normal engine start.
Charging should be indicated at 13.8v to 14.4v. LV
indica
Ɵ
on may occur ini
Ɵ
ally, but should cease as
bus voltage rises above the selected warning
threshold.
