Today's Message Index:
----------------------
1. 12:49 PM - Garmin GNS430 wiring (Alan Barnett)
2. 01:34 PM - Re: Garmin GNS430 wiring (BobsV35B@aol.com)
3. 01:59 PM - Re: Garmin GNS430 wiring (Justin Jones)
4. 02:04 PM - Re: Garmin GNS430 wiring (Sacha)
5. 04:41 PM - Re: How do I prevent starter engaged LED from failing? (eschlanser)
Message 1
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| Subject: | Garmin GNS430 wiring |
I'm installing a Garmin GNS 430 in my COZY III. I bought the unit from
an avionics shop. Since I want to install it myself, I requested all
the wires, connectors, etc required. Included were three fuses (2a, 5a
and 10a), one DPDT switch, and four SPDT switches.
I assume the 10a fuse is for the COM power and the 5a fuse is for the
main power, and that the DPDT switch is for both power circuits. Is this
reasonable?
What are the 2a fuse and the SPDT switches for?
Are there really so many switches in a standard installation? Unless
there is a compelling reason, I intend to leave out the switches.
Thanks for your comments.
Alan
Message 2
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| Subject: | Re: Garmin GNS430 wiring |
Good Afternoon Alan,
You should ask your supplier for a copy of the current install manual. The
dealer can either run off the copy himself or give you the address so you
can download it.. I do not think he is supposed to give you the address, but
there is nothing at all wrong with his supplying you with the most recent
install manual available. I think the most current one is from about March
of 2013.
Is your unit a 430 or a 430W? The install manual will guide you through
the various possibilities and help you make decisions based on how you wish
to use the unit.
Happy Skies,
Old Bob
In a message dated 5/2/2014 2:52:04 P.M. Central Daylight Time,
alansbarnett@verizon.net writes:
--> AeroElectric-List message posted by: Alan Barnett
<alansbarnett@verizon.net>
I'm installing a Garmin GNS 430 in my COZY III. I bought the unit from
an avionics shop. Since I want to install it myself, I requested all
the wires, connectors, etc required. Included were three fuses (2a, 5a
and 10a), one DPDT switch, and four SPDT switches.
I assume the 10a fuse is for the COM power and the 5a fuse is for the
main power, and that the DPDT switch is for both power circuits. Is this
reasonable?
What are the 2a fuse and the SPDT switches for?
Are there really so many switches in a standard installation? Unless
there is a compelling reason, I intend to leave out the switches.
Thanks for your comments.
Alan
Message 3
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| Subject: | Re: Garmin GNS430 wiring |
I purchased a used one and am in the same boat. I was able to download the G
armin GNC 430 manual online by searching google for it. I will try to post t
he link when I get back to my computer for those interested.
Justin
On May 2, 2014, at 15:33, BobsV35B@aol.com wrote:
> Good Afternoon Alan,
>
> You should ask your supplier for a copy of the current install manual. The
dealer can either run off the copy himself or give you the address so you c
an download it.. I do not think he is supposed to give you the address, but t
here is nothing at all wrong with his supplying you with the most recent ins
tall manual available. I think the most current one is from about March of 2
013.
>
> Is your unit a 430 or a 430W? The install manual will guide you through t
he various possibilities and help you make decisions based on how you wish t
o use the unit.
>
> Happy Skies,
>
> Old Bob
>
> In a message dated 5/2/2014 2:52:04 P.M. Central Daylight Time, alansbarne
tt@verizon.net writes:
n.net>
>
> I'm installing a Garmin GNS 430 in my COZY III. I bought the unit from
> an avionics shop. Since I want to install it myself, I requested all
> the wires, connectors, etc required. Included were three fuses (2a, 5a
> and 10a), one DPDT switch, and four SPDT switches.
>
> I assume the 10a fuse is for the COM power and the 5a fuse is for the
> main power, and that the DPDT switch is for both power circuits. Is thi
s
> reasonable?
>
> What are the 2a fuse and the SPDT switches for?
>
> Are there really so many switches in a standard installation? Unless
> there is a compelling reason, I intend to leave out the switches.
>
> Thanks for your comments.
>
> Alan
>
>
>
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>
Message 4
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| Subject: | Re: Garmin GNS430 wiring |
I installed mine without switches and I believe this is best unless you are so
restricted with battery capacity that you'd need to turn off the GPS during an
alternator failure.
I've never seen an installation with more than one external switch (usually the
avionics switch, but keep in mind this is a useless carryover from the past,
not to mention a potentially dangerous single point of failure).
> On May 2, 2014, at 21:36, Alan Barnett <alansbarnett@verizon.net> wrote:
>
> Unless there is a compelling reason, I intend to leave out the switches.
Message 5
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| Subject: | Re: How do I prevent starter engaged LED from failing? |
Bob et group,
In wiring a starter engaged annunciator, I am using an off-the-shelf LED fixture
with an appropriate resistor already integrated into it. The resistor is actually
soldered directly to the LED lead inside of the fixture.
The two attached diagrams from the archives differ in how the diode is added.
(I put a 1A inline fuse where both of the attached drawings shows a resistor.)
In either drawing, it won't be possible to place the legs of the resistor outside
of the legs of a diode in my LED circuit with the integrated resistor. Is
that going to be a problem?
Would one circuit drawing be preferred over the other?
Thank you,
Eric Schlanser
Z13/8 project
Lyc O320 with Skytec 12V HT Wound-Field starter and auto style starter contactor
> I think I remember reading if an LED is used instead of a bulb for
> starter engagement indication, that you best add a diode to prevent
> the LED from getting hurt when power is removed from starter motor.
> Where does the diode get placed, in series with the LED or in parallel?
>
>
Either would work . . . but parallel is preferred.
> If answer is in parallel where would the dropping resistor for LED
> get placed, between the legs of the protection diode, or outside?
>
>
Outside
Bob . . .[/quote]
>
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=422741#422741
Attachments:
http://forums.matronics.com//files/starter_engaged_warning_lt_248.pdf
http://forums.matronics.com//files/in_line_resistor_6_966.jpg
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