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Garmin GNS430 wiring

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alansbarnett(at)verizon.n
Guest

Posted: Fri May 02, 2014 11:49 am Post 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

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BobsV35B(at)aol.com
Guest

Posted: Fri May 02, 2014 12:34 pm Post subject: 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(at)verizon.net writes:

  	  Quote: 	
		  -->    AeroElectric-List message posted by: Alan Barnett    <alansbarnett(at)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



	


 [quote][b]

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jmjones2000(at)mindspring
Guest

Posted: Fri May 02, 2014 12:59 pm Post subject: Garmin GNS430 wiring

I purchased a used one and am in the same boat. I was able to download the Garmin GNC 430 manual online by searching google for it. I will try to post the link when I get back to my computer for those interested. 

Justin



 



On May 2, 2014, at 15:33, BobsV35B(at)aol.com (BobsV35B(at)aol.com) wrote:

[quote]     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(at)verizon.net (alansbarnett(at)verizon.net) writes:

  	  Quote: 	
		  -->    AeroElectric-List message posted by: Alan Barnett    <alansbarnett(at)verizon.net (alansbarnett(at)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



	


  	  Quote: 	
		  

	


[b]

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uuccio(at)gmail.com
Guest

Posted: Fri May 02, 2014 1:04 pm Post subject: 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). 



 	  Quote: 	
		   On May 2, 2014, at 21:36, Alan Barnett <alansbarnett(at)verizon.net> wrote:

 

 Unless there is a compelling reason, I intend to leave out the switches.

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