---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Fri 05/02/14: 5 ---------------------------------------------------------- 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 _____________________________________ Time: 12:49:53 PM PST US From: Alan Barnett Subject: AeroElectric-List: 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 _____________________________________ Time: 01:34:19 PM PST US From: BobsV35B@aol.com Subject: Re: AeroElectric-List: 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 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 _____________________________________ Time: 01:59:16 PM PST US Subject: Re: AeroElectric-List: Garmin GNS430 wiring From: Justin Jones 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 > > > ========================== ========= ========================== ========= ========================== ========= ========================== ========= > ________________________________ Message 4 _____________________________________ Time: 02:04:18 PM PST US Subject: Re: AeroElectric-List: Garmin GNS430 wiring From: Sacha 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 wrote: > > Unless there is a compelling reason, I intend to leave out the switches. ________________________________ Message 5 _____________________________________ Time: 04:41:49 PM PST US Subject: AeroElectric-List: Re: How do I prevent starter engaged LED from failing? From: "eschlanser" 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 ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message aeroelectric-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/AeroElectric-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/aeroelectric-list Browse Digests http://www.matronics.com/digest/aeroelectric-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.