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  #1  
Old 05-18-2009, 07:24 AM
Camillo Camillo is offline
 
Join Date: Sep 2006
Location: Roma, Italy
Posts: 510
Default GNS 430 breaker size

Hi. I'm a bit confused about breaker size for Garmin GNS 430W.

NUMBER

Someone says it needs 2 breakers.
I imagined it only needs one breaker.

SIZE

Shall I add PWR consumption for every function (i.e.: NAV + COMM)?

Thanks.
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  #2  
Old 05-18-2009, 08:07 AM
az_gila's Avatar
az_gila az_gila is offline
 
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Location: 57AZ - NW Tucson area
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Quote:
Originally Posted by Camillo View Post
Hi. I'm a bit confused about breaker size for Garmin GNS 430W.

NUMBER

Someone says it needs 2 breakers.
I imagined it only needs one breaker.

SIZE

Shall I add PWR consumption for every function (i.e.: NAV + COMM)?

Thanks.
Calls for a 5 Amp breaker for the Nav section, and a 10 Amp breaker (at 14 volts input) for the Com section.

The two separate supplies are part of the equipment built-in redundancy.
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Half completed RV-10 QB purchased
RV-6A N61GX - finally flying
Grumman Tiger N12GA - flying
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  #3  
Old 05-18-2009, 12:39 PM
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Ironflight Ironflight is offline
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Location: Dayton, NV
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Default

Gil is correct - the 430 looks to be two separate units (Comm and Nav) joined together in a common screen/control unit at the front. Two separate power supplies. I'm not sure that I'd call it "redundant", as each power feed supplies a different function - I'd call it "fault tolerant" because you still have one function if you lose another.

Paul
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  #4  
Old 05-19-2009, 01:02 AM
Camillo Camillo is offline
 
Join Date: Sep 2006
Location: Roma, Italy
Posts: 510
Default Thank-you

I've not bought it, yet. So, I don't have manual.
The one I found on the web is for a 24V and I was not sure it was the same.

I already have a COMM2.
However, I think I will still go with 2 separate bks.

Thank-you.
__________________
RV4 IO-320, Catto 3-blade, Christen, I-BILT
Flight time: 1 hour
Status: test flights
www.rv4.it

ROME, Italy
---
RV9A O-320 D1A, Hartzell C/S prop, slider, I-PRCA
Flight time: 350 hours
Status: SOLD
http://nuke.rv9.it
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  #5  
Old 05-19-2009, 09:09 AM
az_gila's Avatar
az_gila az_gila is offline
 
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Location: 57AZ - NW Tucson area
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Quote:
Originally Posted by Camillo View Post
I've not bought it, yet. So, I don't have manual.
The one I found on the web is for a 24V and I was not sure it was the same.

I already have a COMM2.
However, I think I will still go with 2 separate bks.

Thank-you.
...listed on VAF for a copy of the manual.
__________________
Gil Alexander
EAA Technical Counselor, Airframe Mechanic
Half completed RV-10 QB purchased
RV-6A N61GX - finally flying
Grumman Tiger N12GA - flying
La Cholla Airpark (57AZ) Tucson AZ
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  #6  
Old 05-20-2009, 07:31 AM
Camillo Camillo is offline
 
Join Date: Sep 2006
Location: Roma, Italy
Posts: 510
Default

Sorry. I can't see any new PM.
May you send it again, please?
Camillo
__________________
RV4 IO-320, Catto 3-blade, Christen, I-BILT
Flight time: 1 hour
Status: test flights
www.rv4.it

ROME, Italy
---
RV9A O-320 D1A, Hartzell C/S prop, slider, I-PRCA
Flight time: 350 hours
Status: SOLD
http://nuke.rv9.it
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  #7  
Old 05-20-2009, 08:08 AM
az_gila's Avatar
az_gila az_gila is offline
 
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Quote:
Originally Posted by Camillo View Post
Sorry. I can't see any new PM.
May you send it again, please?
Camillo
...with your regular (non-VAF) e-mail address and I will re-send it.
__________________
Gil Alexander
EAA Technical Counselor, Airframe Mechanic
Half completed RV-10 QB purchased
RV-6A N61GX - finally flying
Grumman Tiger N12GA - flying
La Cholla Airpark (57AZ) Tucson AZ
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  #8  
Old 05-20-2009, 08:34 AM
Camillo Camillo is offline
 
Join Date: Sep 2006
Location: Roma, Italy
Posts: 510
Default

Received. Thank-you.
Camillo
__________________
RV4 IO-320, Catto 3-blade, Christen, I-BILT
Flight time: 1 hour
Status: test flights
www.rv4.it

ROME, Italy
---
RV9A O-320 D1A, Hartzell C/S prop, slider, I-PRCA
Flight time: 350 hours
Status: SOLD
http://nuke.rv9.it
Reply With Quote
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