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Addendum:
The bezels on our avionics boxes with this fan setup are cool to the touch. I believe that it is best to blow air down from the glare shield vents, rather than up. We don't notice any heat increase on our feet.
The fans noted below can also be had in 24 volts. I believe the mfg part # is 3324
Cheers,
John
On Wed, 30 May 2012 11:59:14 -0400, John Schroeder <jgschroeder2@windstream.net> wrote:
Dan -
We have two fans mounted on the glare shield that suck air down from the cabin air vents and over the avionics stack. We had one before but decided to add the second one because the stack avionics were still running hotter that we felt was comfortable. They are small "muffin" fans we got from Allied Electric. http://www.alliedelec.com/ Papst Fan: Mfr's Part #: 3312 12V
Allied Stk #: 70105405
John
On Tue, 29 May 2012 13:09:41 -0400, Dan Ballin <dballin@gmail.com> wrote:
Anyone have experience thoughts on using a fan in the glare shield on
a Legacy to cool the avionics. I am concerned about pulling air out
towards the canopy and onto the plexiglass, but I believe this would
result in better cooling. I do have a avionics fan, but it still gets
mighty hot behind the panel.
Thanks
Dan Ballin
N386DM
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