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Fresh Air

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Jaybannist(at)cs.com
Guest

Posted: Sun Nov 19, 2006 9:49 am Post subject: Fresh Air

On the 601XL, with the NACA fresh air intakes installed where ZAC shows them,  a duct would have to be severely contorted to get to outlets mounted directly on the instrument panel.  Mounting the outlets below the panel, next to the sidewall will definitely intrude on my knee space.  Yes, with my keen 20-20 hindsight, I know I should have mounted the scoops above where ZAC shows them, but at this point, I can't replace the side skins.  Has anyone mounted the outlets directly on the outlet of the plastic intake shroud?  It would probably require a mounting plate, fastened to that adjacent vertical angle (the one that is curved at the lower end). Is that feasible?  If it is, which outlet model would work best?



Jay in Dallas

craig(at)craigandjean.com
Guest

Posted: Sun Nov 19, 2006 12:27 pm Post subject: Fresh Air

 	  Quote: 	
		  From what I have seen it is fairly common to mount the vents right on the

ducts. AMD does this although they appear to build a metal plenum over the
	


duct. See the attached picture.



I take it things are so tight that you can't reach the panel with a tight

S-bend?



Can you reach the end of the NACA duct to adjust a vent mounted there when

in flight?



Anyway Aircraft Spruce has an adapter (p/n 13-00833) which bolts to the back

of any vent and gives you a 2 inch diameter flange. You should be able to

couple this directly to the 2 inch outlet of the NACA duct. It is the second

item from the top in the left column on this catalog page:



www.aircraftspruce.com/pdf/2007Individual/Cat07190.pdf



The vent just below it (p/n 05-00779) would work nicely with it without

having a corner to catch your leg.



-- Craig

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Jaybannist(at)cs.com
Guest

Posted: Sun Nov 19, 2006 5:35 pm Post subject: Fresh Air

Craig,  I have ordered the vents from Aircraft Spruce.  Didn't order the adapter.  When I get the vents, I'll see what it takes to install them directly to the NACA duct.



Thanks for the reply and info. - Jay

Do not archive



"Craig Payne" <craig(at)craigandjean.com> wrote:



 	  Quote: 	
		  >From what I have seen it is fairly common to mount the vents right on the

ducts. AMD does this although they appear to build a metal plenum over the

duct. See the attached picture.



I take it things are so tight that you can't reach the panel with a tight

S-bend?



Can you reach the end of the NACA duct to adjust a vent mounted there when

in flight?



Anyway Aircraft Spruce has an adapter (p/n 13-00833) which bolts to the back

of any vent and gives you a 2 inch diameter flange. You should be able to

couple this directly to the 2 inch outlet of the NACA duct. It is the second

item from the top in the left column on this catalog page:



www.aircraftspruce.com/pdf/2007Individual/Cat07190.pdf



The vent just below it (p/n 05-00779) would work nicely with it without

having a corner to catch your leg.



-- Craig

MaxNr(at)aol.com
Guest

Posted: Sun Nov 19, 2006 7:19 pm Post subject: Fresh air

I saw some eyeball vents at www.steinair.com 1.5 in $90.00 and 2.0 in $100.00. They are in the Minneapolis area.

 

 Bob Dingley

 Pace,Fl

 601XL/Lyc  [quote][b]

tonyplane(at)bellsouth.ne
Guest

Posted: Mon Nov 20, 2006 7:26 am Post subject: Fresh Air

I placed the fresh air outlets on my panel using eyeball vents with adapters 

(from Aircraft Spruce) to pick up SCAT tubing from the NACA outlets placed 

in the dwg location. No problem,  except vents use up panel space.  See 

http://www.zenithair.com/zodiac/6-photo79.html    picture 

http://www.zenithair.com/zodiac/pic05/493tg3.jpg

The headset jack locations below the panel in the corners directly below the 

vents can sometimes be a problem.  I relocated the pickups further forward 

for a little more room.

Tony Graziano

601XL/Jab3300; N493TG, 173 hrs

--------------------->

 	  Quote: 	
		   Time: 09:49:51 AM PST US

 From: Jaybannist(at)cs.com

 Subject: Fresh Air

 On the 601XL, with the NACA fresh air intakes installed where ZAC shows 

 them,

 a duct would have to be severely contorted to get to outlets mounted 

 directly

 on the instrument panel.  Mounting the outlets below the panel, next to 

 the sidewall

 will definitely intrude on my knee space.  Yes, with my keen 20-20 

 hindsight,

 I know I should have mounted the scoops above where ZAC shows them, but

 at this point, I can't replace the side skins.  Has anyone mounted the 

 outlets

 directly on the outlet of the plastic intake shroud?  It would probably 

 require

 a mounting plate, fastened to that adjacent vertical angle (the one that 

 is

 curved at the lower end). Is that feasible?  If it is, which outlet model 

 would

 work best?



 Jay in Dallas

craig(at)craigandjean.com
Guest

Posted: Mon Nov 20, 2006 8:15 am Post subject: Fresh Air

Love your seats!



www.zenithair.com/zodiac/pic05/493tg4.jpg



How do you like your Trio AP?



-- Craig

btucke73(at)yahoo.com
Guest

Posted: Mon Nov 20, 2006 8:53 pm Post subject: Fresh Air

I used the following vent system from Vans:

   

  http://www.vansaircraft.com/cgi-bin/catalog.cgi?ident=1164084586-262-300&browse=heatvent&product=ventilation-components

   

  VENT SV-COMBO X2

   

  It was fairly cheap, and worked fine.

   

  R/

   

  Brandon

   



   Degrees for working adults in as fast as 1 year. Bachelors, Masters, Associates. Top schools [quote][b]

Gig Giacona

Joined: 10 Jan 2006
Posts: 1416
Location: El Dorado Arkansas USA

Posted: Tue Nov 21, 2006 8:31 am Post subject: Re: Fresh Air

That SV-1 NACA vent is pretty much exactly what Zenith shipped with my kit.

_________________
W.R. "Gig" Giacona
601XL Under Construction
See my progress at www.peoamerica.net/N601WR

Trainnut01(at)aol.com
Guest

Posted: Wed Nov 22, 2006 3:55 pm Post subject: Fresh Air

The vent system that you used is the same one that came with my RV kit.  They were great in the summer, they will blow the chart out of your hand  when they are open. In the winter they don't work so great. They won't close all  the air off. I replaced the "eyeball" with machined aluminum vents I got from  Affordable Panels. I like these. When they are closed they are firmly closed. No  air flow at all. Downside-they were terribly expensive.

 Carroll Jernigan

  

 do not archive

  [quote][b]

btucke73(at)yahoo.com
Guest

Posted: Wed Nov 22, 2006 9:53 pm Post subject: Fresh Air

Carroll,

   

       Did you seal the eyeball vents with silicon?  I have not done it yet, but the documentation supplied with the system gave a pretty clear explanation on how to do it.  Living in San Diego, I don't worry about it much...

   

  VR/

   

  Brandon

   

   



   [quote][b]

Trainnut01(at)aol.com
Guest

Posted: Thu Nov 23, 2006 4:20 am Post subject: Fresh Air

Brandon

 Yes they were sealed with silicone. But I couldn't get them to stay sealed.  After a few weeks the silicone would flake off and would have to be re-applied.  You are probably right about being in San Diego, but Tennessee in January with  an OAT around 10 degrees or less it doesn't take much of an air leak to put  goose bumps on your skin. I have a friend in the Chicago area who takes the  hoses off of his NACA ducts in the winter and tapes them shut.

 He says he may be the first person in history to use duct tape to tape  ducts.

 Carroll

 do not archive

  [quote][b]

amyvega2005(at)earthlink.
Guest

Posted: Thu Nov 23, 2006 1:09 pm Post subject: Fresh Air

VR and Carroll,



I have used Proseal, Silicone tends to dry7 out in the Florida heat and crack.  In fact Proseal is the only thing holding the vent in place.



Juan



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