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Cabin Heat and Carburetor Heat Box Heat System

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craig(at)craigandjean.com
Guest

Posted: Fri Dec 07, 2007 1:25 pm Post subject: Cabin Heat and Carburetor Heat Box Heat System

The one with two hose connections is for your cabin heat. One side draws from a NACA vent so that your heated cabin heat comes from fresh air. The other side goes to the cabin heat selector box. The NACA vent provides the pressure to push the air through to the cabin. To keep the hose runs short make sure you mount the selector box on the firewall on the opposite side of the plane from the NACA vent. Look here for some guidance on the installation:  

http://www.usjabiru.com/Zenith%20fwf_files/Cabin%20Heat.pdf  

The other tray with the single hose connection is for carb heat. It simple draws air from inside of the cowl. It doesn’t need pressure as the engine sucks air in.  

Now for the (possible) bad news: the size of the inlet or outlet on the cabin heat tray may not match what the other end of the hose goes to. If your FWF kit came from Jabiru USA in TN then they shipped some where one end or the other doesn’t match the part at the other end of the hose. I can’t remember if it is the selector box or the NACA vent. If the cabin heat selector box and NACA vent are both 2 inch then Jabiru USA will swap your tray for one that has 2 inch fittings at both ends. Call Dana and tell her what you have.  

-- Craig      

From: owner-zenith-list-server(at)matronics.com [mailto:owner-zenith-list-server(at)matronics.com] On Behalf Of Dave Nixon

 Sent: Friday, December 07, 2007 1:51 PM

 To: zenith-list-digest(at)matronics.com

 Subject: Cabin Heat and Carburetor Heat Box Heat System   

  

  

              

I am trying to finish up the   exhaust kit to supply heat to the cabin and carb boxes.     

      

Unfortunately, the Jabiru Install   manual is a little light in this area. I have one tray with two outlets   (1-2" & 1- 2 1/2") that is to be mounted to the muffler   and another piece, similar in appearance with just a single outlet on   it.  How do these get mounted?  I figured that there would have to   some forced air from the NACAs but for the life of me I can't get it worked   out.  Any one have any pictures of this part of the install?  I   could find noth ing in the manuals.  Can some one lead me there?    

      

Thanks, Dave Nixon     

      

CH601XL  Jabiru 3300  92%   Done 85% To Go    

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johnd(at)data-tech.com
Guest

Posted: Fri Dec 07, 2007 1:41 pm Post subject: Cabin Heat and Carburetor Heat Box Heat System

To add to Craigs response, the new cowlings that Jabiru USA are shipping are different from the one in the PDF and have a vent on either side of the cowling and not both on the left side as in the PDF photos.

 

 John Davis

 Burnsville, NC

 601XL - Jab 3300

 

 Craig Payne wrote: [quote]                  p.MsoNormal 	{margin-left:7.5pt;}      <![endif]-->       <![endif]-->      

The one with two hose connections is for your cabin heat. One side draws from a NACA vent so that your heated cabin heat comes from fresh air. The other side goes to the cabin heat selector box. The NACA vent provides the pressure to push the air through to the cabin. To keep the hose runs short make sure you mount the selector box on the firewall on the opposite side of the plane from the NACA vent. Look here for some guidance on the installation:   

http://www.usjabiru.com/Zenith%20fwf_files/Cabin%20Heat.pdf   

The other tray with the single hose connection is for carb heat. It simple draws air from inside of the cowl. It doesn’t need pressure as the engine sucks air in.   

Now for the (possible) bad news: the size of the inlet or outlet on the cabin heat tray may not match what the other end of the hose goes to. If your FWF kit came from Jabiru USA in TN then they shipped some where one end or the other doesn’t match the part at the other end of the hose. I can’t remember if it is the selector box or the NACA vent. If the cabin heat selector box and NACA vent are both 2 inch then Jabiru USA will swap your tray for one that has 2 inch fittings at both ends. Call Dana and tell her what you have.   

-- Craig         

From: owner-zenith-list-server(at)matronics.com (owner-zenith-list-server(at)matronics.com) [mailto:owner-zenith-list-server(at)matronics.com (owner-zenith-list-server(at)matronics.com)] On Behalf Of Dave Nixon

   Sent: Friday, December 07, 2007 1:51 PM

   To: zenith-list-digest(at)matronics.com (zenith-list-digest(at)matronics.com)

   Subject: Cabin Heat and Carburetor Heat Box Heat System    

   

   

                                           

I am trying to finish up the exhaust kit to supply heat to the cabin and carb boxes.           

                  

Unfortunately, the Jabiru Install manual is a little light in this area. I have one tray with two outlets (1-2" & 1- 2 1/2") that is to be mounted to the muffler and another piece, similar in appearance with just a single outlet on it.  How do these get mounted?  I figured that there would have to some forced air from the NACAs but for the life of me I can't get it worked out.  Any one have any pictures of this part of the install?  I could find noth ing in the manuals.  Can some one lead me there?          

                  

Thanks, Dave Nixon           

                  

CH601XL  Jabiru 3300  92% Done 85% To Go          

                                                                                

                              

                              

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