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Thread: Intake/exhaust

  1. #27
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    Originally posted by RoBoTeq
    There seems to be some confusion about Carrier venting requirements. Does anyone have a link to their instruction manual?
    All which I have mentioned is right out of the installation manual 1994 carrier corp. 58mvp, 58mxa, 58mca.
    Behind the ostensible government sits enthroned an invisible government owing no allegiance and acknowledging no responsibility to the people.

    Theodore Roosevelt

  2. #28
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    But coolwhip, what you have stated is being disputed by dx who feels he is absolutely correct because other posters seem to back up what he has stated. In the meantime, no proof whatsoever has been posted for any Carrier method.

    Here is a Goodman installation manual; http://securenet.goodmanmfg.com/pdf/...Lit/IO-244.PDF

    Can someone post a similar Carrier installation manual for all of us to look over?
    Government is a disease...
    ...masquerading as its own cure…
    Ecclesiastes 10:2 NIV


  3. #29
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    Originally posted by dx
    Coolwhip is correct. Carrier Weathermaker 58, cca 1992. Exhaust points down, intake points away from wall. Minimum one foot separation (mine is about 18 in.). This is the correct configuration per Carrier. No freezing, no intake contamination, no issues whatsoever. Does not even have screens on either intake or exhaust.
    DX, Your installation is incorrect. There is no configuration in venting for the 58mxa, mvp, or mca where the exhaust terminates toword the ground. Whomever piped your system did not follow carriers instructions. I can send you a jpeg if you wish.
    Behind the ostensible government sits enthroned an invisible government owing no allegiance and acknowledging no responsibility to the people.

    Theodore Roosevelt

  4. #30
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    Jul 2005
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    171
    This is a Carrier 58SXC, cca 1992. If someone has a link to the instructions for this model, we can all see what is correct and what is not.
    Without data, it's just an opinion.

  5. #31
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    Some opinions are a bit more credible then others, wouldn't you agree?
    Government is a disease...
    ...masquerading as its own cure…
    Ecclesiastes 10:2 NIV


  6. #32
    Originally posted by dx
    Coolwhip is correct. Carrier Weathermaker 58, cca 1992. Exhaust points down, intake points away from wall.
    That is not what coolwhip stated! He said it was the other way around. His post follows....

    Originally posted by coolwhip
    On carriers, the exhaust is vented with the the elbow pointing strait out and the intake elbow points down.
    Originally posted by dx
    This is a Carrier 58SXC, cca 1992. If someone has a link to the instructions for this model, we can all see what is correct and what is not.
    Without data, it's just an opinion.
    Well, I would take a TECH's opinion over a HO'ers opinion most days. And beings that my equipment has never allowed your configuration... I will take coolwhip's opinion!

  7. #33
    Join Date
    May 2004
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    368
    here is a link I found to Carriers equipment.
    http://www.xpedio.carrier.com/idc/gr...lic/documents/

    if you know the model # in the technical data you can view as pdf.
    Vern P: 2003 MBC,MRC,IFGC,IFC
    An HVAC-Talk Michigan Chapter Mechanical Inspector, Jurisdiction-Ann Arbor

  8. #34
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    Damn! How is anyone supposed to know what to look at?

    I will reiterate my point that vent/combustion air terminations must all follow the laws of physics. In this case there are thermodynamic laws and laws of relative pressure relationships that must be considered.

    Aside from it seeming that manufacturers engineers are competing against one another to produce the ugliest termination configurations, they all must still abide by the prevailing laws of physics in their design.

    DX; what exactly is it you are trying to accomplish with this thread?
    Government is a disease...
    ...masquerading as its own cure…
    Ecclesiastes 10:2 NIV


  9. #35
    RoBo... no kidding!

    But, this document show the somewhat normal termination designs.

    Which all show the opposite of what dx has stated he has on his unit.

  10. #36
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    Jul 2001
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    dx, what answer are you specifically looking for? You aren't an HVAC contractor, just curious, as you have stated and you have been given the proper answer. Follow the furnace manufacturers instructions. That is the only proper answer. Is there anything else you might be curious about that you would like to beat to death too?

  11. #37
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    Jul 2005
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    Yeah, that link Vern gave is a mess. Vern, I did give the model, it's 58SXC (full model #58SXC080-GG). It's not on the link you gave, there is only 58SX files, no SXC. I feel sorry for you if that's where you have to get your literature.
    RoBo, the point of this thread was to find out if there is a code provision for how the intake/exhaust should be set up. Most posters have suggested that code simply says to follow manufacturer's instructions. I have no problem with that.

    My own system is quite possibly backwards from the Carrier instructions. When it was done (1992), I did verify it against the Carrier drawing, and it did look like they did it right. But it could have been backwards (swapped intake/exhaust) and I may have missed it. Since it's worked flawlessly all these years, I am only curious from the viewpoint of "should I ever hire this HVAC contractor again?"

  12. #38
    Originally posted by dx
    But it could have been backwards (swapped intake/exhaust) and I may have missed it. Since it's worked flawlessly all these years, I am only curious from the viewpoint of "should I ever hire this HVAC contractor again?"
    Everybody screws up once in a while, it's how they handle and rectify the situation that would answer that question for me (if, I was in your shoes).

  13. #39
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    Sep 2002
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    I remember years ago when Heil first came out with 90% sealed combustion furnaces . I put in a ton of them in the summer and vented as the manuel said. When winter hit and the temperature got just right one night I had a ton of units that the intakes iced up from the exhaust cristalizing and sticking on the steel screens they gave with them at that time. Got all of them running that night and called the factory the next morning and they informed me to separate the vents a lot farther away then the manuel said. What a pain that was redoing the venting and patching one hole. Kinda of made you look stupid to the homeowners, like you had no idea what you were doing. Im not really big at having them too close together but at least with exhaust aiming out with no elbow helps. Im definately not in favor of going out the roof with both pvc vents. If they do ice up its a lot harder to unplug on an icy roof.

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