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Old 01-19-2011, 11:59 AM   #1
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running A/C lines in a wall


Newbie to the site. Installing air handler in my attic. Would like to run the line set inside the exterior wall until it reaches near ground level. Unable to find any internet info (pros or cons). Curious to know, is it a possible code violation. If not, should I be concerned with condensation, and if so, how to deal with it.

3 ton unit
line set approx. 35' long (20' to be in wall)

Thanks in advance for any and all help.
Regards,
Jules

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Old 01-19-2011, 01:16 PM   #2
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running A/C lines in a wall


Running lineset inside exterior wall is common practice here in Georgia, the suction line should already be insulated and I don't see an issue with sweating.

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Old 01-19-2011, 04:35 PM   #3
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running A/C lines in a wall


As long as it is insulated well and there are no joints hidden in the wall it should be OK.
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Old 01-19-2011, 04:51 PM   #4
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running A/C lines in a wall


I would put a blocker plate in front of it b-4 the drywall went up. Would hate to see you sink a nail or screw into it... Other than that, if it is well insulated, I don't see a problem.
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Old 01-19-2011, 04:56 PM   #5
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running A/C lines in a wall


Quote:
Originally Posted by newtech View Post
I would put a blocker plate in front of it b-4 the drywall went up. Would hate to see you sink a nail or screw into it... Other than that, if it is well insulated, I don't see a problem.
Good Idea NEW long time no hear. Signed the wonderful and great S------. Take care. Iron.
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Old 01-19-2011, 05:38 PM   #6
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running A/C lines in a wall


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Good Idea NEW long time no hear. Signed the wonderful and great S------. Take care. Iron.
Just would hate to see an " oops " after the drywall went up.

Talk to you on the other site

Newtech

Last edited by newtech; 01-19-2011 at 06:00 PM. Reason: ...
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Old 01-19-2011, 06:36 PM   #7
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running A/C lines in a wall


Thanks for the replies! I'm you're classic "get in over your head" DIYer, and have never been exposed to this situation before. I figured it wasn't a problem, but thought I'd check. I don't think "sweating" will be a problem, especially since it's a north facing wall.
Will definitely install blockoff plates.
Thanks!
Jules

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