Duct Seal Quick Fix


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Old 06-26-14, 01:58 PM
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Duct Seal Quick Fix

Is this a sufficient fix?

AC disconnect. One of the concentric knockouts was slightly bent. There was a bit of a gap where the male adapter for the conduit is attached. I put a bead/worm of GB duct seal around it.

Is this OK or am I setting myself up for water infiltration?

I guess I could have used a reducing washer but did not want to take everything apart.
 
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Old 06-26-14, 02:00 PM
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Where is the knockout on the box ? Top, bottom, sides ?
 
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Old 06-26-14, 02:10 PM
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1/2" side knockouts with PVC male adapter and locknuts attached.
 
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Old 06-26-14, 02:55 PM
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The KO's on a raintight enclosure are below the level of the electrified parts. Even if water got in it should leak out the bottom.
 
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Old 06-27-14, 04:19 AM
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I also noticed that THHN was used in the conduit and disconnect. Should wire rated for wet location have been used? And if so, is the use of THHN a looming issue? Theres about 3' worth, in PVC, where it exits the foundation and over to the disconnect.

edit: just noticed a similar spool of southwire #14 I used (same brand as the #10 stranded on the AC) says THHN or THWN. So I am assuming all modern wiring is rated for both?
 

Last edited by ardmi; 06-27-14 at 04:35 AM.
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Old 06-27-14, 05:02 AM
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Most wiring of recent vintage should be dual rated.
 
 

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