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New AC, is this up to code?

Posted by Dave on August 21st, 1999 01:35 PM

I just had a new central air unit put in and was a litle disheartened when I looked over the job. They ran the power line from the breaker box to the outside unit across the floor joists (I know this is a no-no). What about this? The power line, a small guage wire (looks like thermistat wire), a small flex copper tube (maybe .5") and a large flex copper tube (maybe 2") pass through the concrete wall of my basement outside. The large copper tube is insulated the entire way from the furnace to the outside unit. The power line is in conduit on the outside.

Here are my questions. Is it OK for copper and these wires to come in contact with concrete (they filled the hole with waterstop)? Is it OK for the small copper line and the small guage wire to be outside and not protected from the elements?

Thanks for any help. These guys come well recommended and it looks like they did a real nice job on the duct work and installation. I just wonder about this.

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