Reply by CharleyL

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Posted on Air Compressor Upgrade

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222 posts in 3417 days

#1 posted 07-16-2016 03:36 PM

Your fan installation is likely going to start a fire the way you have it installed. It should not be anywhere near combustible materials. It appears to be a brush type motor and they are known for frequently throwing sparks out of the vent holes. If you want to use this fan, mount it several feet below the ceiling with the metal pipe running out through the wall, not into your attic space. Connecting it to only one of the 240 volt wires is OK if the other wire is connected to a Neutral and NOT to the metal case of the electrical box, compressor shell, or ground. This is a code violation that could electrocute you or somebody else who touches your fan or compressor. You are also not providing the correct type of wire for running from the compressor to the fan through the ceiling. Light gauge wire like I see in your pictures is suitable for short power cords that plug into receptacles that are connected to a minimum of 14 ga wire of the correct type for wiring home or businesse construction. It is not suitable for going through the ceiling.

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