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Float Switch


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According to M1411.3.1 of the 2003 IRC, that won't cut it if it's in a location "where damage to any building components will occur as a result of overflow from the equipment drain pan or stoppage in the condensate drain piping". I find that to be almost anywhere they put it.

There should be either a second drain line or an auxiliary pan. If they go with the auxiliary pan they can use the float switch there instead of giving the pan its own drain line, but I don't care for that option myself. I think they're great when used on an auxiliary pan that has a drain line. The primary fails, the back-up fails, but the float switch can still save you from a screwed-up mess.

Brian G.

IRC-U, Do U-RC Me? [:-magnify

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