Furnace installed upside down

mcotten · May 28, 2006, 3:03am

I inspected a new construction condo in Chicago today, The new Carrier Furnace was installed upside down, and because it was installed upside down it had 5 90 elbow in the vent pipe.

Does anyone have any information about if Carrier unit can be installed upside down. I have emailed Carrier but no reply yet.

Thank for the help
Michael

jpope · May 28, 2006, 3:46am

There are “down flow” FAU’s, but it sounds like you’ve described an improper installation. Do you have any pictures?

mboyett · May 28, 2006, 3:53am

Maybe…try: http://www.ashrae.org/template/AssetDetail?assetid=13417

rray · May 28, 2006, 8:48am

In my area, that would mean that it is in the crawl space instead of the attic.

rwand1 · May 28, 2006, 11:12am

Five 90 degree elbows? I believe each elbow is the equivalent of 20’ of horizontal run. That means you have in theory 100’ of exhaust vent. I also don’t understand how a furnace can be installed upside down without changing the burners and heat exchanger othewise it would not be firing properly, et ceteras.

mcotten · May 28, 2006, 12:49pm

Michael,

Thanks for the link. Very informative.

Michael

jmcmahan · June 14, 2006, 10:27am

carrier does make multi posistional furnaces they can be flipped for any postion upflow,downflow,horizontal,but the flue is able to be moved too sounds like maybe installer error