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-   -   Back flow on Humidifier Bypass (http://www.diychatroom.com/f17/back-flow-humidifier-bypass-93697/)

Scott02 01-27-2011 05:46 PM

Back flow on Humidifier Bypass
 
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I have installed an Aprilaire 500A humidifier. Everything works but I noticed the bypass duct gets hot even on the side where it connects into the return duct. Which I think is caused by back flow. Is this normal? Did I install it incorrectly?

Also due to limitation I installed my controller down stream of the bypass. (2'-3') When I close the damper on the humidifier the humidity level drops quickly and when I reopen it it goes back up.

Any incite would be appreciated.


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