Installing humidifier with split ducting


Old 01-25-15, 08:28 AM
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Installing humidifier with split ducting

Thanks to PJMax and this forum, I was able to figure out an earlier problem on a humidifier installation.

Now, I am installing a second humidifier in our two-everything home (it used to be a two-family back in the day)...

On this Goodman furnace, the supply side splits right off the portion where the coils are, as seen in the picture below.
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I am not sure how to handle this split. Should I install the bypass connection on just one branch? Will that humidify the air in both branches? Or should I split the bypass connection and connect to both sides?

On a side note, I noticed for the first time that there is a small hole next to the water condensation tube from which I can feel hot air blowing when the furnace is on. Can anyone please tell me the purpose of this?

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Again, thank you for all the help you guys give to newbies like me. It saved us a bunch of money, and the wife was really impressed that I was able to install the other humidifier myself...

Jim P
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Old 01-25-15, 09:11 AM
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If this is a second humidifier in the same house then maybe the mounting location is not as critical. If you install it in the one split... will that branch cover the area you are concerned with ?

It's really hard to get a feel for your installation with one picture as it looks like there may be room in that transition below the evaporator.

As far as the air leak, either rework the putty that's there or add a little more over the top of it to stop the air leak.
Old 01-25-15, 11:24 AM
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This is indeed a second humidifier in the same house. There's one furnace for the first floor, and one for the second floor and attic combined.

I do have room in the transition region, but I didn't know that I could use that space. I thought that the connection had to be made after the coils... So if it's okay to use the transition region, that definitely solves my problem. Thanks!

PS: I did poke a hole in the transition region and took a look inside. There's nothing there.
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