DIY installation of an Aprilaire E080 whole house dehumidifier in a spray foam insulated house.
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- Опубликовано: 13 мар 2022
- We installed an Aprilaire E080 whole house dehumidifier in our spray foam insulated house to fix our high humidity problems.
This video is a little pieced together. It took me over 2 months to install this because I’ve been working so much, and I haven’t had a lot of free time. Also, there are material shortages and some of the stuff I needed was hard to find.
DIY install part 2
How to connect an Aprilaire whole house dehumidifier to a HVAC blower fan.
• How to connect an Apri...
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I just fixed some of my DIY installation mistakes. Please watch this video and see how I connected this whole house dehumidifier to my HVAC blower fan. I also added a condensate overflow safety switch. ruclips.net/video/En1CghNt-T0/видео.html
You inspired me to take the plunge and install a E080. Like you, I chose a platform over hanging the unit. My platform was attached to the trusses. To quiet the vibration I swapped out the 2"x4" wooden spacer you used for blocks of styrofoam. I alternated that with pieces cut from an extra yoga mat I had. Worked great.
Here how I sandwiched things:
1 - 2' x 3' piece of yoga mat between the plywood platform and the condensate pan
2 - 3.5" x 24" strips of the mat inside the pan on both sides under the feet location
1 - 3.5" x 24" styrofoam elevation block each side over the mat strips. I used 1" because that's what I had.
2 - 4" x 4" pieces of mat over the foam under each foot location
1 - 4" x 4" styrofoam block under each foot to add height
1 - 4" X 4" piece of something to keep the feet from sinking into the foam. I used some hard rubber garage flooring I had, but a square of plywood or whatever will work.
The end result was in the neighborhood of 2.5 inches tall. Plenty for the drain line to clear the pan.
Almost zero vibration gets though that sandwich. No more hum. My installation uses a dedicated intake and exhaust. I used an Aprilaire thermostat so that I could turn off the "call for fan". I didn't want the moisture from the wet AC coil to come back in the house every time the dehumidifier ran. I also wanted a single box to control both the heat pump and the dehumidifier. The house is now a perfect 79* with 45% humidity. For Florida, that is fantastic.
Awesome job. 👍
Great install video.
I’ve hook my Aprilaire Dehumidifier up every way possible. You want to hook your return as high as you can get it and feed the supply line to the lowest level of the home with its on register. When I hooked it to the HVAC supply, in the summer when the blower blows to mix the air from the dehumidifier running, the humidity would actually raise until the evaporator coil would dry. It works but far less efficient.
im not sure why this person ran the ducts for dehum the way he did. I normally come off the return of the hvac unit into the dehum out to the supply plenum after the coil. This way when the ac unit reaches setpoint and shuts off your not putting humidity back into the space when the dehum runs.
Yes you have a very large restriction factor with flex duct. You can eliminate a whole lot of ductwork by installing an elbow at the supply air outlet
Very nice !!! Do you know if I can install my return in my second floor?
Fine video. Look at AprilAire specs for connecting your E80 supply duct to the supply duct of your house AC. That mixture should be drier than your space air and therefore absorb your undesired space humidity better. FYI.
Good morning sir you did a great job. Question where did you get drip pan if you don’t mind can you please send me a link
Can hook the return from a supply of an ERV? Building a recording studio and will use ERV for fresh air but will need a dehumidifier down here on the gulf coast where it’s liquid air for most of the year. The A/C will be split units.
RE your spray foam insulation. My guys sprayed over the wood rafters. Thermal imaging shows that wood lets cold and heat by so covering the wood helps with insulation.
Man, as a hvac professional that pretty looks good. Just blocking the doors for the units wouldn't pass code and you couldn't work on it at all
@20:22: The different RHs are a function of wiring and airflow. You probably wired it to run with the signal wire for the evap fan, so it'll only run when the fan runs. Second, that dehumidifier has a much lower air flow (1,000 CFM), so you're dehumidifying a portion of the return air and only when the evap fan runs. (Granted, the A/C also dehumidifies.)
Your air passing thru your dehumidifier is getting dry, but when you dump the dry air below the coil in the air handler, your passing that air thru a wet coil, that's just re wetting the air, just a heads up, (12 plus years hvac installer)
Question. Did you have an issue with the drain. Reason I’m asking is the airhandler is negative air and will pull negative air from your dehumidifier and into the airhandler, especially if the main trap goes dry. This will cause the air to push the water away from the drain. Just a heads up.
I got a manual j performed and they said to use a 2.5 ton heat pump for my house. However I already have a 3.5 ton heat pump that has spray foam on the attic and blown insulation on the walls. Is it ok to leave the 3.5 ton and get a whole house humidifier? Thanks
Hi una pregunta se puede conectar el supply del humidifier en el return
Hi - thank you for the video - where did you order the drain pan.
Home Depot. I tried to share the link below. Master Flow 24” x 36” Drain Pan
www.homedepot.com/p/Master-Flow-24-in-x-36-in-Drain-Pan-with-PVC-Connector-26-Gauge-26DDP24X36/204167997
Thanks so much for sharing your experience 👍 Do you know what drain pan model number you bought?
www.homedepot.com/p/Master-Flow-24-in-x-36-in-Drain-Pan-with-PVC-Connector-26-Gauge-26DDP24X36/204167997
Maybe this link will work. Master Flow 24 x 36 drain pan. 26 gauge
Yeah blocking the air hander doors kinda sucks but good job
Great video! Does the dehumidifier trigger the furnace blower to come on or do you have to first have the blower come on before the dehumidifier comes on? Basically is the dehumidifier triggered to come on only after the furnace’s blower come on.
At first, it was not connected to the HVAC blower. It worked okay, but not great. I made another video showing some modifications I made. Now, the dehumidifier turns on the hvac blower/fan every time it comes on. It works very good now.
How to connect an Aprilaire whole house dehumidifier to a HVAC blower fan in spray foamed house.
ruclips.net/video/En1CghNt-T0/видео.html
nice video. One thing I noticed is your output of the dehumidifier into your "Y" will not work correctly I believe. Unless you have a damper in place between the HVAC return grill and the "Y" the dehumidified air will take the path of least resistance and flow right out that grill near your dehumidifier return making an air loop essentially. I believe Aprilaire has the ability to trigger the HVAC blower only to circulate the dehumidified air throughout the house.
I agree. If he's just running the dehumidifier alone it won't go through the hvac but instead will loop back into the room. At least he's dehumidifiing something which will eventually spread throughout the house...
You should have dumped the dry air into the return side. Why dump it in the return line?
why can't you install the dehumidifier into the main trunk of your current hvac?
Great job - you've inspired me as well. Where can I get this unit? It seems I must be "in the biz" in order to buy one. Thoughts?
I ordered the dehumidifier from Amazon. You can order dehumidifiers from many different websites. All of the other ductwork and materials came from Home Depot or Lowe’s.
Great videos, very informative! If you had to do it all over again would you install the ERV along with the dehumidifier or just the dehumidifier?
If I did this all over again I would not install an ERV. I would install a fresh air vent for each of my hvac units. That would’ve saved a lot of time and money. I need a dehumidifier because it’s very humid in Georgia so I would definitely install one of those again.
Thanks for the quick response. I’m looking into a fresh air vent for my hvac now… I think this coupled with the dehumidifier will be the best remedy also. I’m in Texas with a foamed house and it’s crazy humid inside. I sure wish I would have tackled all of this stuff during the build, not after. Oh well. Beautiful home, btw and thanks for the informative videos!
@@BrantleyBlendeddo you not think that an ERV is saving enough money to make it worthwhile? I, too, am considering this sort of setup…an ERV with dehumidifier. However, I’m intrigued with just a dehumidifier with a fresh air intake. Thoughts? Climate is north Alabama.
The ERV is not saving me any money. It doesn't really cost me much either now that the installation is done. It draws very little power so it doesn't run up the power bill. I spent about $3000 to install my ERV. I regret it now. I wish I had my money back. Also, the ERV requires cleaning every 3 months. I'm tired of cleaning it all the time. I should've installed fresh air intakes on my 2 HVAC units. It would have been cheaper and requires no cleaning.
Turn the grill the same as other one looks better that way
im getting the same unit you have, we think alike haha. I have an ERV and humidity is out of control in the summer in my house, I have like 4 fish tanks. I am trying to figure out how to tie the april aireir 080 into my daikin one thermostat it has an option for " add dehumidifier" so hoping I can avoid having to use a separate controller.
I think the Aprilaire installation manual shows how to connect it to an external controller or existing thermostat, but I could be wrong. It’s been a couple months since I looked at it.
Honeywell has thermostat prestige iaq, that use can use and they have bluetooth sensor accessories for humidity and temp
Nice video. Can you give us a update on how it's working?
Yeah not that it’s hot in GA, can you let us know if the upstairs has significantly reduced humidity now? I have a spray foamed house too with two units, I’m not sure if I should put it tie it in downstairs or upstairs.
I have a few update videos on my channel. I am going to make another update video today since I just hit the 1 year mark of having this ERV. I also have a playlist with a lot of videos about our spray foam problems, ERV, and whole house dehumidifier.
The ERV did not fix our high humidity problems. I installed an Aprilaire whole house dehumidifier 2 months ago. I have made some videos about it. It has helped with our high humidity.
hello. i believe you have to run furnace fan when dehumidifier is running in this cinfiguration
I changed the setup later and wired it into my hvac system.
How to connect an Aprilaire whole house dehumidifier to a HVAC blower fan in spray foamed house.
ruclips.net/video/En1CghNt-T0/видео.html
nice video very important information, and I want to ask where are you located, when is this dehumidifier is needed I know when spray foam insulation, and I am sure if you live in Florida for sure you would need this, I am in Austin Tx area and I have spray foam insulation in my attic but is not crating any humidity now the size of the house is 2150 sq ft and I have a 3.5 Tons Ac unit, do you think I should consider to install one dehumidifier. thank you so much for your help in advance
I am in Georgia. Anyone living in the south, or other areas with high humidity, need a dehumidifier.
You might add a cleanout and safety switch on the condensate drain line.
I have a newer video linked below showing how I moved this unit to a different place in my attic, wired it into my hvac, and added a safety switch. I might add a cleanout in the future. That’s a good idea.
How to connect an Aprilaire whole house dehumidifier to a HVAC blower fan in spray foamed house.
ruclips.net/video/En1CghNt-T0/видео.html
@@BrantleyBlended Thanks for the link. Looking forward to hearing what you think of it and any suggestions.
Nice job on the install. I paid a company to install my EO80. Only difference is they tied the intake duct into the existing duct work in the attic. However, I am noticing the dehumidifier never reaches its set point. How is yours doing?
The installation manual shows the preferred method of installation like the way you described. I probably would've done that, instead of cutting another hole in my ceiling, if my HVAC return duct was longer.
I'm about to post an update video. The dehumidifier is working good. I think I need to make a few modifications, but I'm happy with it overall. It is helping with our high humidity. Our towels and clothes get dry now when they are hanging up. I have to keep it set at 45% to get my house to around 50%. The dehumidifier reaches the 45% set point, but my house never gets that low unless its cold outside and the humidity is low outside.
@@BrantleyBlended thanks for the update. Recently, my unit has not been reaching the set point. From the looks of the drain pipe it doesn’t look like it’s pulling any humidity out of the air. I am not really sure how to troubleshoot. Looks like I’ll have get a service tech.
Hey i installed the same dehumidifier in my basement , i did the same work except mine do not connect to hvac its going into the same room i did a duct for the intake and the outtake . Do i have to put the outtake to the outside house vent or the same air has to come back into the house ?
The outtake (the supply) should be ducted into the house like you did. It’s blowing all the good, dehumidified air back into the house.
Would a variable speed air handler done the job with a Trane thermostat that has humidity control option?
Good question
What size is the drain pan and where did you get it? Thank you!
24" x 36" ordered it from Home Depot
hope this link works
www.homedepot.com/p/Master-Flow-24-in-x-36-in-Drain-Pan-with-PVC-Connector-26-Gauge-26DDP24X36/204167997
So, with the Tee, you are sending DeHumidified air back into the HVAC (return) AND back into the house for recirculation?
That was possible when I first installed this dehumidifier, as shown in this video. I posted an update video where I connected the dehumidifier to the HVAC blower. Now, every time the dehumidifier turns on, it turns on the HVAC blower. That helps circulate the dehumidified air through the house much better.
Would using spray foam in interior walls cause problems you think? I was wondering about using " froth packs" for some interior walls for soundproofing. Do you think it would cause any problems?
Just using spray foam for the interior walls and not the exterior walls?
@@BrantleyBlended Yeah just interior walls to cut down on noise.
You can get roxul sound proofing bats.
Is your attic sealed, or do you have a vent to outside????
My attic is completely sealed with spray foam. I have an ERV that brings in fresh air from outside.
Are they 8 inch ducts? I am trying to google and I’m not seeing it anywhere. Thanks!
Just kidding you says 10 inch ductwork! I should’ve been more patient and continued watching 😂
How could I install this in my home? I don’t have any return ducts. My AC Unit is in the middle of the home with one of those vented doors.
There are many different ways to install this dehumidifier. You could run it’s own ductwork. It doesn’t have to be connected to your hvac system.
Yo how many sq ft is your house? Also why the E 80 vs E100? How is it working? My house is 2200 sq ft and I wondering if should spend a extra $ 300 for the E100, or will E80 do the job...I 'm installing as a supplement for my HVAC system for very humid days when outside temp is 85 degrees and 70%humidity inside 75 degrees and 60 % humidity. I live in Delaware. Please all readers give me your opinions.. Is your E 80 control by your HVAC system?
My house is 1900 sq ft. The dehumidifier is working good for me. It’s been running for 2 months. I just posted an update video about it. My dehumidifier is not controlled by my hvac.
Should have just got a 10” collar and put it on the return box
So this is whole house. Can I put this in my crawlspace and make it dual use for both the house and crawlspace
You can put this in your crawlspace. They also make the E070 for the crawlspace.
@@BrantleyBlended so it would dehu the crawlspace and house at the same time
You hooked the drain to the main drain before the trap negating the trap
Do I need a trap?
@@BrantleyBlended Aprilaire says no need for a trap with the E series because they flipped around how they work inside.
Mine had some of the shipping labels on the bottom.
Aprilaire will only honor the warranty if the unit is professionally installed. Too bad.
I don't understand. Why didn't you just install the dehumidifier return to the existing return?
The HVAC return wasn’t long enough according to the dehumidifier installation instructions. I think there was supposed to be at least 6’ between where the dehumidifier pulled air from the return and supplied air back to the return.
@@BrantleyBlended ahhh I see got it!! Thank you!!
If you are looking for a drip pan this worked for the E100. You can drill your own drain hole and use a $3 fitting from Home depot. I got this Amazon. Eagle 1677B Containment Utility Tray, 36" Length x 18" Width x 2" Height, Black $44.00