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  1. I can actually plumb into the fresh air return...

    I can actually plumb into the fresh air return ducts connected to the make-up air system for a fresh air supply. The HVAC company can simply connect to the box located before the motorized damper.
  2. Ok, I've been insistent that we don't add another...

    Ok, I've been insistent that we don't add another grill to the ceiling in the house, so the HVAC guy is working an alternative solution. If indeed the ideal installation would be a dedicated return,...
  3. Thanks...So can the unit be installed directly to...

    Thanks...So can the unit be installed directly to both the supply and return plenums, or is best to connect it to ductwork downstream of the plenums? The HVAC guy said that he was concerned about...
  4. Yes, the air handler has a variable speed motor,...

    Yes, the air handler has a variable speed motor, dictated by one of 4 cooling "profiles"...I talked to the HVAC guy, and he said he really wants the dehumidifier to run independently of the A/C...
  5. With all the registers and returns already in the...

    With all the registers and returns already in the house, adding another return would be an eyesore...What's the next best installation method, second to a dedicated return?

    Thanks!
  6. I don't have a way of measuring humidity inside...

    I don't have a way of measuring humidity inside the home, but the air certainly gets "wet" when the A/C system has not run for a long period of time. We do have a "make-up air" system that was...
  7. No, fortunately I'm not in the habit of...

    No, fortunately I'm not in the habit of trolling...It seems that some folks believe that a properly sized/designed HVAC system will provide all the dehumidification necessary, but I'm finding out...
  8. Thanks everyone...I actually had an A/C...

    Thanks everyone...I actually had an A/C contractor come out, but wanted to be certain I was going down the right path before I pulled the trigger. If you would be kind enough to review their...
  9. Whole House Dehumidifiers - Opposing Viewpoints

    Greetings,

    I'm heavily considering a whole house dehumidifier for our Tampa Bay area home. I've done quite a bit of reading, and there seem to be 2 viewpoints:

    1. The HVAC system, if properly...
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    Thanks for the input everyone...One question...

    Thanks for the input everyone...One question remains for me; is a single return to the dehumidifier sufficient enough to remove humidity from the entire house? I'm most concerned with the 3...
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    I did ask why it couldn't be connected to the...

    I did ask why it couldn't be connected to the return plenum of the AC unit, because this of course would draw air from every room in the house given that we have return filter grills in the 3...
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    Need Advice on Whole House Dehumidifier

    Greetings,

    We've decided to install a whole-house dehumidifier in our Tampa Bay area home that will run independently of the AC/heating system...The primary reason is that our home is very well...
  13. I thought initially it might be oversized, but it...

    I thought initially it might be oversized, but it runs quite a bit in the summer. The entire system, including duct work, is new so I've ruled out leaks. And we only run the system in "auto" mode,...
  14. The dehumidistat seems to be a simple install, so...

    The dehumidistat seems to be a simple install, so I would imagine my A/C contractor would be able to put one in at a reasonable cost...Reading the manual, it looks like it operates in conjunction...
  15. High Humidity and Blower Setting Options

    Greetings,

    I have a recently installed 4-ton Amana A/C system in our 2,100 sq/ft home in the Tampa Bay area, with the MBVC2000 modular air handler. The humidity levels in the home are high at...
  16. Thanks everyone, and sorry for the delayed...

    Thanks everyone, and sorry for the delayed response. Business travel got the best of me.

    So, the system as I understand it is set up as follows:

    (2) 12x12 filter grills with 8" ducts and (1)...
  17. Would that assume that each return has a direct...

    Would that assume that each return has a direct run to the return air plenum? What if two of the 12x12 and single 12x24 were connected to a single 16" duct that was routed to the plenum? Would it...
  18. Question about Filters and Pressure Drop

    I've read quite a bit on MERV ratings, pleated filters, the associated pressure drop, impact on system performance, etc., but everything I've come across seems to reference systems with a single...
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    Actually, looking at the my calculations, I might...

    Actually, looking at the my calculations, I might be calculating too much CFM in both scenarios. In the original installation, the 12x24 filter grille evidently maxes out at 504CFM, which would...
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    I'm basing it on the size of the flex ducts, and...

    I'm basing it on the size of the flex ducts, and the size of the filter grills. The system originally had the following duct system:

    1. Two 12x12 filter grills with 8" flex, and one 12x24 filter...
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    The paperwork was filled out per city code, but...

    The paperwork was filled out per city code, but there was no load calculation actually done to my knowledge.
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    Need Advice on Recent A/C Install

    I had a local HVAC contractor install a completely new system in a home we're remodeling. It's a 1,970sq/ft block home, tile roof, foam insulated walls, and R30 insulated attic. I've been doing...
  23. Assistance with Goodman Fault Codes Please

    Greetings,

    The fault code light is illuminated on my MBVC2000 air handler, and when I push the recall button for over 2 seconds, I get the following:

    A. The fault code and CFM lights...
  24. Thanks....I suspect the HVAC company is going to...

    Thanks....I suspect the HVAC company is going to have to downsize this system, as there's simply too many obstacles for them to overcome...The system seems to be over-sized, and there's insufficient...
  25. We have a reasonable amount of shading in the...

    We have a reasonable amount of shading in the morning, but the entire back of the house is windows and glass doors, so in the late afternoon, there's a pretty high heat load on the house because the...
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