
Dual A Coil
Hello and Good day.I have a 40 year 3 level split home. Back in 2013 I installed a new Furnace c/w Heat Pump. I installed the lowest profile High Efficiency Furnace available. The furnace sits in the lowest level (basement).
Since day one the uppermost floor of the home and somewhat one half of the main floor doesn’t get the full effect of the air conditioning A Coli.
The duct takeoff from the main plenum feeding the upper floors (top floor and sunken a master bedroom) to the east sits 90 degrees just above center of the A Coil. The floor (Kitchen/Livingroom) to the West of the furnace gets the full effect of the A Coil as the duct feeding that side of the home sits atop the main plenum.
My question is, can a second coil plumbed in series be placed in the East Ductwork as soon as it leaves the main plenum allowing the East air flow to get full effect of the refrigeration unit?
Are their any other solutions to a split level home.
It sounds like you need someone to resolve airflow issues, not add a coil.
“If common sense was so common, everyone would have it.”
Originally Posted by taylor2
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It sounds like you need someone to resolve airflow issues, not add a coil.
Thought that was taken care of by adding additional takeoffs and a larger duct to the east side of the house. Added return air ducts from the problem areas as well (not there previously).
I figured it now had something to do with the full A Coil not being in air flow run for that area of the home.
Adding inline fans to the top floor takeoff to pull/increase flow came to mind as well.
You need the duck work redone properly!
Originally Posted by BCborn59
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Double coil or multiple coil systems are a thing, they exist for various reasons, however, they are not setup in the manner you mentioned. I couldn’t guarantee it, but I would probably gamble to say an additional coil as you described would make the problem worse by reducing airflow further
“If common sense was so common, everyone would have it.”
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Increasing size and numbers are not always the solution. Airflow will typically take the path of least resistance, it takes a lot of skill and some art to design, fabricate and install ductwork in a manner that provides optimal comfort throughout multi level homes. And the larger the home the more difficult it becomes to achieve with one system.Zoning is another option however it takes proper design and setup as well to maintain system efficiency and keep from damaging equipment. I prefer multistage equipment equipment when zoning as well for the best results.
“If common sense was so common, everyone would have it.”