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re: New Construction HVAC question
Posted on 11/1/18 at 9:39 pm to TigerstuckinMS
Posted on 11/1/18 at 9:39 pm to TigerstuckinMS
quote:
An AC's job isn't really to lower air temperature; Its job is to remove humidity and ventilate the conditioned space. The heat contained in the water vapor in the air is typically the majority of the heat contained in the air, by a LARGE margin. The AC's job is to get rid of this heat by chilling the air so the water condenses out. To do this effectively, it needs to run for a time to allow adequate condensation to occur. Oversized systems will turn on and very quickly chill the air, causing the thermostat to shut the system back off. This is called "short cycling". When this happens, the AC does a great job of dehumidifying the air that actually passes through it, but does a bad job of dehumidifying, mixing, and circulating the bulk air in the conditioned space because it just doesn't run long enough to really move enough air through the AC to ensure that the air in the conditioned space is well mixed and dehumidified. Oversized systems may result in a house with hot spots and cold spots because there isn't adequate mixing and circulation. Houses with grossly oversized AC systems can also exhibit problems normally associated with poor moisture control and poor ventilation, like mold and mildew, due to the inadequate dehumidification because of short cycling.
this shite right here is why we need a Housing/Real Estate Board.
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