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  1. #1
    Join Date
    Jun 2004
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    My AC guy has proposed two 3 ton systems and I have to choose. The main difference is in the choice of coils. He suggests I buy the same condenser for either coil A or coil B. Whichever coil I choose, he will use a TXV.

    Given the use of a TXV, is there really any difference between an evaporator coil's effectiveness? I realize warranty and construction quality are considerations too but my question regards a coil's effectiveness at delivering 3 tons of cooling with a TXV as a metering device and a 3 ton condenser. What might make one coil cool better than another?

  2. #2
    Join Date
    May 2000
    Indianapolis, IN, USA
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    For humidity control, use the smallest ARI rated coil with TXV. Use coil as wide as your plenum so you don't have to block off air.

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