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  1. #1
    Join Date
    Jun 2004
    Posts
    247
    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
    Location
    Indianapolis, IN, USA
    Posts
    33,934
    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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