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    rhonda1106's Avatar
    rhonda1106 Posts: 1, Reputation: 1
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    #1

    Jun 10, 2008, 06:51 AM
    Do I need to change the orifice?
    If I change from a 30000 to a 35000 central air unit do I need to change the orifice or will it work OK as it is?
    wmproop's Avatar
    wmproop Posts: 3,749, Reputation: 91
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    #2

    Jun 10, 2008, 07:54 AM
    If it's a new condensing unit you are installing,, the higher seer equipment has to have the a-coil changed to match the outside unit,, even if it is the same size btu`s

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