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    J-Biz's Avatar
    J-Biz Posts: 1, Reputation: 1
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    #1

    Jul 17, 2012, 03:13 PM
    What does an a coil do for home furnace?
    If I have a 3 1/2 ton A coil but only a 2 1/2 ton A.C. unit will this cause a problem? Heater blower is 3 ton also if it matters.
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Jul 17, 2012, 05:47 PM
    Quote Originally Posted by J-Biz View Post
    If I have a 3 1/2 ton A coil but only a 2 1/2 ton A.C. unit will this cause a problem? Heater blower is 3 ton also if it matters.
    A larger indoor coil will always work with a smaller outside unit up to a point. But the reverse of a larger outdoor unit and a small indoor coil WILL NOT WORK UNDER ANY CIRCUMSTANCES. Large type to get anyone's attention.

    You will have to charge the unit a bit different and the flow rater/piston size will have to match the outside unit.
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