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    bbrowder439's Avatar
    bbrowder439 Posts: 2, Reputation: 1
    New Member
    		  
    #1

    Sep 21, 2007, 07:23 PM
    Furnace size
    Can you use 4 ton furnace with a 3 ton condenser
    T-Top's Avatar
    T-Top Posts: 1,871, Reputation: 100
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    #2

    Sep 21, 2007, 07:37 PM
    Sure but your only going to have 3 tons of cooling. You can always go a little larger on the blower side but not the revers the condenser can not be larger than the air handler.
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #3

    Sep 22, 2007, 11:30 AM
    In some cases a 4 ton blower setup in the furnace might need to be droped a speed. Too much speed across the A/C coil in the furnace and you will not get the proper dehumidifing from the A/C. Also too much speed on the blower can also cause atomization of the condensate water and blow the water into the duct and not down the drain.
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