I recently added on air conditioning to a modular home. The furnace is a Miller 90% gas downflow with the open space below the furnace for the coil. I used an ADP HE31230A155A000067 uncased 2.5 ton upflow/downflow “A” coil and a 2.5 ton, 13 SEER Luxaire condenser in 410A. As soon moisture begins to condense on the coil, the condensate is being blown off the coil into the ductwork below the coil. I swapped out the ½ hp blower motor that the furnace came with and put in a 1/3 hp motor and set the cooling on the lowest speed and still the condensate is being striped off of the coil. I have done dozens of these types of add ons and I have never had a problem with this until this one. Any of you guys run into this??