AC precision tune up. Clean and tune up AC; cleaned condenser coil, checked all outdoor electrical components, tested indoor air flow, checked refrigerant levels, and tested overall AC operation. Found cooling fan speed set very low. Set to correct speed and tested operation. Fan speed is now set to correct setting per ac size, however duct pressure is high. 5 ton furnace should be on return air box as well as having side return. This will lower pressure and air be more evenly distributed throughout home. Hard start kit recommend for larger ac to help compressor start up. This will add longevity to outdoor unit. Will email quote for box when estimate is created.