2021 Carrier AC running in great condition. 20x25x4 air filter in good condition. Visual inspection of indoor coil. Flush drain pan and drain lines. Humidifier damper is closed. Run test unit in cooling mode from zone panel. Delta t of 19F with supply temp of 51F. Refrigerant pressure are within spec. Outdoor fan motor and compressor are operating within specs. Outdoor coils are in clean condition. System is operating properly, efficiently and ready for Summer.