Performed preventative maintenance on Lennox AC system. Replaced 20x25x1 air filter provided by the customer. Tested evaporator coil pan and condensate drain line for proper drainage. Temperature split is at 22° With a supply air temperature of 46°. This unit has bathe proper refrigerant charge. Compressor-7.2 RLA Condenser fan motor-1.0FLA . Both of these readings are within the amperage rating for this unit. System is operating properly at this time and is ready for the upcoming season.