Today I arrived on site and performed a summer tune-up on the hvac systems. Here's a summary of the work completed: Indoor Unit (Air Handler in Closet): Replaced the pleated 1" filter (2 - 20X25X1). Noted the indoor coils were in fair condition. Outdoor Unit (Straight Cool at Back of Building): Observed the outdoor coil was in good, clean condition. Electrical Components: Verified proper operation of the blower motor, condenser fan motor, compressor, blower run capacitor, compressor run capacitor, fan run capacitor, contactor, and electrical wiring within manufacturer's specifications. System Inspection: Confirmed the blower wheel, primary drain pan, and electrical wires were secured and in good working order. Condensate Drain System: Cleared the drain line and cleaned out the primary pan. Measurements: Recorded a return air temperature of 75.0 degrees Fahrenheit and a supply air temperature of 49.0 degrees Fahrenheit. Additional Tasks: Dusted the return grills and thermostats.