Performed evaluation on system- Delta 23 Leaked searched indoor/outdoor coils and all field welds No signs of leaking detected at time of service System has a min - loss of refrigerant Reccomended Schrader core valves on high and low side Reccomended refrigerant Reccomended primary electrical control unit - gashing and burns on contacts Reccomended drain pan treatment strip Reccomended soft start Reccomended IAQ200 UV - system has biological growth in supply box and coil plastic frame Washed condensor and tightened connections Replaced filter System left on cool at exit