Added 3lbs of R22 and adjusted fan speed from Low to Med to allow more heat absorbtion in evaporator. Refrigerant pressures are appropriate for indoor and outdoor conditions. System is cooling as designed. Temp split from supply to return was 10*, now 18* Saturation temp in evaporator was 20*, now 34* ( system will no longer freeze) Superheat was 58+*, now 5*