Even the most seasoned troubleshooters sometimes find it helpful to visualize a problem in relationship to the basic operating principles of a refrigeration system. Although equipment design and application vary, the basics of mechanical heat transfer remain the same.
Refrigerant Line Charging Information for R-22 Air Conditioning Systems
1/4" OD Liquid Line --- 0.25 oz. per ft. Length (ft.)
1 R-22 (oz.) 2 .25 .50
3 .75
5/16" OD Liquid Line --- 0.45 oz. per ft. Length (ft.) 12 3
R-22 (oz.) .45 .90
3/8" OD Liquid Line --- 0.60 oz. per ft. Length (ft.)