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Section 14. System Charge Adjustment <br /> 14.1 Temperature Measurements <br /> STEP 1 - Check the outdoor temperatures. X <br /> 120° F <br /> Subcooling (in cooling mode) is the only recom- See Section 14.2 for <br /> mended method of charging above 55° F ambi- Outdoor J <br /> ent outdoor temperature. See Section 14.2. Temperatures <br /> 55- F <br /> Above 55° F <br /> X <br /> 8 <br /> Outdoor Temp 1 <br /> For outdoor temperatures below 55° F, see Sec- <br /> tion 14.3. See Section 14.3 for <br /> Note: It is important to return in the spring or Outdoor X <br /> summer to accurately charge the system in the Temperatures <br /> cooling mode when outdoor ambient tempera- Below 55° F 550 F <br /> ture is above 55° F. <br /> Outdoor Temp 2 <br /> For best results the indoor temperature should <br /> be kept between 70L' F to 80L' F. X <br /> 80° F <br /> J <br /> 700 F <br /> X <br /> Indoor Temp <br /> 14.2 Subcooling Charging in Cooling (Above 550 F Outdoor Temp.) <br /> STEP 1 - Use the refrigerant line total length <br /> and lift measurements from Section 5.3. <br /> Total Line Length = Ft. <br /> Vertical Change (Lift) = Ft. <br /> LIFT <br /> 18-BC108D1-1 B-EN 17 <br />