Rheem RARL-JEC Installation Instructions - Page 13

TABLE 4 (-)ARL LIQUID LINE SIZING LIQUID LINE SIZE - OUTDOOR UNIT ABOVE INDOOR COIL R-410A System Capacity Model Line Size Connection Size (Inch I.D.) [mm] Line Size (Inch O.D.) [mm] Liquid Line Size Outdoor Unit Above Indoor Coil (Cooling Only - Does not apply to Heat Pumps) Total Equivalent Length - Feet [m] 25 [7.62] 50 [15.24] 75 [22.86] 100 [30.48] 125 [38.1] 150 [45.72] 1/4" [6.35] 0 -024 3/8" [9.53] 5/16" [7.93]* 0 3/8" [9.52] 0 5/16" [7.93] 0 -036 3/8" [9.53] 3/8" [9.52]* 0 1/2" [12.70] 0 5/16" [7.93] 0 -048 3/8" [9.53] 3/8" [9.52]* 0 1/2" [12.70] 0 3/8" [9.52]* 0 -060 3/8" [9.53] 1/2" [12.70] 0 Minimum Vertical Separation - Feet [m] 1 [0.31] 0 0 0 0 0 0 0 0 0 0 24 [7.32] 0 0 0 0 0 0 0 0 0 0 50 [15.24] 0 0 5 [1.52] 0 0 7 [2.13] 0 0 0 0 76 [23.17] 0 0 13 [3.96] 0 0 28 [8.53] 0 0 0 0 102 [31.09] 0 0 20 [6.10] 0 0 50 [15.24] 0 0 0 0 NOTES: N/A = Application Not Recommended *Standard Line Size LIQUID LINE SIZE - OUTDOOR UNIT BELOW INDOOR COIL R-410A System Capacity Model Line Size Connection Size (Inch I.D.) [mm] Line Size (Inch O.D.) [mm] -024 -036 -048 -060 3/8" [9.53] 3/8" [9.53] 3/8" [9.53] 3/8" [9.53] 1/4" [6.35] 5/16" [7.93]* 3/8" [9.52] 5/16" [7.93] 3/8" [9.52]* 1/2" [12.70] 5/16" [7.93] 3/8" [9.52]* 1/2" [12.70] 3/8" [9.52]* 1/2" [12.70] NOTES: N/A = Application Not Recommended *Standard Line Size Liquid Line Size Outdoor Unit Below Indoor Coil (Cooling Only - Does not apply to Heat Pumps) Total Equivalent Length - Feet [m] 25 [7.62] 13 [3.96] 25 [7.62] 25 [8.23] 15 [4.57] 19 [5.79] 21 [6.40] 25 [9.14] 25 [11.89] 25 [12.80] 25 [17.98] 25 [19.51] 50 [15.24] 75 [22.86] 100 [30.48] 125 [38.1] Maximum Vertical Separation - Feet [m] N/A 21 [6.40] 26 [7.93] N/A 17 [5.18] 21 [6.40] 17 [5.18] 34 [10.36] 41 [12.50] 49 [14.94] 50 [18.90] N/A 17 [5.18] 25 [7.62] N/A 15 [4.57] 20 [6.10] N/A 30 [9.14] 41 [12.50] 40 [12.19] 61 [18.59] N/A 13 [3.96] 23 [7.01] N/A 12 [3.66] 20 [6.10] N/A 25 [7.62] 40 [12.19] 30 [9.14] 60 [18.29] N/A 9 [2.74] 22 [6.71] N/A 10 [3.05] 19 [5.79] N/A 21 [6.40] 39 [11.89] 20 [6.10] 59 [17.98] 150 [45.72] N/A N/A 20 [6.10] N/A N/A 19 [5.79] N/A 17 [5.18] 38 [11.58] 10 [3.05] 57 [17.37] 7.4 Tubing Installation Observe the following when installing correctly sized type "L" refrigerant tubing between the condensing unit and evaporator coil: • If a portion of the liquid line passes through a hot area where liquid refrigerant can be heated to form vapor, insulating the liquid line is required. • Use clean, dehydrated, sealed refrigeration grade tubing. • Always keep tubing sealed until tubing is in place and connections are to be made. • Blow out the liquid and vapor lines with dry nitrogen before connecting to the outdoor unit and indoor coil. Any debris in the line set will end up plugging the expansion device. • As an added precaution, a high quality filter drier is standard on R-410A units. • Do not allow the vapor line and liquid line to be in contact with each other. This causes an undesirable heat transfer resulting in capacity loss and increased power consumption. The vapor line must be insulated. 13