Rheem RARL-JEC Installation Instructions - Page 14

TABLE 5 (-)ARL SUCTION LINE SIZING SUCTION 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] Suction 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] -024 -036 -048 -060 3/4" [19.05] 3/4" [19.05] 7/8" [22.22] 7/8" [22.22] 5/8" [15.88] 3/4" [19.05]* 7/8" [22.23] 5/8" [15.88] 3/4" [19.05]* 7/8" [22.23] 5/8" [15.88] 3/4" [19.05] 7/8" [22.23]* 3/4" [19.05] 7/8" [22.23]* 1-1/8" [28.58] Same as Liquid Line Size Table N/A N/A Same as Liquid Line Size Table N/A N/A Same as Liquid Line Size Table Same as Liquid Line Size Table Same as Liquid Line Size Table Same as Liquid Line Size Table Same as Liquid Line Size Table N/A NOTES: Using suction line larger than shown in chart will result in poor oil return. N/A = Application Not Recommended *Standard Line Size SUCTION 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] Suction Line Size Outdoor Unit BELOW 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] -024 -036 -048 -060 3/4" [19.05] 3/4" [19.05] 7/8" [22.22] 7/8" [22.22] 5/8" [15.88] 3/4" [19.05]* 7/8" [22.23] 5/8" [15.88] 3/4" [19.05]* 7/8" [22.23] 5/8" [15.88] 3/4" [19.05] 7/8" [22.23]* 3/4" [19.05] 7/8" [22.23]* 1-1/8" [28.58] Same as Liquid Line Size Table Same as Liquid Line Size Table N/A N/A Same as Liquid Line Size Table Same as Liquid Line Size Table N/A Same as Liquid Line Size Table Same as Liquid Line Size Table Same as Liquid Line Size Table Same as Liquid Line Size Table Same as Liquid Line Size Table N/A NOTES: Using suction line larger than shown in chart will result in poor oil return. N/A = Application Not Recommended *Standard Line Size • If tubing has been cut, make sure ends are deburred while holding in a position to prevent chips from falling into tubing. Burrs such as those caused by tubing cutters can affect performance dramatically, particularly on small liquid line sizes. • For best operation, keep tubing run as short as possible with a minimum number of elbows or bends. • Locations where the tubing will be exposed to mechanical damage should be avoided. If it is necessary to use such locations, the copper tubing should be housed to prevent damage. • If tubing is to be run underground, it must be run in a sealed watertight chase. • Use care in routing tubing and do not kink or twist. Use a good tubing bender on the vapor line to prevent kinking. • Route the tubing using temporary hangers, then straighten the tubing and install permanent hangers. Line must be adequately supported. 14