Rheem RA1660AJ1NB - Vapor Line Sizing Charts

Air
Refrigerant Line Size Information
RA16 Series
14
R-410A System
Capacity Model
Vapor Line
Connection Size
(Inch I.D.) [mm]
Vapor Line Size
(Inch O.D.) [mm]
Vapor Line Selection Chart
Capacity Multiplier Table
Total Equivalent Length - Feet [m]
25 [7.62] 50 [15.24] 75 [22.86] 100 [30.48] 125 [45.72] 150 [45.72] 175 [53.34] 200 [60.96] 225 [68.58] 250 [76.20] 275 [83.82] 300 [91.44]
18 3/4" [19.06]
5/8 [15.88]
1.00 0.99 0.99 0.99 0.98 0.98 0.97 0.97 0.97 0.96 0.96 0.96
3/4 [19.05]
1.00 1.00 1.00 0.99 1.00 1.00 0.99 0.99 0.99 0.99 0.99 0.99
7/8 [22.23]
N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R
1 [25.4]
N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R
1-1/8 [28.58]
N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R
24 3/4" [19.06]
5/8 [15.88]
1.01 0.99 0.98 0.98 0.97 0.96 0.95 0.95 0.94 0.93 0.93 0.92
3/4 [19.05]
1.00 1.00 1.01 0.99 0.99 1.00 0.98 0.98 0.98 0.98 0.98 0.98
7/8 [22.23]
1.00 1.01 1.00 1.00 1.00 1.01 1.00 1.00 1.00 0.99 0.99 1.00
1 [25.4]
N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R
1-1/8 [28.58]
N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R
30 3/4" [19.06]
5/8 [15.88]
1.01 0.99 0.98 0.97 0.96 0.95 0.95 0.94 0.93 0.92 0.91 0.91
3/4 [19.05]
1.00 1.01 1.01 1.00 1.00 0.99 0.99 0.98 0.98 0.98 0.97 0.97
7/8 [22.23]
1.01 1.00 1.00 1.01 1.01 1.01 1.01 1.01 1.00 1.00 1.00 1.00
1 [25.4]
1.01 1.01 1.01 1.00 1.00 1.01 1.00 1.01 1.00 1.00 1.00 1.00
1-1/8 [28.58]
N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R
36 3/4" [19.06]
5/8 [15.88]
0.99 0.97 0.95 0.94 0.93 0.93 0.91 0.91 0.90 0.89 0.87 0.86
3/4 [19.05]
1.00 0.99 0.99 0.98 0.98 0.97 0.96 0.96 0.95 0.95 0.94 0.94
7/8 [22.23]
1.00 1.00 0.99 1.00 0.99 0.99 0.99 0.98 0.98 0.98 0.97 0.97
1 [25.4]
1.01 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 0.99 0.99
1-1/8 [28.58]
1.01 1.01 1.01 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
36B 3/4" [19.06]
5/8 [15.88]
0.99 0.97 0.97 0.94 0.94 0.93 0.92 0.90 0.89 0.87 0.87 0.85
3/4 [19.05]
1.00 1.00 0.99 0.99 0.98 0.98 0.97 0.97 0.97 0.95 0.95 0.95
7/8 [22.23]
1.01 1.00 1.00 1.00 1.00 0.99 1.00 1.00 0.99 0.99 0.99 0.98
1 [25.4]
1.01 1.01 1.00 1.00 1.01 1.00 1.01 1.00 1.00 1.00 1.00 1.00
1-1/8 [28.58]
N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R
42 7/8" [22.23]
5/8 [15.88]
0.98 0.97 0.95 0.92 0.91 0.90 0.89 0.86 0.85 0.84 0.83 0.83
3/4 [19.05]
1.00 0.98 0.98 0.97 0.96 0.96 0.95 0.95 0.93 0.93 0.93 0.92
7/8 [22.23]
1.00 1.00 0.99 0.99 0.98 0.98 0.98 0.97 0.97 0.96 0.96 0.96
1 [25.4]
N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R
1-1/8 [28.58]
N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R
48 7/8" [22.23]
5/8 [15.88]
0.98 0.97 0.94 0.92 0.91 0.89 0.87 0.86 0.84 0.83 0.82 0.81
3/4 [19.05]
1.00 0.99 0.98 0.97 0.97 0.96 0.96 0.95 0.94 0.94 0.93 0.92
7/8 [22.23]
1.00 1.00 1.00 1.00 0.99 0.98 0.98 0.98 0.98 0.98 0.97 0.97
1 [25.4]
N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R
1-1/8 [28.58]
N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R
60 7/8" [22.23]
5/8 [15.88]
0.98 0.95 0.92 0.88 0.88 0.86 0.85 0.82
N/R N/R N/R N/R
3/4 [19.05]
1.00 0.99 0.98 0.97 0.96 0.95 0.94 0.94
N/R N/R N/R N/R
7/8 [22.23]
1.01 1.00 1.00 1.00 0.99 0.99 0.98 0.97
N/R N/R N/R N/R
1 [25.4]
1.02 1.01 1.01 1.00 1.00 1.01 0.99 1.00
N/R N/R N/R N/R
1-1/8 [28.58]
N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R
Refrigerant Line Size Information (con’t.)
NOTES: [ ] Designates Metric Conversions N/R = Application not recommended. All calculations assume a 3/8" liquid line