Rely on Ruud.™
18
Refrigerant Line Size Information
UA17 Series
R-410A System
Capacity Model
V
apor Line
Connection Size
(Inch I.D.) [mm]
V
apor Line Size
(Inch O.D.) [mm]
V
apor Line Selection Chart
Capacity Multiplier T
able
To
ta
l
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]
24
3/4" [19.06]
5/8 [15.88]
0.99
1.00
0.97
0.98
0.98
0.96
0.96
0.95
0.94
0.95
0.94
0.93
3/4 [19.05]
1.00
1.00
0.99
0.99
0.98
1.00
0.99
0.99
0.99
0.97
0.98
0.98
7/8 [22.23]
1.01
1.01
1.00
1.00
1.00
0.99
0.99
0.99
0.99
0.99
0.99
0.99
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
36
3/4" [19.06]
5/8 [15.88]
0.99
0.98
0.97
0.95
0.95
0.93
0.91
0.91
0.90
0.88
0.87
0.86
3/4 [19.05]
1.00
0.99
0.99
0.99
0.98
0.98
0.97
0.97
0.96
0.96
0.95
0.95
7/8 [22.23]
1.01
1.00
1.00
1.00
0.99
0.99
0.99
0.99
0.99
0.99
0.99
0.99
1
[25.4]
1.01
1.01
1.01
1.00
1.00
1.00
1.00
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
48
3/4" [19.06]
5/8 [15.88]
0.97
0.96
0.93
0.91
0.89
0.88
0.87
0.85
0.83
0.82
0.82
N/R
3/4 [19.05]
0.99
0.98
0.98
0.96
0.96
0.95
0.94
0.94
0.93
0.92
0.92
N/R
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
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
60
3/4" [19.06]
5/8 [15.88]
0.96
0.93
0.91
0.88
0.86
0.84
0.83
0.83
N/R
N/R
N/R
N/R
3/4 [19.05]
0.99
0.97
0.96
0.95
0.94
0.93
0.92
0.91
N/R
N/R
N/R
N/R
7/8 [22.23]
1.00
0.99
0.98
0.98
0.97
0.97
0.96
0.96
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
Refrigerant Line Size Information
(con’t.)
NO
TES:
[
] Designates Metric Conversions
N/R =
A
pplica
tion not recommended.
All calcula
tions assume a 3/8" liquid line
