13
TABLE 3
(-)ASL LIQUID LINE SIZING
NOTES: N/A = Application Not Recommended
*Standard Line Size
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 [45.72]
150 [45.72]
Minimum
Vertical Separation - Feet [m]
-25
3/8" [9.53]
1/4" [6.35]
0
0
14 [4.27]
41 [12.50]
69 [21.03]
96 [29.26]
5/16" [7.93]
0
0
0
0
0
0
3/8" [9.52]*
0
0
0
0
0
0
-37
3/8" [9.53]
5/16" [7.93]
0
0
6 [1.83]
12 [3.66]
19 [5.79]
26 [7.93]
3/8" [9.52]*
0
0
0
0
0
0
1/2" [12.70]
0
0
0
0
0
0
-39
3/8" [9.53]
5/16" [7.93]*
0
0
0
0
13 [3.96]
27 [8.23]
3/8" [9.52]
0
0
0
0
0
0
1/2" [12.70]
0
0
0
0
0
0
-48
3/8" [9.53]
5/16" [7.93]*
0
0
0
23 [7.01]
45 [13.72]
68 [20.73]
3/8" [9.52]
0
0
0
0
0
0
1/2" [12.70]
0
0
0
0
0
0
-60
3/8" [9.53]
3/8" [9.52]*
0
0
0
0
0
0
1/2" [12.70]
0
0
0
0
0
0
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]
Liquid 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 [45.72]
150 [45.72]
Maximum
Vertical Separation - Feet [m]
-25
3/8" [9.53]
1/4" [6.35]
25 [7.93]
13 [3.96]
N/A
N/A
N/A
N/A
5/16" [7.93]
25 [10.97]
32 [9.75]
29 [8.84]
26 [7.93]
23 [7.01]
20 [6.10]
3/8" [9.52]*
25 [11.58]
37 [11.28]
35 [10.67]
34 [10.36]
33 [10.06]
32 [9.75]
-37
3/8" [9.53]
5/16" [7.93]
N/A
N/A
N/A
N/A
N/A
N/A
3/8" [9.52]*
12 [3.66]
10 [3.05]
N/A
N/A
N/A
N/A
1/2" [12.70]
14 [4.27]
13 [3.96]
13 [3.96]
12 [3.66]
12 [3.66]
11 [3.35]
-39
3/8" [9.53]
5/16" [7.93]*
16 [4.88]
11 [3.35]
N/A
N/A
N/A
N/A
3/8" [9.52]
19 [5.79]
17 [5.18]
15 [4.57]
14 [4.27]
12 [3.66]
11 [3.35]
1/2" [12.70]
20 [6.10]
20 [6.10]
19 [5.79]
19 [5.79]
19 [5.79]
18 [5.49]
-48
3/8" [9.53]
5/16" [7.93]*
25 [10.67]
23 [7.01]
N/A
N/A
N/A
N/A
3/8" [9.52]
25 [11.89]
37 [11.28]
34 [10.36]
32 [9.75]
29 [8.84]
22 [6.71]
1/2" [12.70]
25 [12.50]
41 [12.50]
40 [12.19]
40 [12.19]
39 [11.89]
39 [11.89]
-60
3/8" [9.53]
3/8" [9.52]*
25 [11.28]
34 [10.36]
30 [9.14]
23 [7.01]
13 [3.96]
N/A
1/2" [12.70]
25 [12.19]
39 [11.89]
38 [11.58]
38 [11.58]
37 [11.28]
36 [10.97]
NOTES: N/A = Application Not Recommended
*Standard Line Size
