13
*Standard line size
NOTES:
➀
Do not exceed vertical separation as indicated on the chart.
➁
Always use the smallest liquid line possible to minimize system charge.
➂
Chart may be used to size horizontal runs.
TABLE 3
LIQUID LINE SIZE
Liquid Line Size
Outdoor Unit Above Indoor Coil
Total Length—Feet [m]
25
[7.62]
50
[15.24]
75
[22.86]
100
[30.48]
125
[38.10]
150
[45.72]
Liquid Line Size
Outdoor Unit Below Indoor Coil
Total Length—Feet [m]
Vertical Separation—Feet [m]
Vertical Separation—Feet [m]
25
[7.62]
50
[15.24]
75
[22.86]
100
[30.48]
125
[38.10]
150
[45.72]
Line
Size
(Inch
O.D.)
[mm]
Liquid
Line
Connection
Size
(Inch I.D.)
[mm]
System
Capacity
Model
18
24
30
36
5/16
[7.94]
5/16
[7.94]
5/16
[7.94]
5/16
[7.94]
42
5/16
[7.94]
48
3/8
[9.53]
60
3/8
[9.53]
1/4*
25
50
70
25
23
8
[6.35]
[7.62]
[15.24]
[21.34]
[7.62]
[7.01]
[2.44]
5/16
36
42
48
54
0
0
0
0
[7.94]
[10.97]
[12.80]
[14.63]
[16.48]
1/4*
25
50
25
23
[6.35]
[7.62]
[15.24]
[7.62]
[7.01]
5/16
24
34
44
54
64
0
0
0
0
0
[7.94]
[7.32]
[10.36]
[13.41]
[16.46]
[19.51]
1/4*
25
50
25
23
[6.35]
[7.62]
[15.24]
[7.62]
[7.01]
5/16
19
33
47
61
0
0
0
0
[7.94]
[5.79]
[10.06]
[14.33]
[18.59]
3/8
11
15
[9.53]
[3.35]
[4.57]
5/16*
25
50
70
25
23
9
[7.94]
[7.62]
[15.24]
[21.34]
[7.62]
[7.01]
[2.74]
3/8
34
40
46
52
0
0
0
0
[9.53]
[10.36]
[12.19]
[14.02]
[15.85]
5/16*
25
50
75
25
23
9
[7.94]
[7.62]
[15.24]
[22.86]
[7.62]
[7.01]
[2.74]
3/8
32
39
46
53
0
0
0
0
[9.53]
[9.75]
[11.89]
[14.02]
[16.15]
3/8*
25
44
53
61
70
25
28
19
11
3
[9.53]
[7.62]
[13.41]
[16.15]
[18.59]
[21.34]
[7.62]
[8.53]
[5.79]
[3.35]
[.91]
1/2
37
39
0
0
[12.7]
[11.28]
[11.89]
3/8*
25
48
61
72
25
23
11
3
[9.53]
[7.62]
[14.63]
[18.59]
[21.95]
[7.62]
[7.01]
[3.35]
[.91]
1/2
35
38
41
0
0
0
[12.7]
[10.67]
[11.58]
[12.50]
