21
Remote Condensing Unit Installation Instructions
©2019 Tecumseh Compressor Company LLC. All rights reserved.
TPC Part #71511 | Rev A 05/13/2019
www.tecumseh.com
Line Sizing
The following Tables 5 and 6 indicate liquid lines and suction lines for all condensing units for R-404A, R-507, R-407A/C/F,
R-448A and R-449A. When determining the refrigerant line length, be sure to add an allowance for fittings. See Table 3.
Total equivalent length of refrigerant lines is the sum of the actual linear footage and the allowance for fittings.
Line Size O.D.
(Inches)
Refrigerant
Liquid
Line
Hot Gas
Line
Suction Line at Suction Temperature
-40°F
-20°F
0°F
+20°F
+40°F
3/8
R-407
3.8
0.25
0.02
0.03
0.04
0.06
0.09
R-448A/R-449A
3.6
0.24
0,02
0.03
0.04
0.06
0.09
R-507, R-404A
3.4
0.31
0.03
0.04
0.06
0.09
0.13
1/2
R-407
7.2
0.46
0.03
0,05
0.08
0.11
0.17
R-448A/R-449A
6.7
0.44
0.03
0.05
0.07
0.11
0.16
R-507, R-404A
6.4
0.58
0.04
0.07
0.13
0.16
0.24
5/8
R-407
11.5
0.74
0.05
0.08
0.12
0.18
0.26
R-448A/R-449A
10.8
0.71
0.05
0.08
0.12
0.18
0.26
R-507, R-404A
10.3
0.93
0.07
0.11
0.17
0.25
0.35
7/8
R-407
11.5
1.53
0.05
0.08
0.12
0.18
0.26
R-448A/R-449A
22,5
1.48
0.10
0.16
0.25
0.37
0.54
R-507, R-404A
21.2
1.92
0.15
0.23
0.37
0.51
0.72
1-1/8
R-407
23.8
2.60
0.10
0.16
0.25
0.37
0.54
R-448A/R-449A
38.4
2.53
0.17
0.27
0.42
0.63
0.92
R-507, R-404A
36.1
3.27
0.26
0.39
0.63
0.86
1.24
1-3/8
R-407
40.7
3.96
0.17
0.27
0.43
0.63
0.93
R-448A/R-449A
58.4
3.85
0.25
0.41
0.64
0.96
1.40
R-507, R-404A
55.0
4.98
0.40
0.58
0.95
1.32
1.87
1-5/8
R-407
61.8
5,61
0.26
0.41
0.65
1.96
1.43
R-448A/R-449A
82.7
5.45
0.36
0,58
0.90
1.36
1.98
R-507, R-404A
78.0
7.07
0.56
0.82
1.35
1.86
2.64
2-1/8
R-407
87.4
9.76
0.36
0.57
0.91
138
2.01
R-448A/R-449A
143.8
9.48
0.62
1.01
1.57
2.36
3.44
R-507, R-404A
134
12.25
0.98
1.43
2.35
3.23
4.58
2-5/8
R-407
152
15.05
0.63
1.00
1.60
2.38
3.49
R-448A/R-449A
222
14.62
0.96
1.56
2.42
3.65
5,30
R-507, R-404A
209
18.92
1.51
2.21
3.62
5.00
7.07
3-1/8
R-407
235
21.48
0.98
1.55
2.46
3.67
5.39
R-448A/R-449A
317
20.86
1.37
2.22
3.45
5.20
7.57
R-507, R-404A
298
27.05
2.16
3.15
5.17
7.14
9.95
3-5/8
R-407
345
29.05
1.40
2.23
4.00
5.23
8.27
R-448A/R-449A
428
28.22
1.86
3.01
4.67
7.04
10.24
R-507, R-407A
403
36.50
2.92
4.25
6.97
19.65
13.67
4-1/8
R-407
589
37.60
2.45
3.92
6.17
17.80
9.23
R-448A/R-449A
554
36.53
2.40
3.89
6.05
9.00
13.25
R-507, R-404A
526
47.57
3.80
5.55
9.09
12.58
17.80
TABLE 1 – Weight of Refrigerants in Copper Lines During Operation
(Pounds per 100 lineal feet of type “L” tubing)
Содержание Argus
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Страница 35: ...NOTES ...
