Tecumseh Argus - Page 26

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Line Sizing
(Continued)
TABLE 5 – Recommended Line Sizes for R-404A, R-507*
Capacity
BTUH
Suction Line Size Maximum Suction Line Riser Size
Suction Temperature
R404A/507 Suction Temperature °F
+
40 F° Equivalent Lengths
+
20 F° Equivalent Lengths
+
10 F° Equivalent Lengths
25’ 50’ 100’ 150’ 25’ 50’ 100’ 150’ 25’ 50’ 100’ 150’ 40 20 10 -10 -20 -30 -40
1,000 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 1/2 1/2 1/2
3,000 3/8 3/8 1/2 1/2 3/8 3/8 1/2 1/2 3/8 1/2 1/2 5/8 3/8 3/8 1/2 1/2 1/2 1/2 1/2
4,000 3/8 1/2 1/2 1/2 3/8 1/2 1/2 5/8 1/2 1/2 5/8 5/8 3/8 1/2 1/2 1/2 5/8 5/8 5/8
6,000 1/2 1/2 1/2 5/8 1/2 1/2 5/8 7/8 1/2 1/2 5/8 7/8 1/2 1/2 1/2 1/2 5/8 5/8 7/8
9,000 1/2 5/8 5/8 5/8 5/8 5/8 7/8 7/8 5/8 5/8 7/8 7/8 1/2 5/8 5/8 7/8 7/8 7/8 7/8
12,000 1/2 5/8 7/8 7/8 5/8 7/8 7/8 7/8 5/8 7/8 7/8 7/8 1/2 7/8 7/8 7/8 7/8 1-1/8 1-1/8
15,000 5/8 5/8 7/8 7/8 5/8 7/8 7/8 7/8 7/8 7/8 7/8 1-1/8 5/8 7/8 7/8 7/8 7/8 1-1/8 1-1/8
18,000 5/8 7/8 7/8 7/8 7/8 7/8 7/8 1-1/8 7/8 7/8 1-1/8 1-1/8 5/8 7/8 7/8 1-1/8 1-1/8 1-1/8 1-1/8
24,000 5/8 7/8 7/8 7/8 7/8 7/8 1-1/8 1-1/8 7/8 1-1/8 1-1/8 1-1/8 5/8 1-1/8 1-1/8 1-1/8 1-1/8 1-3/8 1-3/8
30,000 7/8 7/8 7/8 1-1/8 7/8 7/8 1-1/8 1-1/8 7/8 1-1/8 1-1/8 1-3/8 7/8 1-1/8 1-1/8 1-1/8 1-1/8 1-3/8 1-3/8
36,000 7/8 7/8 1-1/8 1-1/8 7/8 1-1/8 1-1/8 1-3/8 1-1/8 1-1/8 1-3/8 1-3/8 7/8 1-1/8 1-1/8 1-1/8 1-1/8 1-3/8 1-3/8
42,000 7/8 7/8 1-1/8 1-1/8 1-1/8 1-1/8 1-3/8 1-3/8 1-1/8 1-1/8 1-3/8 1-3/8 7/8 1-3/8 1-3/8 1-3/8 1-3/8 1-5/8 1-5/8
48,000 7/8 1-1/8 1-1/8 1-1/8 1-1/8 1-1/8 1-3/8 1-3/8 1-1/8 1-1/8 1-3/8 1-5/8 7/8 1-3/8 1-3/8 1-3/8 1-3/8 1-5/8 1-5/8
54,000 7/8 1-1/8 1-1/8 1-3/8 1-1/8 1-1/8 1-3/8 1-3/8 1-1/8 1-3/8 1-3/8 1-5/8 1-1/8 1-3/8 1-3/8 1-3/8 1-3/8 1-5/8 1-5/8
60,000 7/8 1-1/8 1-1/8 1-3/8 1-1/8 1-1/8 1-3/8 1-5/8 1-1/8 1-3/8 1-5/8 1-5/8 1-1/8 1-5/8 1-5/8 1-5/8 1-5/8 1-5/8 1-5/8
66,000 1-1/8 1-1/8 1-3/8 1-3/8 1-1/8 1-3/8 1-3/8 1-5/8 1-1/8 1-3/8 1-5/8 1-5/8 1-1/8 1-5/8 1-5/8 1-5/8 1-5/8 1-5/8 1-5/8
72,000 1-1/8 1-1/8 1-3/8 1-3/8 1-1/8 1-3/8 1-5/8 1-5/8 1-1/8 1-3/8 1-5/8 1-5/8 1-1/8 1-5/8 1-5/8 1-5/8 1-5/8 1-5/8 1-5/8
78,000 1-1/8 1-1/8 1-3/8 1-3/8 1-1/8 1-3/8 1-5/8 1-5/8 1-3/8 1-3/8 1-5/8 1-5/8 1-1/8 1-5/8 1-5/8 1-5/8 1-5/8 1-5/8 1-5/8
84,000 1-1/8 1-1/8 1-3/8 1-3/8 1-1/8 1-3/8 1-5/8 1-5/8 1-3/8 1-3/8 1-5/8 2-1/8 1-3/8 1-5/8 1-5/8 1-5/8 1-5/8 2-1/8 1-5/8
90,000 1-1/8 1-3/8 1-3/8 1-5/8 1-3/8 1-3/8 1-5/8 2-1/8 1-3/8 1-5/8 1-5/8 2-1/8 1-3/8 1-5/8 1-5/8 1-5/8 2-1/8 2-1/8 2-1/8
120,000 1-1/8 1-3/8 1-5/8 1-5/8 1-3/8 1-5/8 2-1/8 2-1/8 1-3/8 1-5/8 2-1/8 2-1/8 1-5/8 2-1/8 2-1/8 2-1/8 2-1/8 2-1/8 2-1/8
*NOTES:
1. Sizes that are highlighted indicate maximum suction line sizes that should be used for risers. Riser size should not exceed horizontal size.
2. All sizes shown are for O.D. Type ”L“ copper tubing.
3. Suction line sizes selected at pressure drop equivalent to 2°F. Reduce estimate of system capacity accordingly.