Suction line size, Suction temperature, Liquid line size – Nor-Lake Refrigeration Systems User Manual
Page 9: Receiver to expansion valve
09/14 Rev. E 101628
9
TABLE 3
– Recommended Line Sizes for R-404A Refrigerant (Continued)
Note:
Sizes that are highlighted indicate maximum suction line sizes that should be used for risers. Riser size should not
exceed horizontal size. Properly placed suction traps must also be used for adequate oil return.
All sizes shown are for O.D. type L copper tubing.
Suction line sizes selected at pressure drop equivalent to 2°F reduce estimate of system capacity accordingly. If
system load drops below 40% of design, consideration to install double suction risers should be made.
SUCTION LINE SIZE
LIQUID LINE SIZE
Suction Temperature
Receiver to
Expansion Valve
System
Lengths
Equivalent Lengths
Equivalent Lengths
Equivalent Lengths
Capacity
100'
150'
200'
25'
50'
75'
100'
150'
200'
25'
50'
75'
100'
150'
200'
25'
50'
75'
100'
150'
200'
BTU/Hr
1/2
1/2
1/2
3/8
3/8
1/2
1/2
1/2
5/8
3/8
1/2
1/2
1/2
5/8
5/8
3/8
3/8
3/8
3/8
3/8
3/8
1,000
5/8
7/8
7/8
1/2
1/2
5/8
5/8
7/8
7/8
1/2
1/2
5/8
5/8
7/8
7/8
3/8
3/8
3/8
3/8
3/8
3/8
3,000
7/8
7/8
7/8
5/8
5/8
5/8
7/8
7/8
7/8
1/2
5/8
5/8
7/8
7/8
7/8
3/8
3/8
3/8
3/8
3/8
3/8
4,000
7/8
7/8
7/8
5/8
5/8
7/8
7/8
7/8
7/8
5/8
5/8
7/8
7/8
7/8
1-1/8
3/8
3/8
3/8
3/8
3/8
3/8
6,000
7/8
1-1/8 1-1/8
5/8
7/8
7/8
7/8
1-1/8 1-1/8
5/8
7/8
7/8
7/8
1-1/8 1-1/8
3/8
3/8
3/8
3/8
3/8
3/8
9,000
1-1/8 1-1/8 1-1/8
7/8
7/8
7/8
1-1/8 1-1/8 1-1/8
7/8
7/8
7/8
1-1/8 1-1/8 1-1/8
3/8
3/8
3/8
3/8
3/8
1/2
12,000
1-1/8 1-1/8 1-3/8
7/8
7/8
1-1/8 1-1/8 1-1/8 1-3/8
7/8
7/8
1-1/8 1-1/8 1-1/8 1-3/8
3/8
3/8
3/8
3/8
1/2
1/2
15,000
1-1/8 1-3/8 1-3/8
7/8
1-1/8 1-1/8 1-1/8 1-3/8 1-3/8
7/8
1-1/8 1-1/8 1-1/8 1-3/8 1-3/8
3/8
3/8
3/8
1/2
1/2
1/2
18,000
1-3/8 1-3/8 1-3/8 1-1/8 1-1/8 1-1/8 1-3/8 1-3/8 1-3/8 1-1/8 1-1/8 1-1/8 1-3/8 1-3/8 1-3/8
3/8
3/8
1/2
1/2
1/2
1/2
24,000
1-3/8 1-3/8 1-5/8 1-1/8 1-1/8 1-3/8 1-3/8 1-3/8 1-5/8 1-1/8 1-1/8 1-3/8 1-3/8 1-3/8 1-5/8
3/8
1/2
1/2
1/2
1/2
1/2
30,000
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 1-1/8 1-3/8 1-3/8 1-3/8 1-5/8 1-5/8
1/2
1/2
1/2
1/2
1/2
5/8
36,000
1-5/8 1-5/8 1-5/8 1-1/8 1-3/8 1-3/8 1-3/8 1-5/8 1-5/8 1-1/8 1-3/8 1-3/8 1-3/8 1-5/8 1-5/8
1/2
1/2
1/2
1/2
5/8
5/8
42,000
1-5/8 1-5/8 1-5/8 1-1/8 1-3/8 1-3/8 1-3/8 1-5/8 1-5/8 1-1/8 1-3/8 1-3/8 1-3/8 1-5/8 1-5/8
1/2
1/2
1/2
5/8
5/8
5/8
48,000
1-5/8 1-5/8 1-5/8 1-3/8 1-3/8 1-3/8 1-5/8 1-5/8 2-1/8 1-3/8 1-3/8 1-3/8 1-5/8 1-5/8 2-1/8
1/2
1/2
1/2
5/8
5/8
5/8
54,000
1-5/8 1-5/8 2-1/8 1-3/8 1-3/8 1-5/8 1-5/8 1-5/8 2-1/8 1-3/8 1-3/8 1-5/8 1-5/8 1-5/8 2-1/8
1/2
1/2
5/8
5/8
5/8
5/8
60,000
1-5/8 1-5/8 2-1/8 1-3/8 1-5/8 1-5/8 1-5/8 1-5/8 2-1/8 1-3/8 1-5/8 1-5/8 1-5/8 1-5/8 2-1/8
1/2
1/2
5/8
5/8
5/8
5/8
66,000
1-5/8 1-5/8 2-1/8 1-3/8 1-5/8 1-5/8 1-5/8 1-5/8 2-1/8 1-3/8 1-5/8 1-5/8 1-5/8 1-5/8 2-1/8
1/2
5/8
5/8
5/8
5/8
5/8
72,000
1-5/8 2-1/8 2-1/8 1-5/8 1-5/8 1-5/8 1-5/8 2-1/8 2-1/8 1-5/8 1-5/8 1-5/8 1-5/8 2-1/8 2-1/8
5/8
5/8
5/8
5/8
5/8
7/8
78,000
2-1/8 2-1/8 2-1/8 1-5/8 1-5/8 1-5/8 2-1/8 2-1/8 2-1/8 1-5/8 1-5/8 1-5/8 2-1/8 2-1/8 2-1/8
5/8
5/8
5/8
5/8
7/8
7/8
84,000
2-1/8 2-1/8 2-5/8 1-5/8 2-1/8 2-1/8 2-1/8 2-1/8 2-5/8 1-5/8 1-5/8 2-1/8 2-1/8 2-1/8 2-5/8
5/8
5/8
5/8
7/8
7/8
7/8
90,000
2-1/8 2-5/8 2-5/8 1-5/8 2-1/8 2-1/8 2-1/8 2-5/8 2-5/8 1-5/8 2-1/8 2-1/8 2-1/8 2-5/8 2-5/8
5/8
5/8
7/8
7/8
7/8
7/8
120,000
2-5/8 2-5/8 2-5/8 2-1/8 2-1/8 2-1/8 2-5/8 2-5/8 2-5/8 2-1/8 2-1/8 2-5/8 2-5/8 2-5/8 2-5/8
5/8
7/8
7/8
7/8
7/8
1-1/8
150,000
2-5/8 2-5/8 3-1/8 2-1/8 2-1/8 2-5/8 2-5/8 2-5/8 3-1/8 2-1/8 2-1/8 2-5/8 2-5/8 2-5/8 3-1/8
7/8
7/8
7/8
7/8
1-1/8 1-1/8
180,000
2-5/8 3-1/8 3-1/8 2-1/8 2-5/8 2-5/8 2-5/8 3-1/8 3-1/8 2-1/8 2-5/8 2-5/8 2-5/8 3-1/8 3-1/8
7/8
7/8
7/8
1-1/8 1-1/8 1-1/8
210,000
2-5/8 3-1/8 3-1/8 2-5/8 2-5/8 2-5/8 3-1/8 3-1/8 3-5/8 2-5/8 2-5/8 2-5/8 3-1/8 3-1/8 3-5/8
7/8
7/8
1-1/8 1-1/8 1-1/8 1-3/8
240,000
3-1/8 3-5/8 3-5/8 2-5/8 2-5/8 3-1/8 3-1/8 3-5/8 4-1/8 2-5/8 2-5/8 3-1/8 3-5/8 3-5/8 4-1/8
7/8
1-1/8 1-1/8 1-1/8 1-3/8 1-3/8
300,000
3-5/8 3-5/8 4-1/8 2-5/8 3-1/8 3-1/8 3-5/8 3-5/8 4-1/8 2-5/8 3-1/8 3-5/8 3-5/8 4-1/8 4-1/8 1-1/8 1-1/8 1-1/8 1-3/8 1-3/8 1-5/8
360,000
3-5/8 3-5/8 4-1/8 3-1/8 3-5/8 3-5/8 4-1/8 4-1/8 4-1/8 3-1/8 3-5/8 3-5/8 4-1/8 4-1/8 4-1/8 1-1/8 1-1/8 1-3/8 1-3/8 1-5/8 1-5/8
480,000
3-5/8 3-5/8 4-1/8 3-1/8 3-5/8 3-5/8 4-1/8 4-1/8 5-1/8 3-1/8 3-5/8 3-5/8 4-1/8 4-1/8 5-1/8 1-1/8 1-3/8 1-3/8 1-5/8 1-5/8 1-5/8
600,000