Refrigerant Line Capacities for R22

HVAC Systems & Components

Refrigerant Line Capacities for R22

Tons for 100 ft. - Type L. Copper, Suction Lines, Δt = 2°F

 
Saturated Suction Temp.
°F/Δp
Discharge Lines
Δt 1°F
Liquid Lines
Size
-40
-20
0
20
40
0
Δ t 1°F
O.D.
0.79
1.15
1.6
2.2
2.9
1/2
-
-
-
0.40
0.6
0.8
3.6
5/8
-
0.32
0.51
0.76
1.1
1.5
6.7
7/8
0.52
0.86
1.3
2.0
2.9
4.0
18.2
1-1/8
1.1
1.7
2.7
4.0
5.8
8.0
37.0
1-3/8
1.9
3.1
4.7
7.0
10.1
14.0
64.7
1-5/8
3.0
4.8
7.5
11.1
16.0
22.0
102
2-1/8
6.2
10.0
15.6
23.1
33.1
45.6
213
2-5/8
10.9
17.8
27.5
40.8
58.3
80.4
377
3-1/8
17.5
28.4
44.0
65.0
92.9
128
602
3-5/8
26.0
42.3
65.4
96.6
138
190
896
4-1/8
36.8
59.6
92.2
136
194
268
1263
5-1/8
60.0
107
164
244
347
478
-
  • Adapted from ASHRAE HVAC Refrigeration Handbook
  • Tables are based on 105°F condensing temperature. Note that refrigerant temperature has minimal effect on discharge line size. Steel pipe has approximate same capacity as Type L. copper 1/8” larger