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TABLE 3 – DISCHARGE AND LIQUID LINE CAPACITIES IN TONS FOR REFRIGERANT 22
DISCHARGE LINES (∆t = 1°F, ∆p = 3.03 PSI)
LINE SIZE
TYPE L
SATURATED SUCTION TEMPERATURE, °F
COPPER, O.D.
-40
1/2
0.75
5/8
1.4
3/4
2.4
7/8
3.7
1-1/8
7.5
1-3/8
13.1
1-5/8
20.6
2-1/8
42.7
2-5/8
75.3
3-1/8
119.9
3-5/8
177.9
4-1/8
250.6
5-1/8
447.0
6-1/8
717.1
STEEL
IPS
SCH
1/2
40
1.5
3/4
40
3.3
1
40
6.1
1-1/4
40
12.7
1-1/2
40
19.0
2
40
36.6
2-1/2
40
58.3
3
40
103.0
4
40
209.6
5
40
378.3
6
40
611.1
Capacities are in tons of refrigeration.
∆
p = Pressure drop due to line friction, psi per 100 feet equivalent
length.
∆
t = Change in saturation temperature corresponding to pressure
drop, °F per 100 feet.
Line capacity for other saturation temperatures
lengths L.
Line capacity = Table capacity
∆
t for other capacities and equivalent lengths L
Saturation temperature
∆t =Table ∆t
Actual L
(
(
e
Table L
e
The refrigerant cycle for determining capacity is based on saturated
gas leaving the evaporator and no subcooling in the condenser. Dis-
charge superheat is 105°F. The saturated suction temperature is
40°F for liquid line sizing.
YORK INTERNATIONAL
-20
0
0.78
0.8
1.5
1.5
2.5
2.6
3.8
4.0
7.8
8.0
13.5
14.0
14.4
21.4
22.1
22.8
44.2
45.7
47.1
78.0
80.6
83.1
124.3
128.4
132.3
184.4
190.6
196.3
259.7
268.4
276.5
463.3
478.7
493.2
743.2
768.0
791.2
1.6
1.7
3.4
3.5
6.4
6.6
13.1
13.6
14.0
19.7
20.3
21.0
37.9
39.2
40.4
60.4
62.5
64.3
106.7
110.3
113.6
217.3
224.5
231.3
392.1
405.2
417.4
633.3
654.4
674.1
∆
t and equivalent
∆
Table L
x
Actual
t
(
(
e
∆
Actual L
Table
t
e
1.8
Actual Capacity
Table Capacity
LINE SIZE
TYPE L
20
40
COPPER, O.D.
0.83
0.85
1/2
1.6
1.6
5/8
2.6
2.7
3/4
4.1
4.2
7/8
8.3
8.5
1-1/8
14.8
1-3/8
23.4
1-5/8
48.4
2-1/8
85.3
2-5/8
135.9
3-1/8
201.6
3-5/8
283.9
4-1/8
506.4
5-1/8
812.5
6-1/8
IPS
1.7
1.8
1/2
3.6
3.7
3/4
6.8
7.0
1
14.3
1-1/4
21.5
1-1/2
41.5
2
66.1
2-1/2
116.7
3
237.5
4
428.6
5
692.3
6
Multiply table capacities by the following factors for
condensing temperatures other than 105°F.
CONDENSING
TEMPERATURE, °F
80
0.55
90
100
e
110
120
130
140
FORM 201.25-NM1 (302)
LIQUID LINES
VEL. = 100
∆p = 3.03
FPM
2.4
3.8
5.7
8.0
13.6
20.7
29.3
51.0
78.7
112.3
151.8
197.4
307.6
442.2
SCH
80
3.9
80
7.1
80
11.9
80
21.1
80
29.1
40
55.3
40
78.9
40
121.8
40
209.8
40
329.7
40
476.2
SUCTION
DISCHARGE
LINE
1.12
1.07
1.03
0.97
0.92
0.87
0.82
∆t = 1°F
3.7
7.0
12.0
18.6
37.8
66.1
104.7
217.5
385.0
615.0
914.6
1291.0
–
–
5.8
13.1
25.8
55.4
84.5
196.5
313.4
554.0
1129.0
2039.0
3294.0
LINE
0.82
0.89
0.96
1.03
1.10
1.16
1.22
LD07757
23
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