YORK INTERNATIONAL
16
PRESSURE / TEMPERATURE CHART
Refrigeration Overview
Borders mark typical operating ranges that can be expected
for suction and discharge pressures under moderate to full
load, 44°F setpoint, with ambient air temperatures between
90-100°F. This is only a guideline and readings beyond these
ranges will occur.
Vapor entering compressor should be superheated 12-15°F.
Liquid from condenser should be subcooled 12-15°F. Econo-
mizer heat exchanger will provide up to an additional 20-28°F
of sub-cooling when in operation.
This chart shows characteristics of Refrigerant R-22 (Monochlorodifluoromethane) when in the ‘saturated’ state.
Temperature (F)
Pressure (PSI
92
173.7
94
179.1
96
184.6
98
190.2
100
195.9
102
201.8
104
207.7
106
213.8
108
220.0
110
226.4
112
232.8
114
239.4
116
246.1
118
252.9
120
259.9
122
267.0
124
274.3
126
281.6
128
289.1
130
296.8
132
304.6
134
321.5
136
320.6
138
328.3
140
337.3
142
345.8
144
354.5
146
363.3
148
372.3
150
381.5
152
390.8
154
400.3
156
410.0
158
419.8
160
429.8
Temperature (F)
Pressure (PSIG)
0
24.0
2
25.6
4
27.3
6
29.1
8
30.9
10
32.8
12
34.7
14
36.7
16
38.7
18
40.9
20
43.0
22
45.3
24
47.6
26
50.0
28
52.4
30
54.9
32
57.5
34
60.1
36
62.8
38
65.6
40
68.5
42
71.5
44
74.5
46
77.6
48
80.8
50
84.0
52
87.4
54
90.2
56
94.3
58
97.9
60
101.6
62
105.4
64
109.3
66
113.2
68
117.3
70
121.4
72
125.7
74
130.0
76
134.5
78
139.0
80
143.6
82
148.4
84
153.2
86
158.2
88
163.2
90
168.4
SUCTION
DISCHARGE