CPS AR2700A Manuale operativo - Pagina 14
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Maximum Refrigerant Vapor Pressure Chart (Temp F/C vs. Pressure psig)
Temperature
F
C
R-12
32.0
0.0
40.1
34.0
1.1
41.7
36.0
2.2
43.4
38.0
3.3
45.2
40.0
4.4
46.9
42.0
5.6
48.8
44.0
6.7
50.7
46.0
7.8
52.7
48.0
8.9
54.7
50.0
10.0
56.7
52.0
11.1
58.8
54.0
12.2
61.0
56.0
13.3
63.2
58.0
14.4
65.4
60.0
15.6
67.7
62.0
16.7
70.1
64.0
17.8
72.5
66.0
18.9
75.0
68.0
20.0
77.6
70.0
21.1
80.2
72.0
22.2
82.9
74.0
23.3
85.6
76.0
24.4
88.4
78.0
25.6
91.3
80.0
26.7
94.2
82.0
27.8
97.2
84.0
28.9
100.2
86.0
30.0
103.3
88.0
31.1
106.5
90.0
32.2
109.8
92.0
33.3
113.1
94.0
34.4
116.5
96.0
35.6
120.0
98.0
36.7
123.5
100.0
37.8
127.2
102.0
38.9
130.9
104.0
40.0
134.7
106.0
41.1
138.5
108.0
42.2
142.4
110.0
43.3
146.4
Refrigerant Vapor Pressure (psig)
R-134a
R-22
R-502
37.8
67.5
78.4
39.5
70.1
81.3
41.3
72.8
84.3
43.2
75.6
87.4
45.1
78.5
90.5
47.0
81.5
93.8
49.1
84.5
97.0
51.1
87.6
100.4
53.3
90.7
103.9
55.5
94.0
107.4
57.7
97.3
111.0
60.1
100.8
114.8
62.3
104.3
118.6
65.0
107.9
122.4
67.5
111.6
126.4
70.1
115.4
130.4
72.7
119.3
134.6
75.5
123.2
138.8
78.3
127.3
143.2
81.2
131.4
147.6
84.2
135.7
152.2
87.2
140.0
156.8
90.3
144.5
161.5
93.5
149.0
166.3
96.8
153.6
171.2
100.2
158.4
176.2
103.6
163.2
181.4
107.1
168.2
186.6
110.7
173.2
191.9
114.4
178.4
197.4
118.2
183.7
202.9
122.1
189.1
208.6
126.1
194.6
214.3
130.1
200.2
220.2
134.3
205.9
226.2
138.5
211.8
232.3
142.9
217.7
238.5
147.3
223.8
244.9
152.8
230.0
251.3
156.5
236.4
257.9
Bold - indicates liquid pressure due to blend
14
R-404a R-402a R-401a R-407c R-409a
82.3
88.3
37.9
85.4
91.6
39.6
88.5
95.0
41.3
91.8
98.5
43.2
95.1
102.1
45.0
98.5
105.7
47.0
101.9
109.5
49.0
105.5
113.4
51.0
109.2
117.3
53.1
112.9
121.4
55.3
119.0
130.0
70.0
123.0
134.0
72.0
127.0
139.0
75.0
131.0
143.0
78.0
135.0
148.0
80.0
140.0
152.0
83.0
144.0
157.0
86.0
149.0
162.0
89.0
154.0
167.0
92.0
158.0
170.4
95.0
163.0
178.0
99.0
168.0
183.0
102.0
174.0
189.0
105.0
179.0
194.0
109.0
184.0
200.0
112.0
190.0
203.6
116.0
195.0
212.0
119.0
201.0
218.0
123.0
207.0
224.0
127.0
213.0
230.0
131.0
219.0
237.0
135.0
225.0
244.0
139.0
232.0
250.0
143.0
239.0
257.0
148.0
245.0
264.0
152.0
252.0
271.0
156.0
259.0
279.0
161.0
266.0
286.0
166.0
274.0
294.0
170.0
281.0
302.0
175.0
68.2
37.6
73.4
39.2
79.0
40.9
83.1
42.7
86.5
44.5
89.5
46.3
93.1
48.2
96.3
50.2
101.0
52.2
104.5
54.3
108.2
73.6
112.3
76.2
116.5
78.9
120.7
81.6
124.9
84.5
129.2
87.3
133.5
90.3
138.2
93.3
143.0
96.4
147.6
99.5
152.2
102.8
157.1
106.0
162.0
109.4
168.0
112.9
174.1
116.4
180.6
120.0
186.6
123.7
192.2
127.4
198.4
131.2
204.6
135.1
210.6
139.1
216.6
143.2
222.6
147.4
228.6
151.6
234.6
156.0
240.7
160.4
246.8
164.9
252.9
169.5
259.0
174.2
265.1
179.0