Using the pressure temperature chart below, match the refrigerant with its correct pressure at 40°F.
REFRIGERANT
REFRIGERANT
REFRIGERANT
TEMP
_____________________
TEMP
______________________
TEMP
________________________
°F
12
22
134a
502
°F
12
22
134a
502
°F
12
22
134a
502
-60
19.0
12.0
7.2
12
15.8
34.7
13.2
43.2
42
38.8
71.4
37.0
83.8
-55
17.3
9.2
3.8
13
16.4
35.7
13.8
44.3
43
39.8
73.0
38.0
85.4
-50
15.4
6.2
0.2
14
17.1
36.7
14.4
45.4
44
40.7
74.5
39.0
87.0
-45
13.3
2.7
1.9
15
17.7
37.7
15.1
46.5
45
41.7
76.0
40.1
88.7
-40
11.0
0.5
14.7
4.1
16
18.4
38.7
15.7
47.7
46
42.6
77.6
41.1
90.4
-35
8.4
2.6
12.4
6.5
17
19.0
39.8
16.4
48.8
47
43.6
79.2
42.2
92.1
-30
5.5
4.9
9.7
9.2
18
19.7
40.8
17.1
50.0
48
44.6
80.8
43.3
93.9
-25
2.3
7.4
6.8
12.1
19
20.4
41.9
17.7
51.2
49
45.7
82.4
44.4
95.6
-20
0.6
10.1
3.6
15.3
20
21.0
43.0
18.4
52.4
50
46.7
84.0
45.5
97.4
-18
1.3
11.3
2.2
16.7
21
21.7
44.1
19.2
53.7
55
52.0
92.6
51.3
106.6
-16
2.0
12.5
0.7
18.1
22
22.4
45.3
19.9
54.9
60
57.7
101.6
57.3
116.4
-14
2.8
13.8
0.3
19.5
23
23.2
46.4
20.6
56.2
65
63.8
111.2
64.1
126.7
-12
3.6
15.1
1.2
21.0
24
23.9
47.6
21.4
57.5
70
70.2
121.4
71.2
137.6
-10
4.5
16.5
2.0
22.6
25
24.6
48.8
22.0
58.8
75
77.0
132.2
78.7
149.1
-8
5.4
17.9
2.8
24.2
26
25.4
49.9
22.9
60.1
80
84.2
143.6
86.8
161.2
-6
6.3
19.3
3.7
25.8
27
26.1
51.2
23.7
61.5
85
91.8
155.7
95.3
174.0
-4
7.2
20.8
4.6
27.5
28
26.9
52.4
24.5
62.8
90
99.8
168.4
104.4
187.4
-2
8.2
22.4
5.5
29.3
29
27.7
53.6
25.3
64.2
95
108.2
181.8
114.0
201.4
0
9.2
24.0
6.5
31.1
30
28.4
54.9
26.1
65.6
100
117.2
195.9
124.2
216.2
1
9.7
24.8
7.0
32.0
31
29.2
56.2
26.9
67.0
105
126.6
210.8
135.0
231.7
2
10.2
25.6
7.5
32.9
32
30.1
57.5
27.8
68.4
110
136.4
226.4
146.4
247.9
3
10.7
26.4
8.0
33.9
33
30.9
58.8
28.7
69.9
115
146.8
242.7
158.5
264.9
4
11.2
27.3
8.6
34.9
34
31.7
60.1
29.5
71.3
120
157.6
259.9
171.2
282.7
5
11.8
28.2
9.1
35.8
35
32.6
61.5
30.4
72.8
125
169.1
277.9
184.6
301.4
6
12.3
29.1
9.7
36.8
36
33.4
62.8
31.3
74.3
130
181.0
296.8
198.7
320.8
7
12.9
30.0
10.2
37.9
37
34.3
64.2
32.2
75.8
135
193.5
316.6
213.5
341.2
8
13.5
30.9
10.8
38.9
38
35.2
65.6
33.2
77.4
140
206.6
337.2
229.1
362.6
9
14.0
31.8
11.4
39.9
39
36.1
67.1
34.1
79.0
145
220.3
358.9
245.5
385.0
10
14.6
32.8
11.9
41.0
40
37.0
68.5
35.1
80.5
150
234.6
381.5
262.7
408.4
11
15.2
33.7
12.5
42.1
41
37.9
70.0
36.0
82.1
155
249.5
405.1
280.7
432.9
A. 37 psig
B. 35.1 psig
C. 80.5 psig
D. 68.5 psig
A. R-12
B. R-134a
C. R-502
D. R-22
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