Hummer H1 Service Manual page 733

11-14 Heating/Ventilation/Air Conditioning (HVAC)
R-134a Pressure-to-Temperature Relationship Chart (with Engine OFF)
Temp (°F)
Psi
R-134a
0 -14.7
1 -12.1
2 -9.6
3 -7.2
4 -4.9
5 -2.7
6 -0.6
7 1.4
8 3.4
9 5.3
10 7.1
11 8.9
12 10.6
13 12.3
14 13.9
15 15.4
16 17.0
17 18.5
18 19.9
19 21.4
20 22.8
21 24.1
22 25.5
23 26.8
24 28.0
Temp (°F)
Psi
R-134a
25 29.3
26 30.5
27 31.7
28 32.9
29 34.0
30 35.1
32 37.4
34 39.5
36 41.6
38 43.6
40 45.6
42 47.4
44 49.2
46 51.0
48 52.8
50 54.5
52 56.4
54 57.8
56 59.3
58 60.8
60 62.4
62 63.9
64 65.4
66 66.8
68 68.2
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Temp (°F)
Psi
R-134a
70 69.6
75 72.9
80 76.1
85 79.2
90 82.2
95 85.0
100 87.8
105 90.5
110 93.1
115 95.6
120 98.0
125 100.4
130 102.7
135 104.9
140 107.1
145 109.3
150 111.4
155 113.3
160 115.4
165 117.4
170 119.3
175 121.2
180 123.0
185 124.8
190 126.6
Temp (°F)
Psi
R-134a
200 130.1
210 133.5
220 136.7
230 139.8
240 142.9
250 145.9
260 148.8
270 151.6
280 154.3
290 157.0
300 159.6
310 162.2
320 164.7
330 167.2
340 169.6
350 171.9
360 174.2
370 176.5
380 178.7
390 180.7
400 183.1
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