Carrier 38VMA Series Service Manual page 90

Outdoor unit for variable refrigerant flow (vrf) heat pump system
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Table 36 - Low Pressure Sensor Voltage Characteristics*
Resistance (KΩ)
Low pressure (psi)
14.5
16.0
17.4
18.9
20.3
21.8
23.2
24.7
26.1
27.6
30.5
31.9
33.4
34.8
37.7
39.2
42.1
43.5
46.4
47.9
50.8
53.7
55.1
58.0
60.9
63.8
66.7
69.6
72.5
75.4
78.3
81.2
84.1
88.5
91.4
94.3
* Outdoor unit: Low pressure sensor
Output voltage(V)
49.51
0.70
47.91
0.72
46.40
0.74
44.97
0.76
43.61
0.78
42.31
0.80
41.09
0.82
39.92
0.84
38.80
0.86
37.73
0.88
35.74
0.92
34.81
0.94
33.92
0.96
33.06
0.98
31.45
1.02
30.69
1.04
29.25
1.08
28.58
1.10
27.29
1.14
26.68
1.16
25.52
1.20
24.44
1.24
23.92
1.26
22.94
1.30
22.015
1.34
21.14
1.38
20.32
1.42
19.54
1.46
18.81
1.50
18.11
1.54
17.45
1.58
16.82
1.62
16.22
1.66
15.37
1.72
14.84
1.76
14.33
1.80
Resistance (KΩ)
Output voltage(V)
13.61
1.86
13.15
1.90
12.50
1.96
11.89
2.02
11.50
2.06
10.95
2.12
10.43
2.18
9.93
2.24
9.46
2.30
9.02
2.36
8.59
2.42
8.19
2.48
7.81
2.54
7.32
2.62
6.98
2.68
6.54
2.76
6.23
2.82
5.84
2.90
5.46
2.98
5.20
3.04
4.86
3.12
4.53
3.20
4.23
3.28
3.93
3.36
3.59
3.46
3.32
3.54
3.07
3.62
2.77
3.72
2.54
3.80
2.27
3.90
2.01
4.00
1.77
4.10
1.53
4.20
1.31
4.30
1.10
4.40
0.89
4.50
90

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