Carrier 38VMA Series, Service Manual, Page: 89 / 112

Table 35 - Resistance of Temperature sensor B **
Temp.
(°F)
Resistance
(KΩ)
Voltage
(V)
Temp.
(°F)
Resistance
(KΩ)
Voltage
(V)
Temp.
(°F)
Resistance
(KΩ)
Voltage
(V)
-4.0 542.70 0.07 89.6 40.57 0.83 183.2 6.03 2.86
-2.2 511.90 0.08 91.4 38.89 0.86 185.0 5.84 2.90
-0.4 483.00 0.08 93.2 37.30 0.89 186.8 5.66 2.94
1.4 455.90 0.09 95.0 35.78 0.92 188.6 5.49 2.97
3.2 430.50 0.09 96.8 34.32 0.95 190.4 5.32 3.01
5.0 406.70 0.10 98.6 32.94 0.98 192.2 5.16 3.05
6.8 384.30 0.10 100.4 31.62 1.01 194.0 5.00 3.08
8.6 363.30 0.11 102.2 30.36 1.05 195.8 4.85 3.12
10.4 343.60 0.11 104.0 29.15 1.08 197.6 4.70 3.16
12.2 325.10 0.12 105.8 28.00 1.12 199.4 4.56 3.19
14.0 307.70 0.13 107.6 26.90 1.15 201.2 4.43 3.23
15.8 291.30 0.13 109.4 25.86 1.19 203.0 4.29 3.26
17.6 275.90 0.14 111.2 24.85 1.22 204.8 4.17 3.30
19.4 261.40 0.15 113.0 23.89 1.26 206.6 4.04 3.33
21.2 247.80 0.16 114.8 22.89 1.30 208.4 3.93 3.36
23.0 234.90 0.16 116.6 22.10 1.34 210.2 3.81 3.39
24.8 222.80 0.17 118.4 21.26 1.37 212.0 3.70 3.43
26.6 211.40 0.18 120.2 20.46 1.41 213.8 3.59 3.46
28.4 200.70 0.19 122.0 19.69 1.45 215.6 3.49 3.49
30.2 190.50 0.20 123.8 18.96 1.49 217.4 3.39 3.52
32.0 180.90 0.21 125.6 18.26 1.53 219.2 3.30 3.55
33.8 171.90 0.22 127.4 17.58 1.57 221.0 3.20 3.58
35.6 163.30 0.23 129.2 16.94 1.61 222.8 3.11 3.61
37.4 155.20 0.25 131.0 16.32 1.65 224.6 3.02 3.63
39.2 147.60 0.26 132.8 15.73 1.69 226.4 2.94 3.66
41.0 140.40 0.27 134.6 15.16 1.73 228.2 2.86 3.69
42.8 133.50 0.28 136.4 14.62 1.78 230.0 2.78 3.72
44.6 127.10 0.30 138.2 14.09 1.82 231.8 2.70 3.74
46.4 121.00 0.31 140.0 13.59 1.86 233.6 2.63 3.77
48.2 115.20 0.33 141.8 13.11 1.90 235.4 2.56 3.79
50.0 109.80 0.34 143.6 12.65 1.94 237.2 2.49 3.82
51.8 104.60 0.36 145.4 12.21 1.99 239.0 2.42 3.84
53.6 99.69 0.37 147.2 11.79 2.03 240.8 2.36 3.87
55.4 95.05 0.39 149.0 11.38 2.07 242.6 2.29 3.89
57.2 90.66 0.41 150.8 10.99 2.11 244.4 2.23 3.91
59.0 86.49 0.43 152.6 10.61 2.16 246.2 2.17 3.94
60.8 82.54 0.44 154.4 10.25 2.20 248.0 2.12 3.96
62.6 78.79 0.46 156.2 9.90 2.24 249.8 2.06 3.98
64.4 75.24 0.48 158.0 9.57 2.29 251.6 2.01 4.00
66.2 71.86 0.50 159.8 9.25 2.33 253.4 1.95 4.02
68.0 68.66 0.52 161.6 8.94 2.37 255.2 1.90 4.04
69.8 65.62 0.55 163.4 8.64 2.41 257.0 1.86 4.06
71.6 62.73 0.57 165.2 8.36 2.45 258.8 1.81 4.08
73.4 59.98 0.59 167.0 8.08 2.50 260.6 1.76 4.10
75.2 57.37 0.61 168.8 7.82 2.54 262.4 1.72 4.12
77.0 54.89 0.64 170.6 7.57 2.58 264.2 1.67 4.14
78.8 52.53 0.66 172.4 7.32 2.62 266.0 1.63 4.15
80.6 50.28 0.69 174.2 7.09 2.66
82.4 48.14 0.72 176.0 6.86 2.70
84.2 46.11 0.74 177.8 6.64 2.74
86.0 44.17 0.77 179.6 6.43 2.78
87.8 42.33 0.80 181.4 6.23 2.82
** Outdoor unit: INV Gas, INV1 Gas
The Resistance of 194°F
is 5KΩ±3%. The relation between voltage and resistance is:
V
=
8.06
8.06+𝑅𝑅
*5
89