Sensor - Trane TAMXB0A24V21DB Installation, Operation And Maintenance Manual

ET / GT and Supply Air Temperature Sensor
Table 31. Thermal Resistance and Voltage Table
THERMISTOR
TEMP
RESISTANCE
TEMP C
F Orange GAS TEMP
(OHMS) *
20 –6.67 45075.79
21 –6.11 43763.76
22 –5.56 42494.36
23 –5.00 41266.06
24 –4.44 40077.41
25 –3.89 38926.99
26 –3.33 37813.46
27 –2.78 36735.53
28 –2.22 35691.94
29 –1.67 34681.49
30 –1.11 33703.02
31 –0.56 32755.43
32 0.00 31837.65
33 0.56 30948.64
34 1.11 30087.41
35 1.67 29253.02
36 2.22 28444.53
37 2.78 27661.07
38 3.33 26901.79
39 3.89 26165.86
40 4.44 25452.49
41 5.00 24760.93
42 5.56 24090.44
43 6.11 23440.31
44 6.67 22809.87
45 7.22 22198.45
46 7.78 21605.43
47 8.33 21030.19
48 8.89 20472.15
49 9.44 19930.75
50 10.00 19405.43
51 10.56 18895.66
52 11.11 18400.95
53 11.67 17920.80
54 12.22 17454.74
55 12.78 17002.31
56 13.33 16563.08
57 13.89 16136.61
58 14.44 15622.51
59 15.00 15320.36
60 15.56 41929.80
61 16.11 14550.46
62 16.67 14181.97
63 17.22 13824.00
62
Volts DC at plug
J3 EVAP TEMP
(ET) Orange to TEMP
TEMP C
F
(GT) Black to
Black
1.89 64 17.78
1.88 65 18.33
1.88 66 18.89
1.87 67 19.44
1.86 68 20.00
1.85 69 20.56
1.84 70 21.11
1.83 71 21.67
1.82 72 22.22
1.81 73 22.78
1.79 74 23.33
1.78 75 23.89
1.77 76 24.44
1.75 77 25.00
1.74 78 25.56
1.72 79 26.11
1.71 80 26.67
1.69 81 27.22
1.67 82 27.78
1.66 83 28.33
1.64 84 28.89
1.62 85 29.44
1.60 86 30.00
1.58 87 30.56
1.57 88 31.11
1.55 89 31.67
1.53 90 32.22
1.51 91 32.78
1.49 92 33.33
1.47 93 33.89
1.45 94 34.44
1.43 95 35.00
1.41 96 35.56
1.39 97 36.11
1.37 98 36.67
1.35 99 37.22
1.33 100 37.78
1.31 101 38.33
1.29 102 38.89
1.27 103 39.44
1.25 104 40.00
1.23 105 40.56
1.21 106 41.11
1.19 107 41.67
Volts DC at plug
J3 EVAP TEMP
THERMISTOR
(ET) Orange to
RESISTANCE
Orange GAS TEMP
(OHMS) *
(GT) Black to
Black
13476.21 1.17
13138.29 1.15
12809.93 1.13
12490.82 1.11
12180.67 1.09
11878.94 1.07
11585.67 1.06
11300.63 1.04
11023.53 1.02
10754.14 1.00
10492.21 0.98
10237.51 0.96
9989.83 0.95
9748.93 0.93
9514.63 0.91
9287.72 0.89
9064.99 0.88
8849.27 0.86
8639.38 0.84
8435.31 0.83
8236.36 0.81
8042.90 0.80
7854.60 0.78
7671.30 0.77
7492.86 0.75
7319.12 0.74
7149.96 0.72
6985.24 0.71
6824.82 0.69
6668.58 0.68
6516.41 0.67
6368.17 0.65
6223.77 0.64
6083.08 0.63
5946.01 0.61
5812.44 0.60
5682.28 0.59
5555.43 0.58
5431.80 0.56
5311.29 0.55
5193.82 0.54
5079.31 0.53
4967.66 0.52
4858.80 0.51
THERMISTOR
TEMP
RESISTANCE
TEMP C
F Orange GAS TEMP
(OHMS) *
108 42.22 4752.65
109 42.78 4649.14
110 43.33 4548.19
111 43.89 4449.73
112 44.44 4353.70
113 45.00 4260.02
114 45.56 4168.63
115 46.11 4079.48
116 46.67 3992.49
117 47.00 3907.61
118 47.88 3824.78
119 48.33 3743.96
120 48.89 3665.67
121 49.44 3588.08
122 50.00 3512.92
123 50.56 3439.56
124 51.11 3367.95
125 51.67 3298.03
126 52.22 3229.76
127 52.78 3163.10
128 53.33 3098.01
129 53.89 3031.44
130 54.44 2972.36
131 55.00 2911.73
132 55.56 2852.50
133 56.11 2794.65
134 56.67 2738.13
135 57.22 2682.92
136 57.78 2928.98
137 58.33 2576.27
138 58.89 2524.77
139 59.44 2474.44
140 60.00 2425.25
141 60.56 2377.18
142 61.11 2330.20
143 61.67 2284.27
144 62.22 2239.38
145 62.78 2195.49
146 63.33 2152.59
147 63.89 2110.64
148 64.44 2069.63
149 65.00 2029.52
150 65.56 1990.31
Values should be within +/- 5%
18-GJ89D1-1F-EN
Volts DC at plug
J3 EVAP TEMP
(ET) Orange to
(GT) Black to
Black
0.50
0.49
0.48
0.47
0.46
0.45
0.44
0.43
0.42
0.41
0.40
0.40
0.39
0.38
0.37
0.36
0.36
0.35
0.34
0.34
0.33
0.32
0.31
0.31
0.30
0.30
0.29
0.28
0.28
0.27
0.27
0.26
0.26
0.25
0.25
0.24
0.24
0.23
0.23
0.22
0.22
0.21
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