Lennox LM012CI-100V433 Service Manual page 40

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Resistance at 25℃: 5 kΩ.
TH1: indoor room temperature sensor and outside air temperature sensor
TH2: indoor exchange temperature sensor and outside exchange
temperature sensor
Before measuring resistance, disconnect connectors as
shown above.
1) Outdoor unit sensor temperature characteristics
TEMP.
R min
R(t)
(k Ohm)
(k Ohm)
(℃)
-30
283.3
322.9
-29
267.4
304.4
-28
252.5
287.1
-27
238.5
270.9
-26
225.4
255.7
-25
213.1
241.4
-24
201.5
228
-23
190.6
215.5
-22
180.3
203.6
-21
170.7
192.5
-20
161.6
182.1
-19
153.1
172.3
-18
145
163.1
-17
137.5
154.4
-16
130.3
146.2
-15
123.6
138.5
-14
117.3
131.3
-13
111.3
124.4
-12
105.6
118
-11
100.3
111.9
-10
95.24
106.2
-9
90.49
100.8
-8
85.99
95.68
-7
81.75
90.86
-6
77.74
86.31
-5
73.94
82.01
-4
70.35
77.95
Air Conditioner Service Manual
R max
TEMP.
R min
(k Ohm)
(k Ohm)
(℃)
367.7
24
19.36
346.3
25
18.55
307.4
26
17.77
307.4
27
17.03
289.8
28
16.32
273.3
29
15.65
257.9
30
15
243.4
31
14.39
229.8
32
13.81
217
33
13.25
205
34
12.72
193.7
35
12.21
183.2
36
11.72
173.2
37
11.26
163.9
38
10.82
155.1
39
10.29
146.8
40
9.986
139
41
9.6
131.7
42
9.231
124.7
43
8.878
118.2
44
8.54
112.1
45
8.217
106.3
46
7.908
100.8
47
7.612
95.74
48
7.328
90.88
49
7.057
86.29
50
6.797
R(t)
R max
TEMP.
(k Ohm)
(k Ohm)
(℃)
20.89
22.52
78
20
21.54
79
19.14
20.6
80
18.32
19.7
81
17.55
18.85
82
16.81
18.04
83
16.1
17.27
84
15.43
16.54
85
14.79
15.34
86
14.18
15.17
87
13.6
14.54
88
13.05
13.93
89
12.52
13.36
90
12.01
12.81
91
11.53
12.29
92
11.07
11.78
93
10.63
11.31
94
10.21
10.85
95
9.813
10.42
96
9.43
10
97
9.064
9.612
98
8.714
9.233
99
8.38
8.872
100
8.06
8.526
101
7.754
8.196
102
7.461
7.88
103
7.18
7.578
104
R min
R(t)
R max
(k Ohm)
(k Ohm)
(k Ohm)
2.563
2.654
2.745
2.481
2.567
2.654
2.402
2.484
2.567
2.327
2.404
2.483
2.254
2.327
2.401
2.183
2.253
2.323
2.115
2.182
2.248
2.05
2.113
2.176
1.985
2.047
2.109
1.922
1.983
2.045
1.861
1.922
1.983
1.802
1.862
1.923
1.746
1.805
1.865
1.692
1.75
1.809
1.639
1.697
1.755
1.589
1.646
1.703
1.54
1.596
1.653
1.493
1.549
1.604
1.448
1.502
1.558
1.404
1.458
1.512
1.362
1.415
1.469
1.321
1.373
1.426
1.284
1.335
1.387
1.245
1.296
1.348
1.209
1.258
1.309
1.173
1.222
1.272
1.139
1.187
1.236

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