Midea VRF Series Service Manual page 164

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Table 6-4.2: Compressor discharge pipe temperature sensor (T1C1) resistance characteristics
Temp.
Temp.
Resistance
(°C)
(°F)
(KΩ)
-20
-4
542.7
-19
-2.2
511.9
-18
-0.4
483
-17
1.4
455.9
-16
3.2
430.5
-15
5
406.7
-14
6.8
384.3
-13
8.6
363.3
-12
10.4
343.6
-11
12.2
325.1
-10
14
307.7
-9
15.8
291.3
-8
17.6
275.9
-7
19.4
261.4
-6
21.2
247.8
-5
23
234.9
-4
24.8
222.8
-3
26.6
211.4
-2
28.4
200.7
-1
30.2
190.5
0
32
180.9
1
33.8
171.9
2
35.6
163.3
3
37.4
155.2
4
39.2
147.6
5
41
140.4
6
42.8
133.5
7
44.6
127.1
8
46.4
121
9
48.2
115.2
10
50
109.8
11
51.8
104.6
12
53.6
99.69
13
55.4
95.05
14
57.2
90.66
15
59
86.49
16
60.8
82.54
17
62.6
78.79
18
64.4
75.24
19
66.2
71.86
20
68
68.66
21
69.8
65.62
22
71.6
62.73
23
73.4
59.98
24
75.2
57.37
25
77
54.89
26
78.8
52.53
27
80.6
50.28
28
82.4
48.14
29
84.2
46.11
30
86
44.17
31
87.8
42.33
Notes:
°C
1.
The Resistance of 25
Voltage
Temp.
Temp.
(V)
(°C)
0.0732
32
0.0775
33
0.0821
34
0.0869
35
0.0919
36
0.0972
37
0.1027
38
100.4
0.1085
39
102.2
0.1146
40
0.1210
41
105.8
0.1276
42
107.6
0.1346
43
109.4
0.1419
44
111.2
0.1496
45
0.1575
46
114.8
0.1659
47
116.6
0.1746
48
118.4
0.1836
49
120.2
0.1930
50
0.2030
51
123.8
0.2133
52
125.6
0.2239
53
127.4
0.2352
54
129.2
0.2468
55
0.2589
56
132.8
0.2715
57
134.6
0.2847
58
136.4
0.2982
59
138.2
0.3123
60
0.3270
61
141.8
0.3419
62
143.6
0.3577
63
145.4
0.3740
64
147.2
0.3908
65
0.4082
66
150.8
0.4262
67
152.6
0.4448
68
154.4
0.4640
69
156.2
0.4838
70
0.5043
71
159.8
0.5253
72
161.6
0.5470
73
163.4
0.5693
74
165.2
0.5923
75
0.6159
76
168.8
0.6402
77
170.6
0.6651
78
172.4
0.6908
79
174.2
0.7171
80
0.7440
81
177.8
0.7716
82
179.6
0.7998
83
181.4
°F)
(77
) is 10 KΩ±1%. The relation between voltage and resistance is: V=
Resistance
Voltage
(°F)
(KΩ)
(V)
89.6
40.57
0.8287
91.4
38.89
0.8584
93.2
37.3
0.8884
95
35.78
0.9193
96.8
34.32
0.9509
98.6
32.94
0.9829
31.62
1.0156
30.36
1.0489
104
29.15
1.0830
28
1.1176
26.9
1.1527
25.86
1.1881
24.85
1.2246
113
23.89
1.2613
22.89
1.3021
22.1
1.3362
21.26
1.3745
20.46
1.4130
122
19.69
1.4523
18.96
1.4915
18.26
1.5312
17.58
1.5718
16.94
1.6120
131
16.32
1.6530
15.73
1.6940
15.16
1.7356
14.62
1.7769
14.09
1.8194
140
13.59
1.8614
13.11
1.9036
12.65
1.9459
12.21
1.9882
11.79
2.0302
149
11.38
2.0730
10.99
2.1155
10.61
2.1585
10.25
2.2010
9.902
2.2436
158
9.569
2.2860
9.248
2.3284
8.94
2.3706
8.643
2.4127
8.358
2.4546
167
8.084
2.4963
7.82
2.5378
7.566
2.5790
7.321
2.6201
7.086
2.6608
176
6.859
2.7013
6.641
2.7413
6.43
2.7812
6.228
2.8205
V6R VRF 50/60Hz
Temp.
Temp.
Resistance
(°C)
(°F)
(KΩ)
84
183.2
6.033
85
185
5.844
86
186.8
5.663
87
188.6
5.488
88
190.4
5.32
89
192.2
5.157
90
194
5
91
195.8
4.849
92
197.6
4.703
93
199.4
4.562
94
201.2
4.426
95
203
4.294
96
204.8
4.167
97
206.6
4.045
98
208.4
3.927
99
210.2
3.812
100
212
3.702
101
213.8
3.595
102
215.6
3.492
103
217.4
3.392
104
219.2
3.296
105
221
3.203
106
222.8
3.113
107
224.6
3.025
108
226.4
2.941
109
228.2
2.86
110
230
2.781
111
231.8
2.704
112
233.6
2.63
113
235.4
2.559
114
237.2
2.489
115
239
2.422
116
240.8
2.357
117
242.6
2.294
118
244.4
2.233
119
246.2
2.174
120
248
2.117
121
249.8
2.061
122
251.6
2.007
123
253.4
1.955
124
255.2
1.905
125
257
1.856
126
258.8
1.808
127
260.6
1.762
128
262.4
1.717
129
264.2
1.674
130
266
1.632
8.06
*5
8.06+R
Voltage
(V)
2.8596
2.8984
2.9367
2.9746
3.0120
3.0491
3.0858
3.1219
3.1576
3.1928
3.2276
3.2621
3.2960
3.3292
3.3620
3.3945
3.4263
3.4577
3.4886
3.5190
3.5488
3.5781
3.6069
3.6355
3.6633
3.6905
3.7174
3.7440
3.7699
3.7951
3.8203
3.8447
3.8687
3.8922
3.9153
3.9379
3.9599
3.9818
4.0032
4.0240
4.0442
4.0641
4.0839
4.1030
4.1219
4.1401
4.1581
163

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