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JOHNSON CONTROLS
102
FORM 150.63-NM8 (1020)
SERVICE AND TROUBLESHOOTING
Suction Temperature Sensor - System 1
J8-5
= +5 VDC
regulated supply to sensor.
J8-8
=
VDC
input signal to the I/O Board.
See
Table 31 for voltage readings that correspond
to specific suction temperatures.
J8-2 = drain (shield connection = 0 VDC)
TABLE 31
– SUCTION TEMP. SENSOR
TEMPERATURE/VOLTAGE/
RESISTANCE CORRELATION
TEMP °F
VOLTAGE
RESISTANCE
TEMP °C
0
1.71
25619
-18
2
1.78
24046
-17
4
1.85
22580
-16
6
1.93
21214
-14
8
2.00
19939
-13
10
2.07
18749
-12
12
2.15
17637
-11
14
2.22
16599
-10
16
2.30
15629
-9
18
2.37
14721
-8
20
2.45
13872
-7
22
2.52
13077
-6
24
2.59
12333
-4
26
2.67
11636
-3
28
2.74
10982
-2
30
2.81
10370
-1
32
2.88
9795
0
34
2.95
9256
1
36
3.02
8750
2
38
3.08
8276
3
40
3.15
7830
4
42
3.21
7411
6
44
3.27
7017
7
46
3.33
6647
8
48
3.39
6298
9
50
3.45
5970
10
52
3.51
5661
11
54
3.56
5370
12
56
3.61
5096
13
58
3.67
4837
14
60
3.72
4593
16
62
3.76
4363
17
64
3.81
4145
18
66
3.86
3941
19
68
3.90
3747
20
70
3.94
3564
21
72
3.98
3392
22
74
4.02
3228
23
76
4.06
3074
24
78
4.10
2928
26
80
4.13
2790
27
Suction Temperature Sensor - System 2
J10-5
= +5 VDC
regulated supply to sensor.
J10-8
=
VDC
input signal to the I/O Board.
See Table
31 for voltage readings that correspond to
specific suction temperatures.
J10-2
= drain (shield connection = 0
VDC
)
Содержание YCUL0045E
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