JOHNSON CONTROLS
120
FORM 150.62-NM6 (103)
Service and Troubleshooting
Entering Chilled Liquid Sensor
J6-6 = +5VDC regulated supply to sensor.
J6-9 = VDC input signal to the microboard.
See Table 38 for voltage readings that
correspond to specific liquid temperatures.
J6-3 = drain (shield connection = 0VDC)
Leaving Chilled Liquid Temp. Sensor
J6-5 = +5VDC regulated supply to sensor.
J6-8 = VDC input signal to the microboard.
See Table 38 for voltage readings that
correspond to specific liquid temperatures.
J6-2 = drain (shield connection = 0VDC)
Cooler Inlet Temperature
J5-12 = VDC input signal to microboard from Sys 1
Cooler Inlet Refrigerant Temp Sensor (R-407c
only).
J5-13 = VDC input signal to microboard from Sys 2
Cooler Inlet Refrigerant Temp Sensor (R-407c
only).
Suction Temp Sensor
J5-14 = VDC input signal to microboard from Sys 1
Suction Temp Sensor (EEV only).
J5-15 = VDC input signal to microboard from Sys 2
Suction Temp Sensor (EEV only).
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
TAbLE 38 –
ENTERING/LEAVING CHILLED
LIqUID TEMP. SENSOR, COOLER IN-
LET TEMPERATURE SENSOR, AND
SUCTION TEMPERATURE SENSOR:
TEMPERATURE/VOLTAGE/RESISTANCE
CORRELATION
Содержание York YCAL0014E Series
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