Table 22 - Entering/Leaving Chilled Liquid Temp. Sensor, Temperature / Voltage Correlation - Quantech QWC3050T-200T Installation Operation & Maintenance

SECTION 9 – SERVICE AND TROUBLESHOOTING
TABLE 22 - ENTERING/LEAVING CHILLED LIQUID
TEMP. SENSOR, TEMPERATURE / VOLTAGE COR-
RELATION
VOLTAGE
TEMP °F (SIGNAL INPUT
TO RETURN)
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
46
48
50
52
54
56
58
60
62
64
66
68
70
72
74
76
78
80
158
TEMP °C
1.33 -12
1.39 -11
1.46 -10
1.51 -9
1.58 -8
1.65 -7
1.71 -6
1.78 -4
1.85 -3
1.91 -2
1.98 -1
2.05 0
2.12 1
2.19 2
2.26 3
2.33 4
2.40 6
2.47 7
2.53 8
2.60 9
2.65 10
2.73 11
2.80 12
2.86 13
2.92 14
2.98 16
3.05 17
3.11 18
3.17 19
3.23 20
3.29 21
3.34 22
3.39 23
3.45 24
3.5 26
3.54 27
Liquid and Refrigerant Sensor Test Points
(Table 22 on page 158)
Entering Chilled Liquid Sensor
J6-5 = +5VDC regulated supply to sensor.
J6-8 = VDC input signal to the I/O board. See Table
22 on page 158 for voltage readings that cor-
respond to specific liquid temperatures.
J6-2 = drain (shield connection = 0VDC) Return
Leaving Chilled Liquid Temperature Sensor
J6-4 = +5VDC regulated supply to sensor.
J6-7 = VDC input signal to the microboard. See Table
22 on page 158 for voltage readings that cor-
respond to specific liquid temperatures.
J6-1 = drain (shield connection = 0VDC) Return
FORM QWC3-NM1
ISSUE DATE: 11/20/2020
QUANTECH