York YCAL0014E Series, Installation Operation & Maintenance

Page: 132 / 212

JOHNSON CONTROLS
132
FORM 150.62-NM8 (1020)
SERVICE AND TROUBLESHOOTING
Entering Chilled Liquid Sensor
J6-5 = +5VDC regulated supply to sensor.
J6-8 = VDC input signal to the I/O Board. (
See Table
38 for voltage readings that correspond to specific
liquid temperatures.)
J6-2 = drain (shield connection = 0VDC)
Leaving Chilled Liquid Temp. Sensor
J6-4 = +5VDC regulated supply to sensor.
J6-7 = VDC input signal to the I/O Board.
(See Table
38 for voltage readings that correspond to specific
liquid temperatures.)
J6-1 = drain (shield connection = 0VDC)
Suction Temp Sensor
J8-5 = +5VDC regulated to sensor
J8-8 = VDC input signal to I/O Board from Sys 1
Suction Temp Sensor (EEV only)
J8-1 = Drain (shield connection = 0VDC)
J10-5 = +5VDC regulated to sensor
J10-8 = Suction Temp Sensor (EEV only)
J10-2 = Drain (shield connection = 0VDC)
TABLE 38 – ENTERING/LEAVING CHILLED
LIQUID TEMP. SENSOR,
COOLER INLET TEMPERATURE
SENSOR, AND SUCTION
TEMPERATURE SENSOR:
TEMPERATURE/VOLTAGE/
RESISTANCE CORRELATION
TEMP °F VOLTAGE
RESIS-
TANCE
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