Johnson Controls York YCAL0014E Series, Installation, Operation & Maintenance Instructions Manual

Page: 120 / 216

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