York YK-EP Operation And Maintenance Manual page 265

Figure 93: Configurable analog and remote setpoint inputs (heat pump duty)
LEAVING CHILLED
LIQUID TEMPRERATURE
THERMISTOR
REMOTE CURRENT
LIMIT SETPOINT
REMOTE LEAVING
CHILLED LIQUID
TEMP SETPOINT
REMOTE SETPOINT
GND CONNECTIONS
Note:
1. Program Jumper JP21 must be positioned on pins 2-3. (Thermal type Evaporator flow
sensor for chillers produced before June 2009 and Leaving Chilled Liquid Temperature
sensor for Heat Pump Duty chillers.)
YK-EP Style B Centrifugal Chiller
J7
71.5 K
2
14
15
+5V
13
7.5 K
4
16
17
+5V
3
J22
1
0-10 VDC /
2-10 VDC
2
0-20 mA /
4-20 mA
3
0-10 VDC /
2-10 VDC
4
0-20 mA /
4-20 mA
5
2
1
47K
JP21
3
200
2
1
JP22
3
2
1
JP23
3
2
1
JP24
3
MUX
LD22056
265