York YK-EP Operation And Maintenance Manual page 264

Figure 92: Configurable analog and remote setpoint inputs
FACTORY MOUNTED EVAPORATOR
THERMAL-TYPE FLOW SENSOR
(style F and later chillers) (note 2)
3 1
24 VAC
FACTORY MOUNTED CONDENSER
THERMAL-TYPE FLOW SENSOR
(style F and later chillers) (note 2)
3 1
24 VAC
REMOTE CURRENT
LIMIT SETPOINT
REMOTE LEAVING
CHILLED LIQUID
TEMP SETPOINT
REMOTE SETPOINT
GND CONNECTIONS
Note:
1. Program Jumpers JP23 – JP24 must be positioned on pins 1-2 or 2-3 according to input
signal type. (Voltage OUT, Current 1-2, 2-3 Not Used)
2. On new production chillers prior to June 2009, the Thermal type flow sensors are
connected to Microboard J7 as shown above. Program Jumpers JP21 and JP22 must be on
pins 2-3. On new production chillers after June 2009, the Thermal type flow sensors are
connected to Microboard J14 (Refer to Figure 94).
3. Factory mounted evaporator Thermal type flow sensor (new production chillers prior to
June 2009) or Leaving Chilled Liquid Temperature Thermistor (chillers equipped with the
optional Heat Pump Duty feature)
264
J7
71.5 K
2
2 14
15
4
+5V
13
4
2 16
17
4
+5V
3
J22
1
0-10 VDC /
2-10 VDC
2
0-20 mA /
4-20 mA
0-10 VDC / 3
2-10 VDC
4
0-20 mA /
4-20 mA
5
2
1
JP21
3
200
7.5 K
2
1
JP22
3
2
1
JP23
3
2
1
JP24
3
47K
MUX
LD22055
YK-EP Style B Centrifugal Chiller