York YK-EP Operation And Maintenance Manual page 246

JP23*
Remote Current Limit setpoint (J22) type.Configures Analog Input for 0 to 10VDC, 2 to 10VDC, 0 to
20mA or 4 to 20mA.
OUT: Allows 0 to 10VDC or 2 to 10VDC input on J22-1.
•
Pins 1-2: Allows a 0 to 20mA or 4 to 20mA input on J22-2.
•
Pins 2-3: Not used.
•
JP24*
Remote Leaving Chilled Liquid Temperature setpoint (J22) type. Configures Analog Input for 0 to
10VDC, 2 to 10VDC, 0 to 20mA or 4 to 20mA.
• OUT: Allows 0 to 10VDC or 2 to 10VDC input on J22-3.
• Pins 1-2: Allows a 0 to 20mA or 4 to 20mA input on J22-4.
• Pins 2-3: Not used.
JP25*
DC Undervoltage signal for Proximity Probe.
Pins 1-2: Correct position for YKEP
•
Pins 2-3: Not Used
•
JP26
Applies a pull-down voltage to COM6 RS-485 - termnal.
• Pins 1-2: Not used.
• Pins 2-3: Normal position - no bias applied.
JP27
Applies a pull-down voltage to the COM5B - terminal.
• IN: Not used.
• OUT: Normal position - no bias applied.
JP28
Applies a 120 Ohm terminating resistor across the COM5B RS-485 port.
IN: Not Used.
•
OUT: Normal position - no bias applied.
•
JP29
Applies a pull-up voltage to the COM5B + terminal.
• IN: Not used.
• OUT: Normal position - no bias applied.
246 YK-EP Style B Centrifugal Chiller