Analog Input Connections; Table 24 - Serial Port Connections; Table 25 - Analog Input Connections - York YCIV Series Installation Operation & Maintenance

FORM 201.23-NM2
ISSUE DATE: 09/25/2020

TABLE 24 - SERIAL PORT CONNECTIONS

BOARD
Chiller Control Board
Chiller Control Board
VSD Logic Board

ANALOG INPUT CONNECTIONS

Table 25 on page 285 lists the Analog inputs and the
circuit board they are located on. Not all of the sen-
sors are installed in every unit, as some of them are
optional. The software must read the optional sensors
if installed. The Analog input signals are typically ref-
erenced to the common (return, ground) in the system.

TABLE 25 - ANALOG INPUT CONNECTIONS

BOARD
Chiller Control Board
Chiller Control Board
Chiller Control Board
Chiller Control Board
Chiller Control Board
Chiller Control Board
Chiller Control Board
Chiller Control Board
Chiller Control Board
Chiller Control Board
Chiller Control Board
Chiller Control Board
Chiller Control Board
Chiller Control Board
Chiller Control Board
Chiller Control Board
Chiller Control Board
Chiller Control Board
Chiller Control Board
Chiller Control Board
Chiller Control Board
Chiller Control Board
Chiller Control Board
Chiller Control Board
Chiller Control Board
Chiller Control Board
Chiller Control Board
Chiller Control Board
Chiller Control Board
JOHNSON CONTROLS
HEADER PORT TYPE
TB1 / TB2 RS-232 / RS-485
J2 / J1 RS-485
J12 Opto- Coupled RS-485
J12-3 can also be used as common, as well as chassis
ground, or the common terminal point on the Chiller
Control Board. See the wiring diagrams. The +DC
Bus, -DC Bus and ½ DC Bus voltages are measured
in reference to one of the other DC Bus points. For
example: +DC Bus measured to ½ DC Bus.
HEADER
J17-11
J17-12
J17-13
J17-14
J17-15
J8-7
J8-8
J8-9
J19-1
J19-2
J19-3
J19-6
J19-7
J19-8
J21-13
J21-3
J21-16
J21-6
J21-20
J21-22
J21-24
J22-13
J22-2
J22-16
J22-6
J22-20
J22-22
J22-24
J20-1
SECTION 8 - MICROPANEL
PORT USE
Printer/RCC and ISN
Control Panel <-> VSD #1 / #2
VSD <-> Control Panel
ANALOG INPUT
Remote Temperature Reset
Remote Current Limit
Spare 1
Spare 2
Spare 3
Leaving Chilled Liquid Temp Sensor
Return Chilled Liquid Temp Sensor
Ambient Air Temp Sensor
Comp 1 Motor Temperature 1
Comp 1 Motor Temperature 2
Comp 1 Motor Temperature 3
Comp 2 Motor Temperature 1
Comp 2 Motor Temperature 2
Comp 2 Motor Temperature 3
Sys 1 Suction Temperature
Sys 1 Oil Temperature
Sys 1 Discharge Temperature
Sys 1 Flash Tank Level Sensor
Sys 1 Suction Pressure
Sys 1 Oil Pressure
Sys 1 Discharge Pressure
Sys 2 Suction Temperature
Sys 2 Oil Temperature
Sys 2 Discharge Temperature
Sys 2 Flash Tank Level Sensor
Sys 2 Suction Pressure
Sys 2 Oil Pressure
Sys 2 Discharge Pressure
Comp 3 Motor Temperature 1
8
285