Johnson Controls York YIA Series, Wiring Diagram

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JOHNSON CONTROLS
FORM 155.21-W2 (1209)
LIST OF FIGURES
FIG. 1 – MICROBOARD (031-02430-005) ....................................................................................4
FIG. 2 – I/O BOARD (031-01743-002) ..........................................................................................4
FIG. 3 – REMOTE MODE READY TO START CONTACTS .........................................................5
FIG. 4 – CYCLING SHUTDOWN CONTACTS ..............................................................................5
FIG. 5 – SAFETY SHUTDOWN CONTACTS ................................................................................5
FIG. 6 – RUN CONTACTS ...........................................................................................................5
FIG. 7 – ANTICIPATORY/ALARM CONTACTS ............................................................................6
FIG. 8 – REMOTE START AND STOP CONTACTS FROM ENERGY
MANAGEMENT SYSTEM ................................................................................................6
FIG. 9 – REMOTE/LOCAL CYCLING DEVICES .........................................................................6
FIG. 10 – MULTI-UNIT SEQUENCE .............................................................................................7
FIG. 11 – CONDENSER FLOW SENSORS..................................................................................7
FIG. 11B – PADDLE TYPE FLOW SENSOR ................................................................................7
FIG. 12 – TWO UNIT SEQUENCE CONTROL .............................................................................8
FIG. 13 – MULTIPLE UNITS (TWO) - SERIES OPERATION .......................................................8
FIG. 14 – MULTIPLE UNITS (TWO) – PARALLEL OPERATION –
INDIVIDUAL UNIT PUMPS .........................................................................................9
FIG. 15 – MULTIPLE UNITS (TWO) – PARALLEL OPERATION –
SINGLE CHILLED WATER PUMP ................................................................................9
FIG. 16 – REMOTE STEAM / HOT WATER LIMIT SETPOINT WITH 0-10VDC SIGNAL ..........10
FIG. 17 – REMOTE STEAM / HOT WATER LIMIT SETPOINT WITH PWM SIGNAL ................10
FIG. 18 – REMOTE LEAVING CHILLED LIQUID TEMP. SETPOINT WITH 0-10VDC ...............11
FIG. 19 – REMOTE LEAVING CHILLED LIQUID TEMPERATURE SETPOINT
WITH PWM SIGNAL ...................................................................................................12
FIG. 20 – REMOTE LEAVING CHILLED LIQUID TEMP. SETPOINT WITH 0-10VDC ...............12
FIG. 21 – MICROBOARD DIP SWITCH FOR AUTO/MANUAL RESTART
AFTER POWER FAILURE ..........................................................................................14
FIG. 20 – EXTERNAL SIGNAL FOR REFRIGERATION UNIT FAILURE ...................................15
FIG. 21 – RUN CONTACTS / REMOTE RUN LIGHT AND SHUTDOWN
INDICATOR PLUS EMS ..............................................................................................13
FIG. 22 – AUXILIARY SAFETY SHUTDOWN INPUT .................................................................13
FIG. 23 – EVAPORATOR FLOW SENSORS ..............................................................................14
FIG. 24 – PADDLE TYPE FLOW SENSOR ................................................................................14
FIG. 25 – GENERATOR BACKUP TRANSFER ..........................................................................14