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Water-cooled centrifugal chiller (via E-Link gateway) · BACnet points list

York YK Centrifugal Chiller with Electro-Mechanical or Solid State Starter - OptiView E-Link (YorkTalk 3) BACnet points list

Updated 6 November 2026

Short answer

The E-Link gateway reads the YK OptiView microboard over YorkTalk 3 and serves BACnet, N2, LON and Modbus objects. The EM/SSS sheet covers remote setpoint, current limit and run/stop, water temperatures and pressures, motor phase currents and voltages (solid-state starter), input power and energy, and the operation, safety, cycling and warning codes.

This page lists 73 BACnet objects for the York YK Centrifugal Chiller with Electro-Mechanical or Solid State Starter - OptiView E-Link (YorkTalk 3) — 4 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from York’s own free documentation, linked below.

Manufacturer
York
Model
YK Centrifugal Chiller with Electro-Mechanical or Solid State Starter - OptiView E-Link (YorkTalk 3)
Equipment
Water-cooled centrifugal chiller (via E-Link gateway)
Equipment type
Chillers
BACnet objects
73 (4 writable)
Transport
—
Firmware
Not stated
Also known as
YORK YK, YK OptiView, YK SSS, YK EM starter, E-Link, eLink, YorkTalk 3
Source document
YK OptiView BAS E-Link points list, tab YK EM or SSS · rev. 2019-04-12 (Rev K_04d)
Download CSV 73 rows Download EDE B.I.G.-EU JSON Manufacturer PDF ↗ Compare with your scan Download Easy BACnet Mobile App Google Play

Reference only, provided as-is: verify against York’s current documentation and the live device before use. Not official York information. Terms of use.

BMS integration notes: York YK Centrifugal Chiller with Electro-Mechanical or Solid State Starter - OptiView E-Link (YorkTalk 3)

Integration in brief

Put the chiller in remote/ISN control at the panel, then start and stop it with the E-Link remote run/stop object and write the remote setpoint and current limit. Read the operating, safety and warning codes, run status and water temperatures.

Minimum points to map

The short list most integrators start with — enough to run the unit from a BMS. Map more as the job needs.

ObjectNameWhyAccess
BV 1REM RUN STOP CMDRemote start/stop (1 = run)Write
AV 1REM LEAVING CH LIQ TEMP SPRemote leaving chilled liquid setpointWrite
AV 2REM MOTOR CURRENT SPRemote current limit, %Write
MV 5UNIT CONTROL SOURCEMust read ISN (BAS) for BMS controlRead
MV 1UNIT OPERATION CODEUnit operating status codeRead
BV 5COMPR MOTOR STATUSChiller runningRead
AV 5LEAVING CH LIQ TEMPLeaving chilled liquid temperatureRead
AV 6ENTERING CH LIQ TEMPEntering chilled liquid temperatureRead
MV 2UNIT SAFETY FAULT CODESafety (shutdown) fault codeRead
MV 4UNIT WARNING CODEActive warning codeRead

Enable & remote start

The E-Link remote slots (AV 1-4, BV 1-4) are the BMS commands; the chiller panel must be set for remote (ISN/BAS) control for them to take effect.

Network setup

Watch out for

York YK Centrifugal Chiller with Electro-Mechanical or Solid State Starter - OptiView E-Link (YorkTalk 3) BACnet objects

Type: AI, AO, AV, BI, BO, BV, MI/MO/MV (multi-state) · Access: Read read-only, Write writable, Command writable with a priority array.

73 of 73 shown
Type
AnalogBinaryMulti-state
Access
Show
York YK Centrifugal Chiller with Electro-Mechanical or Solid State Starter - OptiView E-Link (YorkTalk 3) BACnet Points List
DescriptionStates
AVmin1REM LEAVING CH LIQ TEMP SPRemote Leaving Chilled Liquid Setpoint°FWrite
AVmin2REM MOTOR CURRENT SPRemote Motor Current Limit Setpoint%Write
AV3REM HEATING SPRemote Leaving Cond Liquid Setpoint (Heat Recovery & Heat Pump)°FWrite
BVmin1REM RUN STOP CMDRemote Run/StopWrite0=Stop, 1=Run
AVmin5LEAVING CH LIQ TEMPLeaving Chilled Liquid Temperature°FRead
AVmin6ENTERING CH LIQ TEMPEntering Chilled Liquid Temperature°FRead
AV7EVAPORATOR PRESSUREEvaporator PressurepsigRead
AV8CONDENSER PRESSURECondenser PressurepsigRead
AV9OIL DIFERENTIAL PRESSUREOil Pressure DifferentialpsidRead
AV10ENTERING COND WATER TEMPEntering Condenser Liquid Temperature°FRead
AV11LEAVING COND WATER TEMPLeaving Condenser Liquid Temperature°FRead
AV12MOTOR CURRENT PCT FLAMotor Current Percent FLA%Read
AV13MOTOR PHASE A CURRENTMotor Phase A Current (LV and MV SSS only)ARead
AV14MOTOR PHASE B CURRENTMotor Phase B Current (LV and MV SSS only)ARead
AV15MOTOR PHASE C CURRENTMotor Phase C Current (LV and MV SSS only)ARead
AV16MOTOR PHASE A VOLTAGEMotor Phase A Voltage (LV and MV SSS only)VRead
AV17MOTOR PHASE B VOLTAGEMotor Phase B Voltage (LV and MV SSS only)VRead
AV18MOTOR PHASE C VOLTAGEMotor Phase C Voltage (LV and MV SSS only)VRead
AV19LEAVING CH LIQ TEMP ACT SPLeaving Chilled Liquid Setpoint - Selected°FRead
AV20MOTOR CURRENT LIMIT ACTIVE SPMotor Current Limit Setpoint - Selected%Read
AV21EVAP SATURATION TEMPEvaporator Saturation Temp°FRead
AV22COND SATURATION TEMPCondenser Saturation Temp°FRead
AV23DISCHARGE TEMPDischarge Temperature°FRead
AV24OIL SUMP TEMPERATUREOil Sump Temperature°FRead
AV25COND REFRIGERANT LEVELCondenser Refrigerant Level%Read
AV26OPERATING HOURSOperating HourshoursRead
AV27NUMBER OF STARTSNumber of StartsRead
AV28OIL SUMP PRESSUREOil Sump PressurepsigRead
AV29OIL PUMP PRESSUREOil Pump PressurepsigRead
BVmin5COMPR MOTOR STATUSMotor RunRead0=Off, 1=On
BV6LIQUID LINE SOLENOIDLiquid Line SolenoidRead0=Off, 1=On
BV7CH LIQ PUMP STATChilled Liquid PumpRead0=Off, 1=On
BV8START STOP SWITCH STATUSPanel Stop SwitchRead0=Off, 1=On
BV9CH LIQ FLOW SWITCH STATChilled Liquid Flow SwitchRead0=Open, 1=Closed
BV10CND FLOW SWITCH STATCondenser Liquid Flow SwitchRead0=Open, 1=Closed
MVmin1UNIT OPERATION CODEUnit Operation CodeRead
MVmin2UNIT SAFETY FAULT CODEUnit Safety Fault CodeRead
MV3UNIT CYCLING FAULT CODEUnit Cycling Fault CodeRead
MVmin4UNIT WARNING CODEUnit Warning CodeRead
MVmin5UNIT CONTROL SOURCEUnit Control SourceRead0=Local, 1=ISN (BAS), 2=Analog, 3=Digital, 4=Modem, 5=Remote
MV6UNIT MODIFIED RUN CODEUnit Modified Run CodeRead
MV7UNIT START INHIBIT CODEUnit Start Inhibit CodeRead
MV8UNIT INTERNAL FAULT CODEUnit Internal Fault CodeRead
AV30PROX SENSOR ACT POSHigh Speed Thrust Bearing Proximity Position (K comps only)Read
AV31PROX SENSOR REF POSHigh Speed Thrust Bearing Proximity Reference (K comps only)Read
AV34HEAT REC HEAD PRESS VLV CMDHeat Recovery/Head Pressure Control Valve Cmd (HR & HPC only)%Read
AV35ANTI RECYCLE TIME REMAINAnti-Recycle Time RemainingminRead
AV105MTR SHAFT END VIBRMotor Bearing Shaft End Vibration (MM & Motor Vib Mon)Read
AV106MTR OP SHAFT END VIBRMotor Bearing Opposite Shaft End Vibration (MM & Motor Vib Mon)Read
AV107MTR SHAFT END TEMPMotor Bearing Shaft End Temperature (MM & Motor Temp Mon)°FRead
AV108MTR OP SHAFT END TEMPMotor Bearing Opposite Shaft End Temperature (MM & Motor Temp)°FRead
AV109MTR WINDING AVG TEMPAverage Winding Temperature (MM & Motor Temp Mon)°FRead
AV112PRE ROTATION VANES POSPre Rotation Vanes (PRV) Position (HGBP or VGD enabled only)%Read
AV114COND REFRIGERANT LEVEL SPCondenser Refrigerant Level Setpoint%Read
AV115DROP LEG REFRIG TEMPDrop Leg Refrigerant Temperature (Drop Leg Temp enabled only)°FRead
AV116LEAVING HEAT COND LIQ TEMPLeaving Heating Condenser Liquid Temperature (HR only)°FRead
AV117HEATING ACTIVE SPActive Heating Setpoint (HR/Hot Water Ctrl or Heat Pump only)°FRead
AV118HEAT REC HEAD PRESS VLV CMDHeat Recovery/Head Pressure Control Valve Cmd (HR & HPC only)%Read
AV119INPUT POWERInput Power (LV and MV SSS only)kWRead
AV120INPUT KWHInput Kilowatt Hours (LV and MV SSS only)kWhRead
AV121INPUT KWH LOInput Kilowatt Hours Low (LV and MV SSS only) (see note 11)Read
AV122INPUT KWH OFFSETInput Kilowatt Hours Offset (LV and MV SSS only) (see note 11)Read
AV123OPERATING HOURS LOOperating Hours Low (see note 12)Read
AV124OPERATING HOURS OFFSETOperating Hours Offset (see note 12)Read
AV126HP LEAVING COND LIQ SP LOCALLocal Leaving Condenser Liquid Setpoint (Heat Pump only)°FRead
AV130MTR WINDING PH A TEMPMotor Winding Phase A Temperature (Motor Temp Protection only)°FRead
AV131MTR WINDING PH B TEMPMotor Winding Phase B Temperature (Motor Temp Protection only)°FRead
AV132MTR WINDING PH C TEMPMotor Winding Phase C Temperature (Motor Temp Protection only)°FRead
AV133MTR WINDING PH A2 TEMPMotor Winding Phase A2 Temperature (Motor Temp Protection only)°FRead
AV134MTR WINDING PH B2 TEMPMotor Winding Phase B2 Temperature (Motor Temp Protection only)°FRead
AV135MTR WINDING PH C2 TEMPMotor Winding Phase C2 Temperature (Motor Temp Protection only)°FRead
AV136VSD OIL PUMP CMD FREQUENCYVSD Oil Pump Command FrequencyHzRead
AV137ENTERING HEAT COND LIQ TEMPEntering Heating Condenser Liquid Temperature (HR only)°FRead
Object ID lookup: York YK EM/SSS E-Link point IDs by name

Integration notes

Check it against the live device. A points list tells you what the controller can expose; the unit in front of you may differ by firmware or installed options. This list is provided as-is for reference only and may contain mistakes — confirming it before you write, map or commission anything is up to you (terms). Easy BACnet scans a network for BACnet IP devices from an Android phone, reads every object on the YK Centrifugal Chiller with Electro-Mechanical or Solid State Starter - OptiView E-Link (YorkTalk 3) and exports what it actually has to Excel — free. New to BACnet? Start with what a BACnet points list is and what the object types mean.

Questions about the York YK Centrifugal Chiller with Electro-Mechanical or Solid State Starter - OptiView E-Link (YorkTalk 3)

How many BACnet points does the York YK Centrifugal Chiller with Electro-Mechanical or Solid State Starter - OptiView E-Link (YorkTalk 3) have?

This list has 73 BACnet objects: 58 analog values, 7 binary values, 8 multi-state values. The exact set on a given unit depends on its firmware, installed options and configuration.

Which York YK Centrifugal Chiller with Electro-Mechanical or Solid State Starter - OptiView E-Link (YorkTalk 3) BACnet points are writable?

4 of the 73 objects accept a write. Points marked Command have a priority array: a write holds until it is released, so release it back to automatic when you are done.

Where is the official York YK Centrifugal Chiller with Electro-Mechanical or Solid State Starter - OptiView E-Link (YorkTalk 3) BACnet documentation?

The source is YK OptiView BAS E-Link points list, tab YK EM or SSS, revision 2019-04-12 (Rev K_04d), published free by York at https://docs.johnsoncontrols.com/chillers/api/khub/documents/9K1_I8TTfuZWaiBiiZxM8w/content.

What are the minimum BACnet points to integrate the York YK Centrifugal Chiller with Electro-Mechanical or Solid State Starter - OptiView E-Link (YorkTalk 3)?

Start with BV 1 REM RUN STOP CMD (Remote start/stop (1 = run)); AV 1 REM LEAVING CH LIQ TEMP SP (Remote leaving chilled liquid setpoint); AV 2 REM MOTOR CURRENT SP (Remote current limit, %); MV 5 UNIT CONTROL SOURCE (Must read ISN (BAS) for BMS control); MV 1 UNIT OPERATION CODE (Unit operating status code); BV 5 COMPR MOTOR STATUS (Chiller running); AV 5 LEAVING CH LIQ TEMP (Leaving chilled liquid temperature); AV 6 ENTERING CH LIQ TEMP (Entering chilled liquid temperature); MV 2 UNIT SAFETY FAULT CODE (Safety (shutdown) fault code); MV 4 UNIT WARNING CODE (Active warning code).

How do I enable BMS control of the York YK Centrifugal Chiller with Electro-Mechanical or Solid State Starter - OptiView E-Link (YorkTalk 3)?

The E-Link remote slots (AV 1-4, BV 1-4) are the BMS commands; the chiller panel must be set for remote (ISN/BAS) control for them to take effect.

How do I check these points on the real YK Centrifugal Chiller with Electro-Mechanical or Solid State Starter - OptiView E-Link (YorkTalk 3)?

Scan the network with a BACnet IP browser such as Easy BACnet, open the device and compare its object list with this table. Anything missing is usually an option that isn't installed or a point that is disabled in the controller's configuration.

More York BACnet points lists

Source: YK OptiView BAS E-Link points list, tab YK EM or SSS · rev. 2019-04-12 (Rev K_04d). Object names, instances and units are reproduced as published; descriptions are our own.