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

York YD Dual-Compressor Centrifugal Chiller - OptiView E-Link (YorkTalk 3) BACnet points list

Updated 6 November 2026

Short answer

The E-Link gateway reads the YD OptiView microboard over YorkTalk 3 and serves BACnet, N2, LON and Modbus objects: remote setpoint, current limit, compressor operation mode and lockout, run/stop, water temperatures and pressures, per-compressor oil and motor values and the status codes.

This page lists 109 BACnet objects for the York YD Dual-Compressor Centrifugal Chiller - OptiView E-Link (YorkTalk 3) — 5 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
YD Dual-Compressor Centrifugal Chiller - OptiView E-Link (YorkTalk 3)
Equipment
Water-cooled centrifugal chiller (via E-Link gateway)
Equipment type
Chillers
BACnet objects
109 (5 writable)
Transport
—
Firmware
Not stated
Also known as
YORK YD, YD OptiView, E-Link, eLink, YorkTalk 3
Source document
YD OptiView BAS E-Link points list · rev. 2018-02-27 (Rev K_06f)
Download CSV 109 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 YD Dual-Compressor Centrifugal Chiller - 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 8UNIT CONTROL SOURCEMust read ISN (BAS) for BMS controlRead
MV 1UNIT OPERATION CODEUnit operating status codeRead
BV 5COMPR MOTOR STATUS 1Chiller 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 YD Dual-Compressor Centrifugal Chiller - 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.

109 of 109 shown
Type
AnalogBinaryMulti-state
Access
Show
York YD Dual-Compressor Centrifugal Chiller - OptiView E-Link (YorkTalk 3) BACnet Points List
DescriptionStates
AVmin1REM LEAVING CH LIQ TEMP SPRemote Leaving Chilled Liquid Setpoint°FWrite
AVmin2REM MOTOR CURRENT SPRemote Unit Current Limit Setpoint%Write
AV3REM COMP OPERATION MODERemote Comp Operation ModeWrite0=Staged, 1=Single, 2=Dual
AV4REM COMP LOCKOUTRemote Comp LockoutWrite0=None, 1=Comp #1, 2=Comp #2
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 DIFERENTL PRESSURE 1Oil Pressure Differential #1psidRead
AV10OIL DIFERENTL PRESSURE 2Oil Pressure Differential #2psidRead
AV11ENTERING COND WATER TEMPEntering Condenser Liquid Temperature°FRead
AV12LEAVING COND WATER TEMPLeaving Condenser Liquid Temperature°FRead
AV13MOTOR CURRENT FLA 1Motor Current Percent FLA #1%Read
AV14MOTOR CURRENT FLA 2Motor Current Percent FLA #2%Read
AV15EVAP REFRIG TEMPEvaporator Refrigerant Temperature°FRead
AV16DROP LEG REFRIG TEMPDrop Leg Refrigerant Temperature°FRead
AV17LEAVING CH LIQ TEMP ACT SPLeaving Chilled Liquid Setpoint-Selected°FRead
AV18MOTOR CURRENT ACTUAL SPUnit Current Limit Setpoint-Selected%Read
AV19EVAP SATURATION TEMPEvaporator Saturation Temp°FRead
AV20COND SATURATION TEMPCondenser Saturation Temp°FRead
AV21DISCHARGE TEMP 1Discharge Temperature #1°FRead
AV22DISCHARGE TEMP 2Discharge Temperature #2°FRead
AV23OIL SUMP TEMPERATUREOil Sump Temperature°FRead
AV24COND REFRIGERANT LEVELCondenser Refrigerant Level%Read
AV25ACCUM OPERATING HOURSUnit Operating HoursRead
AV26ACCUM SYSTEM STARTSUnit System StartsRead
AV27OIL SUMP PRESSUREOil Sump Pressure PSIGpsigRead
AV28OIL PUMP PRESSURE 1Oil Pump Pressure #1 PSIGpsigRead
AV29OIL PUMP PRESSURE 2Oil Pump Pressure #2 PSIGpsigRead
BVmin5COMPR MOTOR STATUS 1Motor Run #1Read0=Off, 1=On
BV6COMPR MOTOR STATUS 2Motor Run #2Read0=Off, 1=On
BV8CH LIQ PUMP STATChilled Liquid PumpRead0=Off, 1=On
BV9START STOP SWITCH STATUSPanel Stop SwitchRead0=Off, 1=On
BV10CH LIQ FLOW SWITCH STATChilled Liquid Flow SwitchRead0=Open, 1=Closed
BV11CND FLOW SWITCH STATCondenser Liquid Flow SwitchRead0=Open, 1=Closed
BV12DISCH HI PRESS SW 1Discharge High Pressure Switch #1Read
BV13DISCH HI PRESS SW 2Discharge High Pressure Switch #2Read
BV14VANE MOTOR SW 1Vane Motor Switch #1Read
BV15VANE MOTOR SW 2Vane Motor Switch #2Read
BV16REFRIGERANT LEVEL LOWERRefrigerant Level LowerRead0 = Off, 1 = On
BV17REFRIGERANT LEVEL RAISERefrigerant Level RaiseRead0 = Off, 1 = On
BV18OIL RETURN SOLONOIDOil Return SolenoidRead
BV19PRV OPENING 1Pre-Rotation Vane Opening #1Read
BV20PRV OPENING 2Pre Rotation Vane Opening #2Read
BV21PRV CLOSING 1Pre-Rotation Vane Closing #1Read
BV22PRV CLOSING 2Pre-Rotation Vane Closing #2Read
MVmin1UNIT OPERATION CODEUnit Operation CodeRead
MVmin2UNIT SAFETY FAULT CODEUnit Safety Fault CodeRead
MV3UNIT CYCLING FAULT CODEUnit Cycling Fault CodeRead
MVmin4UNIT WARNING CODEUnit Warning CodeRead
MV5UNIT MODIFIED RUN CODEUnit Modified Run CodeRead
MV6UNIT START INHIBIT CODEUnit Start Inhibit CodeRead
MV7UNIT INTERNAL FAULT CODEUnit Internal Fault CodeRead
MVmin8UNIT CONTROL SOURCEUnit Control SourceRead0=Local, 1=ISN (BAS), 2=Analog, 3=Digital, 4=Modem
AV30PROX SENSOR ACT POS 1High Speed Thrust Bearing Proximity Position #1 (mils )Read
AV31PROX SENSOR ACT POS 2High Speed Thrust Bearing Proximity Position #2 (mils )Read
AV32REFRIGERANT LEVEL SPRefrigerant Level Setpoint%Read
AV33ANTI RECYC TIME REMAIN 1Motor Anti-Recycle Time Remaining #1Read
AV34ANTI RECYC TIME REMAIN 2Motor Anti-Recycle Time Remaining #2Read
AV35PRV POSITION 1Pre Rotation Vanes Position #1%Read
AV36PRV POSITION 2Pre Rotation Vanes Position #2%Read
AV37VGD POSITION 1VGD Position #1%Read
AV38VGD POSITION 2VGD Position #2%Read
AV39OIL LEVEL SUMPOil Level (Sump)%Read
AV40COMP OPERATION MODECompressor Operation ModeRead0=Staged, 1=Single, 2=Dual
AV41COMP LOCKOUT MODECompressor Lockout ModeRead0=None 1=Comp #1, 2=Comp #2
BV25DISCH VLV OPENING 1Discharge Valve Opening #1Read
BV26DISCH VLV OPENING 2Discharge Valve Opening #2Read
BV27DISCH VLV CLOSING 1Discharge Valve Closing #1Read
BV28DISCH VLV CLOSING 2Discharge Valve Closing #2Read
AV105MC 1 INPUT POWERInput Power #1 (VSD only)kWRead
AV106MC 2 INPUT POWERInput Power #2 (VSD only)kWRead
AV107MC 1 INPUT KWHInput Kilowatt Hours #1 (VSD only)kWhRead
AV108MC 2 INPUT KWHInput Kilowatt Hours #2 (VSD only)kWhRead
AV109VSD 1 OUTPUT VOLTAGEVSD #1 Output Voltage (VSD only)Read
AV110VSD 2 OUTPUT VOLTAGEVSD #2 Output Voltage (VSD only)Read
AV111VSD 1 OUTPUT FREQUENCYVSD #1 Output Frequency (VSD only)HzRead
AV112VSD 2 OUTPUT FREQUENCYVSD #2 Output Frequency (VSD only)HzRead
AV113MOTOR 1 PHASE A CURRENTMotor #1 Phase A Current (VSD only)ARead
AV114MOTOR 2 PHASE A CURRENTMotor #2 Phase A Current (VSD only)ARead
AV115MOTOR 1 PHASE B CURRENTMotor #1 Phase B Current (VSD only)ARead
AV116MOTOR 2 PHASE B CURRENTMotor #2 Phase B Current (VSD only)ARead
AV117MOTOR 1 PHASE C CURRENTMotor #1 Phase C Current (VSD only)ARead
AV118MOTOR 2 PHASE C CURRENTMotor #2 Phase C Current (VSD only)ARead
AV119VSD 1 DC BUS VOLTAGEVSD #1 DC Bus Voltage (VSD only)VRead
AV120VSD 2 DC BUS VOLTAGEVSD #2 DC Bus Voltage (VSD only)VRead
AV121VSD 1 DC BUS CURRENTVSD #1 DC Bus Current (LVVSD only)ARead
AV122VSD 2 DC BUS CURRENTVSD #2 DC Bus Current (LVVSD only)ARead
AV123VSD 1 INTERNAL AMBIENT TEMPVSD #1 Internal Ambient Temperature (LVVSD only)°FRead
AV124VSD 2 INTERNAL AMBIENT TEMPVSD #2 Internal Ambient Temperature (LVVSD only)°FRead
AV125VSD 1 CONVERTER HSINK TEMPVSD #1 Converter Heatsink Temp (LVVSD only)°FRead
AV126VSD 2 CONVERTER HSINK TEMPVSD #2 Converter Heatsink Temp (LVVSD only)°FRead
AV127FILTER #1 SUPPLY KVAHarmonic Filter #1 Total Supply KVA (LVVSD/HF only)kVARead
AV128FILTER #2 SUPPLY KVAHarmonic Filter #2 Total Supply KVA (LVVSD/HF only)kVARead
BV105VSD #1 COOLING SYS RUNVSD #1 Cooling System Run (VSD only)Read0=Not Running, 1=Running
BV106VSD #2 COOLING SYS RUNVSD #2 Cooling System Run (VSD only)Read0=Not Running, 1=Running
BV107VSD #1 HARMONIC FILTER INSTHarmonic Filter #1 Installed (LVVSD only)Read0=False, 1=True
BV108VSD #2 HARMONIC FILTER INSTHarmonic Filter #2 Installed (LVVSD only)Read0=False, 1=True
AV130FILTER #1 MAX VOLTAGE THDHarmonic Filter #1 Max Voltage Total Harmonic Distortion (LVVSD/HF only)%Read
AV131FILTER #2 MAX VOLTAGE THDHarmonic Filter #2 Max Voltage Total Harmonic Distortion (LVVSD/HF only)%Read
AV132FILTER #1 MAX CURRENT TDDHarmonic Filter #1 Max Current Total Demand Distortion (LVVSD/HF only)%Read
AV133FILTER #2 MAX CURRENT TDDHarmonic Filter #2 Max Current Total Demand Distortion (LVVSD/HF only)%Read
AV138MC 1 INPUT KWH LOInput Kilowatt Hours Low #1 (see note 21) (VSD only)Read
AV139MC 1 INPUT KWH OFFSETInput Kilowatt Hours Offset #1 (see note 21) (VSD only)Read
AV140MC 2 INPUT KWH LOInput Kilowatt Hours Low #2 (see note 21) (VSD only)Read
AV141MC 2 INPUT KWH OFFSETInput Kilowatt Hours Offset #2 (see note 21) (VSD only)Read
AV142OPERATING HOURS LOOperating Hours Low (see note 22)Read
AV143OPERATING HOURS OFFSETOperating Hours Offset (see note 22)Read
Object ID lookup: York YD 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 YD Dual-Compressor Centrifugal Chiller - 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 YD Dual-Compressor Centrifugal Chiller - OptiView E-Link (YorkTalk 3)

How many BACnet points does the York YD Dual-Compressor Centrifugal Chiller - OptiView E-Link (YorkTalk 3) have?

This list has 109 BACnet objects: 75 analog values, 26 binary values, 8 multi-state values. The exact set on a given unit depends on its firmware, installed options and configuration.

Which York YD Dual-Compressor Centrifugal Chiller - OptiView E-Link (YorkTalk 3) BACnet points are writable?

5 of the 109 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 YD Dual-Compressor Centrifugal Chiller - OptiView E-Link (YorkTalk 3) BACnet documentation?

The source is YD OptiView BAS E-Link points list, revision 2018-02-27 (Rev K_06f), published free by York at https://docs.johnsoncontrols.com/chillers/api/khub/documents/l7pWhFILYevobk9HZKrdBw/content.

What are the minimum BACnet points to integrate the York YD Dual-Compressor Centrifugal Chiller - 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 8 UNIT CONTROL SOURCE (Must read ISN (BAS) for BMS control); MV 1 UNIT OPERATION CODE (Unit operating status code); BV 5 COMPR MOTOR STATUS 1 (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 YD Dual-Compressor Centrifugal Chiller - 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 YD Dual-Compressor Centrifugal Chiller - 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: YD OptiView BAS E-Link points list · rev. 2018-02-27 (Rev K_06f). Object names, instances and units are reproduced as published; descriptions are our own.