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

York YMC2 Magnetic-Bearing Centrifugal Chiller - OptiView E-Link (YorkTalk 3) BACnet points list

Updated 6 November 2026

Short answer

The E-Link gateway reads the YMC2 OptiView microboard over YorkTalk 3 and serves BACnet, N2, LON and Modbus objects: remote setpoint, current limit and run/stop, water temperatures and pressures, VSD and bearing values and the status codes.

This page lists 73 BACnet objects for the York YMC2 Magnetic-Bearing Centrifugal Chiller - OptiView E-Link (YorkTalk 3) — 3 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
YMC2 Magnetic-Bearing Centrifugal Chiller - OptiView E-Link (YorkTalk 3)
Equipment
Water-cooled centrifugal chiller (via E-Link gateway)
Equipment type
Chillers
BACnet objects
73 (3 writable)
Transport
—
Firmware
Not stated
Also known as
YORK YMC2, YMC², YMC2 OptiView, E-Link, eLink, YorkTalk 3, 031-02430
Source document
YMC2 OptiView BAS E-Link points list · rev. 2014-07-11 (Rev K_05b)
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 YMC2 Magnetic-Bearing 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 INPUT CURRENT LIM 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 YMC2 Magnetic-Bearing 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.

73 of 73 shown
Type
AnalogBinaryMulti-state
Access
Show
York YMC2 Magnetic-Bearing Centrifugal Chiller - OptiView E-Link (YorkTalk 3) BACnet Points List
DescriptionStates
AVmin1REM LEAVING CH LIQ TEMP SPRemote Leaving Chilled Liquid Setpoint°FWrite
AVmin2REM INPUT CURRENT LIM SPRemote Input Current Limit Setpoint%Write
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
AV7LEAVING COND WATER TEMPLeaving Condenser Liquid Temperature°FRead
AV8ENTERING COND WATER TEMPEntering Condenser Liquid Temperature°FRead
AV9EVAPORATOR PRESSUREEvaporator PressurepsigRead
AV10CONDENSER PRESSURECondenser PressurepsigRead
AV11DISCHARGE TEMPDischarge Temperature°FRead
AV12EVAP REFRIGERANT TEMPEvaporator Refrigerant Temperature°FRead
AV13VSD PHASE A OUTPUT CURRENTVSD Phase A Output Current (RMS)ARead
AV14VSD PHASE B OUTPUT CURRENTVSD Phase B Output Current (RMS)ARead
AV15VSD PHASE C OUTPUT CURRENTVSD Phase C Output Current (RMS)ARead
AV17VSD RMS INPUT CURRENT L1VSD L1 Input Current (RMS)ARead
AV18VSD RMS INPUT CURRENT L2VSD L2 Input Current (RMS)ARead
AV19VSD RMS INPUT CURRENT L3VSD L3 Input Current (RMS)ARead
AV20LEAVING CH LIQ TEMP ACT SPLeaving Chilled Liquid Setpoint - Selected°FRead
AV21INPUT CURRENT LMT ACTIVEActive Input Current Limit%Read
AV22EVAP SATURATION TEMPEvaporator Saturation Temperature°FRead
AV23COND SATURATION TEMPCondenser Saturation Temperature°FRead
AV24INPUT CURRENT PCT FLAInput % Full Load Amps (use for control see note 7 below)%Read
AV25COND REFRIGERANT LEVELCondenser Refrigerant Level%Read
AV26OPERATING HOURSOperating HourshoursRead
AV27NUMBER OF STARTSNumber Of StartsRead
AV28HOT GAS BYPASS VLV CMDHot Gas Bypass Command (Hot Gas Bypass Option only)%Read
AV29MOTOR CURRENT PCT FLAMotor % Full Load Amps (Do NOT use for control see note 7 below)%Read
BVmin5COMPR MOTOR STATUSMotor RunRead0=Off, 1=On
BV6CH LIQ PUMP STATChilled Liquid PumpRead0=Off, 1=On
BV7VSD COOLING SYS STATVSD Cooling SystemRead0=Off, 1=On
BV8RUN PERMISSIVERun PermissiveRead0=Off, 1=On
BV9CH LIQ FLOW SWITCH STATChilled Liquid Flow SwitchRead0=Open, 1=Closed
BV10CND FLOW SWITCH STATCondenser Liquid Flow SwitchRead0=Open, 1=Closed
BV11COND REF LEVEL CNTRL MODECondenser Level Control Valve ModeRead0=Auto, 1=Manual
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
MV6UNIT MOD RUN CODEUnit Modified Run CodeRead
MV7UNIT START INHIBIT CODEUnit Start Inhibit CodeRead
MV8UNIT INTERNAL FAULT CODEUnit Internal Fault CodeRead
AV30VGD CONTROL STATEVGD Control State (Mod A Chillers only)Read
AV31VGD STALL COUNTVGD Stall Count (Mod A Chillers only)Read
AV32ACTIVE ANTI SURGE MIN FREQActive Anti-Surge Minimum FrequencyHzRead
AV34VSD OUTPUT VOLTAGEVSD Output VoltageVRead
AV35VSD INPUT POWERVSD Input PowerkWRead
AV36VSD INPUT KWHVSD Input Kilowatt HourskWhRead
AV37VSD DC BUS VOLTAGEVSD DC Bus VoltageVRead
AV38VSD INPUT VOLTAGE L1VSD L1 Input Voltage (RMS)VRead
AV39SURGE COUNTSurge CountRead
AV40VSD OUTPUT FREQUENCYVSD Output FrequencyHzRead
AV41VSD INPUT VOLTAGE L2VSD L2 Input Voltage (RMS)VRead
AV42VSD INPUT VOLTAGE L3VSD L3 Input Voltage (RMS)VRead
AV43COND LVL CTRL VLV CMDCondenser Level Control Valve Command%Read
BV26MBC LEVITATION MODEMBC Levitation ModeRead0=Off, 1=On
BV27MBC ROTATION MODEMBC Rotation ModeRead0=Off, 1=On
AV105MOTOR HOUSING TEMPMotor Housing Temp°FRead
AV107MOTOR COOLING VALVE CMDMotor Cooling Valve Command (Mod A FAB comp & Mod B chillers)°FRead
AV108VSD INTERNAL AMBIENT TEMP 2VSD Internal Ambient Temperature 2°FRead
AV109MTR WINDING AVG TEMPAverage Motor Winding Temperature°FRead
AV110VSD INTERNAL AMBIENT TEMP 1VSD Internal Ambient Temperature 1°FRead
AV111VGD POSITIONVGD Position%Read
AV112PRE ROTATION VANE POSPre Rotation Vanes (PRV) Position (Mod A chillers FAA comp only)%Read
AV113COND REFRIGERANT LEVEL SPCondenser Active Level Setpoint%Read
AV114DROP LEG REFRIG TEMPDrop Leg Refrigerant Temperature°FRead
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
AV125MBC MOTOR SPEEDMBC Motor SpeedHzRead
AV126MBC LANDING COUNTERMBC Landing Counter (Mod A chillers only)Read
AV127ANTI SURGE MIN PRV POSActive Minimum PRV Position (Mod A chillers FAA comp only)%Read
Object ID lookup: York YMC2 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 YMC2 Magnetic-Bearing 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 YMC2 Magnetic-Bearing Centrifugal Chiller - OptiView E-Link (YorkTalk 3)

How many BACnet points does the York YMC2 Magnetic-Bearing Centrifugal Chiller - OptiView E-Link (YorkTalk 3) have?

This list has 73 BACnet objects: 55 analog values, 10 binary values, 8 multi-state values. The exact set on a given unit depends on its firmware, installed options and configuration.

Which York YMC2 Magnetic-Bearing Centrifugal Chiller - OptiView E-Link (YorkTalk 3) BACnet points are writable?

3 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 YMC2 Magnetic-Bearing Centrifugal Chiller - OptiView E-Link (YorkTalk 3) BACnet documentation?

The source is YMC2 OptiView BAS E-Link points list, revision 2014-07-11 (Rev K_05b), published free by York at https://docs.johnsoncontrols.com/chillers/api/khub/documents/gk4oFkQpP27Gpe5ruu31kA/content.

What are the minimum BACnet points to integrate the York YMC2 Magnetic-Bearing 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 INPUT CURRENT LIM 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 YMC2 Magnetic-Bearing 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 YMC2 Magnetic-Bearing 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: YMC2 OptiView BAS E-Link points list · rev. 2014-07-11 (Rev K_05b). Object names, instances and units are reproduced as published; descriptions are our own.