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Absorption chiller, steam or hot water (via SC-EQ card) · BACnet points list
York YIA Absorption Chiller (SC-EQ) BACnet points list
Updated 4 November 2026
The YIA's SC-EQ card puts the absorption chiller on a BACnet MS/TP trunk (it also speaks Modbus RTU and N2). The BAS can run/stop the chiller and write the leaving chilled water setpoint and load limit. Read-only points cover chilled and condenser water temperatures, generator and purge pressures, strong solution temperature and concentration, steam or hot water supply values, pump status and multistate operation, shutdown, warning and inhibit codes.
This page lists 43 BACnet objects for the York YIA Absorption Chiller (SC-EQ) — 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
- YIA Absorption Chiller (SC-EQ)
- Equipment
- Absorption chiller, steam or hot water (via SC-EQ card)
- Equipment type
- Chillers
- BACnet objects
- 43 (3 writable)
- Transport
- BACnet MS/TP
- Firmware
- SC-EQ software 3.4.0.12
- Default device instance
- 5000 + MAC address
- Also known as
- YORK YIA, YIA absorption, SC-EQ, SE-SCC1001-1
- Source document
- YIA SC-EQ BAS Points List · rev. Rev 1.1, 2020-12-18
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 YIA Absorption Chiller (SC-EQ)
Wire the BAS to the SC-EQ RS-485 port and set the MAC address; the card detects BACnet MS/TP. Run/stop the chiller with BV 1 and write the leaving chilled water setpoint (AV 1) and load limit (AV 2). Read MV 1 for the operating state, the chilled water temperatures and MV 2/MV 3 for safety and cycling shutdowns. MV 5 shows whether the chiller is under ISN (BAS) control.
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.
| Object | Name | Why | Access |
|---|---|---|---|
| BV 1 | REM RUN STOP CMD | Remote run/stop (1 = run) | Command |
| AV 1 | REM LEAVING CHW TEMP SP | Remote leaving chilled water setpoint | Command |
| AV 2 | REM LOAD LIMIT SP | Remote load limit, % | Command |
| MV 1 | OPERATIONAL CODE | Operating state (ready, starting, running) | Read |
| MV 5 | UNIT CONTROL SOURCE | Control source; ISN (BAS) for BMS control | Read |
| AV 5 | LEAVING CHW TEMP | Leaving chilled water temperature | Read |
| AV 6 | ENTERING CHW TEMP | Return chilled water temperature | Read |
| MV 2 | SAFETY SHUTDOWN CODE | Safety shutdown code (1 = none) | Read |
| MV 3 | CYCLING SHUTDOWN CODE | Cycling shutdown code (1 = none) | Read |
Enable & remote start
BV 1 REM RUN STOP CMD (0 = Stop, 1 = Run) is the BAS run/stop; AV 1 and AV 2 are the remote setpoints. MV 5 shows the control source (Local, ISN, Analog, Digital); it should read ISN for BAS control. The points list has no write-enable point.
Network setup
- The BAS connects to the SC-EQ J12 port (RS-485: +, -, COM/REF, SHLD). The card detects BACnet MS/TP, Modbus RTU or N2 and the baud rate by itself; allow up to 120 seconds after power-up.
- The MAC address (1-127) is set on DIP switch SW1 (switch 8 unused). Cycle the card's power after changing it.
- The device instance defaults to 5000 + the MAC address (MAC 6 gives 5006). To use another number, set Device Instance Mode to Manual and enter the instance with the SC-AP / MAP tool, or write BV 65000 (mode) and AV 65000 (instance ID).
Watch out for
- The remote (commandable) setpoints read as unreliable until the BAS writes them the first time.
- The SC-EQ only exposes the points that apply to the chiller it detects; if it replaces an E-Link, re-discover the device so old non-applicable points don't sit offline.
- The safety code table (SC.2, MV 2) has several crystallization-check and dilution-cycle faults, and the control status code (SC.12, MV 6) shows when a dilution cycle is running.
York YIA Absorption Chiller (SC-EQ) 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.
Note: the source document has no read/write column, so access here is inferred from the object type (inputs read-only, values writable). Confirm on the live controller before writing.
| Description | States | |||||
|---|---|---|---|---|---|---|
| AVmin | 1 | REM LEAVING CHW TEMP SP | Remote Leaving Chilled Liquid Setpoint | °F | Command | |
| AVmin | 2 | REM LOAD LIMIT SP | Remote Load Limit Setpoint | % | Command | |
| BVmin | 1 | REM RUN STOP CMD | Remote Run/Stop | Command | 0=Stop, 1=Run | |
| AVmin | 5 | LEAVING CHW TEMP | Leaving Chilled Water Temperature | °F | Read | |
| AVmin | 6 | ENTERING CHW TEMP | Return Chilled Water Temperature | °F | Read | |
| AV | 7 | GENERATOR PRESSURE | Generator Shell Pressure | mmHg | Read | |
| AV | 10 | LEAVING COND WATER TEMP | Leaving Condenser Water Temperature | °F | Read | |
| AV | 11 | ENTERING COND WATER TEMP | Return Condenser Water Temperature | °F | Read | |
| AV | 12 | AUTO DECRYSTLZATION TEMP | Automatic Decrystallization Temperature | °F | Read | |
| AV | 13 | REFRIG TEMP LEAVING COND | Refrigerant Temperature Leaving the Condenser | °F | Read | |
| AV | 14 | STEAM HOT WATER SUP TEMP | Steam / Hot Water Supply Temperature | °F | Read | |
| AV | 15 | STEAM SUPPLY PRESSURE | Steam Supply Pressure (steam units only) | PSIA | Read | |
| AV | 16 | STEAM HT WTR ACT VLV POS | Steam / Hot Water Actuator Valve Position | % | Read | |
| AV | 18 | PURGE PMP SERV INTRVL SP | Purge Pump Service Interval Setpoint - Hours | Hr | Read | |
| AV | 19 | LEAVING CHW TEMP ACT SP | Active Leaving Chilled Water Setpoint | °F | Read | |
| AV | 21 | REFRIGERANT TEMP | Refrigerant Temperature | °F | Read | |
| AV | 22 | STRONG SOLUTION TEMP | Strong Solution Temperature | °F | Read | |
| AV | 23 | STRONG SOLUTION CONC | Strong Solution Concentation % | % | Read | |
| AV | 26 | ACCUM OPERATING HOURS | Total Operating Hours | Hr | Read | |
| BV | 5 | REFRIG MOTOR STATUS | Refrigerant Pump Motor Status | Read | 0=Off, 1=On | |
| BV | 6 | COND MOTOR STATUS | Condenser Water Pump Status | Read | 0=Off, 1=On | |
| BV | 7 | CHW PUMP STAT | Chilled Water Pump Status | Read | 0=Off, 1=On | |
| BV | 10 | SOLU ABSORB PMP MTR STAT | Solution / Absorber Pump Motor Status | Read | 0=Off, 1=On | |
| BV | 12 | PURGE PMP MTR STAT | Purge Pump Motor Status | Read | 0=Off, 1=On | |
| BV | 14 | REFRIG STAB SOL VLV STAT | Refrigerant Stabilizer Solenoid Valve Status | Read | 0=Off, 1=On | |
| BV | 17 | REFRIG LVL FLO SW STAT | Refrigerant Level Float Switch Status | Read | 0=Open, 1=Closed | |
| MVmin | 1 | OPERATIONAL CODE | Operational Code | Read | 1=No Unit Operation Conditions Present, 2=System Ready to Start, 3=System Starting, 4=System Running, 5=Safety Shutdown -Reset to Restart, 6=Cycling Shutdown -Autostart-, 7=System Start Inhibited, 8=Unit Starting, 9=Unit Running - No Abnormal Condition, 10=Unit Running - Warning Active, 13=Unit Running- Modified Run, 14=Unit Running - Internal Shutdown | |
| MVmin | 2 | SAFETY SHUTDOWN CODE | Safety Shutdown Code | Read | 1=No Safety Faults Present, 2=Solution Pump Overload -Chk Crystallization-, 3=Solution Pump Overloads Opened, 4=Refrigerant Pump Overloads Opened, 5=Generator hi-Press Digital Switch HP1 Opened, 6=Generator hi-press Analog Switch PT1 >672 mmHg, 7=Low Refrigerant Temp Digital LRT Opened, 8=Low Refrigerant Temp Analog RT8 < 33F (0.56C), 9=Gen Hi-Temp Dig Switch HT1 Opened -Man Reset-, 10=Gen Hi-Temp Analog Switch RT3 > 330F(166C), 11=Auxiliary TB1-31 Device Opened, 12=Manual Restart After Power is Restored, 13=Chilled Liquid Flow Switch Opened, 14=High Steam Supply Temp RT7 > Maximum Allowed, 15=High Hot Water Supply Temp RT7 > Maximum Allowed, 16=Low Motor Coolant Level -MCFL Switch Opened-, 17=Refrigerant Pump Level Switch 3F Failure, 18=Solution Pump Overload Twice -Chk for Cryst-, 19=Ref Pump Overload Twice -Chk for Cryst-, 20=Soln Low Temp & Evap Flow SW Open -Chk Cryst-, 21=Soln Low Temp & Low Ref Temp Shdwn -Chk Cryst-, 22=High Steam Supply Press PT2 > 35PSIA (241.3KPA), 23=RT3 Low Temp While MCFL Shutdown -Chk Cryst-, 24=RT3 Low Temp After Power Failure -Chk Cryst-, 25=Condenser Liquid Flow Switch Opened, 26=High Concentration in Strong Solution, 27=MCFL Switch Opened, LDC Interrumped -Chk Cryst-, 28=Cond Flow Switch Closed During Limited Dilution, 29=Dilution Cycle Interrupted -Switch 3F Opened-, 30=Dilution Cycle Interrupted -Chilled Water Off-, 31=Dilution Cycle Interrupted -Cond Water Off-, 32=Solution Pump Overload Contacts are in Conflict, 33=Refrigerant pump Overload Contacts are in Conflict, 34=Start Prohibited at this Moment | |
| MVmin | 3 | CYCLING SHUTDOWN CODE | Cycling Shutdown Code | Read | 1=No Cycling Faults Present, 2=Power Failure Ocurred, 3=Low Leaving Chilled Liquid Temperature, 4=Unit Shutdown by Remote Device, 5=Unit Shutdown by Multi-Unit Remote, 6=Daily Schedule Programmed Stop, 7=Emergency Power Source Activated | |
| MV | 4 | WARNING MESSAGE CODE | Warning Message Code | Read | 1=No Warnings Present, 2=Low ref temp in evap RT8<34.0F(1.1C) –sol pump is off-, 3=Low refrigerant temperature in evap RT8<35.5F(1.9C), 4=Generator High Pressure >517 mmHg -Load set to 30%-, 5=Purge Pump Overloads Opened, 6=Faulty Strong Solution Temp Sensor RT3, 7=High Steam Supply Press PT2>32PSIA (22O.6KPA), 8=High Hot Water Supply Temp RT7 > Warning Temp, 9=High Steam Supply Temp RT7 > Warning Temp, 10=Purge Pump Service Recommended, 11=Autopurge Failure -Purge Tank Press Doesn't Decrease-, 12=Excess Purging in the Last 7 Days -See Setpoint-, 13=Purge Tank Pressure is >100mmHg, 14=Purge Pump Overload Contacts are in Conflict, 15=Purge Transducer PT4 out of Range, 16=8SOL Failure; PT3>100mmHg -Manually Close VP2 & VP4-, 17=Purge Pump Failure -Manually Close VP2 & VP4-, 18=Autopurge Failure; PT3>15mmHg -Check Purge Pump-, 19=Refrigerant Level Switch Conflict -CHK 1F&3F-, 20=Refrigerant from Condenser RT9 or Shell Press PT1 Conflict | |
| MVmin | 5 | UNIT CONTROL SOURCE | Unit Control Source | Read | 0=Local, 1=ISN, 2=Analog, 3=Digital | |
| MV | 6 | UNIT CONTROL STATUS CODE | Unit Control Status Code | Read | 1=No Modified Run Conditions Present, 2=Cooling Start Sequence Initiated, 3=Unit Load has Reached the Remote Load Limit Setpoint, 4=Leaving Chilled Liquid Temperature Control in Effect, 5=Unit Load is Controlled by Pulldown Demand Limit, 6=Unit Load is Controlled by Rampdown Limit, 7=Unit Load has Reached the Maximum Load Limit Setpoint, 8=Manual Operation Control in Effect, 9=Dilution Cycle is in Progress, 10=Limited Dilution Cycle is in Progress, 11=Unit Load is set to 30%, 12=Unit Load is set to 60%, 13=Manual Dilution Cycle is in Progress, 14=Unit Load is Inhibited by Low Refrigerant Temp. Condition, 15=ADC in Progress -Load set to 50%-, 16=Primary Limited ADC in Progress - Load set to 50%-, 17=Secondary Limited ADC in Progress, 18=Unit in Standby Until Power Supply Recovers, 19=Unit is Unable to Perform a Limited Dilution Cycle, 20=Primary Limited ADC in Progress - Load set to 50%- | |
| MV | 7 | UNIT INHIBIT FAULT CODE | Unit Inhibit Fault Code | Read | 1=No Inhibit Faults Present, 2=Generator hi-press Analog Switch PT1 >672 mmHg, 3=Low Refrigerant Temp Analog RT8 < 33F (0.56C), 4=Auxiliary TB1-31 Device Opened, 5=Leaving Chilled Liquid Temp < Setpoint, 6=Unit Shutdown by Remote Device, 7=HW Valve Loaded>10% Close to <9% to Restart, 8=Steam Valve Loaded >10% Close to <9% to Restart, 9=Unit Shutdown by Multi-Unit Remote | |
| MV | 8 | UNIT INTERNAL FAULT CODE | Unit Internal Fault Code | Read | 1=No Internal Faults Present, 2=Watchdog - Software Reboot, 3=Internal User Interface Error, 4=User Interface unable to establish comms with control | |
| AV | 30 | ACTIVE MAX LOAD LIMIT SP | Active Maximum Load Limit Setpoint | % | Read | |
| AV | 32 | WEEKLY PURGE COUNTER | Weekly Purge Counter | Read | ||
| AV | 33 | PULLDOWN INTERVAL TIMER | Pulldown Interval Timer - Minutes | Min | Read | |
| AV | 35 | PULLDOWN DEMAND SP START | Pulldown Demand Setpoint - Start Load Limit | % | Read | |
| AV | 36 | PULLDOWN DEMAND SP STOP | Pulldown Demand Setpoint - Stop Load Limit | % | Read | |
| AV | 37 | PURGE TANK PRESSURE | Purge Tank Pressure | mmHg | Read | |
| AV | 38 | PURGE PUMP PRESSURE | Purge Pump Pressure | mmHg | Read | |
| AV | 39 | STRONG SOLUTION LVG HEAT EXCH | Strong Solution Leaving Heat Exchanger | °F | Read | |
| BV | 26 | REFRIG LVL SOL | Refrigerant Level Solenoid | Read | 0=Open, 1=Closed |
No points match these filters.
Object ID lookup: York YIA point IDs by name
AV1REM LEAVING CHW TEMP SPAV2REM LOAD LIMIT SPBV1REM RUN STOP CMDAV5LEAVING CHW TEMPAV6ENTERING CHW TEMPAV7GENERATOR PRESSUREAV10LEAVING COND WATER TEMPAV11ENTERING COND WATER TEMPAV12AUTO DECRYSTLZATION TEMPAV13REFRIG TEMP LEAVING CONDAV14STEAM HOT WATER SUP TEMPAV15STEAM SUPPLY PRESSUREAV16STEAM HT WTR ACT VLV POSAV18PURGE PMP SERV INTRVL SPAV19LEAVING CHW TEMP ACT SPAV21REFRIGERANT TEMPAV22STRONG SOLUTION TEMPAV23STRONG SOLUTION CONCAV26ACCUM OPERATING HOURSBV5REFRIG MOTOR STATUSBV6COND MOTOR STATUSBV7CHW PUMP STATBV10SOLU ABSORB PMP MTR STATBV12PURGE PMP MTR STATBV14REFRIG STAB SOL VLV STATBV17REFRIG LVL FLO SW STATMV1OPERATIONAL CODEMV2SAFETY SHUTDOWN CODEMV3CYCLING SHUTDOWN CODEMV4WARNING MESSAGE CODEMV5UNIT CONTROL SOURCEMV6UNIT CONTROL STATUS CODEMV7UNIT INHIBIT FAULT CODEMV8UNIT INTERNAL FAULT CODEAV30ACTIVE MAX LOAD LIMIT SPAV32WEEKLY PURGE COUNTERAV33PULLDOWN INTERVAL TIMERAV35PULLDOWN DEMAND SP STARTAV36PULLDOWN DEMAND SP STOPAV37PURGE TANK PRESSUREAV38PURGE PUMP PRESSUREAV39STRONG SOLUTION LVG HEAT EXCHBV26REFRIG LVL SOL
Integration notes
- Access is inferred: the sheet has no read/write column. The remote block (AV 1-2, BV 1) is treated as commandable; everything else as read-only.
- Status-code MVs (MV 1-4, MV 6-8) are the printed code + 1, as the doc's status code tables say. MV 5 is shown as printed, from 0; BACnet multistate values start at 1, so the card may report the printed number + 1. Confirm by discovery.
- Steam supply pressure only applies to steam units; generator and purge pressures are in mmHg.
- This list has no MV 65001 Units object and no AV copies of the code MVs.
- Spare objects (AV 3-4, BV 2-4 and the empty rows) are left out.
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 YIA Absorption Chiller (SC-EQ) 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 YIA Absorption Chiller (SC-EQ)
How many BACnet points does the York YIA Absorption Chiller (SC-EQ) have?
This list has 43 BACnet objects: 26 analog values, 9 binary values, 8 multi-state values. The exact set on a given unit depends on its firmware, installed options and configuration.
Which York YIA Absorption Chiller (SC-EQ) BACnet points are writable?
3 of the 43 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. The source has no read/write column, so this is inferred from object type.
Where is the official York YIA Absorption Chiller (SC-EQ) BACnet documentation?
The source is YIA SC-EQ BAS Points List, revision Rev 1.1, 2020-12-18, published free by York at https://docs.johnsoncontrols.com/chillers/api/khub/documents/MgPyIEusbCBvjQ2NPPH0uw/content.
What are the minimum BACnet points to integrate the York YIA Absorption Chiller (SC-EQ)?
Start with BV 1 REM RUN STOP CMD (Remote run/stop (1 = run)); AV 1 REM LEAVING CHW TEMP SP (Remote leaving chilled water setpoint); AV 2 REM LOAD LIMIT SP (Remote load limit, %); MV 1 OPERATIONAL CODE (Operating state (ready, starting, running)); MV 5 UNIT CONTROL SOURCE (Control source; ISN (BAS) for BMS control); AV 5 LEAVING CHW TEMP (Leaving chilled water temperature); AV 6 ENTERING CHW TEMP (Return chilled water temperature); MV 2 SAFETY SHUTDOWN CODE (Safety shutdown code (1 = none)); MV 3 CYCLING SHUTDOWN CODE (Cycling shutdown code (1 = none)).
How do I enable BMS control of the York YIA Absorption Chiller (SC-EQ)?
BV 1 REM RUN STOP CMD (0 = Stop, 1 = Run) is the BAS run/stop; AV 1 and AV 2 are the remote setpoints. MV 5 shows the control source (Local, ISN, Analog, Digital); it should read ISN for BAS control. The points list has no write-enable point.
How do I check these points on the real YIA Absorption Chiller (SC-EQ)?
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
- Centrifugal chiller retrofit control panel (via SC-EQ card)
York Competitive Retrofit Chiller Panel (SC-EQ)
Other makers' centrifugal chillers retrofitted with a YORK by Johnson Controls OptiView-style control panel and the SC-EQ communication card.
Also known as: YORK competitive retrofit, OptiView retrofit panel, CR SC-EQ, SC-EQ, SE-SCC1001-1 - Packaged rooftop unit controller (ECO2, 50-130 ton)
York ECO2 Rooftop Unit, 50-130 ton, Mod D/E (IPU 1, native BACnet MS/TP)
YORK ECO2 Mod D and Mod E packaged rooftop units, 50 to 130 tons, with the IPU 1 microboard.
Also known as: YORK ECO2, ECO 2, IPU 1, IPU1, YORK Series 100, Series 100 rooftop, ECO2 Native - Dedicated outdoor air system (DOAS) controller
York JDHA DOAS, Option D19 Space Temperature Control (BACnet MS/TP card)
YORK JDHA dedicated outdoor air units with the Option D19 space temperature control program and the BHB8 BACnet card.
Also known as: JDHA, YORK JDHA, Option D19, D19, 100.55-O1, LD18545, DOAS - Make-up air unit / DOAS controller
York JDMA DOAS, Option D21 Makeup Air Control (BACnet MS/TP card)
YORK JDMA dedicated outdoor air units with the Option D21 makeup air control program and the BHB8 BACnet card.
Also known as: JDMA, YORK JDMA, Option D21, D21, 100.55-O2, LD18456, DOAS, makeup air - Water-cooled self-contained unit controller (IPU2)
York L-Series LSWU / LSWD / LSWF Water-Cooled Self-Contained Unit, 25-105 ton (IPU2, native BACnet MS/TP)
YORK L-Series LSWU, LSWD and LSWF water-cooled self-contained air conditioning units, 25-105 ton, with the IPU2 unit controller.
Also known as: LSWU, LSWD, LSWF, L-Series, IPU2, 145.05-NOM7, YSWU, YSWD, Versecon - Rooftop unit controller
York Millennium / Series 40 Packaged Rooftop Units 25-40 Ton with IPU Control
YORK Millennium (Series 40) 25, 30 and 40 ton packaged rooftop units with the IPU control, constant volume, VAV and FlexSys versions.
Also known as: YORK Millennium, Millennium 25-40 ton, Series 40 Rooftop, YORK Series 40, IPU control, 100.50-NOM8, LD14136 - Rooftop unit (packaged, via BACnet IP gateway kit)
York Roomtop RTC/RTH-L with YKN2Open BMS kit (BACnet IP)
York (Johnson Controls Europe) Roomtop RTC/RTH-L cooling and heat pump rooftops, ACTIVA and Large ACTIVA rooftops and VITALITY VAC/VAH/VCH-VIR units with the YKN2Open control and the S606791244 BACnet IP kit.
Also known as: Roomtop RTC-L, Roomtop RTH-L, YKN2Open, S606791244, FS-QS-1010-0122, ACTIVA Rooftop, Large ACTIVA Rooftop, VITALITY VAC, VITALITY VAH, VCH-VIR, N-40462 - Scroll chiller / heat pump / condensing unit
York Scroll Chiller / Heat Pump / Condensing Unit (native BACnet MS/TP)
YORK by Johnson Controls scroll-compressor chillers, heat pumps and condensing units (including YCWL and YLAE) with the 031-02550 board and its native BAS port.
Also known as: YORK scroll chiller, YORK scroll heat pump, YCWL, YLAE, 031-02550, C.MMC.13, C.MMC.14, C.MMC.16 - Scroll chiller / heat pump / condensing unit (via SC-EQ card)
York Scroll Chiller / Heat Pump / Condensing Unit (SC-EQ)
YORK by Johnson Controls scroll-compressor chillers, heat pumps and condensing units (one or two refrigerant systems, including the YCWL) fitted with the SC-EQ communication card.
Also known as: YORK scroll chiller, YORK scroll heat pump, YORK condensing unit, YCWL, SC-EQ, SE-SCC1001-1 - Scroll chiller / heat pump (via E-Link gateway)
York Scroll Chiller / Heat Pump / Condensing Unit - BAS (ISN) E-Link (YorkTalk 2)
YORK scroll chillers, heat pumps and condensing units (board 031-02550, including YCWL and YLAE variants named on the sheet), connected through a YORK E-Link gateway over YorkTalk 2.
Also known as: YORK scroll chiller, YCWL, YLAE, Scroll BAS, E-Link, eLink, YorkTalk 2, 031-02550 - Packaged rooftop unit controller (Series 100, 50-65 ton)
York Series 100 YPAL Rooftop, 50-65 ton, Mod F (IPU, native BACnet MS/TP)
YORK Series 100 YPAL single packaged rooftop units, 50-65 ton Mod F, with the IPU control board.
Also known as: YPAL, YORK Series 100, Series 100 rooftop, YPAL 50-65 Mod F, 100.50-NOM5, IPU - Packaged rooftop unit controller (Series 100, 70-150 ton)
York Series 100 YPAL Rooftop, 70-150 ton, Mod F/G (IPU, native BACnet MS/TP)
YORK Series 100 YPAL single packaged rooftop units, 70-105 ton Mod F and 120-150 ton Mod G, with the IPU control board.
Also known as: YPAL, YORK Series 100, Series 100 rooftop, YPAL 120-150 Mod G, YPAL 70-105 Mod F, 100.50-NOM11, 100.50-NOM9, IPU - Air-cooled variable-speed screw chiller
York YCAV / YCIV Air-Cooled Screw Chiller (native BACnet MS/TP)
YORK YCAV and YCIV air-cooled variable-speed screw chillers (up to four refrigerant systems) with the 031-03478 microboard and its native BAS port.
Also known as: YORK YCAV, YORK YCIV, 031-03478, YCAV_IV Native, Latitude - Air-cooled variable-speed screw chiller (via E-Link gateway)
York YCAV / YCIV Air-Cooled Screw Chiller - BAS E-Link (YorkTalk 2)
YORK YCAV and YCIV air-cooled screw chillers (1/2 and 3/4 compressor sections, microboard 031-02478), connected through a YORK E-Link gateway over YorkTalk 2.
Also known as: YORK YCAV, YORK YCIV, YCAV_YCIV BAS, E-Link, eLink, YorkTalk 2, 031-02478 - Water-cooled dual-compressor centrifugal chiller (via SC-EQ card)
York YD Dual-Compressor Centrifugal Chiller (SC-EQ)
YORK by Johnson Controls YD water-cooled centrifugal chillers with two compressors, fitted with the SC-EQ communication card.
Also known as: YD, YORK YD, SC-EQ, SC-EQUIP, SE-SCC1001-1, OptiView - Water-cooled centrifugal chiller (via E-Link gateway)
York YD Dual-Compressor Centrifugal Chiller - OptiView E-Link (YorkTalk 3)
YORK YD dual-compressor centrifugal chillers with OptiView panel, connected through a YORK E-Link gateway over YorkTalk 3.
Also known as: YORK YD, YD OptiView, E-Link, eLink, YorkTalk 3 - Water-cooled centrifugal chiller (via SC-EQ card)
York YK Centrifugal Chiller (SC-EQ)
YORK by Johnson Controls YK water-cooled centrifugal chillers (OptiView panel) fitted with the SC-EQ communication card.
Also known as: YK, YORK YK, SC-EQ, SC-EQUIP, SE-SCC1001-1, OptiView - Water-cooled centrifugal chiller (via E-Link gateway)
York YK Centrifugal Chiller with Electro-Mechanical or Solid State Starter - OptiView E-Link (YorkTalk 3)
YORK YK centrifugal chillers with OptiView panel and an electro-mechanical or solid-state starter, connected through a YORK E-Link gateway over YorkTalk 3.
Also known as: YORK YK, YK OptiView, YK SSS, YK EM starter, E-Link, eLink, YorkTalk 3 - Water-cooled centrifugal chiller (via E-Link gateway)
York YK Centrifugal Chiller with VSD - OptiView E-Link (YorkTalk 3)
YORK YK centrifugal chillers with OptiView panel and variable speed drive, connected through a YORK E-Link gateway over YorkTalk 3.
Also known as: YORK YK, YK OptiView, YK VSD, E-Link, eLink, YorkTalk 3, 031-01730, 031-02430 - Water-cooled centrifugal chiller with economizer compressor (via SC-EQ card)
York YK-EP Centrifugal Chiller (SC-EQ)
YORK by Johnson Controls YK-EP (Efficiency Plus) water-cooled centrifugal chillers, which pair the main compressor with an economizer compressor, fitted with the SC-EQ communication card.
Also known as: YK-EP, YKEP, YK EP, YK-EP Efficiency Plus, SC-EQ, SC-EQUIP, SE-SCC1001-1 - Water-cooled centrifugal chiller (via E-Link gateway)
York YK-EP Centrifugal Chiller with EM or SSS Starter - OptiView E-Link (YorkTalk 3)
YORK YK-EP (YKEP) centrifugal chillers with OptiView panel and electro-mechanical or solid-state starters, connected through a YORK E-Link gateway over YorkTalk 3.
Also known as: YORK YKEP, YK-EP, YKEP OptiView, E-Link, eLink, YorkTalk 3 - Water-cooled centrifugal chiller (via E-Link gateway)
York YK-EP Centrifugal Chiller with VSD - OptiView E-Link (YorkTalk 3)
YORK YK-EP (YKEP) centrifugal chillers with OptiView panel and variable speed drive, connected through a YORK E-Link gateway over YorkTalk 3.
Also known as: YORK YKEP, YK-EP, YKEP OptiView, E-Link, eLink, YorkTalk 3, 031-02430 - Water-cooled centrifugal heat pump chiller (via SC-EQ card)
York YKHT Centrifugal Heat Pump Chiller, YT3 panel (SC-EQ)
YORK YKHT two-stage centrifugal heat pump chillers with the YT3 control panel, fitted with the SC-EQ communication card.
Also known as: YORK YKHT, YKHT, YT3, YT3 YKHT, SC-EQ, YKHT heat pump chiller - Air-to-water modular heat pump (four-pipe)
York YMAE Four-Pipe Modular Heat Pump
YORK YMAE air-to-water modular heat pumps with inverter compressors in the four-pipe (simultaneous heating and cooling) version.
Also known as: YORK YMAE, YMAE-130, YMAE four pipe, air-to-water heat pump - Air-to-water modular heat pump (two-pipe)
York YMAE Two-Pipe Modular Heat Pump
YORK YMAE air-to-water modular heat pumps with inverter compressors in the two-pipe (heating or cooling) version.
Also known as: YORK YMAE, YMAE two pipe, YMAE 2-pipe, air-to-water heat pump - Water-cooled magnetic-bearing centrifugal chiller (via SC-EQ card)
York YMC2 Magnetic-Bearing Centrifugal Chiller (SC-EQ)
YORK by Johnson Controls YMC2 oil-free, magnetic-bearing centrifugal chillers with a variable speed drive, fitted with the SC-EQ communication card.
Also known as: YMC2, YORK YMC2, YMC², SC-EQ, SC-EQUIP, SE-SCC1001-1 - Water-cooled centrifugal chiller (via E-Link gateway)
York YMC2 Magnetic-Bearing Centrifugal Chiller - OptiView E-Link (YorkTalk 3)
YORK YMC2 magnetic-bearing centrifugal chillers with OptiView panel, connected through a YORK E-Link gateway over YorkTalk 3.
Also known as: YORK YMC2, YMC², YMC2 OptiView, E-Link, eLink, YorkTalk 3, 031-02430 - Water-cooled screw chiller (via SC-EQ card)
York YR Screw Chiller (OptiView, SC-EQ)
YORK YR water-cooled screw chillers with OptiView controls, fitted with the SC-EQ communication card.
Also known as: YORK YR, YR OptiView, YR chiller, SC-EQ, SE-SCC1001-1 - Water-cooled screw chiller (via E-Link gateway)
York YR Screw Chiller - OptiView E-Link (YorkTalk 3)
YORK YR water-cooled screw chillers with OptiView panel and standard or solid-state starter, connected through a YORK E-Link gateway over YorkTalk 3.
Also known as: YORK YR, YR OptiView, E-Link, eLink, YorkTalk 3, 031-01730, 031-02430 - Water-cooled screw chiller (via E-Link gateway)
York YS / YN Screw Chiller - OptiView E-Link (YorkTalk 3)
YORK YS and YN water-cooled screw chillers with OptiView panel and standard or solid-state starter, connected through a YORK E-Link gateway over YorkTalk 3.
Also known as: YORK YS, YORK YN, YS OptiView, YN OptiView, E-Link, eLink, YorkTalk 3 - Water-cooled screw chiller / heat pump (via SC-EQ card)
York YS / YS HP / YN Screw Chiller (SC-EQ)
YORK YS and YN water-cooled screw chillers and YS HP heat pumps with OptiView controls, fitted with the SC-EQ communication card.
Also known as: YORK YS, YS HP, YORK YN, YS heat pump, OptiView YS, SC-EQ, SE-SCC1001-1 - Air-cooled screw chiller
York YSAA Air-Cooled Screw Chiller (native BACnet MS/TP)
YORK YSAA air-cooled screw chillers (two refrigerant systems) with the 031-02550 board and its native BAS port.
Also known as: YORK YSAA, YSAA chiller, 031-02550, YSAA Native - Air-cooled screw chiller (via E-Link gateway)
York YSAA Air-Cooled Screw Chiller - BAS (ISN) E-Link (YorkTalk 2)
YORK YSAA air-cooled screw chillers (board 031-02550), connected through a YORK E-Link gateway over YorkTalk 2.
Also known as: YORK YSAA, YSAA BAS, E-Link, eLink, YorkTalk 2, 031-02550 - Steam-turbine-driven centrifugal chiller (via SC-EQ card)
York YST Steam Turbine Chiller (SC-EQ)
YORK YST steam-turbine-driven centrifugal chillers fitted with the SC-EQ communication card.
Also known as: YORK YST, YST chiller, steam turbine drive chiller, SC-EQ, SE-SCC1001-1 - Steam turbine driven centrifugal chiller (via E-Link gateway)
York YST Steam Turbine Chiller - OptiView E-Link (YorkTalk 3)
YORK YST steam turbine driven centrifugal chillers with OptiView panel, connected through a YORK E-Link gateway over YorkTalk 3.
Also known as: YORK YST, YST OptiView, steam turbine chiller, E-Link, eLink, YorkTalk 3 - Water-cooled centrifugal chiller (via SC-EQ card)
York YT Centrifugal Chiller (SC-EQ)
YORK YT water-cooled centrifugal chillers with OptiView controls, fitted with the SC-EQ communication card (VSD, solid-state or electro-mechanical starters).
Also known as: YORK YT, YT chiller, OptiView YT, SC-EQ, SE-SCC1001-1 - Water-cooled centrifugal chiller (via E-Link gateway)
York YT Centrifugal Chiller (Standard or Solid State Starter) - OptiView E-Link (YorkTalk 3)
YORK YT centrifugal chillers with OptiView panel and a standard (electro-mechanical) or solid-state starter, connected through a YORK E-Link gateway over YorkTalk 3.
Also known as: YORK YT, YT OptiView, E-Link, eLink, YorkTalk 3, 031-01730, 031-02430 - Water-cooled centrifugal chiller (via E-Link gateway)
York YT Centrifugal Chiller with VSD - OptiView E-Link (YorkTalk 3)
YORK YT centrifugal chillers with OptiView panel and variable speed drive, connected through a YORK E-Link gateway over YorkTalk 3.
Also known as: YORK YT, YT OptiView, YT VSD, E-Link, eLink, YorkTalk 3 - Air-cooled variable-speed screw chiller
York YVAA / YVFA / YAGK Chiller (native BACnet MS/TP)
YORK YVAA, YVFA (free cooling) and YAGK air-cooled variable-speed screw chillers with the 031-03478 board and its native BAS port.
Also known as: YORK YVAA, YORK YVFA, YORK YAGK, YVAA native, 031-03478, Y.ACS.20 - Air-cooled variable-speed screw chiller (via SC-EQ card)
York YVAA / YVFA / YAGK Chiller (SC-EQ)
YORK YVAA, YVFA (free cooling) and YAGK air-cooled variable-speed screw chillers (two refrigerant systems) fitted with the SC-EQ communication card.
Also known as: YORK YVAA, YORK YVFA, YORK YAGK, YVAA, YVFA, YAGK, SC-EQ, SE-SCC1001-1 - Air-cooled variable-speed screw chiller (via SC-EQ card)
York YVAA / YVFA / YAGK Chiller, YT3 panel (SC-EQ)
YORK YVAA, YVFA (free cooling) and YAGK air-cooled variable-speed screw chillers (two refrigerant systems) fitted with the SC-EQ communication card and the YT3 control panel.
Also known as: YORK YVAA, YORK YVFA, YORK YAGK, YVAA, YVFA, YAGK, SC-EQ, SE-SCC1001-1, YT3, YVAA YT3 - Air-cooled variable-speed screw chiller (via E-Link gateway)
York YVAA / YVFA / YAGK E-Link (YorkTalk 2)
YORK YVAA, YVFA (free cooling) and YAGK air-cooled variable-speed screw chillers with 031-02478 or 031-03478 microboards, connected through a YORK E-Link gateway over YorkTalk 2.
Also known as: YORK YVAA, YORK YVFA, YAGK, E-Link, eLink, YorkTalk 2, 031-02478, 031-03478 - Air-cooled variable-speed screw chiller (via SC-EQ card)
York YVAA Style B Chiller (SC-EQ)
YORK YVAA Style B air-cooled variable-speed screw chillers (two refrigerant systems) fitted with the SC-EQ communication card.
Also known as: YORK YVAA, YVAA Style B, YVAA-B, SC-EQ, SE-SCC1001-1 - Air-cooled magnetic-bearing centrifugal chiller (via SC-EQ card)
York YVAM Air-Cooled Magnetic-Bearing Centrifugal Chiller (SC-EQ)
YORK YVAM air-cooled magnetic-bearing centrifugal chillers fitted with the SC-EQ communication card.
Also known as: YORK YVAM, YVAM chiller, YVAM mag bearing, SC-EQ, SE-SCC1001-1 - Water-cooled variable-speed screw chiller / heat pump (via SC-EQ card)
York YVWA Water-Cooled Variable-Speed Screw Chiller (SC-EQ)
YORK YVWA water-cooled variable-speed screw chillers (one or two compressors, chiller or heat pump mode) fitted with the SC-EQ communication card.
Also known as: YORK YVWA, YVWA chiller, YVWA heat pump, SC-EQ, SE-SCC1001-1 - Water-cooled variable-speed screw chiller (via E-Link gateway)
York YVWA Water-Cooled Variable-Speed Screw Chiller - BAS E-Link (YorkTalk 2)
YORK YVWA water-cooled variable-speed screw chillers (microboards 031-02478 / 031-03478), connected through a YORK E-Link gateway over YorkTalk 2.
Also known as: YORK YVWA, YVWA BAS, E-Link, eLink, YorkTalk 2, 031-02478, 031-03478 - Water-cooled screw chiller / water-to-water heat pump (via SC-EQ card)
York YVWH / YVWE / YGWH Water-Cooled Screw (SC-EQ)
YORK YVWH and YGWH water-to-water screw heat pumps and YVWE water-cooled screw chillers fitted with the SC-EQ communication card.
Also known as: YORK YVWH, YVWH-200, YORK YVWE, YORK YGWH, SC-EQ, water-to-water screw heat pump - Water-cooled magnetic-bearing centrifugal chiller (via SC-EQ card)
York YZ Magnetic-Bearing Centrifugal Chiller (SC-EQ)
YORK YZ water-cooled magnetic-bearing centrifugal chillers (variable speed drive) fitted with the SC-EQ communication card.
Also known as: YORK YZ, YZ chiller, YZ mag bearing, SC-EQ, SE-SCC1001-1, OptiView
Source: YIA SC-EQ BAS Points List · rev. Rev 1.1, 2020-12-18. Object names, instances and units are reproduced as published; descriptions are our own.