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Air-cooled variable-speed screw chiller · BACnet points list
York YVAA / YVFA / YAGK Chiller (native BACnet MS/TP) BACnet points list
Updated 4 November 2026
YVAA, YVFA and YAGK chillers with the 031-03478 board have BACnet MS/TP, Modbus RTU and N2 built in, so no gateway is needed. The BAS writes the remote setpoint, current limit, sound limit and start/stop (AV 1-3, BV 1). Everything else is read-only AI and BI objects: chilled liquid and ambient temperatures, per-system pressures, temperatures, % FLA, hours, starts, kW, VSD values, condenser fan data, free cooling values, operational, fault and warning codes, and the chiller alarm.
This page lists 116 BACnet objects for the York YVAA / YVFA / YAGK Chiller (native BACnet MS/TP) — 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
- YVAA / YVFA / YAGK Chiller (native BACnet MS/TP)
- Equipment
- Air-cooled variable-speed screw chiller
- Equipment type
- Chillers
- BACnet objects
- 116 (4 writable)
- Transport
- BACnet MS/TP
- Firmware
- Y.ACS.20.02 to Y.ACS.20.20 and later (031-03476-010)
- Also known as
- YORK YVAA, YORK YVFA, YORK YAGK, YVAA native, 031-03478, Y.ACS.20
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 YVAA / YVFA / YAGK Chiller (native BACnet MS/TP)
Put the chiller in remote control (BI 12 reads Remote), then start it with BV 1 and write the remote setpoint (AV 1) and current limit (AV 2); the setpoint and limit only take effect while the start command is active. Read BI 2 for chiller run, the leaving chilled liquid temperature, VSD frequency, BI 1 for the chiller alarm and the per-system fault codes for the cause.
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 | START_STOP | Remote start/stop (1 = run) | Write |
| AV 1 | REM_SETP | Remote leaving chilled liquid setpoint | Write |
| AV 2 | DMD_LIMIT | Remote current limit, % FLA | Write |
| BI 2 | CH_RUN | Chiller running | Read |
| BI 12 | LOCAL_REMOTE | Must read Remote (1) for BMS control | Read |
| AI 1 | LCHLT | Leaving chilled liquid temperature | Read |
| AI 26 | VSD_OUT_FR | Compressor VSD frequency (load indication) | Read |
| BI 1 | CH_ALARM | Chiller alarm | Read |
| AI 32 | S1_FTL_CODE | Sys 1 fault code (0 = none) | Read |
| AI 33 | S2_FLT_CODE | Sys 2 fault code (0 = none) | Read |
Enable & remote start
BI 12 shows Local or Remote control mode. The sheet gives no point to change it and no write-enable point. The remote setpoint (AV 1) and current limit (AV 2) only take effect while the start command is active.
Heartbeat & communication loss
Operational code 67 is 'Loss of External Communications'; the sheet gives no timeout or heartbeat point.
Network setup
- BACnet MS/TP, Modbus RTU and N2 are native on the 031-03478 board; a gateway is only needed for Connected Services.
- The sheet gives no default MAC address, baud rate or device instance.
Watch out for
- Most data are AI/BI objects, not AV/BV; only AV 1-3 and BV 1 are writable.
- The remote sound limit (AV 3) is ignored unless the remote sound limit option is enabled.
- Fault codes are per system (AI 32-33); alarm on BI 1 and read both codes for the cause.
York YVAA / YVFA / YAGK Chiller (native BACnet MS/TP) 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.
| Description | States | |||||
|---|---|---|---|---|---|---|
| AVmin | 1 | REM_SETP | Remote setpoint (start command must be active) | °F | Write | |
| AVmin | 2 | DMD_LIMIT | Remote current limit (start command must be active) | % FLA | Write | |
| AV | 3 | SND_LIMIT | Remote sound limit (RSL option must be enabled) | % | Write | |
| BVmin | 1 | START_STOP | Remote Start / Stop Command | Write | 0=Stop, 1=Run | |
| AImin | 1 | LCHLT | Leaving Chilled Liquid Temperature | °F | Read | |
| AI | 2 | ECHLT | Entering Chilled Liquid Temperature | °F | Read | |
| AI | 3 | EV_ELT | Evaporator Entering Liquid Temperature (Free Cooling) | °F | Read | |
| AI | 4 | VSD_IA_TEMP | VSD Internal Ambient Temperature | °F | Read | |
| AI | 5 | S1_COND_TEMP | Sys 1 Condenser Temperature | °F | Read | |
| AI | 6 | S2_COND_TEMP | Sys 2 Condenser Temperature | °F | Read | |
| AI | 7 | S1_DSCH_TEMP | Sys 1 Discharge Temperature | °F | Read | |
| AI | 8 | S2_DSCH_TEMP | Sys 2 Discharge Temperature | °F | Read | |
| AI | 9 | OAT | Ambient Air Temperature | °F | Read | |
| AI | 10 | S1_EDT_TEMP | Sys 1 Eductor Temperature | °F | Read | |
| AI | 11 | S2_EDT_TEMP | Sys 2 Eductor Temperature | °F | Read | |
| AI | 12 | S1_OIL_PRESS | Sys 1 Oil Pressure | PSI | Read | |
| AI | 13 | S2_OIL_PRESS | Sys 2 Oil Pressure | PSI | Read | |
| AI | 14 | S1_SUCT_PRES | Sys 1 Suction Pressure | PSI | Read | |
| AI | 15 | S2_SUCT_PRES | Sys 2 Suction Pressure | PSI | Read | |
| AI | 16 | S1_DSCH_PRES | Sys 1 Discharge Pressure | PSI | Read | |
| AI | 17 | S2_DSCH_PRES | Sys 2 Discharge Pressure | PSI | Read | |
| AI | 18 | S1_MC_FLA | Sys 1 Motor Current FLA | % | Read | |
| AI | 19 | S2_MC_FLA | Sys 2 Motor Current FLA | % | Read | |
| AI | 20 | S1_OP_HRS | Sys 1 Operating Hours | Read | ||
| AI | 21 | S2_OP_HRS | Sys 2 Operating Hours | Read | ||
| AI | 22 | S1_COMP_ST | Sys 1 Compressor Starts | Read | ||
| AI | 23 | S2_COMP_ST | Sys 2 Compressor Starts | Read | ||
| AI | 24 | S1_HI_MTR_T | Sys 1 Highest Motor Temperature | °F | Read | |
| AI | 25 | S2_HI_MTR_T | Sys 2 Highest Motor Temperature | °F | Read | |
| AImin | 26 | VSD_OUT_FR | VSD Output Frequency | Hz | Read | |
| AI | 27 | VSD_CMD_FR | VSD Command Frequency | Hz | Read | |
| AI | 28 | S1_COND_DR | Sys 1 Condenser Drain Valve % Open | % | Read | |
| AI | 29 | S2_COND_DR | Sys 2 Condenser Drain Valve % Open | % | Read | |
| AI | 30 | S1_OP_CODE | Sys 1 Operational Code | Read | 63=Manual Override, 64=Daily Schedule Shutdown, 65=Unit Switch OFF, 66=Remote Controlled Shutdown, 67=Loss of External Communications, 68=Flow Switch Shutdown, 69=VSD Cooling Shutdown, 70=Serial Number Shutdown, 72=Discharge Superheat Recovery, 74=No Run Permissive, 75=Anti-Recycle Timer Active, 76=System Switch OFF, 77=System Not Running, 78=System Running, 79=Discharge Pressure Limiting, 80=Suction Pressure Limiting, 81=Motor Current Limiting, 82=Free Cooling, 83=ISN/BAS Motor Current Limiting, 84=Remote Motor Current Limiting, 85=System Shutting Down, 86=VSD Pre-Charging, 87=VSD Baseplate Temp Limiting, 88=VSD Internal Ambient Temp Limiting, 89=Sound Limiting, 90=ISN Sound Limiting, 91=Remote Sound Limiting, 92=Pulldown Motor Current Limiting, 93=Cooling Demand Shutdown, 94=Input Current Limiting, 95=ISN Input Current Limiting, 96=Remote Input Current Limiting, 97=Pulldown Input Current Limiting | |
| AI | 31 | S2_OP_CODE | Sys 2 Operational Code | Read | 63=Manual Override, 64=Daily Schedule Shutdown, 65=Unit Switch OFF, 66=Remote Controlled Shutdown, 67=Loss of External Communications, 68=Flow Switch Shutdown, 69=VSD Cooling Shutdown, 70=Serial Number Shutdown, 72=Discharge Superheat Recovery, 74=No Run Permissive, 75=Anti-Recycle Timer Active, 76=System Switch OFF, 77=System Not Running, 78=System Running, 79=Discharge Pressure Limiting, 80=Suction Pressure Limiting, 81=Motor Current Limiting, 82=Free Cooling, 83=ISN/BAS Motor Current Limiting, 84=Remote Motor Current Limiting, 85=System Shutting Down, 86=VSD Pre-Charging, 87=VSD Baseplate Temp Limiting, 88=VSD Internal Ambient Temp Limiting, 89=Sound Limiting, 90=ISN Sound Limiting, 91=Remote Sound Limiting, 92=Pulldown Motor Current Limiting, 93=Cooling Demand Shutdown, 94=Input Current Limiting, 95=ISN Input Current Limiting, 96=Remote Input Current Limiting, 97=Pulldown Input Current Limiting | |
| AImin | 32 | S1_FTL_CODE | Sys 1 Fault Code | Read | 0=No Fault Code, 1=Low Ambient Temperature, 2=High Ambient Temperature, 3=Low Chilled Liquid Temperature, 4=VSD Initialization Failure, 5=Low RTC Battery Voltage, 6=Invalid Number of Compressors Selected, 7=VSD Communications Failure, 8=Pre-charge Low DC Bus Voltage (Unit), 9=Pre-charge DC Bus Voltage Imbalance (Unit), 10=High DC Bus Voltage (Unit), 11=Low DC Bus Voltage (Unit), 12=DC Bus Voltage Imbalance (Unit), 13=High VSD Ambient Temperature, 14=Single Phase Input (Unit), 15=VSD Power Supply Fault, 16=VSD Logic Board Fault, 17=Motor Current Overload (Hardware), 18=CT Plug Fault, 19=High Harmonic Filter Temperature, 20=Evap Anti-Freeze Pump Fault, 21=Low Heat Exchanger Temperature, 27=High Discharge Pressure (Software), 28=High Differential Oil Pressure, 29=Low Differential Oil Pressure, 30=Low Suction Pressure, 31=High Discharge Temperature, 33=Eductor Clog Fault, 34=Sensor Failure, 35=Low Motor Current, 36=High Motor Temperature, 37=Pre-charge Low DC Bus Voltage (System, Frame E/F), 38=Pre-charge DC Bus Voltage Imbalance (System, Frame E/F), 39=High DC Bus Voltage (System, Frame E/F), 40=Low DC Bus Voltage (System, Frame E/F), 41=DC Bus Voltage Imbalance (System, Frame E/F), 42=High Motor Current, 43=Motor Current Overload (Software), 44=IGBT Gate Driver Fault, 45=High Baseplate Temperature, 46=Single Phase Input (System, Frame E/F), 47=VSD Run Signal Fault, 48=High Discharge Pressure (Hardware - HPCO), 49=Low Suction Superheat, 50=Control Voltage Fault, 51=Low Discharge Superheat, 52=Low Suction Pressure Smart Freeze, 53=Isolation Valve Failed to Close Warning, 54=Isolation Valve Failed to Open Fault, 55=High Discharge Pressure Rate, 56=Condenser Fan VSD Warning | |
| AImin | 33 | S2_FLT_CODE | Sys 2 Fault Code | Read | 0=No Fault Code, 1=Low Ambient Temperature, 2=High Ambient Temperature, 3=Low Chilled Liquid Temperature, 4=VSD Initialization Failure, 5=Low RTC Battery Voltage, 6=Invalid Number of Compressors Selected, 7=VSD Communications Failure, 8=Pre-charge Low DC Bus Voltage (Unit), 9=Pre-charge DC Bus Voltage Imbalance (Unit), 10=High DC Bus Voltage (Unit), 11=Low DC Bus Voltage (Unit), 12=DC Bus Voltage Imbalance (Unit), 13=High VSD Ambient Temperature, 14=Single Phase Input (Unit), 15=VSD Power Supply Fault, 16=VSD Logic Board Fault, 17=Motor Current Overload (Hardware), 18=CT Plug Fault, 19=High Harmonic Filter Temperature, 20=Evap Anti-Freeze Pump Fault, 21=Low Heat Exchanger Temperature, 27=High Discharge Pressure (Software), 28=High Differential Oil Pressure, 29=Low Differential Oil Pressure, 30=Low Suction Pressure, 31=High Discharge Temperature, 33=Eductor Clog Fault, 34=Sensor Failure, 35=Low Motor Current, 36=High Motor Temperature, 37=Pre-charge Low DC Bus Voltage (System, Frame E/F), 38=Pre-charge DC Bus Voltage Imbalance (System, Frame E/F), 39=High DC Bus Voltage (System, Frame E/F), 40=Low DC Bus Voltage (System, Frame E/F), 41=DC Bus Voltage Imbalance (System, Frame E/F), 42=High Motor Current, 43=Motor Current Overload (Software), 44=IGBT Gate Driver Fault, 45=High Baseplate Temperature, 46=Single Phase Input (System, Frame E/F), 47=VSD Run Signal Fault, 48=High Discharge Pressure (Hardware - HPCO), 49=Low Suction Superheat, 50=Control Voltage Fault, 51=Low Discharge Superheat, 52=Low Suction Pressure Smart Freeze, 53=Isolation Valve Failed to Close Warning, 54=Isolation Valve Failed to Open Fault, 55=High Discharge Pressure Rate, 56=Condenser Fan VSD Warning | |
| AI | 34 | S1_FAN_STG | Sys 1 condenser fan stage, 0-14 | Read | ||
| AI | 35 | S2_FAN_STG | Sys 2 condenser fan stage, 0-14 | Read | ||
| AI | 36 | S1_FAN_SPD | Sys 1 Condenser Fan Speed (VSD) | % | Read | |
| AI | 37 | S2_FAN_SPD | Sys 2 Condenser Fan Speed (VSD) | % | Read | |
| AI | 38 | LEAD | Lead System | Read | ||
| AI | 39 | LCHLT_SETP | Leaving Chilled Liquid Setpoint | °F | Read | |
| AI | 40 | LCHLT_CUTOUT | Leaving Chilled Liquid Cutout | °F | Read | |
| AI | 41 | S1_ECON_VLV | Sys 1 Economizer Valve % Open | % | Read | |
| AI | 42 | S2_ECON_VLV | Sys 2 Economizer Valve % Open | % | Read | |
| AI | 43 | SUCT_PRS_CUT | Suction Pressure Cutout | PSI | Read | |
| AI | 44 | VSD_DCB_VT | VSD DC bus voltage (unit), or Sys 1 on Frame E/F | Volts | Read | |
| AI | 45 | VSD_DCB_VT2 | VSD DC Bus Voltage Sys 2 (Frame E/F) | Volts | Read | |
| AI | 46 | REM_SETPOINT | Remote Leaving Chilled Liquid Setpoint | °F | Read | |
| AI | 47 | S1_SUBCOOL | Sys 1 Subcooling (Microchannel) | °F (diff) | Read | |
| AI | 48 | S1_EVAP_LL | Sys 1 Evaporator Liquid Level (Round Tube) | % | Read | |
| AI | 49 | S2_SUBCOOL | Sys 2 Subcooling (Microchannel) | °F (diff) | Read | |
| AI | 50 | S2_EVAP_LL | Sys 2 Evaporator Liquid Level (Round Tube) | % | Read | |
| AI | 51 | COOLING_RNG | Cooling Range | °F | Read | |
| AI | 52 | S1_DSC_SHEAT | Sys 1 Discharge Superheat | °F (diff) | Read | |
| AI | 53 | S2_DSC_SHEAT | Sys 2 Discharge Superheat | °F (diff) | Read | |
| AI | 54 | S1_SYS_STATE | Sys 1 System State | Read | 0=Stopped, 1=Running, 2=Faulted, 4=Locked Out, 5=Pre-Run | |
| AI | 55 | S2_SYS_STATE | Sys 2 System State | Read | 0=Stopped, 1=Running, 2=Faulted, 4=Locked Out, 5=Pre-Run | |
| AI | 56 | S1_MTR_OVER | Sys 1 Motor Current Overload Setting | Amps | Read | |
| AI | 57 | S2_MTR_OVER | Sys 2 Motor Current Overload Setting | Amps | Read | |
| AI | 58 | FAN_TYPE | Condenser fan control type | Read | 1=Std. VSD, 2=Opt. VSD, 3=Std. Staged, 4=Opt. Staged, 5=Std. VSD with Interlock, 6=Opt. VSD with Interlock, 7=Opt. ENH, 8=Opt. ENH XL | |
| AI | 59 | FC_MODE | Free Cooling Mode (Free Cooling) | Read | 0=Mech, 1=Free Cool, 2=Hybrid | |
| AI | 60 | FC_CTRL | Free cooling control programmed (free cooling) | % | Read | 0=Disabled, 1=Open Loop, 2=Closed Loop |
| AI | 61 | CC_BYP_VALVE | Cooling Coil Bypass Valve (Free Cooling Closed Loop) | % | Read | |
| AI | 62 | CC_VALVE | Cooling Coil Valve (Free Cooling Closed Loop) | % | Read | |
| AI | 63 | CC_TEMP | Cooling Coil Temperature (Free Cooling Closed Loop) | °F | Read | |
| AI | 64 | HX_LEAVE_TEMP | Heat Exchanger Leaving Temperature (Free Cooling Closed Loop) | °F | Read | |
| AI | 65 | HX_ENTER_TEMP | Heat Exchanger Entering Temperature (Free Cooling Closed Loop) | °F | Read | |
| AI | 66 | GLY_PMP_SPD | Glycol Pump Speed (Free Cooling Closed Loop) | % | Read | |
| AI | 67 | 1_SUCT_TEMP | Sys 1 Suction Temperature (YAGK) | °F | Read | |
| AI | 68 | 1_SAT_SUCT | Sys 1 Sat Suction Temperature (YAGK) | °F | Read | |
| AI | 69 | 1_SUCT_SHEAT | Sys 1 Suction Superheat (YAGK) | °F (diff) | Read | |
| AI | 70 | 1_FTDV_CMD | Sys 1 Flash Tank Drain Valve % (YAGK) | % | Read | |
| AI | 71 | 2_SUCT_TEMP | Sys 2 Suction Temperature (YAGK) | °F | Read | |
| AI | 72 | 2_SAT_SUCT | Sys 2 Sat Suction Temperature (YAGK) | °F | Read | |
| AI | 73 | 2_SUCT_SHEAT | Sys 2 Suction Superheat (YAGK) | °F (diff) | Read | |
| AI | 74 | 2_FTDV_CMD | Sys 2 Flash Tank Drain Valve % (YAGK) | % | Read | |
| AI | 75 | INPUT_CURR | Unit Input Current Amps | Amps | Read | |
| AI | 76 | 1_FAN_KW | Sys 1 Fan Kw | Read | ||
| AI | 77 | 1_COMP_KW | Sys 1 Compressor Kw | Read | ||
| AI | 78 | 2_FAN_KW | Sys 2 Fan Kw | Read | ||
| AI | 79 | 2_COMP_KW | Sys 2 Compressor Kw | Read | ||
| AI | 80 | S1_XL_SPD_CMD | Sys 1 XL Condenser Fan Speed Command | % | Read | |
| AI | 81 | S2_XL_SPD_CMD | Sys 2 XL Condenser Fan Speed Command | % | Read | |
| AI | 82 | S1_WARN_CODE | Sys 1 Warning Code | Read | 0=No Warning Set, 1=Quarterly Service Required - Contact JCI, 2=Yearly Service Required - Contact JCI, 3=3 Year Service Required - Contact JCI, 4=5 Year Service Required - Contact JCI, 5=Replace Oil Filter | |
| AI | 83 | S2_WARN_CODE | Sys 2 Warning Code | Read | 0=No Warning Set, 1=Quarterly Service Required - Contact JCI, 2=Yearly Service Required - Contact JCI, 3=3 Year Service Required - Contact JCI, 4=5 Year Service Required - Contact JCI, 5=Replace Oil Filter | |
| BImin | 1 | CH_ALARM | Chiller Alarm | Read | 0=No Alarm, 1=Alarm | |
| BImin | 2 | CH_RUN | Chiller Run | Read | 0=No Run, 1=Run | |
| BI | 3 | EVAP_HEATER | Evaporator Heater Status | Read | ||
| BI | 4 | EVAP_PUMP | Evaporator Pump Status | Read | ||
| BI | 5 | S1_COMP_RUN | Sys 1 Compressor Run Status | Read | ||
| BI | 6 | S2_COMP_RUN | Sys 2 Compressor Run Status | Read | ||
| BI | 7 | S1_VI_STEP1 | Sys 1 VI Step Solenoid Valve 1 Status | Read | ||
| BI | 8 | S2_VI_STEP1 | Sys 2 VI Step Solenoid Valve 1 Status | Read | ||
| BI | 9 | S1_VI_STEP2 | Sys 1 VI Step Solenoid Valve 2 Status | Read | ||
| BI | 10 | S2_VI_STEP2 | Sys 2 VI Step Solenoid Valve 2 Status | Read | ||
| BI | 11 | WATER_GLYCOL | Cooling Type | Read | 0=Water, 1=Glycol | |
| BImin | 12 | LOCAL_REMOTE | Local Remote Control Mode | Read | 0=Local, 1=Remote | |
| BI | 13 | DISP_UNITS | Display Units | Read | 0=Imperial, 1=SI | |
| BI | 14 | S1_LOCKOUT | Sys 1 Lockout | Read | ||
| BI | 15 | S2_LOCKOUT | Sys 2 Lockout | Read | ||
| BI | 16 | FC_VALVE | Free Cooling Valve (Free Cooling) | Read | 0=Off, 1=On | |
| BI | 17 | SOFT_SHUT | Soft Shutdown | Read | 0=Disabled, 1=Enabled | |
| BI | 18 | REM_EVAP | Remote Evaporator | Read | 0=Disabled, 1=Enabled | |
| BI | 19 | QUICK_ST | Quick Start | Read | 0=Disabled, 1=Enabled | |
| BI | 20 | FRAME_EF | Frame E/F | Read | 0=Disabled, 1=Enabled | |
| BI | 21 | SOUND_OP | Sound Limit Option | Read | 0=Disabled, 1=Enabled | |
| BI | 22 | GLY_PMP_RUN | Glycol Pump Run (Free Cooling Closed Loop) | Read | 0=Off, 1=On | |
| BI | 23 | GLY_HEATER | Glycol Heater (Free Cooling Closed Loop) | Read | 0=Off, 1=On | |
| BI | 24 | FLOW_SWITCH | Flow switch status | Read | 0=Off, 1=On | |
| BI | 25 | S1_COND_FAN_VSD_FAULT | Sys 1 condenser fan VSD fault | Read | ||
| BI | 26 | S2_COND_FAN_VSD_FAULT | Sys 2 condenser fan VSD fault | Read | ||
| BI | 27 | EVAP_AF_FLSW | Evap Anti-Freeze Flow Switch | Read | ||
| BI | 28 | EVAP_AF_PUMP | Evap Anti-Freeze Pump Run | Read | ||
| BI | 29 | RDY_TO_START | Ready To Start | Read |
No points match these filters.
Object ID lookup: York YVAA / YVFA / YAGK native point IDs by name
AV1REM_SETPAV2DMD_LIMITAV3SND_LIMITBV1START_STOPAI1LCHLTAI2ECHLTAI3EV_ELTAI4VSD_IA_TEMPAI5S1_COND_TEMPAI6S2_COND_TEMPAI7S1_DSCH_TEMPAI8S2_DSCH_TEMPAI9OATAI10S1_EDT_TEMPAI11S2_EDT_TEMPAI12S1_OIL_PRESSAI13S2_OIL_PRESSAI14S1_SUCT_PRESAI15S2_SUCT_PRESAI16S1_DSCH_PRESAI17S2_DSCH_PRESAI18S1_MC_FLAAI19S2_MC_FLAAI20S1_OP_HRSAI21S2_OP_HRSAI22S1_COMP_STAI23S2_COMP_STAI24S1_HI_MTR_TAI25S2_HI_MTR_TAI26VSD_OUT_FRAI27VSD_CMD_FRAI28S1_COND_DRAI29S2_COND_DRAI30S1_OP_CODEAI31S2_OP_CODEAI32S1_FTL_CODEAI33S2_FLT_CODEAI34S1_FAN_STGAI35S2_FAN_STGAI36S1_FAN_SPDAI37S2_FAN_SPDAI38LEADAI39LCHLT_SETPAI40LCHLT_CUTOUTAI41S1_ECON_VLVAI42S2_ECON_VLVAI43SUCT_PRS_CUTAI44VSD_DCB_VTAI45VSD_DCB_VT2AI46REM_SETPOINTAI47S1_SUBCOOLAI48S1_EVAP_LLAI49S2_SUBCOOLAI50S2_EVAP_LLAI51COOLING_RNGAI52S1_DSC_SHEATAI53S2_DSC_SHEATAI54S1_SYS_STATEAI55S2_SYS_STATEAI56S1_MTR_OVERAI57S2_MTR_OVERAI58FAN_TYPEAI59FC_MODEAI60FC_CTRLAI61CC_BYP_VALVEAI62CC_VALVEAI63CC_TEMPAI64HX_LEAVE_TEMPAI65HX_ENTER_TEMPAI66GLY_PMP_SPDAI671_SUCT_TEMPAI681_SAT_SUCTAI691_SUCT_SHEATAI701_FTDV_CMDAI712_SUCT_TEMPAI722_SAT_SUCTAI732_SUCT_SHEATAI742_FTDV_CMDAI75INPUT_CURRAI761_FAN_KWAI771_COMP_KWAI782_FAN_KWAI792_COMP_KWAI80S1_XL_SPD_CMDAI81S2_XL_SPD_CMDAI82S1_WARN_CODEAI83S2_WARN_CODEBI1CH_ALARMBI2CH_RUNBI3EVAP_HEATERBI4EVAP_PUMPBI5S1_COMP_RUNBI6S2_COMP_RUNBI7S1_VI_STEP1BI8S2_VI_STEP1BI9S1_VI_STEP2BI10S2_VI_STEP2BI11WATER_GLYCOLBI12LOCAL_REMOTEBI13DISP_UNITSBI14S1_LOCKOUTBI15S2_LOCKOUTBI16FC_VALVEBI17SOFT_SHUTBI18REM_EVAPBI19QUICK_STBI20FRAME_EFBI21SOUND_OPBI22GLY_PMP_RUNBI23GLY_HEATERBI24FLOW_SWITCHBI25S1_COND_FAN_VSD_FAULTBI26S2_COND_FAN_VSD_FAULTBI27EVAP_AF_FLSWBI28EVAP_AF_PUMPBI29RDY_TO_START
Integration notes
- Access follows the sheet's sections: analog and binary write points (AV, BV) and read-only points (AI, BI).
- The sheet marks every point Standard, Optional or Not available for seven firmware ranges. Points added in later firmware (free cooling closed loop, YAGK values, unit input current, kW, XL fan commands, flow switch, warning codes, anti-freeze and ready-to-start) are marked Not available on the early ranges and are kept; the spare objects (AV 4, BV 2-3) are left out.
- Free cooling points apply to YVFA units, YAGK points (suction temperature, superheat, flash tank drain valve) to YAGK units. Values that don't apply are sent as zero.
- Operational, fault and warning codes are numeric AIs; the states list the code values from the sheet's code tables.
- BI 25 and BI 26 are condenser fan VSD fault flags; the sheet's description column for them repeats the XL fan speed text.
- Units shown are imperial; SI units are in the sheet.
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 YVAA / YVFA / YAGK Chiller (native BACnet MS/TP) 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 YVAA / YVFA / YAGK Chiller (native BACnet MS/TP)
How many BACnet points does the York YVAA / YVFA / YAGK Chiller (native BACnet MS/TP) have?
This list has 116 BACnet objects: 83 analog inputs, 3 analog values, 29 binary inputs, 1 binary value. The exact set on a given unit depends on its firmware, installed options and configuration.
Which York YVAA / YVFA / YAGK Chiller (native BACnet MS/TP) BACnet points are writable?
4 of the 116 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 YVAA / YVFA / YAGK Chiller (native BACnet MS/TP) BACnet documentation?
The source is YVAA, YVFA, YAGK Native Modbus RTU, BACnet MS/TP, N2 Data Map, revision 2022-03-03, published free by York at https://docs.johnsoncontrols.com/chillers/api/khub/documents/Ul95oD3_Tkawi3qW9DkIug/content.
What are the minimum BACnet points to integrate the York YVAA / YVFA / YAGK Chiller (native BACnet MS/TP)?
Start with BV 1 START_STOP (Remote start/stop (1 = run)); AV 1 REM_SETP (Remote leaving chilled liquid setpoint); AV 2 DMD_LIMIT (Remote current limit, % FLA); BI 2 CH_RUN (Chiller running); BI 12 LOCAL_REMOTE (Must read Remote (1) for BMS control); AI 1 LCHLT (Leaving chilled liquid temperature); AI 26 VSD_OUT_FR (Compressor VSD frequency (load indication)); BI 1 CH_ALARM (Chiller alarm); AI 32 S1_FTL_CODE (Sys 1 fault code (0 = none)); AI 33 S2_FLT_CODE (Sys 2 fault code (0 = none)).
How do I enable BMS control of the York YVAA / YVFA / YAGK Chiller (native BACnet MS/TP)?
BI 12 shows Local or Remote control mode. The sheet gives no point to change it and no write-enable point. The remote setpoint (AV 1) and current limit (AV 2) only take effect while the start command is active.
Does the York YVAA / YVFA / YAGK Chiller (native BACnet MS/TP) need a BACnet heartbeat or have a communication timeout?
Operational code 67 is 'Loss of External Communications'; the sheet gives no timeout or heartbeat point.
How do I check these points on the real YVAA / YVFA / YAGK Chiller (native BACnet MS/TP)?
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 - Absorption chiller, steam or hot water (via SC-EQ card)
York YIA Absorption Chiller (SC-EQ)
YORK YIA steam- or hot-water-fired absorption chillers fitted with the SC-EQ communication card.
Also known as: YORK YIA, YIA absorption, SC-EQ, SE-SCC1001-1 - 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 (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: YVAA, YVFA, YAGK Native Modbus RTU, BACnet MS/TP, N2 Data Map · rev. 2022-03-03. Object names, instances and units are reproduced as published; descriptions are our own.