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Water-cooled centrifugal heat pump chiller (via SC-EQ card) · BACnet points list
York YKHT Centrifugal Heat Pump Chiller, YT3 panel (SC-EQ) BACnet points list
Updated 7 November 2026
The YKHT reaches a BAS through the SC-EQ communication card, which serves BACnet MS/TP (or Modbus RTU / N2). The BAS can start/stop the unit and write the leaving chilled liquid setpoint, current limit, hot water setpoint and a heating/cooling mode. Read-only points cover evaporator and condenser temperatures and pressures, low and high stage discharge temperatures and vane positions, motor, starter and VSD values, heating setpoints, cooling capacity and efficiency, control sources, and multistate operation, fault, warning, modified-run and start-inhibit codes with analog copies.
This page lists 127 BACnet objects for the York YKHT Centrifugal Heat Pump Chiller, YT3 panel (SC-EQ) — 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
- YKHT Centrifugal Heat Pump Chiller, YT3 panel (SC-EQ)
- Equipment
- Water-cooled centrifugal heat pump chiller (via SC-EQ card)
- Equipment type
- Chillers
- BACnet objects
- 127 (5 writable)
- Transport
- BACnet MS/TP
- Firmware
- SC-EQ release 5.12.0.17
- Also known as
- YORK YKHT, YKHT, YT3, YT3 YKHT, SC-EQ, YKHT heat pump chiller
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 YKHT Centrifugal Heat Pump Chiller, YT3 panel (SC-EQ)
Start and stop the unit with BV 1 and write the leaving chilled liquid setpoint (AV 1), current limit (AV 2) and, for heating, the hot water setpoint (AV 3) and mode (AV 4). Check the control-source points read BAS, then read MV 1 for the operating state, BV 5 for motor run, leaving water temperatures and % FLA, and MV 2 / MV 3 for safety and cycling shutdowns.
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 4 | REM HEAT COOL MODE | Mode: 0 cooling, 1 heating, 2 both | Command |
| AV 1 | REM LEAVING CHL TEMP SP | Remote leaving chilled liquid setpoint | Command |
| AV 3 | HOT WATER REMOTE SP | Remote hot water setpoint | Command |
| AV 2 | REMOTE INPUT CURRENT SP | Remote current limit, % | Command |
| MV 1 | UNIT OPERATION CODE | Operating state (stopped, starting, running) | Read |
| BV 5 | COMPR MOTOR STATUS | Compressor motor running | Read |
| AV 5 | LEAVING CH LIQ TEMP | Leaving chilled liquid temperature | Read |
| MV 2 | UNIT SAFETY FAULT CODE | Safety shutdown code (1 = none) | Read |
| MV 3 | UNIT CYCLING FAULT 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. MV 8 Run/Stop Control Source (Local, BAS, Hardwire) and MV 9-11 (cooling setpoint, heating setpoint and current limit sources) show where each command comes from; they should read BAS for BMS control. The sheet does not say how the sources are selected at the panel.
Network setup
- The sheet notes that the remote write points report as unreliable until the BAS writes them.
Watch out for
- Write all of AV 1-4 once after commissioning; until then they read unreliable.
- The MV status codes are offset by 1 from the printed codes; the AV copies are not.
- Hot water setpoint and heating points only matter on heat pump or heat recovery with hot water control enabled.
York YKHT Centrifugal Heat Pump Chiller, YT3 panel (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 CHL TEMP SP | Remote Leaving Chilled Liquid Setpoint | °F | Command | |
| AVmin | 2 | REMOTE INPUT CURRENT SP | Remote Input Current Limit Setpoint | % | Command | |
| AVmin | 3 | HOT WATER REMOTE SP | Remote Hot Water Setpoint | °F | Command | |
| AVmin | 4 | REM HEAT COOL MODE | Remote Heating Cooling Mode | Command | 0=Cooling, 1=Heating, 2=Cooling and Heating | |
| BVmin | 1 | REM RUN STOP CMD | Remote Run/Stop | Command | 0=Stop, 1=Run | |
| AVmin | 5 | LEAVING CH LIQ TEMP | Leaving Chilled Liquid Temperature | °F | Read | |
| AV | 6 | ENTERING CH LIQ TEMP | Entering Chilled Liquid Temperature | °F | Read | |
| AV | 7 | EVAPORATOR PRESSURE | Evaporator Pressure | PSIG | Read | |
| AV | 8 | CONDENSER PRESSURE | Condenser Pressure | PSIG | Read | |
| AV | 9 | OIL PRESSURE DIFERENTIAL | Oil Pressure Differential | PSID | Read | |
| AV | 10 | ENTERING COND WATER TEMP | Entering Condenser Liquid Temperature | °F | Read | |
| AV | 11 | LEAVING COND WATER TEMP | Leaving Condenser Liquid Temperature | °F | Read | |
| AV | 12 | MOTOR CURRENT PCT FLA | Motor % Full Load Amps | % | Read | |
| AV | 13 | MOTOR PHASE A CURRENT | Motor Phase A Current | Amps | Read | |
| AV | 14 | MOTOR PHASE B CURRENT | Motor Phase B Current | Amps | Read | |
| AV | 15 | MOTOR PHASE C CURRENT | Motor Phase C Current | Amps | Read | |
| AV | 16 | MOTOR PHASE A VOLTAGE | Motor Phase A Voltage | Volts | Read | |
| AV | 17 | MOTOR PHASE B VOLTAGE | Motor Phase B Voltage | Volts | Read | |
| AV | 18 | MOTOR PHASE C VOLTAGE | Motor Phase C Voltage | Volts | Read | |
| AV | 19 | LEAVING CH LIQ TEMP ACT SP | Leaving Chilled Liquid Setpoint - Selected | °F | Read | |
| AV | 20 | EVAP SATURATION TEMP | Evaporator Saturation Temperature | °F | Read | |
| AV | 21 | COND SATURATION TEMP | Condenser Saturation Temperature | °F | Read | |
| AV | 22 | LS DISCHARGE TEMP | Low Stage Discharge Temperature | °F | Read | |
| AV | 23 | HS DISCHARGE TEMP | High Stage Discharge Temperature | °F | Read | |
| AV | 24 | OIL SUMP TEMPERATURE | Oil Sump Temperature | °F | Read | |
| AV | 25 | COND REFRIGERANT LEVEL | Condenser Refrigerant Level | % | Read | |
| AV | 26 | DELTA P DIV P | Delta P / P | Read | ||
| AV | 27 | OPERATING HOURS | Operating Hours | Hr | Read | |
| AV | 28 | NUMBER OF STARTS | Number Of Starts | Read | ||
| AV | 29 | OIL SUMP PRESSURE | Oil Sump Pressure | PSIG | Read | |
| AV | 30 | OIL PUMP PRESSURE | Oil Pump Pressure | PSIG | Read | |
| BVmin | 5 | COMPR MOTOR STATUS | Motor Run | Read | 0=Off, 1=On | |
| BV | 6 | CH LIQ PUMP STAT | Chilled Liquid Pump | Read | 0=Off, 1=On | |
| BV | 7 | START STOP SWITCH STATUS | Panel Stop Switch | Read | 0=Off, 1=On | |
| BV | 8 | CH LIQ FLOW SWITCH STAT | Chilled Liquid Flow Switch | Read | 0=Open, 1=Closed | |
| BV | 9 | CND FLOW SWITCH STAT | Condenser Liquid Flow Switch | Read | 0=Open, 1=Closed | |
| BV | 10 | CND LIQ PUMP STAT | Condenser Liquid Pump | Read | 0=Off, 1=On | |
| AV | 31 | LS VGD POS | Low Stage VGD Position | % | Read | |
| AV | 32 | HS VGD POS | High Stage VGD Position | % | Read | |
| AV | 33 | HI WINDING TEMP | Highest Winding Temperature | °F | Read | |
| AV | 34 | MOTOR HOUSING TEMP | Motor Housing Temperature | °F | Read | |
| AV | 35 | VSD PHASE A CURR | VSD Phase A Current | Amps | Read | |
| AV | 36 | VSD PHASE B CURR | VSD Phase B Current | Amps | Read | |
| AV | 37 | VSD PHASE C CURR | VSD Phase C Current | Amps | Read | |
| BV | 11 | VSD HARMONIC FILTER INST | Harmonic Filter Installed | Read | 0=False, 1=True | |
| AV | 38 | ECONOMIZER PRESSURE | Economizer Pressure | PSIG | Read | |
| AV | 39 | ECON REFRIGERANT LEVEL | Economizer Refrigerant Level | % | Read | |
| MVmin | 1 | UNIT OPERATION CODE | Unit Operation Code | Read | 1=Unit Stopped - Ready To Start, 2=Unit Stopped - Local Shutdown, 3=Unit Stopped - Remote Shutdown, 4=Unit Stopped - Warning Active, 5=Unit Stopped - Cycling Shutdown, 6=Unit Stopped - Safety Shutdown, 7=Unit Start Inhibit, 8=Unit Starting, 9=Unit Running - No Abnormal Condition, 10=Unit Running - Warning Active, 11=Unit Running - Soft Shutdown, 12=Unit Coastdown, 13=Unit Running - Modified Run, 14=Unit Stopped - Internal Shutdown, 15=Unit Starting - MVVSD Startup - Drive Not Ready, 22=Unit Running - Cooling - No Abnormal Condition, 23=Unit Running - Cooling - Warning Active, 24=Unit Running - Cooling - Modified Run, 25=Unit Running - Heating - No Abnormal Condition, 26=Unit Running - Heating - Warning Active, 27=Unit Running - Heating - Modified Run, 28=Unit Running - Cooling & Heating - No Abnormal Condition, 29=Unit Running - Cooling & Heating - Warning Active, 30=Unit Running - Cooling & Heating - Modified Run | |
| AV | 401 | UNIT OPERATION CODE AV | Unit Operation Code AV | Read | 0=Unit Stopped - Ready To Start, 1=Unit Stopped - Local Shutdown, 2=Unit Stopped - Remote Shutdown, 3=Unit Stopped - Warning Active, 4=Unit Stopped - Cycling Shutdown, 5=Unit Stopped - Safety Shutdown, 6=Unit Start Inhibit, 7=Unit Starting, 8=Unit Running - No Abnormal Condition, 9=Unit Running - Warning Active, 10=Unit Running - Soft Shutdown, 11=Unit Coastdown, 12=Unit Running - Modified Run, 13=Unit Stopped - Internal Shutdown, 14=Unit Starting - MVVSD Startup - Drive Not Ready, 21=Unit Running - Cooling - No Abnormal Condition, 22=Unit Running - Cooling - Warning Active, 23=Unit Running - Cooling - Modified Run, 24=Unit Running - Heating - No Abnormal Condition, 25=Unit Running - Heating - Warning Active, 26=Unit Running - Heating - Modified Run, 27=Unit Running - Cooling & Heating - No Abnormal Condition, 28=Unit Running - Cooling & Heating - Warning Active, 29=Unit Running - Cooling & Heating - Modified Run | |
| MVmin | 2 | UNIT SAFETY FAULT CODE | Unit Safety Fault Code | Read | 1=No Safety Faults Present, 2=Evaporator - Low Pressure, 3=Evaporator - Transducer Or Leaving Liquid Probe, 4=Evaporator - Transducer Or Temperature Sensor, 5=Condenser - High Pressure Contacts Open, 6=Condenser - High Pressure, 7=Condenser - Pressure Transducer Out Of Range, 8=Auxiliary Safety - Contacts Closed, 9=Discharge - Low Temperature, 10=Discharge - High Temperature, 11=Oil - High Sump Temperature, 12=Oil - Low Differential Pressure, 13=Oil - High Differential Pressure, 14=Oil - Pump Pressure Transducer Out Of Range, 15=Oil - Sump Pressure Transducer Out Of Range, 17=Sales Order - Invalid Compressor Model, 19=Oil - Differential Pressure Calibration, 20=Safety Stop, 21=Oil - Variable Speed Pump - Setpoint Not Achieved, 22=Control Panel - Power Failure, 23=Control Panel – Loss of Control Voltage, 24=MOTOR OR STARTER - CURRENT IMBALANCE, 25=Thrust Bearing - Proximity Probe Clearance, 26=Thrust Bearing - Proximity Probe Uncalibrated, 27=Thrust Bearing - Proximity Probe Out Of Range, 31=VSD - 105 % MOTOR CURRENT OVERLOAD, 51=Oil Or Condenser Transducer Error, 53=Evaporator - Low Pressure - Smart Freeze, 54=Surge Protection - Excess Surge, 57=Thrust Bearing - Proximity Probe Clearance, 59=Low Stage VGD Actuator – Positioning Fault, 62=Motor - High Winding Temperature, 63=Motor - High Bearing Temperature, 64=VSD - HIGH PHASE A INVERTER BASEPLATE TEMPERATURE, 65=VSD - HIGH PHASE B INVERTER BASEPLATE TEMPERATURE, 66=VSD - HIGH PHASE C INVERTER BASEPLATE TEMPERATURE, 68=Condenser - High Pressure - Stopped, 69=OIL - HIGH SUPPLY TEMPERATURE, 70=Motor - High Bearing Vibration, 76=VSD - LOW FREQUENCY DETECTED, 80=MVSSS - PHASE ROTATION, 81=MVSSS - MOTOR OR STARTER - CURRENT IMBALANCE, 82=MVSSS - 105% MOTOR CURRENT OVERLOAD, 83=MVSSS - HIGH INSTANTANEOUS CURRENT, 84=MVSSS - FAILED SCR, 85=MVSSS - HIGH HEATSINK TEMPERATURE, 86=MVSSS - GROUND FAULT, 87=MVSSS - CONTACTOR FAULT, 88=MVSSS - CONTROL BOARD FAULT, 89=MVSSS - DISCONNECT FAULT, 90=VSD - POWER TRANSFORMER HIGH TEMPERATURE, 91=VSD - HIGH OUTPUT FREQUENCY, 92=MVVSD - GROUND FAULT, 93=VSD - MAIN CONTROL BOARD FAULT, 94=MVVSD - CONTACTOR FAULT, 95=MVVSD - INTERLOCK FAULT, 106=VSD - HIGH INSTANTANEOUS CURRENT, 107=MOTOR CURRENT > 15 %FLA, 108=VSD - FREQUENCY > 0 HZ, 113=Motor – Cooling Coil Leak, 137=Oil – High Sump Pressure, 161=COMPRESSOR – LOW DISCHARGE SUPERHEAT, 162=MVSSS - HIGH HEATSINK 1 TEMPERATURE, 163=MVSSS - HIGH HEATSINK 2 TEMPERATURE, 164=MVSSS - HIGH HEATSINK 3 TEMPERATURE, 165=MOTOR CONTROLLER - FAULT CONTACTS OPEN, 179=INTERNAL ERROR - NO TIMER HANDLES AVAILABLE, 180=WATCHDOG - SOFTWARE REBOOT, 183=OIL - VARIABLE SPEED PUMP - HIGH RATE OF CHANGE, 187=OIL - LOW SUPPLY TEMPERATURE, 188=OIL – HIGH VISCOSITY, 189=OIL – LOW VISCOSITY, 190=OIL – HIGH DILUTION | |
| AV | 402 | UNIT SAFETY FAULT CODE AV | Unit Safety Fault Code AV | Read | 0=No Safety Faults Present, 1=Evaporator - Low Pressure, 2=Evaporator - Transducer Or Leaving Liquid Probe, 3=Evaporator - Transducer Or Temperature Sensor, 4=Condenser - High Pressure Contacts Open, 5=Condenser - High Pressure, 6=Condenser - Pressure Transducer Out Of Range, 7=Auxiliary Safety - Contacts Closed, 8=Discharge - Low Temperature, 9=Discharge - High Temperature, 10=Oil - High Sump Temperature, 11=Oil - Low Differential Pressure, 12=Oil - High Differential Pressure, 13=Oil - Pump Pressure Transducer Out Of Range, 14=Oil - Sump Pressure Transducer Out Of Range, 16=Sales Order - Invalid Compressor Model, 18=Oil - Differential Pressure Calibration, 19=Safety Stop, 20=Oil - Variable Speed Pump - Setpoint Not Achieved, 21=Control Panel - Power Failure, 22=Control Panel – Loss of Control Voltage, 23=MOTOR OR STARTER - CURRENT IMBALANCE, 24=Thrust Bearing - Proximity Probe Clearance, 25=Thrust Bearing - Proximity Probe Uncalibrated, 26=Thrust Bearing - Proximity Probe Out Of Range, 30=VSD - 105 % MOTOR CURRENT OVERLOAD, 50=Oil Or Condenser Transducer Error, 52=Evaporator - Low Pressure - Smart Freeze, 53=Surge Protection - Excess Surge, 56=Thrust Bearing - Proximity Probe Clearance, 58=Low Stage VGD Actuator – Positioning Fault, 61=Motor - High Winding Temperature, 62=Motor - High Bearing Temperature, 63=VSD - HIGH PHASE A INVERTER BASEPLATE TEMPERATURE, 64=VSD - HIGH PHASE B INVERTER BASEPLATE TEMPERATURE, 65=VSD - HIGH PHASE C INVERTER BASEPLATE TEMPERATURE, 67=Condenser - High Pressure - Stopped, 68=OIL - HIGH SUPPLY TEMPERATURE, 69=Motor - High Bearing Vibration, 75=VSD - LOW FREQUENCY DETECTED, 79=MVSSS - PHASE ROTATION, 80=MVSSS - MOTOR OR STARTER - CURRENT IMBALANCE, 81=MVSSS - 105% MOTOR CURRENT OVERLOAD, 82=MVSSS - HIGH INSTANTANEOUS CURRENT, 83=MVSSS - FAILED SCR, 84=MVSSS - HIGH HEATSINK TEMPERATURE, 85=MVSSS - GROUND FAULT, 86=MVSSS - CONTACTOR FAULT, 87=MVSSS - CONTROL BOARD FAULT, 88=MVSSS - DISCONNECT FAULT, 89=VSD - POWER TRANSFORMER HIGH TEMPERATURE, 90=VSD - HIGH OUTPUT FREQUENCY, 91=MVVSD - GROUND FAULT, 92=VSD - MAIN CONTROL BOARD FAULT, 93=MVVSD - CONTACTOR FAULT, 94=MVVSD - INTERLOCK FAULT, 105=VSD - HIGH INSTANTANEOUS CURRENT, 106=MOTOR CURRENT > 15 %FLA, 107=VSD - FREQUENCY > 0 HZ, 112=Motor – Cooling Coil Leak, 136=Oil – High Sump Pressure, 160=COMPRESSOR – LOW DISCHARGE SUPERHEAT, 161=MVSSS - HIGH HEATSINK 1 TEMPERATURE, 162=MVSSS - HIGH HEATSINK 2 TEMPERATURE, 163=MVSSS - HIGH HEATSINK 3 TEMPERATURE, 164=MOTOR CONTROLLER - FAULT CONTACTS OPEN, 178=INTERNAL ERROR - NO TIMER HANDLES AVAILABLE, 179=WATCHDOG - SOFTWARE REBOOT, 182=OIL - VARIABLE SPEED PUMP - HIGH RATE OF CHANGE, 186=OIL - LOW SUPPLY TEMPERATURE, 187=OIL – HIGH VISCOSITY, 188=OIL – LOW VISCOSITY, 189=OIL – HIGH DILUTION | |
| MVmin | 3 | UNIT CYCLING FAULT CODE | Unit Cycling Fault Code | Read | 1=No Cycling Faults Present, 3=System Cycling - Contacts Open, 4=Oil - Low Temperature Differential, 5=Oil - Low Sump Temperature, 6=Control Panel - Power Failure, 7=Leaving Chilled Liquid - Low Temperature, 8=Leaving Chilled Liquid - Flow Switch Open, 9=Condenser - Flow Switch Open, 10=MOTOR CONTROLLER - FAULT CONTACTS OPEN, 11=MOTOR CONTROLLER - LOSS OF CURRENT, 12=POWER FAULT, 16=Proximity Probe - Low Supply Voltage, 17=Oil - Variable Speed Pump - Drive Contacts Open, 18=VSD - INITIALIZATION FAILED, 19=Reserved, 26=VSD - SINGLE PHASE INPUT POWER, 29=VSD - LOW DC BUS VOLTAGE, 38=VSD - PRECHARGE - LOW DC BUS VOLTAGE, 40=VSD - RUN SIGNAL, 71=Control Panel – Loss of Control Voltage, 78=ECONOMIZER - PRESSURE XDCR OUT OF RANGE, 86=VSD - LOSS OF COOLING FAN, 87=VSD - HIGH INSTANTANEOUS CURRENT, 89=ECONOMIZER - LEVEL HIGH, 90=MVSSS - POWER FAULT, 91=MVSSS - HIGH SUPPLY LINE VOLTAGE, 92=MVSSS - LOW SUPPLY LINE VOLTAGE, 93=MVSSS - RUN SIGNAL, 96=MVSSS - LOGIC BOARD POWER SUPPLY, 97=MVSSS - PHASE LOSS, 98=REFRIGERANT TYPE NOT SET, 103=VSD - DC BUS VOLTAGE IMBALANCE - AU, 104=VSD - DC BUS VOLTAGE IMBALANCE - AL, 105=VSD - DC BUS VOLTAGE IMBALANCE - BU, 106=VSD - DC BUS VOLTAGE IMBALANCE - BL, 107=VSD - DC BUS VOLTAGE IMBALANCE - CU, 108=VSD - DC BUS VOLTAGE IMBALANCE - CL, 109=VSD - PRECHARGE - DC BUS VOLTAGE IMBALANCE - AU, 110=VSD - PRECHARGE - DC BUS VOLTAGE IMBALANCE - AL, 111=VSD - PRECHARGE - DC BUS VOLTAGE IMBALANCE - BU, 112=VSD - PRECHARGE - DC BUS VOLTAGE IMBALANCE - BL, 113=VSD - PRECHARGE - DC BUS VOLTAGE IMBALANCE - CU, 114=VSD - PRECHARGE - DC BUS VOLTAGE IMBALANCE - CL, 115=VSD - HIGH DC BUS VOLTAGE - AU, 116=VSD - HIGH DC BUS VOLTAGE - AL, 117=VSD - HIGH DC BUS VOLTAGE - BU, 118=VSD - HIGH DC BUS VOLTAGE - BL, 119=VSD - HIGH DC BUS VOLTAGE - CU, 120=VSD - HIGH DC BUS VOLTAGE - CL, 121=VSD - GATE DRIVER - ANU, 122=VSD - GATE DRIVER - ANL, 123=VSD - GATE DRIVER - AMU, 124=VSD - GATE DRIVER - AML, 125=VSD - GATE DRIVER - BNU, 126=VSD - GATE DRIVER - BNL, 127=VSD - GATE DRIVER - BMU, 128=VSD - GATE DRIVER - BML, 129=VSD - GATE DRIVER - CNU, 130=VSD - GATE DRIVER - CNL, 131=VSD - GATE DRIVER - CMU, 132=VSD - GATE DRIVER - CML, 133=VSD - INPUT POWER SUPPLY, 143=Low Stage VGD Actuator – Serial Communications, 155=MVSSS - SERIAL RECEIVE, 157=Leaving Condenser Liquid - High Temperature, 158=Condenser - Freeze Threat - Flow Switch Open, 174=Evaporator - Low Pressure, 175=Expansion I/O – Serial Communications, 176=Evaporator - Low Pressure - Smart Freeze, 187=MOTOR CONTROLLER - INITIALIZATION FAILURE, 188=MOTOR CONTROLLER - SERIAL COMMUNICATIONS | |
| AV | 403 | UNIT CYCLING FAULT CODE AV | Unit Cycling Fault Code AV | Read | 0=No Cycling Faults Present, 2=System Cycling - Contacts Open, 3=Oil - Low Temperature Differential, 4=Oil - Low Sump Temperature, 5=Control Panel - Power Failure, 6=Leaving Chilled Liquid - Low Temperature, 7=Leaving Chilled Liquid - Flow Switch Open, 8=Condenser - Flow Switch Open, 9=MOTOR CONTROLLER - FAULT CONTACTS OPEN, 10=MOTOR CONTROLLER - LOSS OF CURRENT, 11=POWER FAULT, 15=Proximity Probe - Low Supply Voltage, 16=Oil - Variable Speed Pump - Drive Contacts Open, 17=VSD - INITIALIZATION FAILED, 18=Reserved, 25=VSD - SINGLE PHASE INPUT POWER, 28=VSD - LOW DC BUS VOLTAGE, 37=VSD - PRECHARGE - LOW DC BUS VOLTAGE, 39=VSD - RUN SIGNAL, 70=Control Panel – Loss of Control Voltage, 77=ECONOMIZER - PRESSURE XDCR OUT OF RANGE, 85=VSD - LOSS OF COOLING FAN, 86=VSD - HIGH INSTANTANEOUS CURRENT, 88=ECONOMIZER - LEVEL HIGH, 89=MVSSS - POWER FAULT, 90=MVSSS - HIGH SUPPLY LINE VOLTAGE, 91=MVSSS - LOW SUPPLY LINE VOLTAGE, 92=MVSSS - RUN SIGNAL, 95=MVSSS - LOGIC BOARD POWER SUPPLY, 96=MVSSS - PHASE LOSS, 97=REFRIGERANT TYPE NOT SET, 102=VSD - DC BUS VOLTAGE IMBALANCE - AU, 103=VSD - DC BUS VOLTAGE IMBALANCE - AL, 104=VSD - DC BUS VOLTAGE IMBALANCE - BU, 105=VSD - DC BUS VOLTAGE IMBALANCE - BL, 106=VSD - DC BUS VOLTAGE IMBALANCE - CU, 107=VSD - DC BUS VOLTAGE IMBALANCE - CL, 108=VSD - PRECHARGE - DC BUS VOLTAGE IMBALANCE - AU, 109=VSD - PRECHARGE - DC BUS VOLTAGE IMBALANCE - AL, 110=VSD - PRECHARGE - DC BUS VOLTAGE IMBALANCE - BU, 111=VSD - PRECHARGE - DC BUS VOLTAGE IMBALANCE - BL, 112=VSD - PRECHARGE - DC BUS VOLTAGE IMBALANCE - CU, 113=VSD - PRECHARGE - DC BUS VOLTAGE IMBALANCE - CL, 114=VSD - HIGH DC BUS VOLTAGE - AU, 115=VSD - HIGH DC BUS VOLTAGE - AL, 116=VSD - HIGH DC BUS VOLTAGE - BU, 117=VSD - HIGH DC BUS VOLTAGE - BL, 118=VSD - HIGH DC BUS VOLTAGE - CU, 119=VSD - HIGH DC BUS VOLTAGE - CL, 120=VSD - GATE DRIVER - ANU, 121=VSD - GATE DRIVER - ANL, 122=VSD - GATE DRIVER - AMU, 123=VSD - GATE DRIVER - AML, 124=VSD - GATE DRIVER - BNU, 125=VSD - GATE DRIVER - BNL, 126=VSD - GATE DRIVER - BMU, 127=VSD - GATE DRIVER - BML, 128=VSD - GATE DRIVER - CNU, 129=VSD - GATE DRIVER - CNL, 130=VSD - GATE DRIVER - CMU, 131=VSD - GATE DRIVER - CML, 132=VSD - INPUT POWER SUPPLY, 142=Low Stage VGD Actuator – Serial Communications, 154=MVSSS - SERIAL RECEIVE, 156=Leaving Condenser Liquid - High Temperature, 157=Condenser - Freeze Threat - Flow Switch Open, 173=Evaporator - Low Pressure, 174=Expansion I/O – Serial Communications, 175=Evaporator - Low Pressure - Smart Freeze, 186=MOTOR CONTROLLER - INITIALIZATION FAILURE, 187=MOTOR CONTROLLER - SERIAL COMMUNICATIONS | |
| MV | 4 | UNIT WARNING CODE | Unit Warning Code | Read | 1=No Warnings Present, 2=Real-Time Clock Failure, 3=Setpoint Override, 4=Condenser Or Evaporator Transducer Error, 5=Evaporator - Low Pressure Limit, 6=Condenser - High Pressure Limit, 7=WARNING - OIL - HIGH SUPPLY TEMPERATURE, 8=COMPRESSOR - LOW DISCHARGE SUPERHEAT LIMIT, 9=WARNING - CONDENSER - HIGH TUBE CLEANING TIME, 13=WARNING - SALES ORDER - INVALID SERIAL NUMBER, 14=VGD Not Calibrated, 27=External I/O - Serial Communications, 28=WARNING - MMB - SERIAL COMMUNICATIONS, 30=Surge Protection - Excess Surge Limit, 31=Excess Surge Detected, 41=Motor – High Winding Temperature, 42=Motor – High Bearing Temperature, 43=Motor – High Bearing Vibration, 44=Motor – Bearing Vibration Baseline Not Set, 47=Condenser- Freeze Threat From Low Pressure, 48=Liquid Level Setpoint Not Achieved, 50=Loss Of Subcooler Liquid Seal, 51=Oil - High Sump Pressure, 79=COND OR ECON XDCR ERROR, 80=EVAP OR ECON XDCR ERROR, 88=ECON LIQUID LEVEL SETPOINT NOT ACHIEVED, 146=WARNING - QUARTERLY SERVICE REQUIRED - CONTACT JCI, 147=WARNING - YEARLY SERVICE REQUIRED - CONTACT JCI, 148=WARNING - 3 YEAR SERVICE REQUIRED - CONTACT JCI, 149=WARNING - CHECK OIL SYSTEM, 150=WARNING - CONDENSER - HIGH SMALL TEMP DIFFERENCE, 152=WARNING - CONTROL PANEL - INTERNAL ERROR, 153=WARNING - COMPRESSOR - LOW DISCHARGE SUPERHEAT, 154=WARNING - CONDENSER - LIQUID LEVEL STABILITY, 155=WARNING - OIL - LOW SUPPLY TEMPERATURE | |
| AV | 404 | UNIT WARNING CODE AV | Unit Warning Code AV | Read | 0=No Warnings Present, 1=Real-Time Clock Failure, 2=Setpoint Override, 3=Condenser Or Evaporator Transducer Error, 4=Evaporator - Low Pressure Limit, 5=Condenser - High Pressure Limit, 6=WARNING - OIL - HIGH SUPPLY TEMPERATURE, 7=COMPRESSOR - LOW DISCHARGE SUPERHEAT LIMIT, 8=WARNING - CONDENSER - HIGH TUBE CLEANING TIME, 12=WARNING - SALES ORDER - INVALID SERIAL NUMBER, 13=VGD Not Calibrated, 26=External I/O - Serial Communications, 27=WARNING - MMB - SERIAL COMMUNICATIONS, 29=Surge Protection - Excess Surge Limit, 30=Excess Surge Detected, 40=Motor – High Winding Temperature, 41=Motor – High Bearing Temperature, 42=Motor – High Bearing Vibration, 43=Motor – Bearing Vibration Baseline Not Set, 46=Condenser- Freeze Threat From Low Pressure, 47=Liquid Level Setpoint Not Achieved, 49=Loss Of Subcooler Liquid Seal, 50=Oil - High Sump Pressure, 78=COND OR ECON XDCR ERROR, 79=EVAP OR ECON XDCR ERROR, 87=ECON LIQUID LEVEL SETPOINT NOT ACHIEVED, 145=WARNING - QUARTERLY SERVICE REQUIRED - CONTACT JCI, 146=WARNING - YEARLY SERVICE REQUIRED - CONTACT JCI, 147=WARNING - 3 YEAR SERVICE REQUIRED - CONTACT JCI, 148=WARNING - CHECK OIL SYSTEM, 149=WARNING - CONDENSER - HIGH SMALL TEMP DIFFERENCE, 151=WARNING - CONTROL PANEL - INTERNAL ERROR, 152=WARNING - COMPRESSOR - LOW DISCHARGE SUPERHEAT, 153=WARNING - CONDENSER - LIQUID LEVEL STABILITY, 154=WARNING - OIL - LOW SUPPLY TEMPERATURE | |
| MV | 5 | UNIT CONTROL SOURCE | Unit Control Source | Read | 0=Local, 1=ISN (BAS), 2=Analog, 3=Digital, 4=Modem, 5=Remote | |
| AV | 405 | UNIT CONTROL SOURCE AV | Unit Control Source AV | Read | 0=Local, 1=ISN (BAS), 2=Analog, 3=Digital, 4=Modem, 5=Remote | |
| MV | 6 | UNIT MODIFIED RUN CODE | Unit Modified Run Code | Read | 1=No Modified Run Conditions Present, 5=Motor - Pulldown Limit, 6=Motor - High Current Limit, 7=Motor Controller - Input Pulldown Limit, 8=Motor Controller - High Input Power Limit, 9=Load Control Mode, 10=COMPRESSOR - SUCTION FLOW LIMIT, 11=VSD - DC BUS ACTIVE, 12=VSD - Input Pulldown Limit, 14=Discharge – Low Superheat Limit | |
| AV | 406 | UNIT MODIFIED RUN CODE AV | Unit Modified Run Code AV | Read | 0=No Modified Run Conditions Present, 4=Motor - Pulldown Limit, 5=Motor - High Current Limit, 6=Motor Controller - Input Pulldown Limit, 7=Motor Controller - High Input Power Limit, 8=Load Control Mode, 9=COMPRESSOR - SUCTION FLOW LIMIT, 10=VSD - DC BUS ACTIVE, 11=VSD - Input Pulldown Limit, 13=Discharge – Low Superheat Limit | |
| MV | 7 | UNIT START INHIBIT CODE | Unit Start Inhibit Code | Read | 1=No Inhibit Faults Present, 2=ANTI-RECYCLE, 8=MOTOR CONTROLLER - INITIALIZATION IN PROGRESS, 10=MVSSS - HIGH HEATSINK TEMPERATURE - STOPPED, 12=Line Frequency Not Set, 13=Oil – High Sump Pressure - Stopped, 14=Low Stage VGD Actuator – Feedback Not Calibrated, 17=Low Stage VGD Actuator – Stroke Not Calibrated, 21=MVSSS - HIGH HEATSINK 1 TEMPERATURE - STOPPED, 22=MVSSS - HIGH HEATSINK 2 TEMPERATURE - STOPPED, 23=MVSSS - HIGH HEATSINK 3 TEMPERATURE - STOPPED, 25=OIL – HIGH DILUTION INHIBIT, 26=OIL – LOW VISCOSITY INHIBIT, 27=OIL – LOW TEMPERATURE DIFFERENTIAL, 28=ECONOMIZER - LEVEL HIGH STOPPED | |
| AV | 407 | UNIT START INHIBIT CODE AV | Unit Start Inhibit Code AV | Read | 0=No Inhibit Faults Present, 1=ANTI-RECYCLE, 7=MOTOR CONTROLLER - INITIALIZATION IN PROGRESS, 9=MVSSS - HIGH HEATSINK TEMPERATURE - STOPPED, 11=Line Frequency Not Set, 12=Oil – High Sump Pressure - Stopped, 13=Low Stage VGD Actuator – Feedback Not Calibrated, 16=Low Stage VGD Actuator – Stroke Not Calibrated, 20=MVSSS - HIGH HEATSINK 1 TEMPERATURE - STOPPED, 21=MVSSS - HIGH HEATSINK 2 TEMPERATURE - STOPPED, 22=MVSSS - HIGH HEATSINK 3 TEMPERATURE - STOPPED, 24=OIL – HIGH DILUTION INHIBIT, 25=OIL – LOW VISCOSITY INHIBIT, 26=OIL – LOW TEMPERATURE DIFFERENTIAL, 27=ECONOMIZER - LEVEL HIGH STOPPED | |
| AV | 40 | PROX SENSOR ACT POS | High Speed Thrust Bearing Proximity Position | Mils | Read | |
| AV | 41 | PROX SENSOR REF POS | High Speed Thrust Bearing Proximity Reference | Mils | Read | |
| AV | 42 | ANTI RECYCLE TIME REMAIN | Anti-Recycle Time Remaining | Min | Read | |
| AV | 43 | VSD OUTPUT VOLTAGE | VSD Output Voltage | Volts | Read | |
| AV | 44 | VSD PHS A OUT VOLT RMS | VSD Phase A Output Voltage (RMS) | Volts | Read | |
| AV | 45 | VSD PHS B OUT VOLT RMS | VSD Phase B Output Voltage (RMS) | Volts | Read | |
| AV | 46 | VSD PHS C OUT VOLT RMS | VSD Phase C Output Voltage (RMS) | Volts | Read | |
| AV | 47 | VSD PHASE A OUTPT CURR PEAK | VSD Phase A Output Current (Peak) | Amps | Read | |
| AV | 48 | VSD PHASE B OUTPT CURR PEAK | VSD Phase B Output Current (Peak) | Amps | Read | |
| AV | 49 | VSD PHASE C OUTPT CURR PEAK | VSD Phase C Output Current (Peak) | Amps | Read | |
| AV | 50 | VSD INPUT POWER | VSD Input Power | kW | Read | |
| AV | 51 | VSD INPUT KWH | VSD Input Kilowatt Hours | kWh | Read | |
| AV | 52 | VSD DC BUS VOLTAGE | VSD DC Bus Voltage | Volts | Read | |
| AV | 53 | VSD OUTPUT FREQUENCY | VSD Output Frequency | Hz | Read | |
| AV | 54 | COND LEVEL CTRL VALVE CMD | Condenser Level Control Valve Command | % | Read | |
| AV | 55 | MTR SHAFT END TEMP | Motor Bearing Shaft End Temperature | °F | Read | |
| AV | 56 | MTR OP SHAFT END TEMP | Motor Bearing Opposite Shaft End Temperature | °F | Read | |
| AV | 57 | MTR WINDING AVG TEMP | Average Winding Temperature | °F | Read | |
| AV | 58 | COND REFRIGERANT LEVEL SP | Condenser Refrigerant Level Setpoint | % | Read | |
| AV | 59 | DROP LEG REFRIG TEMP | Drop Leg Refrigerant Temperature | °F | Read | |
| AV | 60 | HEATING LOCAL SP | Local Heating Setpoint | °F | Read | |
| AV | 61 | HEATING ACTIVE SP | Active Heating Setpoint | °F | Read | |
| AV | 62 | HEAT REC HEAD PRESS VLV CMD | Heat Recovery/Head Pressure Control Valve Cmd | % | Read | |
| AV | 63 | INPUT POWER | Input Power | kW | Read | |
| AV | 64 | INPUT KWH | Input Kilowatt Hours | kWh | Read | |
| AV | 65 | HOT GAS BYPASS COMMAND | Hot Gas Bypass Command | % | Read | |
| BV | 12 | COND REF LEVEL CNTRL MODE | Condenser Level Control Valve Mode | Read | 0=Auto, 1=Manual | |
| AV | 66 | ECON SATURATION TEMP ACT SP | Economizer Active Saturation Temperature Setpoint | °F | Read | |
| AV | 67 | ECON SATURATION TEMP | Economizer Saturation Temperature | °F | Read | |
| AV | 68 | ECON MTR CURR OVERRIDE THRESH | Economizer Motor Current Override Threshold | % | Read | |
| AV | 69 | ECON REFRIGERANT LEVEL SP | Economizer Active Level Setpoint | % | Read | |
| BV | 13 | OIL STILL LIQ FEED SOL | Oil Still Liquid Feed Solenoid | Read | 0=Off, 1=On | |
| BV | 14 | MOTOR SPACE HEATER STATUS | Motor Space Heater | Read | 0=Off, 1=On | |
| BV | 15 | DISP UNITS | Display Units | Read | 0=Imperial, 1=SI | |
| AV | 70 | MTR WINDING PH A TEMP | Motor Winding Phase A Temperature | °F | Read | |
| AV | 71 | MTR WINDING PH B TEMP | Motor Winding Phase B Temperature | °F | Read | |
| AV | 72 | MTR WINDING PH C TEMP | Motor Winding Phase C Temperature | °F | Read | |
| AV | 73 | MTR WINDING PH A2 TEMP | Motor Winding Phase A2 Temperature | °F | Read | |
| AV | 74 | MTR WINDING PH B2 TEMP | Motor Winding Phase B2 Temperature | °F | Read | |
| AV | 75 | MTR WINDING PH C2 TEMP | Motor Winding Phase C2 Temperature | °F | Read | |
| AV | 76 | VSD OIL PUMP CMD FREQUENCY | VSD Oil Pump Command Frequency | Hz | Read | |
| AV | 77 | EVAP SMALL TEMP DIFF | Evaporator Small Temp Difference | °F (diff) | Read | |
| AV | 78 | COND SMALL TEMP DIFF | Condenser Small Temp Difference | °F (diff) | Read | |
| AV | 79 | SUBCOOLER EFFECTIVENESS | Subcooler Effectiveness | Read | ||
| AV | 80 | SUBCOOLING TEMP | Subcooling Temperature | °F (diff) | Read | |
| MV | 8 | RUN STOP CTRL SOURCE | Run/Stop Control Source | Read | 0=Local, 1=BAS, 2=Hardwire | |
| AV | 408 | RUN STOP CTRL SOURCE AV | Run/Stop Control Source AV | Read | 0=Local, 1=BAS, 2=Hardwire | |
| MV | 9 | COOL SETP CTRL SOURCE | Cooling Setp Control Source | Read | 0=Local, 1=BAS, 2=0-10 Volts, 3=4-20 mA, 4=PWM | |
| AV | 409 | COOL SETP CTRL SOURCE AV | Cooling Setp Control Source AV | Read | 0=Local, 1=BAS, 2=0-10 Volts, 3=4-20 mA, 4=PWM | |
| MV | 10 | HEAT SETP CTRL SOURCE | Heating Setp Control Source | Read | 0=Local, 1=BAS, 2=0-10 Volts, 3=4-20 mA, 4=PWM | |
| AV | 410 | HEAT SETP CTRL SOURCE AV | Heating Setp Control Source AV | Read | 0=Local, 1=BAS, 2=0-10 Volts, 3=4-20 mA, 4=PWM | |
| MV | 11 | CURR LIM CTRL SOURCE | Current Limit Control Source | Read | 0=Local, 1=BAS, 2=0-10 Volts, 3=4-20 mA, 4=PWM | |
| AV | 411 | CURR LIM CTRL SOURCE AV | Current Limit Control Source AV | Read | 0=Local, 1=BAS, 2=0-10 Volts, 3=4-20 mA, 4=PWM | |
| AV | 81 | SSS PHASE A TEMP | SSS Phase A Temperature | °F | Read | |
| AV | 82 | SSS PHASE B TEMP | SSS Phase B Temperature | °F | Read | |
| AV | 83 | SSS PHASE C TEMP | SSS Phase C Temperature | °F | Read | |
| AV | 84 | L1 INPT CURR PEAK | L1 Input Current Peak | Amps | Read | |
| AV | 85 | L2 INPT CURR PEAK | L2 Input Current Peak | Amps | Read | |
| AV | 86 | L3 INPT CURR PEAK | L3 Input Current Peak | Amps | Read | |
| AV | 87 | INPT KWH PWR METER | Input kWh (Power Meter) | kWh | Read | |
| AV | 88 | COOLG PCT CAP | Cooling Percent Capacity | % | Read | |
| AV | 89 | COOLG CAP TONS | Cooling Capacity Tons | TR | Read | |
| AV | 90 | COOLG PCT PWR | Cooling Percent Power | % | Read | |
| AV | 91 | COOLG EFFCNCY | Cooling Efficiency | kW/Ton | Read | |
| AV | 92 | COOLG COP | Cooling COP | Read | ||
| BV | 16 | HOT WATER CONTROL EN | Hot Water Control Enable | Read | 0=Disabled, 1=Enabled |
No points match these filters.
Object ID lookup: York YKHT (YT3) SC-EQ point IDs by name
AV1REM LEAVING CHL TEMP SPAV2REMOTE INPUT CURRENT SPAV3HOT WATER REMOTE SPAV4REM HEAT COOL MODEBV1REM RUN STOP CMDAV5LEAVING CH LIQ TEMPAV6ENTERING CH LIQ TEMPAV7EVAPORATOR PRESSUREAV8CONDENSER PRESSUREAV9OIL PRESSURE DIFERENTIALAV10ENTERING COND WATER TEMPAV11LEAVING COND WATER TEMPAV12MOTOR CURRENT PCT FLAAV13MOTOR PHASE A CURRENTAV14MOTOR PHASE B CURRENTAV15MOTOR PHASE C CURRENTAV16MOTOR PHASE A VOLTAGEAV17MOTOR PHASE B VOLTAGEAV18MOTOR PHASE C VOLTAGEAV19LEAVING CH LIQ TEMP ACT SPAV20EVAP SATURATION TEMPAV21COND SATURATION TEMPAV22LS DISCHARGE TEMPAV23HS DISCHARGE TEMPAV24OIL SUMP TEMPERATUREAV25COND REFRIGERANT LEVELAV26DELTA P DIV PAV27OPERATING HOURSAV28NUMBER OF STARTSAV29OIL SUMP PRESSUREAV30OIL PUMP PRESSUREBV5COMPR MOTOR STATUSBV6CH LIQ PUMP STATBV7START STOP SWITCH STATUSBV8CH LIQ FLOW SWITCH STATBV9CND FLOW SWITCH STATBV10CND LIQ PUMP STATAV31LS VGD POSAV32HS VGD POSAV33HI WINDING TEMPAV34MOTOR HOUSING TEMPAV35VSD PHASE A CURRAV36VSD PHASE B CURRAV37VSD PHASE C CURRBV11VSD HARMONIC FILTER INSTAV38ECONOMIZER PRESSUREAV39ECON REFRIGERANT LEVELMV1UNIT OPERATION CODEAV401UNIT OPERATION CODE AVMV2UNIT SAFETY FAULT CODEAV402UNIT SAFETY FAULT CODE AVMV3UNIT CYCLING FAULT CODEAV403UNIT CYCLING FAULT CODE AVMV4UNIT WARNING CODEAV404UNIT WARNING CODE AVMV5UNIT CONTROL SOURCEAV405UNIT CONTROL SOURCE AVMV6UNIT MODIFIED RUN CODEAV406UNIT MODIFIED RUN CODE AVMV7UNIT START INHIBIT CODEAV407UNIT START INHIBIT CODE AVAV40PROX SENSOR ACT POSAV41PROX SENSOR REF POSAV42ANTI RECYCLE TIME REMAINAV43VSD OUTPUT VOLTAGEAV44VSD PHS A OUT VOLT RMSAV45VSD PHS B OUT VOLT RMSAV46VSD PHS C OUT VOLT RMSAV47VSD PHASE A OUTPT CURR PEAKAV48VSD PHASE B OUTPT CURR PEAKAV49VSD PHASE C OUTPT CURR PEAKAV50VSD INPUT POWERAV51VSD INPUT KWHAV52VSD DC BUS VOLTAGEAV53VSD OUTPUT FREQUENCYAV54COND LEVEL CTRL VALVE CMDAV55MTR SHAFT END TEMPAV56MTR OP SHAFT END TEMPAV57MTR WINDING AVG TEMPAV58COND REFRIGERANT LEVEL SPAV59DROP LEG REFRIG TEMPAV60HEATING LOCAL SPAV61HEATING ACTIVE SPAV62HEAT REC HEAD PRESS VLV CMDAV63INPUT POWERAV64INPUT KWHAV65HOT GAS BYPASS COMMANDBV12COND REF LEVEL CNTRL MODEAV66ECON SATURATION TEMP ACT SPAV67ECON SATURATION TEMPAV68ECON MTR CURR OVERRIDE THRESHAV69ECON REFRIGERANT LEVEL SPBV13OIL STILL LIQ FEED SOLBV14MOTOR SPACE HEATER STATUSBV15DISP UNITSAV70MTR WINDING PH A TEMPAV71MTR WINDING PH B TEMPAV72MTR WINDING PH C TEMPAV73MTR WINDING PH A2 TEMPAV74MTR WINDING PH B2 TEMPAV75MTR WINDING PH C2 TEMPAV76VSD OIL PUMP CMD FREQUENCYAV77EVAP SMALL TEMP DIFFAV78COND SMALL TEMP DIFFAV79SUBCOOLER EFFECTIVENESSAV80SUBCOOLING TEMPMV8RUN STOP CTRL SOURCEAV408RUN STOP CTRL SOURCE AVMV9COOL SETP CTRL SOURCEAV409COOL SETP CTRL SOURCE AVMV10HEAT SETP CTRL SOURCEAV410HEAT SETP CTRL SOURCE AVMV11CURR LIM CTRL SOURCEAV411CURR LIM CTRL SOURCE AVAV81SSS PHASE A TEMPAV82SSS PHASE B TEMPAV83SSS PHASE C TEMPAV84L1 INPT CURR PEAKAV85L2 INPT CURR PEAKAV86L3 INPT CURR PEAKAV87INPT KWH PWR METERAV88COOLG PCT CAPAV89COOLG CAP TONSAV90COOLG PCT PWRAV91COOLG EFFCNCYAV92COOLG COPBV16HOT WATER CONTROL EN
Integration notes
- Access is inferred: the sheet has no read/write column. The 'Write Data' block (AV 1-4, BV 1) is treated as commandable; everything else as read-only.
- Status-code MVs (MV 1-4, MV 6, MV 7) use the Status Codes tables + 1, as the sheet says to add 1 for BACnet MSV values; the AV copies (AV 401-407) carry the raw code. Codes listed as N/A are left out.
- MVs with their own enum in the points table (control sources MV 5, MV 8-11) are shown as printed, from 0; BACnet multistate values start at 1, so the card may report the printed number + 1. Confirm by discovery.
- Several points apply only with an option: MVSSS starter values, VSD values, SSS input power, drop leg temperature, motor monitoring, heat recovery / hot water control.
- Units shown are the IP units printed on the sheet; the sheet also lists SI units.
- The sheet lists an Internal Fault Code table (SC.14) but no BACnet object uses it.
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 YKHT Centrifugal Heat Pump Chiller, YT3 panel (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 YKHT Centrifugal Heat Pump Chiller, YT3 panel (SC-EQ)
How many BACnet points does the York YKHT Centrifugal Heat Pump Chiller, YT3 panel (SC-EQ) have?
This list has 127 BACnet objects: 103 analog values, 13 binary values, 11 multi-state values. The exact set on a given unit depends on its firmware, installed options and configuration.
Which York YKHT Centrifugal Heat Pump Chiller, YT3 panel (SC-EQ) BACnet points are writable?
5 of the 127 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 YKHT Centrifugal Heat Pump Chiller, YT3 panel (SC-EQ) BACnet documentation?
The source is YT3 YKHT SC-EQ BAS Points List, revision SC-EQ Release 5.12.0.17, 2026-07-29, published free by York at https://docs.johnsoncontrols.com/chillers/api/khub/documents/yo5s9kYw0NJUW_ajAYQYjQ/content.
What are the minimum BACnet points to integrate the York YKHT Centrifugal Heat Pump Chiller, YT3 panel (SC-EQ)?
Start with BV 1 REM RUN STOP CMD (Remote run/stop (1 = run)); AV 4 REM HEAT COOL MODE (Mode: 0 cooling, 1 heating, 2 both); AV 1 REM LEAVING CHL TEMP SP (Remote leaving chilled liquid setpoint); AV 3 HOT WATER REMOTE SP (Remote hot water setpoint); AV 2 REMOTE INPUT CURRENT SP (Remote current limit, %); MV 1 UNIT OPERATION CODE (Operating state (stopped, starting, running)); BV 5 COMPR MOTOR STATUS (Compressor motor running); AV 5 LEAVING CH LIQ TEMP (Leaving chilled liquid temperature); MV 2 UNIT SAFETY FAULT CODE (Safety shutdown code (1 = none)); MV 3 UNIT CYCLING FAULT CODE (Cycling shutdown code (1 = none)).
How do I enable BMS control of the York YKHT Centrifugal Heat Pump Chiller, YT3 panel (SC-EQ)?
BV 1 REM RUN STOP CMD (0 = Stop, 1 = Run) is the BAS run/stop. MV 8 Run/Stop Control Source (Local, BAS, Hardwire) and MV 9-11 (cooling setpoint, heating setpoint and current limit sources) show where each command comes from; they should read BAS for BMS control. The sheet does not say how the sources are selected at the panel.
How do I check these points on the real YKHT Centrifugal Heat Pump Chiller, YT3 panel (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 - 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 - 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: YT3 YKHT SC-EQ BAS Points List · rev. SC-EQ Release 5.12.0.17, 2026-07-29. Object names, instances and units are reproduced as published; descriptions are our own.