{
 "manufacturer": "York",
 "manufacturer_slug": "york",
 "model": "YT Centrifugal Chiller (SC-EQ)",
 "model_slug": "yt-sc-eq",
 "aliases": [
  "YORK YT",
  "YT chiller",
  "OptiView YT",
  "SC-EQ",
  "SE-SCC1001-1"
 ],
 "equipment_type": "Water-cooled centrifugal chiller (via SC-EQ card)",
 "applies_to": "YORK YT water-cooled centrifugal chillers with OptiView controls, fitted with the SC-EQ communication card (VSD, solid-state or electro-mechanical starters).",
 "summary": "YORK by Johnson Controls YT centrifugal chillers reach a BAS through the SC-EQ communication card, which serves BACnet MS/TP (or Modbus RTU / N2) and replaced the older E-Link gateway. The SC-EQ list has four remote commands (start/stop, leaving chilled liquid setpoint, current limit, VSD fixed-speed select), temperatures, pressures, starter and VSD values, and multistate operation, safety, cycling and warning codes with matching analog copies.",
 "bacnet_transport": [
  "BACnet MS/TP"
 ],
 "firmware": "SC-EQ software 4.2.0.20",
 "default_device_instance": "5000 + MAC address",
 "access_inferred": true,
 "notes": [
  "Access is inferred: the sheet has no read/write column. The remote block (AV 1-2, BV 1, BV 3) is treated as commandable and MV 65001 as writable; everything else as read-only.",
  "Some instances depend on the starter: AV 13-15, AV 35, AV 36, AV 121 and AV 122 carry VSD values on VSD units and solid-state or electro-mechanical starter values otherwise. These are merged into one row each.",
  "Status-code MVs (operation, fault, warning, modified run, start inhibit, internal fault) are the printed code + 1, as the doc's status code tables say; the AV copies (AV 401 and up) carry the raw code. MVs with their own enum in the points table (Units, control sources) are shown as printed, from 0; BACnet multistate values start at 1, so the card may report the printed number + 1. Confirm by discovery.",
  "Units shown are the IP units; with MV 65001 set to SI the card reports °C, kPa and so on.",
  "Operating hours and kWh are also split into low/offset pairs (value = offset x 10,000 + low)."
 ],
 "source": {
  "title": "YT SC-EQ BAS Points List",
  "doc_number": null,
  "revision_date": "Rev 2.5, 2021-12-08",
  "url": "https://docs.johnsoncontrols.com/chillers/api/khub/documents/qySCXKFcGaJK93xZ8jJBmA/content"
 },
 "integration": {
  "summary": "Start and stop it with BV 1 and write the leaving chilled liquid setpoint (AV 1) and current limit (AV 2). Read MV 1 for the operating state, BV 5 for motor run, the leaving water temperature and % FLA, and MV 2/MV 3 for safety and cycling shutdowns.",
  "minimum_points": [
   {
    "ref": "BV 1",
    "name": "REM START STOP CMD",
    "why": "Remote start/stop (1 = start)"
   },
   {
    "ref": "AV 1",
    "name": "REM LEAVING CHL TEMP SP",
    "why": "Remote leaving chilled liquid setpoint"
   },
   {
    "ref": "AV 2",
    "name": "REMOTE CURRENT SP",
    "why": "Remote motor current limit, %"
   },
   {
    "ref": "MV 1",
    "name": "UNIT OPERATION CODE",
    "why": "Operating state (stopped, starting, running)"
   },
   {
    "ref": "BV 5",
    "name": "COMPR MOTOR STATUS",
    "why": "Compressor motor running"
   },
   {
    "ref": "MV 5",
    "name": "UNIT CONTROL SOURCE",
    "why": "Control source; ISN (BAS) for BMS control"
   },
   {
    "ref": "AV 5",
    "name": "LEAVING CH LIQ TEMP",
    "why": "Leaving chilled liquid temperature"
   },
   {
    "ref": "AV 12",
    "name": "MOTOR CURRENT PCT FLA",
    "why": "Motor current, % FLA (load indication)"
   },
   {
    "ref": "MV 2",
    "name": "UNIT SAFETY FAULT CODE",
    "why": "Safety shutdown code (1 = none)"
   },
   {
    "ref": "MV 3",
    "name": "UNIT CYCLING FAULT CODE",
    "why": "Cycling shutdown code (1 = none)"
   }
  ],
  "enable": "BV 1 REM START STOP CMD (0 = Stop, 1 = Start) is the BAS start/stop, and AV 1-2 are the remote setpoints. MV 5 Unit Control Source shows Local, ISN (BAS), Analog, Digital or Modem; check it reads ISN (BAS). The points list has no write-enable point and doesn't say how the source is chosen at the chiller panel.",
  "heartbeat": null,
  "remote_sensors": null,
  "setup": [
   "The BAS connects to the SC-EQ J12 port (RS-485: +, -, COM/REF, SHLD). The card detects BACnet MS/TP, Modbus RTU or N2 and the baud rate by itself; allow up to 120 seconds after power-up.",
   "The MAC address (1-127) is set on DIP switch SW1 (switch 8 unused). Cycle the card's power after changing it.",
   "The device instance defaults to 5000 + the MAC address (MAC 6 gives 5006). To use another number, set Device Instance Mode to Manual and enter the instance with the SC-AP / MAP tool, or write BV 65000 (mode) and AV 65000 (instance ID).",
   "MV 65001 Units sets whether the BAS sees IP or SI values, independent of the chiller display; set it to match the chiller."
  ],
  "gotchas": [
   "The remote (commandable) setpoints read as unreliable until the BAS writes them the first time.",
   "The SC-EQ only exposes the points that apply to the chiller it detects; if it replaces an E-Link, re-discover the device so old non-applicable points don't sit offline.",
   "Starter type changes what several AVs mean (see notes); check the starter before trending AV 13-15, 35 and 36."
  ]
 },
 "points": [
  {
   "type": "AV",
   "instance": 1,
   "name": "REM LEAVING CHL TEMP SP",
   "description": "Remote Leaving Chilled Liquid Setpoint",
   "units": "°F",
   "access": "C",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 2,
   "name": "REMOTE CURRENT SP",
   "description": "Remote Current Limit Setpoint",
   "units": "%",
   "access": "C",
   "states": ""
  },
  {
   "type": "BV",
   "instance": 1,
   "name": "REM START STOP CMD",
   "description": "Remote Start/Stop",
   "units": "",
   "access": "C",
   "states": "0=Stop, 1=Start"
  },
  {
   "type": "BV",
   "instance": 3,
   "name": "VSD FIXED SPEED SELECT",
   "description": "Variable Speed Drive Fixed Speed",
   "units": "",
   "access": "C",
   "states": "0=Auto, 1=Fixed"
  },
  {
   "type": "MV",
   "instance": 65001,
   "name": "Units",
   "description": "Unit system reported by the SC-EQ",
   "units": "",
   "access": "W",
   "states": "0=IP (English), 1=SI (Metric)"
  },
  {
   "type": "AV",
   "instance": 5,
   "name": "LEAVING CH LIQ TEMP",
   "description": "Leaving Chilled Liquid Temperature",
   "units": "°F",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 6,
   "name": "ENTERING CHW TEMP",
   "description": "Return Chilled Liquid Temperature",
   "units": "°F",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 7,
   "name": "EVAPORATOR PRESSURE",
   "description": "Evaporator Pressure",
   "units": "PSIA",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 8,
   "name": "CONDENSER PRESSURE",
   "description": "Condenser Pressure",
   "units": "PSIA",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 9,
   "name": "OIL PRESSURE DIFERENTIAL",
   "description": "Oil Pressure Differential",
   "units": "PSID",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 10,
   "name": "ENTERING COND WATER TEMP",
   "description": "Return Condenser Liquid Temperature",
   "units": "°F",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 11,
   "name": "LEAVING COND WATER TEMP",
   "description": "Leaving Condenser Liquid Temperature",
   "units": "°F",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 12,
   "name": "MOTOR CURRENT PCT FLA",
   "description": "Motor Current Percent FLA",
   "units": "%",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 13,
   "name": "VSD PHASE A MOTOR CURRENT / SSS PHASE A MOTOR CURRENT",
   "description": "Phase A motor current (VSD or solid-state starter)",
   "units": "Amps",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 14,
   "name": "VSD PHASE B MOTOR CURRENT / SSS PHASE B MOTOR CURRENT",
   "description": "Phase B motor current (VSD or solid-state starter)",
   "units": "Amps",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 15,
   "name": "VSD PHASE C MOTOR CURRENT / SSS PHASE C MOTOR CURRENT",
   "description": "Phase C motor current (VSD or solid-state starter)",
   "units": "Amps",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 16,
   "name": "PHASE A_B LINE VOLTS",
   "description": "Solid State Starter Phase A Voltage (SSS only)",
   "units": "Volts",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 17,
   "name": "PHASE B_C LINE VOLTS",
   "description": "Solid State Starter Phase B Voltage (SSS only)",
   "units": "Volts",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 18,
   "name": "PHASE C_A LINE VOLTS",
   "description": "Solid State Starter Phase C Voltage (SSS only)",
   "units": "Volts",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 19,
   "name": "LEAVING CH LIQ TEMP ACT SP",
   "description": "Leaving Chilled Liquid Setpoint - Selected",
   "units": "°F",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 20,
   "name": "MOTOR CURRENT ACTUAL SP",
   "description": "Motor Current Limit Setpoint - Selected",
   "units": "%",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 21,
   "name": "EVAP SATURATION TEMP",
   "description": "Evaporator Saturation Temp",
   "units": "°F",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 22,
   "name": "COND SATURATION TEMP",
   "description": "Condenser Saturation Temp",
   "units": "°F",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 23,
   "name": "DISCHARGE TEMP",
   "description": "Discharge Temperature",
   "units": "°F",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 24,
   "name": "OIL SUMP TEMPERATURE",
   "description": "Oil Sump Temperature",
   "units": "°F",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 25,
   "name": "PURGE PRESSURE",
   "description": "Purge Pressure",
   "units": "PSIA",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 26,
   "name": "ACCUM OPERATING HOURS",
   "description": "Unit Operating Hours",
   "units": "Hr",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 27,
   "name": "ACCUM SYSTEM STARTS",
   "description": "Unit System Starts",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "BV",
   "instance": 5,
   "name": "COMPR MOTOR STATUS",
   "description": "Motor Run Contacts",
   "units": "",
   "access": "R",
   "states": "0=Off, 1=On"
  },
  {
   "type": "BV",
   "instance": 6,
   "name": "VENT LINE SOLENOID",
   "description": "Vent Line Solenoid",
   "units": "",
   "access": "R",
   "states": "0=Off, 1=On"
  },
  {
   "type": "BV",
   "instance": 7,
   "name": "CHW PUMP STAT",
   "description": "Chilled Liquid Pump",
   "units": "",
   "access": "R",
   "states": "0=Off, 1=On"
  },
  {
   "type": "BV",
   "instance": 8,
   "name": "STOP SWITCH STATUS",
   "description": "Panel Stop Switch",
   "units": "",
   "access": "R",
   "states": "0=Start Enabled, 1=Stop"
  },
  {
   "type": "BV",
   "instance": 9,
   "name": "CHW FLOW SWITCH STAT",
   "description": "Chilled Liquid Flow Switch",
   "units": "",
   "access": "R",
   "states": "0=Open, 1=Closed"
  },
  {
   "type": "BV",
   "instance": 17,
   "name": "ACC VALVE SURGE MAP",
   "description": "Adaptive Capacity Control Valid Surge Map (VSD only)",
   "units": "",
   "access": "R",
   "states": "0=False, 1=True"
  },
  {
   "type": "BV",
   "instance": 18,
   "name": "ACC NEW SURGE POINT",
   "description": "Adaptive Capacity Control New Surge Point (VSD only)",
   "units": "",
   "access": "R",
   "states": "0=False, 1=True"
  },
  {
   "type": "BV",
   "instance": 19,
   "name": "VSD COOL PUMP RUN RELAY",
   "description": "Variable Speed Drive Water Pump Relay (VSD only)",
   "units": "",
   "access": "R",
   "states": "0=Off, 1=On"
  },
  {
   "type": "BV",
   "instance": 20,
   "name": "VSD HARMONIC FILTER INST",
   "description": "Harmonic Filter Installed (VSD only)",
   "units": "",
   "access": "R",
   "states": "0=False, 1=True"
  },
  {
   "type": "BV",
   "instance": 21,
   "name": "ACC SURGE DETECTION TYPE",
   "description": "Adaptive Capacity Control Surge Type (VSD only)",
   "units": "",
   "access": "R",
   "states": "0=Delta P/P, 1=Current"
  },
  {
   "type": "MV",
   "instance": 1,
   "name": "UNIT OPERATION CODE",
   "description": "Unit Operation Code",
   "units": "",
   "access": "R",
   "states": "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 - Chiller Unload Before Shutdown, 12=Unit Coastdown"
  },
  {
   "type": "AV",
   "instance": 401,
   "name": "UNIT OPERATION CODE AV",
   "description": "Unit Operation Code AV",
   "units": "",
   "access": "R",
   "states": "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 - Chiller Unload Before Shutdown, 11=Unit Coastdown"
  },
  {
   "type": "MV",
   "instance": 2,
   "name": "UNIT SAFETY FAULT CODE",
   "description": "Unit Safety Fault Code",
   "units": "",
   "access": "R",
   "states": "1=No Abnormal Condition, 2=Evaporator - Low Pressure, 3=Evaporator - Transducer Or Leaving Liquid Probe, 4=Evaporator - Temperature Transducer, 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 Temperature, 12=Oil - Low Differential Pressure, 13=Oil - High Differential Pressure, 22=Control Panel - Power Failure, 24=Motor Or Starter - Current Imbalance, 30=VSD - High Heatsink Temperature, 31=VSD - 105% Motor Current Overload, 32=VSD - High Phase A Inverter Heatsink Temperature, 33=VSD - High Phase B Inverter Heatsink Temperature, 34=VSD - High Phase C Inverter Heatsink Temperature, 35=VSD - High Converter Heatsink Temperature, 36=VSD - Precharge Lockout, 37=Harmonic Filter - High Heatsink Temperature, 38=Harmonic Filter - High Total Demand Distortion, 39=LCSSS - Phase Loss, 40=LCSSS - Current Imbalance, 41=LCSSS - 105% Motor Current Overload, 42=LCSSS - High Current, 43=LCSSS - Open SCR, 44=LCSSS - Shorted Phase A SCR, 45=LCSSS - Shorted Phase B SCR, 46=LCSSS - Shorted Phase C SCR, 47=LCSSS - High Phase A Temperature - Running, 48=LCSSS - High Phase B Temperature - Running, 49=LCSSS - High Phase C temperature - Running, 50=Starter - Invalid Motor Selection, 52=Evaporator - Low Pressure, 53=Evaporator - Low Pressure - Smart Freeze"
  },
  {
   "type": "AV",
   "instance": 402,
   "name": "UNIT SAFETY FAULT CODE AV",
   "description": "Unit Safety Fault Code AV",
   "units": "",
   "access": "R",
   "states": "0=No Abnormal Condition, 1=Evaporator - Low Pressure, 2=Evaporator - Transducer Or Leaving Liquid Probe, 3=Evaporator - Temperature Transducer, 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 Temperature, 11=Oil - Low Differential Pressure, 12=Oil - High Differential Pressure, 21=Control Panel - Power Failure, 23=Motor Or Starter - Current Imbalance, 29=VSD - High Heatsink Temperature, 30=VSD - 105% Motor Current Overload, 31=VSD - High Phase A Inverter Heatsink Temperature, 32=VSD - High Phase B Inverter Heatsink Temperature, 33=VSD - High Phase C Inverter Heatsink Temperature, 34=VSD - High Converter Heatsink Temperature, 35=VSD - Precharge Lockout, 36=Harmonic Filter - High Heatsink Temperature, 37=Harmonic Filter - High Total Demand Distortion, 38=LCSSS - Phase Loss, 39=LCSSS - Current Imbalance, 40=LCSSS - 105% Motor Current Overload, 41=LCSSS - High Current, 42=LCSSS - Open SCR, 43=LCSSS - Shorted Phase A SCR, 44=LCSSS - Shorted Phase B SCR, 45=LCSSS - Shorted Phase C SCR, 46=LCSSS - High Phase A Temperature - Running, 47=LCSSS - High Phase B Temperature - Running, 48=LCSSS - High Phase C temperature - Running, 49=Starter - Invalid Motor Selection, 51=Evaporator - Low Pressure, 52=Evaporator - Low Pressure - Smart Freeze"
  },
  {
   "type": "MV",
   "instance": 3,
   "name": "UNIT CYCLING FAULT CODE",
   "description": "Unit Cycling Fault Code",
   "units": "",
   "access": "R",
   "states": "1=No Abnormal Condition, 2=Multi-Unit Cycling - Contacts Open, 3=System Cycling - Contacts Open, 5=Oil - Low 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 - Contacts Open, 11=Motor Controller - Loss Of Current, 12=Power Fault, 13=Control Panel - Schedule, 14=Starter - Low Supply Line Voltage, 15=Starter - High Supply Line Voltage, 18=VSD Initialization Failure, 19=VSD Shutdown - Requesting Fault Data, 20=VSD - High Phase A Instantaneous Current, 21=VSD - High Phase B Instantaneous Current, 22=VSD - High Phase C Instantaneous Current, 23=VSD - Phase A Gate Driver, 24=VSD - Phase B Gate Driver, 25=VSD - Phase C Gate Driver, 26=VSD - Single Phase Input Power, 27=VSD - High DC Bus Voltage, 28=VSD - Logic Board Power Supply, 29=VSD - Low DC Bus Voltage, 30=VSD - DC Bus Voltage Imbalance, 31=VSD - High Internal Ambient Temperature, 32=VSD - Invalid Current Scale Selection, 33=VSD - Low Phase A Inverter Heatsink Temperature, 34=VSD - Low Phase B Inverter Heatsink Temperature, 35=VSD - Low Phase C Inverter Heatsink Temperature, 36=VSD - Low Converter Heatsink Temperature, 37=VSD - Precharge - DC Bus Voltage Imbalance, 38=VSD - Precharge - Low DC Bus Voltage, 39=VSD - Logic Board Processor, 40=VSD - Run Signal, 41=VSD - Serial Communications, 42=VSD - Stop Contacts Open, 43=Harmonic Filter - Logic Board Or Communications, 44=Harmonic Filter - High DC Bus Voltage, 45=Harmonic Filter - High Phase A Instantaneous Current, 47=Harmonic Filter - High Phase C Instantaneous Current, 48=Harmonic Filter - Phase Locked Loop, 49=Harmonic Filter - Precharge - Low DC Bus Voltage, 50=Harmonic Filter - Low DC Bus Voltage, 51=Harmonic Filter - DC Bus Voltage Imbalance, 52=Harmonic Filter - 110% Input Current Overload, 53=Harmonic Filter - Logic Board Power Supply, 54=Harmonic Filter - Run Signal, 55=Harmonic Filter - DC Current Transformer 1, 56=Harmonic Filter - DC Current Transformer 2, 57=LCSSS Initialization Failure, 58=LCSSS Shutdown - Requesting Fault Data, 59=LCSSS - Low Phase A Heatsink Temperature, 60=LCSSS - Low Phase B Heatsink Temperature, 61=LCSSS - Low Phase C Heatsink Temperature, 62=LCSSS - Phase Locked Loop, 63=LCSSS - Power Fault, 64=LCSSS - High Supply Line Voltage, 65=LCSSS - Low Supply Line Voltage, 66=LCSSS - Invalid Model Selection, 67=LCSSS - Run Signal, 68=LCSSS - Serial Communications, 69=LCSSS - Stop Contacts Open, 71=LCSSS - Logic Board Processor, 73=LCSSS - Power Fail, 74=VSD - Serial Communications, 75=LCSSS - Serial Communications, 76=LCSSS - Phase Loss"
  },
  {
   "type": "AV",
   "instance": 403,
   "name": "UNIT CYCLING FAULT CODE AV",
   "description": "Unit Cycling Fault Code AV",
   "units": "",
   "access": "R",
   "states": "0=No Abnormal Condition, 1=Multi-Unit Cycling - Contacts Open, 2=System Cycling - Contacts Open, 4=Oil - Low 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 - Contacts Open, 10=Motor Controller - Loss Of Current, 11=Power Fault, 12=Control Panel - Schedule, 13=Starter - Low Supply Line Voltage, 14=Starter - High Supply Line Voltage, 17=VSD Initialization Failure, 18=VSD Shutdown - Requesting Fault Data, 19=VSD - High Phase A Instantaneous Current, 20=VSD - High Phase B Instantaneous Current, 21=VSD - High Phase C Instantaneous Current, 22=VSD - Phase A Gate Driver, 23=VSD - Phase B Gate Driver, 24=VSD - Phase C Gate Driver, 25=VSD - Single Phase Input Power, 26=VSD - High DC Bus Voltage, 27=VSD - Logic Board Power Supply, 28=VSD - Low DC Bus Voltage, 29=VSD - DC Bus Voltage Imbalance, 30=VSD - High Internal Ambient Temperature, 31=VSD - Invalid Current Scale Selection, 32=VSD - Low Phase A Inverter Heatsink Temperature, 33=VSD - Low Phase B Inverter Heatsink Temperature, 34=VSD - Low Phase C Inverter Heatsink Temperature, 35=VSD - Low Converter Heatsink Temperature, 36=VSD - Precharge - DC Bus Voltage Imbalance, 37=VSD - Precharge - Low DC Bus Voltage, 38=VSD - Logic Board Processor, 39=VSD - Run Signal, 40=VSD - Serial Communications, 41=VSD - Stop Contacts Open, 42=Harmonic Filter - Logic Board Or Communications, 43=Harmonic Filter - High DC Bus Voltage, 44=Harmonic Filter - High Phase A Instantaneous Current, 46=Harmonic Filter - High Phase C Instantaneous Current, 47=Harmonic Filter - Phase Locked Loop, 48=Harmonic Filter - Precharge - Low DC Bus Voltage, 49=Harmonic Filter - Low DC Bus Voltage, 50=Harmonic Filter - DC Bus Voltage Imbalance, 51=Harmonic Filter - 110% Input Current Overload, 52=Harmonic Filter - Logic Board Power Supply, 53=Harmonic Filter - Run Signal, 54=Harmonic Filter - DC Current Transformer 1, 55=Harmonic Filter - DC Current Transformer 2, 56=LCSSS Initialization Failure, 57=LCSSS Shutdown - Requesting Fault Data, 58=LCSSS - Low Phase A Heatsink Temperature, 59=LCSSS - Low Phase B Heatsink Temperature, 60=LCSSS - Low Phase C Heatsink Temperature, 61=LCSSS - Phase Locked Loop, 62=LCSSS - Power Fault, 63=LCSSS - High Supply Line Voltage, 64=LCSSS - Low Supply Line Voltage, 65=LCSSS - Invalid Model Selection, 66=LCSSS - Run Signal, 67=LCSSS - Serial Communications, 68=LCSSS - Stop Contacts Open, 70=LCSSS - Logic Board Processor, 72=LCSSS - Power Fail, 73=VSD - Serial Communications, 74=LCSSS - Serial Communications, 75=LCSSS - Phase Loss"
  },
  {
   "type": "MV",
   "instance": 4,
   "name": "UNIT WARNING CODE",
   "description": "Unit Warning Code",
   "units": "",
   "access": "R",
   "states": "1=No Abnormal Condition, 2=Real-Time Clock Failure, 3=Default Setpoints Loaded, 4=Evaporator Or Condenser Transducer Error, 5=Evaporator - Low Pressure Limit, 6=Condenser - High Pressure Limit, 11=Purge - High Pressure, 12=Purge - Float Switch Error, 13=Purge - Excess Purge, 15=Motor - High Current Limit, 16=Vanes Uncalibrated, 17=Vanes Uncalibrated - Fixed Speed Operation, 18=Harmonic Filter - Operation Inhibited, 19=Harmonic Filter - Data Loss, 20=Harmonic Filter - Input Frequency Out Of Range, 27=External I/O Board Serial Communications"
  },
  {
   "type": "AV",
   "instance": 404,
   "name": "UNIT WARNING CODE AV",
   "description": "Unit Warning Code AV",
   "units": "",
   "access": "R",
   "states": "0=No Abnormal Condition, 1=Real-Time Clock Failure, 2=Default Setpoints Loaded, 3=Evaporator Or Condenser Transducer Error, 4=Evaporator - Low Pressure Limit, 5=Condenser - High Pressure Limit, 10=Purge - High Pressure, 11=Purge - Float Switch Error, 12=Purge - Excess Purge, 14=Motor - High Current Limit, 15=Vanes Uncalibrated, 16=Vanes Uncalibrated - Fixed Speed Operation, 17=Harmonic Filter - Operation Inhibited, 18=Harmonic Filter - Data Loss, 19=Harmonic Filter - Input Frequency Out Of Range, 26=External I/O Board Serial Communications"
  },
  {
   "type": "MV",
   "instance": 5,
   "name": "UNIT CONTROL SOURCE",
   "description": "Unit Control Source",
   "units": "",
   "access": "R",
   "states": "0=Local, 1=ISN (BAS), 2=Analog, 3=Digital, 4=Modem"
  },
  {
   "type": "AV",
   "instance": 405,
   "name": "UNIT CONTROL SOURCE AV",
   "description": "Unit control source (analog copy)",
   "units": "",
   "access": "R",
   "states": "0=Local, 1=ISN (BAS), 2=Analog, 3=Digital, 4=Modem"
  },
  {
   "type": "AV",
   "instance": 32,
   "name": "VSD ANTI RECYCLE TIME REMAIN",
   "description": "Variable Speed Drive Anti-Recycle Time Remaining (VSD only)",
   "units": "Min",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 33,
   "name": "ACC MAP PRV POS",
   "description": "Adaptive Capacity Control Map PRV Position (VSD only)",
   "units": "%",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 34,
   "name": "VSD OUTPUT VOLTAGE",
   "description": "Variable Speed Drive Output Voltage (VSD only)",
   "units": "Volts",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 35,
   "name": "VSD INPUT KW / SSS ANTI RECYCLE TIME REMAIN",
   "description": "VSD: input power, kW. SSS/EM starter: anti-recycle time, min",
   "units": "kW / Min",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 36,
   "name": "VSD INPUT KWH / PRE ROTATION VANE POS",
   "description": "VSD: input kWh. SSS/EM starter: pre-rotation vane position, %",
   "units": "kWh / %",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 37,
   "name": "VSD DC LINK VOLTAGE",
   "description": "Variable Speed Drive DC Bus Voltage (VSD only)",
   "units": "Volts",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 38,
   "name": "VSD DC LINK CURRENT",
   "description": "Variable Speed Drive Inverter Link Current (VSD only)",
   "units": "Amps",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 39,
   "name": "VSD SURGE COUNT",
   "description": "Adaptive Capacity Control Surge Count (VSD only)",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 40,
   "name": "VSD OUTPUT FREQUENCY",
   "description": "Variable Speed Drive Output Frequency (VSD only)",
   "units": "Hz",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 41,
   "name": "VSD MAX VOLTAGE THD",
   "description": "Harmonic Filter Maximum Voltage Total Harmonic Distortion (VSD only)",
   "units": "%",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 42,
   "name": "VSD MAX CURRENT TDD",
   "description": "Harmonic Filter Maximum Current Total Demand Distortion (VSD only)",
   "units": "%",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 43,
   "name": "FILTER SUPPLY KVA",
   "description": "Harmonic Filter Total Supply KVA (VSD only)",
   "units": "kVA",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 110,
   "name": "VSD INTERNAL AMBIENT TEMP",
   "description": "VSD Internal Ambient Temp (VSD only)",
   "units": "°F",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 111,
   "name": "VSD CONVERTER HSINK TEMP",
   "description": "VSD Converter Heatsink Temp (VSD only)",
   "units": "°F",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 112,
   "name": "VSD PRE ROTATION VANE POS",
   "description": "Variable Speed Drive Pre Rotation Vanes Position (VSD only)",
   "units": "%",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 113,
   "name": "ACC MAP OUTPUT FREQ",
   "description": "ACC Map Output Frequency (VSD only)",
   "units": "Hz",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 114,
   "name": "REFRIGERANT LEVEL SP",
   "description": "Refrigerant Level Setpoint (VSD only)",
   "units": "%",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 115,
   "name": "DROP LEG REFRIG TEMP",
   "description": "Drop Leg Refrigerant Temperature (VSD only)",
   "units": "°F",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 120,
   "name": "INPUT KWH",
   "description": "Input Kilowatt Hours (SSS only)",
   "units": "kWh",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 121,
   "name": "INPUT KWH LO SSS / INPUT KWH LO",
   "description": "Input kWh low part (kWh modulo 10,000)",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 122,
   "name": "INPUT KWH OFFSET SSS / INPUT KWH OFFSET",
   "description": "Input kWh offset part (kWh divided by 10,000)",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 123,
   "name": "OPERATING HOURS LO",
   "description": "Operating hours low part (hours modulo 10,000)",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 124,
   "name": "OPERATING HOURS OFFSET",
   "description": "Operating hours offset part (hours divided by 10,000)",
   "units": "",
   "access": "R",
   "states": ""
  }
 ],
 "page": "https://easybacnet.com/bacnet-points-lists/york/yt-sc-eq",
 "note": "Re-typed from the manufacturer's public documentation (see source). Point availability varies by firmware and options; verify against the live device."
}