{
 "manufacturer": "York",
 "manufacturer_slug": "york",
 "model": "Scroll Chiller / Heat Pump / Condensing Unit - BAS (ISN) E-Link (YorkTalk 2)",
 "model_slug": "scroll-e-link",
 "short_model": "Scroll E-Link",
 "aliases": [
  "YORK scroll chiller",
  "YCWL",
  "YLAE",
  "Scroll BAS",
  "E-Link",
  "eLink",
  "YorkTalk 2",
  "031-02550"
 ],
 "equipment_type": "Scroll chiller / heat pump (via E-Link gateway)",
 "applies_to": "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.",
 "summary": "The E-Link gateway reads the scroll unit board over YorkTalk 2 (4800 baud) and serves BACnet, N2, LON and Modbus objects named by YorkTalk page: remote setpoint, load limit, heat pump mode and start/stop, liquid and refrigerant temperatures and pressures per system, run hours and status codes.",
 "bacnet_transport": [],
 "firmware": null,
 "default_device_instance": null,
 "access_inferred": false,
 "notes": [
  "This is a YorkTalk 2 E-Link sheet; objects are named by YorkTalk page (YT2_S01_P03 and so on), and only populated slots not marked unavailable on every version are listed.",
  "Access follows the sheet's Modbus function note: the remote slots AV 1-4 and BV 1-4 accept writes; the rest are read-only.",
  "Multistate states are shown as printed (from 0); this sheet does not say whether the BACnet value adds 1, so confirm by discovery (read the state text).",
  "Several remote slots carry alternative meanings by unit type (standard, DAT unit, SP unit, heat pump); they are shown joined with \"/\"."
 ],
 "source": {
  "title": "Scroll BAS (ISN) E-Link points list",
  "doc_number": null,
  "revision_date": "2020-02-11",
  "url": "https://docs.johnsoncontrols.com/chillers/api/khub/documents/oBPJz4ijvAYm6msOUI4wyg/content"
 },
 "integration": {
  "summary": "Put the chiller in remote/ISN control at the panel, then start and stop it with the E-Link remote run/stop object and write the remote setpoint and current limit. Read the operating, safety and warning codes, run status and water temperatures.",
  "minimum_points": [
   {
    "ref": "BV 1",
    "name": "YT2_S01_P07",
    "why": "Remote start/stop (1 = run)"
   },
   {
    "ref": "AV 1",
    "name": "YT2_S01_P03",
    "why": "Remote leaving chilled liquid setpoint"
   },
   {
    "ref": "AV 2",
    "name": "YT2_S01_P04",
    "why": "Remote load limit stage"
   },
   {
    "ref": "BV 21",
    "name": "YT2_S01_P52",
    "why": "Must read Remote (1) for BMS control"
   },
   {
    "ref": "MV 1",
    "name": "YT2_S01_P56",
    "why": "System 1 operating code"
   },
   {
    "ref": "AV 5",
    "name": "YT2_S01_P11",
    "why": "Leaving chilled liquid temperature"
   },
   {
    "ref": "AV 6",
    "name": "YT2_S01_P12",
    "why": "Entering chilled liquid temperature"
   },
   {
    "ref": "MV 2",
    "name": "YT2_S01_P57",
    "why": "System 1 fault code"
   },
   {
    "ref": "BV 5",
    "name": "YT2_S01_P36",
    "why": "System 1 alarm (1 = alarm)"
   }
  ],
  "enable": "The E-Link remote slots (AV 1-4, BV 1-4) are the BMS commands; the chiller panel must be set for remote (ISN/BAS) control for them to take effect.",
  "heartbeat": null,
  "remote_sensors": null,
  "setup": [
   "The E-Link gateway talks to the chiller microboard over YorkTalk 2 and serves BACnet, N2, LON and Modbus; BACnet addressing is set on the E-Link.",
   "Check the chiller program version against the sheet's version table; availability codes (S/O/N) are per version."
  ],
  "gotchas": [
   "Points marked optional (O) on the sheet report only on units with that option or program version."
  ]
 },
 "points": [
  {
   "type": "AV",
   "instance": 1,
   "name": "YT2_S01_P03",
   "description": "Remote Setpoint / Sys 1 Remote Setpoint (SP Unit)",
   "units": "°F / psi",
   "access": "W",
   "states": "99=Auto"
  },
  {
   "type": "AV",
   "instance": 2,
   "name": "YT2_S01_P04",
   "description": "Load Limit Stage [0, 1, 2] / Sys 1 Load Limit Stage [0, 1, 2]",
   "units": "",
   "access": "W",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 3,
   "name": "YT2_S01_P05",
   "description": "Heating SP (HP) / cooling range (DAT unit) / Sys 2 SP (SP unit)",
   "units": "°F / psi",
   "access": "W",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 4,
   "name": "YT2_S01_P06",
   "description": "Remote Heatpump Mode (HP or YCWL HP) / Sys 2 Load Limit Stage [0, 1, 2]",
   "units": "",
   "access": "W",
   "states": "0=Pnl, 1=Cool, 2=Heat"
  },
  {
   "type": "BV",
   "instance": 1,
   "name": "YT2_S01_P07",
   "description": "Start/Stop Command / Sys 1 Start/Stop Command",
   "units": "",
   "access": "W",
   "states": ""
  },
  {
   "type": "BV",
   "instance": 2,
   "name": "YT2_S01_P08",
   "description": "Sys 2 Start/Stop Command",
   "units": "",
   "access": "W",
   "states": ""
  },
  {
   "type": "BV",
   "instance": 4,
   "name": "YT2_S01_P10",
   "description": "History Buffer Request",
   "units": "",
   "access": "W",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 5,
   "name": "YT2_S01_P11",
   "description": "Leaving Chiller Liquid Temp",
   "units": "°F",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 6,
   "name": "YT2_S01_P12",
   "description": "Entering Chilled Liquid Temp",
   "units": "°F",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 7,
   "name": "YT2_S01_P13",
   "description": "Leaving Liquid Temp Hot (YCWL)",
   "units": "°F",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 8,
   "name": "YT2_S01_P14",
   "description": "Discharge Air Temp (Cond Unit) / Entering Liquid Temp Hot (YCWL)",
   "units": "°F",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 9,
   "name": "YT2_S01_P15",
   "description": "Sys 1 Suction Temperature (EEV)",
   "units": "°F",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 10,
   "name": "YT2_S01_P16",
   "description": "Ambient Air Temperature",
   "units": "°F",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 11,
   "name": "YT2_S01_P17",
   "description": "Sys 1 Suction Superheat (EEV)",
   "units": "°F",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 12,
   "name": "YT2_S01_P18",
   "description": "Sys 1 Run Time in seconds",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 13,
   "name": "YT2_S01_P19",
   "description": "Sys 1 Suction Pressure",
   "units": "psi",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 14,
   "name": "YT2_S01_P20",
   "description": "Sys 1 Discharge Pressure",
   "units": "psi",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 15,
   "name": "YT2_S01_P21",
   "description": "Sys 1 Suction Temperature (Cond Unit) / Sys 1 Cooler Inlet Refrigerant Temp (R-407c)",
   "units": "°F",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 16,
   "name": "YT2_S01_P22",
   "description": "Sys 1 Defrost Temperature (HP)",
   "units": "°F",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 17,
   "name": "YT2_S01_P23",
   "description": "Sys 1 EEV Output % (EEV)",
   "units": "%",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 18,
   "name": "YT2_S01_P24",
   "description": "Sys 1 Anti-Recycle Timer",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 19,
   "name": "YT2_S01_P25",
   "description": "Anti-Coincident Timer in seconds",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 20,
   "name": "YT2_S01_P26",
   "description": "Sys 2 Suction Temperature (EEV)",
   "units": "°F",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 21,
   "name": "YT2_S01_P27",
   "description": "Sys 2 Run Time in seconds",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 22,
   "name": "YT2_S01_P28",
   "description": "Sys 2 Suction Pressure",
   "units": "psi",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 23,
   "name": "YT2_S01_P29",
   "description": "Sys 2 Discharge Pressure",
   "units": "psi",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 24,
   "name": "YT2_S01_P30",
   "description": "Sys 2 Suction Temperature (Cond Unit) / Sys 2 Cooler Inlet Refrigerant Temp (R-407c)",
   "units": "°F",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 25,
   "name": "YT2_S01_P31",
   "description": "Sys 2 Defrost Temperature (HP)",
   "units": "°F",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 26,
   "name": "YT2_S01_P32",
   "description": "Sys 2 Suction Superheat (EEV)",
   "units": "°F",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 27,
   "name": "YT2_S01_P33",
   "description": "Sys 2 Anti-Recycle Timer",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 28,
   "name": "YT2_S01_P34",
   "description": "Sys 2 EEV Output % (EEV)",
   "units": "%",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 29,
   "name": "YT2_S01_P35",
   "description": "Number of Compressors",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "BV",
   "instance": 5,
   "name": "YT2_S01_P36",
   "description": "Sys 1 Alarm",
   "units": "",
   "access": "R",
   "states": "0=No Alarm, 1=Alarm"
  },
  {
   "type": "BV",
   "instance": 6,
   "name": "YT2_S01_P37",
   "description": "Sys 2 Alarm",
   "units": "",
   "access": "R",
   "states": "0=No Alarm, 1=Alarm"
  },
  {
   "type": "BV",
   "instance": 7,
   "name": "YT2_S01_P38",
   "description": "Evaporator Heater Status",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "BV",
   "instance": 8,
   "name": "YT2_S01_P39",
   "description": "Evaporator Pump Status",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "BV",
   "instance": 9,
   "name": "YT2_S01_P40",
   "description": "Sys 1 Comp 1 Run",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "BV",
   "instance": 10,
   "name": "YT2_S01_P41",
   "description": "Sys 2 Comp 1 Run",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "BV",
   "instance": 11,
   "name": "YT2_S01_P42",
   "description": "Sys 1 Liquid Line Solenoid Valve / Sys 1 Mode Solenoid Valve (HP)",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "BV",
   "instance": 12,
   "name": "YT2_S01_P43",
   "description": "Sys 1 Hot Gas Bypass Valve",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "BV",
   "instance": 13,
   "name": "YT2_S01_P44",
   "description": "Sys 1 Comp 2 Run",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "BV",
   "instance": 14,
   "name": "YT2_S01_P45",
   "description": "Sys 2 Comp 2 Run",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "BV",
   "instance": 15,
   "name": "YT2_S01_P46",
   "description": "Sys 2 Liquid Line Solenoid Valve / Sys 2 Mode Solenoid Valve (HP)",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "BV",
   "instance": 16,
   "name": "YT2_S01_P47",
   "description": "Lead System",
   "units": "",
   "access": "R",
   "states": "0=Sys1, 1=Sys2"
  },
  {
   "type": "BV",
   "instance": 17,
   "name": "YT2_S01_P48",
   "description": "Sys 1 Comp 3 Run",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "BV",
   "instance": 18,
   "name": "YT2_S01_P49",
   "description": "Sys 2 Comp 3 Run",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "BV",
   "instance": 19,
   "name": "YT2_S01_P50",
   "description": "Chilled Liquid Type",
   "units": "",
   "access": "R",
   "states": "0=Water, 1=Glycol"
  },
  {
   "type": "BV",
   "instance": 20,
   "name": "YT2_S01_P51",
   "description": "Ambient Control Mode",
   "units": "",
   "access": "R",
   "states": "0=Std Amb, 1=Low Amb"
  },
  {
   "type": "BV",
   "instance": 21,
   "name": "YT2_S01_P52",
   "description": "Local/Remote Control Mode",
   "units": "",
   "access": "R",
   "states": "0=Local, 1=Remote"
  },
  {
   "type": "BV",
   "instance": 22,
   "name": "YT2_S01_P53",
   "description": "Units",
   "units": "",
   "access": "R",
   "states": "0=Imperial, 1=SI"
  },
  {
   "type": "BV",
   "instance": 23,
   "name": "YT2_S01_P54",
   "description": "Lead/Lag Control Mode",
   "units": "",
   "access": "R",
   "states": "0=Manual, 1=Auto"
  },
  {
   "type": "BV",
   "instance": 24,
   "name": "YT2_S01_P55",
   "description": "Sys 2 Hot Gas Bypass Valve",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "MV",
   "instance": 1,
   "name": "YT2_S01_P56",
   "description": "Sys 1 Operational Code",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "MV",
   "instance": 2,
   "name": "YT2_S01_P57",
   "description": "Sys 1 Fault Code",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "MV",
   "instance": 3,
   "name": "YT2_S01_P58",
   "description": "Sys 2 Operational Code",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "MV",
   "instance": 4,
   "name": "YT2_S01_P59",
   "description": "Sys 2 Fault Code",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "MV",
   "instance": 6,
   "name": "YT2_S01_P61",
   "description": "Sys 1 Condenser Fan Stage",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "MV",
   "instance": 8,
   "name": "YT2_S01_P63",
   "description": "Sys 2 Condenser Fan Stage",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "MV",
   "instance": 10,
   "name": "YT2_S01_P65",
   "description": "Unit Control Mode",
   "units": "",
   "access": "R",
   "states": "0=LW, 1=RW, 2=DA, 3=SP, 4=CL, 5=HT"
  },
  {
   "type": "AV",
   "instance": 30,
   "name": "YT2_S01_P66",
   "description": "Anti-Recycle Time Programmed",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 31,
   "name": "YT2_S01_P67",
   "description": "Leaving Chilled Liquid Temp Cutout",
   "units": "°F",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 32,
   "name": "YT2_S01_P68",
   "description": "Low Ambient Temp Cutout",
   "units": "°F",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 33,
   "name": "YT2_S01_P69",
   "description": "Low Suction Pressure Cutout Heating (HP)",
   "units": "psi",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 34,
   "name": "YT2_S01_P70",
   "description": "Low Suction Pressure Cutout Cooling",
   "units": "psi",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 35,
   "name": "YT2_S01_P71",
   "description": "High Discharge Pressure Cutout",
   "units": "psi",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 36,
   "name": "YT2_S01_P72",
   "description": "Remote Setpoint",
   "units": "°F",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 37,
   "name": "YT2_S01_P73",
   "description": "Cooling Range",
   "units": "°F",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 38,
   "name": "YT2_S01_P74",
   "description": "Remote Setpoint 2 (SP) / Remote Heating Setpoint (HP and YCWL HP)",
   "units": "psi / °F",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 39,
   "name": "YT2_S01_P75",
   "description": "Cooling Range 2 (SP) / Heating Range (HP and YCWL HP)",
   "units": "psi / °F",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 40,
   "name": "YT2_S01_P76",
   "description": "Sys 1 Discharge Temperature (EEV)",
   "units": "°F",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 41,
   "name": "YT2_S01_P77",
   "description": "Sys 1 Discharge Superheat (EEV)",
   "units": "°F",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 42,
   "name": "YT2_S01_P78",
   "description": "Sys 2 Discharge Temperature (EEV)",
   "units": "°F",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 43,
   "name": "YT2_S01_P79",
   "description": "Sys 2 Discharge Superheat (EEV)",
   "units": "°F",
   "access": "R",
   "states": ""
  },
  {
   "type": "BV",
   "instance": 25,
   "name": "YT2_S01_P80",
   "description": "Bivalent Heat Step (YLAE HP) / Compressor Heater (R-410a/R-454B chillers, YCWL chillers)",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "BV",
   "instance": 29,
   "name": "YT2_S01_P84",
   "description": "SCC Auto Detect Available",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 116,
   "name": "YT2_S02_P18",
   "description": "Sys 1 Comp 1 Run Hours",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 117,
   "name": "YT2_S02_P19",
   "description": "Sys 1 Comp 2 Run Hours",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 118,
   "name": "YT2_S02_P20",
   "description": "Sys 1 Comp 3 Run Hours",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 125,
   "name": "YT2_S02_P27",
   "description": "Sys 2 Comp 1 Run Hours",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 126,
   "name": "YT2_S02_P28",
   "description": "Sys 2 Comp 2 Run Hours",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 127,
   "name": "YT2_S02_P29",
   "description": "Sys 2 Comp 3 Run Hours",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "BV",
   "instance": 105,
   "name": "YT2_S02_P36",
   "description": "Option Indicator",
   "units": "",
   "access": "R",
   "states": "0=Disabled, 1=Enabled"
  },
  {
   "type": "BV",
   "instance": 116,
   "name": "YT2_S02_P47",
   "description": "Expansion Valve Type",
   "units": "",
   "access": "R",
   "states": "0=TXV, 1=EEV"
  },
  {
   "type": "BV",
   "instance": 117,
   "name": "YT2_S02_P48",
   "description": "YCWL Mode",
   "units": "",
   "access": "R",
   "states": "0=Chiller, 1=Heatpump"
  },
  {
   "type": "BV",
   "instance": 119,
   "name": "YT2_S02_P50",
   "description": "SCC Auto Detect Digit 1",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "BV",
   "instance": 120,
   "name": "YT2_S02_P51",
   "description": "SCC Auto Detect Digit 2",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "BV",
   "instance": 121,
   "name": "YT2_S02_P52",
   "description": "SCC Auto Detect Digit 3",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "BV",
   "instance": 122,
   "name": "YT2_S02_P53",
   "description": "SCC Auto Detect Digit 4",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "BV",
   "instance": 123,
   "name": "YT2_S02_P54",
   "description": "SCC Auto Detect Digit 5",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "BV",
   "instance": 124,
   "name": "YT2_S02_P55",
   "description": "SCC Auto Detect Digit 6",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "MV",
   "instance": 101,
   "name": "YT2_S02_P56",
   "description": "Refrigerant",
   "units": "",
   "access": "R",
   "states": "0=R-22, 1=R-407c, 2=R-410a, 3=R-454B"
  },
  {
   "type": "BV",
   "instance": 129,
   "name": "YT2_S02_P84",
   "description": "Units",
   "units": "",
   "access": "R",
   "states": "0=Imperial, 1=Metric"
  }
 ],
 "page": "https://easybacnet.com/bacnet-points-lists/york/scroll-e-link",
 "note": "Provided as-is. Point availability varies by firmware and options; verify against the live device.",
 "disclaimer": "DISCLAIMER: reference only, provided AS IS with no warranty. May contain errors or be out of date. You must verify every point against the manufacturer's current documentation and the live device before use. easybacnet.com accepts no liability for its use and is not affiliated with the manufacturer. Terms: https://easybacnet.com/terms#content"
}