{
 "manufacturer": "CoolAutomation",
 "manufacturer_slug": "coolautomation",
 "model": "CoolMasterNet Daikin VRV outdoor unit (PRO) objects - VRV-4W3-WATER (RWEYQ8-14T9Y1B)",
 "model_slug": "coolmasternet-daikin-vrv-outdoor-vrv-4w3-water",
 "aliases": [
  "Daikin VRV W BACnet",
  "CoolMasterNet Daikin",
  "Daikin water cooled VRV BACnet",
  "VRV-4W3-WATER",
  "RWEYQ8-14T9Y1B"
 ],
 "equipment_type": "VRF water-cooled outdoor unit monitoring via BACnet gateway",
 "applies_to": "Daikin water-cooled VRV units VRV-4W3-WATER (RWEYQ8-14T9Y1B) read through a CoolAutomation gateway with PRO functionality.",
 "summary": "With PRO functionality, CoolAutomation gateways publish service data from each Daikin VRV-4W3-WATER (RWEYQ8-14T9Y1B) water-cooled outdoor unit over BACnet: AirNet address, HP, ambient, evaporating, condensing, discharge, accumulator, receiver and fin temperatures, inverter speed and current, expansion valve positions, plate heat exchanger water and refrigerant temperatures, water flow control, compressor, heater, valve, pump and cooling-fan states and retry and stepping-down flags (51 objects). Monitoring only.",
 "bacnet_transport": [
  "BACnet IP",
  "BACnet MS/TP"
 ],
 "firmware": null,
 "default_device_instance": 64,
 "access_inferred": true,
 "notes": [
  "Instance = VA x 256 + index (object identifier bits 21-8 = VA, 7-0 = index). Points shown for VA 1; the guide does not explain how outdoor units receive their VA.",
  "Access set to read-only: these are measured service values, although the guide's type table lists PIV as read/write.",
  "Object names are the guide's short names; descriptions are the guide's object descriptions with the bracketed unit moved to units.",
  "Table printed on page 46 of the guide (section 3.2.1.3).",
  "The guide's VRV-4W3-WATER system table is close (0.83 overlap) to site list coolmasternet-daikin-vrv-system-vrvm-reyq8-48m and is not included here."
 ],
 "source": {
  "title": "BACnet Integration Guidelines - CoolMaster Product Line, CooLinkNet, CooLinkHub, CooLinkBridge",
  "doc_number": null,
  "revision_date": "Rev 1.0.4, 2026-07-06",
  "url": "https://support.coolautomation.com/hc/en-us/article_attachments/38262832368157"
 },
 "integration": {
  "summary": "Use these objects to monitor Daikin outdoor equipment only; control stays on the CoolMasterNet indoor-unit objects. Map the block's VA and trend operating states, temperatures, compressor data and the error state.",
  "minimum_points": [
   {
    "ref": "BI 270",
    "name": "Comp1Inv",
    "why": "Inverter compressor running"
   },
   {
    "ref": "BI 288",
    "name": "Pump",
    "why": "Pump output (Y2M)"
   },
   {
    "ref": "PIV 261",
    "name": "InvRotAmnt",
    "why": "Inverter speed, rps"
   },
   {
    "ref": "IV 302",
    "name": "H20InPHET",
    "why": "Water temperature into PHE, °C"
   },
   {
    "ref": "IV 303",
    "name": "H20OutPHET",
    "why": "Water temperature out of PHE, °C"
   },
   {
    "ref": "IV 259",
    "name": "EvT",
    "why": "Evaporating temperature, °C"
   },
   {
    "ref": "IV 260",
    "name": "CndT",
    "why": "Condensing temperature, °C"
   },
   {
    "ref": "PIV 269",
    "name": "InvCur",
    "why": "Inverter current, A"
   },
   {
    "ref": "BI 274",
    "name": "ErrState",
    "why": "Unit error state"
   }
  ],
  "enable": "BACnet must be enabled on the gateway; these objects belong to its PRO (service data) functionality.",
  "heartbeat": null,
  "remote_sensors": null,
  "setup": [
   "BACnet MS/TP: activate on line L3 with 'line type L3 BAC' (L4-L7 also possible on the CoolMaster product line); default frame 9600 8N1, change with 'line baud L3 <rate>_8N1'; MAC (TS) default 0x40 = 64, change with 'line myid L3 <hex>'. Reboot after each change.",
   "BACnet IP: enable with 'bacnet IP enable'; UDP port 47808 by default ('bacnet port <n>'). The server starts only once Ethernet is up with an IP address.",
   "Default device instance 64 (0x40); change with 'bacnet instance <n>'."
  ],
  "gotchas": [
   "The guide does not document how VAs are assigned to outdoor units; confirm instances with a BACnet discovery."
  ]
 },
 "covers_brands": [
  "Daikin"
 ],
 "points": [
  {
   "type": "PIV",
   "instance": 256,
   "name": "AirNet",
   "description": "AirNet Addr.",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "PIV",
   "instance": 257,
   "name": "HP",
   "description": "HP",
   "units": "hp",
   "access": "R",
   "states": ""
  },
  {
   "type": "IV",
   "instance": 258,
   "name": "AmbT",
   "description": "Ambient temperature",
   "units": "°C",
   "access": "R",
   "states": ""
  },
  {
   "type": "IV",
   "instance": 259,
   "name": "EvT",
   "description": "Evaporating Temperature",
   "units": "°C",
   "access": "R",
   "states": ""
  },
  {
   "type": "IV",
   "instance": 260,
   "name": "CndT",
   "description": "Condensing Temperature",
   "units": "°C",
   "access": "R",
   "states": ""
  },
  {
   "type": "PIV",
   "instance": 261,
   "name": "InvRotAmnt",
   "description": "Inverter Rotation Amount",
   "units": "rps",
   "access": "R",
   "states": ""
  },
  {
   "type": "PIV",
   "instance": 262,
   "name": "EVMnLiq",
   "description": "Expansion valve main liquid",
   "units": "pls",
   "access": "R",
   "states": ""
  },
  {
   "type": "PIV",
   "instance": 263,
   "name": "EVSc",
   "description": "Expansion valve sub-cool",
   "units": "pls",
   "access": "R",
   "states": ""
  },
  {
   "type": "PIV",
   "instance": 264,
   "name": "EVPrg",
   "description": "Expansion valve purge",
   "units": "pls",
   "access": "R",
   "states": ""
  },
  {
   "type": "PIV",
   "instance": 265,
   "name": "DschTInv",
   "description": "Disch. temp.(INV)",
   "units": "°C",
   "access": "R",
   "states": ""
  },
  {
   "type": "IV",
   "instance": 266,
   "name": "AccInltT",
   "description": "Accumulator Inlet Temp VRV3",
   "units": "°C",
   "access": "R",
   "states": ""
  },
  {
   "type": "IV",
   "instance": 267,
   "name": "RcvrLiqT",
   "description": "Receiver Liquid Temp.",
   "units": "°C",
   "access": "R",
   "states": ""
  },
  {
   "type": "PIV",
   "instance": 268,
   "name": "InvFinT",
   "description": "Inverter fin temp.",
   "units": "°C",
   "access": "R",
   "states": ""
  },
  {
   "type": "PIV",
   "instance": 269,
   "name": "InvCur",
   "description": "Inverter current",
   "units": "A",
   "access": "R",
   "states": ""
  },
  {
   "type": "BI",
   "instance": 270,
   "name": "Comp1Inv",
   "description": "Compressor1(INV)",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "BI",
   "instance": 271,
   "name": "OiRtrn",
   "description": "Oil return",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "BI",
   "instance": 272,
   "name": "CcH1",
   "description": "CH1:Crankcase Heater",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "BI",
   "instance": 273,
   "name": "ResrtStby",
   "description": "Restart stand-by",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "BI",
   "instance": 274,
   "name": "ErrState",
   "description": "Unit Error stat",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "BI",
   "instance": 275,
   "name": "HiPRtry",
   "description": "High pressure retry",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "BI",
   "instance": 276,
   "name": "LoPRtry",
   "description": "Low pressure retry",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "BI",
   "instance": 277,
   "name": "DschPipRtry",
   "description": "Disch. pipe retry",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "BI",
   "instance": 278,
   "name": "4WayVlvDualP",
   "description": "4 way valve dual pressure",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "BI",
   "instance": 279,
   "name": "4WayVlvPHE",
   "description": "4 way valve PHE",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "BI",
   "instance": 280,
   "name": "HotGasLiqInjct",
   "description": "Hot gas liquid injection",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "BI",
   "instance": 281,
   "name": "HiPStpDnCtl",
   "description": "H.P. stepping down cntl",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "BI",
   "instance": 282,
   "name": "LoPStpDnCtl",
   "description": "L.P. stepping down cntl",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "BI",
   "instance": 283,
   "name": "DmndStpDnCtl",
   "description": "Demand stepping down cntl",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "BI",
   "instance": 284,
   "name": "InvDschStpDnCtl",
   "description": "INV Disch. stepping down cntl",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "BI",
   "instance": 285,
   "name": "InvOCStpDnCtl",
   "description": "INV OC stepping down cntl",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "BI",
   "instance": 286,
   "name": "InvFinStpDnCtl",
   "description": "INV Fin stepping down cntl",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "BI",
   "instance": 287,
   "name": "InvStby",
   "description": "INV stand-by",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "BI",
   "instance": 288,
   "name": "Pump",
   "description": "Y2M:Pump",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "BI",
   "instance": 289,
   "name": "InvCoolFan",
   "description": "M1F:INV_cool_fan",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "BI",
   "instance": 290,
   "name": "StrtupCtl",
   "description": "Startup control",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "BI",
   "instance": 291,
   "name": "OiRtrnAcc",
   "description": "Oil return accumulator",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "BI",
   "instance": 292,
   "name": "GasScPrg",
   "description": "Gas SC and purge",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "BI",
   "instance": 293,
   "name": "MainLiq",
   "description": "Main liquid",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "BI",
   "instance": 294,
   "name": "OiRtrnLiqPHE",
   "description": "Liquid oil return PHE",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "BI",
   "instance": 295,
   "name": "OiRtrnHotGas",
   "description": "Hot gas oil return",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "BI",
   "instance": 296,
   "name": "LiqInvCool",
   "description": "Liquid inverter cooling",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "IV",
   "instance": 297,
   "name": "InvGasOutltCoolT",
   "description": "Gas outlet inverter cooling temp",
   "units": "°C",
   "access": "R",
   "states": ""
  },
  {
   "type": "IV",
   "instance": 298,
   "name": "GasH20PHET",
   "description": "Gas PHE H20 temp",
   "units": "°C",
   "access": "R",
   "states": ""
  },
  {
   "type": "IV",
   "instance": 299,
   "name": "GasOutltScPrgT",
   "description": "Gas outlet SC and purge temp",
   "units": "°C",
   "access": "R",
   "states": ""
  },
  {
   "type": "IV",
   "instance": 300,
   "name": "LiqH20PHET",
   "description": "Liquid PHE H20 temp",
   "units": "°C",
   "access": "R",
   "states": ""
  },
  {
   "type": "IV",
   "instance": 301,
   "name": "LiqStpVlvT",
   "description": "Liquid stop valve temp",
   "units": "°C",
   "access": "R",
   "states": ""
  },
  {
   "type": "IV",
   "instance": 302,
   "name": "H20InPHET",
   "description": "H20 in PHE temp",
   "units": "°C",
   "access": "R",
   "states": ""
  },
  {
   "type": "IV",
   "instance": 303,
   "name": "H20OutPHET",
   "description": "H20 out PHE temp",
   "units": "°C",
   "access": "R",
   "states": ""
  },
  {
   "type": "IV",
   "instance": 304,
   "name": "LiqEvtScPHET",
   "description": "Liquid EVT SC PHE temp",
   "units": "°C",
   "access": "R",
   "states": ""
  },
  {
   "type": "IV",
   "instance": 305,
   "name": "InvBodyT",
   "description": "Body compressor temp",
   "units": "°C",
   "access": "R",
   "states": ""
  },
  {
   "type": "IV",
   "instance": 306,
   "name": "WtrFlowCtl",
   "description": "Water flow control",
   "units": "%",
   "access": "R",
   "states": ""
  }
 ],
 "page": "https://easybacnet.com/bacnet-points-lists/coolautomation/coolmasternet-daikin-vrv-outdoor-vrv-4w3-water",
 "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"
}