{
 "manufacturer": "CoolAutomation",
 "manufacturer_slug": "coolautomation",
 "model": "CoolMasterNet Midea CR-HR master outdoor unit (PRO) objects",
 "model_slug": "coolmasternet-midea-cr-hr-master-outdoor",
 "aliases": [
  "Midea CR-HR VRF BACnet",
  "Midea heat recovery VRF BACnet",
  "CoolMasterNet Midea",
  "CR-HR Master"
 ],
 "equipment_type": "VRF outdoor unit monitoring via BACnet gateway",
 "applies_to": "Midea VRF heat recovery outdoor units of the CR-HR type (master unit) read through a CoolAutomation gateway with PRO functionality.",
 "summary": "With PRO functionality, CoolAutomation gateways publish service data from Midea CR-HR master outdoor units over BACnet: mode, preheat, oil return and defrost states, refrigerant shortage and mode change signals, fan data, high and low pressure, temperatures, compressor frequencies and currents, valve states, on/off, night silent, error code, demand and heat exchanger step (50 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.",
  "A separate CR-HR Slave table (34 objects) covers slave outdoor units.",
  "State meanings for coded values (mode, status and similar) are in the guide's PRO Enumerated Parameters tables for this brand and are not repeated 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 Midea outdoor equipment only; control stays on the CoolMasterNet indoor-unit objects. Map the master outdoor unit's VA and trend pressures, compressor frequency and error code.",
  "minimum_points": [
   {
    "ref": "PIV 300",
    "name": "OnOff",
    "why": "Outdoor unit on/off state"
   },
   {
    "ref": "PIV 257",
    "name": "Md",
    "why": "Operating mode code"
   },
   {
    "ref": "PIV 289",
    "name": "INV1",
    "why": "Compressor 1 speed, rps"
   },
   {
    "ref": "AI 278",
    "name": "T4",
    "why": "Outdoor ambient temperature, °C"
   },
   {
    "ref": "AI 276",
    "name": "HiPrs",
    "why": "High pressure, MPa"
   },
   {
    "ref": "AI 277",
    "name": "LoPrs",
    "why": "Low pressure, MPa"
   },
   {
    "ref": "CSV 302",
    "name": "Err",
    "why": "Error code"
   }
  ],
  "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": [
  "Midea"
 ],
 "points": [
  {
   "type": "CSV",
   "instance": 256,
   "name": "Type",
   "description": "Outdoor Unit Type Name",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "PIV",
   "instance": 257,
   "name": "Md",
   "description": "Mode",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "BI",
   "instance": 258,
   "name": "PreHt",
   "description": "Preheat",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "PIV",
   "instance": 259,
   "name": "OiRet",
   "description": "Oil Return",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "PIV",
   "instance": 260,
   "name": "Dfrst",
   "description": "Defrosting",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "PIV",
   "instance": 261,
   "name": "ShtRefSig",
   "description": "Short of refrigerant signal",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "PIV",
   "instance": 262,
   "name": "OvrCon",
   "description": "Over connected",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "AI",
   "instance": 263,
   "name": "SysT4",
   "description": "System T4",
   "units": "°C",
   "access": "R",
   "states": ""
  },
  {
   "type": "PIV",
   "instance": 264,
   "name": "MinDSH",
   "description": "Min.DSH",
   "units": "°C",
   "access": "R",
   "states": ""
  },
  {
   "type": "PIV",
   "instance": 265,
   "name": "PrtChk",
   "description": "Port check",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "PIV",
   "instance": 266,
   "name": "FanStc",
   "description": "Fan static",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "PIV",
   "instance": 267,
   "name": "SlntSt",
   "description": "Silent State",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "PIV",
   "instance": 268,
   "name": "MdChngSig",
   "description": "Mode change signal",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "PIV",
   "instance": 269,
   "name": "PI",
   "description": "PI",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "PIV",
   "instance": 270,
   "name": "FF",
   "description": "FF",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "IV",
   "instance": 271,
   "name": "Tcs",
   "description": "Tcs",
   "units": "°C",
   "access": "R",
   "states": ""
  },
  {
   "type": "AI",
   "instance": 272,
   "name": "Tes",
   "description": "Tes",
   "units": "°C",
   "access": "R",
   "states": ""
  },
  {
   "type": "PIV",
   "instance": 273,
   "name": "Ton",
   "description": "Ton",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "PIV",
   "instance": 274,
   "name": "Fan1",
   "description": "Fan1",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "PIV",
   "instance": 275,
   "name": "Fan2",
   "description": "Fan2",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "AI",
   "instance": 276,
   "name": "HiPrs",
   "description": "High pressure",
   "units": "MPa",
   "access": "R",
   "states": ""
  },
  {
   "type": "AI",
   "instance": 277,
   "name": "LoPrs",
   "description": "Low pressure",
   "units": "MPa",
   "access": "R",
   "states": ""
  },
  {
   "type": "AI",
   "instance": 278,
   "name": "T4",
   "description": "T4 (outdoor ambient temperature)",
   "units": "°C",
   "access": "R",
   "states": ""
  },
  {
   "type": "AI",
   "instance": 279,
   "name": "T3A",
   "description": "T3A",
   "units": "°C",
   "access": "R",
   "states": ""
  },
  {
   "type": "AI",
   "instance": 280,
   "name": "T3C",
   "description": "T3C",
   "units": "°C",
   "access": "R",
   "states": ""
  },
  {
   "type": "IV",
   "instance": 281,
   "name": "Tf",
   "description": "Tf",
   "units": "°C",
   "access": "R",
   "states": ""
  },
  {
   "type": "IV",
   "instance": 282,
   "name": "Tc",
   "description": "Tc",
   "units": "°C",
   "access": "R",
   "states": ""
  },
  {
   "type": "AI",
   "instance": 283,
   "name": "Te",
   "description": "Te",
   "units": "°C",
   "access": "R",
   "states": ""
  },
  {
   "type": "IV",
   "instance": 284,
   "name": "T71",
   "description": "T71",
   "units": "°C",
   "access": "R",
   "states": ""
  },
  {
   "type": "IV",
   "instance": 285,
   "name": "T72",
   "description": "T72",
   "units": "°C",
   "access": "R",
   "states": ""
  },
  {
   "type": "AI",
   "instance": 286,
   "name": "T5",
   "description": "T5",
   "units": "°C",
   "access": "R",
   "states": ""
  },
  {
   "type": "AI",
   "instance": 287,
   "name": "T6",
   "description": "T6",
   "units": "°C",
   "access": "R",
   "states": ""
  },
  {
   "type": "AI",
   "instance": 288,
   "name": "T7",
   "description": "T7",
   "units": "°C",
   "access": "R",
   "states": ""
  },
  {
   "type": "PIV",
   "instance": 289,
   "name": "INV1",
   "description": "INV1 (compressor 1 frequency)",
   "units": "rps",
   "access": "R",
   "states": ""
  },
  {
   "type": "PIV",
   "instance": 290,
   "name": "INV2",
   "description": "INV2 (compressor 2 frequency)",
   "units": "rps",
   "access": "R",
   "states": ""
  },
  {
   "type": "PIV",
   "instance": 291,
   "name": "CUR1",
   "description": "CUR1 (current 1)",
   "units": "A",
   "access": "R",
   "states": ""
  },
  {
   "type": "PIV",
   "instance": 292,
   "name": "CUR2",
   "description": "CUR2 (current 2)",
   "units": "A",
   "access": "R",
   "states": ""
  },
  {
   "type": "PIV",
   "instance": 293,
   "name": "CRANK1",
   "description": "CRANK1",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "PIV",
   "instance": 294,
   "name": "CRANK2",
   "description": "CRANK2",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "PIV",
   "instance": 295,
   "name": "SV4",
   "description": "SV4",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "PIV",
   "instance": 296,
   "name": "SV5",
   "description": "SV5",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "PIV",
   "instance": 297,
   "name": "SV6",
   "description": "SV6",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "PIV",
   "instance": 298,
   "name": "SV7",
   "description": "SV7",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "PIV",
   "instance": 299,
   "name": "ST1",
   "description": "ST1",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "PIV",
   "instance": 300,
   "name": "OnOff",
   "description": "On/Off",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "PIV",
   "instance": 301,
   "name": "NgtSlnt",
   "description": "Night Silent",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "CSV",
   "instance": 302,
   "name": "Err",
   "description": "Error Code",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "PIV",
   "instance": 303,
   "name": "Dmnd",
   "description": "Demand",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "PIV",
   "instance": 304,
   "name": "InvQty",
   "description": "INV Qty",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "PIV",
   "instance": 305,
   "name": "HexStp",
   "description": "HEXStep",
   "units": "",
   "access": "R",
   "states": ""
  }
 ],
 "page": "https://easybacnet.com/bacnet-points-lists/coolautomation/coolmasternet-midea-cr-hr-master-outdoor",
 "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"
}