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VRF outdoor unit monitoring via BACnet gateway · BACnet points list

CoolAutomation CoolMasterNet Fujitsu AJ*NLAH outdoor unit (PRO) objects BACnet points list

Updated 12 November 2026

Short answer

With PRO functionality, CoolAutomation gateways publish service data from Fujitsu AJ*NLAH outdoor units over BACnet: type, capacity, operation, mode, defrost and oil recovery, compressor, valve, heater and fan states, thermistor temperatures, high and low pressure, compressor drive frequency, inverter temperature, DC voltage and current, fan frequency and EEV positions, plus a second (constant speed) compressor, low-noise, forced-off and capacity-save states (46 objects). Monitoring only.

This page lists 46 BACnet objects for the CoolAutomation CoolMasterNet Fujitsu AJ*NLAH outdoor unit (PRO) objects — 0 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from CoolAutomation’s own free documentation, linked below.

Manufacturer
CoolAutomation
Model
CoolMasterNet Fujitsu AJ*NLAH outdoor unit (PRO) objects
Equipment
VRF outdoor unit monitoring via BACnet gateway
Equipment type
VRF & split air conditioners
BACnet objects
46 (0 writable)
Transport
BACnet IP, BACnet MS/TP
Firmware
Not stated
Default device instance
64
Also known as
Fujitsu VRF BACnet, CoolMasterNet Fujitsu, AJHLNLAH, AJHLNLAHU, AJHLNTAH, AJQLBLH, AJYLNLAH, AJYLNTAH, AOUuRLBV
Brands covered
Fujitsu
Source document
BACnet Integration Guidelines - CoolMaster Product Line, CooLinkNet, CooLinkHub, CooLinkBridge · rev. Rev 1.0.4, 2026-07-06
Download CSV 46 rows Download EDE B.I.G.-EU JSON Manufacturer PDF ↗ Compare with your scan Download Easy BACnet Mobile App Google Play

Reference only, provided as-is: verify against CoolAutomation’s current documentation and the live device before use. Not official CoolAutomation information. Terms of use.

BMS integration notes: CoolAutomation CoolMasterNet Fujitsu AJ*NLAH outdoor unit (PRO) objects

Integration in brief

Use these objects to monitor Fujitsu outdoor equipment only; control stays on the CoolMasterNet indoor-unit objects. Map the outdoor block's VA and trend operation, mode, compressor frequency and pressures.

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.

ObjectNameWhyAccess
BI 258OpOutdoor unit operatingRead
PIV 259MdOperating mode codeRead
BI 262Cmp1Inverter compressor runningRead
BI 260DfrstDefrost activeRead
PIV 294Cmp1FCompressor 1 drive frequency, rpsRead
IV 282TH2Outdoor temperature, °CRead
AI 292HPSHigh pressure, MPaRead
AI 293LPSLow pressure, MPaRead
IV 281TH1Discharge temperature, °CRead

Enable & remote start

BACnet must be enabled on the gateway; these objects belong to its PRO (service data) functionality.

Network setup

Watch out for

CoolAutomation CoolMasterNet Fujitsu AJ*NLAH outdoor unit (PRO) objects 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.

46 of 46 shown
Type
AnalogBinary
Show
CoolAutomation CoolMasterNet Fujitsu AJ*NLAH outdoor unit (PRO) objects BACnet Points List
DescriptionStates
CSV256TypeOutdoor Unit Type NameRead
PIV257CapCapacityHPRead
BImin258OpOperationRead
PIVmin259MdModeRead0=Idling, 1=Cool, 2=Heat, 3=-, 4=Idling, 5=Cool(Main), 6=Heat(Main), 7=-
BImin260DfrstDefrostRead
BI261OiRcvrOil RecoveryRead
BImin262Cmp1Compressor 1 (Inverter type)Read
BI263Cmp2CMP2Read
BI264BHBHRead
BI265HPSW1High pressure sensor switch 1Read
BI266HPSW2HPSW2Read
PIV267LoNoiseLow NoiseRead
BI268FrcdOffForced OffRead
BI269CapSvCapacity SaveRead
BI2704WV14-way valve 1Read
BI271SV1Solenoid valve 1Read
BI272SV2Solenoid valve 2Read
BI273SV3Solenoid valve 3Read
BI274SV4SV4Read
BI275SV5SV5Read
BI276SV6SV6Read
BI277SV7SV7Read
BI278CCH1CCH1Read
BI279CCH2CCH2Read
BI280FnSt1Fan State 1Read
IVmin281TH1Discharge temperature thermistor 1°CRead
IVmin282TH2Outdoor temperature thermistor°CRead
IV283TH3Suction temperature thermistor°CRead
IV284TH4Liquid temperature thermistor 1°CRead
IV285TH5Liquid temperature thermistor 2°CRead
IV286TH6Sub-cool heat exchanger (outlet) thermistor°CRead
IV287TH7Heat exchanger 1 gas thermistor°CRead
IV288TH8Heat exchanger 2 gas thermistor°CRead
IV289TH9Heat exchanger 1 liquid thermistor°CRead
IV290TH10Heat exchanger 2 liquid thermistor°CRead
IV291TH11Compressor 1 temperature thermistor 1°CRead
AImin292HPSHigh pressure sensorMPaRead
AImin293LPSLow pressure sensorMPaRead
PIVmin294Cmp1FCMP1 Drive FrequencyrpsRead
IV295Cmp1TCMP1 Inverter Temperature°CRead
PIV296Cmp1VCMP1 DC VoltageVRead
AI297Cmp1CCMP1 CT CurrentARead
AI298Cmp2CCMP2 (Constant speed) CurrentARead
PIV299FnFreq1Fan Frequency 1rpmRead
PIV300EEV1Electric expansion valve 1plsRead
PIV301EEV2Electric expansion valve 2plsRead
Object ID lookup: CoolAutomation CoolMasterNet Fujitsu AJ*NLAH outdoor unit (PRO) objects point IDs by name

Integration notes

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 CoolMasterNet Fujitsu AJ*NLAH outdoor unit (PRO) objects 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 CoolAutomation CoolMasterNet Fujitsu AJ*NLAH outdoor unit (PRO) objects

How many BACnet points does the CoolAutomation CoolMasterNet Fujitsu AJ*NLAH outdoor unit (PRO) objects have?

This list has 46 BACnet objects: 4 analog inputs, 21 binary inputs, 1 characterstring value, 12 integer values, 8 positive integer values. The exact set on a given unit depends on its firmware, installed options and configuration.

Which CoolAutomation CoolMasterNet Fujitsu AJ*NLAH outdoor unit (PRO) objects BACnet points are writable?

None of the listed objects are marked writable in the source documentation. The source has no read/write column, so this is inferred from object type.

Where is the official CoolAutomation CoolMasterNet Fujitsu AJ*NLAH outdoor unit (PRO) objects BACnet documentation?

The source is BACnet Integration Guidelines - CoolMaster Product Line, CooLinkNet, CooLinkHub, CooLinkBridge, revision Rev 1.0.4, 2026-07-06, published free by CoolAutomation at https://support.coolautomation.com/hc/en-us/article_attachments/38262832368157.

What are the minimum BACnet points to integrate the CoolAutomation CoolMasterNet Fujitsu AJ*NLAH outdoor unit (PRO) objects?

Start with BI 258 Op (Outdoor unit operating); PIV 259 Md (Operating mode code); BI 262 Cmp1 (Inverter compressor running); BI 260 Dfrst (Defrost active); PIV 294 Cmp1F (Compressor 1 drive frequency, rps); IV 282 TH2 (Outdoor temperature, °C); AI 292 HPS (High pressure, MPa); AI 293 LPS (Low pressure, MPa); IV 281 TH1 (Discharge temperature, °C).

How do I enable BMS control of the CoolAutomation CoolMasterNet Fujitsu AJ*NLAH outdoor unit (PRO) objects?

BACnet must be enabled on the gateway; these objects belong to its PRO (service data) functionality.

How do I check these points on the real CoolMasterNet Fujitsu AJ*NLAH outdoor unit (PRO) objects?

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 CoolAutomation BACnet points lists

Source: BACnet Integration Guidelines - CoolMaster Product Line, CooLinkNet, CooLinkHub, CooLinkBridge · rev. Rev 1.0.4, 2026-07-06. Object names, instances and units are reproduced as published; descriptions are our own.