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VRF water-cooled outdoor unit monitoring via BACnet gateway · BACnet points list

CoolAutomation CoolMasterNet Daikin VRV outdoor unit (PRO) objects - VRV-4W3-WATER (RWEYQ8-14T9Y1B) BACnet points list

Updated 12 November 2026

Short answer

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.

This page lists 51 BACnet objects for the CoolAutomation CoolMasterNet Daikin VRV outdoor unit (PRO) objects - VRV-4W3-WATER (RWEYQ8-14T9Y1B) — 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 Daikin VRV outdoor unit (PRO) objects - VRV-4W3-WATER (RWEYQ8-14T9Y1B)
Equipment
VRF water-cooled outdoor unit monitoring via BACnet gateway
Equipment type
VRF & split air conditioners
BACnet objects
51 (0 writable)
Transport
BACnet IP, BACnet MS/TP
Firmware
Not stated
Default device instance
64
Also known as
Daikin VRV W BACnet, CoolMasterNet Daikin, Daikin water cooled VRV BACnet, VRV-4W3-WATER, RWEYQ8-14T9Y1B
Brands covered
Daikin
Source document
BACnet Integration Guidelines - CoolMaster Product Line, CooLinkNet, CooLinkHub, CooLinkBridge · rev. Rev 1.0.4, 2026-07-06
Download CSV 51 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 Daikin VRV outdoor unit (PRO) objects - VRV-4W3-WATER (RWEYQ8-14T9Y1B)

Integration in brief

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 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 270Comp1InvInverter compressor runningRead
BI 288PumpPump output (Y2M)Read
PIV 261InvRotAmntInverter speed, rpsRead
IV 302H20InPHETWater temperature into PHE, °CRead
IV 303H20OutPHETWater temperature out of PHE, °CRead
IV 259EvTEvaporating temperature, °CRead
IV 260CndTCondensing temperature, °CRead
PIV 269InvCurInverter current, ARead
BI 274ErrStateUnit error stateRead

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 Daikin VRV outdoor unit (PRO) objects - VRV-4W3-WATER (RWEYQ8-14T9Y1B) 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.

51 of 51 shown
Type
Binary
Show
CoolAutomation CoolMasterNet Daikin VRV outdoor unit (PRO) objects - VRV-4W3-WATER (RWEYQ8-14T9Y1B) BACnet Points List
DescriptionStates
PIV256AirNetAirNet Addr.Read
PIV257HPHPhpRead
IV258AmbTAmbient temperature°CRead
IVmin259EvTEvaporating Temperature°CRead
IVmin260CndTCondensing Temperature°CRead
PIVmin261InvRotAmntInverter Rotation AmountrpsRead
PIV262EVMnLiqExpansion valve main liquidplsRead
PIV263EVScExpansion valve sub-coolplsRead
PIV264EVPrgExpansion valve purgeplsRead
PIV265DschTInvDisch. temp.(INV)°CRead
IV266AccInltTAccumulator Inlet Temp VRV3°CRead
IV267RcvrLiqTReceiver Liquid Temp.°CRead
PIV268InvFinTInverter fin temp.°CRead
PIVmin269InvCurInverter currentARead
BImin270Comp1InvCompressor1(INV)Read
BI271OiRtrnOil returnRead
BI272CcH1CH1:Crankcase HeaterRead
BI273ResrtStbyRestart stand-byRead
BImin274ErrStateUnit Error statRead
BI275HiPRtryHigh pressure retryRead
BI276LoPRtryLow pressure retryRead
BI277DschPipRtryDisch. pipe retryRead
BI2784WayVlvDualP4 way valve dual pressureRead
BI2794WayVlvPHE4 way valve PHERead
BI280HotGasLiqInjctHot gas liquid injectionRead
BI281HiPStpDnCtlH.P. stepping down cntlRead
BI282LoPStpDnCtlL.P. stepping down cntlRead
BI283DmndStpDnCtlDemand stepping down cntlRead
BI284InvDschStpDnCtlINV Disch. stepping down cntlRead
BI285InvOCStpDnCtlINV OC stepping down cntlRead
BI286InvFinStpDnCtlINV Fin stepping down cntlRead
BI287InvStbyINV stand-byRead
BImin288PumpY2M:PumpRead
BI289InvCoolFanM1F:INV_cool_fanRead
BI290StrtupCtlStartup controlRead
BI291OiRtrnAccOil return accumulatorRead
BI292GasScPrgGas SC and purgeRead
BI293MainLiqMain liquidRead
BI294OiRtrnLiqPHELiquid oil return PHERead
BI295OiRtrnHotGasHot gas oil returnRead
BI296LiqInvCoolLiquid inverter coolingRead
IV297InvGasOutltCoolTGas outlet inverter cooling temp°CRead
IV298GasH20PHETGas PHE H20 temp°CRead
IV299GasOutltScPrgTGas outlet SC and purge temp°CRead
IV300LiqH20PHETLiquid PHE H20 temp°CRead
IV301LiqStpVlvTLiquid stop valve temp°CRead
IVmin302H20InPHETH20 in PHE temp°CRead
IVmin303H20OutPHETH20 out PHE temp°CRead
IV304LiqEvtScPHETLiquid EVT SC PHE temp°CRead
IV305InvBodyTBody compressor temp°CRead
IV306WtrFlowCtlWater flow control%Read
Object ID lookup: CoolAutomation CoolMasterNet Daikin VRV outdoor unit (PRO) objects - VRV-4W3-WATER (RWEYQ8-14T9Y1B) 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 Daikin VRV outdoor unit (PRO) objects - VRV-4W3-WATER (RWEYQ8-14T9Y1B) 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 Daikin VRV outdoor unit (PRO) objects - VRV-4W3-WATER (RWEYQ8-14T9Y1B)

How many BACnet points does the CoolAutomation CoolMasterNet Daikin VRV outdoor unit (PRO) objects - VRV-4W3-WATER (RWEYQ8-14T9Y1B) have?

This list has 51 BACnet objects: 27 binary inputs, 15 integer values, 9 positive integer values. The exact set on a given unit depends on its firmware, installed options and configuration.

Which CoolAutomation CoolMasterNet Daikin VRV outdoor unit (PRO) objects - VRV-4W3-WATER (RWEYQ8-14T9Y1B) 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 Daikin VRV outdoor unit (PRO) objects - VRV-4W3-WATER (RWEYQ8-14T9Y1B) 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 Daikin VRV outdoor unit (PRO) objects - VRV-4W3-WATER (RWEYQ8-14T9Y1B)?

Start with BI 270 Comp1Inv (Inverter compressor running); BI 288 Pump (Pump output (Y2M)); PIV 261 InvRotAmnt (Inverter speed, rps); IV 302 H20InPHET (Water temperature into PHE, °C); IV 303 H20OutPHET (Water temperature out of PHE, °C); IV 259 EvT (Evaporating temperature, °C); IV 260 CndT (Condensing temperature, °C); PIV 269 InvCur (Inverter current, A); BI 274 ErrState (Unit error state).

How do I enable BMS control of the CoolAutomation CoolMasterNet Daikin VRV outdoor unit (PRO) objects - VRV-4W3-WATER (RWEYQ8-14T9Y1B)?

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 Daikin VRV outdoor unit (PRO) objects - VRV-4W3-WATER (RWEYQ8-14T9Y1B)?

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.