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Water-cooled chiller controller · BACnet points list

Daikin Applied EWWQ-KC water-cooled chiller, Nayda software (Daikin Applied Europe) BACnet points list

Updated 7 November 2026

Short answer

The EWWQ-KC units run the Nayda software on a POL486.65 controller. BACnet IP is a software option on the Ethernet port, enabled with connectivity kit EKRSCBMS. The list covers unit enable, mode and cool/heat setpoints, water temperatures, two circuits with one compressor each, evaporator and condenser pump data including variable-speed pump settings, and master/slave load and state objects.

This page lists 75 BACnet objects for the Daikin Applied EWWQ-KC water-cooled chiller, Nayda software (Daikin Applied Europe) — 25 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from Daikin Applied’s own free documentation, linked below.

Manufacturer
Daikin Applied
Model
EWWQ-KC water-cooled chiller, Nayda software (Daikin Applied Europe)
Equipment
Water-cooled chiller controller
Equipment type
Chillers
BACnet objects
75 (25 writable)
Transport
BACnet IP
Firmware
Nayda 1.00.A
Also known as
EWWQ-KC, EWWQ-KCW, Nayda, D-EIGOC00101-22_01EN_EWWQ-KC
Source document
BAS Integration guide - BACnet protocol (EWWQ-KC) · D-EIGOC00101-22_01EN_EWWQ-KC · rev. 2022-01
Download CSV 75 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 Daikin Applied’s current documentation and the live device before use. Not official Daikin Applied information. Terms of use.

BMS integration notes: Daikin Applied EWWQ-KC water-cooled chiller, Nayda software (Daikin Applied Europe)

Integration in brief

Select network control at the unit (ChillerLocalRemote BI 3 then reads Network), enable the unit with ChillerEnableStp and write the mode and cool/heat setpoints. Monitor unit status, leaving water temperature, the general alarm and the fault code.

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
BV 2ChillerEnableStpNetwork enable/disable of the unitWrite
MV 3ChillerOperationModeIce / cool / heat / pursuit mode commandWrite
AV 4NetworkCoolTempSetpointCool water setpoint from the BMSWrite
AV 6NetworkHeatTempSetpointHeat water setpoint from the BMSWrite
BV 8ClearAlarmClear alarms from the networkWrite
BI 3ChillerLocalRemoteShows whether network control is activeRead
MV 1UnitStatusUnit run stateRead
AI 2LvgEvapWaterTempUnitEvaporator leaving water temperatureRead
BI 10AlarmDigitalOutputAny active alarmRead
AV 905AVFaultAlarmCodeActive fault alarm codeRead

Enable & remote start

ChillerLocalRemote (BI 3) reads 0 = Network / 1 = Local and is read-only over BACnet, so network control has to be selected at the unit; the guide does not describe that step. Then write ChillerEnableStp (BV 2) = Enable, the mode (MV 3) and the network setpoints.

Network setup

Watch out for

Daikin Applied EWWQ-KC water-cooled chiller, Nayda software (Daikin Applied Europe) 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.

75 of 75 shown
Type
Multi-state
Access
Show
Daikin Applied EWWQ-KC water-cooled chiller, Nayda software (Daikin Applied Europe) BACnet Points List
DescriptionStates
BImin3ChillerLocalRemoteUnit Local/RemoteRead0=Network, 1=Local
BI7ChillerEnableOutputUnit Enable OutputRead0=Disabled, 1=Enabled
BI5RunEnabledUnit Run AllowedRead0=Off, 1=RunAllowed
BI6ChillerLimitedUnit Capacity LimitedRead0=NotLimited, 1=Limited
BImin10AlarmDigitalOutputUnit general alarmRead0=NoAlarm, 1=Alarm
BI4ThermostatStatusUnit On/OffRead0=Thermo Off, 1=Thermo On
BVmin2ChillerEnableStpUnit Enable SetpointWrite0=Disable, 1=Enable
BVmin8ClearAlarmClear Alarms - NetworkWrite0=None, 1=ClearAlarm
MV2ActiveModeUnit Mode OutputRead1=Ice, 2=Cool, 3=Heat
AV5ActiveLvgWaterTargetActive Setpoint°CRead
AV2ChillerCapacityActual Capacity%Read
AV1ActiveCapacityLimitActive Capacity Limit Output%Read
MVmin1UnitStatusUnit run modeRead1=Off, 2=Start, 3=Run, 4=PreShutdown, 5=Service
AI1EntEvapWaterTempEvaporator Entering Water Temp°CRead
AImin2LvgEvapWaterTempUnitEvaporator Leaving Water Temp Unit°CRead
AI3EntCondWaterTempCondenser Entering Water Temperature°CRead
AI4LvgCondWaterTempCondenser Leaving Water Temperature°CRead
BI2EvapFlowStatusEvap Flow Switch StatusRead0=No Flow, 1=Flow
AV151MSCtrlTmpMS Ctrl Tmp°CRead
AV903AVWarningAlarmCodeWarning CODERead
AV904AVProblemAlarmCodeProblem CODERead
AVmin905AVFaultAlarmCodeFault CODERead
MVmin3ChillerOperationModeUnit Mode Setpoint - NetworkWrite1=Ice, 2=Cool, 3=Heat, 4=Pursuit
AVmin4NetworkCoolTempSetpointCool Setpoint - Network°CWrite
AVmin6NetworkHeatTempSetpointHeat Setpoint - Network°CWrite
MV47UnitsMeasure UnitsWrite1=Imperial, 2=Metric
BV100EvapPump1FaultEvaporator Pump #1 FaultRead0=NoAlarm, 1=Alarm
BI101EvapPump1StateEvaporator Pump #1 StatusRead0=OffRequest, 1=OnRequest
AV102EvapPump1OperHoursEvaporator Pump #1 Run HourshWrite
BV120CondPump1FaultCondenser Pump #1 FaultRead0=NoAlarm, 1=Alarm
BI121CondPump1StateCondenser Pump #1 StatusRead0=OffRequest, 1=OnRequest
AV122CondPump1OperHoursCondenser Pump #1 Run HourshWrite
AV150EvapVPF'FixSpeedSetpt1Evaporator VFD Pump - Fixed Speed 1%Write
AVEvapVPF'FixSpeedSetpt2Evaporator VFD Pump - Fixed Speed 2%Write
AV152EvapVPF'StbySpeedSetptEvaporator VFD Pump - Standby Speed%Write
AV153EvapVPF'ActSpeedEvaporator VFD Pump - Actual Speed%Read
AV154EvapVPF'LoadDifPresSetptEvaporator VFD Pump - Building Differential Pressure SetpointkPaWrite
AV155EvapVPF'EvapDifPresSetptEvaporator VFD Pump - Unit Differential Pressure SetpointkPaWrite
AI156EvapVPF'LoadDifPresEvaporator VFD Pump - Building Differential PressurekPaRead
AI157EvapVPF'EvapDifPressEvaporator VFD Pump - Unit Differential PressurekPaRead
MV158EvapVPF'BypVlvStaEvaporator VFD Pump - Bypass Valve StateRead1=Closed, 2=Opened
AV159EvapVPF'DeltaTempSpEvaporator VFD Pump - DeltaTemperature SetpointdKWrite
AV160EvapVPF'DeltaTempEvaporator VFD Pump - DeltaTemperaturedKRead
AV170CondVPF'FixSpeedSetpt1Condenser VFD Pump - Fixed Speed 1%Write
AV171CondVPF'FixSpeedSetpt2Condenser VFD Pump - Fixed Speed 2%Write
AV172CondVPF'StbySpeedSetptCondenser VFD Pump - Standby Speed%Write
AV173CondVPF'ActSpeedCondenser VFD Pump - Actual Speed%Read
AV174CondVPF'LoadDifPresSetptCondenser VFD Pump - Building Differential Pressure SetpointkPaWrite
AV175CondVPF'CondDifPresSetptCondenser VFD Pump - Unit Differential Pressure SetpointkPaWrite
AI176CondVPF'LoadDifPresCondenser VFD Pump - Building Differential PressurekPaRead
AI177CondVPF'CondDifPressCondenser VFD Pump - Unit Differential PressurekPaRead
MV178CondVPF'BypVlvStaCondenser VFD Pump - Bypass Valve StateRead1=Closed, 2=Opened
AV179CondVPF'DeltaTempSpCondenser VFD Pump - DeltaTemperature SetpointdKWrite
AV180CondVPF'DeltaTempCondenser VFD Pump - DeltaTemperaturedKRead
MV300C1StateCircuit #1 StatusRead1=Off, 2=Preopen, 3=Start, 4=Run, 5=Pumpdown
BV321C1Comp1StatusCircuit #1 Comp #1 - StateRead0=Off, 1=On
AV322C1Comp1StartsCircuit #1 Comp #1 - StartsWrite
AV323C1Comp1HoursCircuit #1 Comp #1 - Run HourshWrite
MV330DisconnectDisconnect ModeWrite1=No, 2=Yes
MV400C2StateCircuit #2 StatusRead1=Off, 2=Preopen, 3=Start, 4=Run, 5=Pumpdown
BV421C2Comp1StatusCircuit #2 Comp #1 - StateRead0=Off, 1=On
AV422C2Comp1StartsCircuit #2 Comp #1 - StartsWrite
AV423C2Comp1HoursCircuit #2 Comp #1 - Run Hours - HighhWrite
BV502CommonLWTSenfCommonLWTSenfRead0=NoAlarm, 1=Alarm
BV503CommonCondLWTSenfCommonCondLWT - Sensor FaultRead0=NoAlarm, 1=Alarm
BV20MasterCommErrMaster Comm ErrRead0=NoAlarm, 1=Alarm
BV21Slave1CommErrSlave 1 Comm ErrRead0=NoAlarm, 1=Alarm
BV22Slave2CommErrSlave 2 Comm ErrRead0=NoAlarm, 1=Alarm
BV23Slave3CommErrSlave 3 Comm ErrRead0=NoAlarm, 1=Alarm
AV1150Slave1LoadSlave Load #1%Read
MV1154Slave1StateSlave State #1Read1=Off, 2=Run, 3=Alarm, 3=ComErr
AV1168Slave2LoadSlave Load #2%Read
MV1172Slave2StateSlave State #2Read1=Off, 2=Run, 3=Alarm, 4=ComErr, 5=Not Config
AV1186Slave3LoadSlave Load #3%Read
MV1190Slave3StateSlave State #3Read1=Off, 2=Run, 3=Alarm, 4=ComErr, 5=Not Config
Object ID lookup: Daikin Applied EWWQ-KC water-cooled chiller, Nayda software 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 EWWQ-KC water-cooled chiller, Nayda software (Daikin Applied Europe) 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 Daikin Applied EWWQ-KC water-cooled chiller, Nayda software (Daikin Applied Europe)

How many BACnet points does the Daikin Applied EWWQ-KC water-cooled chiller, Nayda software (Daikin Applied Europe) have?

This list has 75 BACnet objects: 8 analog inputs, 34 analog values, 9 binary inputs, 12 binary values, 12 multi-state values. The exact set on a given unit depends on its firmware, installed options and configuration.

Which Daikin Applied EWWQ-KC water-cooled chiller, Nayda software (Daikin Applied Europe) BACnet points are writable?

25 of the 75 objects accept a write. Points marked Command have a priority array: a write holds until it is released, so release it back to automatic when you are done.

Where is the official Daikin Applied EWWQ-KC water-cooled chiller, Nayda software (Daikin Applied Europe) BACnet documentation?

The source is BAS Integration guide - BACnet protocol (EWWQ-KC) (D-EIGOC00101-22_01EN_EWWQ-KC), revision 2022-01, published free by Daikin Applied at https://easyspec.daikin.fr/Easyspec/2-BASE_WEB/3-Eau%20Glacee%20%26%20VC/Documentations/K_EWWQ-KCW/Manuel%20adressage%20com/COM_K_EWWQ-KCW.zip.

What are the minimum BACnet points to integrate the Daikin Applied EWWQ-KC water-cooled chiller, Nayda software (Daikin Applied Europe)?

Start with BV 2 ChillerEnableStp (Network enable/disable of the unit); MV 3 ChillerOperationMode (Ice / cool / heat / pursuit mode command); AV 4 NetworkCoolTempSetpoint (Cool water setpoint from the BMS); AV 6 NetworkHeatTempSetpoint (Heat water setpoint from the BMS); BV 8 ClearAlarm (Clear alarms from the network); BI 3 ChillerLocalRemote (Shows whether network control is active); MV 1 UnitStatus (Unit run state); AI 2 LvgEvapWaterTempUnit (Evaporator leaving water temperature); BI 10 AlarmDigitalOutput (Any active alarm); AV 905 AVFaultAlarmCode (Active fault alarm code).

How do I enable BMS control of the Daikin Applied EWWQ-KC water-cooled chiller, Nayda software (Daikin Applied Europe)?

ChillerLocalRemote (BI 3) reads 0 = Network / 1 = Local and is read-only over BACnet, so network control has to be selected at the unit; the guide does not describe that step. Then write ChillerEnableStp (BV 2) = Enable, the mode (MV 3) and the network setpoints.

How do I check these points on the real EWWQ-KC water-cooled chiller, Nayda software (Daikin Applied Europe)?

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 Daikin Applied BACnet points lists

Source: BAS Integration guide - BACnet protocol (EWWQ-KC) · D-EIGOC00101-22_01EN_EWWQ-KC · rev. 2022-01. Object names, instances and units are reproduced as published; descriptions are our own.