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Air-cooled scroll chiller controller · BACnet points list
Daikin Applied EWAT-B-C / EWAF-B-C air-cooled chiller (Daikin Applied Europe) BACnet points list
Updated 28 October 2026
The EWAT-B-C and EWAF-B-C air-cooled chillers use a MicroTech 4 controller running the "ARES" software. BACnet IP or BACnet MS/TP comes from a POL908/POL904 module or the onboard software option. The list covers unit enable, mode and network setpoints, heat recovery, free cooling, variable primary flow, per-circuit refrigerant and fan data for up to four compressors per circuit, energy monitoring and alarm objects.
This page lists 205 BACnet objects for the Daikin Applied EWAT-B-C / EWAF-B-C air-cooled chiller (Daikin Applied Europe) — 39 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
- EWAT-B-C / EWAF-B-C air-cooled chiller (Daikin Applied Europe)
- Equipment
- Air-cooled scroll chiller controller
- Equipment type
- Chillers
- BACnet objects
- 205 (39 writable)
- Transport
- BACnet IP, BACnet MS/TP
- Firmware
- Not stated
- Default device instance
- 1
- Also known as
- EWA(F)T-B-C, EWAT-B-C, EWAF-B-C, EWAT B-C, EWAF B-C, ARES, D-EIGOC00107-24_04
BMS integration notes: Daikin Applied EWAT-B-C / EWAF-B-C air-cooled chiller (Daikin Applied Europe)
Select network control at the unit (CtrlSource BI 3 then reads Network), enable the chiller with UnitEnableStp, and write the mode, cool setpoint and capacity limit. Monitor unit status, leaving water temperature and the fault index/code; this list has no single alarm BI.
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.
| Object | Name | Why | Access |
|---|---|---|---|
| BV 2 | UnitEnableStp | Network enable/disable of the chiller | Command |
| MV 3 | UnitModeSetpointNetwork | Ice / cool / heat / pursuit mode command | Command |
| AV 4 | NetworkCoolTempSetpoint | Leaving water cool setpoint from the BMS | Write |
| AV 3 | NetworkCapacityLimitSetpoint | Capacity limit from the BMS | Write |
| BV 8 | ClearAlarm | Clear alarms from the network | Command |
| BI 3 | CtrlSource | Shows whether network control is active | Read |
| MV 1 | UnitStatus | Chiller run state | Read |
| AI 2 | EvapLvgWTemp | Leaving chilled water temperature | Read |
| MV 54 | U'ShutdownAlm | Unit shutdown alarm (1 = Alarm) | Read |
| AV 905 | AVFaultAlarmCode | Active fault alarm code | Read |
Enable & remote start
CtrlSource (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. With network control active the BMS writes UnitEnableStp (BV 2) = Enable, then the mode (MV 3) and network setpoints.
Sensors & values from the BMS
VarFlow'LoadDPres (AI 1905, plant differential pressure) is marked writable for variable primary flow; the guide does not say whether the BMS must supply it.
Network setup
- BACnet IP comes from the POL908 module or, on MicroTech 4, the onboard BACnet IP software option (enabled under Commissioning > Configuration > Software Options with an unlock password).
- BACnet MS/TP comes from the POL904 module or the onboard BACnet MS/TP software option.
- BACnet IP defaults: device instance 1, UDP port 47808, DHCP off; set Apply Changes = Yes after editing, which restarts the controller.
- BACnet MS/TP module defaults: MAC address 24, 38400 baud, Max Master 127, Max Info Frames 1; the device instance is derived from the production number and date code. Cycle power after changing the address.
- EDE files are regenerated each time the BACnet server starts and can be downloaded by FTP from the POL908; re-export them after any configuration change.
Watch out for
- The guide marks the enable, alarm-reset, mode, heat recovery and free-cooling enable objects as written at priority 8 (access C here); the network setpoints are plain W.
- Compressor start counters and run-hour AVs are marked writable; don't write them from the BMS.
- Alarms come as Warning, Problem and Fault index/code AVs (900-905); decode them with the alarm code table in section 5.1 of the guide.
- MV 4 Units selects metric or English units for the BACnet values; set it once, not cyclically.
Daikin Applied EWAT-B-C / EWAF-B-C air-cooled chiller (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.
| Description | States | |||||
|---|---|---|---|---|---|---|
| BImin | 3 | CtrlSource | Unit - Control Source | Read | 0=Network, 1=Local | |
| BI | 7 | EnableOutput | Unit - Enabled State | Read | 0=Disabled, 1=Enabled | |
| BI | 5 | RunEnabled | Unit - Run Allowed | Read | 0=Off, 1=Allowed | |
| BI | 6 | UnitLimited | Unit - Capacity Limited | Read | 0=NotLimited, 1=Limited | |
| BI | 10 | GenericStatus | Unit - Generic Status | Read | 0=Off, 1=On | |
| BI | 2 | EvapWFlowState | Evaporator - Water Flow State | Read | 0=NoFlow, 1=Flow | |
| BI | 4 | UnitOnOff | Unit - Operating State | Read | 0=ThermoOff, 1=ThermoOn | |
| BVmin | 2 | UnitEnableStp | Unit - Enable Setpoint | Command | 0=Disable, 1=Enable | |
| BVmin | 8 | ClearAlarm | Unit - Alarm Reset Setpoint | Command | 0=None, 1=Clear | |
| MV | 2 | ActMode | Unit - Active Operation Mode | Read | 1=Ice, 2=Cool, 3=Heat, 4=Pursuit | |
| AV | 5 | ActTempStp | Unit - Active Temperature Setpoint | °C | Read | |
| AV | 2 | ActCapacity | Unit - Actual Capacity | % | Read | |
| AV | 1 | ActCapacityLim | Unit - Active Capacity Limit | % | Read | |
| MVmin | 1 | UnitStatus | Unit - Status | Read | 1=Off, 2=Start, 3=Run, 4=PreShutdown, 5=Service | |
| AI | 1 | EvapEntWTemp | Evaporator Entering Water Temperature | °C | Read | |
| AImin | 2 | EvapLvgWTemp | Evaporator Leaving Water Temperature | °C | Read | |
| BV | 7 | HeatRec'EnableStp | Heat Recovery - Enable Setpoint | Command | 0=Disable, 1=Enable | |
| AI | 177 | HeatRec'EntWTemp | Heat Recovery - Entering Water Temperature | °C | Read | |
| AI | 150 | HeatRec'LvgWTemp | Heat Recovery - Leaving Water Temperature | °C | Read | |
| AI | 5 | OutdoorAirTemp | Outside Air Temperature | °C | Read | |
| AV | 993 | AvgCurrent | Unit - Average Current | A | Read | |
| AV | 992 | AvgVoltage | Unit - Average Voltage | V | Read | |
| AV | 994 | ActPower | Unit - Active Power | kW | Read | |
| AV | 902 | AVWarningAlarm | Unit Alarm - Warning Index | Read | ||
| AV | 900 | AVProblemAlarm | Unit Alarm - Problem Index | Read | ||
| AV | 901 | AVFaultAlarm | Unit Alarm - Fault Index | Read | ||
| AV | 903 | AVWarningAlarmCode | Unit Alarm - Warning Code | Read | ||
| AV | 904 | AVProblemAlarmCode | Unit Alarm - Problem Code | Read | ||
| AVmin | 905 | AVFaultAlarmCode | Unit Alarm - Fault Code | Read | ||
| MVmin | 3 | UnitModeSetpointNetwork | Unit - Operation Mode Setpoint | Command | 0=NULL, 1=Ice, 2=Cool, 3=Heat, 4=Pursuit | |
| AVmin | 4 | NetworkCoolTempSetpoint | Unit - Cool Temperature Setpoint | °C | Write | |
| AV | 7 | NetworkIceTempSetpoint | Unit - Ice Temperature Setpoint | °C | Write | |
| AV | 6 | NetworkHeatTempSetpoint | Unit - Heat Temperature Setpoint | °C | Write | |
| AVmin | 3 | NetworkCapacityLimitSetpoint | Unit - Capacity Limit Setpoint | % | Write | |
| AI | 99 | C1'CondRefPressure | Circuit 1 - Condenser Refrigerant Pressure | kPa | Read | |
| AV | 34 | C1'CondSatRefTemp | Circuit 1 - Condeser Saturated Temperature | °C | Read | |
| AI | 141 | C1'EvapRefPressure | Circuit 1 - Evaporator Refrigerant Pressure | kPa | Read | |
| AV | 68 | C1'EvapSatRefTemp | Circuit 1 - Evaporator Saturated Temperature | °C | Read | |
| AI | 100 | C2'CondRefPressure | Circuit 2 - Condenser Refrigerant Pressure | kPa | Read | |
| AV | 35 | C2'CondSatRefTemp | Circuit 2 - Condeser Saturated Temperature | °C | Read | |
| AI | 142 | C2'EvapRefPressure | Circuit 2 - Evaporator Refrigerant Pressure | kPa | Read | |
| AV | 69 | C2'EvapSatRefTemp | Circuit 2 - Evaporator Saturated Temperature | °C | Read | |
| MV | 51 | C1'ShutdownAlm | Circuit 1 - Shutdown Alarm | Read | 0=NoAlarm, 1=Alarm | |
| MV | 52 | C2'ShutdownAlm | Circuit 2 - Shutdown Alarm | Read | 0=NoAlarm, 1=Alarm | |
| MVmin | 54 | U'ShutdownAlm | Unit - Shutdown Alarm | Read | 0=NoAlarm, 1=Alarm | |
| AV | 49 | NetworkHeatRecSetpoint | Unit - Heat Recovery Setpoint | °C | Write | |
| MV | 42 | HeatRec'State | Heat Recovery - Operating State | Read | 1=Off, 2=Recirculation, 3=Regulation | |
| AI | 105 | C1'Comp1'SuctTemp | Circ 1 Compressor 1 - Suction Temperature | °C | Read | |
| AI | 72 | C1'DischTemp | Circ 1 - Discharge Temperature | °C | Read | |
| AI | 63 | C1'Comp1'DischTemp | Circ 1 Compressor 1 - Discharge Temperature | °C | Read | |
| AV | 92 | C1'Comp1'Starts | Circ 1 Compressor 1 - Number of Starts | Write | ||
| AV | 74 | C1'Comp1'RunHours | Circ 1 Compressor 1 - Number of Running Hours | h | Write | |
| AI | 64 | C1'Comp2'DischTemp | Circ 1 Compressor 2 - Discharge Temperature | °C | Read | |
| AV | 93 | C1'Comp2'Starts | Circ 1 Compressor 2 - Number of Starts | Write | ||
| AV | 75 | C1'Comp2'RunHours | Circ 1 Compressor 2 - Number of Running Hours | h | Write | |
| AI | 65 | C1'Comp3'DischTemp | Circ 1 Compressor 3 - Discharge Temperature | °C | Read | |
| AV | 94 | C1'Comp3'Starts | Circ 1 Compressor 3 - Number of Starts | Write | ||
| AV | 76 | C1'Comp3'Hours | Circ 1 Compressor 3 - Number of Running Hours | h | Write | |
| AI | 108 | C2'Comp1'SuctTemp | Circ 2 Compressor 1 - Suction Temperature | °C | Read | |
| AI | 73 | C2'DischTemp | Circ 2 - Discharge Temperature | °C | Read | |
| AI | 66 | C2'Comp1'DischTemp | Circ 2 Compressor 1 - Discharge Temperature | °C | Read | |
| AV | 95 | C2'Comp1'Starts | Circ 2 Compressor 1 - Number of Starts | Write | ||
| AV | 77 | C2'Comp1'Hours | Circ 2 Compressor 1 - Number of Running Hours | h | Write | |
| AI | 67 | C2'Comp2'DischTemp | Circ 2 Compressor 2 - Discharge Temperature | °C | Read | |
| AV | 96 | C2'Comp2'Starts | Circ 2 Compressor 2 - Number of Starts | Write | ||
| AV | 78 | C2'Comp2'RunHours | Circ 2 Compressor 2 - Number of Running Hours | h | Write | |
| AI | 68 | C2'Comp3'DischTemp | Circ 2 Compressor 3 - Discharge Temperature | °C | Read | |
| AV | 97 | C2'Comp3'Starts | Circ 2 Compressor 3 - Number of Starts | Write | ||
| AV | 79 | C2'Comp3'RunHours | Circ 2 Compressor 3 - Number of Running Hours | h | Write | |
| AI | 70 | C1'Comp4'DischTemp | Circ 1 Compressor 4 - Discharge Temperature | °C | Read | |
| AV | 99 | C1'Comp4'Starts | Circ 1 Compressor 4 - Number of Starts | Write | ||
| AV | 81 | C1'Comp4'Hours | Circ 1 Compressor 4 - Number of Running Hours | h | Write | |
| AI | 71 | C2'Comp4'DischTemp | Circ 2 Compressor 4 - Discharge Temperature | °C | Read | |
| AV | 100 | C2'Comp4'Starts | Circ 2 Compressor 4 - Number of Starts | Write | ||
| AV | 82 | C2'Comp4'Hours | Circ 2 Compressor 4 - Number of Running Hours | h | Write | |
| BV | 28 | Freecool'EnableStp | Freecooling - Enable Setpoint | Command | 0=Disable, 1=Enable | |
| MV | 31 | Freecool'Status | Freecooling - Status | Read | 1=Off, 2=Full, 3=Mixed, 4=Mechanical | |
| MV | 32 | Freecool'Enabled | Freeccoling - Enabled State | Read | 1=Off, 2=Run | |
| MV | 29 | Freecool'C1Mode | Freecooling - Circuit 1 Mode | Read | 1=Mechanical, 2=Switching, 3=Switching, 4=FreeCooling, 5=FC Pumpdown, 6=FC Off | |
| MV | 30 | Freecool'C2Mode | Freecooling - Circuit 2 Mode | Read | 1=Mechanical, 2=Switching, 3=Switching, 4=FreeCooling, 5=FC Pumpdown, 6=FC Off | |
| AV | 260 | ThermCapacity | Performance - Unit Thermal Capacity | kW | Read | |
| AV | 262 | ElectPower | Performance - Unit Power Input | kW | Read | |
| AV | 264 | EER | Performance - Unit Efficiency | Read | ||
| AV | 261 | ThermEnergy | Performance - Unit Thermal Energy | MWh | Read | |
| AV | 263 | ElectEnergy | Performance - Unit Electrical Energy | MWh | Read | |
| AV | 296 | EvapPump'Speed | Evaporator Pump - Speed | % | Read | |
| AV | 112 | EvapPump1'RunHours | Evaporator Pump 1 - Number of Running Hours | h | Read | |
| BI | 8 | EvapPump1'State | Evaporator Pump 1 - Operating State | Read | 0=Stop, 1=Run | |
| AV | 113 | EvapPump2'RunHours | Evaporator Pump 2 - Number of Running Hours | h | Read | |
| BI | 9 | EvapPump2'State | Evaporator Pump 2 - Operating State | Read | 0=Stop, 1=Run | |
| MV | 4 | Units | Unit - BACnet Measurement unit setpoint | Write | 1=Metric, 2=English | |
| BV | 917 | Unit'OFFEvapEntWTempFail | Unit Alarm - Evaporator Entering Temperature Sensor Fault | Read | 0=NoAlarm, 1=Alarm | |
| BV | 512 | BadSetpointResetInput | Unit Warning - Setpoint Reset Input Out of Range | Read | 0=NoAlarm, 1=Alarm | |
| BV | 513 | BadDemandLimitInput | Unit Warning - Demand Limit Input Out of Range | Read | 0=NoAlarm, 1=Alarm | |
| BV | 533 | Unit'InhibitOATLow | Unit Warning - Inhibition for Low Ambient Temperature | Read | 0=NoAlarm, 1=Alarm | |
| BV | 540 | C1'UnloadCondPresHi | Circuit 1 Warning - Unload for Condenser High Pressure | Read | 0=NoAlarm, 1=Alarm | |
| BV | 541 | C2'UnloadCondPresHi | Circuit 2 Warning - Unload for Condenser High Pressure | Read | 0=NoAlarm, 1=Alarm | |
| BV | 556 | C1'InhibitEvapPresLow | Circuit 1 Warning - Inhibition for Evaporator Low Pressure | Read | 0=NoAlarm, 1=Alarm | |
| BV | 557 | C2'InhibitEvapPresLow | Circuit 2 Warning - Inhibition for Evaporator Low Pressure | Read | 0=NoAlarm, 1=Alarm | |
| BV | 561 | C1'UnloadEvapPresLow | Circuit 1 Warning - Unload for Evaporator Low Pressure | Read | 0=NoAlarm, 1=Alarm | |
| BV | 562 | C2'UnloadEvapPresLow | Circuit 2 Warning - Unload for Evaporator Low Pressure | Read | 0=NoAlarm, 1=Alarm | |
| BV | 575 | EvapPump1'Fault | Evaporator Pump 1 - Fault | Read | 0=NoAlarm, 1=Alarm | |
| BV | 576 | EvapPump2'Fault | Evaporator Pump 2 - Fault | Read | 0=NoAlarm, 1=Alarm | |
| BV | 599 | C1'Comp1'OFFPresRatioLow | Circ 1 Comp 1 Alarm - Low Pressure Ratio | Read | 0=NoAlarm, 1=Alarm | |
| BV | 601 | C2'Comp1'OFFPresRatioLow | Circ 2 Comp 1 Alarm - Low Pressure Ratio | Read | 0=NoAlarm, 1=Alarm | |
| BV | 605 | Unit'OFFOATempSenFail | Unit Alarm - Outside Air Temperature Sensor Fault | Read | 0=NoAlarm, 1=Alarm | |
| BV | 625 | C1'Comp1'OFFMtrProtect | Circ 1 Comp 1 Alarm - Motor Protection | Read | 0=NoAlarm, 1=Alarm | |
| BV | 626 | C1'Comp2'OFFMtrProtect | Circ 1 Comp 2 Alarm - Motor Protection | Read | 0=NoAlarm, 1=Alarm | |
| BV | 627 | C2'Comp1'OFFMtrProtect | Circ 2 Comp 1 Alarm - Motor Protection | Read | 0=NoAlarm, 1=Alarm | |
| BV | 628 | C2'Comp2'OFFMtrProtect | Circ 2 Comp 2 Alarm - Motor Protection | Read | 0=NoAlarm, 1=Alarm | |
| BV | 629 | C1'Comp3'OFFMtrProtect | Circ 1 Comp 3 Alarm - Motor Protection | Read | 0=NoAlarm, 1=Alarm | |
| BV | 630 | C2'Comp3'OFFMtrProtect | Circ 2 Comp 3 Alarm - Motor Protection | Read | 0=NoAlarm, 1=Alarm | |
| BV | 631 | C1'Comp4'OFFMtrProtect | Circ 1 Comp 4 Alarm - Motor Protection | Read | 0=NoAlarm, 1=Alarm | |
| BV | 632 | C2'Comp4'OFFMtrProtect | Circ 2 Comp 4 Alarm - Motor Protection | Read | 0=NoAlarm, 1=Alarm | |
| BV | 668 | C1'OFFCondPresFail | Circuit 1 Alarm - Condenser Pressure Sensor Fault | Read | 0=NoAlarm, 1=Alarm | |
| BV | 670 | C2'OFFCondPresFail | Circuit 2 Alarm - Condenser Pressure Sensor Fault | Read | 0=NoAlarm, 1=Alarm | |
| BV | 676 | C1'OFFCondPresHi | Circuit 1 Alarm - Condenser High Pressure | Read | 0=NoAlarm, 1=Alarm | |
| BV | 678 | C2'OFFCondPresHi | Circuit 2 Alarm - Condenser High Pressure | Read | 0=NoAlarm, 1=Alarm | |
| BV | 688 | C1'OFFDischTempFail | Circuit 1 Alarm - Discharge Temperature Sensor Fault | Read | 0=NoAlarm, 1=Alarm | |
| BV | 690 | C2'OFFDischTempFail | Circuit 2 Alarm - Discharge Temperature Sensor Fault | Read | 0=NoAlarm, 1=Alarm | |
| BV | 701 | Unit'OFFEvapFlowLoss | Unit Alarm - Evaporator Water Flow Loss | Read | 0=NoAlarm, 1=Alarm | |
| BV | 702 | Unit'OFFEvapLvgWTempLow | Unit Alarm - Evaporator Water Freeze | Read | 0=NoAlarm, 1=Alarm | |
| BV | 704 | C1'OFFEvapPresLow | Circuit 1 Alarm - Evaporator Pressure Low | Read | 0=NoAlarm, 1=Alarm | |
| BV | 706 | C2'OFFEvapPresLow | Circuit 2 Alarm - Evaporator Pressure Low | Read | 0=NoAlarm, 1=Alarm | |
| BV | 711 | C1'OFFEvapPresFail | Circuit 1 Alarm - Evaporator Pressure Sensor Failure | Read | 0=NoAlarm, 1=Alarm | |
| BV | 713 | C2'OFFEvapPresFail | Circuit 2 Alarm - Evaporator Pressure Sensor Failure | Read | 0=NoAlarm, 1=Alarm | |
| BV | 742 | C1'OFFRestartsAlm | Circuit 1 Alarm - Too many restart | Read | 0=NoAlarm, 1=Alarm | |
| BV | 744 | C2'OFFRestartsAlm | Circuit 2 Alarm - Too many restart | Read | 0=NoAlarm, 1=Alarm | |
| BV | 748 | Unit'OFFEvapLvgWTempFail | Unit Alarm - Evaporator Leaving Temperature Sensor Fault | Read | 0=NoAlarm, 1=Alarm | |
| BV | 760 | C1'OFFMechPressHi | Circuit 1 Alarm - Mechanical High Pressure | Read | 0=NoAlarm, 1=Alarm | |
| BV | 762 | C2'OFFMechPressHi | Circuit 2 Alarm - Mechanical High Pressure | Read | 0=NoAlarm, 1=Alarm | |
| BV | 735 | C1'OFFLiquidTsenf | Circuit 1 Alarm - Liquid Temperature Sensor Failure | Read | 0=NoAlarm, 1=Alarm | |
| BV | 737 | C2'OFFLiquidTsenf | Circuit 2 Alarm - Liquid Temperature Sensor Failure | Read | 0=NoAlarm, 1=Alarm | |
| BV | 857 | C1'Comp1'OFFSuctTempFail | Circ 1 Comp 1 Alarm - Suction Temperature Sensor Fault | Read | 0=NoAlarm, 1=Alarm | |
| BV | 859 | C2'Comp1'OFFSuctTempSen | Circ 2 Comp 1 Alarm - Suction Temperature Sensor Fault | Read | 0=NoAlarm, 1=Alarm | |
| BV | 722 | U'OFFMainBoardOffline | Controller Alarm - Main Controller Board Offline | Read | 0=NoAlarm, 1=Alarm | |
| BV | 723 | C1'OFFBoardOffline | Controller Alarm - Circuit 1 Board Offline | Read | 0=NoAlarm, 1=Alarm | |
| BV | 724 | C2'OFFBoardOffline | Controller Alarm - Circuit 2 Board Offline | Read | 0=NoAlarm, 1=Alarm | |
| BV | 732 | U'OFFPol945BoardOffline | Controller Alarm - Pol945 Board Offline | Read | 0=NoAlarm, 1=Alarm | |
| BV | 733 | U'OFFDLTBoardOffline | Controller Alarm - DLT Board Offline | Read | 0=NoAlarm, 1=Alarm | |
| BV | 516 | C1'FailPumpdown | Circuit 1 Alarm - Pumpdown Failure | Read | 0=NoAlarm, 1=Alarm | |
| BV | 517 | C2'FailPumpdown | Circuit 2 Alarm - Pumpdown Failure | Read | 0=NoAlarm, 1=Alarm | |
| BV | 924 | Unit'ExternalEvent | Unit Alarm - External Event | Read | 0=NoAlarm, 1=Alarm | |
| BV | 905 | C1'OFFNoPresChgAtStart | Circuit 1 Alarm - No Pressure change at Start | Read | 0=NoAlarm, 1=Alarm | |
| BV | 906 | C2'OFFNoPresChgAtStart | Circuit 2 Alarm - No Pressure change at Start | Read | 0=NoAlarm, 1=Alarm | |
| BV | 921 | EmergencyStopAlarm | Unit Alarm - Emergency Stop Switch | Read | 0=NoAlarm, 1=Alarm | |
| BV | 922 | EvapWTempInverted | Unit Alarm - Evaporator Temperature Sensors Inverted | Read | 0=NoAlarm, 1=Alarm | |
| BV | 923 | Unit'OFFExternalAlarm | Unit Alarm - External Alarm | Read | 0=NoAlarm, 1=Alarm | |
| BV | 929 | HRWTempInverted | Unit Alarm - Heat Recovery Temperature Sensors Inverted | Read | 0=NoAlarm, 1=Alarm | |
| BV | 967 | Unit'OFFPhaseVoltage | Unit Alarm - Wrong Phase Voltage | Read | 0=NoAlarm, 1=Alarm | |
| BV | 844 | C1'OFFGasLeakage | Circuit 1 Alarm - Gas Leakage | Read | 0=NoAlarm, 1=Alarm | |
| BV | 845 | C2'OFFGasLeakage | Circuit 2 Alarm - Gas Leakage | Read | 0=NoAlarm, 1=Alarm | |
| AI | 187 | SwitchBoxTemp | Unit - Electrical Panel Temperature | °C | Read | |
| BV | 983 | Unit'SwitchBoxSensFault | Unit Warning - Electrical Panel Temp Sensor Fault | Read | 0=NoAlarm, 1=Alarm | |
| BV | 984 | Unit'SwitchBoxTempHigh | Unit Warning - Electrical Panel High Temperature | Read | 0=NoAlarm, 1=Alarm | |
| BV | 980 | EnergyMtrCommFail | Controller Alarm - Energy Meter Communication Failure | Read | 0=NoAlarm, 1=Alarm | |
| BV | 838 | C1'FanAlm | Circuit 1 Alarm - Fan Fault | Read | 0=NoAlarm, 1=Alarm | |
| BV | 839 | C2'FanAlm | Circuit 2 Alarm - Fan Fault | Read | 0=NoAlarm, 1=Alarm | |
| BV | 908 | C1'FanCommAlm | Circuit 1 Alarm - Fan Communication Failure | Read | 0=NoAlarm, 1=Alarm | |
| BV | 909 | C2'FanCommAlm | Circuit 2 Alarm - Fan Communication Failure | Read | 0=NoAlarm, 1=Alarm | |
| MV | 1710 | C2'Comp4'OffAutoStp | Circ 2 Compressor 4 - OffAuto Setpoint | Write | 0=Off, 1=Auto | |
| BV | 1721 | C2'Comp4'State | Circ 2 Compressor 4 - Operating State | Read | 0=Off, 1=On | |
| MV | 1749 | C1'Comp4'OffAutoStp | Circ 1 Compressor 4 - OffAuto Setpoint | Write | 0=Off, 1=Auto | |
| BV | 1760 | C1'Comp4'State | Circ 1 Compressor 4 - Operating State | Read | 0=Off, 1=On | |
| MV | 1775 | C2'Comp3'OffAutoStp | Circ 2 Compressor 3 - OffAuto Setpoint | Write | 0=Off, 1=Auto | |
| BV | 1786 | C2'Comp3'State | Circ 2 Compressor 3 - Operating State | Read | 0=Off, 1=On | |
| MV | 445 | C2'Comp2'OffAutoStp | Circ 2 Compressor 2 - OffAuto Setpoint | Write | 0=Off, 1=Auto | |
| BV | 446 | C2'Comp2'State | Circ 2 Compressor 2 - Operating State | Read | 0=Off, 1=On | |
| AV | 1800 | C2'Comp1'ActCapacity | Circ 2 Compressor 1 - Actual Capacity | % | Read | |
| MV | 440 | C2'Comp1'OffAutoStp | Circ 2 Compressor 1 - OffAuto Setpoint | Write | 0=Off, 1=Auto | |
| BV | 441 | C2'Comp1'State | Circ 2 Compressor 1 - Operating State | Read | 0=Off, 1=On | |
| MV | 1814 | C1'Comp3'OffAutoStp | Circ 1 Compressor 3 - OffAuto Setpoint | Write | 0=Off, 1=Auto | |
| BV | 434 | C1'Comp3'State | Circ 1 Compressor 3 - Operating State | Read | 0=Off, 1=On | |
| MV | 435 | C1'Comp2'OffAutoStp | Circ 1 Compressor 2 - OffAuto Setpoint | Write | 0=Off, 1=Auto | |
| BV | 436 | C1'Comp2'State | Circ 1 Compressor 2 - Operating State | Read | 0=Off, 1=On | |
| AV | 1840 | C1'Comp1'ActCapacity | Circ 1 Compressor 1 - Actual Capacity | % | Read | |
| MV | 430 | C1'Comp1'OffAutoStp | Circ 1 Compressor 1 - OffAuto Setpoint | Write | 0=Off, 1=Auto | |
| BV | 431 | C1'Comp1'State | Circ 1 Compressor 1 - Operating State | Read | 0=Off, 1=On | |
| AV | 1855 | NrCircuits | Unit - Number of Circuits | Read | ||
| AV | 1856 | NrCompressors | Unit - Number of Compressors | Read | ||
| AV | 1857 | UnitTons | Unit - Number of Tons | tons | Read | |
| AV | 1896 | C2'EvapSuperheatStpVal | Circuit 2 - Evaporator Superheat Active Setpoint | dK | Read | |
| AV | 1897 | C1'EvapSuperheatStpVal | Circuit 1 - Evaporator Superheat Active Setpoint | dK | Read | |
| AV | 1898 | C2'EvapSuperheat | Circuit 2 - Evaporator Superheat Temperature | dK | Read | |
| AV | 1899 | C1'EvapSuperheat | Circuit 1 - Evaporator Superheat Temperature | dK | Read | |
| AV | 990 | ActEnergy | Unit - Active Energy | kWh | Read | |
| AV | 991 | PowerFactor | Unit - Power Factor | Read | ||
| AI | 1905 | VarFlow'LoadDPres | Variable Flow - Plant Differential Pressure | kPa | Write | |
| MV | 1906 | VarFlow'WBypVlvSta | Varibale Flow - Water Bypass Valve State | Read | 1=Closed, 2=Opened | |
| AV | 1909 | VarFlow'LoadDPresStpt | Varibale Flow - Plant Differential Pressure setpoint | kPa | Write | |
| AV | 1911 | VarFlow'DeltaTemp | Variable Flow - Plant Delta Temperature | dK | Read | |
| AV | 1913 | VarFlow'DeltaTempStp | Variable Flow - Plant Delta Temperature Setpoint | dK | Write | |
| AV | 1915 | VarFlow'EvapFixSpeedStp | Varibale Flow - Evaporator Fixed Speed Setpoint | % | Write | |
| AV | 208 | C2'ExpValvePos | Circuit 2 - Expansion Valve Position | % | Read | |
| AV | 209 | C2'FanSpeed | Circuit 2 - Fan Speed | % | Read | |
| AV | 210 | C2'CondApproach | Circuit 2 - Condenser Approach Temperature | dK | Read | |
| AV | 211 | C2'EvapApproach | Circuit 2 - Evaporator Approach Temperature | dK | Read | |
| AV | C2'FanStatus | Circuit 2 - Fan Staging (guide repeats instance 1997) | Read | |||
| AV | 168 | C1'ExpValvePos | Circuit 1 - Expansion Valve Position | % | Read | |
| AI | 173 | C1'LiqRefrTemp | Circuit 1 - Liquid Line Refrigerant Temperature | °C | Read | |
| AI | 174 | C2'LiqRefrTemp | Circuit 2 - Liquid Line Refrigerant Temperature | °C | Read | |
| AV | 169 | C1'FanSpeed | Circuit 1 - Fan Speed | % | Read | |
| AV | 170 | C1'CondApproach | Circuit 1 - Condenser Approach Temperature | dK | Read | |
| AV | 171 | C1'EvapApproach | Circuit 1 - Evaporator Approach Temperature | dK | Read | |
| AV | 1997 | C1'FanStatus | Circuit 1 - Fan Staging | Read |
No points match these filters.
Integration notes
- Close relative of the EWAT-B (NASH) list: the core unit objects keep the same instances; this version adds a fourth compressor per circuit, energy monitoring (AV 260-264), more alarm BVs, and has BI 10 GenericStatus in place of an alarm output.
- Heat recovery, free-cooling, variable-flow and fourth-compressor objects only apply when the unit has those options.
- Access "W (Prio 8)" in the guide is shown as C; plain "W" is shown as W. The network cool/heat/ice/capacity setpoints are printed as plain W in this revision.
- AV 1997 is printed for both C1'FanStatus and C2'FanStatus; C2'FanStatus is listed without an instance.
- Units "°Dc" in the guide (temperature difference) are shown as dK.
- Default device instance 1 applies to BACnet IP; on the MS/TP module it is derived from the production number.
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. Easy BACnet scans a network for BACnet IP devices from an Android phone, reads every object on the EWAT-B-C / EWAF-B-C air-cooled chiller (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 EWAT-B-C / EWAF-B-C air-cooled chiller (Daikin Applied Europe)
How many BACnet points does the Daikin Applied EWAT-B-C / EWAF-B-C air-cooled chiller (Daikin Applied Europe) have?
This list has 205 BACnet objects: 25 analog inputs, 70 analog values, 9 binary inputs, 80 binary values, 21 multi-state values. The exact set on a given unit depends on its firmware, installed options and configuration.
Which Daikin Applied EWAT-B-C / EWAF-B-C air-cooled chiller (Daikin Applied Europe) BACnet points are writable?
39 of the 205 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 EWAT-B-C / EWAF-B-C air-cooled chiller (Daikin Applied Europe) BACnet documentation?
The source is BAS Integration guide - BACnet protocol (EWA(F)T-B-C) (D-EIGOC00107-24_04EN), revision 2024, published free by Daikin Applied at https://www.daikinapplied.eu/hubfs/portale-documentale/D_EIGOC00107_24_04EN_EWA_F_T_B_C.pdf.
What are the minimum BACnet points to integrate the Daikin Applied EWAT-B-C / EWAF-B-C air-cooled chiller (Daikin Applied Europe)?
Start with BV 2 UnitEnableStp (Network enable/disable of the chiller); MV 3 UnitModeSetpointNetwork (Ice / cool / heat / pursuit mode command); AV 4 NetworkCoolTempSetpoint (Leaving water cool setpoint from the BMS); AV 3 NetworkCapacityLimitSetpoint (Capacity limit from the BMS); BV 8 ClearAlarm (Clear alarms from the network); BI 3 CtrlSource (Shows whether network control is active); MV 1 UnitStatus (Chiller run state); AI 2 EvapLvgWTemp (Leaving chilled water temperature); MV 54 U'ShutdownAlm (Unit shutdown alarm (1 = Alarm)); AV 905 AVFaultAlarmCode (Active fault alarm code).
How do I enable BMS control of the Daikin Applied EWAT-B-C / EWAF-B-C air-cooled chiller (Daikin Applied Europe)?
CtrlSource (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. With network control active the BMS writes UnitEnableStp (BV 2) = Enable, then the mode (MV 3) and network setpoints.
Can the BMS supply sensor values to the Daikin Applied EWAT-B-C / EWAF-B-C air-cooled chiller (Daikin Applied Europe)?
VarFlow'LoadDPres (AI 1905, plant differential pressure) is marked writable for variable primary flow; the guide does not say whether the BMS must supply it.
How do I check these points on the real EWAT-B-C / EWAF-B-C air-cooled chiller (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
- Air handling unit controller
Daikin Applied ADK digital air handler, DSTREAM controls (Daikin Applied Europe)
Daikin Applied Europe ADK digital air handling units (D-AHU) with the MicroTech III or MicroTech 4 controller and DSTREAM control software.
Also known as: ADK, D-AHU, Digital AHU, Daikin D-AHU, DSTREAM, D-EIGOC00108-22_05 - VAV terminal unit controller
Daikin Applied Daikin VAV Controller (BACnet MS/TP)
Pressure-independent VAV terminal units (cooling only, reheat, series and parallel fan-powered) with the Daikin VAV actuator-controller.
Also known as: Daikin VAV controller, VAV Model 250802400, 250802400, BACnet VAV actuator, ED 19157 - Air-cooled screw chiller controller
Daikin Applied EWAD-TZD / EWAH-TZD / EWFD / EWFH air-cooled screw chiller (Daikin Applied Europe)
Daikin Applied Europe EWAD-TZD/MZD and EWAH-TZD/MZD air-cooled inverter screw chillers and the EWFD/EWFH free-cooling versions (MicroTech 4, software "ETRA / OMEGA").
Also known as: EWAD-TZD, EWAD-MZD, EWAH-TZD, EWAH-MZD, EWFD-TZD, EWFH-TZD, EWAD TZ, EWAD/H-T/MZD, EWFD/H-T/MZD, ETRA, OMEGA, D-EIGOC00103-23_01 - Air-cooled scroll chiller controller
Daikin Applied EWAT-B air-cooled chiller (Daikin Applied Europe)
Daikin Applied Europe EWAT-B air-cooled scroll chillers (MicroTech 4, software "NASH"), including the free-cooling and heat recovery options.
Also known as: EWAT-B, EWAT B, EWAT-B-SS, EWAT-B-SL, EWAT-B-SR, EWAT-B-XS, EWAT-B-XL, EWAT-B-XR, NASH, D-EIGOC00103 - Water-cooled screw chiller controller
Daikin Applied EWWD-VZ water-cooled screw chiller (Daikin Applied Europe)
Daikin Applied Europe EWWD-VZ, EWWH-VZ and EWWS-VZ water-cooled inverter screw chillers (MicroTech, software "Adam").
Also known as: EWWD VZ, EWWH-VZ, EWWS-VZ, EWWD(H)(S)_VZ, Adam, D-EIGOC00101 - Air-to-water heat pump controller
Daikin Applied EWYT-B air-to-water heat pump (Daikin Applied Europe)
Daikin Applied Europe EWYT-B reversible air-to-water scroll heat pumps (MicroTech 4, software "NASH_HP").
Also known as: EWYT-B, EWYT B, EWYT-B-SS, EWYT-B-SL, EWYT-B-SR, EWYT-B-XS, EWYT-B-XL, EWYT-B-XR, NASH_HP, D-EIGOC00107-23_01 - Chiller plant manager (multi-chiller sequencer)
Daikin Applied iCM chiller plant manager, option 184 (Daikin Applied Europe)
Daikin Applied Europe chiller plants run by the iCM software (option 184) on the master MicroTech 4 chiller: a master plus up to seven slave chillers, with optional pump (iPM), cooling tower (iCT) and pump group (iSM) management.
Also known as: iCM, Option 184, iCM option 184, Intelligent Chiller Manager, iCM Standard, iCM Advanced, iCM Expanded, iPM, iCT, iSM, D-EIGOC00110-21_03 - Chiller controller
Daikin Applied Magnitude WME C-vintage Chiller (MicroTech WME controller)
Magnitude WME C-vintage magnetic-bearing centrifugal chillers with the MicroTech WME unit controller.
Also known as: WME-C, Magnitude WME, MicroTech WME, ED 19111 - Rooftop unit controller
Daikin Applied MicroTech 4 Rebel Applied Rooftop Unit Controller
Daikin Rebel Applied (DPSA) packaged rooftop units with the MicroTech 4 unit controller.
Also known as: Rebel Applied, DPSA, MicroTech 4 AHU, MT4 AHU, MT4_AHU, ED 19117 - Chiller controller
Daikin Applied MicroTech Chiller Controller (Trailblazer AGZ-F, Magnitude WMC-E, WMT)
Trailblazer AGZ F-vintage air-cooled scroll chillers and Magnitude WMC-E and WMT magnetic-bearing centrifugal chillers.
Also known as: AGZ-F, Trailblazer AGZ F-vintage, WMC-E, WMT, Magnitude WMT, ED 19131 - Chiller controller
Daikin Applied MicroTech Chiller Unit Controller (Pathfinder, Trailblazer, Magnitude WME-B, Navigator)
Air-cooled scroll (AGZ-D/E, AMZ), air-cooled screw (AWS, AWV, ADS), WME B-vintage magnetic-bearing and WWV water-cooled screw chillers.
Also known as: MicroTech III chiller, Pathfinder AWS, Pathfinder AWV, Trailblazer AGZ, Trailblazer AMZ, ADS, Magnitude WME B-vintage, Navigator WWV, ED 15120 - Water source heat pump DOAS controller
Daikin Applied MicroTech DOAS WSHP Unit Controller
Daikin SmartSource DOAS water source heat pumps with the MicroTech unit controller and its on-board BACnet MS/TP port.
Also known as: SmartSource DOAS, DOAS water source heat pump, MTUC_DOAS WSHP, ED 19118 - Rooftop unit / AHU controller
Daikin Applied MicroTech III Applied Rooftop and Self-Contained Unit Controller
Rebel (DPS/DPH), Maverick (MPS), RoofPak rooftops and air handlers (RPS, RDT, RFS, RDS, RAH, RPE, RDE) and SWP/SWT self-contained units.
Also known as: MicroTech III AHU, RoofPak, Rebel DPS, Maverick MPS, RPS, RDT, RFS, RDS, RAH, RPE, RDE, SWP, SWT, ED 15112 - Fan coil unit controller
Daikin Applied MicroTech III Fan Coil Unit Controller
Daikin Applied fan coil units with the MicroTech III unit controller and the plug-in BACnet MS/TP communication module.
Also known as: MicroTech III FCU, MTIIIUC_FCU, Applied Terminal Systems fan coil, ED 15135 - Water source heat pump controller
Daikin Applied MicroTech III WSHP Controller - Enfinity Single Stage
Enfinity single-stage compressor water source heat pumps (MHC/MHW, CCH/CCW, VFC/VFW, LVC/LVW, VHC/VHF).
Also known as: Enfinity, MHC, MHW, CCH, CCW, VFC, VFW, LVC, LVW, VHC, VHF, MicroTech III water source heat pump, ED 15103 - Water source heat pump controller
Daikin Applied MicroTech III WSHP Controller - SmartSource / Enfinity Large Two Compressor
SmartSource single and two-stage (GSH/GSV, GTH/GTV, GCV/GCH) and Enfinity Large two-compressor (CCH/CCW, LVC/LVW) heat pumps.
Also known as: SmartSource, GSH, GSV, GTH, GTV, GCV, GCH, Enfinity Large, CCH, CCW, LVC, LVW, ED 15103 - Air handler unit controller
Daikin Applied MicroTech PreciseLine Light Air Handler Controller
PreciseLine light commercial air handlers (BCV, BCA, BCH; 600-10,000 CFM) with the MicroTech 4 Lite controller, including R-410A D-Kit and R-32 EV-kit VRV units.
Also known as: PreciseLine, MicroTech 4 Lite, MT4 Lite AHU, PL AHU, BCV, BCA, BCH, ED 19126 - Unit ventilator controller (classroom air handler)
Daikin Applied MicroTech Unit Ventilator Controller
Daikin Applied unit ventilators with the MicroTech UV unit controller and its on-board BACnet MS/TP port.
Also known as: MicroTech UV, MTUC_UV, Daikin unit ventilator, ED 19110 - EC fan array controller (air handler)
Daikin Applied MicroTech Vision / Skyline EC Fan Array Controller
Vision (CAH/CAC) and Skyline (OAH/OAC) air handlers with an EC fan array on the MicroTech 4 fan controller (Premium controls option), up to 20 fans.
Also known as: Vision, Skyline, MT4_DFA_EC, MT4_DFA, CAH, CAC, OAH, OAC, EC fan array, ED 19122 - Air handling unit controller
Daikin Applied Modular Light (ALB) air handler, EvoLVE controls (Daikin Applied Europe)
Daikin Applied Europe Modular Light (ALB) compact air handling units with the MicroTech controller and EvoLVE / Airstream control software.
Also known as: Modular Light, ALB, Daikin Modular Light AHU, EvoLVE, Airstream, D-EIGOC00106-26_00
Source: BAS Integration guide - BACnet protocol (EWA(F)T-B-C) · D-EIGOC00107-24_04EN · rev. 2024. Object names, instances and units are reproduced as published; descriptions are our own.