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Magnetic bearing centrifugal chiller controller · BACnet points list

Daikin Applied Magnitude WME single-compressor chiller (2010 McQuay unit controller) BACnet points list

Updated 6 November 2026

Short answer

The 2010 Magnitude chiller unit controller on single-compressor WME chillers exposes 55 BACnet objects through a BACnet IP, BACnet Ethernet or BACnet MS/TP communication module (LonWorks is the other option). The list covers network enable, mode, cool/heat/ice setpoints and capacity limit, water temperatures and flows, compressor current, voltage, power and refrigerant data, pump status and run hours, and three alarm-number values.

This page lists 55 BACnet objects for the Daikin Applied Magnitude WME single-compressor chiller (2010 McQuay unit controller) — 8 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
Magnitude WME single-compressor chiller (2010 McQuay unit controller)
Equipment
Magnetic bearing centrifugal chiller controller
Equipment type
Chillers
BACnet objects
55 (8 writable)
Transport
BACnet IP, BACnet MS/TP
Firmware
Not stated
Default device instance
30003
Also known as
ED 15117, Magnitude WME, WME, McQuay Magnitude, Magnitude Chiller Unit Controller
Source document
Magnitude Chiller Unit Controller Protocol Information, BACnet Networks (MS/TP, IP, Ethernet), LonWorks Networks · ED 15117 · rev. 2010-04
Download CSV 55 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 Magnitude WME single-compressor chiller (2010 McQuay unit controller)

Integration in brief

At the chiller touch screen set the BAS protocol and then Control Source to BAS. The BMS enables the chiller with ChillerEnableStp, writes mode, cool setpoint and capacity limit, and reads status, water temperatures, the alarm output and the fault alarm number.

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 chillerWrite
MV 3ChillerOperationModeIce / cool / heat mode commandWrite
AV 4NetworkCoolTempSetpointLeaving water cool setpoint from the BMSWrite
AV 3NetworkCapacityLimitPctCapacity limit from the BMSWrite
BV 8ClearAlarmClear alarms from the networkWrite
BI 3ChillerLocalNetworkShows whether network control is activeRead
MV 1UnitStatusChiller run stateRead
AI 2LvgEvapWaterTempUnitLeaving chilled water temperatureRead
BI 10AlarmDigitalOutputAny active alarmRead
AV 901AVFaultAlarmHighest active fault alarm numberRead

Enable & remote start

On the OITS panel set Control Source to USER, choose the BAS protocol on the SET/BAS screen, check the chiller runs, then set Control Source to BAS. The BMS then writes ChillerEnableStp (BV 2) and the network mode and setpoints.

Network setup

Watch out for

Daikin Applied Magnitude WME single-compressor chiller (2010 McQuay unit controller) 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.

55 of 55 shown
Type
Multi-state
Access
Show
Daikin Applied Magnitude WME single-compressor chiller (2010 McQuay unit controller) BACnet Points List
DescriptionStates
AV5ActiveLvgWaterTargetActive Setpoint°FRead
AV2ChillerCapacityActual Capacity%Read
AV1ActiveCapacityLimitActive Capacity Limit (Output)%Read
AVmin3NetworkCapacityLimitPctCapacity Limit Setpoint - Network (default 100%)%Write
BI7ChillerEnableChiller Enable OutputRead0=Disable, 1=Enable
BVmin2ChillerEnableStpChiller Enable SetpointWrite0=Disable, 1=Enable
BI6ChillerLimitedChiller Capacity LimitedRead0=Not Limited, 1=Limited
BImin3ChillerLocalNetworkChiller Local/NetworkRead0=Network, 1=Local
MV2ActiveModeChiller Mode OutputRead1=Ice, 2=Cool, 3=Heat
MVmin3ChillerOperationModeChiller Mode Setpoint - NetworkWrite1=Ice, 2=Cool, 3=Heat
BI4UnitOFFChiller On OffRead0=Chiller Off, 1=Chiller On
MVmin1UnitStatusChiller Status BACnetRead1=Off, 2=Start, 3=Run, 4=Preshutdown, 5=Service
AI9C1Comp1CurrentCompressor Average CurrentARead
AI81C1Comp1DischRefPressureCompressor Discharge Refrigerant PressurepsiRead
AI63C1Comp1DischargeTempCompressor Discharge Refrigerant Temperature°FRead
AV26C1Comp1DischSatRefTempCompressor Discharge Saturated Refrigerant Temperature°FRead
AV8C1Comp1MotorCurrentPercentCompressor Percent RLA% RLARead
AI45C1Comp1KilowattsCompressor PowerkWRead
AV74C1Comp1HoursCompressor Run HoursRead
AV92C1Comp1StartsCompressor StartsRead
AI105C1Comp1SuctionTempCompressor Suction Refrigerant Temperature°FRead
AI27C1Comp1VoltageCompressor Average VoltageVRead
AI3EntCondWaterTempCondenser Entering Water Temperature°FRead
BI1CondWaterFlowStatusCondenser Flow Switch StatusRead0=No Flow, 1=Flow
AI4LvgCondWaterTempCondenser Leaving Water Temperature°FRead
AV110CondPump1RunHoursCondenser Pump #1 Run HoursRead
AV111CondPump2RunHoursCondenser Pump #2 Run HoursRead
AI99Cond1RefPressureCondenser Refrigerant PressurepsiRead
AV44Cond1SatRefTempCondenser Saturated Refrigerant Temperature°FRead
AI123C1Comp1SuctionPressureCompressor Suction Refrigerant PressurepsiRead
AV50C1Comp1SuctSatTempCompressor Suction Saturated Refrigerant Temperature°FRead
AI147CondWaterFlowRateCondenser Water Flow RategpmRead
BI11CondPump1StateCondenser Pump #1 StatusRead0=Pump Off Request, 1=Pump On Request
BI12CondPump2StateCondenser Pump #2 StatusRead0=Pump Off Request, 1=Pump On Request
AVmin4NetworkCoolTempSetpointCool Setpoint - Network (default 44°F)°FWrite
AI1EntEvapWaterTempEvaporator Entering Water Temperature°FRead
BI2EvapWaterFlowStatusEvaporator Flow Switch StatusRead0=No Flow, 1=Flow
AImin2LvgEvapWaterTempUnitEvaporator Leaving Water Temperature°FRead
AV112EvapPump1OperHoursEvaporator Pump #1 Run HoursRead
AV113EvapPump2OperHoursEvaporator Pump #2 Run HoursRead
AI148EvapWaterFlowRateEvaporator Water Flow RategpmRead
BI8EvapPump1StateEvaporator Pump #1 StatusRead0=Pump Off Request, 1=Pump On Request
BI9EvapPump2StateEvaporator Pump #2 StatusRead0=Pump Off Request, 1=Pump On Request
AI149HeatRecEntWaterTempHeat Recovery Entering Water Temperature°FRead
AI150HeatRecLvgWaterTempHeat Recovery Leaving Water Temperature°FRead
AV6NetworkHeatTempSetpointHeat Setpoint - Network (default 134.96°F)°FWrite
AV7NetworkIceTempSetpointIce Setpoint - Network (default 25°F)°FWrite
AI5OutdoorAirTempOutdoor Air Temperature°FRead
BI5UnitOFFRun EnabledRead0=OFF, 1=Run Allowed
MV4UnitsUnitsWrite1=English(IP), 2=Metric(SI)
BImin10AlarmDigitalOutputAlarm Digital OutputRead0=No Alarm, 1=Alarm
AVmin901AVFaultAlarmHighest active fault alarm number (0 = none)Read
AV900AVProblemAlarmHighest active problem alarm number (0 = none)Read
AV902AVWarningAlarmHighest active warning alarm number (0 = none)Read
BVmin8ClearAlarmClear Alarm NetworkWrite0=Normal (Default), 1=Clear Alarm
Object ID lookup: Daikin Applied Magnitude WME (2010) 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 Magnitude WME single-compressor chiller (2010 McQuay unit controller) 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 Magnitude WME single-compressor chiller (2010 McQuay unit controller)

How many BACnet points does the Daikin Applied Magnitude WME single-compressor chiller (2010 McQuay unit controller) have?

This list has 55 BACnet objects: 17 analog inputs, 20 analog values, 12 binary inputs, 2 binary values, 4 multi-state values. The exact set on a given unit depends on its firmware, installed options and configuration.

Which Daikin Applied Magnitude WME single-compressor chiller (2010 McQuay unit controller) BACnet points are writable?

8 of the 55 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 Magnitude WME single-compressor chiller (2010 McQuay unit controller) BACnet documentation?

The source is Magnitude Chiller Unit Controller Protocol Information, BACnet Networks (MS/TP, IP, Ethernet), LonWorks Networks (ED 15117), revision 2010-04, published free by Daikin Applied at https://tahoeweb.daikinapplied.com/api/general/DownloadDocumentByName/media/ED15117.pdf.

What are the minimum BACnet points to integrate the Daikin Applied Magnitude WME single-compressor chiller (2010 McQuay unit controller)?

Start with BV 2 ChillerEnableStp (Network enable/disable of the chiller); MV 3 ChillerOperationMode (Ice / cool / heat mode command); AV 4 NetworkCoolTempSetpoint (Leaving water cool setpoint from the BMS); AV 3 NetworkCapacityLimitPct (Capacity limit from the BMS); BV 8 ClearAlarm (Clear alarms from the network); BI 3 ChillerLocalNetwork (Shows whether network control is active); MV 1 UnitStatus (Chiller run state); AI 2 LvgEvapWaterTempUnit (Leaving chilled water temperature); BI 10 AlarmDigitalOutput (Any active alarm); AV 901 AVFaultAlarm (Highest active fault alarm number).

How do I enable BMS control of the Daikin Applied Magnitude WME single-compressor chiller (2010 McQuay unit controller)?

On the OITS panel set Control Source to USER, choose the BAS protocol on the SET/BAS screen, check the chiller runs, then set Control Source to BAS. The BMS then writes ChillerEnableStp (BV 2) and the network mode and setpoints.

How do I check these points on the real Magnitude WME single-compressor chiller (2010 McQuay unit controller)?

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: Magnitude Chiller Unit Controller Protocol Information, BACnet Networks (MS/TP, IP, Ethernet), LonWorks Networks · ED 15117 · rev. 2010-04. Object names, instances and units are reproduced as published; descriptions are our own.