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MicroTech II Chiller Unit Controller

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Daikin Applied MicroTech II Chiller Unit Controller BACnet points list

Updated 4 November 2026

Short answer

The MicroTech II chiller unit controller connects to BACnet MS/TP or BACnet IP/Ethernet through a BACnet communication module (a LonWorks module also exists). The object list is the same for both: enable, mode, cool/heat/ice setpoints and capacity limit commands, water temperatures and flows, chiller status and mode, refrigerant and oil data per compressor, compressor current/power/voltage, run hours and starts, pump status and alarm objects. Which objects return data depends on the chiller model; a model-support matrix in the doc shows which.

This page lists 128 BACnet objects for the Daikin Applied MicroTech II Chiller Unit Controller — 9 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: MicroTech II Chiller Unit Controller
Equipment: Chiller controller
Equipment type: Chillers
BACnet objects: 128 (9 writable)
Transport: BACnet IP, BACnet MS/TP
Firmware: Not stated
Default device instance: 3000
Also known as: MicroTech II chiller, MTII Chiller UC, WSC, WDC, WPV, HSC, HDC, TSC, WMC, WCC, AGZ, ACZ, AGS, WGZ, TGZ, WGS, ED 15062, ED 15100
Source document: MicroTech II Chiller Unit Controller Protocol Information (LonWorks, BACnet MS/TP) · ED 15062-9 · rev. 2022-08

Download CSV 128 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 MicroTech II Chiller Unit Controller

Integration in brief

Set the chiller's control source to the network (BAS) at the keypad or touch screen, then write ChillerEnable, the operating mode, the cool setpoint and the capacity limit. Read UnitStatus, ActiveMode, water temperatures, capacity and AlarmDigitalOutput, and use ClearAlarm for clearable alarms.

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 41	ChillerEnable	Enable (1) / disable (0) the chiller	Write
MO 45	ChillerOperationMode	Mode command: 1=Ice, 2=Cool, 3=Heat	Write
AO 29	NetworkCoolTempSetpoint	Leaving chilled water setpoint	Write
AO 32	NetworkCapacityLimitPct	Capacity limit from the BMS, %	Write
MI 43	UnitStatus	Off/Start/Run/Pre-shutdown/Service	Read
BI 38	ChillerLocalRemote	Reads Remote (0) when network control is allowed	Read
AI 2	LvgEvapWaterTempUnit	Leaving chilled water temperature	Read
AI 1	EntEvapWaterTemp	Entering chilled water temperature	Read
AI 9	ChillerCapacity	Running capacity, %	Read
BI 40	AlarmDigitalOutput	Any active alarm	Read

Enable & remote start

Disable the chiller, set the protocol to the BAS network at the user interface, then set the setpoint source to Network (on centrifugals, Control Source = BAS on the SETPOINTS/MODE screen, password 2001; other models use the passwords in the doc's table). Re-enable the chiller; ChillerEnable (BV 41) then starts and stops it.

Heartbeat & communication loss

The receive-heartbeat and default-value behaviour described in the doc applies to the LonWorks interface only. No BACnet heartbeat point is listed.

Network setup

MS/TP defaults: device instance 3000, MAC 18, 38400 baud, Max Master 127, Max Info Frames 20; set with Daikin's BACnet Configuration Tool and cycle power afterwards.
IP module defaults: 172.16.5.8, mask 255.255.0.0, UDP 47808, device instance 3000; settings are changed in the module's web configuration interface (IM 837).
Device name is MTII Chiller UC plus the device instance; changing the instance changes every object's full reference.
Use CompSelect (MO 46) and PumpSelect (MO 47) to choose which compressor or pump the 'selected' objects report.

Watch out for

ClearAlarm (BV 42) can't clear shutdown faults on centrifugals such as low evaporator pressure, high condenser pressure, low oil pressure, freeze protection and high motor temperature; on other models only the flow-loss alarm can be cleared remotely.
Run-hour objects report hours divided by 10.
The heat setpoint is ignored while the chiller is in cool mode.
Many objects only return data on certain chiller types; check the model-support table before mapping.

Daikin Applied MicroTech II Chiller 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.

128 of 128 shown

Type

Access

Units

Show

Daikin Applied MicroTech II Chiller Unit Controller BACnet Points List
			Description			States
AI	7	ActiveLvgWaterTarget	Active Setpoint	°F	Read
AImin	9	ChillerCapacity	Actual Capacity	%	Read
AI	56	Comp1ActualRPM	Actual RPM, compressor 1	RPM	Read
AI	60	Comp2ActualRPM	Actual RPM, compressor 2	RPM	Read
AI	8	ActiveCapacityLimit	Capacity Limit Output	%	Read
AI	67	TotalChillerKW	Total chiller kW (doc prints range as 0-160%)		Read
AI	88	Comp2ActiveCapLimit	Compressor 2 Active Capacity Limit	%	Read
AI	80	Comp2Speed	Compressor 2 VFD Speed	%	Read
AI	51	Current	Compressor Current, compressor chosen by CompSelect	A	Read
AI	76	Comp2Current	Compressor Current, compressor 2	A	Read
AI	95	Comp3Current	Compressor Current, compressor 3	A	Read
AI	103	Comp4Current	Compressor Current, compressor 4	A	Read
AI	111	Comp5Current	Compressor Current, compressor 5	A	Read
AI	117	Comp6Current	Compressor Current, compressor 6	A	Read
AI	18	DischargeTemp	Compressor Discharge Temperature, compressor chosen by CompSelect	°F	Read
AI	72	Comp2DischargeTmp	Compressor Discharge Temperature, compressor 2	°F	Read
AI	24	CompMotorCurrentPercent	Compressor Percent RLA, compressor chosen by CompSelect	%	Read
AI	75	Comp2CurrentPercent	Compressor Percent RLA, compressor 2	%	Read
AI	94	Comp3CurrentPercent	Compressor Percent RLA, compressor 3	%	Read
AI	102	Comp4CurrentPercent	Compressor Percent RLA, compressor 4	%	Read
AI	110	Comp5CurrentPercent	Compressor Percent RLA, compressor 5	%	Read
AI	116	Comp6CurrentPercent	Compressor Percent RLA, compressor 6	%	Read
AI	54	Kilowatts	Compressor Power, compressor chosen by CompSelect	kW	Read
AI	77	Comp2Kilowatts	Compressor Power, compressor 2	kW	Read
AI	96	Comp3Kilowatts	Compressor Power, compressor 3	kW	Read
AI	104	Comp4Kilowatts	Compressor Power, compressor 4	kW	Read
AI	112	Comp5Kilowatts	Compressor Power, compressor 5	kW	Read
AI	118	Comp6Kilowatts	Compressor Power, compressor 6	kW	Read
AI	26	CompHours	Compressor Run Hours, compressor chosen by CompSelect (reads hours/10)	h	Read
AI	93	Comp2Hours	Compressor Run Hours, compressor 2 (reads hours/10)	h	Read
AI	101	Comp3Hours	Compressor Run Hours, compressor 3 (reads hours/10)	h	Read
AI	109	Comp4Hours	Compressor Run Hours, compressor 4 (reads hours/10)	h	Read
AI	25	CompStarts	Compressor Starts, compressor chosen by CompSelect		Read
AI	92	Comp2Starts	Compressor Starts, compressor 2		Read
AI	100	Comp3Starts	Compressor Starts, compressor 3		Read
AI	108	Comp4Starts	Compressor Starts, compressor 4		Read
AI	123	CompressorStatus	Compressor Status, compressor chosen by CompSelect		Read	0=Off, 1=Start Oil Pump, 2=Interlock/Prelube, 3=Run, 4=Shutdown, 5=Postlube
AI	91	Comp2Status	Compressor Status, compressor 2		Read	0=Off, 1=Start Oil Pump, 2=Interlock/Prelube, 3=Run, 4=Shutdown, 5=Postlube
AI	99	Comp3Status	Compressor Status, compressor 3		Read	0=Off, 1=Start Oil Pump, 2=Interlock/Prelube, 3=Run, 4=Shutdown, 5=Postlube
AI	107	Comp4Status	Compressor Status, compressor 4		Read	0=Off, 1=Start Oil Pump, 2=Interlock/Prelube, 3=Run, 4=Shutdown, 5=Postlube
AI	115	Comp5Status	Compressor Status, compressor 5		Read	0=Off, 1=Start Oil Pump, 2=Interlock/Prelube, 3=Run, 4=Shutdown, 5=Postlube
AI	121	Comp6Status	Compressor Status, compressor 6		Read	0=Off, 1=Start Oil Pump, 2=Interlock/Prelube, 3=Run, 4=Shutdown, 5=Postlube
AI	15	SuctionTemp	Compressor Suction Line Temperature, compressor chosen by CompSelect	°F	Read
AI	69	Comp2SuctTemp	Compressor Suction Line Temperature, compressor 2	°F	Read
AI	52	Voltage	Compressor Voltage, compressor chosen by CompSelect	V	Read
AI	79	Comp2Voltage	Compressor Voltage, compressor 2	V	Read
AI	98	Comp3Voltage	Compressor Voltage, compressor 3	V	Read
AI	106	Comp4Voltage	Compressor Voltage, compressor 4	V	Read
AI	114	Comp5Voltage	Compressor Voltage, compressor 5	V	Read
AI	120	Comp6Voltage	Compressor Voltage, compressor 6	V	Read
AI	3	EntCondWaterTemp	Condenser Entering Water Temperature	°F	Read
AI	4	LvgCondWaterTemp	Condenser Leaving Water Temperature	°F	Read
AI	28	CondPumpOperHours	Condenser Pump Run Hours, pump chosen by PumpSelect (reads hours/10)	h	Read
AI	90	CondPmp2Hrs	Condenser Pump Run Hours, pump 2 (reads hours/10)	h	Read
AI	16	CondPressure	Condenser Refrigerant Pressure, compressor chosen by CompSelect	psi	Read
AI	74	Comp2CondPress	Condenser Refrigerant Pressure, compressor 2	psi	Read
AI	17	CondSatTemp	Condenser Saturated Refrigerant Temperature, compressor chosen by CompSelect	°F	Read
AI	73	Comp2CondSatTemp	Condenser Saturated Refrigerant Temperature, compressor 2	°F	Read
AI	50	CondWaterFlowRate	Condenser Water Flow Rate	GPM	Read
AI	63	Comp1DesignRPM	Design RPM, compressor 1	RPM	Read
AI	64	Comp2DesignRPM	Design RPM, compressor 2	RPM	Read
AImin	1	EntEvapWaterTemp	Evaporator Entering Water Temperature	°F	Read
AImin	2	LvgEvapWaterTempUnit	Evaporator Leaving Water Temperature for Unit	°F	Read
AI	23	LvgEvapWaterTempComp	Evaporator Leaving Water Temperature for Compressor, compressor chosen by CompSelect	°F	Read
AI	68	Comp2EvapLvgWTmp	Evaporator Leaving Water Temperature for Compressor, compressor 2	°F	Read
AI	27	EvapPumpOperHours	Evaporator Pump Run Hours, pump chosen by PumpSelect (reads hours/10)	h	Read
AI	89	EvapPmp2Hrs	Evaporator Pump Run Hours, pump 2 (reads hours/10)	h	Read
AI	13	EvapPressure	Evaporator Refrigerant Pressure, compressor chosen by CompSelect	psi	Read
AI	71	Comp2EvapPress	Evaporator Refrigerant Pressure, compressor 2	psi	Read
AI	14	EvapSatTemp	Evaporator Saturated Refrigerant Temperature, compressor chosen by CompSelect	°F	Read
AI	70	Comp2EvapSatRTmp	Evaporator Saturated Refrigerant Temperature, compressor 2	°F	Read
AI	49	EvapWaterFlowRate	Evaporator Water Flow Rate	GPM	Read
AI	5	HeatRecEntWaterTemp	Heat Recovery Entering Water Temperature	°F	Read
AI	6	HeatRecLvgWaterTemp	Heat Recovery Leaving Water Temperature	°F	Read
AI	58	Comp1IGVPercentOpen	IGV Percentage Open, compressor 1	%	Read
AI	62	Comp2IGVPercentOpen	IGV Percentage Open, compressor 2	%	Read
AI	66	Comp1InverterTmp	Inverter Temperature, compressor 1	°F	Read
AI	87	Comp2InverterTmp	Inverter Temperature, compressor 2	°F	Read
AI	12	LiquidLinePress	Liquid Line Refrigerant Pressure	psi	Read
AI	11	LiquidLineTemp	Liquid Line Refrigerant Temperature, compressor chosen by CompSelect	°F	Read
AI	85	Comp2LiqLineTemp	Liquid Line Refrigerant Temperature, compressor 2	°F	Read
AI	55	Comp1MaxRPM	Maximum RPM, compressor 1	RPM	Read
AI	59	Comp2MaxRPM	Maximum RPM, compressor 2	RPM	Read
AI	57	Comp1MinRPM	Minimum RPM, compressor 1	RPM	Read
AI	61	Comp2MinRPM	Minimum RPM, compressor 2	RPM	Read
AI	65	Comp1MotorCavityTmp	Motor Cavity Temperature, compressor 1	°F	Read
AI	86	Comp2MotorCavityTmp	Motor Cavity Temperature, compressor 2	°F	Read
AI	19	OilFeedPressure	Oil Feed Pressure, compressor chosen by CompSelect	psi	Read
AI	81	Comp2OilFeedPress	Oil Feed Pressure, compressor 2	psi	Read
AI	21	OilFeedTemp	Oil Feed Temperature, compressor chosen by CompSelect	°F	Read
AI	83	Comp2OilFeedTemp	Oil Feed Temperature, compressor 2	°F	Read
AI	20	OilSumpPressure	Oil Sump Pressure, compressor chosen by CompSelect	psi	Read
AI	82	Comp2OilFeedPress	Oil Sump Pressure, compressor 2	psi	Read
AI	22	OilSumpTemp	Oil Sump Temperature, compressor chosen by CompSelect	°F	Read
AI	84	Comp2OilSumpTemp	Oil Sump Temperature, compressor 2	°F	Read
AI	10	OutdoorAirTemp	Outdoor Air Temperature	°F	Read
AI	53	PowerFactor	Power factor x100, compressor chosen by CompSelect		Read
AI	78	Comp2PowerFactor	Power factor x100, compressor 2		Read
AI	97	Comp3PowerFactor	Power factor x100, compressor 3		Read
AI	105	Comp4PowerFactor	Power factor x100, compressor 4		Read
AI	113	Comp5PowerFactor	Power factor x100, compressor 5		Read
AI	119	Comp6PowerFactor	Power factor x100, compressor 6		Read
AOmin	32	NetworkCapacityLimitPct	Capacity Limit Setpoint	%	Write
AOmin	29	NetworkCoolTempSetpoint	Cool Setpoint	°F	Write
AO	31	NetworkHeatTempSetpoint	Heat Setpoint	°F	Write
AO	30	NetworkIceTempSetpoint	Ice Setpoint	°F	Write
BImin	40	AlarmDigitalOutput	Alarm Digital Output		Read	0=No Alarm, 1=Alarm
BI	39	ChillerLimited	Chiller Limited		Read	0=Not Limited (Inactive), 1=Limited (Active)
BImin	38	ChillerLocalRemote	Chiller Local/Remote		Read	0=Remote, 1=Local
BI	35	CondWaterFlowStatus	Condenser Flow Switch Status		Read	0=No Flow (Inactive), 1=Flow (Active)
BI	37	CondPumpState	Condenser Water Pump Status		Read	0=OFF (Inactive), 1=ON (Active)
BI	34	EvapWaterFlowStatus	Evaporator Flow Switch Status		Read	0=No Flow (Inactive), 1=Flow (Active)
BI	36	EvapPumpState	Evaporator Water Pump Status		Read	0=OFF (Inactive), 1=ON (Active)
BI	33	UnitOFF	Run Enabled		Read	0=Off (Inactive), 1=Run Allowed (Active)
BVmin	41	ChillerEnable	Chiller Enable		Write	0=OFF (Disable), 1=ON (Enable)
BV	42	ClearAlarm	Clear Alarm		Write	0=Normal, 1=Clear Alarm
MI	44	ActiveMode	Chiller Mode Output		Read	1=Ice, 2=Cool, 3=Heat
MImin	43	UnitStatus	Chiller Status		Read	1=Off, 2=Start, 3=Run, 4=Pre-shutdown, 5=Service
MI	48	DaikinChillerType	Chiller Type		Read	1=AGZS, 2=AGZD, 3=WGZD/TGZD, 4=WSC/WDC, 5=AGSU, 6=ACZS, 7=ACZD, 8=WMC, 9=WGSD, 10=AGSD, 11=AGZS, 12=AGZDU, 13=WGZU, 14=ACZSU, 15=ACZDU
MOmin	45	ChillerOperationMode	Chiller Mode Setpoint		Write	1=Ice, 2=Cool, 3=Heat
MO	46	CompSelect	Compressor Select		Write	1-6 = compressor number
MO	47	PumpSelect	Pump Select		Write	1=Pump 1, 2=Pump 2
AI	901	AIFaultAlarm	Fault Alarms index number (analog form)		Read
MI	901	MSIFaultAlarm	Fault Alarms index number (multistate form)		Read
AI	900	AIProblemAlarm	Problem Alarms index number (analog form)		Read
MI	900	MSIProblemAlarm	Problem Alarms index number (multistate form)		Read
AI	902	AIWarningAlarm	Warning Alarms index number (analog form)		Read
MI	902	MSIWarningAlarm	Warning Alarms index number (multistate form)		Read

Object ID lookup: Daikin Applied MicroTech II Chiller Unit Controller point IDs by name

AI7ActiveLvgWaterTarget
AI9ChillerCapacity
AI56Comp1ActualRPM
AI60Comp2ActualRPM
AI8ActiveCapacityLimit
AI67TotalChillerKW
AI88Comp2ActiveCapLimit
AI80Comp2Speed
AI51Current
AI76Comp2Current
AI95Comp3Current
AI103Comp4Current
AI111Comp5Current
AI117Comp6Current
AI18DischargeTemp
AI72Comp2DischargeTmp
AI24CompMotorCurrentPercent
AI75Comp2CurrentPercent
AI94Comp3CurrentPercent
AI102Comp4CurrentPercent
AI110Comp5CurrentPercent
AI116Comp6CurrentPercent
AI54Kilowatts
AI77Comp2Kilowatts
AI96Comp3Kilowatts
AI104Comp4Kilowatts
AI112Comp5Kilowatts
AI118Comp6Kilowatts
AI26CompHours
AI93Comp2Hours
AI101Comp3Hours
AI109Comp4Hours
AI25CompStarts
AI92Comp2Starts
AI100Comp3Starts
AI108Comp4Starts
AI123CompressorStatus
AI91Comp2Status
AI99Comp3Status
AI107Comp4Status
AI115Comp5Status
AI121Comp6Status
AI15SuctionTemp
AI69Comp2SuctTemp
AI52Voltage
AI79Comp2Voltage
AI98Comp3Voltage
AI106Comp4Voltage
AI114Comp5Voltage
AI120Comp6Voltage
AI3EntCondWaterTemp
AI4LvgCondWaterTemp
AI28CondPumpOperHours
AI90CondPmp2Hrs
AI16CondPressure
AI74Comp2CondPress
AI17CondSatTemp
AI73Comp2CondSatTemp
AI50CondWaterFlowRate
AI63Comp1DesignRPM
AI64Comp2DesignRPM
AI1EntEvapWaterTemp
AI2LvgEvapWaterTempUnit
AI23LvgEvapWaterTempComp
AI68Comp2EvapLvgWTmp
AI27EvapPumpOperHours
AI89EvapPmp2Hrs
AI13EvapPressure
AI71Comp2EvapPress
AI14EvapSatTemp
AI70Comp2EvapSatRTmp
AI49EvapWaterFlowRate
AI5HeatRecEntWaterTemp
AI6HeatRecLvgWaterTemp
AI58Comp1IGVPercentOpen
AI62Comp2IGVPercentOpen
AI66Comp1InverterTmp
AI87Comp2InverterTmp
AI12LiquidLinePress
AI11LiquidLineTemp
AI85Comp2LiqLineTemp
AI55Comp1MaxRPM
AI59Comp2MaxRPM
AI57Comp1MinRPM
AI61Comp2MinRPM
AI65Comp1MotorCavityTmp
AI86Comp2MotorCavityTmp
AI19OilFeedPressure
AI81Comp2OilFeedPress
AI21OilFeedTemp
AI83Comp2OilFeedTemp
AI20OilSumpPressure
AI82Comp2OilFeedPress
AI22OilSumpTemp
AI84Comp2OilSumpTemp
AI10OutdoorAirTemp
AI53PowerFactor
AI78Comp2PowerFactor
AI97Comp3PowerFactor
AI105Comp4PowerFactor
AI113Comp5PowerFactor
AI119Comp6PowerFactor
AO32NetworkCapacityLimitPct
AO29NetworkCoolTempSetpoint
AO31NetworkHeatTempSetpoint
AO30NetworkIceTempSetpoint
BI40AlarmDigitalOutput
BI39ChillerLimited
BI38ChillerLocalRemote
BI35CondWaterFlowStatus
BI37CondPumpState
BI34EvapWaterFlowStatus
BI36EvapPumpState
BI33UnitOFF
BV41ChillerEnable
BV42ClearAlarm
MI44ActiveMode
MI43UnitStatus
MI48DaikinChillerType
MO45ChillerOperationMode
MO46CompSelect
MO47PumpSelect
AI901AIFaultAlarm
MI901MSIFaultAlarm
AI900AIProblemAlarm
MI900MSIProblemAlarm
AI902AIWarningAlarm
MI902MSIWarningAlarm

Integration notes

ED 15062-9 (BACnet MS/TP + LonWorks) and ED 15100-5 (BACnet IP/Ethernet) print the same 128 objects with the same instances and object names; the IP doc adds a Variable Index column for the web configuration interface.
Points that ask for 'the selected compressor' or 'the selected pump' return data for whatever CompSelect (MO 46) or PumpSelect (MO 47) is set to; other compressors and pumps also have their own fixed objects.
Run-hour values (compressor and pump hours) must be multiplied by 10 to get actual hours.
AI 82 (oil sump pressure, compressor 2) is printed with the object name Comp2OilFeedPress, the same as AI 81; kept as printed.
Ranges list both English and SI units; English units are shown here.
Object availability depends on chiller model (centrifugal, scroll, screw, Turbocor/WMC).

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 MicroTech II Chiller 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 MicroTech II Chiller Unit Controller

How many BACnet points does the Daikin Applied MicroTech II Chiller Unit Controller have?

This list has 128 BACnet objects: 105 analog inputs, 4 analog outputs, 8 binary inputs, 2 binary values, 6 multi-state inputs, 3 multi-state outputs. The exact set on a given unit depends on its firmware, installed options and configuration.

Which Daikin Applied MicroTech II Chiller Unit Controller BACnet points are writable?

9 of the 128 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 MicroTech II Chiller Unit Controller BACnet documentation?

The source is MicroTech II Chiller Unit Controller Protocol Information (LonWorks, BACnet MS/TP) (ED 15062-9), revision 2022-08, published free by Daikin Applied at https://tahoeweb.daikinapplied.com/api/general/DownloadDocumentByName/media/Daikin_ED_15062-9_MTII_Chiller_Unit_Controller_Protocol_Info_Tech_Sheet.pdf/.

What are the minimum BACnet points to integrate the Daikin Applied MicroTech II Chiller Unit Controller?

Start with BV 41 ChillerEnable (Enable (1) / disable (0) the chiller); MO 45 ChillerOperationMode (Mode command: 1=Ice, 2=Cool, 3=Heat); AO 29 NetworkCoolTempSetpoint (Leaving chilled water setpoint); AO 32 NetworkCapacityLimitPct (Capacity limit from the BMS, %); MI 43 UnitStatus (Off/Start/Run/Pre-shutdown/Service); BI 38 ChillerLocalRemote (Reads Remote (0) when network control is allowed); AI 2 LvgEvapWaterTempUnit (Leaving chilled water temperature); AI 1 EntEvapWaterTemp (Entering chilled water temperature); AI 9 ChillerCapacity (Running capacity, %); BI 40 AlarmDigitalOutput (Any active alarm).

How do I enable BMS control of the Daikin Applied MicroTech II Chiller Unit Controller?

Does the Daikin Applied MicroTech II Chiller Unit Controller need a BACnet heartbeat or have a communication timeout?

The receive-heartbeat and default-value behaviour described in the doc applies to the LonWorks interface only. No BACnet heartbeat point is listed.

How do I check these points on the real MicroTech II Chiller 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: MicroTech II Chiller Unit Controller Protocol Information (LonWorks, BACnet MS/TP) · ED 15062-9 · rev. 2022-08. Object names, instances and units are reproduced as published; descriptions are our own.

Daikin Applied MicroTech II Chiller Unit Controller BACnet points list

BMS integration notes: Daikin Applied MicroTech II Chiller Unit Controller

Minimum points to map

Enable & remote start

Heartbeat & communication loss

Network setup

Watch out for

Daikin Applied MicroTech II Chiller Unit Controller BACnet objects

Integration notes

Questions about the Daikin Applied MicroTech II Chiller Unit Controller

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