Easy BACnet
  1. Home
  2. BACnet points lists
  3. Intesis
  4. IN485DAI001A000 (Daikin Altherma 3 gateway, BACnet MS/TP)

Air-to-water heat pump BACnet gateway · BACnet points list

Intesis IN485DAI001A000 (Daikin Altherma 3 gateway, BACnet MS/TP) BACnet points list

Updated 4 November 2026

Short answer

Intesis interface for one Daikin Altherma 3 air-to-water heat pump on the P1/P2 bus, speaking BACnet MS/TP or Modbus RTU (Modbus is the factory setting). It exposes 100 objects for zone on/off and heat/cool mode, zone 1 and room 1 setpoints with their limits, DHW tank control, water and refrigerant temperatures, compressor and pump run times, flow and pressure.

This page lists 100 BACnet objects for the Intesis IN485DAI001A000 (Daikin Altherma 3 gateway, BACnet MS/TP) — 28 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from Intesis’s own free documentation, linked below.

Manufacturer
Intesis
Model
IN485DAI001A000 (Daikin Altherma 3 gateway, BACnet MS/TP)
Equipment
Air-to-water heat pump BACnet gateway
Equipment type
Heat pumps
BACnet objects
100 (28 writable)
Transport
BACnet MS/TP
Firmware
Not stated
Default device instance
246000
Also known as
IN485DAI001A000, Daikin Altherma 3 BACnet, Altherma BACnet MS/TP, Daikin air-to-water heat pump BACnet, Daikin P1P2 BACnet gateway, Intesis Altherma
Brands covered
Daikin
Source document
IN485DAI001A000 User Manual - Daikin Altherma 3 Air-to-water Heat Pumps to BACnet MS/TP and Modbus RTU · rev. 2025-07-18 v1.0.2
Download CSV 100 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 Intesis’s current documentation and the live device before use. Not official Intesis information. Terms of use.

BMS integration notes: Intesis IN485DAI001A000 (Daikin Altherma 3 gateway, BACnet MS/TP)

Integration in brief

Connect the gateway to the Altherma P1/P2 bus and the EIA-485 network, then set SW1 position 5 OFF: the gateway ships set for Modbus RTU. Start/stop space heating or cooling with ZonesOnOff_command, pick heat or cool with ZonesMode_command, and write zone 1, room 1 and DHW setpoints to their _command objects.

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
BO 5ZonesOnOff_commandStart/stop space heating/coolingCommand
MO 0ZonesMode_commandHeat or coolCommand
BO 15DHWOnOff_commandDomestic hot water on/offCommand
AO 3Zone1TempSetpoint_commandZone 1 setpoint from the BMSCommand
AO 24DHWTempSetpoint_commandDHW tank setpointCommand
BI 7ZonesOnOff_statusConfirms space heating/cooling is onRead
AI 74TempOutletWaterRef_statusLeaving water temperatureRead
BI 1ErrorFlag_statusUnit alarmRead
AI 2ErrorCode_statusWhich fault is activeRead

Enable & remote start

SW1 position 5 must be OFF for BACnet MS/TP (ON = Modbus RTU, the default). BO 3 RemoteControlLock_command = 1 lets only the BMS control the unit; commands from the Daikin remote are then ignored.

Sensors & values from the BMS

Write a BMS room temperature to AO 15 Room1TempBACnetRoomThermAmbientRef_command. Once a valid value is written, the gateway's Virtual Temperature function uses it to offset the setpoint so the living area reaches the requested temperature.

Network setup

Watch out for

Intesis IN485DAI001A000 (Daikin Altherma 3 gateway, BACnet MS/TP) 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.

100 of 100 shown
Type
Access
Show
Intesis IN485DAI001A000 (Daikin Altherma 3 gateway, BACnet MS/TP) BACnet Points List
DescriptionStates
AI0SerialNumberGateway serial numberRead
AI86DIP_SW_1_statusDIP SW1 (status)Read
AI87DIP_SW_2_statusDIP SW2 (status)Read
BImin1ErrorFlag_statusError flag (status)Read0=No error, 1=Error
AImin2ErrorCode_statusError code (status)Read0=No error, other=error code
AI3ErrorSubCode_statusError sub code (status)Read0=No error, other=error code
AO1OperatingTimeCountSec_commandOperating time count seconds (command)sCommand
AI7OperatingTimeCountSec_statusOperating time count seconds (status)sRead
AO2OperatingTimeCountHour_commandOperating time count hours (command)hCommand
AI8OperatingTimeCountHour_statusOperating time count hours (status)hRead
BO3RemoteControlLock_commandRemote control lock (command)Command0=Unlocked, 1=Locked
BI4RemoteControlLock_statusRemote control lock (status)Read0=Unlocked, 1=Locked
BI6Operation_statusOperation (status)Read0=Not operating, 1=Operating
BOmin5ZonesOnOff_commandZones on/off (command)Command0=Off, 1=On
BImin7ZonesOnOff_statusZones on/off (status)Read0=Off, 1=On
BI8ZonesOperation_statusZones operation (status)Read0=Not operating, 1=Operating
MOmin0ZonesMode_commandZones mode (command)Command1=Heat, 2=Cool
MI0ZonesMode_statusZones mode (status)Read1=Heat, 2=Cool
MI2Zone1ControlType_statusZone 1 control type (status)Read1=Outlet Water Temperature, 2=External Ambient Temperature, 3=Room Thermostat Ambient Temperature
MO2Zone1SetpointMode_commandZone 1 setpoint mode (command)Command1=Fixed, 2=Weather Dependent
MI3Zone1SetpointMode_statusZone 1 setpoint mode (status)Read1=Fixed, 2=Weather Dependent
BI12Zone1SetpointModeType_statusZone 1 setpoint mode type (status)Read0=Weather- dependent Heating, Fixed Cooling, 1=Weather- dependent Heating and Cooling
AOmin3Zone1TempSetpoint_commandZone 1 temperature setpoint (command)°CCommand
AI9Zone1TempSetpoint_statusZone 1 temperature setpoint (status)°CRead
AO4Zone1TempSetpointLowCustomerLimitHeat_commandZone 1 temperature setpoint lower customer limit heat (command)°CCommand
AI10Zone1TempSetpointLowCustomerLimitHeat_statusZone 1 temperature setpoint lower customer limit heat (status)°CRead
AO5Zone1TempSetpointUpCustomerLimitHeat_commandZone 1 temperature setpoint upper customer limit heat (command)°CCommand
AI11Zone1TempSetpointUpCustomerLimitHeat_statusZone 1 temperature setpoint upper customer limit heat (status)°CRead
AO6Zone1TempSetpointLowCustomerLimitCool_commandZone 1 temperature setpoint lower customer limit cool (command)°CCommand
AI12Zone1TempSetpointLowCustomerLimitCool_statusZone 1 temperature setpoint lower customer limit cool (status)°CRead
AO7Zone1TempSetpointUpCustomerLimitCool_commandZone 1 temperature setpoint upper customer limit cool (command)°CCommand
AI13Zone1TempSetpointUpCustomerLimitCool_statusZone 1 temperature setpoint upper customer limit cool (status)°CRead
AI14Zone1TempSetpointUnitLowLimitHeat_statusZone 1 temperature setpoint unit lower limit heat (status)°CRead
AI15Zone1TempSetpointUnitUpLimitHeat_statusZone 1 temperature setpoint unit upper limit heat (status)°CRead
AI16Zone1TempSetpointUnitLowLimitCool_statusZone 1 temperature setpoint unit lower limit cool (status)°CRead
AI17Zone1TempSetpointUnitUpLimitCool_statusZone 1 temperature setpoint unit upper limit cool (status)°CRead
AI18Zone1TempSetpointAppliedLowLimitHeat_statusZone 1 temperature setpoint applied lower limit heat (status)°CRead
AI19Zone1TempSetpointAppliedUpLimitHeat_statusZone 1 temperature setpoint applied upper limit heat (status)°CRead
AI20Zone1TempSetpointAppliedLowLimitCool_statusZone 1 temperature setpoint applied lower limit cool (status)°CRead
AI21Zone1TempSetpointAppliedUpLimitCool_statusZone 1 temperature setpoint applied upper limit cool (status)°CRead
BO9Zone1ScheduledMode_commandZone 1 scheduled mode (command)Command0=Off, 1=On
BI14Zone1ScheduledMode_statusZone 1 scheduled mode (status)Read0=Off, 1=On
AO10Room1TempSetpoint_commandRoom 1 temperature setpoint (command)°CCommand
AI27Room1TempSetpoint_statusRoom 1 temperature setpoint (status)°CRead
AO11Room1TempSetpointCustomLowLimitHeat_commandRoom 1 temperature setpoint custom lower limit heat (command)°CCommand
AI28Room1TempSetpointCustomLowLimitHeat_statusRoom 1 temperature setpoint custom lower limit heat (status)°CRead
AO12Room1TempSetpointCustomUpLimitHeat_commandRoom 1 temperature setpoint custom upper limit heat (command)°CCommand
AI29Room1TempSetpointCustomUpLimitHeat_statusRoom 1 temperature setpoint custom upper limit heat (status)°CRead
AO13Room1TempSetpointCustomLowLimitCool_commandRoom 1 temperature setpoint custom lower limit cool (command)°CCommand
AI30Room1TempSetpointCustomLowLimitCool_statusRoom 1 temperature setpoint custom lower limit cool (status)°CRead
AO14Room1TempSetpointCustomUpLimitCool_commandRoom 1 temperature setpoint custom upper limit cool (command)°CCommand
AI31Room1TempSetpointCustomUpLimitCool_statusRoom 1 temperature setpoint custom upper limit cool (status)°CRead
AI32Room1TempSetpointUnitLowLimitHeat_statusRoom 1 temperature setpoint unit lower limit heat (status)°CRead
AI33Room1TempSetpointUnitUpLimitHeat_statusRoom 1 temperature setpoint unit upper limit heat (status)°CRead
AI34Room1TempSetpointUnitLowLimitCool_statusRoom 1 temperature setpoint unit lower limit cool (status)°CRead
AI35Room1TempSetpointUnitUpLimitCool_statusRoom 1 temperature setpoint unit upper limit cool (status)°CRead
AI36Room1TempSetpointAppliedLowLimitHeat_statusRoom 1 temperature setpoint applied lower limit heat (status)°CRead
AI37Room1TempSetpointAppliedUpLimitHeat_statusRoom 1 temperature setpoint applied upper limit heat (status)°CRead
AI38Room1TempSetpointAppliedLowLimitCool_statusRoom 1 temperature setpoint applied lower limit cool (status)°CRead
AI39Room1TempSetpointAppliedUpLimitCool_statusRoom 1 temperature setpoint applied upper limit cool (status)°CRead
AO15Room1TempBACnetRoomThermAmbientRef_commandRoom 1 temperature BMS room sensor ambient reading (command)°CCommand
AI41Room1TempBACnetRoomThermAmbientRef_statusRoom 1 temperature BMS room sensor ambient reading (status)°CRead
BO10Room1AntifrostMode_commandRoom 1 antifrost mode (command)Command0=Off, 1=On
BI15Room1Antifrost_statusRoom 1 antifrost (status)Read0=0ff, 1=On
AO16Room1AntifrostRoomSetpointTempHeat_commandRoom 1 antifrost room setpoint temperature heat (command)°CCommand
AI42Room1AntifrostRoomSetpointTempHeat_statusRoom 1 antifrost room setpoint temperature heat (status)°CRead
BOmin15DHWOnOff_commandDHW on/off (command)Command0=Off, 1=On
BI22DHWOnOff_statusDHW on/off (status)Read0=Off, 1=On
BI23DHWOperation_statusDHW operation (status)Read0=Not Operating, 1=Operating
BO16DHWSetpointMode_commandDHW setpoint mode (command)Command0=Fixed, 1=Weather Dependent
BI24DHWSetpointMode_statusDHW setpoint mode (status)Read0=Fixed, 1=Weather Dependent
AOmin24DHWTempSetpoint_commandDHW temperature setpoint (command)°CCommand
AI61DHWTempSetpoint_statusDHW temperature setpoint (status)°CRead
AO25DHWTempSetpointCustomLowLimit_commandDHW temperature setpoint custom lower limit (command)°CCommand
AI62DHWTempSetpointCustomLowLimit_statusDHW temperature setpoint custom lower limit (status)°CRead
AO26DHWTempSetpointCustomUpLimit_commandDHW temperature setpoint custom upper limit (command)°CCommand
AI63DHWTempSetpointCustomUpLimit_statusDHW temperature setpoint custom upper limit (status)°CRead
AI64DHWTempSetpointTankLowLimit_statusDHW temperature setpoint tank lower limit (status)°CRead
AI65DHWTempSetpointTankUpLimit_statusDHW temperature setpoint tank upper limit (status)°CRead
AI66DHWTempSetpointAppliedLowLimit_statusDHW temperature setpoint applied lower limit (status)°CRead
AI67DHWTempSetpointappliedUpLimit_statusDHW temperature setpoint applied upper limit (status)°CRead
AI68DHWTempTankRef_statusDHW temperature tank reading (status)°CRead
BI28DHWScheduledMode_statusDHW scheduled mode (status)Read0=Off, 1=On
BO21DHWPowerfulOperation_commandDHW powerful operation (command)Command0=Off, 1=On
BI29DHWPowerfulOperation_statusDHW powerful operation (status)Read0=Off, 1=On
BI30DHWDisinfectionMode_statusDHW disinfection mode (status)Read0=Off, 1=On
AI72TempA2WUnitOutdoorAmbientRef_statusTemperature heatpump unit outdoor ambient reading (status)°CRead
AI73TempRefrigerantRef_statusTemperature refrigerant reading (status)°CRead
AImin74TempOutletWaterRef_statusTemperature outlet water reading (status)°CRead
AI75TempOutletWaterRefPlateHeatExchanger_statusTemperature outlet water reading plate heat exchanger (status)°CRead
AI76TempInletWaterRef_statusTemperature inlet water reading (status)°CRead
BI32QuietModeLowNoiseOperation_statusQuiet mode lower noise operation (status)Read0=Off, 1=On
BI40CompressorOperation_statusCompressor operation (status)Read0=Off, 1=On
AO30CompressorOperatingTime_commandCompressor operating time (command)hCommand
AI77CompressorOperatingTime_statusCompressor operating time (status)hRead
BI41CirculationPumpOperation_statusCirculation pump operation (status)Read0=Off, 1=On
AO31CirculationPumpOperatingTime_commandCirculation pump operating time (command)hCommand
AI78CirculationPumpOperatingTime_statusCirculation pump operating time (status)hRead
AI79WaterFlowRate_statusWater flow rate (status)l/hRead
AI80WaterPressureDHW_statusWater pressure DHW (status)PaRead
Object ID lookup: Intesis Daikin Altherma 3 Gateway IN485DAI001A000 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 IN485DAI001A000 (Daikin Altherma 3 gateway, BACnet MS/TP) 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 Intesis IN485DAI001A000 (Daikin Altherma 3 gateway, BACnet MS/TP)

How many BACnet points does the Intesis IN485DAI001A000 (Daikin Altherma 3 gateway, BACnet MS/TP) have?

This list has 100 BACnet objects: 52 analog inputs, 19 analog outputs, 17 binary inputs, 7 binary outputs, 3 multi-state inputs, 2 multi-state outputs. The exact set on a given unit depends on its firmware, installed options and configuration.

Which Intesis IN485DAI001A000 (Daikin Altherma 3 gateway, BACnet MS/TP) BACnet points are writable?

28 of the 100 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. The source has no read/write column, so this is inferred from object type.

Where is the official Intesis IN485DAI001A000 (Daikin Altherma 3 gateway, BACnet MS/TP) BACnet documentation?

The source is IN485DAI001A000 User Manual - Daikin Altherma 3 Air-to-water Heat Pumps to BACnet MS/TP and Modbus RTU, revision 2025-07-18 v1.0.2, published free by Intesis at https://www.hms-networks.com/docs/default-source/products/intesis/manuals-and-guides---manuals/user-manual-in485dai001a000.pdf.

What are the minimum BACnet points to integrate the Intesis IN485DAI001A000 (Daikin Altherma 3 gateway, BACnet MS/TP)?

Start with BO 5 ZonesOnOff_command (Start/stop space heating/cooling); MO 0 ZonesMode_command (Heat or cool); BO 15 DHWOnOff_command (Domestic hot water on/off); AO 3 Zone1TempSetpoint_command (Zone 1 setpoint from the BMS); AO 24 DHWTempSetpoint_command (DHW tank setpoint); BI 7 ZonesOnOff_status (Confirms space heating/cooling is on); AI 74 TempOutletWaterRef_status (Leaving water temperature); BI 1 ErrorFlag_status (Unit alarm); AI 2 ErrorCode_status (Which fault is active).

How do I enable BMS control of the Intesis IN485DAI001A000 (Daikin Altherma 3 gateway, BACnet MS/TP)?

SW1 position 5 must be OFF for BACnet MS/TP (ON = Modbus RTU, the default). BO 3 RemoteControlLock_command = 1 lets only the BMS control the unit; commands from the Daikin remote are then ignored.

Can the BMS supply sensor values to the Intesis IN485DAI001A000 (Daikin Altherma 3 gateway, BACnet MS/TP)?

Write a BMS room temperature to AO 15 Room1TempBACnetRoomThermAmbientRef_command. Once a valid value is written, the gateway's Virtual Temperature function uses it to offset the setpoint so the living area reaches the requested temperature.

How do I check these points on the real IN485DAI001A000 (Daikin Altherma 3 gateway, BACnet MS/TP)?

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 Intesis BACnet points lists

Source: IN485DAI001A000 User Manual - Daikin Altherma 3 Air-to-water Heat Pumps to BACnet MS/TP and Modbus RTU · rev. 2025-07-18 v1.0.2. Object names, instances and units are reproduced as published; descriptions are our own.