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VRF BACnet gateway (Mitsubishi Heavy Industries, multi-unit) · BACnet points list

Intesis IN776MHI***O000 (700 Series Air gateway, Mitsubishi Heavy Industries VRF to BACnet) BACnet points list

Updated 12 November 2026

Short answer

The IN776MHI***O000 is a multi-protocol Intesis 700 Series gateway for Mitsubishi Heavy Industries VRF systems that serves them as BACnet IP or BACnet MS/TP objects (one map for both). It has global (all units) objects, an outdoor-unit block with compressor, temperature and pressure readings, and a 25-object-wide block per indoor unit; instances follow fixed formulas.

This page lists 66 BACnet objects for the Intesis IN776MHI***O000 (700 Series Air gateway, Mitsubishi Heavy Industries VRF to BACnet) — 19 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
IN776MHI***O000 (700 Series Air gateway, Mitsubishi Heavy Industries VRF to BACnet)
Equipment
VRF BACnet gateway (Mitsubishi Heavy Industries, multi-unit)
Equipment type
VRF & split air conditioners
BACnet objects
66 (19 writable)
Transport
BACnet IP, BACnet MS/TP
Firmware
Not stated
Also known as
IN776MHI, IN776MHIO000, IN776MHI***O000, IN776MHI00LO000, 700 Series Air MHI, Intesis MHI VRF BACnet gateway, Mitsubishi Heavy Industries VRF BACnet, MHI KX VRF BACnet
Source document
700 Series Air Gateway - IN776MHI***O000, Mitsubishi Heavy Industries VRF systems, User Manual (section 7.3 Integration into BACnet systems) · rev. Version 1.2.18 (2025-12-09)
Download CSV 66 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 IN776MHI***O000 (700 Series Air gateway, Mitsubishi Heavy Industries VRF to BACnet)

Integration in brief

Connect the gateway to the MHI VRF bus, configure the units in Intesis MAPS, then map each indoor unit's _C/_S objects from its block (IU x 25). Use the all-units objects (15000+) for global commands.

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 25IUXX_On/Off_CStart/stop indoor unitCommand
MO 25IUXX_Operation Mode_CMode commandCommand
AO 25IUXX_Temperature Setpoint_CSetpoint commandCommand
MO 26IUXX_FanSpeed_CFan speed commandCommand
BI 26IUXX_On/Off_SRun statusRead
AI 25IUXX_Temperature Setpoint_SSetpoint in useRead
AI 26IUXX_Room Temperature_SRoom temperatureRead
BI 25IUXX_Communication Status_SUnit offline alarmRead
AI 27IUXX_Unit Error code_SFault code (0 = no error)Read
BI 15000Gateway Communication StatusGateway communication errorRead

Enable & remote start

No enable point is documented; remote controllers can be locked per unit with IUXX_Remote Lock_C or globally with Remote Lock.

Network setup

Watch out for

Intesis IN776MHI***O000 (700 Series Air gateway, Mitsubishi Heavy Industries VRF to BACnet) 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.

66 of 66 shown
Type
Access
Show
Intesis IN776MHI***O000 (700 Series Air gateway, Mitsubishi Heavy Industries VRF to BACnet) BACnet Points List
DescriptionStates
BImin15000Gateway Communication StatusRead0=No error, 1=Error
BO15000On/Off (all units)Command0=Off, 1=On
MO15000Mode (all units)Command1=Heat, 2=Cool, 3=Fan, 4=Dry, 5=Auto
AO15000Temperature Setpoint (all units)Only when the Dual-Setpoint function is disabled°C/°FCommand
MO15001FanSpeed (all units)Command1=Low, 2=Medium, 3=High, 4=Powerful
BO15001Remote LockCommand0=Unlock, 1=Lock
AO15001Dualsetpoint Cool Temperature (all units)Only when the Dual-Setpoint function is enabled°C/°FCommand
AO15002Dualsetpoint Heat Temperature (all units)Only when the Dual-Setpoint function is enabled°C/°FCommand
AO15003Dualsetpoint Auto Temperature (all units)Only when the Dual-Setpoint function is enabled°C/°FCommand
AI10020OUXX_Compressor 1 FrequencyHzRead
AI10021OUXX_Compressor 2 FrequencyHzRead
AI10022OUXX_Heat Exchange low 1 temperature°C/°FRead
AI10023OUXX_Heat Exchange low 2 temperature°C/°FRead
AI10024OUXX_Heat Exchange low 3 temperature°C/°FRead
AI10025OUXX_Heat Exchange low 4 temperature°C/°FRead
AI10026OUXX_Heat exchange high 1 temperature°C/°FRead
AI10027OUXX_Heat exchange high 2 temperature°C/°FRead
AI10028OUXX_Heat exchange high 3 temperature°C/°FRead
AI10029OUXX_Heat exchange high 4 temperature°C/°FRead
AI10030OUXX_Unit temperature°C/°FRead
AI10031OUXX_Discharge pipe 1 temperature°C/°FRead
AI10032OUXX_Discharge pipe 2 temperature°C/°FRead
AI10033OUXX_Crankcase temperature 1°C/°FRead
AI10034OUXX_Crankcase temperature 2°C/°FRead
AI10035OUXX_Compressor current 1ARead
AI10036OUXX_Compressor current 2ARead
AI10037OUXX_High pressureMPaRead
AI10038OUXX_Low pressureMPaRead
BImin25IUXX_Communication Status_SRead0=No Error, 1=Error
BImin26IUXX_On/Off_SRead0=Off, 1=On
BOmin25IUXX_On/Off_CCommand0=Off, 1=On
MI25IUXX_Operation Mode_SRead1=Heat, 2=Cool, 3=Fan, 4=Dry, 5=Auto
MOmin25IUXX_Operation Mode_CCommand1=Heat, 2=Cool, 3=Fan, 4=Dry, 5=Auto
AImin25IUXX_Temperature Setpoint_S°C/°FRead
AOmin25IUXX_Temperature Setpoint_COnly when the Dual-Setpoint function is disabled°C/°FCommand
MI26IUXX_FanSpeed_SRead1=Low, 2=Medium, 3=High, 4=Powerful
MOmin26IUXX_FanSpeed_CCommand1=Low, 2=Medium, 3=High, 4=Powerful
BI27IUXX_Remote Lock_SRead0=Unlock, 1=Lock
BO26IUXX_Remote Lock_CCommand0=Unlock, 1=Lock
MI27IUXX_Louver / Vane Position_SRead1=Swing, 2=Pos1, 3=Pos2, 4=Pos3, 5=Pos4
MO27IUXX_Louver / Vane Position_CCommand1=Swing, 2=Pos1, 3=Pos2, 4=Pos3, 5=Pos4
AImin26IUXX_Room Temperature_S°C/°FRead
BI28IUXX_Filter Sign_SRead0=Off, 1=On
AImin27IUXX_Unit Error code_S0 = no error, 1-255 = error codeRead
BI29IUXX_Compressor_SRead0=Off, 1=On
BO27IUXX_Filter Sign Reset_CCommand0=No reset, 1=Reset
BO28IUXX_RC Error Reset_CCommand0=No reset, 1=Reset
BI30IUXX_Thermo On/Off_SRead0=Off, 1=On
AI28IUXX_Expansion valve opening pulse_SExpansion valve opening, 0-999 pulsesRead
AI29IUXX_Decision frequency_SHzRead
AI30IUXX_Demand frequency_SHzRead
AI31IUXX_Heat Exchange low 1 temperature_S°C/°FRead
AI32IUXX_Heat Exchange low 2 temperature_S°C/°FRead
AI33IUXX_Heat Exchange low 3 temperature_S°C/°FRead
AI34IUXX_Consumption Yesterday_SWh/kWhRead
AI35IUXX_Consumption Today_SWh/kWhRead
AI36IUXX_Consumption Total_SWh/kWhRead
AI37IUXX_Consumption Yesterday Heat_SWh/kWhRead
AI38IUXX_Consumption Today Heat_SWh/kWhRead
AI39IUXX_Consumption Total Heat_SWh/kWhRead
AI40IUXX_Consumption Yesterday Cool_SWh/kWhRead
AI41IUXX_Consumption Today Cool_SWh/kWhRead
AI42IUXX_Consumption Today Cool_SPrinted with the same name as AI 41 (offset 17)Wh/kWhRead
AO26IUXX_Dualsetpoint Cool Temperature_COnly when the Dual-Setpoint function is enabled°C/°FCommand
AO27IUXX_Dualsetpoint Heat Temperature_COnly when the Dual-Setpoint function is enabled°C/°FCommand
AO28IUXX_Dualsetpoint Auto Temperature_COnly when the Dual-Setpoint function is enabled°C/°FCommand
Object ID lookup: Intesis IN776MHI***O000 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 IN776MHI***O000 (700 Series Air gateway, Mitsubishi Heavy Industries VRF to BACnet) 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 IN776MHI***O000 (700 Series Air gateway, Mitsubishi Heavy Industries VRF to BACnet)

How many BACnet points does the Intesis IN776MHI***O000 (700 Series Air gateway, Mitsubishi Heavy Industries VRF to BACnet) have?

This list has 66 BACnet objects: 37 analog inputs, 8 analog outputs, 7 binary inputs, 6 binary outputs, 3 multi-state inputs, 5 multi-state outputs. The exact set on a given unit depends on its firmware, installed options and configuration.

Which Intesis IN776MHI***O000 (700 Series Air gateway, Mitsubishi Heavy Industries VRF to BACnet) BACnet points are writable?

19 of the 66 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 IN776MHI***O000 (700 Series Air gateway, Mitsubishi Heavy Industries VRF to BACnet) BACnet documentation?

The source is 700 Series Air Gateway - IN776MHI***O000, Mitsubishi Heavy Industries VRF systems, User Manual (section 7.3 Integration into BACnet systems), revision Version 1.2.18 (2025-12-09), published free by Intesis at https://www.hms-networks.com/docs/default-source/products/intesis/manuals-and-guides---manuals/user-manual-in776airxxxo000.pdf.

What are the minimum BACnet points to integrate the Intesis IN776MHI***O000 (700 Series Air gateway, Mitsubishi Heavy Industries VRF to BACnet)?

Start with BO 25 IUXX_On/Off_C (Start/stop indoor unit); MO 25 IUXX_Operation Mode_C (Mode command); AO 25 IUXX_Temperature Setpoint_C (Setpoint command); MO 26 IUXX_FanSpeed_C (Fan speed command); BI 26 IUXX_On/Off_S (Run status); AI 25 IUXX_Temperature Setpoint_S (Setpoint in use); AI 26 IUXX_Room Temperature_S (Room temperature); BI 25 IUXX_Communication Status_S (Unit offline alarm); AI 27 IUXX_Unit Error code_S (Fault code (0 = no error)); BI 15000 Gateway Communication Status (Gateway communication error).

How do I enable BMS control of the Intesis IN776MHI***O000 (700 Series Air gateway, Mitsubishi Heavy Industries VRF to BACnet)?

No enable point is documented; remote controllers can be locked per unit with IUXX_Remote Lock_C or globally with Remote Lock.

How do I check these points on the real IN776MHI***O000 (700 Series Air gateway, Mitsubishi Heavy Industries VRF to BACnet)?

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: 700 Series Air Gateway - IN776MHI***O000, Mitsubishi Heavy Industries VRF systems, User Manual (section 7.3 Integration into BACnet systems) · rev. Version 1.2.18 (2025-12-09). Object names, instances and units are reproduced as published; descriptions are our own.