INBACMHI001R000 – BACnet gateway for Mitsubishi Heavy Industries air conditioners

BACnet gateway for Mitsubishi Heavy Industries RAC, FD, KX6 and KXR6 systems. 

The INBACMHI001R000 gateway provides seamless integration of Mitsubishi Heavy Industries air conditioning units with building management systems using BACnet IP and BACnet MS/TP. It enables two-way communication, allowing remote control, monitoring, automation and advanced BMS scripting for both indoor units and VRF systems. For RAC units, the SC-BIKN-E adapter board is required.

Each connected indoor unit appears to the BMS as a clean, structured set of BACnet objects, simplifying configuration, scheduling, control logic and system-wide automation. The gateway is fully compatible with MHI FD and VRF systems.

Full BACnet integration – comprehensive control and status feedback

With INBACMHI001R000, the BMS can manage all essential functions of the MHI indoor unit:

• ON/OFF control,
• mode selection (heating, cooling, ventilation, dry, auto),
• fan speed control (auto + multiple fixed speeds),
• setpoint temperature control and room temperature monitoring,
• vertical louvre positioning (fixed positions + swing),
• Occupied/Unoccupied modes,
• full support for unit status flags.

This allows complete integration with advanced building logic – from energy-saving schedules to automated comfort scenarios and real-time environmental control.

Advanced monitoring, alarms and service diagnostics

The gateway exposes a wide set of diagnostic and maintenance information:

• full list of MHI error codes and active fault reporting,
• room and outdoor temperature readings,
• unit runtime monitoring,
• filter status indication and remote reset,
• comprehensive status flags for operation mode, fan state and airflow direction.

These capabilities are especially valuable for multi-site operators and service companies, improving maintenance planning and reducing downtime.

BACnet IP and BACnet MS/TP support

INBACMHI001R000 supports both major BACnet communication layers, ensuring full flexibility:

• BACnet IP for easy integration with BMS servers, SCADA and PLC systems,
• BACnet MS/TP (RS-485) with configurable baud rates,
• support for BACnet services such as read/write, trending, alarming and time synchronization,
• clear and transparent mapping of all MHI unit functions into BACnet objects.

This allows the gateway to be used in small installations as well as complex, multi-controller building infrastructures.

Installation, configuration and mounting conditions

The device is designed for installation inside an enclosure. If mounted outside, proper precautions must be taken to prevent electrostatic discharge (ESD). When working inside the enclosure (setting switches, adjustments, etc.), standard anti-static procedures must always be followed.

The unit is mounted using a DIN rail bracket (included) or can be wall-mounted. Configuration is performed through the built-in Web Server, allowing quick setup of network parameters, BACnet addressing and communication settings. The gateway supports one indoor unit (Capacity: 1 indoor unit).

Technical and logistical specifications

• Content of delivery: Intesis gateway, installation manual
• Input voltage: 14 VDC
• Power consumption: 2.1 W
• Power connector: 2-pole
• Operating temperature: 0°C to +40°C
• Storage temperature: 0°C to +40°C
• Housing material: Plastic
• Warranty: 3 years

Device dimensions:

• Net width: 53 mm
• Net height: 58 mm
• Net depth: 93 mm
• Net weight: 113 g

Packed dimensions:

• Packed width: 140 mm
• Packed height: 86 mm
• Packed depth: 110 mm
• Packed weight: 206 g

If you need a reliable BACnet integration solution for Mitsubishi Heavy Industries air conditioning systems, the INBACMHI001R000 provides stable communication, simple configuration and full BMS control.