KNX Communication Modules for Mitsubishi Air Conditioners – HVAC Integration with BMS

Functionality available via the KNX communication module

KNX Communication Modules for Mitsubishi Air Conditioners

KNX communication modules for Mitsubishi air conditioners are dedicated integration devices designed to connect VRF, VRV and selected split and multi-split air conditioning systems with building automation installations based on the KNX TP-1 standard. Thanks to these modules, air conditioning systems no longer operate as standalone devices but become a fully integrated part of the BMS (Building Management System).

Using a KNX communication module enables centralized HVAC control via KNX touch panels, BMS visualizations, operator applications and control logic implemented in KNX controllers. This makes such solutions essential for modern office buildings, hotels, commercial facilities, hospitals and advanced residential installations.

What is a KNX communication module and what is it used for?

A KNX communication module is a protocol gateway that translates data and commands between the Mitsubishi air conditioning system and the KNX bus. On one side, it communicates directly with the air conditioner electronics via the manufacturer-dedicated interface, while on the other side it exposes KNX communication objects corresponding to HVAC functions.

This allows installers and system integrators to control air conditioning in exactly the same way as other building automation systems, such as lighting, blinds, heating or ventilation. All control logic can be implemented centrally or locally, without the need for IR remote controllers or dedicated HVAC wall units.

How does KNX integration with Mitsubishi air conditioners work?

The KNX communication module for Mitsubishi air conditioners is connected directly to the communication bus of the indoor unit or the VRF system. On the KNX side, the device operates as a standard KNX bus participant, configured using the ETS software. Each air conditioning function is mapped to KNX communication objects, ensuring full bidirectional communication.

This means that the KNX system not only sends commands to the air conditioner but also receives real-time feedback. Changes to setpoint temperature, operating mode or unit status are immediately visible in the BMS visualization and can be used within building automation scenarios.

Functionality available via the KNX communication module

Depending on the gateway model and the type of Mitsubishi air conditioner, the KNX communication module allows, among others:

• switching indoor units on and off,
• setting the target temperature,
• changing operating modes (cooling, heating, fan, auto),
• controlling fan speed,
• adjusting air louver position,
• reading room temperature,
• monitoring alarms and error states,
• reading unit operating status.

Such a wide range of data makes it possible to precisely synchronize air conditioning with other building systems, such as automatic shading, occupancy detection or building operating schedules.

Why use KNX modules in Mitsubishi HVAC systems?

Using a KNX communication module for Mitsubishi air conditioners provides both functional and operational benefits. Centralized HVAC control improves user comfort, reduces energy consumption and simplifies building management. The KNX system allows the creation of advanced automation scenarios, such as automatically reducing cooling when rooms are unoccupied or blocking air conditioning operation when windows are open.

Additionally, KNX integration eliminates the need for multiple manufacturer-specific controllers, resulting in cleaner interior design, fewer wall-mounted devices and a simpler user experience.

Applications of KNX communication modules for Mitsubishi air conditioners

KNX communication modules are used in a wide range of projects, from smart residential buildings to offices, hotels and large commercial facilities. They are particularly recommended wherever full HVAC integration with building automation is required, along with centralized monitoring and energy optimization.

Each KNX communication module for Mitsubishi air conditioners has a defined list of compatible indoor units, available in the manufacturer documentation. Before selecting a specific solution, it is recommended to verify compatibility and choose the appropriate model for the scale of the installation.