Optimus Mitsubishi Electric (TB15) Air Conditioning Gateway

This gateway gives Mitsubishi Electric air-conditioning systems a native voice on the KNX bus. Connecting via the TB15 interface, it exposes the indoor unit’s controls — on/off, mode, setpoint, fan speed, vane position — as standard KNX group objects, so the same wall panels, schedules, and scenes that run lighting and curtains also run the AC, with status feedback in both directions. For villas and offices across the UAE where Mitsubishi VRF and split systems dominate, this is the piece that turns a lighting-control installation into full climate integration: occupancy-based setback, “away” scenes that ease the setpoint instead of hard-off, and BMS-style monitoring without a separate BMS. Running Samsung equipment instead? The Samsung AC Gateway from the same Optimus family provides the identical KNX experience for Samsung systems.

• Bidirectional communication between KNX and the AC indoor unit.
• 3 digital inputs for switches or sensors.
• 10 customizable logic functions per device:
• Direct installation inside indoor units, requiring no external power.
• Compact and easy-to-integrate design.

In order to enhance energy management and user comfort in buildings, building automation systems are increasingly being adopted. The central control of HVAC systems is one of the most efficient and convenient ways to improve energy efficiency and user comfort. In order to integrate Daikin, Mitsubishi Electric, and Samsung air conditioners into KNX based automation systems, Optimus has developed the OPT-ACG-1xx series of air conditioners. These devices enable bi-directional communication between the AC units and the KNX bus, allowing users to manage all essential climate control functions directly via the KNX interface.

The OPT-ACG-1xx series offers professional solutions for integrating HVAC units from different manufacturers into KNX-based building automation systems. Supporting various port types such as P1P2, TB15, CN105, and F3/F4, the devices stand out with their brand-specific compatibility. Common features include bi-directional communication, digital input support, and advanced logic functions providing significant benefits in both comfort and energy efficiency.

For smart building projects requiring truly centralized and automated climate control. The OPT-ACG-1xx KNX interface series are a dependable and versatile choice.

It is powered by the KNX data bus without needing an external adapter. It means enabling easier installation and less wiring.

The OPT-ACG-121 is a gateway with a bi-directional communication between KNX system and Mitsubishi Electric (TB15) AC system.