Controls and Connectivity

ACC MTL

The central controller ACC MTL allows easy and reliable operation of all connected VRF components. Featuring a modern 7'' touch screen, it offers an easy-to-use interface and can manage up to 64 indoor units and 8 VRF systems.

Modern 7'' touch screen controller
Direct BMS connection with ModBUS TCP/IP (in 2026)
Energy monitoring and management
Enhanced monitoring and visualization
PC access control and remote access availability with VPN

Benefits

User-friendly 7'' Touch Screen Controller

Users can easily access menus through the intuitive dashboard, featuring a simple design that enhances control. It allows for easy management and visualization of up to 64 indoor units and 8 VRF systems via a functional user interface. Additionally, the controller offers update possibilities through USB access for product improvements.

Direct BMS Connection

The ModBUS TCP/IP interface allows the ACC MTL controller to read and write data using this protocol. Separate IP addresses can be assigned to each XYE port, enabling connections with Building Management Systems (BMS).(Available in 2026 with SW update)

Energy Monitoring and Management

Efficiently manage energy with advanced monitoring, even without a power meter. Estimate real-time energy use and gain system insights. Enhanced monthly reports help visualize usage and improve efficiency. Users can also set or limit outdoor unit capacities for additional savings.

Enhanced Monitoring and Visualization

The new dashboard provides a comprehensive overview of system parameters. Users can easily monitor key metrics and choose from different view options for operation, including a Floor Plan Manager. This functionality allows for intuitive navigation and effective management of the entire system.

Remote Access

Including a variety of connectivity options, the ACC MTL is designed for user convenience. Among these, Remote Access via VPN ensures seamless management from anywhere. Additional features such as Local Remote (Web Access), E-Mail Alerts, and ModBUS TCP/IP for Building Management System (BMS) further enhance operational flexibility and efficiency.

Emergency Shut Down

In the event of an emergency alarm in a commercial building, this feature enables communication with the system to ensure a safe and efficient shutdown of the VRF system.