MTA Unveils GEMINI N, the new range of Modular Air-Cooled Chillers, Extending its Ultra-Low GWP Solutions Portfolio

Combining modular flexibility with the thermodynamic benefits of R290 – a zero-GWP refrigerant – GEMINI N raises the bar for high seasonal efficiency, compact scalability and sustainable performance across comfort and process cooling applications.

Conselve (PD), Italy - MTA^®, a leading provider of cooling solutions for buildings and industrial processes, acquired by Trane Technologies, is expanding its portfolio of high-performance, low global warming potential (GWP) cooling solutions for commercial buildings and manufacturing facilities, with the introduction of GEMINI N, new range of modular full-inverter scroll air-cooled chillers. The new units use non-ozone-depleting, ultra-low GWP R290 refrigerant and deliver high performance in a compact footprint across a broad range of applications, from comfort to demanding process cooling environments.

GEMINI N delivers strong seasonal efficiency in both comfort and process cooling applications where performance, footprint and adaptability are critical. In comfort cooling, the range achieves best-in-class seasonal efficiency, with an average Seasonal Energy Efficiency Ratio (SEER) of 5.4. In process cooling, an average Energy Performance Ratio - High Temperature (SEPR HT) of 5.9 supports energy efficient operations across the most demanding industrial applications. Its extended operating map further enhances application flexibility, enabling GEMINI N to provide chilled water between 25°and -12°C while maintaining dependable year-round performance across varied cooling demands.

The modular design of the GEMINI N simplifies installation while supporting high-capacity system layouts withing a compact footprint. Up to six units can be installed side by side with minimal clearance, allowing total cooling capacity to scale up to 750 kW. Quick hydraulic connections and intuitive group control further streamline installation, commissioning, and maintenance.

GEMINI N is available in nominal cooling capacities from 64 to 125 kW and with four acoustic versions. The units can be configured with integrated hydraulic modules and a range of options, including medium- and high-pressure pumps, bypass kit, protection panels, grilles, and metal mesh coil filters.

To ensure compliant side-by-side operation and reinforce reliability in demanding environments, GEMINI N incorporates an integrated safety package including an ATEX leak-management system, shared interlock shutdown, and an optional high-efficiency gas/water separator.

GEMINI N integrates with building automation systems through the Trane Symbio™ 800 controller, an application-specific, field-programmable platform supporting industry-standard protocols including BACnet IP and Modbus TCP. This enables enhanced control, monitoring, and connectivity, while supporting future-ready digital services and broader building management strategies.