Trane extends R290 heat pump portfolio
25th February 2026
BELGIUM: Trane has extended its R290 refrigerant equipment portfolio with the launch of the Flex N HP and Aries N HP air-to-water heat pumps.
These next generation and high-capacity units are designed to meet the demands of customers across Europe, Middle East, Africa, Australia and New Zealand.
Both units are said to deliver exceptionally high seasonal efficiencies in heating across the entire temperature range. The units offer extended operating maps, with continuous operation down to -20°C ambient temperatures and hot water production capabilities up to 77°C.
“With the addition of these units, Trane becomes the only manufacturer to offer a full lineup of R290 systems spanning heat pump and chiller segments, giving customers unmatched choice and flexibility across all applications,” claimed Erik Van Oossanen, Trane’s product management leader.
Trane Flex N HP is a modular air-source heat pump designed with full inverter scroll technology. Its modular architecture is said to enable quick hydraulic connection and streamlined electronic control in banks of up to six units, supporting heating capacities that extend beyond 700kW.
The platform’s compact footprint and side by side installation minimise the space required on site. Refrigerant charge is under 5kg per circuit up to 125kW.
Flex N HP delivers SCOPs up to 4.5 for typical operating conditions, and can operate in low ambient temperatures down to -20°C while producing leaving water temperatures as high as 77°C.
Trane Aries N HP is a packaged all-in-one solution with capacity up to 230kW. Built on high efficiency scroll compressor technology and leveraging a double-circuit configuration, Aries N HP ensures smooth defrosting and reliable heating performance even during low temperature operation.
The unit’s design, layout and dimensions align closely with traditional HFC‑based installed units, enabling straightforward replacement and simplifying the retrofit process for customers upgrading existing systems.
The heat pump delivers seasonal efficiencies up to 4.3 for typical operating conditions. Its operating map mirrors the Flex N HP, enabling operation down to -20°C ambient and producing hot water up to 75°C. Integrated with Trane’s Symbio 800 controls, it also introduces built-in cybersecurity meeting the AICPA criteria.
Each unit is equipped with a comprehensive safety pack that includes an ATEX certified leak management system, safety relief valves, and an optional gas-water separator.
Both Flex N HP and Aries N HP feature Trane’s SDS2E (segregate/detect/stop/signal/extract) system to enable safe use of the R290 refrigerant. For modular Flex N HP configurations, a safety interlock kit option will be mandatory to stop near units in case of a leak.
Manufactured at Trane Technologies’ European factory, both product ranges will be available with Eurovent certification.
