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200x40.indd 1 Daikin Applied Sanhua 1/9/25 13:58
Daikin Applied has expanded its portfolio of R-290 (propane) chillers and heat pumps, introducing a new generation of systems designed to support decarbonisation across commercial, industrial and mission-critical HVAC applications. The extended range combines natural refrigerant technology with modular system architecture and advanced safety engineering, enabling building owners and operators to transition to lower global warming potential (GWP) solutions while maintaining the reliability and effi ciency required for large-scale plant installations. The portfolio spans capacities from 17 kW up to 2,000 kW, supporting a wide range of hydronic cooling and heating requirements. Because R-290 is a fl ammable refrigerant, safety considerations are central to the design of these systems. Daikin has addressed this through a comprehensive engineering approach known as the Daikin Safety Shield, which integrates multiple layers of protection throughout the unit. This includes continuous refrigerant leak detection, ATEX-
certifi ed ventilation in the electrical switchbox and both visual and acoustic alarms to alert operators to abnormal conditions. Safety systems are supported by an independent 230V power supply provided by the customer, ensuring monitoring devices remain operational even in the event of a main power supply failure. Additional protection features include factory-charged
refrigerant storage tanks to improve safety during transport and installation, mechanical safety valves to manage potential overpressure events, and controlled-discharge systems designed to release refrigerant safely outside the unit if required. The hydronic circuit is also protected: if a refrigerant leak is detected, the water circuit is automatically isolated to prevent refrigerant from spreading beyond the unit and to safeguard the wider system.
www.daikinapplied.uk
Sanhua has introduced its new DBF series of electronic expansion valves, designed to deliver precise, bidirectional refrigerant fl ow control for commercial air conditioning and heat pump applications. The valves feature a balanced fl ow port design that supports stable operation in reversible systems, along with a compact form factor suited to tight installation spaces. Their fast, energy- effi cient actuation helps optimise system performance across a broad refrigerant portfolio, including low GWP and fl ammable options such as R32, R290, R1234ze(E), and R1234yf. Fully compatible with Sanhua SEC controllers, the DBF series is positioned as a next-generation solution for OEMs seeking higher effi ciency, reliability, and fl exibility in modern heat pump and AC platforms.
www.sanhuaeurope.com/en
30 April 2026 •
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