BELGIUM: Daikin is about to launch its latest range of Altherma 4 heat pumps with versions using R454C and R290 (propane) refrigerants.

Daikin says the new range of air-to-water heat pumps is a response to REPowerEU, the European Commission’s plan to make Europe independent of Russian fossil fuels, and to Europe’s HFC phase-out.

R454C with GWP 148 is a mixture of A2L R32 and 1234yf. According to Daikin, the use of this lower GWP refrigerant offers a wide range of installation options, making it suitable for use in a variety of residential building types across Europe. R290, better known as propane, is an A3 refrigerant with a GWP of just 3.

The first series, the Daikin Altherma 4 H Standard, will be launched in 2024 in sizes from 4kW to 8kW. The heat pump with an operating range down to -25ºC is reportedly suitable for various European countries and can be used for various types of heat distribution systems, from underfloor heating to radiators. Outlet water temperature up to 65ºC.

The second series is the Daikin Altherma 4 H Quiet, powered by R290, with a power of 8, 10 and 12 kW. As the name implies, the main feature of this series is the particularly low noise level. Producing water temperatures up to 70ºC, it will be available in both single-phase and three-phase versions.

Daikin says it will offer propane in certain product lines where the entire refrigerant circuit is installed outdoors and where safety regulations allow it. As with other refrigerants, Daikin will also apply specific safety measures to R290 units, taking into account the entire life cycle of the units.

The Daikin Altherma 4 series was developed in Europe for the European market. It is said that special attention was paid to the use of local components to limit the footprint throughout the life cycle. To optimize performance, several components are produced by European suppliers specifically for Daikin.