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York brings R454B heat pump to US market

USA: Johnson Controls has adopted the lower GWP R410A alternative R454B for its next generation York YMAE air-to-water heat pump for the North American market. 

An A2L lower flammability refrigerant, R454B is a blend of R32 and R1234yf with a GWP of 466.

An inverter scroll modular heat pump, the YMAE will be offered in single and packaged-module configuration in capacities from 123kW to 492kW.

In line with the US EPA’s AIM Act to phase down HFCs, Johnson Controls says it will use R454B across all its York scroll compressor products. 

The York YMAE is said to feature all new hardware, including new-to-market, electronic vapour injection (EVI) scroll compressors, updated heat exchangers and an optimised frame. 

EVI technology significantly improves system capacity and efficiency and allows the YMAE to provide high water temperatures at low ambient conditions.

The YMAE comes in two-pipe and four-pipe versions and serves a wide range of applications. 

Its modular design allows up to four modules to be kitted together, factory-tested and shipped as a single unit, simplifying installation and speeding up commissioning. 

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