MHI Thermal Systems Expands Air-to-Water Heat Pumps for European Markets

19 Mar MHI Thermal Systems Expands Air-to-Water Heat Pumps for European Markets

(Oilandgaspress) – Mitsubishi Heavy Industries Thermal Systems, Ltd. (MHI Thermal Systems), a part of Mitsubishi Heavy Industries (MHI) Group, has expanded its lineup in the “Hydrolution EZY” series of air-to-water (ATW) heat pumps for the European market that utilize R290 natural refrigerant. New models with capacities of 10kW and 14kW have been added to the two existing 6kW and 7.1kW models to meet a wide range of needs in the region. MHI Thermal Systems plans to release the new models successively in European markets starting this spring.

ATW heat pumps extract heat from the air to supply cold and hot water for hot water supply, heating, and cooling. The monobloc type models added to the lineup have a water heat exchanger built into the outdoor unit, so only water lines need to be fitted, allowing for easier installation than split-type ATWs, which require refrigerant pipe connections. In addition, R290 refrigerant has an extremely low global warming potential of 0.02,(Note) and has been attracting attention, mainly in the increasingly tight regulatory environment of Europe, for its high energy efficiency and low environmental impact.

The newly added 10kW and 14kW models, like the 6kW and 7.1kW models, have the basic features of high temperature hot water supply, high efficiency, low noise, and safety. Modifications to components to be compatible with the new refrigerant, and the adoption of a new in-house developed compressor, allow the units to maintain a high flow temperature of 75℃ under a wide range of conditions, from an outside temperature of minus 25℃ to plus 43℃. The 10kW and 14kW models are also equipped with separate electronic expansion valves for heating and cooling, allowing for optimal control and high efficiency over a wide range. For low noise operation, the units have a double vibration isolation structure, a triple sound-absorbing structure, and a large fan, and can be set to quiet mode to further reduce operating noise, thereby providing flexibility to comply with noise regulations in densely populated residential areas. Additionally, the units have been designed with safety in mind, and are equipped with a refrigerant leak detection sensor.

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