Sustainable refrigeration technology developer Efficient Energy GmbH has launched its next generation of eChiller chilled water units. The eChilller120 offers 120 kW cooling capacity with no direct carbon dioxide emissions. The Bluezero® technology that uses water as a refrigerant now makes clean cooling viable for applications requiring higher cooling capacities.

A conventional refrigeration system with a commercial synthetic refrigerant and 30 kW cooling capacity generates 24 metric tons of CO₂ a year through refrigerant leakage and power consumption. The eChiller, by contrast, generates only around 7 metric tons through electricity consumption, equivalent to a reduction in Source: Efficient Energy GmbHemissions of over 70%.

The eChiller120 is suited for process cooling, machine cooling and technical air conditioning and can be used in the automotive, rubber and plastics industries or for cooling data centers, control cabinets and server rooms. The system is filled once with softened tap water as a refrigerant, which is then used in a closed circuit for refrigeration. The turbo compressor developed by Efficient Energy GmbH has been enlarged and integrated directly into the braze plate heat exchanger module, significantly increasing the efficiency of the refrigeration system.

Despite its higher performance, the eChiller120 achieves a comparably low noise level, like the smaller eChiller35/45. A further innovation is the strategic introduction of various configuration options, including an optional housing and free cooling module, a module for extending the part load and other possibilities for controlling system peripherals.

The eChiller120 can be easily connected to an existing cooler and supports energy-optimized cooling control. For even greater cooling requirements, the eChiller120 can be configured in a cluster, with its modular, scalable design and an optionally integrated cluster control system making cooling capacities of over 500 kW achievable. Delivery of the eChiller120 will begin in summer 2021.