Stage 1
Single-module operation. For use in ambient temperatures of 20°C – 27°C*.
*All temperature values refer to a chilled water outlet temperature of 18°C and above.
Bluezero – the technology in the eChiller
Our revolutionary and unrivalled Bluezero technology stands for sustainable innovation in refrigeration engineering. The technology, which uses water as a refrigerant, lets you save up to 80% energy costs – depending on your application – with almost zero CO2 emissions.
Water enters the eChiller evaporator. There, approximately only 1 % of the water evaporates in a vacuum atmosphere, which cools down the remaining water by about 6 K.
The ensuing water vapor is then compressed by the turbo compressors at up to 90,000 rpm to at most one third of its original volume, causing the pressure and temperature to rise.
In the condenser, the heated water vapor condenses directly into the circulating cooling water stream, which it heats up, also by about 6 K. The cycle is closed by a self-regulating expansion device.
The energy saving feature:
Thanks to the modular design of the echiller refrigeration system and the hydronic interconnection of the two modules, only those required to achieve the needed temperature lift go into operation.
Stage 2
Two-module operation. For use in ambient temperatures of 28°C*
*All temperature values refer to a chilled water outlet temperature of 18°C and above.
Free Cooling
Operation without mechanical cooling for use in ambient temperatures of 17°C or lower.
Free Cooling +
Operation with supplementary mechanical cooling. Transitional mode from FreeCooling to Stage 1. For use in ambient temperatures of 17°C – 20°C.
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Efficient Energy GmbH helps you master the challenges of refrigeration technology. With our eChiller model series, companies benefit in the long term and sustainably from an environmentally friendly solution, which impresses with its high cost efficiency.
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