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Flexibility has been designed into every aspect of the STULZ Explorer WSW and it has big cooling power in an incredibly small footprint. Depending on the required cooling capacity, the Explorer WSW chillers can be equipped with either one compressor offering a cooling capacity of 230-430kW, or two compressors that provide 460-1530kW. Further enhancing its ease of use, it can be easily adjusted to different heat loads thanks to its two refrigerant circuits with semi-hermetic screw compressors and infinitely variable output sliders.

The Explorer WSW features standardised components including shell and tube condensers that can be set to operate at different temperature levels, for example, with well water, cooling towers or external recooling heat exchangers. The evaporation process in the refrigerant circuit is controlled by electronic expansion valves, which use pressure sensors, temperature sensors and the STULZ C2020 controller to optimise heat exchange between the refrigerant and chilled water in the evaporator.

Following extensive customer consultation, STULZ identified clear demand for a compact, corrosion resistant device that emitted low levels of noise. These features are encapsulated in the Explorer WSW and for noise critical applications a version is available that has extra acoustic insulation that meets the sound power level requirements of ISO 3744 and reduces them by a further 10dB.

Thanks to its versatility, this latest innovation from STULZ also impresses with high efficiency in partial load mode. Depending on the service conditions, it can offer European Seasonal Energy Efficiency Ratio (ESEER) values of five or higher and also offers a variety of options such as automatic transfer switch, an energy meter for measuring total power consumption, soft start and anti-vibration mounts.