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Active refrigerating machines are required when no low temperature level is available that can be utilized for cooling purposes. However, as the outside air temperature is very often below the desired process temperature, it is also possible to relieve the refrigerating machine by including a free-cooling system.

In this process, the cold external air is led via ventilators to a register through which the process medium passes so that, depending on the temperature level, the active refrigeration circuit can be shut off in parts or even entirely, entailing a reduction of operation costs of up to more than 60%, depending on the installation location.

The payback period for such a system can be determined for a specific project as part of the business case.

KKT chillers’s Energy Saving Systems can be incorporated in a variety of ways and can be applied and optimized for the specific demand.