Heat Exchangers with Eco-Mode Controls Help Save Electricity

Developments made by Rittal show that even greater energy efficiency potentials are possible with liquid-based cooling systems. The specialist climate control has now trimmed all the components of its current air/water heat exchanger for greater energy efficiency. The new intelligent Eco-Mode controls are now used with Comfort devices that have cooling outputs of 500 W to 5,000 W.

In many cases, simple fan-and-filter units are often not enough to dissipate high heat loads from enclosures. Alongside modern compressor cooling units, which also cool with air, liquid-based cooling systems offer major advantages, depending on the application concerned. Recent developments in heat exchangers show about that a lot has happened in terms of energy efficiency, assembly handling, and availability.

To increase the energy efficiency of the entire cooling system, Rittal has improved its current air/water heat exchangers. New and intelligent Eco Mode controls are now used with Comfort units with cooling outputs of 500 W to 5,000 W. They turn the fan off or on as needed, depending on the temperature in the enclosure. If the internal temperature falls 10° C below the set temperature, the fan switches off. In order to measure the effective internal temperature of the enclosure, the control system switches on the fans for 30 seconds every ten minutes, so ensuring a circulation of air in the enclosure.

The new units also offer assembly benefits: They can be mounted to the enclosure in less than two minutes. The heat exchangers are held in place by simply snap-fitting them to pre-mounted fixtures. Only two screws are needed to fasten the devices securely. Assembly is performed entirely from outside, without the fitter having to fasten the air/water heat exchanger from within.

Rittal has also improved the water connections: Alongside standard connections with flexible hose and plug-in joints and couplings, other types of joint are available such as internal threads, quick-release fasteners, direct hose ports or Ermeto quick-release systems. Such simplifications in handling lead to savings in time during commissioning and operation and cut costs.


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