Press: Heat exchangers with Eco-Mode controls help save electricity

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.

(2,309 characters)

*******

Rittal GmbH & Co. KG

Rittal GmbH & Co. KG, which has its headquarters in Herborn, Germany, is one of the world's leading system suppliers for enclosures, power distribution, climate control, IT infrastructure and software & services. Customers from all sectors of industry, from mechanical and plant engineering, as well as from the IT and telecoms market are making use of system solutions from Rittal.

Its broad product range also includes complete solutions for modular and energy-efficient data centres: from innovative security concepts for data systems (formerly known as Litcos) through to physical data and system security for IT infrastructures (formerly known as Lampertz). The leading software providers Eplan and Mind8 - Rittal subsidiaries - are supplementing the Rittal product portfolio with interdisciplinary engineering solutions.

Founded in 1961, Rittal is now active worldwide with 10 production sites, 63 subsidiaries and 40 agencies. With 10,000 employees worldwide, Rittal is the largest company of the proprietor-run Friedhelm Loh Group of Haiger, Germany. The entire group employs 11,500 people and expects to generate revenues of € 2.2 billion in 2011.

Further information at www.rittal.com and www.friedhelm-loh-group.com.