New Copeland Reciprocating and Scroll Compressors for CO2 as Refrigerant
New Copeland Reciprocating and Scroll Compressors for CO2 as Refrigerant

AACHEN, GERMANY, October 14, 2010— Emerson Climate Technologies presents the Copeland® series of Stream compressors for CO2-transcritical applications. In addition, the ZO series of scroll compressors has been expanded with new models for CO2-subcritical applications. With the combination of these two compressor series Emerson Climate Technologies offers the most energy efficient package available on the market today.

With the launch of the Stream series at Chillventa 2010, Emerson Climate Technologies presents its new semi-hermetic reciprocating compressors for R-744 refrigerant. Stream is characterized by a design pressure of 135 bar and is designed for evaporating temperatures ranging from 0°C to -20°C, which makes it ideal for R-744 medium temperature cascade and booster systems. The three initial models – 4MTL-10, 4MTL-15, and 4MTL-25 – provide refrigeration capacities of 18 kW, 24 kW and 35 kW, respectively. These models are released for operation with frequency inverters from 25 to 75 Hz.

With Stream, Emerson’s new CoreSense™ technology is also presented since it performs advanced diagnostics on board the Stream compressors. Service engineers now have a simple solution to diagnose system related problems faster or even before they occur in order to keep the refrigeration system in optimum condition over its entire lifetime.

Two years ago, Emerson Climate Technologies presented the ZO series of Copeland Scroll™ compressors for subcritical low temperature operation in cascade and booster systems with R-744. This series has now been expanded to include the new ZO88K3E with a refrigeration capacity of 20 kW.

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About Emerson
Emerson (NYSE: EMR), based in St. Louis, is a global leader in bringing technology and engineering together to provide innovative solutions to customers through its network power, process management, industrial automation, climate technologies, and appliance and tools businesses. Sales in fiscal year 2009 were US$20.9 billion. For more information, visit

About Emerson Climate Technologies
Emerson Climate Technologies, a business of Emerson, is the world’s leading provider of heating, ventilation, air conditioning and refrigeration solutions for residential, industrial and commercial applications. The group combines best-in-class technology with proven engineering, design, distribution, educational and monitoring services to provide customized, integrated climate control solutions for customers worldwide. Emerson Climate Technologies’ innovative solutions, which include industry-leading brands such as Copeland Scroll™ and Alco Controls, improve human comfort, safeguard food and protect the environment. For more information, visit

Achim Frommann
Media, Communication & Relations
Emerson Climate Technologies GmbH,
Pascalstr. 65, 52076 Aachen, Germany
T: +49 (0) 2408 929 0
F: +49 (0) 2408 929 570