Bitzer’s 4-Cylinder Ecoline for Supermarkets
For the first time ever, BITZER is now presenting an ECOLINE+ 4-cylinder reciprocating compressor, which – like the rest of the series – offers optimal efficiency both for full- and part-load and at the same time is very easy to integrate into refrigeration systems. BITZER has improved the entire series in three ways. The ECOLINE+ reciprocating compressors are now equipped with new line start permanent magnet motors (LSPM), an enhanced motor technology which forges ahead into better efficiency ranges. Mechanical capacity control for transcritical CO2 applications is also new. This enables systems which are just as efficient for full- and part-load as is otherwise only possible today when using frequency inverters. So that users can fully exploit the potential of this technology, BITZER has also developed a new operating concept with intelligent (IQ) modules. “For us, environmentally friendly refrigerants, energy efficiency and ease of use have top priority. And the new ECOLINE+ series shows that these are not contradictory,” says Rainer Große-Kracht, Chief Technology Officer at BITZER. “CO2 is one of the refrigerants of the future – we at BITZER believe that wholeheartedly. With ECOLINE+ we have succeeded in making efficient CO2 technology simpler and easier to understand. This is the only way that we can encourage the increased use of this pioneering refrigerant. With its global warming potential (GWP) of 1, CO2 is climate neutral and for just that reason it offers users long-term planning security. After all with this refrigerant it is easy to meet long-term legal requirements such as the F-gas Regulation and the Ecodesign Directive. Users can’t use CO2 more efficiently, more safely or more easily than with ECOLINE+.”
One of the most important innovations in the ECOLINE+ series is the enhanced line start permanent magnet motor, which increases annual performance figures by more than 10 per cent. These motors can be directly connected to 50 or 60 Hz electrical supplies and, whether for full- and part-load, they offer a completely new level of efficiency. Apart from that, permanent magnet motors are extremely robust and easy to use. Over the past five years, BITZER has tested this technology and has used them in selected systems in the field. Since October 2016 LSPM units have been used in production for CO2 applications.
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