BITZER Kühlmaschinenbau GmbH

Eschenbrünnlestr. 15, 71065 Sindelfingen

Telephone +49 7031 932-0
Fax +49 7031 932-147

Trade fair hall

  • Hall 17 / D65
 Interactive Plan

Hall map

EuroShop 2017 hall map (Hall 17): stand D65

Fairground map

EuroShop 2017 fairground map: Hall 17


Patrick Koops

Head of Public Relations

+49 (0) 70 31 932-43 27


Our range of products

Product categories

  • 03  Refrigeration systems
  • 03.02  Frozen food display cabinets, refrigeration systems, heat recovery systems

Our products

Product category: Refrigeration systems, Frozen food display cabinets, refrigeration systems, heat recovery systems

BITZER Condensing Units complying with the EU Ecodesign Regulation 2015/1095

The EU Ecodesign Regulation 2015/1095 for condensing units and process chillers for medium and low temperature application will go into effect in July 1, 2016, while the MEPS requirements (= Minimum Energy Performance Standards) will again be intensified significantly in July 2018.

BITZER has already implemented the necessary measures at an early stage in order to comply with or even exceed the efficiency criteria. For deliveries from the effective date, the (CE) Declaration of Conformity as well as supplementary documents for all product series will be available for download.

Read more about BITZER condensing units in connection with the EU Ecodesign Regulation 2015/1095 in the link below.

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Product category: Refrigeration systems, Frozen food display cabinets, refrigeration systems, heat recovery systems

BITZER is HFO-ready

Refrigerants with low global warming potential (GWP) are becoming more and more important in the refrigeration and air conditioning industry in Europe and beyond. And this trend will only accelerate over the next several years. BITZER is therefore not only further developing its compressors and condensing units for use with natural refrigerants such as CO2, ammonia, hydrocarbons and HFO/HFO blends, but also adapting its service to meet current requirements. BITZER has also promoted the qualification and documentation of its semi-hermetic and hermetic compressors, its condensing units and its water cooled condensers with HFO/HFO blends. BITZER’s reciprocating compressors, semi-hermetic and compact screw compressors, and scroll compressors for series application are currently HFO ready. BITZER’s CSH and CSW series have been approved for the R1234yf, R1234ze(E), R513A and R450A refrigerants since the beginning of 2016. BITZER has also further developed the ECOSTAR LHV5E and LHV7E condensing units with integrated ECOLINE VARISPEED reciprocating compressors. For instance, the LHV7E requires less refrigerant than its predecessor. BITZER has also optimised the LHV5E and LHV7E models in accordance with the F-gas Regulation and the EU’s Ecodesign Directive, and approved them for HFO/HFO blends.

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Product category: Refrigeration systems, Frozen food display cabinets, refrigeration systems, heat recovery systems

Efficient capacity controls for cost savings

Each application is unique, which is why BITZER refrigeration compressors, like the capacity controls, are specially tailored for specific requirements. With the CRII capacity control, the intelligent VARIPACK frequency inverters and the VARISPEED compressors, BITZER can offer several options – users can select the appropriate technology for their application. Both mechanical capacity control and capacity control based on speed adjustment have their specific benefits under the prevailing operating conditions. 
Frequency inverters fundamentally have a soft start characteristic combined with low starting currents when starting the compressor. What’s more, they don’t work in stages and are therefore the optimal solution in terms of control, as the desired evaporation temperature can be selected with the utmost precision. If part-load operation is the primary mode, systems with an electronic frequency inverter are more efficient than mechanical systems due to limited switch cycles. A disadvantage compared to mechanical capacity control: the investment costs for electronic frequency inverters are somewhat higher.

CRII: the inexpensive path to optimised capacity control
The CRII mechanical capacity control, which BITZER developed from its predecessor, the CR capacity control, is the entry-level model and an inexpensive variant. Now it boasts much fewer control deviations and a much larger range of control. Compared with compressors operated with frequency inverters, the CRII achieves somewhat lower efficiency levels in the lower part-load range and, despite the high switching frequency, poor control quality. However, this is of little importance when it comes to systems with several compressors and large-volume cooling positions. The modulation range for two, four and six-cylinder compressors is between 10 and 100 per cent and, for eight-cylinder compressors, between 50 and 100 per cent. One of the benefits of the CRII capacity control: electromagnetic compatibility is not an issue and the mechanical solution has no influence on network quality in buildings.

VARIPACK: flexible and simple
In combination with BITZER reciprocating compressors, VARIPACK frequency inverters are the flexible solution that can be used in just about any application. Specially developed by BITZER for use in refrigeration and for operation with refrigeration compressors, the external frequency inverters are particularly suitable for simple and reliable capacity control. BITZER software enables application-specific selection of the frequency inverter, whilst the BEST (BITZER Electronics Service Tool) software promotes simple operation and monitoring. Stored databases allow for complete, straightforward configuration of each compressor simply by selecting the compressor model and refrigerant. The new products offer reliability and convenience due to optimal coordination with BITZER refrigeration compressors. With its modular design, the VARIPACK series achieves a high degree of flexibility and opens up a wide spectrum of variants for a large range of applications in supermarkets, hotels, restaurants and food production and processing centres. The series is suitable for refrigeration, air conditioning and heat pumps and can be integrated into both systems with single compressors and compound systems.

VARISPEED: the compact solution
The VARISPEED product series is the most simple frequency inverter solution for small and medium-sized reciprocating compressors, as it represents a compact, reliable and convenient option: the suction gas-cooled frequency inverter and the compressor form a compact unit and all the components are factory mounted, making separate installation a thing of the past. The components are fully wired, optimised for EMC – refrigeration and air conditioning engineers don’t have to put any thought into mounting or the frequency inverter and motor wiring. Due to their special design, VARISPEED compressors can be operated at a frequency of up to 87 Hz. However, the VARISPEED series is not available for all BITZER ECOLINE compressors and the frequency inverters have limitations when it comes to the maximum evaporation and suction gas temperature. VARISPEED compressors are therefore not the first choice when it comes to many heat pump applications.

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About us

Company details

The BITZER Group is the world’s largest independent manufacturer of refrigeration compressors with sales companies and production sites for reciprocating, screw and scroll compressors as well as condensing units and pressure vessels all over the globe. BITZER products enable exceptional eco-efficient cooling systems and are designed for the latest low GWP refrigerants like CO2, HFO/HFO blends, ammonia and hydrocarbons.

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Company data

Number of employees




Area of business

Refrigeration systems

Company information as a PDF file