Have you already seen it? In time for the Mostra Convegno Expocomfort 2012 Exhibition in Milan, the new customer magazine from BITZER made its debut. In future, this medium will twice a year offer you up-to-date information on refrigeration and air conditioning, explain trends and backgrounds. In its first issue, the journal looks at the topic of energy efficiency. One thing is abundantly clear: whether mobile or stationary - ecological footprints along the cooling chain and in air conditioning should be as small as possible. Read more about the energy-saving solutions from the technological leader BITZER and how they can benefit you. How to get your copy: simply send an e-mail with your contact data to redaktion@bitzer.de and we will send you a complimentary sample copy of "compact".

Enjoy reading!

E-Paper klick here!

BITZER compressors cool Maersk containers

The BITZER Kühlmaschinenbau GmbH is the world's leading manufacturer of transport compressors in the field of refrigeration and air-conditioning. During the container exhibition Intermodal in Hamburg in early December 2011, BITZER and Maersk Container Industry (MCI), a subsidiary of the world's largest shipping line, Maersk Sealand, again signed a five-year contract.

The StarCool unit which is installed in containers for the temperature control of perishable goods such as foods, is the result of intensive cooperation between MCI and BITZER. The electronic controls for the unit are manufactured by the Danish BITZER subsidiary LODAM.

The total worldwide container market for compressors is approx. 130,000 units. BITZER and MCI have attained a market share of approximately 30 per cent within seven years after entering the container segment. This positive development will also continue over the next years. The basis is a five-year contract which increases the number of units from 45,000 in 2012 to 69,000 in 2016. Overall, BITZER will supply over 300,000 motor-driven aluminum compressors to Maersk during the five-year period.

• Compact screw compressor with integrated frequency inverter delivers a convincingly good range of control and superb power density
• CSV series sets new standards with an ESEER (air-cooled) of more than 5
• Multi-talented system for the air conditioning of buildings, heat pumps and process cooling

Sindelfingen, 27.03.2012. Variable speed achieved with integrated frequency inverter - the key to optimum energy efficiency in the new CSV series from BITZER. With an ESEER (European Seasonal Energy Efficiency Ratio) of more than 5, the new intelligent compact screw compressors set new standards for air-cooled chillers with direct expansion.

In the CSV series, the frequency inverter is always integrated in the compressor, carefully matched ex-factory and configured for maximum efficiency levels. This compact unit takes up less space and satisfies the requirements in EMC guidelines for industry, and its optional counterparts for residential areas. Thanks to their refrigerant-cooled electronics, optimum operational reliability and low-maintenance operation are assured. This significantly reduces life cycle costs.
Minimal load on mains power source.  The Soft-Start function of the integrated frequency inverter keeps start-up current at very low levels. Once the system has powered up, operating current rises continuously and smoothly. This avoids peak current spikes. 
Versatile and practical.  The models in the CSV range are highly efficient specialists, used in chillers for the air-conditioning of buildings, in heat pumps and in industrial and process cooling applications. The CSV compressor owes its multiple talents to its wide speed control range and integrated Vi slide valve which adapts the variable Vi automatically to the prevailing operating point. The compact screw compressors in the CSV range constitute part of the plant system and they communicate via Modbus with the primary control unit.
Always under control.  All models of the CSV series know their application limits. Whenever specified parameters are exceeded, a warning message is first sent to the primary plant controller. Whenever the next limit value is exceeded, an alarm mode is activated. If the limit value is exceeded for an extended period of time, the compressor will automatically shut down to prevent the possibility of system failures. That enables the operator to obtain maximum availability at minimal risk.
The CSV series can, of course, be combined to form a system with conventional CSH and CSW compact screw compressors from the BITZER range. This increases flexibility in terms of full and part load characteristics, during the system planning stage as well as during the operational phase.

BITZER currently offers three models in the CSV series, all of which are designed to operate with refrigerant R134a. Performance data:

Cooling capacity up to bis 430 kW
(to = 5°C, tc = 50°C)
Control range    > 1 : 6
max. Fördervolumen  725 m³/h

Cooling capacity up to bis 350 kW
(to = 5°C, tc = 50°C)
Control range    > 1 : 5
max. Fördervolumen  595 m³/h

Cooling capacity up to bis 270 kW
(to = 5°C, tc = 50°C)
Control range    > 1 : 4
Max. displacement  458 m³/h

Tried and tested reciprocating compressors can now be used
in an even more versatile range of ways

• Greater energy efficiency
• Enhanced cooling capacity
• Extended application limits

Sindelfingen, 27.03.2012. At the Mostra Convegno Expocomfort trade fair in Milan, BITZER will be unveiling its extended range of BITZER ECOLINE reciprocating compressors. These compressors can now be used for an even more versatile range of applications. In addition to R134a, many other refrigerants can also be used, e.g. R404A, R407A, R407C, R407F and R507A. With this new range, BITZER has succeeded in leveraging all the benefits of the tried and tested BITZER ECOLINE series for refrigerant R134a for an even broader range of applications, as well as offering its customers significant added value. 

The extended BITZER ECOLINE range offers a great many product and efficiency benefits: With immediate effect, the compressors can deliver a 5-6% improvement in cooling capacity in medium temperature applications - and for low-temperature applications, these same compressors provide even more impressive improvements. At the same time, BITZER engineers have succeeded in increasing the coefficient of performance (COP) of this upgraded series by up to twelve percent for high as well as for low condensing temperatures. All compressors impress with substantially extended application limits when using refrigerant R404A and motor version 2 (medium and low-temperature applications), e.g. with condensing temperatures of up to +60°C and an evaporation temperature of 0°C.
Yet another attribute is the tremendous suitability of the new ECOLINE range for very favorable speed control by frequency inverter, a great bonus in terms of system efficiency. Irrespective of that, all 4 and 6-cylinder models can be equipped with cylinder head deactivation and this in turn delivers a very cost-effective form of capacity control. These measures already enable BITZER at this time to meet the foreseeable rise in requirements relating to energy consumption, while also meeting customer wishes for an exceptionally flexible range of compressors.

Versatile application options on a tried and tested platform
Thanks to the scope for using many of the commonly available refrigerants, these compressors cover a wide range of applications, and provide great added value to BITZER customers. BITZER ECOLINE compressors are used, for example, in medium and low-temperature applications in supermarkets, food storage facilities, condensing units, the chemical industry as well as large catering kitchens, the pharmaceuticals sector and in high-temperature heat pumps. All compressors in this upgraded range are based on the successful 2nd generation of semi-hermetic BITZER reciprocating compressors, for many years now a synonym for proven quality, great efficiency and reliability. For this recently upgraded range, BITZER has optimized the know-how gained from the successful ECOLINE series for R134a and made available for the use of other refrigerants. The tried and tested compressor platform has remained the same - which enables the updated BITZER ECOLINE range to completely replace the previous series. There are also no changes in the assembly hole pattern, the suction and discharge line connections and, in almost all cases, the valve position and installation space for the new series, compared to the standard range. This assures universal interchangeability.

In addition to the upgraded compressors in the ECOLINE range and the recently developed ORBIT 6 scroll compressors, BITZER will be unveiling a world first at the BITZER trade fair stand H29 K30.

Shilliday Refrigeration, winners of the Industrial and Commercial Project of the Year in the 2011 RAC Cooling Industry Awards, featured BITZER compressors in their winning installation.  With the focus on energy-efficient solutions, Shilliday’s simple, but cost-effective idea for a new centralized refrigeration system at Hewitt Meats won the award.

Shilliday is one of Northern Ireland’s leading refrigeration and air-conditioning contractors and the project covered a new centralized refrigeration system featuring a conversion from R22 and R404A to R134A and the specification of a compressor pack, with four BITZER  4FE-25.2Y ECOLINE, R134A compressors.  The facility for a fifth compressor was also included in the package by BITZER UK and supplied by RSL Ireland.

With a total capacity of 162 kW, the solution provided a COP of 3.0 in summer and 5.22 in winter.  Electronic expansion valves, EC fans on condenser and evaporators and RDM controls were added to the system for improved efficiency.  The solution resulted in a 19% drop in Hewitt’s energy bill over the period of a year, and a carbon footprint reduction estimated to be at least 80 tonnes a year.

BITZER customers can now download  the new version of the tried and trusted BITZER software from the website. The program provides data for BITZER compressors, condensing units and water-cooled condensers at a glance and offers an impressive level of user friendliness and wide choice of languages. Version 5.3.2 now also offers the following new features: it contains the data of the compressor series for transcritical CO2 applications and the liquid receivers of the A(NH3), K(CO2, R410A) and P(R290, R1270) series. It has also been extended to include the data for the CSH3 series and that of the new motor versions for ORBIT8 scroll compressors.