Product News: Green & Clean

Screw Compressor is designed for energy efficiency.

Press Release Summary:

Dec 18, 2012 - With ESEER (European Seasonal Energy Efficiency Ratio) of over 5, CSV series intelligent compact screw compressor meets requirements of EMC directive. Variable speed with integrated frequency inverter maximizes energy efficiency, while refrigerant-cooled electronics promote operational reliability and maintenance-free operation. Used in chillers for air conditioning systems, in heat pumps, and in industrial and process cooling, product communicates with master control via Modbus.

Original Press Release

A Strong Performance: Top Energy-efficiency Levels in the New CSV Series

Press release date: Dec 12, 2012

• Compact screw compressor with integrated frequency inverter boasts an especially large range of control and high power density
• The CSV series sets new standards with an especially high ESEER (air cooled)
• An all-rounder for air conditioning systems, heat pumps, and process cooling

Flowery Branch, GA. Variable speed with integrated frequency inverter is the key to top energy efficiency in the new CSV series from BITZER. With an ESEER (European Seasonal Energy Efficiency Ratio) of over 5, the new intelligent compact screw compressor sets new standards for air cooled chillers with dry expansion.

The frequency inverter is integrated into the compressor in the CSV series, carefully finetuned in the factory, and configured for maximum efficiency. The compact unit takes up little space and meets the requirements of the EMC directive for industry, optional for residential areas. Thanks to the refrigerant-cooled electronics, maximum operational reliability and maintenance-free operation are ensured. This significantly reduces life cycle costs.

Minimal network load
The starting current is very low due to the soft-start function of the internal frequency inverter. Starting creates a steady increase in the operating current, without the usual current peak.

CSV series models are highly efficient specialists used in chillers for air conditioning systems, in heat pumps, and in industrial and process cooling. The CSV compressor becomes an allrounder thanks to its wide speed range and internal Vislider. The CSV series compact screw compressor communicates with the master control via Modbus.

Always under control
All CSV series models know their application limits. If preset parameters are exceeded, a warning message is first sent to the master system controller in order to enable correction. It only turns off in the case of constant or greater exceedance. The operator thus achieves maximum availability with minimum risk. The CSV series can of course also be combined with conventional BITZER CSH and CSW compact screw compressors in one system. This once again increases the flexibility with regards to full and part load performance both in system design and in operation.

BITZER currently offers three models in the CSV series, which are all designed for use with R134a refrigerant. For detailed info please contact

BITZER US, Inc. is a subsidiary of the BITZER Group of 32 companies. BITZER is the world’s largest independent manufacturer of A/C and Refrigeration compressors with sales companies and production sites for reciprocating, screw, and scroll compressors as well as pressure vessels all over the globe. In 2011, 2,966 employees generated sales of 632 million euros.