Commercial Compressors 31 in modern-day compressors


compressor series (4m³/h to 221m³/h).


These compressors are more versatile, and available not just for refrigerant R134a, but also R404A, R407A, R407C, R407F, R507A, hydrocarbons and the new HFO and HFO/HFKW mix.


For high-pressure R410A refrigerants, special Ecoline compressors can be specified. With the new Ecoline series, Bitzer has taken all the benefits of the original Ecoline series for R134a and applied them to a much wider range of applications. They offer higher


efficiency and can be used as a replacement part within existing refrigeration systems. The coefficient of


performance COP has been improved throughout the series by 6% in terms of the usual nominal points and as much as 12% for the low condensing temperatures


important for annual capacity (seasonal efficiency).


Motors


The compressors with motor version two are now universal refrigeration compressors for full low and medium temperature applications.


For example, when using R404A this has an evaporation temperature of up to 0°C, even at tropical ambient temperatures.


Motor versions one and three are provided for heat pumps, medium-temperature applications with R134a, and


special applications. Each new Ecoline is


compatible with its predecessor as it features an unaltered mounting hole pattern and the same pipe connections.


Optimisation New Ecoline


A number of design changes within the compressor have optimised the efficiency – higher cooling capacity with minimal energy requirements. The new Ecoline also serves as a basis for all Varispeed compressors and the well-known air- and water-cooled condensing units. As an optional


accessory, Bitzer offers tried-and-tested capacity control systems for the entire series.


All the compressors are also suitable for operation with external frequency inverters.


Comptec


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ACR News November 2013


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