Claiming that it has higher efficiency and an expanded range of applications, Bitzer has announced introducing New Ecoline range of reciprocating compressors comprising semi-hermetic models (4.1 to 221 m³/h at 50 Hz), semi-hermetic, two-stage models (19.7 to 101 m³/h at 50 Hz), open models (19.7 to 151.6 m³/h at 1,450 U/min.), Ecoline R134a compressors (34.7 to 152 m³/h at 50 Hz), Varispeed compressors (8 to 99 m³/h at 50 Hz) and condensing units (4.1 to 151.6 m³/h at 50 Hz).

The manufacturer lists the following product features and benefits:

• Reciprocating compressor series (4 to 221 m³/h) is an “omnivore” in terms of refrigerants, as it can be made available for refrigerants other than R134A, such as R404A, R407A, R407C, R407F, R507A, hydrocarbons and the new HFO and HFO/HFKW mix. The exceptions are the high-pressure CO2 and R410A refrigerants, for which special compressor models are required.
• The coefficient of performance (COP) has been improved throughout the series by six per cent in terms of the usual nominal points and even up to 12% for the low condensing temperatures important for annual capacity (seasonal efficiency).
• With motor version 2, it can be used in low-temperature applications and medium-temperature applications with, for example, R404A, which has an evaporation temperature of up to 0°C, even at tropical ambient temperatures.
• Motor versions 1 and 3 are provided for heat pumps, medium-temperature applications with R134A, and special applications.
• It can even be used as a replacement part in existing systems.
• It is compatible with its predecessor compressor, as it features an unaltered mounting hole pattern and the same pipe connections – with efficiency gains even when repairing existing systems.
• A newly designed compressor plate optimises the efficacy (higher cooling capacity with minimal energy requirements).
• All the compressors are also suitable for operation with external frequency inverters.