High-Efficiency Reciprocating Compressors for Every Application

CO₂ (R744) is a future-proof refrigerant with negligible ozone depletion potential and very low global warming potential. It is widely used in commercial and industrial refrigeration systems, especially in transcritical and subcritical applications.

BITZER reciprocating compressors for CO₂ are designed for high operating pressures and enable reliable and efficient system operation. They can be combined in booster and cascade systems and support scalable system design.

Typical applications include:

• Low- and medium-temperature refrigeration 
• Air conditioning and heat recovery systems
• Large heat pumps

Displacement at 50 Hz:

• Transcritical applications: 3 to 99 m³/h
• Subcritical applications: 1 to 199 m³/h

Hydrocarbon refrigerants such as propane (R290), propene (R1270) and isobutane (R600a) are natural, halogen-free, and offer very low global warming potential. Their excellent thermodynamic properties make them suitable for a wide range of refrigeration and heat pump applications.

BITZER reciprocating compressors for hydrocarbons are designed for safe and efficient operation. Due to increased system tightness in accordance with EN 1127-1, no ATEX zone is required around the component.

Typical applications include:

• Commercial refrigeration 
• Process cooling 
• Air conditioning 
• Heat pumps

Displacement at 50 Hz:

4 to 221 m³/h 

Ammonia (R717) has been used in industrial refrigeration for decades and offers high efficiency with zero ozone depletion and no direct global warming impact.

BITZER open drive reciprocating compressors for NH₃ are designed for robust and reliable operation in demanding environments. With flexible drive options (coupling or belt), they support large-scale systems and industrial processes such as:

• Commercial refrigeration 
• Process cooling 
• Air conditioning 
• Marine operation

Displacement at 1450/min:

• 1-stage: 19 to 151 m³/h 
• 2-stage:

When it comes to HFC and HFO refrigerants, variants with a low global warming potential are becoming increasingly important. All BITZER reciprocating compressors are designed for refrigerants with a low GWP – for safety classes A1 and A2L, depending on the model.

The ECOLINE reciprocating compressors set the standard for applications using synthetic refrigerants and are suitable for: 

• Commercial refrigeration
• Low- and medium-temperature cooling
• Heat pumps
• Marine operation
• Special applications

Displacement at 50 Hz:

4 to 221 m³/h