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