BITZER Kühlmaschinenbau GmbH
Semi-Hermetic Reciprocating Compressors
ECOLINE
Semi-hermetic reciprocating compressors for applications in commercial refrigeration with low, medium and high evaporation temperatures, in heat pumps and special applications: depending on the combination of motor and refrigerant.
A successful synthesis of well balanced drive gear mechanics, motors with high efficiency over a broad range, as well as optimised gas flow in the suction and compression process.
Together with minimum flow losses and reduced heat transmission from the hot gas to the suction gas side this results in the unique operating characteristics.
The Cylinder Head System
Smooth operation of the optimised working valves including the newly developed geometric concept of the discharge valves for minimal reexpansion in conjunction with the flow channels and coupled volumes.
Refrigerants with Low Global Warming Potential
All EXOLINE compressors can be used with new refrigerants of low global warming potential (GWP). These refrigerants are important tools to reach the emission reductions of the EU Regulation 517/2014 and similar scenarios enacted worldwide. Their application is in line with our innovation targets.
The hydrofluoroolefins (HFO, unsaturated fluorinated hydrocarbons) R1234yf and R1234ze(E), two variants of tetrafluoropropene, play a central role. They can be used as pure substance or as components of blends. The pure substances R1234yf and R1234ze(E) are flammable in safety class A2L according to ISO817.
For the environmentally friendly refrigerant R290 propane, special compressor types are available. For flammable refrigerants, a risk assessment for the system must take flammability into account. The system must be constructed in accordance with national or local regulations. If the risk assessment classifies the installation area as an explosion protection zone, the standard compressors cannot be used. For installation in ATEX zones 1 and 2, special explosion-proof compressor versions have been designed. Consultation with BITZER is absolutely necessary.
