... 0Z, NJ-BF5.0Z:Copeland semi-hermetic piston compressor, oil separators, air-cooled condenser, axial flow fan, liquid ... NJ-BF20Z, NJ-BF25Z:Copeland semi-hermetic piston compressor, oil separators, air-cooled condenser, axial flow fan, liquid reservoir ... pressure controls, motor overheat protector, cylinder end cooling fan, junction box(IP55). Technical parametersmodelcompressorAir-cooled condenserInput ...