... -BF4.0Z, NJ-BF5.0Z:Copeland semi-hermetic piston compressor, oil separators, air-cooled condenser, axial flow fan, liquid reservoir, filter drier ... -BF10Z, NJ-BF20Z, NJ-BF25Z:Copeland semi-hermetic piston compressor, oil separators, air-cooled condenser, axial flow fan, liquid reservoir, filter drier ...