... BF5.0Z:Copeland semi-hermetic piston compressor, oil separators, air-cooled condenser, axial flow fan, liquid reservoir, filter drier ... NJ-BF25Z:Copeland semi-hermetic piston compressor, oil separators, air-cooled condenser, axial flow fan, liquid reservoir, filter drier ... Copeland semi-hermetic piston compressor air-cooled medium temperature condensing unit