... hermetic reciprocating compressor, F means air cooled, S means water cooled. Applicable for med-high temperature and med-low ... Semi-hermetic reciprocating compressor2. With full range, air cooled & water cooled, med-high temp & med-low temp.3. ... temperature 40oc5. Wide application, suitable for different refrigerant.6. Optional configuration is acceptable. Bitzer water-cooled condensing unit