W-4H-15.2 obsolete/ replaced by 4HE-18Y-40P 400V 4HE-18Y-40P 400V LH135E/4PES-15Y 400V Type: 6F-50.2 Y, SN: 662502306 obsolete/replaced by 6FE-50Y-40P;Low Pressure Compressor; 6FE-50Y-40P LH135E/4PES-12Y 400V OSKA 8591-K NH3 OSKA 8571-K NH3 OSKA 7471-K NH3 obsolete/replaced by OSKA 7472 NH3 OSKA 7441-K NH3 obsolete/no replacement 4NSL-30K-40P 400V 4DSL-10K-40S 400V Spare parts for OSKA 8591-K NH3 Spare parts for OSKA 8571-K NH3 Spare parts for OSKA 7471-K NH3 Spare parts for OSKA 7441-K NH3