Bitzer K373HB water-cooled condensing unit Kompresor ÿ ÿ Weight 37 kg 82 lb Total width 1140 mm 44, 9' Total height 322 mm 12, 7' Jacket tube diameter 159 mm 6, 3' Refrigerant inlet 28 mm - 1 1/ 8' 28 mm - 1 1/ 8' Refrigerant outlet 22 mm - 7/ 8' 22 mm - 7/ 8' Alternative refrigerant outlet 1 3/ 4' - 12 UNF 1 3/ 4' - 12 UNF Coolant inlet ( 2 passes) 2 x 3/ 4' 2 x 3/ 4' Coolant outlet ( 2 passes) 1' 1' Coolant inlet ( 4 passes) 3/ 4' 3/ 4' Coolant outlet ( 4 passes) 3/ 4' 3/ 4' Receiver volume refrigerant 14, 5 dm3 510, 3 fl.oz. Max. refrigerant charge 90% at 20° C R22 15, 8 kg 34, 8 lb R134a 16, 0 kg 35, 3 lb R407C 15, 1 kg 33, 3 lb R404A / / R507A 13, 9 kg 30, 6 lb Larger inlet connection 35 mm - 1 3/ 8' 35 mm - 1 3/ 8' Larger outlet connection -- -- Adapter for pressure relief valve Option Option 2 fixing rails ( above) Option Option 2 fixing rails ( below) Standard Standard