Industrial air coolers with a galvanized steel coil block. Suitable for cooling and freezing applications in medium to large cold rooms. Capacities 14 to 232 kW.     PBZZ series air coolers have been designed to operate as air coolers using ammonia refrigerant. PBZZ air coolers are also suitable for other refrigerants and heat transfer solutions. The models in the PBZZ range cover different applications in cold storaging and manufacturing processes. The heat transfer section is a hot-dip galvanized steel A1 element. Depending on the operation objective, there is a selection of 6 different fin spacings between 6 and 18 mm and additionally multi-fin spacings. - Refrigerants : ammonia (R-717), all H(C)FC, brine, CO2 - Nominal capacities : 13.7 - 232 kW (R717 pumped, T0= -8°C, DT1= 8K) - Air volumes : 11 up to 33.7 m3/s