Commercial heavy-duty air coolers with a copper/aluminium coil block for general application in small to medium-size cooling and freezing rooms. Capacities 1.3 to 40.1 kW.     Helpman LEX coolers are commercial heavy-duty air coolers for general application in small to medium-size cooling and freezing rooms. Helpman LEX coolers are available from stock. - Evaporating temperatures : +5 to -40°C - Refrigerants: all H(C)FC - Nominal capacities: 1.3 - 40.1 kW (Eurovent SC2, higher on request) - Air volume: 1,080 up to 26,000 m3/h