Abstract: A professional coffee machine includes a supporting frame; a boiler mounted thereon with a tank of at least 8 liters receiving water and heating it to a temperature of about 122-130° C. for the thermo-controlled production of pressurized steam; a preheater having a first heat exchanger associated to the boiler so that the boiler water heats, by heat exchange, the supply water crossing the first exchanger to a first temperature T1 that is lowerly close or substantially equal to a second temperature T2, optimal for preparing a coffee infusion; a dispensing unit of the coffee infusion having its own thermo-controlled heating element, configured to bring the water outlet from the preheater to the second temperature T2, if T1 is less than T2; a thermal insulating member that mechanically constrains the dispensing unit to the supporting frame; and a dispenser of pressurized steam in communication with the tank.

Abstract: A professional coffee machine includes a supporting frame; a boiler; a preheater to prepare a coffee infusion having a first heat exchanger with the boiler to heat the supply water crossing the first exchanger to a first temperature T1 close or substantially equal to a second temperature T2 corresponding to the optimal temperature for a coffee infusion; a dispensing unit of the coffee infusion having a thermo-controlled heating element that brings the water released from the preheater to the second temperature T2 if T1 is lower than T2; a thermal insulator that mechanically constrains the dispensing unit to the frame; a heater for preparing a tea infusion or the like having a second heat exchanger with the boiler to heat the supply water crossing the second heat exchanger up to a third temperature T3 corresponding to the optimal temperature for preparing a tea infusion or the like.

Abstract: A professional coffee machine includes a supporting frame; a boiler mounted thereon with a tank of at least 8 liters receiving water and heating it to a temperature of about 122-130° C. for the thermo-controlled production of pressurized steam; a preheater having a first heat exchanger associated to the boiler so that the boiler water heats, by heat exchange, the supply water crossing the first exchanger to a first temperature T1 that is lowerly close or substantially equal to a second temperature T2, optimal for preparing a coffee infusion; a dispensing unit of the coffee infusion having its own thermo-controlled heating element, configured to bring the water outlet from the preheater to the second temperature T2, if T1 is less than T2; a thermal insulating member that mechanically constrains the dispensing unit to the supporting frame; and a dispenser of pressurized steam in communication with the tank.

Abstract: A professional coffee machine includes a supporting frame; a boiler; a preheater to prepare a coffee infusion having a first heat exchanger with the boiler to heat the supply water crossing the first exchanger to a first temperature T1 close or substantially equal to a second temperature T2 corresponding to the optimal temperature for a coffee infusion; a dispensing unit of the coffee infusion having a thermo-controlled heating element that brings the water released from the preheater to the second temperature T2 if T1 is lower than T2; a thermal insulator that mechanically constrains the dispensing unit to the frame; a heater for preparing a tea infusion or the like having a second heat exchanger with the boiler to heat the supply water crossing the second heat exchanger up to a third temperature T3 corresponding to the optimal temperature for preparing a tea infusion or the like.

Abstract: A method for controlling and managing the water flow to a coffee machine provided with an ion exchange water softener device, characterised by: determining, on the basis of the hardness of the mains water and the type of resins, the maximum volume of water treatable by said resins before saturated, feeding mains water to the coffee machine through said water softener device while measuring said water flow, the value of which is compared with the maximum treatable water volume, and on noting that the water volume which has passed through said water softener corresponds to the memorized maximum treatable water volume, directly feeding the mains water to the coffee machine while by-passing said water softener device, and in the meantime, regenerating the resins with brine and washing said resins on termination of said regeneration, and finally, again feeding water to the machine via said water softener device.

Abstract: A method for controlling and managing the water flow to a coffee machine provided with an ion exchange water softener device, characterised by: determining, on the basis of the hardness of the mains water and the type of resins, the maximum volume of water treatable by said resins before saturated, feeding mains water to the coffee machine through said water softener device while measuring said water flow, the value of which is compared with the maximum treatable water volume, and on noting that the water volume which has passed through said water softener corresponds to the memorized maximum treatable water volume, directly feeding the mains water to the coffee machine while by-passing said water softener device, and in the meantime, regenerating the resins with brine and washing said resins on termination of said regeneration, and finally, again feeding water to the machine via said water softener device.