| 摘要 |
<p>A dishwashing machine comprises a base (2), a wash tub (3) supported by the basement (2) and a control system (EC). The control system (EC) is prearranged for controlling execution of a plurality of dish-treatment programs, amongst which at least one first treatment program which includes a first operative phase, particularly a wash phase, a second operative phase, particularly a first rinse phase, a third operative phase, particularly a second rinse phase. In the housing space (2a) is housed a storage container (30) having an inlet (31) and an outlet (32) and at least one portion (13a) of the first supply duct (13) extends in the inside of the storage container (30), for obtaining therewith a substantially static heat exchanger. The machine (1) comprises first means (22, 23, 26, 40; 22, 23, 26; 22, 26, 60), for supplying the storage container (30) with water used in the first operative phase, and second means (27, 28), for emptying from the storage container (30) water contained therein. The machine (1) further comprises a second supply duct (33), in parallel to one of the first supply duct (13) and the said portion (13a) of the first supply duct (13), for supplying in the tub (3) water from the water mains (R), to the second supply duct (33) there being operatively associated valve means (17'; 34). The control system (EC) is configured for
- controlling said first means (22, 23, 26, 40; 22, 23, 26; 22, 26, 60), for discharging in the storage container (30) heated water used during the first operative phase,
- controlling the valve means (17'; 34) associated to the second supply duct (33) for supplying in the tub (3) water from the water mains (R), for the purposes of execution of the second operative phase, in such a way that, during execution of the second operative phase, heated water discharged in the storage container (30) yields heat to water contained in said portion (13a) of the first supply duct (13),
- controlling the drain pump (24) for discharging from the tub (3) the water used in the second operative phase,
- controlling the valve means (17, 34; 17') associated to the first supply duct (33) for enabling transfer in the tub (3) of water contained in said portion (13a) of first supply duct (13), and
- controlling said second means (27, 28) for the purposes of emptying from the storage container (30) the water contained therein.</p> |
