Abstract: A water heating system includes a tank for holding water and a resistive heating element associated with the tank for heating water in the tank. A control is connected for monitoring at least one resistance parameter of the resistive heating element as power is applied to the resistive heating element, the control configured to output a fault signal if the monitored resistance parameter exceeds a set threshold. The monitored parameter may be one or more of (i) a rate of resistance change during heater start-up, (ii) a rate of resistance change during steady state heater operation or (iii) a heater resistance corresponding to a set point in time following heater start-up.

Abstract: The invention relates to a ware washer (40, 50) and to a method for operating a ware washer (40, 50) which is designed as a programmable machine (40) or as a conveyor ware washer (50) and which has at least one pump (11, 11-1, 11-2, 11-3, 11-4, 11-5, 11-6), at least one line system (12, 12-1, 12-2, 12-3, 12-4, 12-5, 12-6) connected to the pump (11, 11-1, 11-2, 11-3, 11-4, 11-5, 11-6), and at least one nozzle system connected to the line system (12, 12-1, 12-2, 12-3, 12-4, 12-5, 12-6) and having at least one nozzle (13, 13-1, 13-2, 13-3, 13-4, 13-5, 13-6, 13-7), a liquid being supplied at least intermittently to the at least one nozzle (13, 13-1, 13-2, 13-3, 13-4, 13-5, 13-6, 13-7) via the line system (12, 12-1, 12-2, 12-3, 12-4, 12-5, 12-6).

Abstract: A conveyor dishwasher (1) has at least one wash zone (6, 7, 8, 9) and at least one final-rinse zone (10), also a control arrangement (36) and a wash-ware detector (34) which can sense the type of wash ware which is to be treated. The control arrangement (36) assigns each type of wash ware sensed to a defined wash-ware group, selects automatically, for each wash-ware group, a defined treatment programme by which the type of wash ware assigned to the wash-ware group is to be treated in at least one of the treatment zones (6, 7, 8, 9, 10, 26) of the conveyor dishwasher (1), and sets the process parameters associated with the treatment programme selected.

Abstract: The invention relates to a dishwasher (1) in the form of a programmable automatic machine, which has a programme control device (50) for carrying out at least one treatment programme, a treatment chamber (2) into which and from which wash ware can be manually inserted and removed, a tank (4) into which fluid from the treatment chamber (2) can flow off by gravity, and a washing system (33, 8, 34, 10) with a washing pump (8) and with a washing line system (10) for conveying washing fluid (6) during a washing phase out of the tank (4) through washing nozzles (33, 34) into the treatment chamber (2).

Abstract: A conveyor warewasher (1) which having at least one washing zone (6, 7, 8, 9), at least one rinsing zone (10) and at least one drying zone (26) and also a control device (36). In order to achieve an effective cleaning and drying of the washware, along with as low a consumption as possible of resources in terms of water, chemicals and, in particular, energy, there is provision for the control device (36) to be designed for selecting a previously defined or definable program sequence at least in the at least one drying zone (26) and for setting the process parameters associated with the selected program sequence automatically as a function of the conveying speed at which the washware is conveyed through the treatment zones (6, 7, 8, 9, 10, 26) of the conveyor warewasher (1).

Abstract: A method, and related dishwasher, for cleaning wash ware that provides a wash phase followed by a rinse phase, in which rinse fluid is conducted into a treatment chamber (2) of the dishwasher (1). The rinse phase is composed of a fresh-water rinse phase and a steam rinse phase. During the fresh-water rinse phase, a rinse liquid is sprayed into the treatment chamber (2). During the steam rinse phase, steam is generated and conducted into the treatment chamber (2). A total of 0.5 to 2.0 litres of rinse fluid per unit area of 500 mm×500 mm, which is enclosed by the wall of the treatment chamber (2) in a top view of the treatment chamber, and preferably 1.0 to 1.7 litres of rinse liquid per unit area of 500 mm×500 mm, which is enclosed by the wall of the treatment chamber (2) in a top view of the treatment chamber, is sprayed into the treatment chamber (2) during the fresh-water rinse phase.

Abstract: Multitank conveyor-type dishwasher (2) for washing items (10) to be washed, comprising at least two wash zones (6, 8) which are arranged in succession in the conveying direction (4); a liquid forward-flow apparatus (26) between in each case two successive wash zones (6, 8) for transferring liquid between these wash zones (6, 8) in a forward-flow direction (28) counter to the conveying direction (4); characterized in that a liquid recirculation apparatus (60) is provided for transferring sprayed liquid of a front wash zone (8), as seen in the conveying direction (4), into a rear wash zone (6) which is arranged downstream of the front wash zone (8), as seen in the conveying direction (4), counter to the forward-flow direction (28).

Abstract: Conveyor ware washer comprising a water treatment device (70) for treating sprayed wash liquid in such manner that the treated liquid is of potable quality of water from the microbiological point of view and hence can be used as final rinse liquid or as part of a final rinse liquid.

Abstract: A dishwasher (2) has a detecting device (4) for sensing at least one condition indicative of need for self-cleaning of the dishwasher. The detecting device (4) emits a signal in this respect, for example, to an indicating device (6) or to a control device (8). The control device (8) is designed for executing a self-cleaning program, for controlling: a) a device for supplying self-cleaning liquid, b) a circulating pump for circulating the self-cleaning liquid in the dishwasher, for cleaning parts of the same, and c) a device for emptying the self-cleaning liquid from the dishwasher following the self-cleaning operation according to step b).

Abstract: Conveyor ware washer, comprising of a treatment device (70) for the treatment of sprayed final rinse liquid and/or post wash liquid, resp., so that the treated final rinse liquid and post wash liquid, resp. has the quality of potable water from the microbiological perspective and can be reused as final rinse liquid.

Abstract: Dishwasher in particular a commercial dishwasher and of these, in particular a conveyor dishwasher having an ozone-adding device (70) for adding ozone to the final rinse liquid.

Abstract: A conveyor-type dishwasher and related method of operation utilizes a recirculated spray solution for a spray operation of items to be cleaned and produces a control signal that is contamination dependent or time dependent to cause a filtering operation to be carried out on the recirculated spray solution or a regeneration operation to be carried out on the recirculated spray solution.

Abstract: A conveyor dishwasher dishwasher includes a wash liquid filtration line having a microfiltration unit or an ultrafiltration unit for filtering sprayed wash liquid of a wash zone, whereby the filtered wash liquid is recirculated back to the wash zone.

Abstract: A conveyor dishwasher includes a storage tank for holding sprayed final rinse liquid and a controllable liquid transfer device for transferring liquid from the storage tank to at least one wash zone as a function of a liquid demand in at least one of the wash zones.

Abstract: Commercial, one-chamber glassware dishwasher with an electrolysis apparatus for the creation of alkaline water, by means of which drinking glasses are cleaned without the addition of detergent.

Abstract: Conveyor-type dishwasher comprising a conveying apparatus having compartments which extend transverse to the conveying direction and serve to hold items to be washed. A rinse zone has at least one transversely directed lateral spray nozzle on at least one side each for spraying rinsing liquid onto the item to be washed. Furthermore, a sensor apparatus for items to be washed is provided for detecting empty compartments from among the large number of compartments of the conveying apparatus. A control apparatus is provided to automatically switch off the supply of rinsing liquid to at least some of the lateral spray nozzles of the rinse zone as a function of detected empty compartments, and to automatically switch on the supply of rinsing liquid to at least some of the lateral spray nozzles as a function of detected compartments which contain items to be washed.

Abstract: The invention at hand concerns a dishwasher, in particular a commercial front-opening dishwasher, with at least one dispenser intended for the provision of a liquid detergent additive. The one or more dispenser(s) feature(s) a storage container within a dishwasher housing. The dishwasher in accordance with the invention at hand should enable comfortable refilling of the storage container with a detergent additive. In accordance with the invention the dispenser features an inlet part for the storage container, which can be pulled or pivoted out of the dishwasher housing into the filling position.