Patent ID: 8095242

Claim:
A method for controlling the operation of a device for dispensing hot liquid, the method comprising a transporting system for the acts of: transporting liquid through the device by a transporting system using a pump; heating the liquid by a heater in a boiler having an inlet for receiving cold liquid and an outlet for outputting the hot liquid, wherein the boiler includes a separation layer between the hot liquid and the cold liquid; monitoring at least one physical property which is influenced by a displacement of the liquid inside the transporting system; when the heater is in an activated condition, putting the heater from the activated condition to a deactivated condition when a value of the physical property reaches a predetermined value; providing a first pumping circuit having a first sensing member and a second pumping circuit having a second sensing member, wherein the first sensing member and the second sensing member are configured to sense a temperature of the separation layer in the boiler; selecting one of the first pumping circuit and the second pumping circuit; deactivating the pump when the temperature sensed by the first sensing member reaches the predetermined value when the first pumping circuit is selected; and deactivating the pump when the temperature sensed by the second sensing member reaches the predetermined value when the second pumping circuit is selected; wherein the first sensing member is further away from the inlet than the second sensing member so that a larger quantity of the hot liquid is provided when the first pumping circuit is selected compared to a quantity of the hot liquid when the second pumping circuit is selected.