Water purifier with ice-maker

An ice-making water purifier, comprising:

• a filter unit having at least one filter configured to generate purified water;
• an instantaneous heater
• having a water inlet through which purified water is filtered by the filter unit and a water outlet through which purified water is heated and discharged, and
• being configured to heat the purified water flowing into the water inlet, wherein hot water is discharged through the water outlet;
• an extraction member located above the instantaneous heater and extracting the hot water discharged from the instantaneous heater by opening a hot-water extraction valve;
• an ice-maker configured to receive the purified water filtered by the filter unit and to produce ice;
• a supply pump configured to operate the purified water filtered by the filter unit to the instantaneous heater and the ice-maker;
• an ice-maker water inlet passage branched from a passage connecting the supply pump and the instantaneous heater to be connected to the ice-maker;
• an ice-making water supply valve provided in the ice-maker water inlet passage configured to be opened to supply the purified water filtered by the filter unit to the ice-maker;
• a flow rate sensor installed upstream of a point at which the ice-maker water inlet passage is branched configured to measure a flow rate of purified water supplied from the filter unit to the instantaneous heater and the ice maker, respectively;
• and
• a controller configured to control driving of the supply pump and opening and closing of the ice-making water supply valve such that purified water corresponding to a predetermined supply amount of ice-making water is supplied to the ice-maker on a basis of a flow rate value measured by the flow rate sensor, wherein
• the controller is configured to control opening and closing of the passage such that purified water is supplied to the instantaneous heater among the instantaneous heater and the ice-maker,
• when an ice-making signal for producing ice in a state in which purified water is input to the instantaneous heater, the controller is configured such that purified water is not supplied to the ice-maker, and
• the controller is configured to open the ice-making water supply valve after the supply of purified water to the instantaneous heater is finished, such that purified water corresponding to the supply amount of the ice-making water is supplied to the ice-maker.