A refrigerator includes a cabinet with one or more food compartments and one or more doors closing the food compartments and an ice maker located in the cabinet to produce ice. The ice maker includes a mold body for forming ice, the mold body having multiple cups, where each cup has an opening for receiving water to be frozen within the cup. The mold body is divided into at least a first zone and a second zone and the ice maker including at least a first heater and a second heater configured to provide heat to the first and second zones of the mold body, respectively, and a controller configured to harvest ice from the first zone independently of the second zone by actuating the first heater to provide heat to the first zone of the mold body to facilitate a release of ice from the first zone.

An ice maker and a refrigerator having same. The ice maker comprises: a cooling part having a heat dissipation device and a metal piece; a liquid container configured to store liquid; a liquid supply part configured to supply liquid to the liquid container; a moving mechanism configured to rotate and move the liquid container; and a control part. The metal piece is mounted, so that a rod-shaped component made of metal extends downward from a base end to the tip, and the rod-shaped component is cooled by means of the heat dissipation device. The ice-making process is repeated multiple times under the control of the control part, and the following steps are carried out in the ice-making process: a liquid supply step, an ice making step, an avoidance step, a deicing step, and a recovering step. The ice maker can make ice within a short period of time.

A method of making clear ice includes circulating a refrigerant through a refrigerant loop. A portion of the refrigerant loop is in contact with a mold body. Thus, the refrigerant chills the mold body. The method also includes spraying a first volume of liquid water into a mold cavity of the mold body. As a result, a first volume of ice is formed in the mold cavity. The method also includes spraying a second volume of liquid water into the mold cavity after the first volume of ice has formed. Thus, a portion of the first volume of ice is melted and a second volume of ice is formed in mold cavity. The clear ice includes an unmelted portion of the first volume of ice and the second volume of ice.

A water purifier includes a water purification unit, and an ice making unit. The water purification unit includes: a water filter for filtering introduced raw water to provide the purified water and unfiltered living water; a purified water tank including a first storage for storing unfiltered water, a second storage for storing the purified water discharged from the water filter, and a separation membrane formed of an impermeable material which independently partitions the first storage and the second storage and has elasticity, wherein the second storage shrinks when the first storage expands, and the first storage shrinks when the second storage expands; a flow channel connecting the water filter, the purified water tank, and the ice making unit to provide a passage through which the raw water, the living water, and the purified water flow; and a valve unit including a plurality of valve modules.

A batch ice maker can execute a pulsed fill routine in which a control system pulses water from a water supply into the sump until the sump reaches a predefined freeze routine starting level. Pulsing may begin after continuously filling the sump to a fill-approach level. A batch ice maker can execute a differential freeze routine in which the control system circulates water from a sump to an ice formation device until water level decreases by a predefined differential amount from a high control water level based on the water level in the sump at a point in time after the sump was filled to a freeze routine starting level. The high control water level can be set based on water level in the sump when sump water temperature reaches a predefined pre-chill temperature. The predefined pre-chill temperature can be associated with a switchover from sensible cooling to latent cooling.

A food preservation system including a refrigerator and a freezer, wherein the refrigerator and freezer are independent from each other; the refrigerator comprising a fresh food compartment; the freezer including an icemaker and means for receiving filtered water; a water filter located in the fresh food compartment; a water supply line leading into an inflow side of the water filter; a refrigerator inlet valve connected to an inlet side of the water filter and a water distribution valve, wherein the water distribution valve comprises an auxiliary icemaker water valve, the distribution valve connected to an outflow side of the water filter; tubing connecting an outflow side of the auxiliary icemaker water valve to the icemaker; and a refrigerator main controller, wherein the refrigerator main controller is in operable communication with the refrigerator inlet valve and the auxiliary icemaker water valve is provided, Methods to make ice with filtered water are also provided.

An ice maker includes: an upper tray defining an upper chamber that is a portion of an ice chamber, where an upper opening is provided in an upper side of the upper tray; a lower tray defining a lower chamber that is another portion of the ice chamber; a lower support supporting the lower tray and provided with a lower heater; and a control unit configured to operate the lower heater in an ice making process. The control unit variably controls an output of the lower heater so that bubbles included in water in the ice chamber are gathered in a lowermost section in the ice making process.

An ice maker for forming ice having a refrigeration system, a water system, and a control system. The refrigeration system includes a compressor, a condenser, an ice formation device, and a condenser fan comprising a fan blade and a condenser fan motor for driving the fan blade. The water system supplies water to the ice formation device. The control system includes a controller adapted to operate the condenser fan motor at a first speed in a forward direction when the ice maker is making ice and adapted to operate the condenser fan motor at a second speed in a reverse direction when the ice maker is not making ice. Operating the condenser fan motor at the second speed in the reverse direction is sufficient to reduce the amount of dirt, lint, grease, dust, and/or other contaminants on or in the condenser.

An ice maker includes a carriage, an ice mold defining a plurality of cavities that is movably coupled to the carriage such that the ice mold is movable relative to the carriage between a home position and a harvest position, and a detection lever movably coupled to the carriage such that the detection lever is movable between a retracted position and an extended position, the detection member being biased toward the extended position. The ice maker further includes a retention mechanism configured to retain the detection lever in the retracted position when the ice mold is in the harvest position.

A method may include selecting a first set of values for a first set of parameters of one or more hardware components of an ice-making machine; identifying a water temperature at a water inlet of the ice-making machine; identifying an ambient air temperature surrounding the ice-making machine; calculating a second set of parameters of the ice-making machine based on at least a portion of the first set of values, the water temperature and the ambient temperature, the second set of parameters corresponding to operation of the ice-making machine in a freeze mode in which liquid water is cooled by an evaporator; and calculating a third set of parameters based on at least a portion of the first set of values, the water temperature and the ambient temperature, the third set of parameters corresponding to operation of the ice-making machine in a harvest mode.