Abstract: A water heater appliance includes a tank extending along a vertical direction between a top end wall and a bottom end wall and a dip tube extending from an inlet end to an outlet end. The inlet end of the dip tube is coupled to a cold water inlet in the top end wall of the tank. The outlet end of the dip tube may be positioned in a bottom corner of the tank and/or positioned at an outer perimeter of the bottom end wall.

Abstract: A water heater appliance includes a tank extending along a vertical direction between a top end wall and a bottom end wall and a dip tube extending from an inlet end to an outlet end. The inlet end of the dip tube is coupled to a cold water inlet in the top end wall of the tank. The outlet end of the dip tube may be positioned in a bottom corner of the tank and/or positioned at an outer perimeter of the bottom end wall.

Abstract: A mixing valve for a water heater appliance includes a valve body that defines a mixing chamber, the mixing chamber being in fluid communication with a cold water inlet conduit and a hot water inlet conduit. The cold water inlet conduit defines a profiled junction defining an inlet orifice and a plunger valve is mounted within the valve body and is moveable relative to the inlet orifice to regulate a flow of water through the inlet orifice. A distal end of the plunger valve defines a profiled sealing face, the profiled sealing face and the inlet orifice being cooperative to permit a flow rate that is substantially proportional to a valve position.

Abstract: An electric water heater appliance is provided herein. The electric water heater appliance may include a tank, an electric heating element, and a temperature sensor. The tank may define an interior volume extending from a top portion to a bottom portion. The interior volume may define a volume height along a vertical direction between the bottom portion and the top portion. The electric heating element may be operable to heat water within the interior volume. The temperature sensor may be attached to the tank above the electric heating element. A sensor gap may be defined along the vertical direction between the electric heating element and the temperature sensor.

Abstract: A method for defrosting an evaporator of a sealed system includes determining that a defrost cycle is needed to remove frost from the evaporator and initiating such a defrost cycle. The method further includes determining that the defrost cycle failed to defrost the evaporator and repeating the defrost cycle until the defrost cycle is successful or until a predetermined number of defrost cycles have been performed. After a predetermined number of successive failed defrost cycles, the method includes preventing further operation of the sealed system, e.g., by locking out compressor, until the frost and/or ice build-up is removed.

Abstract: A method for operating a water heater appliance includes determining a set temperature of the water heater appliance. The method also includes monitoring a temperature proximate to a lower heating element of the water heater appliance with a first temperature sensor of the water heater appliance and monitoring a temperature proximate to an upper heating element of the water heater appliance with a second temperature sensor of the water heater appliance. When the monitored temperature proximate the lower heating element is less than a first temperature threshold and the monitored temperature proximate the upper heating element is less than a second temperature threshold, the method includes turning the lower heating element on. When the monitored temperature proximate the upper heating element is equal to the set temperature, the method includes turning the lower heating element off. A related water heater appliance is also provided.

Abstract: A method for defrosting an evaporator of a sealed system includes determining that a defrost cycle is needed to remove frost from the evaporator and initiating such a defrost cycle. The method further includes determining that the defrost cycle failed to defrost the evaporator and repeating the defrost cycle until the defrost cycle is successful or until a predetermined number of defrost cycles have been performed. After a predetermined number of successive failed defrost cycles, the method includes preventing further operation of the sealed system, e.g., by locking out compressor, until the frost and/or ice build-up is removed.

Abstract: An electric water heater appliance is provided herein. The electric water heater appliance may include a tank, an electric heating element, and a temperature sensor. The tank may define an interior volume extending from a top portion to a bottom portion. The interior volume may define a volume height along a vertical direction between the bottom portion and the top portion. The electric heating element may be operable to heat water within the interior volume. The temperature sensor may be attached to the tank above the electric heating element. A sensor gap may be defined along the vertical direction between the electric heating element and the temperature sensor.

Abstract: A method for operating a water heater appliance includes determining a set temperature of the water heater appliance. The method also includes monitoring a temperature proximate to a lower heating element of the water heater appliance with a first temperature sensor of the water heater appliance and monitoring a temperature proximate to an upper heating element of the water heater appliance with a second temperature sensor of the water heater appliance. When the monitored temperature proximate the lower heating element is less than a first temperature threshold and the monitored temperature proximate the upper heating element is less than a second temperature threshold, the method includes turning the lower heating element on. When the monitored temperature proximate the upper heating element is equal to the set temperature, the method includes turning the lower heating element off. A related water heater appliance is also provided.

Abstract: The present subject matter provides a heat pump water heater appliance with a mounting assembly for coupling a compressor to a plate within a casing of the heat pump water heater appliance. The mounting assembly includes a post that extends through a foot of the compressor and a fastener that extends through the bracket and the plate into the post in order to secure the bracket and the post together. An attachment mechanism secures the post and the foot of the compressor together.

Abstract: The present subject matter provides chiller apparatus including a storage tank for storing the liquid and a refrigerant cooling system. The refrigerant cooling system includes a compressor attached to the storage tank, a condenser positioned downstream from the compressor to condense a refrigerant received therefrom, and at least one evaporator positioned downstream of the condenser and wrapped about the outer surface of the storage tank. The evaporator includes a negative pitch coil configured to direct refrigerant flow from a position near a top of the storage tank to a position near a bottom of the storage tank.

Abstract: The present subject matter provides a heat pump water heater appliance with a mounting assembly for coupling a compressor to a plate within a casing of the heat pump water heater appliance. The mounting assembly includes a post that extends through a foot of the compressor and a fastener that extends through the bracket and the plate into the post in order to secure the bracket and the post together. A nut is threaded onto the post in order to secure the post and the foot of the compressor together.

Abstract: The present subject matter provides a heat pump water heater appliance with a mounting assembly for coupling a compressor to a plate within a casing of the heat pump water heater appliance. The mounting assembly includes a post that extends through a foot of the compressor and a fastener that extends through the bracket and the plate into the post in order to secure the bracket and the post together. An attachment mechanism secures the post and the foot of the compressor together.

Abstract: The present subject matter provides a heat pump water heater appliance with a mounting assembly for coupling a compressor to a plate within a casing of the heat pump water heater appliance. The mounting assembly includes a post that extends through a foot of the compressor and a fastener that extends through the bracket and the plate into the post in order to secure the bracket and the post together. A nut is threaded onto the post in order to secure the post and the foot of the compressor together.

Abstract: A water heater appliance includes a sealed system and an electric heating element. The sealed system and electric heating element are configured for heating water within an interior volume of a tank. A temperature sensor is mounted to the tank. The electric heating element is positioned below the temperature sensor within the interior volume of the tank.