Abstract:
A method for determining whether a water heater appliance is operating on a timer switch is provided. The method includes determining a power on time interval between a previous power interruption and a current power interruption if the current power interruption is a long power outage and establishing that the water heater appliance is not operating with a timer switch if the power on time interval is greater than a threshold time interval. A related water heater appliance is also provided.
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:
A dual fuel—gas fuel and electric heat pump—water heater is provided that captures waste heat from the exhaust flue of the gas fuel heating system and utilizes it in the evaporator of the electric heat pump. Multiple mechanisms are disclosed for the transfer of heat from the exhaust flue gases to the evaporator. Heat from the exhaust gas that would otherwise be lost is used to help heat refrigerant in the evaporator to improve the efficiency of the system. This heat can also be used to prevent or remove frozen condensate on the evaporator.
Abstract:
Systems and methods for adjusting anode rod galvanic corrosion are provided. An exemplary water heater includes a tank for holding a volume of water. The water heater also includes an anode rod extending into the water and electrically connected to an electrical ground such that a galvanic current flows from the anode rod to the electrical ground. The water heater includes at least one heating element configured to heat the water when energized. The water heater also includes a resistor configuration connected between the anode rod and the electrical ground such that the galvanic current flows through the resistor configuration. The resistor configuration provides a variable resistance.
Abstract:
A method for determining whether a water heater appliance is operating on a timer switch is provided. The method includes determining a power on time interval between a previous power interruption and a current power interruption if the current power interruption is a long power outage and establishing that the water heater appliance is not operating with a timer switch if the power on time interval is greater than a threshold time interval. A related water heater appliance is also provided.
Abstract:
Water heaters and methods for monitoring anode rod depletion in water heaters are provided. A water heater includes a tank for holding a volume of water, and an anode rod extending into the water and electrically connected to an electrical ground such that a galvanic current flows from the anode rod to the electrical ground. The water heater further includes at least one heating element configured to heat the water when energized, and a controller. The controller is configured to receive a galvanic current level, compare the galvanic current level to a threshold current level, and transmit an alert signal when the galvanic current level is less than the threshold current level.
Abstract:
The present subject matter relates to methodologies and algorithms for providing anode rod depletion detection and warnings thereof to consumers. Consumers general are not concerned with monitoring consumption of protective anode rods incorporated within water heaters, The present subject matter provides automatic monitoring of anode rod depletion and provides the consumer with notification of rod depletion beyond a predetermined amount by one or more of optical, audible, or electronic devices. Aspects of the algorithm include handling of start-up conditions, service board replacement conditions, and properly defining the anode rod depletion threshold. Additional algorithm aspects include considerations for taking into consideration power outage conditions and accurately estimating galvanic current.
Abstract:
The present subject matter relates to methodologies and algorithms for providing anode rod depletion detection and warnings thereof to consumers. Consumers general are not concerned with monitoring consumption of protective anode rods incorporated within water heaters, The present subject matter provides automatic monitoring of anode rod depletion and provides the consumer with notification of rod depletion beyond a predetermined amount by one or more of optical, audible, or electronic devices. Aspects of the algorithm include handling of start-up conditions, service board replacement conditions, and properly defining the anode rod depletion threshold. Additional algorithm aspects include considerations for taking into consideration power outage conditions and accurately estimating galvanic current.
Abstract:
Systems and methods for adjusting anode rod galvanic corrosion are provided. An exemplary water heater includes a tank for holding a volume of water. The water heater also includes an anode rod extending into the water and electrically connected to an electrical ground such that a galvanic current flows from the anode rod to the electrical ground. The water heater includes at least one heating element configured to heat the water when energized. The water heater also includes a resistor configuration connected between the anode rod and the electrical ground such that the galvanic current flows through the resistor configuration. The resistor configuration provides a variable resistance.
Abstract:
The present subject matter relates to methodologies for sensing anode rod depletion. Consumers generally are not concerned with monitoring consumption of protective anode rods incorporated within water heaters. The present subject matter provides automatic monitoring of anode rod depletion and provides the consumer with notification of rod depletion beyond a predetermined amount. The principles of Faraday's Law are used to calculate anode weight loss by conversion of measured and accumulated current.