Method and system for operating a water heater appliance
First Claim
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1. A method for operating a water heater appliance, comprising:
- initiating a vacation mode of the water heater appliance in which an operating temperature of a stored tank of water in the water heater appliance is reduced from a normal operating temperature to a vacation operating temperature, the vacation operating temperature being between forty degrees Fahrenheit and sixty degrees Fahrenheit;
maintaining the stored tank of water in the water heater appliance in the vacation mode at the vacation operating temperature for a predetermined time period, the predetermined time period being less than fourteen days;
starting a thermal sanitization mode of the stored tank of water in the water heater appliance after the predetermined time period has elapsed, the operating temperature of the stored tank of water in the water heater appliance rising from the vacation operating temperature to a sanitization operating temperature in the thermal sanitization mode, the sanitization operating temperature being greater than one-hundred and twenty degrees Fahrenheit;
keeping the stored tank of water in the water heater appliance in the thermal sanitization mode at the sanitization operating temperature for a period of time; and
returning the stored tank of water in the water heater appliance to the vacation mode after the period of time has elapsed,wherein a heating element of the water heater appliance is activated to raise the operating temperature of the stored tank of water from the vacation operating temperature to the sanitization operating temperature, andwherein water in the stored tank of water is not chemically treated during the thermal sanitization mode.
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Abstract
A method and system for operating a water heater appliance are provided. The method and system include initiating a vacation mode of the water heater appliance. An operating temperature of the water heater appliance is reduced from a normal operating temperature to a vacation operating temperature in the vacation mode of the water heater appliance. The method and system also include sanitizing the water heater appliance by raising the operating temperature of the water heater appliance from the vacation operating temperature to a sanitization operating temperature.
18 Citations
11 Claims
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1. A method for operating a water heater appliance, comprising:
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initiating a vacation mode of the water heater appliance in which an operating temperature of a stored tank of water in the water heater appliance is reduced from a normal operating temperature to a vacation operating temperature, the vacation operating temperature being between forty degrees Fahrenheit and sixty degrees Fahrenheit; maintaining the stored tank of water in the water heater appliance in the vacation mode at the vacation operating temperature for a predetermined time period, the predetermined time period being less than fourteen days; starting a thermal sanitization mode of the stored tank of water in the water heater appliance after the predetermined time period has elapsed, the operating temperature of the stored tank of water in the water heater appliance rising from the vacation operating temperature to a sanitization operating temperature in the thermal sanitization mode, the sanitization operating temperature being greater than one-hundred and twenty degrees Fahrenheit; keeping the stored tank of water in the water heater appliance in the thermal sanitization mode at the sanitization operating temperature for a period of time; and returning the stored tank of water in the water heater appliance to the vacation mode after the period of time has elapsed, wherein a heating element of the water heater appliance is activated to raise the operating temperature of the stored tank of water from the vacation operating temperature to the sanitization operating temperature, and wherein water in the stored tank of water is not chemically treated during the thermal sanitization mode. - View Dependent Claims (2, 3)
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4. A method for operating a water heater appliance, comprising:
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initiating a vacation mode of a stored tank of water in the water heater appliance in which an operating temperature of the stored tank of water in the water heater appliance is reduced from a normal operating temperature to a vacation operating temperature, the vacation operating temperature being between forty degrees Fahrenheit and sixty degrees Fahrenheit; determining a vacation mode duration; calculating a sanitization schedule for the stored tank of water in the water heater appliance based at least in part on the vacation mode duration and a sanitization time interval, the sanitization time interval being less than fourteen days, the sanitization schedule having at least one thermal sanitization operation; starting the thermal sanitization operation of the stored tank of water in the water heater appliance based upon the sanitization schedule, the operating temperature of the stored tank of water in the water heater appliance rising from the vacation operating temperature to a sanitization operating temperature during the at least one thermal sanitization operation, the sanitization operating temperature being greater than one-hundred and twenty degrees Fahrenheit; and returning the stored tank of water in the water heater appliance to the vacation mode after completion of each thermal sanitization operation of the at least one thermal sanitization operation, wherein a heating element of the water heater appliance is activated to raise the operating temperature of the stored tank of water from the vacation operating temperature to the sanitization operating temperature, and wherein water in the stored tank of water is not chemically treated during each thermal sanitization operation of the at least one thermal sanitization operation. - View Dependent Claims (5, 6)
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7. A system for operating a water heater appliance, comprising:
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a heating element positioned within the water heater appliance; a user input; and a controller in communication with said heating element and said user input, said controller configured for; receiving a vacation mode initiation signal from said user input; initiating a vacation mode of a stored tank of water in the water heater appliance based upon the vacation mode initiation signal, an operating temperature of the stored tank of water in the water heater appliance being reduced from a normal operating temperature to a vacation operating temperature in the vacation mode, the vacation operating temperature being between forty degrees Fahrenheit and sixty degrees Fahrenheit; activating said heating element after a predetermined period of time has elapsed after said step of initiating, the predetermined period of time being less than fourteen days, said heating element raising the operating temperature of the stored tank of water in the water heater appliance from the vacation operating temperature to a sanitization operating temperature during said step of activating, the sanitization operating temperature being greater than one-hundred and twenty degrees Fahrenheit; and adjusting the operating temperature of the stored tank of water in the water heater appliance in order to return the operating temperature of the stored tank of water in the water heater appliance from the sanitization operating temperature to the vacation operating temperature, and wherein water in the stored tank of water is not chemically treated during the vacation mode. - View Dependent Claims (8, 9, 10, 11)
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Specification