Patent ID: 9638439
Date: 2017-05-02
CPC Classifications: F24H,G05D

Claim:
1. A water heater appliance, comprising: a casing; a tank disposed within the casing, the tank defining an interior volume; a sealed system operable to heat water within the interior volume of the tank, the sealed system comprising an evaporator and a compressor positioned within the casing at a top portion of the casing above the tank, a condenser of the sealed system mounted to the tank; a cold water conduit mounted to the tank adjacent the top portion of the casing and configured for directing water into the interior volume of the tank; a heated water conduit mounted to the tank adjacent the top portion of the casing and configured for directing water out of the interior volume of the tank; a bypass conduit positioned within the casing at the top portion of the casing and extending from the cold water conduit; a mixing valve positioned within the casing, the mixing valve fluidly coupled to the heated water conduit and the bypass conduit, a valve body of the mixing valve mounted to the heated water conduit and the bypass conduit, a plug of the mixing valve positioned with the valve body, a wax thermostat of the mixing valve positioned with the valve body and coupled to the plug, the wax thermostat configured for moving the plug within the valve body in order to adjust a mixing ratio of the mixing valve, a stem of the mixing valve threaded to the valve body, the stem extending through the valve body to the wax thermostat; and an actuator assembly comprising