Abstract: The disclosed technology includes systems and methods of reducing frost accumulation on a heat pump evaporator coil. The disclosed technology can include a heat pump assembly having an evaporator coil, a fan configured to direct air across the evaporator coil, a temperature sensor, and a controller configured to energize the fan to direct air across the evaporator coil when the temperature of the evaporator coil is below a threshold temperature.

Abstract: The disclosed technology includes systems and methods of reducing frost accumulation on a heat pump evaporator coil. The disclosed technology can include a heat pump assembly having an evaporator coil, a fan configured to direct air across the evaporator coil, a temperature sensor, and a controller configured to energize the fan to direct air across the evaporator coil when the temperature of the evaporator coil is below a threshold temperature.

Abstract: An electronic reversing valve for use in heat pump systems includes a housing having multiple ports and a slider positioned in a cavity of the housing, where the slider has multiple channels. The multiple ports and the multiple channels define refrigerant flow paths depending on a position of the slider in the cavity of the housing. The electronic reversing valve also includes a rotor positioned in the cavity of the housing and a stator positioned outside of the housing. The slider is moveable laterally within the cavity of the housing in response to a rotation of the rotor, where the rotor is designed to rotate in response to a magnetic force generated by the stator.