Rheem Manufacturing Company

Aniket R Kalambe

Harshad V Inamdar

Walter R Lowrimore

Randy W Foster

Neil D Hurt

Michael Andrews

A reheat system of an air conditioning unit includes a bypass line that fluidly couples an outlet of a reheat coil to an input end of a metering device. The reheat system includes a reheat exit line that fluidly couples the outlet of the reheat coil to an input of a condenser. A bypass valve is disposed in the bypass line and a reheat valve is disposed in the reheat exit line. A controller is configured to control the bypass valve and the reheat valve such that a refrigerant from the outlet of the reheat coil is routed to the metering device via the bypass line when an ambient temperature is greater than or equal to a cut off temperature value that is indicative of a high ambient temperature condition at which the condenser begins operating as an evaporator.

Sequential hot gas reheat system in an air conditioning unit

A defrost cycle control assembly includes a first sensor that is configured to measure a temperature adjacent a top portion of an outdoor heat exchanger of a heat pump, a second sensor that is configured to measure a temperature adjacent a bottom portion of the outdoor heat exchanger, and a third sensor that is configured to measure an ambient temperature. Further, the defrost cycle control assembly includes a controller that is configured to initiate a defrost cycle of the heat pump based on the temperature adjacent the top portion and the ambient temperature when said temperatures indicate formation of frost at the top portion of the outdoor heat exchanger where the first sensor is disposed. The controller is configured to terminate the defrost cycle when the temperature at the bottom portion reaches a termination temperature which indicates that the frost on the outdoor heat exchanger has melted.

Defrost cycle control assembly in a heat pump

A reheat system of an air conditioning unit includes a bypass line that fluidly couples an outlet of a reheat coil to an input end of a metering device. Further, the reheat system includes a reheat exit line that fluidly couples the outlet of the reheat coil to an input of a condenser. A bypass valve is disposed in the bypass line and a reheat valve is disposed in the reheat exit line. A controller is configured to control the bypass valve and the reheat valve such that a refrigerant from the outlet of the reheat coil is routed to the metering device via the bypass line when an ambient temperature is greater than or equal to a cut-off temperature value that is indicative of a high ambient temperature condition at which the condenser begins operating as an evaporator.

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Fort Smith, AK, United States of America

Aniket R Kalambe