| CPC F25B 41/34 (2021.01) [F24F 1/022 (2013.01); F24H 1/52 (2013.01); F24H 9/144 (2013.01); F25B 41/385 (2021.01); F24F 1/0323 (2019.02); F24F 1/0326 (2019.02); F24F 11/65 (2018.01); F24F 2110/12 (2018.01); F25B 2600/2513 (2013.01)] | 20 Claims |
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1. A combined air-cooling and water-heating system comprising:
a first electronic expansion valve in fluid communication with a condenser coil at a first end and an evaporator coil at a second end;
a second electronic expansion valve in fluid communication with a water heat exchanger at a first end and the evaporator coil at a second end, the second electronic expansion valve configured to transition between an open configuration, a closed configuration, and an intermediate configuration between the open configuration and the closed configuration;
a water temperature sensor;
an ambient air temperature sensor; and
a controller configured to:
output a first control signal in response to determining that an ambient air temperature detected by the ambient air temperature sensor is above a first predetermined temperature, the first control signal instructing the first electronic expansion valve to be at least partially open, and
output a second control signal in response to determining that a water temperature detected by the water temperature sensor is below a second predetermined threshold, the second control signal instructing the second electronic expansion valve to be in the open configuration or the intermediate configuration based on a comparison of an amount of hot water demand to a threshold hot water amount,
wherein heated refrigerant is provided to the condenser coil and to the water heat exchanger from the evaporator coil.
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9. A water heating and air conditioning system comprising:
a compressor;
an evaporator coil;
a condenser coil in fluid communication with the compressor at a first end the evaporator coil at a second end;
a water heat exchanger in fluid communication with the compressor at a first end the a first electronic expansion valve in fluid communication with a condenser coil at a first end and an evaporator coil at a second end;
a second electronic expansion valve in fluid communication with a water heat exchanger at a first end and the evaporator coil at a second end, the second electronic expansion valve configured to transition between an open configuration, a closed configuration, and an intermediate configuration between the open configuration and the closed configuration;
a water temperature sensor;
an ambient air temperature sensor; and
a controller configured to:
output a first control signal in response to determining that an ambient air temperature detected by the ambient air temperature sensor is above a first predetermined temperature, the first control signal instructing the first electronic expansion valve to be at least partially open, and
output a second control signal in response to determining that a water temperature detected by the water temperature sensor is below a second predetermined threshold, the second control signal instructing the second electronic expansion valve to be in the open configuration or the intermediate configuration based on a comparison of an amount of hot water demand to a threshold hot water amount,
wherein heated refrigerant is provided to the condenser coil and to the water heat exchanger from the evaporator coil.
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16. A controller for a combined water heating and air conditioning system comprising:
a processor; and
memory in communication with the processor and storing instructions that, when executed by the processor, cause the controller to:
receive, from a first temperature sensor, a first temperature signal indicating an ambient air temperature in a space is above a first predetermined temperature;
receive, from a second temperature sensor, a second temperature signal indicating a water temperature of water stored in a water storage tank is below a second predetermined temperature; and
output a first control signal in response to determining that the ambient air temperature is above a first predetermined temperature, the first control signal instructing a first electronic expansion valve to be at least partially open, and
output a second control signal in response to determining that the water temperature is below a second predetermined threshold, the second control signal instructing a second electronic expansion valve to be in an open configuration or an intermediate configuration between the open configuration and a closed configuration based on a comparison of an amount of hot water demand to a threshold hot water amount,
cause heated refrigerant to be provided to a condenser coil and to a water heat exchanger from an evaporator coil.
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