Heat Pump with Multiple Mini-Compressors

A refrigerant circuit comprising:

• a first heat exchanger configured to output a refrigerant in a low-pressure state;
• a first compressor and a second compressor configured to receive the refrigerant from the first heat exchanger, wherein the first compressor and the second compressor are configured to output the refrigerant in a high-pressure state when the first compressor and the second compressor are activated;
• a second heat exchanger configured to receive the refrigerant from at least one of the first compressor and the second compressor, wherein the first compressor and the second compressor are disposed in a parallel arrangement between the first heat exchanger and the second heat exchanger;
• and
• a controller communicatively connected with the first compressor and the second compressor, wherein the controller is configured to activate one or both of the first compressor and the second compressor based on at least one of date and time information, an ambient temperature, a compressor health status, a water tank temperature profile, and/or a hot water demand scenario.

A method to control a refrigerant circuit, the method comprising:

• obtaining, by a controller, at least one of date and time information, an ambient temperature, a heating demand, and a compressor health status, wherein the refrigerant circuit comprises:
• a first heat exchanger configured to output a refrigerant in a low-pressure state;
• a first compressor and a second compressor configured to receive the refrigerant from the first heat exchanger, wherein the first compressor and the second compressor are configured to output the refrigerant in a high-pressure state when the first compressor and the second compressor are activated;
• a second heat exchanger configured to receive the refrigerant from at least one of the first compressor and the second compressor, wherein the first compressor and the second compressor are disposed in a parallel arrangement between the first heat exchanger and the second heat exchanger;
• and
• activating, by the controller, at least one of the first compressor and the second compressor based on at least one of the date and time information, the ambient temperature, the heating demand, and the compressor health status.