US 12,704,282 B2 · Heat pump with overdrive stage setting

Abstract

Examples of the present disclosure relate to systems and methods for providing an elevated third-stage of operation to a two-stage compressor of a climate control system. The first low stage and the second high stage are provided with open or closed bypass ports respectively and by operating the two-stage compressor at a rated power setting. The elevated third-stage of operation is provided by operating the two-stage compressor at the high stage with an overdrive power setting. The elevated third-stage may be enabled in heating mode and locked out in cooling mode. The two-stage compressor may be further locked out of the second high stage in cooling mode and an indoor fan may be operated at various speeds to provide additional cooling capacity. Switching between each stage of the two-stage compressor may be controlled by additional control circuitry including a plurality of relays.

Claims17

Dependent claims

A climate control system comprising:

a compressor including one or more stages, the compressor configured to receive a rated power input at a rated frequency;
and
control circuitry including electronic circuitry coupled to the compressor and providing a power supply to the compressor, the control circuitry configured to:
receive a signal indicative of an operating mode of the climate control system, the operating mode being one of either a heating mode or a cooling mode, and
control the power supply to the compressor, wherein in the cooling mode the power supply provided to the compressor is at the rated power input and the rated frequency,
wherein in the heating mode during a normal power setting the power supply provided to the compressor is at the rated power input and the rated frequency,
wherein in the heating mode during an overdrive power setting the power supply provided to the compressor is at a modified power input and an increased frequency, and
wherein the overdrive power setting drives the compressor over a rated speed level.

5 more elements

A method of controlling a compressor of a climate control system, the compressor including one or more stages and configured to receive a rated power input at a rated frequency, the method comprising:

receiving a signal indicative of an operating mode of the climate control system, the operating mode being one of either a heating mode or a cooling mode;
controlling a power supply to the compressor;
providing the power supply to the compressor at the rated power input and the rated frequency when the signal indicates the climate control system is operating in the cooling mode;
providing the power supply to the compressor at the rated power input and the rated frequency when the signal indicates the climate control system is operating in the heating mode and the compressor is operating at a normal power setting;
and
providing the power supply to the compressor at a modified power input and an increased frequency when the signal indicates the climate control system is operating in the heating mode and the compressor is operating at an overdrive power setting, wherein the overdrive power setting drives the compressor over a rated speed level.

3 more elements

Dependencies are inferred from the claim text.

Heat pump with overdrive stage setting

Life of this patent

Heat pump with overdrive stage setting

Life of this patent

Abstract

Claims17