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HEAT PUMP APPARATUS AND METHOD

  • US 20080173034A1
  • Filed: 01/19/2007
  • Published: 07/24/2008
  • Est. Priority Date: 01/19/2007
  • Status: Abandoned Application
First Claim
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1. A heat pump system including:

  • a primary compressor;

    a booster compressor;

    at least said primary compressor being a variable capacity compressor,a refrigerant conduit system, said primary compressor and said booster compressor being in series in said refrigerant conduit system, and said conduit system including a first conduit segment connected to deliver refrigerant to the inlet to said primary compressor when said booster compressor in inoperative, and said conduit system including a second conduit segment between the discharge from said booster compressor and the inlet to said primary compressor to deliver refrigerant between said booster compressor and said primary compressor when both of said compressors are operating;

    a first temperature sensor for sensing the temperature of outdoor ambient air;

    a controller, said controller being connected between a thermostat and said primary and booster compressors, said controller receiving signals from said first temperature sensor and from the thermostat to operate said primary compressor and said booster compressor in a predetermined sequence as follows;

    (a) effect a first mode of operation of partial capacity operation of said primary compressor (M1) when the thermostat is calling for heat and the signal from said first temperature sensor indicates an outdoor air temperature in a first range of temperatures;

    (b) effect operation in M1 and effect a second mode of operation of full capacity operation of said primary compressor (M2) when the thermostat is calling for heat and the signal from said first temperature sensor indicates an outdoor air temperature in a second range of temperatures;

    (c) effect operation in M2 and effect a third mode of operation of full capacity operation of said primary compressor, and operation of said booster compressor (M3) when the thermostat is calling for heat and the signal from said first temperature sensor indicates an outdoor air temperature in a third range of temperatures.

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  • 6 Assignments
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