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Heat pump apparatus and method

  • US 4,474,021 A
  • Filed: 01/25/1983
  • Issued: 10/02/1984
  • Est. Priority Date: 02/02/1982
  • Status: Expired due to Fees
First Claim
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1. A temperature and humidity control system comprising:

  • a heat pump including a compressor, an inside air coil and an outside air coil;

    vaporizable refrigerant contained in a closed conduit communicating with said compressor, said inside air coil and said outside air coil;

    a regeneratable dessicant material;

    valve and conduit means for selectably directing air into and communicating with said inside air coil, said outside air coil and said dessicant material, said valve and conduit means comprising;

    first means operable in a cooling/dehumidifying mode for supplying inside air first to said inside air coil and from said inside air coil to said dessicant material, and from said dessicant material to a volume sought to be conditioned;

    second means operable in a heating/humidifying mode for supplying air first to said inside air coil and from said inside air coil to said dessicant material for humidifying of said air and thence to a volume sought to be conditioned;

    third means operable in said cooling/dehumidifying mode for supplying outside air first to said outside air coil and from said outside air coil to said dessicant material for dehumidifying said dessicant material;

    fourth means operable in said heating/humidifying mode for supplying outside air first to said outside air coil and from said outside air coil to said dessicant material for regenerating said dessicant material; and

    fifth means operative in a heating/humidifying/frost avoidance mode causing outside air to communicate first with said dessicant material and thence with said outside air coil.

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