Air-conditioning system

Claim 2

A combined liquid heating and cooling apparatus comprising: a housing; a partition dividing the space within said housing into first and second chambers; a refrigerant compressor within said first chamber; a refrigerant condenser within said first chamber; fan means disposed to pass outdoor cooling air into said first chamber in heat exchange relation with said condenser; a liquid heater disposed within the upper portion of said second chamber; an outer spiral tube disposed within the lower portion of said second chamber; a refrigerant throttling means; a refrigerant circuit respectively serially connecting said refrigerant compressor, said refrigerant condenser, said refrigerant throttling means, and said outer tube in a closed refrigerant loop; an inner tube disposed within said outer tube; and conduit means communicating with said liquid heater and the interior of said inner tube adapted to conduct a heat exchange liquid to and from a heat exchanger external to said housing.

Claim 3

The apparatus as defined by claim 1 including a foamed-in-place insulation substantially filling the space between the outer spiral tube and the housing in the lower portion of said second chamber and an insulation liner disposed on the inner walls of the upper portion of said second chamber.

Claim 4

A heating and cooling air-conditioning system comprising: an indoor heat exchanger arranged in heat exchange relationship with a conditioned space; combined heating and cooling means for supplying said indoor heat exchanger with a heating and cooling heat exchange liquid; first conduit means for conducting a heat exchange liquid from said heating and cooling means to said indoor heat exchanger; second conduit means for returning the heat exchange liquid to said heating and cooling means from said indoor heat exchanger; said heating and cooling means including a housing defining a chamber therein; a liquid chiller within said chamber; a liquid heater within said chamber; means for conducting the heat exchange liquid from said liquid chiller and heater to said first conduit means; means for conducting the heat exchange liquid from said second conduit means to said liquid chiller and heater; pump means for circulating the heat exchange liquid between said indoor heat exchanger and said combined heating and cooling means; and means for selectively passing said heat exchange fluid selectively through said heater and through said chiller to the exclusion of said heater.

Claim 5

A heating and cooling air-conditioning system comprising: an indoor heat exchanger arranged in heat exchange relationship with a conditioned space; combined heating and cooling means for supplying said indoor heat exchanger with a heating and cooling heat exchange liquid; first conduit means for conducting a heat exchange liquid from said heating and cooling means to said indoor heat exchanger; second conduit means for returning the heat exchange liquid to said heating and cooling means from said indoor heat exchanger; said heating and cooling means including a housing defining a chamber therein; a liquid chiller within said chamber; a liquid heater within said chamber; means for conducting the heat exchange liquid from said liquid chiller and heater to said first conduit means; means for conducting the heat exchange liquid from said second conduit means to said liquid chiller and heater; pump means for circulating the heat exchange liquid between said indoor heat exchanger and said combined heating and cooling means; and means for selectively passing said heat exchange fluid selectively through said heater and through said chiller to the exclusion of said heater.

Claim 6

A heating and cooling air-conditioning system comprising: an indoor heat exchanger arranged in heat exchange relationship with a conditioned space; combined heating and cooling means for supplying said indoor heat exchanger with a heating and cooling heat exchange liquid; first conduit means for conducting a heat exchange liquid from said heating and cooling means to said indoor heat exchanger; second conduit means for returning the heat exchange liquid to said heating and cooling means fRom said indoor heat exchanger; said heating and cooling means including a housing defining a chamber therein; a liquid chiller within said chamber; a liquid heater within said chamber; means for conducting the heat exchange liquid from said liquid chiller and heater to said first conduit means; means for conducting the heat exchange liquid from said second conduit means to said liquid chiller and heater; pump means for circulating the heat exchange liquid between said indoor heat exchanger and said combined heating and cooling means; and means responsive to the temperature of said conditioned space for selectively operating said liquid chiller and liquid heater.

Claim 7

A heating and cooling air-conditioning system comprising: an indoor heat exchanger arranged in heat exchange relationship with a conditioned space; combined heating and cooling means for supplying said indoor heat exchanger with a heating and cooling heat exchange liquid; first conduit means for conducting a heat exchange liquid from said heating and cooling means to said indoor heat exchanger; second conduit means for returning the heat exchange liquid to said heating and cooling means fRom said indoor heat exchanger; said heating and cooling means including a housing defining a chamber therein; a liquid chiller within said chamber; a liquid heater within said chamber; means for conducting the heat exchange liquid from said liquid chiller and heater to said first conduit means; means for conducting the heat exchange liquid from said second conduit means to said liquid chiller and heater; pump means for circulating the heat exchange liquid between said indoor heat exchanger and said combined heating and cooling means; and means responsive to the temperature of said conditioned space for selectively operating said liquid chiller and liquid heater.