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US 6,644,049 B2Granted
Space conditioning system having multi-stage cooling and dehumidification capability
AssigneeLennox Manufacturing Inc.
InventorMalcolm L. Alford
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AssigneeLennox Manufacturing Inc.
InventorMalcolm L. Alford
Estimating the term…
In accordance with the present invention, a space conditioning system having multi-stage cooling and dehumidification capability is provided. The system includes plural refrigeration circuits operable in a cooling mode to provide cooled air to an indoor space. At least one of the refrigeration circuits is also operable in a reheat mode, wherein air is dehumidified by cooling it and then reheating it before it is supplied to the space. A control system is provided for controlling the operation of the refrigeration circuits to satisfy both a demand for cooling and a demand for dehumidification. Depending upon the level of demand for cooling, the system is operated to satisfy the dehumidification demand and the cooling demand simultaneously. However, in response to a higher level of demand for cooling (e.g., a second stage demand, or in some cases, a higher demand), the demand for cooling takes priority over the dehumidification demand. When the system is equipped with an economizer option, the economizer is operated to provide free cooling when the ambient outdoor air conditions are suitable. However, when a demand for dehumidification is present, the economizer option is not used, even if the ambient outdoor air conditions are suitable and there is a demand for cooling in the space.
A space conditioning system for conditioning air within an enclosed space, comprising:
Control apparatus for a space conditioning system for conditioning air within an enclosed space, the system including an air mover for circulating conditioned air to the space and plural discrete refrigeration circuits, each of which is operable in a cooling mode, wherein air circulated to the space is cooled, at least one of said refrigeration circuits being further operable in a reheat mode, wherein air circulated to the space is first cooled and then reheated by operation of a same refrigeration circuit, said control apparatus comprising:
A space conditioning system for conditioning air within an enclosed space, comprising:
Dependencies are inferred from the claim text.