Patent ID: 8250878

Claim:
A system for conditioning air entering an interior space comprising: a first conditioning circuit for carrying a first fluid, said first conditioning circuit including a first heat exchanger, a second heat exchanger, and a compressor interposed between said first and second heat exchangers; a supply section having an inlet for receiving air and having an outlet for providing supply air to said interior space, said first heat exchanger residing in said supply section; a return section having a first inlet for receiving return air from said interior space and an outlet for releasing said return air outside of said interior space, said second heat exchanger residing in said return section; a controller in communication with said conditioning circuit; and a second conditioning circuit comprising a third heat exchanger, and a second compressor; wherein: said third heat exchanger resides in said supply section; said second conditioning circuit is in fluid communication with said first conditioning circuit; and said controller determines a dehumidification mode and selectively actuates said second conditioning circuit in response to said dehumidification mode.