US US20080148746A1
Heating, ventilation, air conditioning, and refrigeration (HVAC&R) systems and heat exchangers are provided which contain integrated auxiliary cooling loops. The heat exchangers include multiple sets of multichannel tubes located on independent closed refrigeration loops. One closed loop functions as the main refrigeration loop of the system while another closed loop provides auxiliary cooling to system components. The closed loops are contained within the same heat exchanger, thus, allowing the auxiliary cooling loop to be integrated into an existing system.
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